[Rails] How can a gem (unintentionally) change the migrations path?

[Andy Jeffries]

I wrote a Gem (https://github.com/absolutedevops/civo) which is a simple Rails 
Engine containing a few API accessing models.

However, when I include it in a Rails project, any generators create their 
files under the Gem's source code not the project's. I can't see anything I'm 
doing in the Gem that would cause this. It's repeatable (it's happening in two 
projects at my company and I can reproduce it with a minimal set of steps 
below).

Can anyone tell me how I've managed this? I've been a Rails user for many years 
but haven't ever come across this before, nor has a skim through the Rails code 
given me any indication of how I'd change the migrations path if I wanted to!

Thanks,


Andy



Reproducible steps:

$ rails -v
Rails 4.2.6
$ rails new civo-test
[...]
Bundle complete! 12 Gemfile dependencies, 55 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
         run  bundle exec spring binstub --all
* bin/rake: spring inserted
* bin/rails: spring inserted
$ cd civo-test
$ echo 'gem "civo"' >> Gemfile
$ bundle
[...]
Bundle complete! 13 Gemfile dependencies, 66 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
$ rails g migration a_new_migration_here
Running via Spring preloader in process 75091
      invoke  active_record
      create    db/migrate/20160411093346_a_new_migration_here.rb
$ ls -l db/migrate/20160411093346_a_new_migration_here.rb
ls: db/migrate/20160411093346_a_new_migration_here.rb: No such file or directory
$ rails g migration a_new_migration_here                 
Running via Spring preloader in process 75193
      invoke  active_record
   identical    db/migrate/20160411093346_a_new_migration_here.rb
$ ls -l 
/Users/andy/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/civo-0.3.21/db/migrate/
 
total 8
-rw-r--r--  1 andy  staff  73 11 Apr 10:33 
20160411093346_a_new_migration_here.rb

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[Rails] Re: Why can't inline template be rescued?

[Andy Ogzewalla]

By default rescue only matches StandardError. If you are getting another 
type of Exception then your usage of rescue will not be sufficient to 
handle it. You will need to use the multiline form of begin/rescue.

```
begin
  ActionView::Template.new("Test <% if Crash %>", "inline template", 
handler, :locals => {}).render("Test2",{})
rescue Exception  # You should replace Exception with a more specific class 
or classes if possible.
  false
end

On Sunday, October 18, 2015 at 4:17:24 PM UTC-5, kopf1988 wrote:
>
> I am attempting to debug some complicated inline templates, because they 
> are generated dynamically with the complicated way this program works.
>
> However when doing render inline: "Template here" rescue false, an error 
> is still thrown if there's an error in the Template.
>
> I tried this in IRB and it's very weird!
> ActionView::Template.new("Test <% if Crash %>", "inline template", 
> handler, :locals => {}).render("Test2",{}) rescue false
>
> This returns an error, even though we would expect the Rescue to rescue us 
> from the bad code in the inline template. This worked in an old version of 
> Rails.
>
> Any ideas?
>
> Breaking out into multiple lines also didn't help
> begin
> ActionView::Template.new("Test <% if Crash %>", "inline template", 
> handler, :locals => {}).render("Test2",{})
> rescue
> false
> end
>
> Still has an error.
>
> =Ryan
>

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[Rails] Re: Endless scroll

[andy nutter-upham]

Railscasts is now premium content. Perhaps you could provide a bit more 
context.
http://railscasts.com/episodes/114-endless-page-revised?view=asciicast

As a User Experience side note, please be sure that infinite scroll is 
appropriate. Depending on the goals of your user it can be a frustrating 
interface. If you are not tracking infinite scroll position then when a 
user is forced to refresh may loose their place (restoring state is 
important), and consider if a user might want to share a particular part of 
the list (state in the url). For general usability reading: 
http://www.nngroup.com/articles/infinite-scrolling/

On Monday, October 5, 2015 at 4:37:21 AM UTC-4, Hans wrote:
>
> I develop an application in  rails 3.2 and ruby 1.9
> I am using endless scrolls as described in railcars 114. I works fine 
> except when I try to use it on a remote table with remote will paginate. 
> Then there is already an index.js file and I cannot find out how to use 
> endless scrolling this situation
> Grateful for any ideas
>

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Re: [Rails] Can we create Kisok apps using ROR

[andy nutter-upham]

As Norbert suggests this is a User Agent (browser) feature. Have a look at 
these configurations for linux/chrome and linux/firefox. 
http://askubuntu.com/questions/124759/customize-ubuntu-for-a-library-internet-kiosk

On Tuesday, October 6, 2015 at 4:38:35 PM UTC-4, Norbert Melzer wrote:
>
> Kiosk mode is a feature of some UAs, just try to hit F11, works in FF and 
> Chrome at least. Exiting is via F11 also. 
>
> But I don't see how it would be different to do this with rails instead of 
> php or plain HTML. it's a feature of the client, not the server. 
>
> Colin Law > schrieb am Di., 06.10.2015, 
> 22:08:
>
>> On 6 October 2015 at 17:35, VIDYA SAGAR POGIRI
>> > wrote:
>> > Hi , need help from all of you guys on a question that Can we develop a
>> > Kisok App using ROR. If yes can you provide me the details or link so 
>> that i
>> > will go through.
>>
>> Showing my ignorance here, and google has not helped.  What is a Kisok 
>> App?
>>
>> Colin
>>
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Re: [Rails] Why does Rails throw an autoloading constant exception when I use threads?

[Andy Rose]

Oh wow, thanks, super interesting.

So the issue is that the same file gets autoloaded twice... I see. Thanks 
so much man. Yeah will check out that article, really appreciate the answer.

So as you said this *shouldn't* be an issue in production since as you said 
rails will eager load everything. Cool, great to know!

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Re: [Rails] Why does Rails throw an autoloading constant exception when I use threads?

[Andy Rose]

Hey Xavier, thanks so much! Really appreciate your answer!

Could you maybe describe to me (or point me in the right direction) to how 
content autoloading happens?

You know what it? I've kinda solved the issue by just referencing the 
constant explicitly. But I'm really curious as to how Rails ends up 
throwing that circular dependency exception.

Like... I get what happens when you have a non-threadsafe variable... 
because actually setting a variable requires multiple steps in the MRI and 
so while one thread is reading from a variable before setting it, another 
thread has already set it to something.

But what's going on here like... one thread tries to autoload a 
constant... and then before it's done another thread does the same and 
then... why does that result in a circular reference exception? Any ideas?

On Wednesday, 4 February 2015 10:23:29 UTC, Xavier Noria wrote:
>
> On Wed, Feb 4, 2015 at 12:12 AM, Andy Rose  > wrote:
>
> Hey guys, I posted this on Stackoverflow but it's not getting much love.
>>
>> Note in the question that I've found a solution to my problem. However 
>> I'm curious as to what is going on here. Why does Rails encounter a race 
>> condition when auto-loading an ActiveRecord model association...?
>>
>>
>> http://stackoverflow.com/questions/28267513/why-does-rails-throw-an-autoloading-constant-exception-when-i-use-threads
>>
>> Feel free to answer on SO if you have an account, but here's cool too.
>>
>
> Hey, I am not on SO.
>
> Constant autoloading is not thread-safe (it can't be). That's one of the 
> reasons by default Rails eager loads the application code in production 
> mode.
>
> There are a few things you can do. The easiest one is to enable eager 
> loading by setting config.eager_load = true (in modern versions of Rails). 
> Another possibility is to load the files with the involved classes using 
> require_dependency in your script before spawning threads.
>
>

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[Rails] Why does Rails throw an autoloading constant exception when I use threads?

[Andy Rose]

Hey guys, I posted this on Stackoverflow but it's not getting much love.

Note in the question that I've found a solution to my problem. However I'm 
curious as to what is going on here. Why does Rails encounter a race 
condition when auto-loading an ActiveRecord model association...?

http://stackoverflow.com/questions/28267513/why-does-rails-throw-an-autoloading-constant-exception-when-i-use-threads

Feel free to answer on SO if you have an account, but here's cool too.

Cheers!

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[Rails] Re: :to argument to match() -- how is it converted to class/method name

[Andy Ogzewalla]

This is not really documented anywhere, and tracing through the source is 
difficult. Within Rails the string inflector methods #classify and 
#underscore are used to go between snake-case names and camel-cased class 
and module names.

http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html#method-i-underscore

"MyFoo".underscore  # => "my_foo"
"MyApp::Foo".underscore  # => "my_app/foo"

http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html#method-i-classify

"my_foo".classify # => "MyFoo"
"my_app/foo".classify  # => "MyApp::Foo"


On Monday, October 27, 2014 2:25:17 PM UTC-5, Brian Sammon wrote:
>
> Is there any documentation for how the match command converts the ":to" 
> argument to a class and method name? 
>
> If I have 
>match '', to: '#', 
> via: :get 
> How does it go from  to , and 
> more importantly, how do I go in the reverse direction? 
>
> I can probably figure this out via trial-and-error, but I'd like to see 
> docs if there are some, or contribute some docs if not. 
>

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[Rails] Re: Authentication failed. when login heroku

[Andy Zhang]

It's an error on heroku side

V:\>heroku status
=== Heroku Status
Development: yellow
Production:  No known issues at this time.

=== Elevated rate of CLI/Toolbelt errors  2014/07/22 09:22:22 (~ 1h+)
2014/07/22 10:52:27 (~ 26m ago)  investigating  We are still 
investigating the T
oolbelt errors. We will post another update in an hour, if not sooner.
2014/07/22 09:49:19 (~ 1h ago)   investigating  Our engineers are still 
investig
ating the Toolbelt errors. We will provide more information as soon as 
possible.

2014/07/22 09:22:22 (~ 1h ago)   investigating  We are seeing an 
elevated rate o
f errors from the Heroku Toolbelt. Our engineers are investigating.

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[Rails] Re: Authentication failed. when login heroku

[Andy Zhang]

Reinstalling the heroku toolbelt does'nt solve the problem.
But installing on a new machine works!

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[Rails] Re: Authentication failed. when login heroku

[Andy Zhang]

I have the same problem.
But no solution yet.

Any news from your side?

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Re: [Rails] Difference between Cookies and Sessions

[Andy Jeffries]

Cookies are stored key/value pairs (with other attributes such as expiry,
domain, path and ssl requirements) in the client's browser.  The
specification for them is in the HTTP specification and these can
(generally) be read by backend languages such as Rails or frontend
technologies such as Javascript.

Sessions are an unrestricted storage area for applications, generally used
by the backend language only (due to encryption and hash protection with
server side secrets), although they may be stored in their entirety in a
client-side cookie for convenience to avoid "sticky sessions" where
requests have to come back to the same backend server.

Hope this helps.

Cheers,


Andy

*Andy Jeffries* Ruby on Rails, RubyMotion, jQuery Developer & Taekwondo 6th
Dan Instructor
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On 7 July 2014 10:21, Praveen BK  wrote:

> Hello,
>
>  Can anybody please define cookies and sessions and their
> differences in detail with reference to rails.
>
>
> Thank you,
> Praveen
>
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Re: [Rails] Application trace in the error page for a Rails engine

[Andy Jeffries]

Yes, Engines are considered part of the framework level rather than the
application level.  If I developed an engine and released it as a gem, you
wouldn't want my lines littering your application stack trace, right?

Cheers,


Andy

*Andy Jeffries* Ruby on Rails, RubyMotion, jQuery Developer & Taekwondo 6th
Dan Instructor
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On 7 July 2014 12:04, David Morales  wrote:

> I'm developing a Rails engine, and when debugging an error through the
> default Rails error page, I find that the Application trace shows nothing,
> while Framework trace and Full trace show the trace.
>
> Is this intended for an engine?
>
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Re: [Rails] What is your style? Single quote, double quotes or depends?

[Andy Jeffries]

On 25 March 2014 15:24, Colin Law  wrote:

> My comment "Or, possibly, slower" was to point out that you had said
> double quotes were 2% faster when I believe you meant slower.
>
> My consistency question was prompted by that fact that when there are
> such small differences one has to be careful that one is seeing a real
> effect, which apparently you were, so that is all right.
>

Doh, fair point, thanks for catching that :-)

Cheers,


Andy

*Andy Jeffries* Ruby on Rails, RubyMotion, jQuery Developer & Taekwondo 6th
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Re: [Rails] What is your style? Single quote, double quotes or depends?

[Andy Jeffries]

On 17 March 2014 15:32, Colin Law  wrote:

> Did you try swapping the two lines round and checking that the result
> is consistent?
>

Yes, it's consistent for me.  Was it not for you or are you just asking?

Cheers,


Andy

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Re: [Rails] What is your style? Single quote, double quotes or depends?

[Andy Jeffries]

According to a quick benchmark on my machine (MacBook Air 2013, Ruby
2.1.0p0), using double quotes is about 2% faster:

require 'benchmark'

n = 10_000_000
Benchmark.bm do |x|
  x.report { n.times do ; a = "1"; end }
  x.report { n.times do ; a = '1'; end }
end

   user system  totalreal
   1.02   0.00   1.02 (  1.015903)
   0.99   0.00   0.99 (  0.992175)

However, as you can see it takes about 1 second to do 10 million
iterations, so in reality, using a " instead of a ' adds on about 2
nanoseconds on a 99 nanosecond operation.  There are much bigger
inefficiencies in all of our code than worrying about saving the odd 2ns
here and there...

I personally tend to use double quotes everywhere, for the same reason that
I never do if statements on multiple lines (in Javascript for example)
without braces.  I'd much rather have the almost unmeasurable wastage than
risk a bug.

Cheers,


Andy

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[Rails] Announcing: ActiveRestClient

[Andy Jeffries]

The company I'm currently contracting at has released their first piece of
Open Source Software, a Ruby gem for interacting with REST servers.  There
are other gems out there but we wanted something that felt more like using
ActiveRecord (like ActiveResource) but more customisable.

http://whichdigital.github.io

If anyone has any questions or runs in to any problems with it, let me know.

It was mentioned on Ruby 5 this week, so grateful if anyone likes it and
fancies tweeting/blogging about it...

Cheers,


Andy

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[Rails] Re: Capybara throws printer errors with every test

[Andy Joel]

The problem seems to be the name of the action, "test", and nothing to 
do with printers at all. Any action that starts "test" seems to be 
affected, though I am still not sure why.

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[Rails] Capybara throws printer errors with every test

[Andy Joel]

I am in the process of upgrading from Rails 3 to 4. Whenever I run a
test I always get two errors like this:

Capybara::Rails::TestCase#test_printer_url:
ActionController::UrlGenerationError: No route matches {:action=>"test",
:controller=>"printers"} missing required keys: [:id]

If I test all my controllers I get 2, if I just test one of my models I
get the same 2. They are nothing to do with any test I have written
myself, they seem to be tests Capybara is running on itself.

The problem seems to arise because I have a route for printers in my
project, set up like this.

 resources :printers do
member do
  get :test
end
  end

Okay, so just rename it to something to stop the name collision... If I
rename "test" to "test_printer45745dc", or I change it from GET to POST
it still fails! And if I have a second member line in there, I get four
errors.

If I change it to a collection, I get a different error:

Capybara::Rails::TestCase#test_printers_url:
ArgumentError: Missing host to link to! Please provide the :host
parameter, set default_url_options[:host], or set :only_path to true

What Capybara seems to do is to generate tests on the fly, based on the
routes, and then generate errors however they are set up.

Why would it do that? What can I do about it?

I am using JRuby 1.7.4 on Windows, by the way

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Re: [Rails] stub not working

[Andy Lindeman]

On Fri, May 24, 2013 at 8:07 AM, Aashish Kiran  wrote:
> Hi,
> I am testing views. I dont understand why stubs are not working.
> Can anyone help.
>
> view code :
>
>  before(:all) do
> @current_user = stub("User")
> assigns[:message] = @current_user
>   end
>
> output:
> NoMethodError:
>undefined method `stub' for #http://www.andylindeman.com/

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[Rails] Does anyone know what is causing auto-generated config.rb file for stylesheets?

[Andy Ogzewalla]

Recently a particular Rails app I'm working with began to auto-generate a 
file app/assets/stylesheets/config.rb. It looks similar to a Compass 
configuration file, but this app does _not_ use Compass.

I've found a couple threads about this, but so far no answers.
http://stackoverflow.com/questions/15003841/rails-assets-stylesheets-config-rb
https://github.com/rails/sass-rails/issues/141

Some relevant info about the app's gems:
rails (3.2.12)
sass (3.2.6)
sass-rails (3.2.5)
sprockets (2.2.2)

Most of all I want to know why the file is now appearing and why it is 
important. Should I just git-ignore it? Is it best to add the file to 
version control?

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Re: [Rails] What the Ruby Association

[Andy Chambers]

On Thursday, July 12, 2012 12:37:33 PM UTC-4, Walter Lee Davis wrote:
>
>
> On Jul 12, 2012, at 12:30 PM, Jean-Sébastien D. wrote: 
>
> > Walter Davis wrote in post #1068458: 
> >> On Jul 12, 2012, at 11:18 AM, Jean-Sbastien D. wrote: 
> >> 
> >>> rake db:rollback MMDDHHMMSS_model.rb 
> >> I don't know specifically -- what do the guides say? I've only ever 
> >> stepped back one or two at a time, made my adjustments, then run rake 
> >> db:migrate again to roll back up to the current stage. 
> >> 
> >> Walter 
> > 
> > Thanks I appreciate, i find it weird that you must make a new migration 
> > everytime you made a mistake, its seem to be a lot of overhead in 
> > compilation time. Maybe something that future rails should invest. Who 
> > knows I just started learning ruby. 
> > 
>
> The migrations are typically only run during development, and then you can 
> install from the schema (which maintains a "current state" of the database 
> at all times) 


This is not true.  Lets say you have a working system, being used by 
thousands of users.  The database has enough data that a backup/restore 
takes half a day.  Then you need to add a new feature that requires 3 new 
tables, and new columns on an existing table.  How are you supposed to do 
this *without* running a migration against the production system?

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Re: [Rails] Run performance tests without dumping database

[Andy Chambers]

On Thursday, July 12, 2012 12:01:15 PM UTC-4, Colin Law wrote:
>
> On 12 July 2012 15:37, Andy Chambers wrote: 
> > 
> > 
> > On Thursday, July 12, 2012 3:03:25 AM UTC-4, Colin Law wrote: 
> >> 
> >> On 11 July 2012 01:39, Andy Chambers > wrote: 
> >> > Hi, 
> >> > 
> >> > I'm trying to build a simple performance test on a rails 3 app that 
> >> > operates 
> >> > on a large database (~150GB).  We copy production data to our 
> dev/test 
> >> > setup 
> >> > every night so that we have a realistic environment for development. 
> >> > 
> >> > I followed the guide on creating a test and tried to run it using 
> >> > 
> >> > $ rake test:benchmark 
> >> > 
> >> > Unbelievably, this tried to drop my test database!!!  Fortunately it 
> >> > didn't 
> >> > have permission to do this and failed. 
> >> > Is there a way to skip this step and 
> >> > just run the test against the DB as it exists already.  From the 
> guide, 
> >> > it 
> >> > seems like most rails apps have their test data in yaml files or 
> >> > something 
> >> > but I don't understand how this would scale to a production 
> environment. 
> >> > Code that works well on 100 or so database rows is not necessarily 
> going 
> >> > to 
> >> > work well on millions of rows. 
> >> 
> >> The test environment is designed for testing that stuff works, not for 
> >> performance testing. 
> > 
> > 
> > If this is true, someone should tell that to the official guide 
> maintainers 
> > 
> > http://guides.rubyonrails.org/performance_testing.html 
>
> That munching sound you can hear is me eating my words. 
>
> > 
> >> The test environment is not appropriate for performance testing 
> >> anyway, to do this you would have to set up a parallel production 
> >> environment in order that it correctly mimics your real environment. 
> > 
> > 
> > Exactly!  We have this.  I just wondered if there was a "rails/ruby way" 
> of 
> > writing and running performance tests against this environment.  The 
> > scaffolding builds a tests/performance directory so I assumed there was. 
>
> I see from the guide section 1.7 that for performance test environment 
> is close to the production environment.  Munch munch. 
>
> So to get back to your original question this might be helpful, though 
> I have not tried it myself.  It is a bit old so may need tweaking for 
> Rails 3.  Does anyone else have suggestions? 
> http://m.onkey.org/running-rails-performance-tests-on-real-data 
>

Aha, thanks for this link.  That helps a lot. 

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Re: [Rails] Run performance tests without dumping database

[Andy Chambers]

On Thursday, July 12, 2012 3:03:25 AM UTC-4, Colin Law wrote:
>
> On 11 July 2012 01:39, Andy Chambers > wrote: 
> > Hi, 
> > 
> > I'm trying to build a simple performance test on a rails 3 app that 
> operates 
> > on a large database (~150GB).  We copy production data to our dev/test 
> setup 
> > every night so that we have a realistic environment for development. 
> > 
> > I followed the guide on creating a test and tried to run it using 
> > 
> > $ rake test:benchmark 
> > 
> > Unbelievably, this tried to drop my test database!!!  Fortunately it 
> didn't 
> > have permission to do this and failed. 
> > Is there a way to skip this step and 
> > just run the test against the DB as it exists already.  From the guide, 
> it 
> > seems like most rails apps have their test data in yaml files or 
> something 
> > but I don't understand how this would scale to a production environment. 
> > Code that works well on 100 or so database rows is not necessarily going 
> to 
> > work well on millions of rows. 
>
> The test environment is designed for testing that stuff works, not for 
> performance testing.  


If this is true, someone should tell that to the official guide maintainers

http://guides.rubyonrails.org/performance_testing.html

The test environment is not appropriate for performance testing 
> anyway, to do this you would have to set up a parallel production 
> environment in order that it correctly mimics your real environment. 
>

Exactly!  We have this.  I just wondered if there was a "rails/ruby way" of 
writing and running performance tests against this environment.  The 
scaffolding builds a tests/performance directory so I assumed there was.


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[Rails] Run performance tests without dumping database

[Andy Chambers]

Hi,

I'm trying to build a simple performance test on a rails 3 app that 
operates on a large database (~150GB).  We copy production data to our 
dev/test setup every night so that we have a realistic environment for 
development.

I followed the guide on creating a test and tried to run it using

$ rake test:benchmark

Unbelievably, this tried to drop my test database!!!  Fortunately it didn't 
have permission to do this and failed.  Is there a way to skip this step 
and just run the test against the DB as it exists already.  From the guide, 
it seems like most rails apps have their test data in yaml files or 
something but I don't understand how this would scale to a production 
environment.  Code that works well on 100 or so database rows is not 
necessarily going to work well on millions of rows.

Feel free to point me in the direction of relevant documentation and tell 
me to RTFM.

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[Rails] Models in sub-folders in Rails 3

[Andy Joel]

I have a Rails 2 project in which models are in sub-folders, but not in
a name space

app/models/sub_folder/posts.rb

class Post < ActiveRecord::Base
end

The controllers are also in sub-folders, but are name spaced (views also
in a corresponding sub_folder).

app/controllers/sub_folder/posts_controller.rb

class SubFolder::PostsController < ApplicationController
end

This works fine, but I want to move on to Rails 3, and it all falls
apart...

In application.rb I have

config.autoload_paths += Dir["#{config.root}/app/models/**/"]

So Rails should be able to find the models. However running tests (which
are subfoldered in an analogous way), I get

LoadError: Expected R:/test3/app/models/sub_folder/post.rb to define
SubFolder::Post

So okay, suppose I name-space my models? Now I get:

LoadError: Expected R:/test3/app/models/sub_folder/post.rb to define
Post

Taking the model out of it sub-folder does allow the tests to pass, but
my real project has over 30 models, and I really do want them to be
structured somehow.

Running on Rails version 3.2.2, with Ruby 1.9.2, on JRuby 1.6.7 by the
way, and all the above are from a simple test project that I created
just for this purpose; no custom code except as noted above. I have
found several web pages about this issue, but they just indicate the
config.autoload_paths bit should solve the problem; am I missing
something simple here?

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[Rails] Request for Advice: "insert-only" ordering schema

[Andy S]

Hi,

I really like the "insert-only" ordering model described by Johnson
in
 
http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/b8785791f46dd091/ec1a4f6e5a38a60c?lnk=gst&q=order+schema#ec1a4f6e5a38a60c
and would like your advice on how to model reserved inventory and
updates that results in a refund or extra charge. Please see our
"insert-only" schema below.

Summary of "insert-only" approach: The polyphasic timeline or "insert-
only" approach, in which rows in the tables are only ever inserted,
never deleted or updated (except for the inactivated_at  column).
This is accomplished by keeping "created_at" and "inactivated_at"
columns on every table.  The appearance and business effect of an
update is accomplished by inactivating the existing row and creating a
new row. The appearance and business effect of deleting a row is
accomplished by inactivating the row.  Rows that are currently active
are readily identified by "inactivated_at is null" in the sql.

We model previous charges in a 'transaction_amount' field in the
orders table. A new transaction amount represents the extra charge
necessary to pay for the order

  order.transaction_amount = order.price -
sum_all(inactivated_order.transaction_amount)

If order.transaction_amount is '< 0' it's a refund and if it's '> 0'
it's an extra charge. Please let us know if you have any better ideas.

I'd also like your advice on how to model reserved inventory. When the
user initiated an order we reserve the inventory for up to 30 minutes.
Inventory is currently reserved by setting a 'order.completed' flag to
false, and we inactivate an order if it is not completed within 30
minutes. Another idea is to create a new table Reserved that has_one
reserved Order. When the order is processed or time runs out the Order
referenced by Reserved is inactivated.

Please let me know what your advice is.

Thank you in advance.

Best,
Andy


ActiveRecord::Schema.define(:version => 20120213011540) do

  create_table "line_items", :force => true do |t|
t.string   "product_id", :null => false
t.string   "order_id",   :null => false
t.integer  "quantity",   :null => false
t.integer  "price",  :null => false
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
t.datetime "inactivated_at"
  end

  create_table "orders", :force => true do |t|
t.string   "space_id",  :null => false
t.string   "ip_address"
t.boolean  "accept_eula",:default => false
t.string   "email"
t.text "address"
t.string   "pay_type"
t.boolean  "completed",  :default => false, :null => false
t.integer  "total_price",   :null => false
t.datetime "created_at",:null => false
t.datetime "updated_at",:null => false
t.boolean  "attend_event"
t.text "comment"
t.datetime "inactivated_at"
t.integer  "transaction_amount"
  end

  create_table "products", :force => true do |t|
t.string   "title"
t.string   "description"
t.integer  "price", :null => false
t.string   "currency",  :null => false
t.string   "event_id"
t.integer  "max_spots", :null => false
t.integer  "taken_spots",   :null => false
t.integer  "spots_req", :null => false
t.integer  "max_spots_per", :null => false
t.datetime "created_at",:null => false
t.datetime "updated_at",:null => false
  end

end


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Re: [Rails] Re: Simple ActiveRecord serialise problem

[Andy Jeffries]

I've also just tried upgrading JSON to 1.6.0 (as that's the version that seems 
to be installed if I do gem install json), same problem.

Cheers,


Andy

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Re: [Rails] Re: Simple ActiveRecord serialise problem

[Andy Jeffries]

> I was basing it on this article (as well as a stack overflow answer) that you 
> can provide a custom serializer in Rails 3.1:
>  
> http://edgerails.info/articles/what-s-new-in-edge-rails/2011/03/09/custom-activerecord-attribute-serialization/index.html
>  
> JSON provides a dump and load method on the class so it should be acceptable 
> as the serializer.
>  
> Is this article incorrect or my understanding of it?
Having just had a read of ActiveRecord::Base, I still can't see how I go wrong…

Base#serialize (line 557 of base.rb in ActiveRecord 3.1.0)

if the object supplied as the second argument responds to :load and :dump 
(which JSON does), then it uses that object, if not it wraps it in a YAMLColumn 
and sets the entry in serialized_attributes to that object.  Then in:

Base#arel_attributes_values (line 1963 of base.rb in ActiveRecord 3.1.0)

if there is an entry in serialized_attributes for a given attribute name (with 
a value put in to the coder variable) it calls coder.dump with the attribute 
value.

So, I can't understand why JSON wouldn't work as a second parameter...

Cheers,


Andy

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Re: [Rails] Re: Simple ActiveRecord serialise problem

[Andy Jeffries]

> the second argument to serialise is used to say that you always want
> the serialised object to be of a certain class (e.g. Hash, an
> application specific class etc.). I'm not sure what you meant by
> passing JSON as that argument but I suspect that it isn't doing what
> you think it is.
I was basing it on this article (as well as a stack overflow answer) that you 
can provide a custom serializer in Rails 3.1:

http://edgerails.info/articles/what-s-new-in-edge-rails/2011/03/09/custom-activerecord-attribute-serialization/index.html

JSON provides a dump and load method on the class so it should be acceptable as 
the serializer.

Is this article incorrect or my understanding of it?

Cheers,


Andy

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[Rails] Simple ActiveRecord serialise problem

[Andy Jeffries]

When I create a table with the following SQL:

# create table foos (id SERIAL, content VARCHAR(255));

And define a class as follows:

class Foo < ActiveRecord::Base
  serialize :content, JSON
end

Creating a new instance of the class gives an error:

> f = Foo.new
NoMethodError: undefined method `read' for nil:NilClass
from 
/Users/andy/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.0/lib/active_support/whiny_nil.rb:48:in
 `method_missing'
 from 
/Users/andy/Code/FakePlatform/vendor/gems/Darwin/gems/json-1.4.6/lib/json/common.rb:286:in
 `load'
 from 
/Users/andy/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/base.rb:1938:in
 `block in set_serialized_attributes'

Does anyone have any ideas how to fix this?

It should work (it's such a simple case).

Cheers,


Andy

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[Rails] problem with catch all route catching redirects to external websites

[Andy S]

We use a catch-all route in SomeController that incorrectly catch
redirects to external websites when we use the 'redirect_to' method.
Any help on how to avoid that is greatly appreciated.

This is our routes:

resources :some_controller, :path => '/' do
collection do
get 'go_to_external'
end
end


This is an action that does a redirect to an external website:

class SomeController < ApplicationController


  def go_to_external
#should not be caught by the some_controller route, but is caught by
it.
redirect_to "https://example.com";, :status => :found

  end
end


Best,
Andy

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[Rails] Fwd: ROR Developer positions in Hamburg - Can anyone help??

[Andy Clayton]

Hey,

In reference to my last message I should have included the following
information.

We are only looking for developers that are willing to become a permanent
employee of our business and work from our HQ in Hamburg. Unfortunately at
this time we are not considering any offshore options or remote working. The
right candidate doesn't need to speak German as our company language is
English so fluency in English is the only language requirement.

Many thanks
Andy

-- Forwarded message --
From: Andy Clayton 
Date: Wed, Jun 1, 2011 at 2:50 PM
Subject: ROR Developer positions in Hamburg - Can anyone help??
To: rubyonrails-talk@googlegroups.com


Hi,



I’m currently looking for some Ruby on Rails developers in Hamburg, Germany
to implement new future additions to our current platform and to maintain
and improve the existing code base.



If you are, passionate about writing Rails code, know other programming
languages but you’re crazy about Ruby, like to stay on the cutting edge of
web application development, into agile methodologies, enjoy working in
teams with a focus on sharing knowledge with other experts and are
interested in a new job role, then please contact me. I truly have some good
positions available right now and would love to hear from any ROR developers
who are seeking a new challenge.



I look forward to hearing from you.





Kind Regards

Andy Clayton

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[Rails] ROR Developer positions in Hamburg - Can anyone help??

[Andy Clayton]

Hi,



I’m currently looking for some Ruby on Rails developers in Hamburg, Germany
to implement new future additions to our current platform and to maintain
and improve the existing code base.



If you are, passionate about writing Rails code, know other programming
languages but you’re crazy about Ruby, like to stay on the cutting edge of
web application development, into agile methodologies, enjoy working in
teams with a focus on sharing knowledge with other experts and are
interested in a new job role, then please contact me. I truly have some good
positions available right now and would love to hear from any ROR developers
who are seeking a new challenge.



I look forward to hearing from you.





Kind Regards

Andy Clayton

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[Rails] Looking for a webmaster interested in real estate/advertising to work on a currently developing site

[Andrew (Andy) Chang]

I'm looking for an freelancing webmaster who can help me with an
extremely interesting advertising start-up and work with 3 other
programmers to make a site for a start-up.

We are using Ruby on Rails for this website.

Email achang...@gmail.com if interested.

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[Rails] Integrating the fb_graph or koala gem with devise+mongoid+omniauth in rails 3

[Andy S]

I need Facebook API integration in my rails application, but I can't
figure out how to store the Facebook access token from Omniauth so
that it can be reused later by a Facebook API gem. The Facebook API
gems I am considering is fb_graph or koala (don't really care which),
but I am open to other solutions if there are better alternatives.

A question on Stackoverflow provides a solution which the questioner
(and I) were not able to get to work:
  
http://stackoverflow.com/questions/4010915/does-omniauth-provide-simple-hooks-to-the-facebook-graph-api

The base code I want to integrate fb_graph or koala into comes from
the official devise example page:
  https://github.com/plataformatec/devise/wiki/Example-Applications
The base I am using integrates devise+mongoid+omniauth:
   https://github.com/fertapric/rails3-mongoid-devise-omniauth.git

Any tips on how to integrate fb_graph or koala (or any other facebook
API connection) with this devise+mongoid+omniauth base would be
greatly appreciated.

Best,
Andy

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[Rails] Can join tables be polymorphic?

[Andy Tolle]

For example:
Currently I have:
functions < functions_competencies < competencies
exams  < exam_competencies  < competencies

I'd like to dry up "functions_competencies" and "exam_competencies" by
using a polymorphic association, by let's say 'attached_competencies':

functions  < attached_competencies < competencies
exams  < attached_competencies < competencies
evaluations < attached_competencies < competencies
...

Note that these are join tables.

Is this possible?

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[Rails] Re: any gems to process PowerPoint files?

[Andy]

Unfortunately that's not going to work either.

I really need to process these either in my Rails app or through a 3rd
party service.

Anyone know of any SaaS or web services that would do this?

Thanks


On Nov 29, 11:55 am, Walter Lee Davis  wrote:
> On Nov 29, 2010, at 10:49 AM, Andy wrote:
>
> > My client has PowerPoint files and we need to process them into images
> > and text.
>
> > I was hoping there was something out there that could do this
> > directly.
>
> > If anyone else has suggestions, please post.
>
> > Thanks
>
> Not on the server, but PowerPoint itself can output a Web site from  
> each file using File / Export. Something for a temp at your client's  
> office to do all day long.
>
> Walter
>
>
>
>
>
>
>
> > On Nov 26, 2:15 pm, gezope  wrote:
> >> Hi,
>
> >> I highly reccomend you Prezihttp://prezi.com/
> >> and not any MS product, since they are not free, and not open-source,
> >> so if any company makes anything which can use it - it still mean  
> >> that
> >> you or some will pay for it in the end. And mostly PowerPoint is
> >> really out of date.
> >> cheers
> >> Zoltán
>
> >> On nov. 23, 14:00, DBL Systems  wrote:
>
> >>> not sure if this will help but google docs just started providing  
> >>> 3rd
> >>> party publishing/conversion from MS Office to google docs.  perhaps
> >>> this can get you part of the way by converting and using the gdata  
> >>> gem
>
> >>>http://code.google.com/apis/gdata/articles/gdata_on_rails.html
>
> >>> b
>
> >>> On Nov 22, 10:31 pm, Andy  wrote:
>
> >>>> Does anyone know of any gems or plugins that can take a  
> >>>> PowerPoint and
> >>>> create images out of every slide and also access the text in each
> >>>> slide?
>
> > --
> > You received this message because you are subscribed to the Google  
> > Groups "Ruby on Rails: Talk" group.
> > To post to this group, send email to rubyonrails-
> > t...@googlegroups.com.
> > To unsubscribe from this group, send email to 
> > rubyonrails-talk+unsubscr...@googlegroups.com
> > .
> > For more options, visit this group 
> > athttp://groups.google.com/group/rubyonrails-talk?hl=en
> > .

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[Rails] Re: Error installing rails 3, get error: mail requires i18n (~> 0.4.1, runtime)

[Andy]

*I also uninstalled i18n 0.5.0 leaving i18n 0.4.2 to get everything
working...

Andy

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[Rails] Re: Error installing rails 3, get error: mail requires i18n (~> 0.4.1, runtime)

[Andy]

Same just happened to me on Ubuntu 10.04 using RVM.

Anyways, my theory at the moment is they just released i18n 0.5.0 and
gem install rails installed 0.5.0 and mail gem requires i18n version
0.4.x.


Here's the entire painful process of getting it working.

abarrin...@andys-dev-box:~$ gem install rails
ERROR:  Error installing rails:
mail requires i18n (~> 0.4.1, runtime)
abarrin...@andys-dev-box:~$ gem install i18n
Successfully installed i18n-0.5.0
1 gem installed
Installing ri documentation for i18n-0.5.0...
Installing RDoc documentation for i18n-0.5.0...
abarrin...@andys-dev-box:~$ gem install rails
ERROR:  Error installing rails:
mail requires i18n (~> 0.4.1, runtime)
abarrin...@andys-dev-box:~$ gem list

*** LOCAL GEMS ***

abstract (1.0.0)
actionpack (3.0.3)
activemodel (3.0.3)
activerecord (3.0.3)
activeresource (3.0.3)
activesupport (3.0.3)
arel (2.0.4)
builder (2.1.2)
erubis (2.6.6)
i18n (0.5.0)
mime-types (1.16)
polyglot (0.3.1)
rack (1.2.1)
rack-mount (0.6.13)
rack-test (0.5.6)
rake (0.8.7)
treetop (1.4.9)
tzinfo (0.3.23)
abarrin...@andys-dev-box:~$ gem install mail
Successfully installed i18n-0.4.2
Successfully installed mail-2.2.10
2 gems installed
Installing ri documentation for i18n-0.4.2...
Installing ri documentation for mail-2.2.10...
Installing RDoc documentation for i18n-0.4.2...
Installing RDoc documentation for mail-2.2.10...
abarrin...@andys-dev-box:~$ gem install rails -v 3.0.3
Successfully installed actionmailer-3.0.3
Successfully installed thor-0.14.6
Successfully installed railties-3.0.3
Successfully installed bundler-1.0.7
Successfully installed rails-3.0.3
5 gems installed
Installing ri documentation for actionmailer-3.0.3...
Installing ri documentation for thor-0.14.6...
Installing ri documentation for railties-3.0.3...
Installing ri documentation for bundler-1.0.7...
Installing ri documentation for rails-3.0.3...
Installing RDoc documentation for actionmailer-3.0.3...
Installing RDoc documentation for thor-0.14.6...
Installing RDoc documentation for railties-3.0.3...
Installing RDoc documentation for bundler-1.0.7...
Installing RDoc documentation for rails-3.0.3...


abarrin...@andys-dev-box:~$ gem list

*** LOCAL GEMS ***

abstract (1.0.0)
actionmailer (3.0.3)
actionpack (3.0.3)
activemodel (3.0.3)
activerecord (3.0.3)
activeresource (3.0.3)
activesupport (3.0.3)
arel (2.0.4)
builder (2.1.2)
bundler (1.0.7)
erubis (2.6.6)
i18n (0.5.0, 0.4.2)
mail (2.2.10)
mime-types (1.16)
polyglot (0.3.1)
rack (1.2.1)
rack-mount (0.6.13)
rack-test (0.5.6)
rails (3.0.3)
railties (3.0.3)
rake (0.8.7)
thor (0.14.6)
treetop (1.4.9)
tzinfo (0.3.23)




On Nov 29, 11:54 am, Mike Moretti  wrote:
> Hi folks:
>
> I have Windows XP Pro SP3. I have installed ruby 1.9.2p0   (2010-08-18
> [i386-mingw32]). I’m trying to install rails 3 by entering  “gem install
> rails” on command prompt window (i.e. DOS window). Halfway through
> installation I get the following:
>
> ERROR: Error installing rails:
>        mail requires i18n (~> 0.4.1, runtime)
>
> Can anyone help please?
>
> Mike
>
> --
> Posted viahttp://www.ruby-forum.com/.

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[Rails] Re: any gems to process PowerPoint files?

[Andy]

My client has PowerPoint files and we need to process them into images
and text.

I was hoping there was something out there that could do this
directly.

If anyone else has suggestions, please post.

Thanks

On Nov 26, 2:15 pm, gezope  wrote:
> Hi,
>
> I highly reccomend you Prezihttp://prezi.com/
> and not any MS product, since they are not free, and not open-source,
> so if any company makes anything which can use it - it still mean that
> you or some will pay for it in the end. And mostly PowerPoint is
> really out of date.
> cheers
> Zoltán
>
> On nov. 23, 14:00, DBL Systems  wrote:
>
>
>
>
>
>
>
> > not sure if this will help but google docs just started providing 3rd
> > party publishing/conversion from MS Office to google docs.  perhaps
> > this can get you part of the way by converting and using the gdata gem
>
> >http://code.google.com/apis/gdata/articles/gdata_on_rails.html
>
> > b
>
> > On Nov 22, 10:31 pm, Andy  wrote:
>
> > > Does anyone know of any gems or plugins that can take a PowerPoint and
> > > create images out of every slide and also access the text in each
> > > slide?

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[Rails] any gems to process PowerPoint files?

[Andy]

Does anyone know of any gems or plugins that can take a PowerPoint and
create images out of every slide and also access the text in each
slide?

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[Rails] Overriding log_error in Rails3 not working

[Andy]

I have this in my application.rb:
 private
  def log_error(exception)
 super
 UserMailer.error_message(exception,
   clean_backtrace(exception),
   session.instance_variable_get("@data"),
   params,
   request.env
 ).deliver
  end


I'd like the errors emailed to me.

It doesn't seem to be calling that "log_error" at all.

Is this done some other way in Rails3?

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[Rails] What's your Real World Rails 3 performance like?

[Andy]

Can any of you share your upgrade stories from Rails 2.x to 3 and how
it impacted performance for better or worse?

Include details like web server, passenger/mongrel, rails version etc.

We have a rails project that we are looking to upgrade to Rails 3 but
just wanted to know from a performance perspective what the community
was experiencing.

Thanks,
Andy

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[Rails] Re: ERROR: Failed to build gem native extension (win server 2003/2008 ruby 1.9.1/1.8.7)

[Andy Ho]

try this:
gem install mongrel_service --platform i386-mswin32
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[Rails] Re: Simple Captcha - files still in "/tmp" directory and not displaying

[Andy]

Found the solution:
https://rails.lighthouseapp.com/projects/8994/tickets/4063-rails-30-beta1-send_file-with-0-byte


On Sep 9, 6:59 pm, Andy  wrote:
> I'm starting to narrow down the problem.
>
> The files are being created in the "/tmp" folder.
>
> But when image.rb passes it up to simple_captcha_controller.rb, the
> files are coming through empty.
>
> The versions in "/tmp" are not empty files though.
>
> I'm using a CentOS server I configured myself (rather than a Rails
> host like EngineYard) so I'm guessing it's some sort of server
> issue.
>
> On Sep 9, 5:29 pm, Andy  wrote:
>
>
>
> > I'm trying to use the Rails3 Simple Captcha version from 
> > here:http://github.com/galetahub/simple-captcha
>
> > It's working 100% fine on my local environment.
>
> > In Production, I had to point the "convert" command to the correct
> > directory and then reinstall ImageMagick with the FreeType lib.
>
> > Now I'm not getting any errors in production.log but the images are
> > coming up as broken images.
>
> > Any ideas?

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[Rails] Re: Simple Captcha - files still in "/tmp" directory and not displaying

[Andy]

I'm starting to narrow down the problem.

The files are being created in the "/tmp" folder.

But when image.rb passes it up to simple_captcha_controller.rb, the
files are coming through empty.

The versions in "/tmp" are not empty files though.

I'm using a CentOS server I configured myself (rather than a Rails
host like EngineYard) so I'm guessing it's some sort of server
issue.




On Sep 9, 5:29 pm, Andy  wrote:
> I'm trying to use the Rails3 Simple Captcha version from 
> here:http://github.com/galetahub/simple-captcha
>
> It's working 100% fine on my local environment.
>
> In Production, I had to point the "convert" command to the correct
> directory and then reinstall ImageMagick with the FreeType lib.
>
> Now I'm not getting any errors in production.log but the images are
> coming up as broken images.
>
> Any ideas?

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[Rails] Simple Captcha - files still in "/tmp" directory and not displaying

[Andy]

I'm trying to use the Rails3 Simple Captcha version from here:
http://github.com/galetahub/simple-captcha

It's working 100% fine on my local environment.

In Production, I had to point the "convert" command to the correct
directory and then reinstall ImageMagick with the FreeType lib.

Now I'm not getting any errors in production.log but the images are
coming up as broken images.

Any ideas?

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[Rails] How can I do an onChange event with Rails3 and jQuery?

[Andy]

I'm using jQuery with Rails3.

I'd like to trigger some AJAX on the change of a SELECT element.

I've tried the old Prototype way:   {:onchange
=>remote_function(:update => "mytable", :url => "/xxx")}

I get a JS error:  "Ajax is not defined"

I assume it's trying to use Prototype and that's where the error comes
from.

I'd love to use Unobtrusive Javascript, but I don't want to submit the
WHOLE form.  I just want the ONCHANGE of a SELECT element to trigger
AJAX and update a specific piece of the page.

I can't find any documentation anywhere that describes how to do this.

Anyone know any resources or know how to do this?

Thanks,
Andy

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[Rails] Recommend a gem/plugin for autocomplete in Rails3 using jQuery?

[Andy]

Can anyone recommend a good gem or plugin for autocomplete in Rails 3
that only needs jQuery?

I need to search multiple fields and multiple objects and display them
in a clickable auto-complete list.

Would it be best to just build this myself?

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[Rails] Rails hosting in Canada?

[Andy]

Anyone have any recommendations for Rails hosting in Canada?  It needs
to be solid hosting, on the level of EngineYard and Blue Box Group.

Thanks

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[Rails] JOBS: ROR Dev needed in Texas

[Andy Kabbe]

ROR Developer opening in Texas.

Relocation expenses paid for.  Direct - permanent employment.
Opportunity to join an exceptional development team.  Exceptionl
benefits and training.   Flat organization model.   Desire energetic
opinions.  Agile environment.

ROR Dev will design and develop new automation platform; Ruby on
Rails.

Interested developers should email resume to andy.ka...@modis.com

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[Rails] zxcvbnm

[Jimmy Andy]

class LoginController < ApplicationController
   def addprod
  @category=Cattab1.find(:all)
  @product=Prodtab.find(:all)
  @i=0
  @checkvalue=""
   end

   def login
   @logincheck =Login.new
   @prodcheck=Prodtab.new
if(session[:login_id])
Login.update(session[:login_id],:user_status=>"0")
end
   end

   def login_create
   @login = Login.new(params[:login])
if request.get?
session[:login_id] = nil
else
puts 'logincretaee'
puts params[:login][:password]
params[:login][:password] =
Login.hashed_password(params[:login][:password])
puts params[:login][:password]
@logincheck =
Login.find_by_name_and_password(params[:login][:name],params[:login][:password])
if @logincheck == nil
#...@logincheck.save
flash[:error] ="Name/Password not matching"
redirect_to :controller=>'login', :action=>'login' and
return
else
session[:login_id] = @logincheck.id
Login.update(@logincheck.id,:user_status=>"1")
redirect_to :controller=>'prodtabs', :action=>'index'
and return
end
end
   end

   def category3
puts '*category3'
@categyid=request.raw_post
session[:category_i...@categyid.to_i
puts @categyid.to_i
@catlist=Cattab1.find_all_by_id(@categyid.to_i)
   end

   def category4
puts '*category4'
@productid=request.raw_post
puts @productid.to_i
@prodlist=Prodtab.find_all_by_id(@productid.to_i)
   end

   def prod1
puts '***prodids'
puts params[:product_id]
puts '*vijay'
@prodcheck1=params[:product_id]
@prodcheck=Prodtab.find_all_by_id(@prodcheck1)
@prodcheckcatid=Prodtab.find_all_by_cattab1_id(@prodcheck1)
@prodcheck.each do|p|
if p.cattab1_id==0
   Prodtab.update(p.id ,:cattab1_id=>session[:category_id])
flash[:success] ="Product is assigned successfully"
 else
flash[:error] ="#{p.pname} is already assigned"
redirect_to :controller=>'login', :action=>'addprod' and
return
end
#end
end
redirect_to:controller=>'login', :action=>'addprod'
end
end

views


  var txt1=new Array();
  var txt2=new Array();
  function compare1()
  {
  if(document.getElementById("login_name").value=="")
  {
  alert("Please enter the Login name");
  document.getElementById("login_name").focus();
  return false;
  }
  var checkStr = document.getElementById("login_name").value;
  if(checkStr.length<2 || checkStr.length>6)
  {
  alert("Login Name should be minimum two characters and maximum
Six characters");
  document.getElementById("login_name").value="";
  document.getElementById("login_name").focus();
  return false;
  }

  var checkOK =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  var checkStr1= document.getElementById("login_name").value;
  var checkStr2= document.getElementById("login_password").value;
  var allValid = true;
  var allValid1=true;
  for (i = 0; i < checkStr.length; i++)
  {
  ch = checkStr.charAt(i);
  for (j = 0; j < checkOK.length; j++)
  if (ch == checkOK.charAt(j))
  break;
  if (j == checkOK.length)
  {
  allValid = false; break;
  }
  }
  if (!allValid)
  {
  alert("Please enter only letter and numeric characters in the
\"Login Name\" field.");
  document.getElementById("login_name").focus();
  document.getElementById("login_name").value="";
  return false;
  }
  if(document.getElementById("login_password").value=="")
  {
  alert("Please enter the Login Password");
  document.getElementById("login_password").focus();
  return false;
  }
  if(checkStr2.length<6 || checkStr2.length>10)
  {
  alert("Password should be minimum six characters and maximum
Ten characters");
  document.getElementById("login_password").value="";
  document.getElementById("login_password").focus();
  return false;
  }
return true;
}






 LOGIN FORM
<%= flash[:error] %>

  
  <% form_tag({ :controller => "login", :action =>
"login_create"}, {:id=>"login", :name=>"login" ,:multipart => true}) do
%>

  Login ID 
  <%= text_field 'login','name' %>
  

Password 
  <%= password_field 'login','password' %>
  

  
   

  

  <% end %>




model

class Login < ActiveRecord::Base
validates_uniqueness_of :name


def self.hashed_passwo

Re: [Rails] Admin interface for Rails?

[Andy Jeffries]

It's a generator, but it comes up with quite nice 37 Signals style admin
interfaces.

http://github.com/andyjeffries/andy_admin

Cheers,


Andy

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On 1 August 2010 06:03, rodrigo3n  wrote:

> Hello folks, I am currently working on a project that has to deliver
> an admin interface like the Django's one, I wanna know if you know/
> recommend any gem or plugin for that.
>
> Cheers,
> Rodrigo Alves Vieira
>
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Re: [Rails] Rescuing Errors

[Andy Jeffries]

Hoptoad

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On 28 July 2010 11:26, Pale Horse  wrote:

> Ideally, what I need is a method of rescuing ALL errors that can occur
> on a site by sending those errors (including the time they occurred) to
> a specified address.
>
> What would you advise?
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Re: [Rails] Re: rails asset cache

[Andy Jeffries]

Sorry, no idea.

(just to let you know that you're not being ignored it's just likely that
no-one has an answer for you, this generally works fine for me).

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On 27 July 2010 05:49, Tom Mac  wrote:

> Hi
>   Could anybody please clarify my doubt?
>
> Thanks
>
>
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Re: [Rails] rails asset cache

[Andy Jeffries]

On 23 July 2010 10:52, Tom Mac  wrote:

> I have a of line code like
> <%= stylesheet_link_tag "styles",:cache => "cache/styles" %>
>
>And it produces source as
>
>  rel="stylesheet" type="text/css" />
>
>config.action_controller.perform_caching = true
>
> My concern is what is 1279620123 after question mark(?) above. If such a
> random number always appended,  whether caching in browser happens or
> not?Please give me a good idea
>

It's the timestamp when the file was last changed (or the last file if you
list multiple stylesheets in stylesheet_link_tag).

That way browsers can cache it long term and it will automatically change if
you change one of the files during a new deployment.

Cheers,


Andy

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Re: [Rails] Re: starting with RoR

[Andy Jeffries]

I wouldn't normally post silly little corrections/typos, but as the OP was a
newbie (and might play with it, type the code in and fail to get it all to
work):


> $ ./script generate scaffold User login:string password:string
> first_name:string last_name:string
>

Should be:

$ ./script/generate scaffold User login:string password:string
> first_name:string last_name:string
>

Cheers,


Andy

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Re: [Rails] starting with RoR

[Andy Jeffries]

>
> Why is mySQL not the typical default DB?
>

Because SQLite is easier to install/maintain on a developer's machine.  It's
easy enough to switch to MySQL when creating a project:

rails my_project -d mysql


> I'm used to building up tables by hand...I'm aware there is a faster way
> of doing it in RoR - should I be old fashioned and comfortable or plunge
> right in to the Ruby way?
>

Look in to ActiveRecord Migrations and "rake db:migrate".  When you say
"building up tables" if you mean initial data entry, look in to ActiveRecord
Seed data and "rake db:seed".


> Hosting companies? Can anyone recommend any cheap development servers,
> that we can all work remotely?
>

In the UK, I'd recommend Bytemark.co.uk - outside the UK, you'd need to give
more information on where you are :-)


> Prob inane questions - but my experience with RoR is zero!
>

I'm sure we'll all help you on here.  Providing you post detailed questions
(including any error messages, what you've tried etc) you're bound to get
helpful answers.

Cheers,


Andy

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Re: [Rails] Send picture from iPhone

[Andy Jeffries]

>
> The rails output shows:
> [paperclip] An error was received while processing:
> # pDBak1ufEeSHluZ8kAougU+++TI/-Tmp-/stream20100721-4816-1pbpnnn-0 is not
> recognized by the 'identify' command.>
>
> What is the best way to do this?
>

The normal cause of that problem in my experience (and I've had it a few
times) is that 'identify' isn't in the path for the Rails process.

The easiest solution is to go to the server and type "which identify" then
put the path in the config/environments/production.rb file (or whatever your
environment it):

Paperclip.options[:image_magick_path] = '/foo/bar/bin/'

Cheers,


Andy

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[Rails] Re: setup not invoked during unit testing

[Andy Joel]

Frederick Cheung wrote:
> On Jul 20, 3:57�pm, Andy Joel  wrote:
>>
>> test_setup does get invoked, so the file is being processed. I am
>> guessing that somewhere there is another setup method that takes
>> priority, but where would it be, and why does it take priority over this
>> one? My IDE recognises that this setup overrides the one in
>> ActiveSupport::TestCase.
>>
> 
> is it possible that another of your test cases is also called
> GlcTest ?
> 
> Fred

That was it. I had copy-and-pasted from GlcTest to create a new test 
class, and had forgotten to change the class name. Thanks for the help.
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[Rails] setup not invoked during unit testing

[Andy Joel]

I have a bunch of unit test files in a Rails project. One of them has
stopped using the setup method before each test, or even if I invoke it
in the test itself.

After commenting out most of it, here is what is left:

require 'test/test_helper'

class GlcTest < ActiveSupport::TestCase
  def setup
p '###'
  end

  def test_setup
p ''
setup
  end
end

The file I am testing is glc.rb, and that does get loaded. If I run the
test file, it does work normally; this is a problem when running the
test through rake (either via my IDE or at the command line).

test_setup does get invoked, so the file is being processed. I am
guessing that somewhere there is another setup method that takes
priority, but where would it be, and why does it take priority over this
one? My IDE recognises that this setup overrides the one in
ActiveSupport::TestCase.

There is no setup method defined in glc.rb, and as the problem is
isolated to this one class, I am mystified as to where this other setup
might be.

Any advice appreciated.

Using JRuby 1.5 on Windows, by the way.
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Re: [Rails] Re: Git on MAC OS X

[Andy Jeffries]

On 19 July 2010 16:38, Abder-Rahman Ali  wrote:

> I now added /usr/local/bin to my path as follows:
>
> export PATH=$PATH:/usr/local/bin
>
> http://www.how-to-linux.com/2010/04/how-to-add-usrlocalbin-to-your-path-on-centos/


Good job.


> But, when I run now: brew install git
>
> I get the following:
>
> -bash: /usr/local/bin/brew: /usr/bin/ruby: bad interpreter: No such file
> or directory
>

Wow!  That is weird.  Where is your Ruby?  On Mac OS X Ruby is available by
default at that location:

$ which ruby
/usr/bin/ruby

Try running which ruby in a Terminal.

Cheers,


Andy

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Re: [Rails] Re: Does Nginx with Passenger actually work?

[Andy Jeffries]

>
> Anyway, unless you are using your Mac as a server, why are you running
> Passenger on it in the first place?  Mongrel is perfectly suitable for
> development.
>

A lot of people:

1) Work on more than one site at a time (during a day)

2) Want it always available rather than having to remember to start the
server

3) Prefer to host as much as possible on the same technology (Apache,
Passenger, MySQL is much better than Mongrel/SQLite even if you develop on
Mac OS X and deploy on Linux).

I know I do (all of the above).

Cheers,


Andy

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Re: [Rails] Git on MAC OS X

[Andy Jeffries]

On 19 July 2010 15:46, Abder-Rahman Ali  wrote:

> I know that this question may not be here, but think that most of you
> using RoR deal with Git.
>
> I run a MAC OS X 10.5.8, and want to install Git running on my machine.
> But, I didn't find this version of my MAC OS X here: Hi,
>
> http://code.google.com/p/git-osx-installer/downloads/list
>
> Any ideas on getting Git working on my MAC?
>

Personally I install all my Linuxy software through Homebrew -
http://github.com/mxcl/homebrew - install homebrew using (from the github
page):

ruby -e "$(curl -fsS http://gist.github.com/raw/323731/install_homebrew.rb)"

Then you can install Git using:

brew install git


Cheers,



Andy

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Re: [Rails] :controller, how does Rails recognize them?

[Andy Jeffries]

>
> It mentions that we have the following in the "routes.rb" file:
>
> map.connect ':controller/:action/:id'
> map.connect ':controller/:action/:id.:format'
>
> Now, in completing the tutorial, we will add the following to
> "routes.rb":
>
> map.root :controller => "home"
>
> In the first two statements we have :controller, and in the last
> statement, we have a :controller pointing to a value.
>
> How does Rails determine that the first two statements point to a
> :controller other than the last statement?
>

Because it's mapping a URL pattern to a controller and action.  For example,
it means that:

http://www.example.com/users

Will go to the UsersController's index action (because index is the default
action) with no id (as nil is the default for a missing parameter at the
end).

http://www.example.com/users/show/1

Will map to the show actions of UsersController passing in a params[:id] of
1.

And, in the last statement, what are we exactly saying?
>

That the / (http://www.example.com/) should go to the HomeController class's
index action (as index is the default as above).

Cheers,


Andy

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Re: [Rails] Re: Re: Ruby on Rails template designs

[Andy Jeffries]

>
> > http://github.com/andyjeffries/andy_admin
>
> Thanks a lot.
>
> Does it give you the layouts to the pages?
>

It generates the stylesheets and layouts, styles a lot of the standard
classes and gives an amended form builder.


> Do you have an example of that?
>

I've been meaning to put together a screencast sometime on it, but to be
honest, it's very simple - just following the README should get you up and
running.  I won't get chance to do a screencast today, but I'll try to do it
this week if I get a chance.

Cheers,


Andy

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Re: [Rails] Re: Ruby on Rails template designs

[Andy Jeffries]

Or as another example:

http://github.com/andyjeffries/andy_admin

:-)

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On 18 July 2010 08:25, Abder-Rahman Ali  wrote:

> I think this is what I was looking for:
> http://github.com/pilu/web-app-theme
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Re: [Rails] Re: Added associations but don't see generated methods

[Andy Jeffries]

>
> >  Welcome to dynamic objects and classes :-)
> Thanks.  This restores my faith in Rails and enhances my appreciation
> of newsgroups, especially this one.
> Now I've got to put them to use!
>

Good luck.

Post back if you have any more problems.

Cheers,


Andy

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Re: [Rails] Re: Added associations but don't see generated methods

[Andy Jeffries]

>
> > what makes you think they aren't there ?
>
> I searched for them to no avail.  Shouldn't they be in the
> Expense model (app\models\expense.rb); or
> Expense controller (app\controllers\expenses_controller.rb?
>

No, they are dynamically defined and exist in memory only at runtime.
 Welcome to dynamic objects and classes :-)

Try using script/console to execute them.

Cheers,


Andy

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Re: [Rails] Effects of a humongous Controller on performance?

[Andy Jeffries]

>
> My thinking is that perhaps every time a page is rendered, a mongrel has
> to instantiate this controller and that marshalling this into RAM is
> very time-consuming.  Or does a controller get loaded into RAM at server
> startup and then the effect is not all that substantial for each page?
> Any ideas on this?
>

I'm not familiar with Mongrel-based hosting, but in Passenger classes are
cached in memory when loaded and instantiated from that.  The cost of
instantiating a new object shouldn't be that onerous (even if you have a
zillion methods) as it's only a pointer to the class at that point and an
instance data created during instantiation.

I am familiar with Ruby profiling and we are looking into that too.
>

Personally I'd recommend testing it on a Mac and using DTrace to get a
really good insight in to where it's spending it's time.  I've had a lot of
success with that in the past.

Cheers,


Andy

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Re: [Rails] Ruby - return true if any element in Array satisfies condition but false otherwise

[Andy Jeffries]

On 16 July 2010 13:51, Michael Pavling  wrote:

> On 16 July 2010 13:48, Ram  wrote:
> > Anyone know a function that loops through an array and returns true if
> > any one element satisfies the condition but false if none satisfy the
> > condition? And it should do this in one line. Something like
>
> You probably want ".detect"
> http://ruby-doc.org/core/classes/Enumerable.html#M003123
>
>any_bot_follower = followers.detect(false) { |f| f.bot? }
>

Or Enumerable#any?

http://apidock.com/ruby/Enumerable/any%3F

any_bot_follower = followers.any? { |f| f.bot? }

Cheers,


Andy

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Re: [Rails] Re: how to do url rewriting

[Andy Jeffries]

>
> What the purpose to hide the controller and action from URL?
>

To have nicer URLs?  For example:
http://www.facebook.com/andyjeffriesrather than
http://www.facebook.com/user/show/andyjeffries

It's quite a common request.

You can use the Apache mod_rewrite itself to make this change. You will
> need to know a little regex to make these changes.
>

You can, but given that Rails has native support for this in the Routing
subsystem I'd personally avoid putting it in the webserver (otherwise if you
want to move to something else, Nginx, Unicorn, whatever) you'd have to redo
the work.

