I On Rails http://ionrails.com Keeping an 'I' on RoR Wed, 16 May 2012 21:57:48 +0000 en hourly 1 http://wordpress.org/?v= How to resolve the rmagick.rb:248: [BUG] Segmentation fault issue http://ionrails.com/2012/05/16/how-to-resolve-the-rmagick-rb248-bug-segmentation-fault-issue/ http://ionrails.com/2012/05/16/how-to-resolve-the-rmagick-rb248-bug-segmentation-fault-issue/#comments Wed, 16 May 2012 21:54:49 +0000 navid http://ionrails.com/?p=761 The way I resolved the following rmagick.rb:248: [BUG] Segmentation fault issue was by reinstalling the ImageMagick and the rmagick gem. When reinstalling imagemagick, you should disable openmp. See below. