[Rails] Re: Check Box and Radio Button

[Salil Gaikwad]

>   I am using multiple check box and a radio
> button and when I click the "Submit" button, it calls the "create"
> method it is inserting only 1 value for checkbox and also for the radio
> button.
> Could you please tell how to insert multiple check box values in create.
> Please send me the link if you have any sample programs.
<% for something in @something %>
   <%= check_box_tag name[], somethind.id, checked = false  %>
<% end %>
and you receive the id's of the checked check boxes in array of name 
i.e.  params[:name]



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[Rails] Re: how to ensure

[daociyiyou]

I need your help!Thanks!

On Apr 16, 11:03 am, daociyiyou  wrote:
>  how do i get my app database info only after another server has
> called my app's method and
>  updated my app's database? Now, i can just get the database info
> before anther server calls my app's method.
>
> def one
>   some code
>   two
>   some code
> end
>
> def two
>  calls another server's methods and sends my app ping url(http://
> myhost/.../three) that will be automaticlly called by that server
> after executing the two method
> end
>
> def three
>   another server calls this method and updates database
> end
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[Rails] Re: Rating Model and DB Relationships

[Marnen Laibow-Koser]

Hmm, let's see...

Jason wrote:
[...]
> I am building a user rating system for words and quotes. If I wanted a
> user to be able to rate a word or quote only once, how can I set up
> the ratings table so it will have the appropriate relationships. Since
> the rating model is a bit polymorphic (rate words or quotes), I am not
> sure if I need a "bridge table".

A bridge table has to do with many-to-many relationships, not 
polymorphic relationships, unless I'm misunderstanding.

> I want to be able to do things like
> 
> word.rating.value
> quote.rating.value
> user.rating.value

How about using STI?

class Word < Rateable
  has_many :ratings
end

class Quote < Rateable
and
class User < Rateable
likewise

class Rating < ActiveRecord::Base
  belongs_to :rateable, :polymorphic => true
end

(Syntax may be slightly off...working from memory.)

There might be a plugin to make this easier.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
mar...@marnen.org
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[Rails] Re: ROR performance for milions pageviews/month

[Chris Kottom]

Hi Tom,

Just to fine tune your original question, you're probably most interested in
knowing whether or not a Rails equivalent to your current ASP application
will be capable of running on the same hardware and infrastructure as your
existing setup with approximately the same resource requirements and
performance.  If I were sitting down with you as a consultant, I would
immediately ask the following questions:

   - What does your current hardware and infrastructure solution look like?
   (i.e. number and type of servers, where hosted, etc.)
   - What does your application look like?  (i.e. mostly static content,
   dynamic application functionality, little/lots of Ajax, etc.)
   - How much higher is your peak load than your average load?  (i.e. 10x,
   50x, 100x, etc.)

Without that information, you're going to get a lot of answers about how
Rails scales well without really knowing whether or not Rails will scale
well for you.  However, if we assume a peak load somewhere between 10x and
20x, you're talking about something on the order of a few hundred requests
per minute which is not such a high demand to place on a basic Rails app
running on a single recent model server, especially if you're able to
implement some form of caching.


On Thu, Apr 16, 2009 at 5:31 AM, Phillip  wrote:

>
> What would happen if you put an iFrame on the current site that
> requests a response from a rails test app? It could be invisible to
> the end user, and the requested asp page wouldn't depend on it. You
> would be able to look at the logs and follow the activity from the
> rails site. This might give you some basic insights into performance
> issues.
>
>
> On Apr 14, 1:26 pm, Tom Lobato  wrote:
> >   Hi all!
> >
> >   I`ll rewrite a 10 years old site, written in asp/mysql
> > (www.motonline.com.br). Now it has one milion page views a month, and
> > we can hope it grows after rewrite. Well, I know several ror sites,
> > but have no idea about its access stats. I already use ror for smaller
> > projects and only need to confirm if ror can satisfy the performance
> > demands for this.
> >   Can you comment about the ror performance for such a page view scale
> > and/or point to some cases or statistics from existing sites?
> >
> >  Thank you,
> >  Tom Lobato
> >
>

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[Rails] Re: Have simple sidebar code snippet for application.html.erb?

[Freddy Andersen]

or


  
<%= content_for(:side) %>
  
  
<%= yield %>
  


Then use css to float the side and content to the left with some
with...

Was that what you wanted?
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[Rails] Check Box and Radio Button

[Naveen Naveen]

  I am using multiple check box and a radio
button and when I click the "Submit" button, it calls the "create"
method it is inserting only 1 value for checkbox and also for the radio
button.
Could you please tell how to insert multiple check box values in create.
Please send me the link if you have any sample programs.



 Also, in the scaffold edit page, the default "edit" method displays
all the fields (including checkbox and radio buttons) as
"text_field"(text box) with only single value.
Could you please tell how to populate multiple checkbox and radio
buttons in the edit page with the values populating.
Please send me the link if you have any sample programs.
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[Rails] Re: Have simple sidebar code snippet for application.html.erb?

[melvin ram]

http://pastie.org/private/wcmbr5es6waf50aokxfoig

This is from a real app

On Apr 15, 9:09 pm, Rob Blimploid 
wrote:
> Googled forever trying to find a good example of how to do a simple
> sidebar (code snippet) in application.html.erb.  I've found bits and
> pieces, but I need the whole "piece of meat".
>
> Is anyone willing to share a complete example code snippet for doing a
> sidebar? I'm thinking it may involve some new "show" code in the
> controller as well?
>
> Your help will be most appreciated!
>
> Thanks rubio
> --
> Posted viahttp://www.ruby-forum.com/.
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[Rails] Re: Have simple sidebar code snippet for application.html.erb?

[Conrad Taylor]

On Wed, Apr 15, 2009 at 9:09 PM, Rob Blimploid <
rails-mailing-l...@andreas-s.net> wrote:

>
> Googled forever trying to find a good example of how to do a simple
> sidebar (code snippet) in application.html.erb.  I've found bits and
> pieces, but I need the whole "piece of meat".
>
> Is anyone willing to share a complete example code snippet for doing a
> sidebar? I'm thinking it may involve some new "show" code in the
> controller as well?
>
> Your help will be most appreciated!
>
> Thanks rubio


Hi, I would recommend taking a look at the "AWDwRails 3rd Edition"
construction
of the depot application section page 91 - 93, section B2:  Adding a Page
Layout.

God luck,

-Conrad


>
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>

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[Rails] Have simple sidebar code snippet for application.html.erb?

[Rob Blimploid]

Googled forever trying to find a good example of how to do a simple
sidebar (code snippet) in application.html.erb.  I've found bits and
pieces, but I need the whole "piece of meat".

Is anyone willing to share a complete example code snippet for doing a
sidebar? I'm thinking it may involve some new "show" code in the
controller as well?

Your help will be most appreciated!

Thanks rubio
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[Rails] Re: ROR performance for milions pageviews/month

[Phillip]

What would happen if you put an iFrame on the current site that
requests a response from a rails test app? It could be invisible to
the end user, and the requested asp page wouldn't depend on it. You
would be able to look at the logs and follow the activity from the
rails site. This might give you some basic insights into performance
issues.


On Apr 14, 1:26 pm, Tom Lobato  wrote:
>   Hi all!
>
>   I`ll rewrite a 10 years old site, written in asp/mysql
> (www.motonline.com.br). Now it has one milion page views a month, and
> we can hope it grows after rewrite. Well, I know several ror sites,
> but have no idea about its access stats. I already use ror for smaller
> projects and only need to confirm if ror can satisfy the performance
> demands for this.
>   Can you comment about the ror performance for such a page view scale
> and/or point to some cases or statistics from existing sites?
>
>  Thank you,
>  Tom Lobato
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[Rails] Re: Rails and Sphinx

[Daniel Bush]

2009/4/16 fausto 

>
> Hi, i'm currently using ferret+acts_as_ferret for doing some searches
> in the db (not so big for now, just 40k~ records, but they will be
> near 2M+ soon). For now ferret it's working quite well, but sometimes
> i've indexes corrupted (i use it's drb server in production) and i've
> to rebuild all the indexes, so i've bad indexes, angry users and time
> spent to make it right.
> I'm looking at sphinx and it seems the answers to this problems, as it
> seems that it doesn't have this such of problems. But i've seen that
> i've to remake indexes everytime (/hour or less).. does it take a lot
> to rebuild them?
> Is there anyone who use shpinx in production?
> Another big question about it is if it's possible to create custom
> indexes without having the records in the db,


You can send an xml "docset" document to sphinx to build the index; use the
xmlpipe2 source type in your conf and have a script that will generate the
xml to STDOUT.
The docset contains a set of documents with id's (which you might map to the
id in a table in your database if you were using it). Each document contains
a set of field tags with the information you want to index.
I don't know how that squares with large datasets - my app was very small.
I use the Riddle client that comes with Thinking Sphinx to talk to searchd.

Some of this stuff is documented on the sphinx website somewhere, though
piecing it altogether took some effort.

-- 
Daniel Bush

http://blog.web17.com.au

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[Rails] Re: ActiveRecord Comparison Bug?

[Philip Hallstrom]

> Hi Fred,
>
> Thank you for the response! What you said made sense. thanks for the
> explanation.
>
> However, looking at the last criteria of the == implementation, we can
> see why something like what i mentioned would fail:
>
> let's say i have an 2 AR objects:
>> old = Something.find(1)
> => #
>
> then i create a new object:
>> new = Something.new
> => #
>> new.id = 1 # something like this is possible, how or why is another  
>> story...
>> new
> => #
>
> now do:
>> new == old
> => true
>> old == new
> => false
>
> == method should be commutative, right?

You've got something screwy somewhere...

old = Toy.fin>> old = Toy.find(1)
=> #
 >> new = Toy.new
=> #
 >> new.id = 1
=> 1
 >> old == new
=> false
 >> new == old
=> false

Rails 2.3.2.1

-philip







> appreciate any comments!
> -Moo
>
> On Apr 10, 10:52 am, Frederick Cheung 
> wrote:
>> On Apr 10, 5:50 pm, Moo  wrote:> Anyone has any  
>> thoughts on this please?
>>
>> Basically the rationale is that == should mean 'do these objects
>> correspond to the same database row ?'
>>
>> The reason why unsaved records are special cased is that two unsaved
>> record would have equal id (nil in both cases) but if you saved them
>> you would end up with 2 distinct rows in your database.
>>
>> I'm not sure why you're getting  new ==old not being the same as old
>> == new. They should both be false (and are on my machine)
>>
>> Fred
>>
>>> On Apr 8, 5:29 pm, Moo  wrote:
>>
 Hi Everyone,
>>
 I'm running into a problem with theActiveRecord::Base "==" method
 defined here (it's 2.3.2, but it looks the same in older versions
 too):
>>
   # File rails-2.3.2/activerecord/lib/active_record/base.rb,  
 line
 2816
 2816:   def ==(comparison_object)
 2817: comparison_object.equal?(self) ||
 2818:   (comparison_object.instance_of?(self.class) &&
 2819: comparison_object.id == id &&
 2820: !comparison_object.new_record?)
 2821:   end
>>
 Because of the last criteria (!comparison_object.new_record?),
 something like this happens... say i have a new record and an  
 existing
 record (different objects) and compare them:
>>
> new == old
 => true
> old == new
>>
 => false
>>
 If this is intentional, can someone please explain why this is?
>>
 Also what is the rational of only comparing the ID and not the  
 all the
 values too and why does it matter if it's a new record or not?
>>
 Thank you!
 -Moo
> >


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[Rails] how to ensure

[daociyiyou]

 how do i get my app database info only after another server has
called my app's method and
 updated my app's database? Now, i can just get the database info
before anther server calls my app's method.

def one
  some code
  two
  some code
end

def two
 calls another server's methods and sends my app ping url(http://
myhost/.../three) that will be automaticlly called by that server
after executing the two method
end

def three
  another server calls this method and updates database
end
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[Rails] Re: Rating Model and DB Relationships

[Jason]

I appreciate the debate, and I agree the constraint should be the DB
as a primary.

Back to my main question though - how should the relationships be set
up for a rating system?
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[Rails] Re: URL Redirect and affect on Routes?

[Jason]

Thanks, I figured this should be a Rewrite rule but was not familiar
enough with rails/routes to determine if I was making it more
complicated. I feel pretty confident in working with Apache.

Thanks much!

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[Rails] Re: install error for rails-widgets

[Rick]

Are you running Rails 2.3.2 by any chance?  If so, you might need to
patch a file related to "plugin install git..."

On Apr 15, 4:03 am, nmt999  wrote:
> When I executed the install command, I did not get any output. The only thing
> I noticed after investigating my application directory is that, it created a
> directory in vendor/plugins/rails-widgets. However, this directory is empty.
>
> Thanks,
>
>
>
> Rick-13 wrote:
>
> > This is what you should see as a result of your plugin install:
>
> > /widgets 516 > script/plugin install
> > git://github.com/paolodona/rails-widgets.git
> > Initialized empty Git repository in /Users/rick/widgets/vendor/plugins/
> > rails-widgets/.git/
> > remote: Counting objects: 78, done.
> > remote: Compressing objects: 100% (71/71), done.
> > remote: Total 78 (delta 8), reused 21 (delta 0)
> > Unpacking objects: 100% (78/78), done.
> > From git://github.com/paolodona/rails-widgets
> >  * branch            HEAD       -> FETCH_HEAD
> > cp /Users/rick/widgets/vendor/plugins/rails-widgets/images/
> > tooltip_arrow.gif /Users/rick/widgets/public/images/widgets/
> > tooltip_arrow.gif
> > cp /Users/rick/widgets/vendor/plugins/rails-widgets/images/
> > tooltip_image.gif /Users/rick/widgets/public/images/widgets/
> > tooltip_image.gif
> > cp /Users/rick/widgets/vendor/plugins/rails-widgets/javascripts/
> > tooltip.js /Users/rick/widgets/public/javascripts/widgets/tooltip.js
>
> > Did you omit this output from your mail message or what?  Was any
> > output produced when you ran the install?
>
> > On Apr 14, 2:05 pm, nmt999  wrote:
> >> When i am trying to install the rails-widgets on windows vista
> >> fromhttp://wiki.github.com/paolodona/rails-widgetslocationI get an
> >> error.
> >> Please help.
> >> cd myrails-app
> >> ruby script/plugin install git://github.com/paolodona/rails-widgets.git
> >> rake widgets:setup
>
> >> following is the error
> >> 
> >> rake aborted!
> >> Don't know how to build task 'widgets:setup'
>
> >> (See full trace by running task with --trace)
>
> >> ---
> >> Then I tried with the following command
> >> rake widgets:setup --trace
>
> >> following is the error
> >> ---
> >> rake aborted!
> >> Don't know how to build task 'widgets:setup'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1704:in `[]'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2026:in
> >> `invoke_task'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `each'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in
> >> `standard_exception_handling'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1999:in `top_level'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1977:in `run'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in
> >> `standard_exception_handling'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1974:in `run'
> >> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/bin/rake:31
> >> c:/ruby/bin/rake:16:in `load'
> >> c:/ruby/bin/rake:16
>
> >> --
> >> View this message in
> >> context:http://www.nabble.com/install-error-for-rails-widgets-tp23048157p2304...
> >> Sent from the RubyOnRails Users mailing list archive at Nabble.com.
>
> --
> View this message in 
> context:http://www.nabble.com/install-error-for-rails-widgets-tp23048157p2305...
> Sent from the RubyOnRails Users mailing list archive at Nabble.com.
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[Rails] How to aggregate tags on child nodes?

[Raymond]

Let's say I have a Recipe model, and it is a parent of the Review
model. Reviews are entered by users of the system, with one or more
tags using the acts_as_taggable_on_steroids plugin (for instance).
What I'm interested in is how to show *all* tags for a particular
Recipe - meaning all tags applied to every child Review of that
Recipe.

For an example of what I'm talking about, look at this page from this
fine website:
http://97bottles.com/breweries/us/ca/santa-rosa/russian-river-brewing-company/blind-pig-ipa/

They are showing the most popular tags from all Reviews on a
particular Beer. I'm trying to figure out how to do that.

But I have no idea where to start, since the tagging is such a wily
concept to me. Any suggestions?
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[Rails] Re: Spreadsheet -avoid reading and writing from file how?

[Michael Guterl]

Sijo Kg wrote:
> Hi
>I am using http://spreadsheet.rubyforge.org/ in my application..Usage
> like
> 
> book = Spreadsheet::Workbook.new
> 
> book.write "#{RAILS_ROOT}/public/uploads/excel-file.xls"
> render :file => "#{RAILS_ROOT}/public/uploads/excel-file.xls"
> headers['Content-Type'] = "application/vnd.ms-excel"
> headers['Content-Disposition'] = "attachment; filename=excel-file.xls"
> headers['Cache-Control'] = ''
> 
>In the above i am writing to a file in a location and then read.
> My question is is there any method so that writing to a file can be
> avoided ..Because if there are some 100 requests the file will be
> overwritten(Am I right?) or if give seperate names for the files the
> upload folder will grow..So is there alternative and i can read the same
> content directly
> 

I didn't test this code, but looking at the api it looks like 
Workbook#write will take an IO stream.

require 'stringio'
require 'spreadsheet'

book = Spreadsheet::Workbook.new
blob = StringIO.new("")
book.write blob

send_data blob

Be sure to checkout the link below on send_data, it will allow you to 
transfer the stream of data without writing it to disk first.

http://api.rubyonrails.org/classes/ActionController/Streaming.html#M000402

Michael Guterl
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[Rails] Re: :has_many best practice search order

[Phlip]

Richard Schneeman wrote:
> I have a model_one that :has_many model_two-s, I would like to find the
> ten model_one's that have the most model_two's. What is the best way to
> do this?

Something like this?

Model_One.find(:all, :limit => 10, :joins => :model_two,
 :order => "count(model_twos.model_one_id) desc",
 :group => "model_ones.id")

I could do it in raw SQL, but I don't know the exact match. Fred Cheung or 
someone will correct me if I got it wrong!

The :joins is so you don't eager-load the models and interfere with the group 
concept, I suspect. The group is so you are allowed to count within each group.


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[Rails] Re: Passenger caching in development mode, wtf?

[Petr Janda]

Ok i resolved it, after hours of trying to figure it out, i noticed that 
the cause is having config.threadsafe! enabled in development mode. For 
some reason it causes caching to get enabled. This option should be 
documented better.

Petr
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[Rails] Re: Rails 2.3

[Michael Guterl]

Binh Ly wrote:
> Hello,
> 
> I've been looking on the Internet for how to use libxml within Rails.
> What I'm seeing is a little confusing.  If you install the libxml gem,
> will Rails automatically use that because its installed or do you have
> to explicitly set libxml to be the default after you've installed it?
> 
> This posting
> 
> http://www.coffeepowered.net/2009/03/16/things-to-do-when-upgrading-to-rails-23/
> 
> Says to set this in the environment file.
> 
>1.
>   ActiveSupport::XmlMini.backend = 'LibXML'
> 
> But when I do that my app crashes.  Anyone have any experience with
> this?
> 
If you could provide the entire backtrace, it would be much easier to 
diagnose.

Michael Guterl
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[Rails] :has_many best practice search order

[Richard Schneeman]

I have a model_one that :has_many model_two-s, I would like to find the
ten model_one's that have the most model_two's. What is the best way to
do this?

Model_One.find(:all, :limit => 10, :include => :model_two, :order
=>"themost of model_two desc")

or inorder for me to do this effeciently (I have thousands of
model_two-s) would i need to add a column to model_one, to keep track of
the number of model_two-s that model_one owns. Or is there some index i
can use? What is the best practice in this situation?
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[Rails] Silence logging altogether for certain actions?

[Nate Wiger]

Hi, I am looking for a way to silence logging altogether for certain
actions.  Our app talks to other servers and session components, and
our logs get filled up with this nonsense, even in Production mode.  I
want to completely silence all the automatic logging by Rails of the
basic request parts: method, params, etc.

I've seen logger.silence, but that doesn't appear to get rid of the
basic request chatter.  Any ideas?

Processing ServersController#register to xml (for 127.0.0.1 at
2009-04-15 20:52:17) [POST]
  Parameters: {"server"=>{"uname_node_name"=>"domU",
"server_type"=>"FLS", "management_port"=>"11054",
"service_address"=>"1.2.3.4", "uname_version"=>"#2 SMP Tue Feb 19
10:51:53 EST 2008", "service_port"=>"10054",
"management_address"=>"1.2.3.4", "uname_sysname"=>"Linux",
"max_clients"=>"2000", "current_clients"=>"2",
"instance_uuid"=>"5b7a3804", "server_version"=>"2.1.1/edge (r
2009-04-01 11:13:21) [i686-linux]", "uname_domain_name"=>"(none)",
"uname_release"=>"2.6.18-xenU-ec2-v1.0", "uname_machine"=>"i686"},
"server_stats"=>{"cpu_sys"=>"0.00", "cpu_nice"=>"0.00",
"cpu_idle"=>"0.00", "cpu_user"=>"0.00"}}
Rendering servers/register
Completed in 79ms (View: 1, DB: 4) | 200 OK [https://
ec2.compute-1.amazonaws.com/servers/register.xml]


Processing SessionsController#ping to xml (for 127.0.0.1 at 2009-04-15
20:52:39) [POST]
Completed in 16ms (View: 0, DB: 2) | 200 OK [https://
ec2.compute-1.amazonaws.com/session/ping.xml]


Processing SessionsController#ping to xml (for 127.0.0.1 at 2009-04-15
20:52:41) [POST]
Completed in 6ms (View: 0, DB: 2) | 200 OK [https://
ec2.compute-1.amazonaws.com/session/ping.xml]


Processing ServersController#register to xml (for 127.0.0.1 at
2009-04-15 20:52:47) [POST]
  Parameters: {"server"=>{"uname_node_name"=>"domU",
"server_type"=>"FLS", "management_port"=>"11054",
"service_address"=>"1.2.3.4", "uname_version"=>"#2 SMP Tue Feb 19
10:51:53 EST 2008", "service_port"=>"10054",
"management_address"=>"1.2.3.4", "uname_sysname"=>"Linux",
"max_clients"=>"2000", "current_clients"=>"2",
"instance_uuid"=>"5b7a3804", "server_version"=>"2.1.1/edge (r
2009-04-01 11:13:21) [i686-linux]", "uname_domain_name"=>"(none)",
"uname_release"=>"2.6.18-xenU-ec2-v1.0", "uname_machine"=>"i686"},
"server_stats"=>{"cpu_sys"=>"0.00", "cpu_nice"=>"0.00",
"cpu_idle"=>"0.00", "cpu_user"=>"0.00"}}
Rendering servers/register
Completed in 38ms (View: 1, DB: 24) | 200 OK [https://
ec2.compute-1.amazonaws.com/servers/register.xml]


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[Rails] Re: ActiveRecord Comparison Bug?

[Moo]

Hi Fred,

Thank you for the response! What you said made sense. thanks for the
explanation.

However, looking at the last criteria of the == implementation, we can
see why something like what i mentioned would fail:

let's say i have an 2 AR objects:
> old = Something.find(1)
=> #

then i create a new object:
> new = Something.new
=> #
> new.id = 1 # something like this is possible, how or why is another story...
> new
=> #

now do:
> new == old
=> true
> old == new
=> false

== method should be commutative, right?

appreciate any comments!
-Moo

On Apr 10, 10:52 am, Frederick Cheung 
wrote:
> On Apr 10, 5:50 pm, Moo  wrote:> Anyone has any thoughts 
> on this please?
>
> Basically the rationale is that == should mean 'do these objects
> correspond to the same database row ?'
>
> The reason why unsaved records are special cased is that two unsaved
> record would have equal id (nil in both cases) but if you saved them
> you would end up with 2 distinct rows in your database.
>
> I'm not sure why you're getting  new ==old not being the same as old
> == new. They should both be false (and are on my machine)
>
> Fred
>
> > On Apr 8, 5:29 pm, Moo  wrote:
>
> > > Hi Everyone,
>
> > > I'm running into a problem with theActiveRecord::Base "==" method
> > > defined here (it's 2.3.2, but it looks the same in older versions
> > > too):
>
> > >       # File rails-2.3.2/activerecord/lib/active_record/base.rb, line
> > > 2816
> > > 2816:       def ==(comparison_object)
> > > 2817:         comparison_object.equal?(self) ||
> > > 2818:           (comparison_object.instance_of?(self.class) &&
> > > 2819:             comparison_object.id == id &&
> > > 2820:             !comparison_object.new_record?)
> > > 2821:       end
>
> > > Because of the last criteria (!comparison_object.new_record?),
> > > something like this happens... say i have a new record and an existing
> > > record (different objects) and compare them:
>
> > > > new == old
> > > => true
> > > > old == new
>
> > > => false
>
> > > If this is intentional, can someone please explain why this is?
>
> > > Also what is the rational of only comparing the ID and not the all the
> > > values too and why does it matter if it's a new record or not?
>
> > > Thank you!
> > > -Moo
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[Rails] online rails music Application

[GabrielG1976]

Online Rails App that converts text into musical compositions thought
the communtiy might be interested in this application

http://www.literature2music.com/
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[Rails] Re: Using module methods in Rake task& model?

[Mario Gr]

I was a little off, but still haven't quite figured it out.  I currently 
have:

> /lib/module/order_process.rb
> module order_process
>   def process_order(id)
>  #do stuff
>   end
> 
> 
> /lib/tasks/ordering.rake
> 
> include 'order_process.rb'
> namespace :send_report do
>   task :order => :environment do
>  process_order(id)
>   end
> end
> 
> /app/models/segment.rb
> class Segment < ActiveRecord::Base
>   include 'report_csv_process.rb'
> 
>bla bla
> 
> end


I tried removing the single quotes, without luck
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[Rails] Re: Model Accessor Does Not Work Until After Reload?

[thadeous.m...@gmail.com]

This was due to a conflict with the Cj4r plugin not using appropriate
namespaces for its Product class.

On Apr 15, 2:33 pm, "thadeous.m...@gmail.com"
 wrote:
> Anyone have any insight into why this would be happening?
>
> Please see pastie:http://pastie.org/447786
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[Rails] uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)

[Marc Byrd]

I'm on debian etch w/ ruby1.8, activesupport-2.3.2, getting this on the
first line of code which is require 'active_support' :
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:55:
uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
from /var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support.rb:56
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:33:in
`gem_original_require'
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:33:in `require'

Note that this worked as expected on ubuntu (ibix, amd64).

Thanks,


m

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[Rails] Re: Rails and Sphinx

[Philip Hallstrom]

On Apr 15, 2009, at 3:59 PM, fausto wrote:

>
> Hi, i'm currently using ferret+acts_as_ferret for doing some searches
> in the db (not so big for now, just 40k~ records, but they will be
> near 2M+ soon). For now ferret it's working quite well, but sometimes
> i've indexes corrupted (i use it's drb server in production) and i've
> to rebuild all the indexes, so i've bad indexes, angry users and time
> spent to make it right.
> I'm looking at sphinx and it seems the answers to this problems, as it
> seems that it doesn't have this such of problems. But i've seen that
> i've to remake indexes everytime (/hour or less).. does it take a lot
> to rebuild them?

Look into the 'delta' options.  That way you have a main index and a  
delta index of recent changes.  Quicker to update and then nightly you  
can rebuild the whole thing.

> Is there anyone who use shpinx in production?

I have in the past yes, using the thinking sphinx plugin.

Worked great.

> Another big question about it is if it's possible to create custom
> indexes without having the records in the db, for example with ferret
> it's just a :fields => {:my_custom_field => {}} and then a method
> named my_custom_field which set what i need (for example a list of
> strings/integers, that i need to index, like category ids "4 8 15 16
> 23 42", and then doing a query searching with for example 15, or stuff
> like that (actually i've 8 fields, but soon they will be around 12-15)
> Is it possible something like this with sphinx?
> For ferret there is acts_as_ferret, for sphinx what do you suggest ?
> acts_as_sphinx or is there something else?
> thank you
> >


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[Rails] Rails and Sphinx

[fausto]

Hi, i'm currently using ferret+acts_as_ferret for doing some searches
in the db (not so big for now, just 40k~ records, but they will be
near 2M+ soon). For now ferret it's working quite well, but sometimes
i've indexes corrupted (i use it's drb server in production) and i've
to rebuild all the indexes, so i've bad indexes, angry users and time
spent to make it right.
I'm looking at sphinx and it seems the answers to this problems, as it
seems that it doesn't have this such of problems. But i've seen that
i've to remake indexes everytime (/hour or less).. does it take a lot
to rebuild them?
Is there anyone who use shpinx in production?
Another big question about it is if it's possible to create custom
indexes without having the records in the db, for example with ferret
it's just a :fields => {:my_custom_field => {}} and then a method
named my_custom_field which set what i need (for example a list of
strings/integers, that i need to index, like category ids "4 8 15 16
23 42", and then doing a query searching with for example 15, or stuff
like that (actually i've 8 fields, but soon they will be around 12-15)
Is it possible something like this with sphinx?
For ferret there is acts_as_ferret, for sphinx what do you suggest ?
acts_as_sphinx or is there something else?
thank you
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[Rails] Using module methods in Rake task& model?

[Mario Gr]

Hello,

I'm trying to use some methods I'm defining in a module in a model and
my rake task.  How can I do this?  Any help would be appreciated.

I've currently got the following, but my rake task can't access the
methods in my module. Instead, I get..

undefined local variable or method `report_csv_process' for
#


/lib/module/order_process
module order_process
  def process_order(id)
 #do stuff
  end


/lib/tasks/ordering.rake

include order_process
namespace :send_report do
  task :order => :environment do
 process_order(id)
  end
end

/app/models/segment.rb
class Segment < ActiveRecord::Base
  include report_csv_process

   bla bla

end
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[Rails] Rails 2.3

[Binh Ly]

Hello,

I've been looking on the Internet for how to use libxml within Rails.
What I'm seeing is a little confusing.  If you install the libxml gem,
will Rails automatically use that because its installed or do you have
to explicitly set libxml to be the default after you've installed it?

This posting

http://www.coffeepowered.net/2009/03/16/things-to-do-when-upgrading-to-rails-23/

Says to set this in the environment file.

   1.
  ActiveSupport::XmlMini.backend = 'LibXML'

But when I do that my app crashes.  Anyone have any experience with
this?

thanks,

binh
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[Rails] Re: Unknown Action error while updating record

[Brandon Olivares]

Hi,

I have a form using the following syntax, and it works just fine:

<% form_tag({:action => :process_form}, :id => 'contact') do %>

Brandon

> -Original Message-
> From: rubyonrails-talk@googlegroups.com [mailto:rubyonrails-
> t...@googlegroups.com] On Behalf Of josh.rach...@gmail.com
> Sent: Wednesday, April 15, 2009 4:12 PM
> To: Ruby on Rails: Talk
> Subject: [Rails] Unknown Action error while updating record
> 
> 
> I understand other people have had trouble using :action => 'update'
> with form_tag... but I haven't figured it out yet... here is my
> declaration of the form:
> 
> <% form_tag :action => 'update', :html => {:method => "put"} do %>
> 
> I tried just using <% form_tag :action => 'update' % do>, along with
> other structures... It just says UNKNOWN ACTION since it is trying to
> use the id as the action...
> 
> Can anyone help??
> 
> I would like to keep it as a form_tag though. Thanks in advance for
> the help
> 
> 

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[Rails] Getting Started with Rails - post_comment_url

[jlin...@gmail.com]

Hi,
Thanks for a wonderful Getting Started with Rails. I am up to the last
section and just added the comments part.
So while testing and looking over comments_controller.rb;
I see the reference to post_comment_url calll where is this defined.
Below is the message I am getting.
Thanks

ActionController::RoutingError (post_comment_url failed to generate
from {:post_id=>#, :action=>"show", :id=>#, :controller=>"comments"}, expected:
{:action=>"show", :controller=>"comments"}, diff: {:post_id=>#, :id=>#}):
  (eval):16:in `post_comment_url'
  app/controllers/comments_controller.rb:18:in `create'

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[Rails] Unknown Action error while updating record

[josh.rach...@gmail.com]

I understand other people have had trouble using :action => 'update'
with form_tag... but I haven't figured it out yet... here is my
declaration of the form:

<% form_tag :action => 'update', :html => {:method => "put"} do %>

I tried just using <% form_tag :action => 'update' % do>, along with
other structures... It just says UNKNOWN ACTION since it is trying to
use the id as the action...

Can anyone help??

I would like to keep it as a form_tag though. Thanks in advance for
the help

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[Rails] Model Accessor Does Not Work Until After Reload?

[thadeous.m...@gmail.com]

Anyone have any insight into why this would be happening?

Please see pastie: http://pastie.org/447786

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[Rails] Re: Controlling concurrency

[Frederick Cheung]

On Apr 15, 8:36 pm, steveluscher  wrote:
>
> @Fred: Row-level locks are out of the question, since I'm not
> interested in blocking updates to a given row, but the creation of
> rows that don't yet exist in the Orders table. That said, I found this

Actually that's not true (and mentioned in the blog post I linked).
You can lock the row corresponding to a given product, even if you are
not going to update that product, purely as a synchronization
mechanism (and in that sense it is similar to the named lock stuff).


Fred
> today – named locks in MySQL. It's a database-specific solution, but
> perhaps an easy one?


>
> http://gist.github.com/95977
>
> Named locks in 
> MySQL:http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#f...
> Shopify's locking 
> implementation:http://github.com/Shopify/locking/blob/835469ed48f4c2de95856fe2f221ea...
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[Rails] Re: Associations, named_scope, and "active" records

[Gavin]

Makes sense just to add conditions to the associations

so:
class Photo
  has_many :votes, :conditions => ['active = ? ', true]
end

I presume this is what you're planning on doing at the moment?

Less work and I doubt the scope would perform noticeably better (if at
all) ?

Why not try both methods and check the speed of each query?



On Apr 15, 9:58 pm, Bryan Corey 
wrote:
> Hello all,
>
> We are converting our application so that user-generated content such as
> votes, photos, users, comments, etc are all disabled instead of deleted.
> This serves us better as administrators of the site as well as fits into
> a UI redesign coming later that will include undo functionality. The
> question I have is would it be better to place the active=true condition
> part of all my associations I already have in place (little work), or do
> I strip my associations down to barebones and build named_scopes for my
> "active" state, and any other states? The problem here is I would need
> to append nearly all calls to photo.votes, photo.comments,
> project.photos, project.votes, etc with .active (much more work).
>
> Which is the better method in the long run? Thanks guys.
> --
> Posted viahttp://www.ruby-forum.com/.
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[Rails] Associations, named_scope, and "active" records

[Bryan Corey]

Hello all,

We are converting our application so that user-generated content such as
votes, photos, users, comments, etc are all disabled instead of deleted.
This serves us better as administrators of the site as well as fits into
a UI redesign coming later that will include undo functionality. The
question I have is would it be better to place the active=true condition
part of all my associations I already have in place (little work), or do
I strip my associations down to barebones and build named_scopes for my
"active" state, and any other states? The problem here is I would need
to append nearly all calls to photo.votes, photo.comments,
project.photos, project.votes, etc with .active (much more work).

Which is the better method in the long run? Thanks guys.
-- 
Posted via http://www.ruby-forum.com/.

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[Rails] Re: ROR performance for milions pageviews/month

[Sazima]

Tom,

Check Joyent's article on LinkedIn scaling (Scale Rails to 1 Billion
Pageviews):

http://www.joyent.com/a/scale-rails-to-1-billion-pageviews

Also, we're currently revamping a couple very large sites using rails,
so we're quite confident on its performance. (vc tá em SP?)

Cheers, Sazima

On Apr 14, 2:26 pm, Tom Lobato  wrote:
>   Hi all!
>
>   I`ll rewrite a 10 years old site, written in asp/mysql
> (www.motonline.com.br). Now it has one milion page views a month, and
> we can hope it grows after rewrite. Well, I know several ror sites,
> but have no idea about its access stats. I already use ror for smaller
> projects and only need to confirm if ror can satisfy the performance
> demands for this.
>   Can you comment about the ror performance for such a page view scale
> and/or point to some cases or statistics from existing sites?
>
>  Thank you,
>  Tom Lobato
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[Rails] Re: Complex forms: only one level of “ arrayn ess” is allowed?

[Marnen Laibow-Koser]

PJ wrote:
[...]
> The natural
> indexing should (I think) be:
> 
> "model_a[model_b_attributes][][model_c_attributes][][an_attribute]"
> 
> But it doesn't seem to work.
[...]

There is a bug in Rails at least up to 2.2.2 that you may be running 
into.  I reported it on this list around Christmas 2008.  If you search 
the archives for my name around that time, you will find the ensuing 
discussion and a patch that Fred submitted for the bug.  Good luck!

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
mar...@marnen.org
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[Rails] Re: Injecting Ruby code into a javascript file?

[Marnen Laibow-Koser]

Philip Hallstrom wrote:
[...]
> Or consider setting some initial JS objects or JSON strings that your
> JS methods can look at when doing their thing.

If you do it this way, the browser can cache the JS and not hammer your 
server.  I highly recommend this approach rather than dynamically 
generating JS.

Best,
--
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http://www.marnen.org
mar...@marnen.org
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[Rails] Best framework for graphs and charts

[Gu stav]

I have some data in a bunch of tables that I would like to display in a
set of graphs. I've been looking at the Google Visualization API, Ziya
and Fusioncharts - they all look nice but it would feel better to go
with something more Rubyesque ;)

So far I've looked at Gruff and Scruffy. Gruff seems to be the most
active of the two.

Any opinions?

Thanks!
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[Rails] Re: Injecting Ruby code into a javascript file?

[Philip Hallstrom]

> as far as I know it's possible to inject Ruby code into javascript  
> code
> if the javascript code is included in a view/page.
>
> But is this also possible when the javascript code is in a  
> separate .js
> file that is located in the folder "public/javascripts"?

No.  The files in public/javascripts never go through Rails.  You  
could always create a controller/view to generate JS files though and  
then treat them similarly.

Or consider setting some initial JS objects or JSON strings that your  
JS methods can look at when doing their thing.

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[Rails] Re: Controlling concurrency

[steveluscher]

@Fred: The information that only n more products exist will come from
(@product.order_limit - @product.orders.count) >= n. It's a bit more
complicated than that, because I plan to have optional per-
ProductVariant limits too, but let's leave it there for now.

@Fred & @Hassan: I don't really want to have "unsold" ProductVariants
hanging around in the database, because the availability of
ProductVariants is largely procedural. If the order_limit on the
Product as a whole was 20, the order_limit on ProductVariant A was 10,
and ProductVariant B had no order_limit, then I'd end up with a whole
lot of questions as to how many unsold ProductVariants to create of
each type, and which ones to destroy when others were sold. Bah, too
much mess!

@Charles: I like the idea of an OrderTaker global queue, but global
queue means worker process, and worker process means extra messy
infrastructure, right? I'm all for it, I'm just wondering if anyone
has a better mousetrap.

@Fred: Row-level locks are out of the question, since I'm not
interested in blocking updates to a given row, but the creation of
rows that don't yet exist in the Orders table. That said, I found this
today – named locks in MySQL. It's a database-specific solution, but
perhaps an easy one?

http://gist.github.com/95977

Named locks in MySQL: 
http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_get-lock
Shopify's locking implementation:
http://github.com/Shopify/locking/blob/835469ed48f4c2de95856fe2f221eaa624b267a2/lib/locking.rb
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[Rails] Injecting Ruby code into a javascript file?

[Tom Ha]

Hi,

as far as I know it's possible to inject Ruby code into javascript code
if the javascript code is included in a view/page.

But is this also possible when the javascript code is in a separate .js
file that is located in the folder "public/javascripts"?

Thanks for your help!
Tom
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[Rails] Generating a css file from ruby code

[Gavin]

Hi all!

I'm playing around with an app at the moment in which users can
specify their own style settings for the majority of the HTML on their
profile through selecting some form options. Alternatively they can
upload a stylesheet of thier own if they have CSS experience.

I thought of a couple of different way of doing this but the most
logical way seemed to be creating a seperate stylesheet for each user
in the model and calling this stylesheet when the page is rendered.

I've created a plugin which takes a ruby hash and creates a hunk of
text which is then written to a css file.

http://github.com/GavinM/css_writer/tree/master

I'm just curious as to whether anyone can think of a better way of
doing this?

Also - this is my first plugin.  I would welcome any feedback/
constructive criticism

thanks

-:)
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[Rails] Re: Return to previous page

[David Knorr]

On 15 Apr., 17:18, Juan Kinunt 
wrote:
> Is there a 'rails way' to allow easy navigation to the previous page or
> should we use parameters and 'ifs'?
> I'm talking about, for example, a 'Back' button that links to differente
> pages depending the previous page.

You can easily make a back button like this:

<%= button_to "Back", :back %>

button_to will pass the second argument (:back) on to url_for, and as
you can see in the documentation (http://api.rubyonrails.org/classes/
ActionView/Helpers/UrlHelper.html#M001564), :back will be translated
to request.env["HTTP_REFERER"] or javascript:history.back() if referer
is blank. That's it!

--
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David Knorr
http://twitter.com/rubyguy
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[Rails] Re: RSS Feed parsing problem

[David Knorr]

On 12 Apr., 22:02, Nick Hoyle 
wrote:
> Nick Hoyle wrote:
> > hi thanks for the reply, was much needed.
>
> > I knew what i was trying to do which was like you say call each of the
> > items in the array i just wasnt sure how to do it, and attempted a
> > similar type of loop but had no luck.
>
> > I will look into this and see if i can achieve what i want
>
> > Thanks alot
>
> > nick
>
> just another quick question
>
> how would i able to output each parsed feed from the array @feeds[] in a
> view?

You would do something like this:


  <%- @feeds.each do |feed| -%>
<%= feed.channel.title %>
  <%- end -%>


Voila, a list of feed titles. :)

--
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http://twitter.com/rubyguy
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[Rails] Re: Newbie Model Question

[Philip Hallstrom]

On Apr 15, 2009, at 10:09 AM, Nicktabs wrote:

>
> I'm building a shop in rails as a learning excercise. I've got to the
> last part when I'm sending out e-mail order confirmations. The e-mails
> contain a list of each line item the customer ordered, I also want to
> display the catgory name the customer ordered from.
>
> The database is setup: Category > Product > Line_item.
> So I want to navigate back from line_item > product > category so i
> can display the category name in the email however im not sure how I
> tell it to find the category name from the item.
>
> Be greatful for anyhelp.

@line_item.product.category.name

Assuming all the associations are setup correctly.

You can also set it up using :through so that you can just to  
@line_item.category.name

-philip

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[Rails] Newbie Model Question

[Nicktabs]

I'm building a shop in rails as a learning excercise. I've got to the
last part when I'm sending out e-mail order confirmations. The e-mails
contain a list of each line item the customer ordered, I also want to
display the catgory name the customer ordered from.

The database is setup: Category > Product > Line_item.
So I want to navigate back from line_item > product > category so i
can display the category name in the email however im not sure how I
tell it to find the category name from the item.

Be greatful for anyhelp.

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[Rails] Re: Revision: Background image contained in stylesheet

[Rob Blimploid]

Robby Russell wrote:
> On Wed, Apr 15, 2009 at 9:32 AM, Rob Blimploid <
> rails-mailing-l...@andreas-s.net> wrote:
> 
>> The following is the stylesheet code containing the reference to the
>> image.
>>
>> #navigation {
>>  width: 180px;
>>  height: 484px;
>>  background: #7da5a8 url(nav-bg.jpg) no-repeat;
>> }
>>
> 
> Your path needs to specify the full relative path.
> 
> url(/images/nav-bg.jpg)
> 
> Looks like you're missing 'images/'
> 
> 
>>
>> Rubio
>> --
>> Posted via http://www.ruby-forum.com/.

> --
> Robby Russell
> Chief Evangelist, Partner
> 
> PLANET ARGON, LLC
> design // development // hosting w/Ruby on Rails


Thanks for the reply .. I changed it to:  url(../images/nav-bg.jpg) and
it now works beautifully.  Thanks for taking the time to address this
problem !
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[Rails] hpricot bug?

[Christo Karlson]

I get an error in the hpricot-gem on Windows XP sp3. I have tested
different versions of it and combined them with different versions of
sequel (including the latest of both).

The error triggers on the line when I do: require ’hpricot’.

The line that causes the error in the hpricot-gem in the file
elements.rb (line 395) looks like this:

nth = proc { |num,i| self.position == num.to_i }

What is proc for kind of function? Maybe the gem or component that
defines proc is out of sync with hpricot ?

NOTE: I have the same code and gem versions running on debian linux
working fine, and it also worked nicely before on windows.

I run ruby 1.8.6 and installed it with the one-click installer for
Windows.

Best regards!
Kristofer, Sweden


ArgumentError in Admin portal srv propController#srv_prop_cmd
wrong number of arguments (0 for 1)
RAILS_ROOT: F:/srv/dreamgallery/content/v400

Application Trace | Framework Trace | Full Trace

f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot/elements.rb:395:in
`proc'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot/elements.rb:395
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in
`new_constants_in'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot/traverse.rb:1
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in
`new_constants_in'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot.rb:23
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in
`new_constants_in'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
app/models/db_helper.rb:1
app/models/exhibit_node.rb:132:in `updateexhibitnodes_internal'
app/models/exhibit_node.rb:119:in `updateexhibitnodes_with_params'
app/controllers/admin_portal_srv_prop_controller.rb:118:in
`srv_prop_cmd'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot/elements.rb:395:in
`proc'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot/elements.rb:395
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in
`new_constants_in'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot/traverse.rb:1
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in
`new_constants_in'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.164-x86-mswin32/lib/hpricot.rb:23
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`gem_original_require'
f:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in
`new_constants_in'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in
`require'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:382:in
`load_without_new_constant_marking'
f:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:382:in
`load_file'
f:/ruby/lib/ruby/gems/1.8/gems/

[Rails] Re: gem install mysql "checking for mysql_query() in -lmysqlclie

[Rob Redmon]

Rob Redmon wrote:
> Roger Pack wrote:
>>> /home/iono/packages/gems/gems/mysql-2.7 for inspection.
>> 
>> Might give some clues.
> 
> 
> Duh.
> 
> This is what worked:
> cd /home/iono/packages/gems/gems/mysql-2.7
> ruby extconf.rb --with-mysql-config=/usr/bin/mysql_config
> 
> Thanks for such speedy help!!
> 
> R

For completeness, I then did (as per README.html):
make
make install

Testing ActiveRecord through mysql now seems to work well.

R
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[Rails] Re: gem install mysql "checking for mysql_query() in -lmysqlclie

[Rob Redmon]

Roger Pack wrote:
>> /home/iono/packages/gems/gems/mysql-2.7 for inspection.
> 
> Might give some clues.


Duh.

This is what worked:
cd /home/iono/packages/gems/gems/mysql-2.7
ruby extconf.rb --with-mysql-config=/usr/bin/mysql_config

Thanks for such speedy help!!

R
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[Rails] Re: Complex forms: only one level of “arra yness” is allowed?

[Frederick Cheung]

On Apr 15, 5:09 pm, PJ  wrote:
> Thanks Fred.
>
> Considering there is a bit of "wizardry" that needs to be done and
> that Rails doesn't include helpers to do this simply, does it mean it
> is not recommended to build such complex forms?
>
> I am not very experienced with Rails, but I love the fact it is very
> "clean" and I feel a bit cautious having to generate keys manually.
>
There is the nested forms stuff in rails 2.3 (unfortunately not yet
documented in the guide).

Fred

> PJ
>
> On Apr 15, 9:05 am, Frederick Cheung 
> wrote:
>
> > On Apr 15, 1:07 am, PJ  wrote:
>
> > > "model_a[model_b_attributes][][model_c_attributes][][an_attribute]"
>
> > > But it doesn't seem to work. I read 
> > > herehttp://guides.rubyonrails.org/form_helpers.html
> > > that "only one level of “arrayness” is allowed" and that I should use
> > > hashes instead, but I am not quite sure I understand how to do it.
>
> > > Do you have any idea?
>
> > What that comment is saying is that you can replace an array eg
> > [a,b,c] with a hash eg {1 => a, 2=> b, 3=>c}
> > Generating those keys is up to your client side code, approaches
> > included using a number you increment or going for some unique thing
> > you generate on the spot (eg time in milliseconds concatenated with a
> > random number) so that you don't have to keep track of how many fields
> > and what not you have created clientside.
>
> > Fred
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[Rails] Re: Revision: Background image contained in stylesheet

[Robby Russell]

On Wed, Apr 15, 2009 at 9:32 AM, Rob Blimploid <
rails-mailing-l...@andreas-s.net> wrote:

>
> I realized that I should have included a bit more information in my
> previous post, so here's the revision.
>
> application.html.erb is correctly finding the stylesheet for my project
> via <%= stylesheet_link_tag 'style1' %>.  My webpages reflect the
> styling properly with a few exceptions .. the most notable being some
> .jpg images defined for background do not display at all.  I have those
> images in public/images.
>
> The following is the stylesheet code containing the reference to the
> image.
>
> #navigation {
>  width: 180px;
>  height: 484px;
>  background: #7da5a8 url(nav-bg.jpg) no-repeat;
> }
>

Your path needs to specify the full relative path.

url(/images/nav-bg.jpg)

Looks like you're missing 'images/'


>
> I tried the absolute path to the image above per: background: #7da5a8
> url(C:\InstantRails\rails_apps\getdowninthevalley\public\images\nav-bg.jpg)
> no-repeat; but that didn't work either
>
> This worked fine until I retrofitted the webpages into the Rails
> framework (which I really like, but which I'm relative new to).
>
> If anyone knows the solution, I would really appreciate it ... thanks in
> advance!
>
> Rubio
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>


-- 
Robby Russell
Chief Evangelist, Partner

PLANET ARGON, LLC
design // development // hosting w/Ruby on Rails

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[Rails] Re: gem install mysql "checking for mysql_query() in -lmysqlclie

[maven22]

I've had this issue before - I'm pretty sure I ended up solving it by
installing the mysql-devel package first.



On Apr 15, 10:33 am, Rob Redmon 
wrote:
> I've seen this before but I've forgotten how to solve it.
>
> It appears that I have the mysql client libraries installed:
>
> i...@retro[08:25:55][~/] locate libmysqlclient.so
>
> /usr/lib/mysql3/mysql/libmysqlclient.so
>
> /usr/lib/mysql3/mysql/libmysqlclient.so.10
>
> /usr/lib/mysql3/mysql/libmysqlclient.so.10.0.0
>
> /usr/lib/mysql/libmysqlclient.so
>
> /usr/lib/mysql/libmysqlclient.so.14
>
> /usr/lib/mysql/libmysqlclient.so.10
>
> /usr/lib/mysql/libmysqlclient.so.10.0.0
>
> /usr/lib/mysql/libmysqlclient.so.14.0.0
>
> My LD_LIBRARY_PATH is:
>
> export
> LD_LIBRARY_PATH=/usr/lib/oracle/10.2.0.4/client64/lib:/usr/lib/mysql/
>
> OS:
>
> Linux XYZ 2.6.18-128.1.6.el5 #1 SMP Tue Mar 24 12:05:57 EDT 2009 x86_64
> x86_64 x86_64 GNU/Linux
>
> What gives?
>
> Full "gem install mysql" output follows:
>
> ERROR:  Error installing mysql:
>
>         ERROR: Failed to build gem native extension.
>
> /home/iono/packages/ruby-1.8.7/bin/ruby extconf.rb install mysql
>
> checking for mysql_query() in -lmysqlclient... no
>
> checking for main() in -lm... yes
>
> checking for mysql_query() in -lmysqlclient... no
>
> checking for main() in -lz... yes
>
> checking for mysql_query() in -lmysqlclient... no
>
> checking for main() in -lsocket... no
>
> checking for mysql_query() in -lmysqlclient... no
>
> checking for main() in -lnsl... yes
>
> checking for mysql_query() in -lmysqlclient... no
>
> *** extconf.rb failed ***
>
> Could not create Makefile due to some reason, probably lack of
>
> necessary libraries and/or headers.  Check the mkmf.log file for more
>
> details.  You may need configuration options.
>
> Provided configuration options:
>
>         --with-opt-dir
>
>         --without-opt-dir
>
>         --with-opt-include
>
>         --without-opt-include=${opt-dir}/include
>
>         --with-opt-lib
>
>         --without-opt-lib=${opt-dir}/lib
>
>         --with-make-prog
>
>         --without-make-prog
>
>         --srcdir=.
>
>         --curdir
>
>         --ruby=/home/iono/packages/ruby-1.8.7/bin/ruby
>
>         --with-mysql-config
>
>         --without-mysql-config
>
>         --with-mysql-dir
>
>         --without-mysql-dir
>
>         --with-mysql-include
>
>         --without-mysql-include=${mysql-dir}/include
>
>         --with-mysql-lib
>
>         --without-mysql-lib=${mysql-dir}/lib
>
>         --with-mysqlclientlib
>
>         --without-mysqlclientlib
>
>         --with-mlib
>
>         --without-mlib
>
>         --with-mysqlclientlib
>
>         --without-mysqlclientlib
>
>         --with-zlib
>
>         --without-zlib
>
>         --with-mysqlclientlib
>
>         --without-mysqlclientlib
>
>         --with-socketlib
>
>         --without-socketlib
>
>         --with-mysqlclientlib
>
>         --without-mysqlclientlib
>
>         --with-nsllib
>
>         --without-nsllib
>
>         --with-mysqlclientlib
>
>         --without-mysqlclientlib
>
> Gem files will remain installed in
> /home/iono/packages/gems/gems/mysql-2.7 for inspection.
> --
> Posted viahttp://www.ruby-forum.com/.

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[Rails] Revision: Background image contained in stylesheet

[Rob Blimploid]

I realized that I should have included a bit more information in my
previous post, so here's the revision.

application.html.erb is correctly finding the stylesheet for my project
via <%= stylesheet_link_tag 'style1' %>.  My webpages reflect the
styling properly with a few exceptions .. the most notable being some
.jpg images defined for background do not display at all.  I have those
images in public/images.

The following is the stylesheet code containing the reference to the
image.

#navigation {
  width: 180px;
  height: 484px;
  background: #7da5a8 url(nav-bg.jpg) no-repeat;
}

I tried the absolute path to the image above per: background: #7da5a8
url(C:\InstantRails\rails_apps\getdowninthevalley\public\images\nav-bg.jpg)
no-repeat; but that didn't work either

This worked fine until I retrofitted the webpages into the Rails
framework (which I really like, but which I'm relative new to).

If anyone knows the solution, I would really appreciate it ... thanks in
advance!

Rubio
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[Rails] Re: RSS feed consumption.

[James Byrne]

I thought that I would first try out activeresource manually and 
discover how things are done. I have a valid RSS feed from the Bank of 
Canada that I wish to pull from. I have defined my class as:

class ForexCASource < ActiveResource::Base
  self.site = 'http://www.bankofcanada.ca/rss/fx/noon/fx-noon-all.xml'
end

Inside the console I try to do this:

>> forex = ForexCASource.find
or
>> forex = ForexCASource.find(:all)

and I receive a 404 error in both cases.

I can reach the site url given in the resource class from a Firefox 
instance running on the same host using cut and paste so the url in the 
site assignment is valid.

What am I missing?


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[Rails] Re: a client and a contractor are both users, share some attrib but not others, how to implement as users

[Chris Bird]

Contnuing your theme of each column being its own table - there is
some sort of merit in thinking that way - at least initially. has
ittle to do with rails of course, but just as a general framework of
thought.

If you think conceptually about things that are hard to to in
relational databases and things that are easy to do. It is, for
example, much harder to add a new column than a new row to an
exisiting database.

So, if you have a very abstracted design like this..

Entity (entity id, entity name)
Rowdata (rowdataid, domainid,entityid, colname,colvalue)
Domain (domainid, domain_data_type)

Then you could simply add new rows into the domain table and new rows
into the Rowdata table every time you want to extend the schema.

This of course is far too simplistic an approach - I have mixed the
schema up with the values, so it is hopelessly unnormalized), but it
sort of sets the mind off onto asking the questions about when we need
ultimate flexibility vs when something just needs to work simply and
quickly. The answers are never as simple as you think!

However, I would also say, don't dwell on the "what might possible
ne..." but implement what is most reasonable. Of course it is
judgement, but when developing we always have to use our judgement.
When we have made a design decision about such a thorny issue,
document it so you don't have to revisit the reasons. You may have to
revisit the decision, so it would be handy to know why the decision
was made the way it was.

I do have lots of rules (of thumb and otherwise) around this stuff -
but that's how I make my living!

http://businessanditarchitecture.blogspot.com

C

On Apr 14, 9:00 pm, Nik  wrote:
> Thank you vERY much, Chris! -- One often has moments where he/she
> notices something that may or may not be a real worry, but is too
> doubtful to speak of it. I have each of your described considerations
> pulsing through my head each time I think of the future of how these
> models will be in case of modification or deletion, but it was too
> vague as I had no substance to fill even a hypothetical example. But
> your spelling them out certainly relieved me a little.
>
> Having been thinking of these (potential) problems, it compelled me to
> think whether there's a kind of tutorial I can read up on some rules
> of thumb of deciding if table or no table and so on. I thought, a few
> days, ago, that in the worst case, if I made each column its own
> table, a Phone Model, a Gender Model, an Areacode Model, etc,
> basically every thing would have its own model, though unrealistically
> complex, it'd work ( sort of conveying that the more orthogonal bases
> you have, the better; in Linear Algebra). So building up a network of
> tables each holding exactly one column, I was thinking that, some
> empirical/theory-based rules for combining these hypothetical single
> column tables. And your Socratic method (I hope I am using this phrase
> right) isn't bad, at all.
>
> I will discuss with my supervisor for possible scenarios that call for
> minor/major table alterations, then I will begin to ask these
> questions myself :)
>
> Thanks again!
> Thank you, everyone!
>
> On Apr 14, 11:16 am, Chris Bird  wrote:
>
>
>
> > This is a specific case of a more general problem - how to manage
> > inheritance in these kinds of models. There are several things to
> > think about here. However they break down fairly easily. I'll use your
> > specific example, but some of the observations might not make a whole
> > lot of sense. So I will pose some questions and then give some guiding
> > thinking. This will not be RAILS specific thinking, but bringing
> > experience from enterprise class systems where we have things like
> > this all the time. You can generalize the thinking questioning when
> > the structures are even deeper.
>
> > Which attributes are common between Clients/Contractors?
> > - If there are a lot of attributes in common you might get away with a
> > single table, and a type field in the table.
>
> > Are there relationships identified that both Clients and Contractors
> > can have?
> > - If for example you had a security tag table and it needed to have
> > the associated "person", and it doesn't matter if the person is a
> > client or a contractor, then it might be worth managing that
> > relationship via a separate table (a Person table).
>
> > Do you expect to add new kinds of things?
> > - Are Clients and Contractors the only types of Persons? Will you need
> > to add something else in the future - e.g. Overseas Contractor which
> > is like a Contractor but has a bunch more fields, its own processes,
> > screens, etc. If so you may want to break into multiple tables.
>
> > Do you expect to have a role concept that cuts across Clients/
> > Contractors?
> > - Similar to relationships above, but let's imagine you also have
> > roles like administrator, user, ... If those roles are independent of
> > the Client/Contractor status, then again you might want separat

[Rails] Re: Complex forms: only one level of “arra yness” is allowed?

[PJ]

Thanks Fred.

Considering there is a bit of "wizardry" that needs to be done and
that Rails doesn't include helpers to do this simply, does it mean it
is not recommended to build such complex forms?

I am not very experienced with Rails, but I love the fact it is very
"clean" and I feel a bit cautious having to generate keys manually.

PJ

On Apr 15, 9:05 am, Frederick Cheung 
wrote:
> On Apr 15, 1:07 am, PJ  wrote:
>
>
>
> > "model_a[model_b_attributes][][model_c_attributes][][an_attribute]"
>
> > But it doesn't seem to work. I read 
> > herehttp://guides.rubyonrails.org/form_helpers.html
> > that "only one level of “arrayness” is allowed" and that I should use
> > hashes instead, but I am not quite sure I understand how to do it.
>
> > Do you have any idea?
>
> What that comment is saying is that you can replace an array eg
> [a,b,c] with a hash eg {1 => a, 2=> b, 3=>c}
> Generating those keys is up to your client side code, approaches
> included using a number you increment or going for some unique thing
> you generate on the spot (eg time in milliseconds concatenated with a
> random number) so that you don't have to keep track of how many fields
> and what not you have created clientside.
>
> Fred
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[Rails] Re: external programs

[BenH]

Excuse the self reply - something that comes in handy is to capture
the exit status of the external application. To do this use
$?.exitstatus

%x{echo "Hello World"}
puts $?.exitstatus

On Apr 15, 8:15 am, BenH  wrote:
> you may try something along this line:
>
> timeout(10) do
>   %x{sleep 12}
> end
>
> rescue Timeout::Error
>   # Do something to handle the time out.
>   puts "The sleep command timed out"
> end
>
> Hope that gets you going in a good direction.
> BenH
>
> On Apr 15, 7:41 am, Svetlana Vt 
> wrote:
>
> > how i can follow to execute external programs: define, that they don't
> > hung with Kernel method system or another? may be use timeout?
>
> > excuse me for my bad english :)
> > --
> > Posted viahttp://www.ruby-forum.com/.
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[Rails] Re: HTTP Digest Authentication PUT DELETE problem. Bug ?

[Steve Madsen]

This is a bug in Rails 2.3.2. I've created a Lighthouse ticket for it
(#2490) and created a patch that fixes it. It will probably help get
the fix into a release if others acknowledge the problem and can
verify my patch fixes it for them.

https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/2490-http-digest-auth-uses-wrong-request-method-for-put-delete#ticket-2490-1

On Mar 27, 4:51 pm, Scott Ahten  wrote:
> I've run into the same problem. GET and POST work find, but PUT and
> DELETE repeatedly asks for login information and never succeeds.
>
> On Mar 19, 6:47 pm, greq  wrote:
>
>
>
> > Hi all,
>
> > I've got a problem with HTTP Digest Authentication after upgrading
> > Rails to 2.3.2.
> > It seems that it is broken for PUT and DELETE requests method.

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[Rails] [ANN] Rails plugin to improve log format

[Paul Dowman]

I have created a Rails plugin to improve the log file format. (It also
adds an optional “Exception” parameter to the warn() and error()
methods to print a stack trace automatically.)

It's available here:
http://github.com/pauldowman/better_logging


___Improved log format___

It adds severity level (with colour, if
ActiveRecord::Base.colorize_logging == true), hostname and process ID
to each log line, and it and adds warn() and exception() methods that
take an exception as an argument and print the stack trace.

For example, here’s how the default format looks:

Session ID: 7eeb00aa62b395698a28bf033e56b7c5
Parameters: {"action"=>"show", "id"=>"1", "controller"=>"people"}
User Load (0.4ms)   SELECT * FROM `users` WHERE (id = '1') LIMIT 1
User Columns (2.1ms)   SHOW FIELDS FROM `users`
Rendering template within layouts/application
Rendering people/show
Rendered layouts/_head (3.1ms)
Rendered layouts/_navigation (2.2ms)
Adding Cache-Control header
Completed in 164ms (View: 116, DB: 21) | 200 OK [http://localhost/
people/1]

Here’s how the same thing would look with the better_logging plugin
installed in development mode (it looks best with a proportional
font). Note that the severity (INFO, WARN, ERROR, etc), is printed in
colour (if colour is enabled for the log, which it is by default in
development mode).

INFO   Session ID: 7eeb00aa62b395698a28bf033e56b7c5
INFO   Parameters: {"action"=>"show", "id"=>"1",
"controller"=>"people"}
DEBUG  User Load (0.4ms)   SELECT * FROM `users` WHERE (id = '1')
LIMIT 1
DEBUG  User Columns (2.1ms)   SHOW FIELDS FROM `users`
INFO   Rendering template within layouts/application
INFO   Rendering people/show
DEBUG  Rendered layouts/_head (3.1ms)
DEBUG  Rendered layouts/_navigation (2.2ms)
INFO   Adding Cache-Control header
INFO   Completed in 164ms (View: 116, DB: 21) | 200 OK [http://
localhost/people/1]

And here’s how it would look with the better_logging plugin installed
in production mode, on a host named “akash”, with process id 27471:

akash.27471   13:27:04  INFO   Session ID:
7eeb00aa62b395698a28bf033e56b7c5
akash.27471   13:27:04  INFO   Parameters: {"action"=>"show",
"id"=>"1", "controller"=>"people"}
akash.27471   13:27:04  INFO   Rendering template within layouts/
application
akash.27471   13:27:04  INFO   Rendering people/show
akash.27471   13:27:04  INFO   Adding Cache-Control header
akash.27471   13:27:04  INFO   Completed in 164ms (View: 116, DB: 21)
| 200 OK [http://localhost/people/1]

And here’s how it would look in production mode on a host with a long
name. This host name is “myreallybigserver-7.mydomain.com”.

igserver-7.27471   13:27:04  INFO   Session ID:
7eeb00aa62b395698a28bf033e56b7c5
igserver-7.27471   13:27:04  INFO   Parameters: {"action"=>"show",
"id"=>"1", "controller"=>"people"}
igserver-7.27471   13:27:04  INFO   Rendering template within layouts/
application
igserver-7.27471   13:27:04  INFO   Rendering people/show
igserver-7.27471   13:27:04  INFO   Adding Cache-Control header
igserver-7.27471   13:27:04  INFO   Completed in 164ms (View: 116, DB:
21) | 200 OK [http://localhost/people/1]

Note that the hostname & process ID is added to the beginning of each
line of a multi-line log statement. So even if you call logger.error()
with a string that has newlines in it, the host & process ID will be
added to each line, not only the first.

This is so that you can filter your log with a regular expression
like /^igserver-7\.27471/ and not miss lines.
Improved warn() and error() methods

The warn() and error() methods now allow an Exception object to be
given as an optional second parameter. If the exception is given, then
the stack trace will be automatically logged.

For example:

  begin
# do something that raises an exception
  rescue Exception => e
log.error "Oops", e
  end

The above code will log “Oops”, and then log the stack trace.


___Why?___

Adding severity:
All lines printed to the log have a “severity” level, this can be
“DEBUG”, “WARN”, “ERROR”, etc. Normally this isn’t included in the log
output, so it’s impossible to search a log file for warnings or
errors, or filter based on severity, and it’s just a useful thing to
see.
Adding hostname and process ID

Normally, when not in development mode, a Rails app consists of more
than one Rails process responding to requests at the same time. Those
processes may be printing lines to the log at the same time, and it’s
hard to know which process printed a certain line.

Also, it’s common to have multiple servers working in parallel, and a
user’s session might involve requests to multiple servers. If the log
files are combined it’s useful to know which process on which server
printed a given line.

This makes it possible to filter a Rails log to show output from one
process only, and to combine the log files from multiple servers.

The hostname is truncated (by default to 10 characters but this is
configurable). The end of the hostname is printed, rather than the
beginning, because o

[Rails] RoR developer req in DC area with my direct client

[Vikas S]

Hi,
I am Sr. Resource Manager at Marlabs and we are seeking a RoR
developer for our direct client in DC area. Pl advise if you are
interested.
The req is as follows: -
Sr. Developer - Ruby on Rails

Job Description
 Seeking strong Sr. Developer profiles for a client opp. In Washington
D.C. area (Virginia). Below are the basic requirements: -min 5 years
OOD -CSS + html experience - Strong knowledge of JavaScript and
comfortable with Ajax - min 2 years ROR experience - unit test
experience Knowledge of legal technologies domain is a plus (EDRM,
ESI, etc.) Let me know if any additional info is required

Salary: - DOE

Pl contact me at vi...@marlabs.com, if you are interested.
regards,
Vikas

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[Rails] Re: Backspace in strings and patterns

[Roger Pack]

Jeffrey L. Taylor wrote:
> Interesting.  Not what I expected.  This is Ruby 1.8.6.

ask ruby talk or core?
-=r
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[Rails] Re: Backspace in strings and patterns

[Frederick Cheung]

On Apr 15, 4:13 pm, "Jeffrey L. Taylor"  wrote:
> Interesting.  Not what I expected.  This is Ruby 1.8.6.
>

Inside a rexexp, \b is not a backspace (except in a character class).
it means word boundary.

Fred
> > irb
>
> irb(main):001:0> str = "abx\bc"
> => "abx\bc"
> irb(main):002:0> str.length
> => 5
> irb(main):003:0> s = str.sub(/.\b/, '')
> => "ab\bc"
> irb(main):004:0> s.length
> => 4
> irb(main):005:0> s = str.sub(/.\x08/, '')
> => "abc"
> irb(main):006:0> s.length
> => 3
> irb(main):007:0>
>
> Backspace character representation in ASCII, UTF-8, etc. is 8.
>
> Jeffrey
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[Rails] Re: gem install mysql "checking for mysql_query() in -lmysqlclie

[Roger Pack]

> /home/iono/packages/gems/gems/mysql-2.7 for inspection.

Might give some clues.
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[Rails] Return to previous page

[Juan Kinunt]

Is there a 'rails way' to allow easy navigation to the previous page or
should we use parameters and 'ifs'?
I'm talking about, for example, a 'Back' button that links to differente
pages depending the previous page.
Thanks.
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[Rails] Re: Controlling concurrency

[Frederick Cheung]

On Apr 15, 3:28 pm, Charles Johnson  wrote:
> If you positively cannot have overbooking (oops, airline talk) over-selling,
> then all your orders have to either lock a table (using the database to
> enforce serialization)

I don't think things have to be quite so drastic, eg a row level lock
is almost certainly enough. It does sort of depend on how the quantity
information is stored (but there is almost always a better way than a
table lock)


Fred

, or they have to be serially examined in someway,
> such as a single order FIFO queue. You could create an observer, for
> example, that monitors the creation of an order, checks to see if stock
> (tickets, seats, CD's, whatever) is available; and gracefully back-out an
> order that "goes over." Personally, I would be tempted to try a simple
> solution, like a queue of some sort first, or perhaps an observer, rather
> than use the database. This is one of those cases where trying to optimize
> too early may hurt. A simple, single, global queue may be all you need.
> YMMV.
> Cheers--
>
> Charles
>
> On Wed, Apr 15, 2009 at 3:02 AM, Frederick Cheung <
>
> frederick.che...@gmail.com> wrote:
>
> > On Apr 14, 10:55 pm, steveluscher  wrote:
> > > What do you think is the best way to prevent overselling in this case?
> > > I've considered:
>
> > > * Table locking (sucks)
> > > * Setting a lock file per-Product (filesystem-y and not elegantly
> > > scalable past one machine)
> > > * Setting a lock variable per-Product in a memcached store
> > > * A single-worker queue that validates and processes orders in
> > > sequence
> > > * A per Product single-worker queue that validates and processes
> > > orders in sequence
> > > * Something I haven't considered?
>
> > It sort of depends where the information that only 3 more orders for
> > Product X lives.
> > For example if the products table has a stock_remaining column, then
> > for me the natural thing to do would be to use optimistic locking on
> > the products table
> > I wrote up some possibilities at
> >http://www.spacevatican.org/2008/6/8/dealing-with-concurrency
>
> > Fred
> > > What do you think?
> > > Steve!
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[Rails] Re: external programs

[BenH]

you may try something along this line:

timeout(10) do
  %x{sleep 12}
end

rescue Timeout::Error
  # Do something to handle the time out.
  puts "The sleep command timed out"
end

Hope that gets you going in a good direction.
BenH

On Apr 15, 7:41 am, Svetlana Vt 
wrote:
> how i can follow to execute external programs: define, that they don't
> hung with Kernel method system or another? may be use timeout?
>
> excuse me for my bad english :)
> --
> Posted viahttp://www.ruby-forum.com/.
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[Rails] Backspace in strings and patterns

[Jeffrey L. Taylor]

Interesting.  Not what I expected.  This is Ruby 1.8.6.

> irb
irb(main):001:0> str = "abx\bc"
=> "abx\bc"
irb(main):002:0> str.length
=> 5
irb(main):003:0> s = str.sub(/.\b/, '')
=> "ab\bc"
irb(main):004:0> s.length
=> 4
irb(main):005:0> s = str.sub(/.\x08/, '')
=> "abc"
irb(main):006:0> s.length
=> 3
irb(main):007:0> 

Backspace character representation in ASCII, UTF-8, etc. is 8.

Jeffrey

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[Rails] Re: Controlling concurrency

[Hassan Schroeder]

On Tue, Apr 14, 2009 at 2:55 PM, steveluscher  wrote:

> 1) You are selling Orders for items of various ProductVariants,
> belonging to one Product
> 2) There may be an upper limit to how many Orders you can take for any
> given Product

> What do you think is the best way to prevent overselling in this case?

> * Something I haven't considered?

My wife sells jewelry and many pieces are one-of-a-kind. I have an
inventory table with an entry for each piece, including location: web
site, gallery, etc.

If a customer puts that item in a cart, then the "location" is set to the
cart id, and no one else can even see the item, much less purchase
it. If the cart times out, the item is returned to inventory and becomes
visible again.

Maybe not directly analogous to your situation, but something to think
about. :-)

HTH,
-- 
Hassan Schroeder  hassan.schroe...@gmail.com

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[Rails] Re: radio buttons?

[Frederick Cheung]

On 15 Apr 2009, at 15:05, Dave Smith wrote:

>
> Frederick Cheung wrote:
>> On 15 Apr 2009, at 12:54, Dave Smith wrote:
>>
> <%= f.radio_button :published_at, false %> No
>>> i was actually hoping for when they check the yes option is puts the
>>> current time in the field. and when they click no it is removed.
>>
>> Ah, so that's more than a radio button. it's some radio buttons +  
>> your
>> favourite date input method, together with a chunk of javascript that
>> does stuff to those input controls.
>> The radio_button would be for a separate attribute (which might not
>> even be a real one) to published_at
>>
>> Fred
>
> ahh ok! thanks, is that much more difficult to implement? i have
> searched for examples online and in my rails books but cannot find
> anything.

Not massively difficult. Not a rails issue at all though - get out  
your html and javascript books to find out about event handling and so  
on.

Fred
>
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >


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[Rails] external programs

[Svetlana Vt]

how i can follow to execute external programs: define, that they don't
hung with Kernel method system or another? may be use timeout?

excuse me for my bad english :)
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[Rails] gem install mysql "checking for mysql_query() in -lmysqlclie

[Rob Redmon]

I've seen this before but I've forgotten how to solve it.



It appears that I have the mysql client libraries installed:

i...@retro[08:25:55][~/] locate libmysqlclient.so

/usr/lib/mysql3/mysql/libmysqlclient.so

/usr/lib/mysql3/mysql/libmysqlclient.so.10

/usr/lib/mysql3/mysql/libmysqlclient.so.10.0.0

/usr/lib/mysql/libmysqlclient.so

/usr/lib/mysql/libmysqlclient.so.14

/usr/lib/mysql/libmysqlclient.so.10

/usr/lib/mysql/libmysqlclient.so.10.0.0

/usr/lib/mysql/libmysqlclient.so.14.0.0



My LD_LIBRARY_PATH is:

export
LD_LIBRARY_PATH=/usr/lib/oracle/10.2.0.4/client64/lib:/usr/lib/mysql/



OS:

Linux XYZ 2.6.18-128.1.6.el5 #1 SMP Tue Mar 24 12:05:57 EDT 2009 x86_64
x86_64 x86_64 GNU/Linux



What gives?



Full "gem install mysql" output follows:



ERROR:  Error installing mysql:

ERROR: Failed to build gem native extension.



/home/iono/packages/ruby-1.8.7/bin/ruby extconf.rb install mysql

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lm... yes

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lz... yes

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lsocket... no

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lnsl... yes

checking for mysql_query() in -lmysqlclient... no

*** extconf.rb failed ***

Could not create Makefile due to some reason, probably lack of

necessary libraries and/or headers.  Check the mkmf.log file for more

details.  You may need configuration options.



Provided configuration options:

--with-opt-dir

--without-opt-dir

--with-opt-include

--without-opt-include=${opt-dir}/include

--with-opt-lib

--without-opt-lib=${opt-dir}/lib

--with-make-prog

--without-make-prog

--srcdir=.

--curdir

--ruby=/home/iono/packages/ruby-1.8.7/bin/ruby

--with-mysql-config

--without-mysql-config

--with-mysql-dir

--without-mysql-dir

--with-mysql-include

--without-mysql-include=${mysql-dir}/include

--with-mysql-lib

--without-mysql-lib=${mysql-dir}/lib

--with-mysqlclientlib

--without-mysqlclientlib

--with-mlib

--without-mlib

--with-mysqlclientlib

--without-mysqlclientlib

--with-zlib

--without-zlib

--with-mysqlclientlib

--without-mysqlclientlib

--with-socketlib

--without-socketlib

--with-mysqlclientlib

--without-mysqlclientlib

--with-nsllib

--without-nsllib

--with-mysqlclientlib

--without-mysqlclientlib





Gem files will remain installed in
/home/iono/packages/gems/gems/mysql-2.7 for inspection.
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[Rails] Re: Controlling concurrency

[Charles Johnson]

If you positively cannot have overbooking (oops, airline talk) over-selling,
then all your orders have to either lock a table (using the database to
enforce serialization), or they have to be serially examined in someway,
such as a single order FIFO queue. You could create an observer, for
example, that monitors the creation of an order, checks to see if stock
(tickets, seats, CD's, whatever) is available; and gracefully back-out an
order that "goes over." Personally, I would be tempted to try a simple
solution, like a queue of some sort first, or perhaps an observer, rather
than use the database. This is one of those cases where trying to optimize
too early may hurt. A simple, single, global queue may be all you need.
YMMV.
Cheers--

Charles

On Wed, Apr 15, 2009 at 3:02 AM, Frederick Cheung <
frederick.che...@gmail.com> wrote:

>
> On Apr 14, 10:55 pm, steveluscher  wrote:
> > What do you think is the best way to prevent overselling in this case?
> > I've considered:
> >
> > * Table locking (sucks)
> > * Setting a lock file per-Product (filesystem-y and not elegantly
> > scalable past one machine)
> > * Setting a lock variable per-Product in a memcached store
> > * A single-worker queue that validates and processes orders in
> > sequence
> > * A per Product single-worker queue that validates and processes
> > orders in sequence
> > * Something I haven't considered?
> >
>
> It sort of depends where the information that only 3 more orders for
> Product X lives.
> For example if the products table has a stock_remaining column, then
> for me the natural thing to do would be to use optimistic locking on
> the products table
> I wrote up some possibilities at
> http://www.spacevatican.org/2008/6/8/dealing-with-concurrency
>
> Fred
> > What do you think?
> > Steve!
> >
>

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[Rails] Can Rails I18n translate plugins ?

[Tom Ha]

Hi there,

can anyone tell me if it is possible for Rails' (2.3.2) I18n component
to translate files *outside* of the 'app' folder (i.e. plugins in the
'vendor' folder)?

Would it need any kind of "hack" or would files be translated following
simply the standard procedure?

Thanks!
Tom
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[Rails] [ANN] rspec 1.2.4 Released

[David Chelimsky]

rspec version 1.2.4 has been released!

Be sure to check History.rdoc and Updgrade.rdoc at
http://rspec.rubyforge.org/rspec/1.2.4/ before upgrading.

* 
* 
* 
* 

Behaviour Driven Development for Ruby.

Changes:

### Version 1.2.4

* bug fix
  * just one - update the manifest

### Version 1.2.3

* enhancements
  * support for specifying single examples with colon syntax. Closes #712.
(Ben Mabey)
* you can now say "spec some_spec.rb:12" in addition to "spec some_spec.rb
  --line 12"
  * run specs locally with --drb if no drb server is running. Closes #780.
* still prints "No server running" to stderr

* bug fixes
  * support expectations on DelegateClass (Clifford T. Matthews). Closes #48.
  * Fixed match_array blows up if elements can't be sorted (Jeff
Dean). Closes #779.

* deprecations
  * BaseFormatter#add_example_group (use #example_group_started instead)
  * ExampleGroupProxy#backtrace (use #location instead)
  * ExampleProxy#backtrace (use #location instead)
  * BaseFormatter#example_pending now expects two arguments. The third
argument is deprecated.
  * ExampleGroupProxy#filtered_description. This was only used in one place
internally, and was a confusing solution to the problem. If you've got a
custom formatter that uses it, you can just use
ExampleGroupProxy#description and modify it directly.
  * predicate_matchers (use the new Matcher DSL instead)
  * Spec::Matchers.create (use Spec::Matchers.define instead)

* 
* 
* 
* 

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[Rails] Re: radio buttons?

[Dave Smith]

Frederick Cheung wrote:
> On 15 Apr 2009, at 12:54, Dave Smith wrote:
> 
 <%= f.radio_button :published_at, false %> No
>> i was actually hoping for when they check the yes option is puts the
>> current time in the field. and when they click no it is removed.
> 
> Ah, so that's more than a radio button. it's some radio buttons + your
> favourite date input method, together with a chunk of javascript that
> does stuff to those input controls.
> The radio_button would be for a separate attribute (which might not
> even be a real one) to published_at
> 
> Fred

ahh ok! thanks, is that much more difficult to implement? i have 
searched for examples online and in my rails books but cannot find 
anything.
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[Rails] Re: install error for rails-widgets

[nmt999]

When I executed the install command, I did not get any output. The only thing
I noticed after investigating my application directory is that, it created a
directory in vendor/plugins/rails-widgets. However, this directory is empty.

Thanks,


Rick-13 wrote:
> 
> 
> This is what you should see as a result of your plugin install:
> 
> /widgets 516 > script/plugin install
> git://github.com/paolodona/rails-widgets.git
> Initialized empty Git repository in /Users/rick/widgets/vendor/plugins/
> rails-widgets/.git/
> remote: Counting objects: 78, done.
> remote: Compressing objects: 100% (71/71), done.
> remote: Total 78 (delta 8), reused 21 (delta 0)
> Unpacking objects: 100% (78/78), done.
> From git://github.com/paolodona/rails-widgets
>  * branchHEAD   -> FETCH_HEAD
> cp /Users/rick/widgets/vendor/plugins/rails-widgets/images/
> tooltip_arrow.gif /Users/rick/widgets/public/images/widgets/
> tooltip_arrow.gif
> cp /Users/rick/widgets/vendor/plugins/rails-widgets/images/
> tooltip_image.gif /Users/rick/widgets/public/images/widgets/
> tooltip_image.gif
> cp /Users/rick/widgets/vendor/plugins/rails-widgets/javascripts/
> tooltip.js /Users/rick/widgets/public/javascripts/widgets/tooltip.js
> 
> 
> Did you omit this output from your mail message or what?  Was any
> output produced when you ran the install?
> 
> 
> 
> On Apr 14, 2:05 pm, nmt999  wrote:
>> When i am trying to install the rails-widgets on windows vista
>> fromhttp://wiki.github.com/paolodona/rails-widgetslocation I get an
>> error.
>> Please help.
>> cd myrails-app
>> ruby script/plugin install git://github.com/paolodona/rails-widgets.git
>> rake widgets:setup
>>
>> following is the error
>> 
>> rake aborted!
>> Don't know how to build task 'widgets:setup'
>>
>> (See full trace by running task with --trace)
>>
>> ---
>> Then I tried with the following command
>> rake widgets:setup --trace
>>
>> following is the error
>> ---
>> rake aborted!
>> Don't know how to build task 'widgets:setup'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1704:in `[]'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2026:in
>> `invoke_task'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `each'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in
>> `standard_exception_handling'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1999:in `top_level'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1977:in `run'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in
>> `standard_exception_handling'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1974:in `run'
>> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/bin/rake:31
>> c:/ruby/bin/rake:16:in `load'
>> c:/ruby/bin/rake:16
>>
>> --
>> View this message in
>> context:http://www.nabble.com/install-error-for-rails-widgets-tp23048157p2304...
>> Sent from the RubyOnRails Users mailing list archive at Nabble.com.
> > 
> 
> 

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[Rails] Re: Passenger caching in development mode, wtf?

[Charles Johnson]

I've not tried this, but as a last resort you might try: touch
tmp/always_restart.txt in your application’s root folder.
Cheers--

Charles

On Wed, Apr 15, 2009 at 3:11 AM, Frederick Cheung <
frederick.che...@gmail.com> wrote:

>
>
>
> On Apr 15, 5:58 am, Petr Janda 
> wrote:
> > This makes no difference. The problem is with mongrel is that I need the
> > devel applications to be accessible even when im not developing, ie.
> > client review. And id need to make a start up script in case i reboot
> > the server to make all the mongrels start up. Its just hassle.
> > dispatch.cgi/fcgi was ideal for simple setup in development mode where
> > speed usually doesnt matter.
> >
>
> Well the passenger docs imply that it should all just work:
>
> "If you set RailsEnv development in your Apache configuration, then
> Rails will automatically reload your application code after each
> request"
>
> You might want to ask the passenger mailing list or similar why it
> doesn't seem to be working for you.
>
> Fred
> > PP Junty wrote:
> > > perhaps here:
> >
> > >http://www.modrails.com/documentation/Users%20guide.html#RailsSpawnMe.
> ..
> >
> > > but can't you use mongrel for development and passenger for production?
> >
> > > Petr Janda wrote:
> > >> I just tested with Ruby 1.8 and its the same behaviour.
> >
> > >> An clues people?
> >
> > --
> > Posted viahttp://www.ruby-forum.com/.
> >
>

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[Rails] Re: About haml and ruby on rail

[Marnen Laibow-Koser]

Nilesh Kulkarni wrote:
[...]
> 
> code of show.html.erb and show.html.haml is in "haml_and_html_file.txt"
> attachment whth first post..

Sorry, I missed that.  I'll check it out.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
mar...@marnen.org
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[Rails] Re: SQL Server via DBI/ODBC configuration

[Harold]

Mike, in my experience this has been painful. Here's a few things to
look for:

First, make sure that TDS is set up fine. Verify it with this command:
tsql -S server -U user -P password

Make sure you have ruby-odbc to have ruby load the ODBC driver (think
this could potentially solve your issue). My instructions on a fedora
box are:
RubyODBC:
wget http://ch-werner.de/rubyodbc/ruby-odbc-0.9996.tar.gz
tar -xvzpf ruby-odbc-0.9996.tar.gz
cd ruby-odbc-0.9996
ruby extconf.rb
make
sudo make install