Cheers,


Andy

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Re: [Rails] Re: named_scope multiple conditions

[Andy Jeffries]

>
> Thanks for the suggestion. However what did you mean specifically with
> your last comment?
>
> >> With anything like this any time you save when building up the
> conditions
> >> will be dwarfed by the time it takes to run the actual query
>

Putting words in Frederick's mouth, but it simply means that it's
ridiculously quick to build up the conditions object in Ruby compared to
actually executing the SQL on the database (and communicating the SQL and
response over the socket).

Cheers,


Andy

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Re: [Rails] how to do url rewriting

[Andy Jeffries]

Look at my response to your message "how can i hide controller and action
name in url".

There is a link there to a Rails guide which explains all about Routing.
 Routing is the part of rails that defined mapping a URL or URL pattern to a
controller and action.

At the moment you seem to be multiple posting the same question, phrased
slightly differently without reading responses.

Cheers,


Andy

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On 16 July 2010 11:53, Amit Jain  wrote:

> Hello,
>
> I am Amit. i am new to Rails. Please forgive me if ask any stupid
> questions.
>
> I have gone through this article. I am also suffering with the same
> problem.
>
> my website URL like this: http://127.0.0.0:3000/users/edit/30
>
> I don't want to show the controller:users and action: edit.
>
> I want to Re-Write (rewrite) the URL or i want to maintain the URL as
> http://127.0.0.0:3000/30/ only.(30 is a user id)
>
> I am not interested to show the controller(user) and action (edit)
>
>
> I total intention is to Hiding (HIDING) and rewriting (REWRING) the URL
> and mainly i want to hide the URL Extensions with controller and actions
> mainly..
>
> Can u help me on that Please.! sad
> --
> Posted via http://www.ruby-forum.com/.
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Re: [Rails] how can i hide controller and action name in url

[Andy Jeffries]

>
> I am new in ROR.
>
> I want to  hide controller and action name from url.
>
> exp. my current url:
>
> http://localhost:3000/triggers/index/amit123
>
> expected:
>
>  http://localhost:3000/amit123
>
> remove controller(trigger) and action(index) name from url.
>

http://guides.rubyonrails.org/routing.html

If you look at section 2.3 of that document, it shows how to map '/login' to
what would be '/sessions/new'.

Cheers,


Andy

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Re: [Rails] Is TDD really followed in the industry ?

[Andy Jeffries]

>
> I am a rails beginners. I have created a couple of simple applications
> without following TDD.
>
> I have a question - Do good programmers really follow TDD strictly ? I
> mean.. Do they follow {  1. Write Test  2. Write Code 3. Refactor  }
> cycle ?
>
> Is Writing tests before Implentation code really significate beyond
> these TDD books ??
>

Absolutely!  It's a matter of habit to get in to, but once you do...

I much prefer developing TDD.  It's not always easy (if you're taking over
an existing codebase, etc) but if you have the chance go for it - you'll
find bugs much earlier in the process which is ALWAYS a good thing :-)

A lot of companies using Rails are doing things in a very agile/Agile way -
automated testing is a key part of that, and it's always better to test
first.

I would say though, that I much prefer feature tests using Cucumber to old
Test::Unit tests.

Cheers,


Andy

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Re: [Rails] on

[Andy Jeffries]

Good catch Hassan

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Re: [Rails] on

[Andy Jeffries]

>
> this his the generated code from my haml code
>
> 
> Anglais option>
> Français
> Allemand
> 
>
> but I get a JS error
>
> this.form is undefined
>
> what did I missed ...
>

The onchange event is on the  tag, so "this" is a form and doesn't
have a ".form" method.  Try doing:

http://groups.google.com/group/rubyonrails-talk?hl=en.

Re: [Rails] Re: Gentoo for Rails?

[Andy Jeffries]

>
> Please don't make it a flame war about linux distros.
> To the OP, I really haven't heard about any Gentoo user in the rails
> community so far, if I have to say there's a predminant OS in the
> rails community that would be Mac OS. (And I don't know why either)
>

As a Mac OS X user I don't particularly care about which distro to use (so I
had no intention of making it a flame war), I was just trying to point out
that it's not that hard :-)

Cheers,


Andy

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Re: [Rails] Elegant Registration / Log in fix

[Andy Jeffries]

I don't use Resftul_authentication, but without knowing the details of
it personally
I'd use a before_filter in ApplicationController (or SignupController and
LoginController) to set params[:email] (or whatever) to the shorter email
(gsub to replace the long one with the short one).

There may be a better way with Restful_authentication and you'll need to
find out the param names you need to change the values for, but that may
point you in a direction to get it working...

Cheers,


Andy

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On 9 July 2010 14:44, DanC  wrote:

> Hi,
>
> I have an app which allows users to register using two different email
> address suffixes only which identifies them as being from a certain
> organisation.
>
> Let's call them @abcd.co.uk and @abcdefg.co.uk
>
> The shorter version is just a contraction of the longer version and
> are interchangeable for the users in their day to day email activity.
> The problem is that some people register with the long form and then
> try and log in using the short form.
>
> This causes a headache for the admin who gets unnecessary emails.
>
> What is the most Rails way to deal with this at log in and catch the
> users error automatically but still allowing log in? i.e. make the app
> insensitive to which email gets used for login / registration etc.
>
> The app uses Resftul_authentication plugin
>
> Thanks,
>
> Dan
>
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Re: [Rails] [Rails3] Issue in modifying locale and redisplaying page

[Andy Jeffries]

On 8 July 2010 19:39, Erwin  wrote:

> In a test app, I have a drop-down selection to change the language of
> the site.
> I use an Ajax request to an action in which the locale is changed, and
> the it's redirected to the home page
> unfortunately, the locale seems to be changed but the home page
> doesn't reflect the new language ..
>

That doesn't surprise me...


> application_controller.rb
> ..  before_filter :set_locale
>  def set_locale
>I18n.locale = params[:locale]
>  end
>

This filter will execute on your Ajax action (as you have a params[:locale])
but on your redirect it's a fresh request without that parameter so it will
fallback to default.

I'd imagine you want to store params[:locale] in the session[] or cookie[]
arrays and then use that value if set.

Also, remember the browser will normally send a preferred language in the
headers (Accept-language) so you can use that by default. I can't remember
if I18n.locale uses that (or just the system locale).

Finally, your default_url_options is only used when generating urls for
links using url_for and related functions - it doesn't set it as a default
parameter on incoming request.

Cheers,


Andy

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Re: [Rails] Re: Gentoo for Rails?

[Andy Jeffries]

On 9 July 2010 00:32, Gerardo Gonzalez Cruz  wrote:

> I Work rails on my beauty Gentoo System, i find hard install rails over
> Ubuntu because you need know each package to install :-(, on Gentoo is easy.


Really?

apt-get install ruby1.8 ruby1.8-dev rubygems
gem update --system
gem install rails passenger

Configure Passenger as normal.

What's hard?

Cheers,


Andy

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Re: [Rails] Kind of object

[Andy Jeffries]

$ irb
> class MyHash < Hash ; end
 => nil
> h = MyHash.new
 => {}
> h.is_a? Hash
 => true

Cheers,


Andy

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On 9 July 2010 08:52, Hemant Bhargava  wrote:

> Hello All,
>
> I want to know that is there anything in ruby by which i can know that
> which kind of object is this..? Something like is_object? :)
>
> I mean.. lets suppose i have two objects of Model ABC and Model DEF..
> then i want to execute some conditions based upon the type of objects.
>
> Thanks in advance.
> --
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Re: [Rails] Paypal Integration

[Andy Jeffries]

I'd recommend starting here...

Episode 141: PayPal Basics<http://railscasts.com/episodes/141-paypal-basics>

Cheers,


Andy

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On 8 July 2010 11:57, debadatta  wrote:

> Hi all I want to integrate Paypal in my rails application .. How to do
> it please give me some idea for IPN.
>
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Re: [Rails] Re: How can I hide my Ruby code?

[Andy Jeffries]

On 7 July 2010 01:25, Skip Levens  wrote:

> Props to Andy's solution - thats pretty awesome... hopefully not
> everyone needs that!
>

Thanks Skip and I agree with your hope.

There are so many weird things I've done on this project, it's been a
great/interesting experience...

Cheers,


Andy

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Re: [Rails] Re: How can I hide my Ruby code?

[Andy Jeffries]

>
> Interesting solution, but also not secure. Anybody who has root can
> read out your running processes' memory spaces and either (a) grab the
> key and yer pwned or (b) grab the bytecodes, decompile and yer pwned.
>

Yep.  Completely agree.  They weren't planning on stopping crackers, but
sysadmins that "knew some ruby".


> Add to that bonus nasties like directly frobbing the core of a running
> VPS instance from the hypervisor, and you're back in security hell
> again.
>

They're not using VPS/hypervisors.

Cheers,


Andy

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Re: [Rails] Re: Re: Re: How can I hide my Ruby code?

[Andy Jeffries]

>
> >> Or if there is any way so that I can encrypt my code
> >> without interrupting the execution of the application.
>
> If your client is determined to access your code even an encryption of
> the Ruby source code will not be sufficient. In order for MRI to
> interpret Ruby it must be decrypted. If the client has full access to
> the system then this means that they also have access to the encryption
> keys.
>
> This is the same issue that makes decrypting DVDs possible. The keys
> must be available to the system performing the decryption. Now maybe
> doing this will discourage a client from making the attempt, but if they
> are determined then there's nothing stopping them from hiring someone to
> "crack" your encryption. But, as I said it's not really cracking it
> since the encryption keys exist in a location where the client has
> access.
>

Indeed, finding them in memory.  I believe though that the requirement is to
stop casual looking/tampering by the company's sysadmins rather than to stop
a dedicated expert cracker.

Cheers,


Andy

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Re: [Rails] Re: Re: How can I hide my Ruby code?

[Andy Jeffries]

>
> > We're developing the site but the day to day running is down the client
> (but
> > they have lots of power from various sources, redundancy and sysadmins to
> > type the password back in).
>
> Is the client trying to keep the code hidden from his own sysadmins or
> are you trying to hide it from the client?
>

The first option :-)

Cheers,


Andy

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Re: [Rails] Re: Re: How can I hide my Ruby code?

[Andy Jeffries]

On 6 July 2010 11:31, Michael Pavling  wrote:

> On 6 July 2010 11:19, Andy Jeffries  wrote:
> > You can do this (I've had to do it for a client) but it's not simple
> > 
>
> Very interesting approach. Will file that for future reference.
>

I hope you never need it :-)


> > The last step, if you're using Passenger ensure that the last child is
> never
> > killed off (if it is, it will lose the decryption key which is now only
> in
> > memory).  I can't remember the setting but there's a timeout setting
> which
> > you can set to zero so the last child never dies.
