I have such validation structures:
validates :upload_file_name, :presence = true,
:format ={:with =
%r{\.(jpg)$}i,:message =should have an extension .jpg}
validates_uniqueness_of :upload_file_name, :message =
On Ubuntu 12.04 trying to install Rails with
$ gem install Rails
fails with
ERROR: Loading command: install (LoadError)
cannot load such file -- zlib
ERROR: While executing gem ... (NameError)
uninitialized constant Gem::Commands::InstallCommand
Ruby was installed with rbenv. More info:
Pardon the silly question, but are you sure zlib1g-dev was installed prior
to building this ruby and not after the fact?
(This has caused many the annoying hour for me with multiple rubies and
forgetting when ruby x was actually built!)
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Thank you so much Paul. These are awesome resources.
On Fri, Nov 9, 2012 at 8:56 PM, Paul Makepeace pa...@paulm.com wrote:
Take a look at Amazon EC2 esp. since they make considerations for
those involved in education,
http://aws.amazon.com/education/
Even if you're not in education they
Hello!
I try to make automatic migrations directly from ruby script without
using rake and console commands.
But I can't retrieve current database schema version.
I have tried to use ActiveRecord::Migration.version and @version
property in a child of ActiveRecord::Migration. The result was nil
I have found the solution, but only by looking source code of
activerecord gem.
It's simple :)
ActiveRecord::Migrator.current_version
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No, the question is not silly at all. Actually, when I presented this
problem in an Ubuntu forum I asked it myself.
And, yes, uninstalling and reinstalling ruby 1.9.3-p286 solved the problem.
Thank you very much!
Den lördagen den 10:e november 2012 kl. 17:00:21 UTC+1 skrev Sam Pizzey:
Pardon
On Friday, 9 November 2012 12:57:53 UTC-5, why-el wrote:
Hey friends!
I am in the process of drafting a funding proposal to submit to my
university and I have no idea what costs I should include for my Rails app.
My application will open to my university's students. We are about 1600
On Sat, Nov 10, 2012 at 6:02 PM, Matt Jones al2o...@gmail.com wrote:
Costs can go up pretty quick on Heroku, but your application doesn't sound
like it would need a whole lot of resources. If nothing else, starting out
on the free plans on Heroku will provide you with a better understanding of
I have a general question about Rails controller or instance method.
Say, I have two models,
Give
Take
Each of these has an identical set of columns like,
Give : weight:integer, day:date
Take: weight:integer, day:date
When @give = Give.new is created, I want to search if there is a
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