Test it out again. If you have a problem with the data source, a way
to test it directly is:

isql -v datasource username password



Hope that helps,
-Harold

On Apr 14, 7:21 pm, mvargo  wrote:
> Dear Chris,
>
> Thank you for reponding.  I tried that.  I get the same error from a
> different stack.  It finds the new sqlserver.rb from the gem you
> suggested.  But it still barfs in DBI because it can't find the ODBC
> driver.  I wonder if it's some kind of path thing for finding the dbd-
> odbc thing.  It's beyond my rails capabilities to figure out how the
> gems find each other.  I'm sure it's some lame thing (it always is!).
>
> Any other advice would be greatly appreciated.
>
> Mike
>
> >> subscriber = Subscriber.find(1)
>
> DBI::InterfaceError: Unable to load driver 'ODBC'
>         from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:286:in
> `load_driver'
>         from /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
>         from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:236:in
> `load_driver'
>         from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:154:in
> `_get_full_driver'
>         from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:139:in
> `connect'
>         from /home/mvargo/.gem/ruby/1.8/gems/rails-sqlserver-2000-2005-
> adapter-2.2.15/lib/active_record/connection_adapters/
> sqlserver_adapter.rb:26:in `sqlserver_connection'
>
> On Apr 14, 11:22 am, Chris Johnson  wrote:
>
> > Try this gem out, works for me I think your on the right 
> > path...http://github.com/rails-sqlserver/2000-2005-adapter/tree/master
>
> > On Tue, Apr 14, 2009 at 12:29 PM, mvargo  wrote:
>
> > > I have followed the cookbook on
> > >http://wiki.rubyonrails.org/database-support/ms-sql
> > > but am having problems with the rails part.  I can connect to the
> > > database using sqsh so I think all the freetds plumbing is good.  When
> > > I try to connect to the db with a rake db:migrate or just using script/
> > > console I get this error:
>
> > > >> Client.find(:first)
> > > DBI::InterfaceError: Unable to load driver 'ODBC'
> > >        from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:286:in
> > > `load_driver'
> > >        from /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
> > >        from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:236:in
> > > `load_driver'
> > >        from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:154:in
> > > `_get_full_driver'
> > >        from /usr/lib/ruby/gems/1.8/gems/dbi-0.4.0/lib/dbi.rb:139:in
> > > `connect'
> > >        from /usr/lib/ruby/gems/1.8/gems/activerecord-sqlserver-
> > > adapter-1.0.0.9250/lib/active_record/connection_adapters/
> > > sqlserver_adapter.rb:47:in `sqlserver_connection'
> > >        from
> > > /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/
> > > connection_adapters/abstract/connection_pool.rb:223:in `send'
> > >        from
> > > /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/
> > > connection_adapters/abstract/connection_pool.rb:223:in
> > > `new_connection'
>
> > > database.yml  is:
>
> > > development:
> > >    adapter: sqlserver
> > >    mode: ODBC
> > >    dsn: CONTENT_STORE
> > >    username: joebob
> > >    password: secret
>
> > > So I looked into dbi.rb and I see where it throws the exception.  It
> > > can't seem to get the Driver called ODBC.  I do have dbd-odbc-0.2.4
> > > installed.  Seems like the dbi part is not connecting to the odbc
> > > part.
>
> > > Rails is running on ubuntu 8.1.
>
> > > Any pointers would be very welcome.
>
> > > Sincerely,
>
> > > Mike Vargo
>
> > > *** LOCAL GEMS ***
>
> > > actionmailer (2.3.2)
> > > actionpack (2.3.2)
> > > activerecord (2.3.2)
> > > activerecord-sqlserver-adapter (1.0.0.9250)
> > > activeresource (2.3.2)
> > > activesupport (2.3.2)
> > > capistrano (2.5.5)
> > > cgi_multipart_eof_fix (2.5.0)
> > > daemons (1.0.10)
> > > dbd-odbc (0.2.4)
> > > dbi (0.4.0)
> > > deprecated (2.0.1)
> > > fastthread (1.0.7)
> > > gem_plugin (0.2.3)
> > > highline (1.5.0)
> > > linecache (0.43)
> > > mongrel (1.1.5)
> > > net-scp (1.0.2)
> > > net-sftp (2.0.2)
> > > net-ssh (2.0.11)
> > > net-ssh-gateway (1.0.1)
> > > rails (2.3.2)
> > > rake (0.8.4)
> > > ruby-debug-base (0.10.3)
> > > ruby-debug-ide (0.4.5)
> > > rubygems-update (1.3.1)
> > > sqlite3-ruby (1.2.4)
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[Rails] Multiple CheckBox and Radio Buttons

[Naveen Naveen]

 I am using multiple check box (more than 1 checkboxes) and a radio
button and when I click the "Submit" button, it calls the "create"
method it is inserting only 1 value for checkbox and also for the radio
button.
Could you please tell how to insert multiple check box values in create.




 Also, in the scaffold edit page, the default "edit" method displays
all the fields (including checkbox and radio buttons) as
"text_field"(text box) with only single value.
Could you please tell how to populate multiple checkbox and radio
buttons in the edit page with the values populating.
-- 
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[Rails] Re: radio buttons?

[Frederick Cheung]

On 15 Apr 2009, at 12:54, Dave Smith wrote:

>
> Frederick Cheung wrote:
>> On 15 Apr 2009, at 12:05, Dave Smith wrote:
>>
>>>
>>> if i got a couple of radio buttons on my form that i want to use a
>>> published_at field rather than a boolean field how would i go about
>>> this? I know that if i'm using a boolean i can do the following.
>>>
>>> <%= f.radio_button :published_at, true %> Yes
>>> <%= f.radio_button :published_at, false %> No
>>>
>>> but what would i have to change to use the datetime field?
>>>
>> Are you expecting people to enter a date or to choose between one of
>> several dates ?
>>
>> Fred
>
> Hi,
>
> i was actually hoping for when they check the yes option is puts the
> current time in the field. and when they click no it is removed.

Ah, so that's more than a radio button. it's some radio buttons + your  
favourite date input method, together with a chunk of javascript that  
does stuff to those input controls.
The radio_button would be for a separate attribute (which might not  
even be a real one) to published_at

Fred
>
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >


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[Rails] Re: RoR engineers needed in San Francisco

[tony luo]

Me, either...

On Wed, Apr 15, 2009 at 7:51 PM, 饕餮 | Daniel  wrote:

> Very interesting, but I am not in US. What a pity..  :(
>
>
> >
>


-- 
Tony Luo
http://blog.tech4k.com/

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[Rails] Re: RoR engineers needed in San Francisco

[饕餮 | Daniel]

Very interesting, but I am not in US. What a pity..  :(

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[Rails] Re: radio buttons?

[Dave Smith]

Frederick Cheung wrote:
> On 15 Apr 2009, at 12:05, Dave Smith wrote:
> 
>>
>> if i got a couple of radio buttons on my form that i want to use a
>> published_at field rather than a boolean field how would i go about
>> this? I know that if i'm using a boolean i can do the following.
>>
>> <%= f.radio_button :published_at, true %> Yes
>> <%= f.radio_button :published_at, false %> No
>>
>> but what would i have to change to use the datetime field?
>>
> Are you expecting people to enter a date or to choose between one of
> several dates ?
> 
> Fred

Hi,

i was actually hoping for when they check the yes option is puts the 
current time in the field. and when they click no it is removed.
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[Rails] Re: radio buttons?

[Frederick Cheung]

On 15 Apr 2009, at 12:05, Dave Smith wrote:

>
> if i got a couple of radio buttons on my form that i want to use a
> published_at field rather than a boolean field how would i go about
> this? I know that if i'm using a boolean i can do the following.
>
> <%= f.radio_button :published_at, true %> Yes
> <%= f.radio_button :published_at, false %> No
>
> but what would i have to change to use the datetime field?
>
Are you expecting people to enter a date or to choose between one of  
several dates ?

Fred

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[Rails] Please help in Multiple Checkbox and RadioButtons

[Naveen Naveen]

 I am using multiple check box (more than 1 checkboxes) and a radio
button and when I click the "Submit" button, it calls the "create"
method it is inserting only 1 value for checkbox and also for the radio
button.
How to insert multiple check box values in create.

 Also, in the scaffold edit page, the default "edit" method displays
all the fields (including checkbox and radio buttons) as
"text_field"(text box) with only single value. How to populate multiple
checkbox and radio buttons in the edit page with the values populating.
-- 
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[Rails] radio buttons?

[Dave Smith]

if i got a couple of radio buttons on my form that i want to use a
published_at field rather than a boolean field how would i go about
this? I know that if i'm using a boolean i can do the following.

<%= f.radio_button :published_at, true %> Yes
<%= f.radio_button :published_at, false %> No

but what would i have to change to use the datetime field?

many thanks in advance guys,
-- 
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[Rails] Re: German letter ä, ö, ü in rfpdf

[Salil Gaikwad]

MaD wrote:
> You might wanna change "Vorhunden" to "vorhanden" to make it German.

thanx. but I check it with google language tools and it translate 
correctly.
neways that's not an issue i just wanna print special characters like ä, 
ö, ü in rfpdfand fortunatelly for me it works.

Regards,

Salil
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[Rails] Looking for Developers to work fulltime

[faWkes]

Hi,
We are looking for developers who are well versed with PHP, MySQL and
RoR.
The requirement is for full time technical developers and team leads
for a startup, WebMurga.com
website: http://www.webmurga.com
Go through the website to understand what it is about, and interested
people may send in their resumes at care...@webmurga.com mentioning:
a. skillset and experience
b. relevant projects
c. current and expected CTC
d. how soon can u join

Regards,
Aditya Jain
WebMurga.com

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[Rails] Re: German letter ä, ö, ü in rfpdf

[MaD]

You might wanna change "Vorhunden" to "vorhanden" to make it German.
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[Rails] Re: German letter ä, ö, ü in rfpdf

[Salil Gaikwad]

> Hi Salil,
> 
> I made use of the prawn plugin mentioned above. It is very easy and 
> powerful.
> 
> Cheers

Hi Adam,
 Thanx.
I try following code and it works fine for me.I test it only on linux 
though.

enc = Iconv.new('Windows-1252', 'UTF-8')

pdf.select_font("Helvetica")

@data=enc.iconv("Persönlicher LS Vorhunden")

table.data = [
{"name" => @data, "race" => " "}
]

then it display "Persönlicher LS Vorhunden" correctly.

Regards,

Salil
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[Rails] Re: Re: Re: Re: [ANN]Rubricks - CMS on Rails

[Oren Shani]

Shouta Ohnishi wrote:
> Eric Wagoner wrote:
>> However, I couldn't figure out how to go about using it once it was
>> installed. From watching the movie, I understood users and the box
>> model for the pages, but couldn't figure out how to add real content
>> to the pages.
>>
>>   
> Sorry, Current version of Rubricks has no real content, only System
> Component.
> We are making News Component now, and will release it next week.
> 
> Our current release plan is follow:
> 
> April : News Component
> May : RSS Component,Search Block
> June : Official Theme2, Calendar Block
> July : Todo Component,Forum Component,Dash Board(like mac os x tiger)
> 
> Instead of real contents,you can try to install 'Hello World' component 
> now.
> http://dev.rubricks.org/wiki/HelloWorldRubricks
> 
> P.S.
> We'll give out documents for developing components soon.
> We're dreaming of enriching of components like XOOPS.
> 
> Thanks.
> 
> Shouta

I wonder if there are people here who installed and used Rubricks since 
Shouta San sent this announcement.

I am looking for a CMS system which I will be using as the skeleton of 
an application I want to develop, and I just had a look at the current 
version of Rubricks. I think it looks very promising.

So if anyone have experience / extensions or whatever to share, I'd be 
happy to know.

Oren
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[Rails] Re: German letter ä, ö, ü in rfpdf

[Adam Meyer]

Salil Gaikwad wrote:
> Hi all,
>  anyone found any solution for  German letter ä, ö, ü in rf pdf
> i'm facing same problem and i must have tto use PDF::Writer on linux.
> 
> Regards,
> 
> Salil

Hi Salil,

I made use of the prawn plugin mentioned above. It is very easy and 
powerful.

Cheers
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[Rails] Re: install error for rails-widgets

[Rick]

This is what you should see as a result of your plugin install:

/widgets 516 > script/plugin install 
git://github.com/paolodona/rails-widgets.git
Initialized empty Git repository in /Users/rick/widgets/vendor/plugins/
rails-widgets/.git/
remote: Counting objects: 78, done.
remote: Compressing objects: 100% (71/71), done.
remote: Total 78 (delta 8), reused 21 (delta 0)
Unpacking objects: 100% (78/78), done.
>From git://github.com/paolodona/rails-widgets
 * branchHEAD   -> FETCH_HEAD
cp /Users/rick/widgets/vendor/plugins/rails-widgets/images/
tooltip_arrow.gif /Users/rick/widgets/public/images/widgets/
tooltip_arrow.gif
cp /Users/rick/widgets/vendor/plugins/rails-widgets/images/
tooltip_image.gif /Users/rick/widgets/public/images/widgets/
tooltip_image.gif
cp /Users/rick/widgets/vendor/plugins/rails-widgets/javascripts/
tooltip.js /Users/rick/widgets/public/javascripts/widgets/tooltip.js


Did you omit this output from your mail message or what?  Was any
output produced when you ran the install?



On Apr 14, 2:05 pm, nmt999  wrote:
> When i am trying to install the rails-widgets on windows vista 
> fromhttp://wiki.github.com/paolodona/rails-widgetslocation I get an error.
> Please help.
> cd myrails-app
> ruby script/plugin install git://github.com/paolodona/rails-widgets.git
> rake widgets:setup
>
> following is the error
> 
> rake aborted!
> Don't know how to build task 'widgets:setup'
>
> (See full trace by running task with --trace)
>
> ---
> Then I tried with the following command
> rake widgets:setup --trace
>
> following is the error
> ---
> rake aborted!
> Don't know how to build task 'widgets:setup'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1704:in `[]'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2026:in `invoke_task'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `each'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in
> `standard_exception_handling'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1999:in `top_level'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1977:in `run'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in
> `standard_exception_handling'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1974:in `run'
> c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/bin/rake:31
> c:/ruby/bin/rake:16:in `load'
> c:/ruby/bin/rake:16
>
> --
> View this message in 
> context:http://www.nabble.com/install-error-for-rails-widgets-tp23048157p2304...
> Sent from the RubyOnRails Users mailing list archive at Nabble.com.
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