>
> Hope you've got good UPS and redundancy too (and a well-negotiated
> call-out fee to re-encrypt everything if the YTS boy unplugs the power
> :-)


We're developing the site but the day to day running is down the client (but
they have lots of power from various sources, redundancy and sysadmins to
type the password back in).

Cheers,


Andy

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Re: [Rails] Re: Re: How can I hide my Ruby code?

[Andy Jeffries]

On 6 July 2010 10:34, Sumanta Das  wrote:

> Or if there is any way so that I can encrypt my code
> without interrupting the execution of the application.


You can do this (I've had to do it for a client) but it's not simple and I
can't share my solution's code.  However, you basically go along the lines
that you have a class responsible for decrypting/encrypting code (I used
Base64 encoded AES).  You then have Rake tasks that go through all Ruby (I
did YAML too as YAML files are executed as ERB first) files, encrypt the
content and replace the file contents with contents like this:

require 'config_decryptor'
eval ConfigDecryptor.decrypt(...ENCRYPTED_CONTENT_HERE...)

Your config_decryptor.rb file has to be in the load path - I handled this by
requiring the full path in a config/preinitializer.rb file.

The eval is done once as the Ruby class files are cached in memory during
production mode.

The next problem is getting the key in to Ruby.  I did this by having a Rake
task that puts it in to a specific named file in /tmp which is then read by
my class (during a call in preinitializer.rb) and deleted.  It's not ideal,
but it works for my purpose and would also work for yours.

The last step, if you're using Passenger ensure that the last child is never
killed off (if it is, it will lose the decryption key which is now only in
memory).  I can't remember the setting but there's a timeout setting which
you can set to zero so the last child never dies.

I would however, recommend against doing this - server security and not
giving out the username/password is far and away the best solution.  I work
in a specific industry in a country with a lot of security requirements so
had no choice - but it's a solution and something I wished I never had to
write ;-)

Cheers,


Andy

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Re: [Rails] problem finding find current page

[Andy Jeffries]

On 29 June 2010 11:00, Neil Bye  wrote:

> I have this bit of code in my email.controller
>
> user = @current_user
> story = @current_story
> recipient = story.user
>
> It doesn't work because @current_story isn't defined. How can I find the
> current page to make this work?


You haven't given anywhere enough detail for us to help you.

@current_story - what are you expecting this variable to contain?  Saying
"the current page" won't help.  Do you mean the current URL
(@request.request_uri)?  The current Page object (in which case you must
have found the Page object using some code, assign that to @current_story.
 A variable from the session?  @current_story = session[:current_story].

We need a lot more information to be able to help.  @current_story is an
instance variable, but there's no information on what you're expecting it to
magically contain.

Cheers,


Andy

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Re: [Rails] (JOBS) Junior Rails Developer, London, UK

[Andy Jeffries]

We're actually looking for currently UK located developers.

Thanks anyway,


Andy

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On 26 June 2010 08:21, ratnamraj varasala  wrote:

> Hai Andy,
>
> This is Raju from india im Ruby on Rails Developer and as well as System
> Administrator also from past two years, i have work experience in ROR 1/2
> years now im deal both ROR development and System Admin.
>
> Andy i have a doubt, im clear about your offer, i.e., remote working or
> relocate can i know clear about your offer plz
>
> thanks & regards
>
> Raju
>
> On Fri, Jun 25, 2010 at 4:27 PM, Andy Jeffries wrote:
>
>> The company I'm contracting at is looking for:
>>
>> An enthusiastic, junior Ruby on Rails developer.  Maybe you've been using
>> PHP for a few years and have recently started playing with Rails or you've
>> been using Rails for a while but only in a small/sideline capacity and want
>> to move up to using it in a professional environment on high transaction
>> sports betting sites.
>>
>> We're looking for someone that knows the buzzwords - HTML, CSS, jQuery,
>> JSON, Rails, RSpec, etc but hasn't necessarily had a chance to learn them
>> fully or use them "in anger".  We'll start you off easy and bring you up to
>> speed working on a major Rails site, helping you learn along the way.
>>
>> We're looking for enthusiasm and drive, with a little bit of Rails rather
>> than lots of experience - recent/upcoming graduates that have played with
>> Rails part time would be perfect.
>>
>>  If you want a chance to switch or having been using Rails for a while
>> but haven't been able to prove yourself, get in touch.
>>
>> * No telecommuting
>> * Salary is early to late £20Ks depending on experience.
>>
>> Cheers,
>>
>>
>> Andy
>>
>> --
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[Rails] (JOBS) Junior Rails Developer, London, UK

[Andy Jeffries]

The company I'm contracting at is looking for:

An enthusiastic, junior Ruby on Rails developer.  Maybe you've been using
PHP for a few years and have recently started playing with Rails or you've
been using Rails for a while but only in a small/sideline capacity and want
to move up to using it in a professional environment on high transaction
sports betting sites.

We're looking for someone that knows the buzzwords - HTML, CSS, jQuery,
JSON, Rails, RSpec, etc but hasn't necessarily had a chance to learn them
fully or use them "in anger".  We'll start you off easy and bring you up to
speed working on a major Rails site, helping you learn along the way.

We're looking for enthusiasm and drive, with a little bit of Rails rather
than lots of experience - recent/upcoming graduates that have played with
Rails part time would be perfect.

If you want a chance to switch or having been using Rails for a while but
haven't been able to prove yourself, get in touch.

* No telecommuting
* Salary is early to late £20Ks depending on experience.

Cheers,


Andy

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Re: [Rails] Re: Mac and Rails

[Andy Jeffries]

>
> > Use Apache locally too.  It's simple, Apache is already installed on
> > Snow
> > Leopard. Install Passenger and configure it (which you'll need to learn
> > how
> > to do for production anyway).
>
> What a waste of effort IMHO.  I've never used anything but Mongrel
> locally.  It works fine n
>

What effort?  It's 4 lines of typing to get Passenger installed:

gem install passenger
passenger-install-apache2-module
(copy the suggested lines and paste into...)
mate /etc/apache2/httpd.conf
sudo apachectl restart

Download the Passenger Preferences Pane (
http://github.com/alloy/passengerpane/downloads) to be able to set up new
sites easily using a GUI.  Much easier than setting up Mongrel as a daemon
to serve multiple sites in the background.

How do you set up Mongrel that's easier (from scratch) than the above?  I'm
assuming you're not just working on a single Rails site and just do "rails
s" or "script/server" when you need it up (I have locally running websites
available all the time).

Cheers,


Andy

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Re: [Rails] Need Help - New to RoR

[Andy Jeffries]

Look in your log file (your_app/log/*.log) - the error will be detailed in
there.

Also, it seems from the error message you're running in production mode, you
should really switch to development then you'd see the full error message in
your browser.

Cheers,


Andy

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Company number: 5452840


On 16 June 2010 21:48, Sangeetha  wrote:

> Hello All,
>
> I installed Ruby on Windows (using rubyinstaller-1.9.1-p378.exe from
> here - http://rubyforge.org/frs/?group_id=167).
> Then I ran gem install rails.
>
> I was following instructions here -http://oreilly.com/pub/a/ruby/
> archive/rails.html?page=1 to create my first app.
> I was able to start the server and see the first page.
>
> When I click on "About you application's environment" link, I get the
> following message.
>
> We're sorry, but something went wrong. We've been notified about this
> issue and we'll take a look at it shortly.
>
> I get the same message when I generate a new controller and try to
> access that on the URL.
>
> Any idea what is wrong?
>
> Thank you
> Sangeetha
>
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Re: [Rails] Off Topic Advice Needed (Time objects)

[Andy Jeffries]

>
> If you have two floating point values representing seconds (and parts of)
>> why can't you just compare the two floating point values?
>>
>> What part are you stuck with?  Can you give us some code with a comment on
>> which bit you can't do.
>>
>
>> I don't have a problem with comparing floats, but I might need to find the
> 10 closest times to the actual event time and 4 of those times could be less
> than the actual event time and 6 could be higher.
>
> I don't mind rolling my own and am quite looking forward to it, but I don't
> want to re-invent the proverbial wheel.
>

This seems a fairly simple wheel to be worried about re-inventing though (or
even to look forward to).

OK, so you have an array of times.  You sort through them based on:

(predicted_time - actual_time).abs

and pick the smallest 10 items.

Cheers,


Andy

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Re: [Rails] Off Topic Advice Needed (Time objects)

[Andy Jeffries]

>
> These values are then converted to seconds and stored as decimal in the DB
> (I allow fractions of a second, too (tenth, hundredth, millisecond). when
> they are retrieved form the DB, I convert the seconds to a string format of,
> for example, 01:39:11 (from 5951 seconds). If fractions are used,  they are
> just appended to the string. (non of this is elegant IMO)
>
> That's all done in my Converter class. I am going to write a Calculator
> class to compare all times entered for an event and picking the closest
> times to how long the actual event took.
>
> So my question is, I know I can't use a Time object but it would be really
> nice to know if there is something out there that could help me with this as
> to write my own Calculator is going to be a bit of a pain.
>

If you have two floating point values representing seconds (and parts of)
why can't you just compare the two floating point values?

What part are you stuck with?  Can you give us some code with a comment on
which bit you can't do.


Andy

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Re: [Rails] Mac and Rails

[Andy Jeffries]

>
> I have been just tasked to learn Rails for a new project and have been
> given Mac machine for it. I have never used a Mac / Linux ever. I have
> used Rails before on Windows. I need to set up Rails development env
> on this Mac machine. Its Mac OS X - Snow Leopard. The development
> environment needs Rails 2.3.5, GIT client and MySQL. We are still
> swaying between using Mongreal or Apache locally, because the
> production will be in Apache.
>

Use Apache locally too.  It's simple, Apache is already installed on Snow
Leopard. Install Passenger and configure it (which you'll need to learn how
to do for production anyway).  Update your gems on Snow Leopard (as Rails is
also already installed on Snow Leopard) and away you go.


> Can someone advise what the best practices, best tools, editors, etc
> to set up Rails development env locally on a Mac? Apologize for the v
> basic question. :-)
>

As I said, you already have Rails and Apache ready to go.  You need to
install MySQL (or use sqlite in development) and that's it.  I personally
use TextMate, but RubyMine looks awesome if you don't mind the lag for
Java-based IDEs to start up.

Cheers,


Andy

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Re: [Rails] How to specify which database we're using?

[Andy Jeffries]

rake db:seed RAILS_ENV=test

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Company number: 5452840


On 4 June 2010 15:31, Ramos  wrote:

> I am seeding my environment for testing, but I am doing it upon my
> development environment, and in fact I'd like to seed my test
> environment...
>
> How can I do that?
>
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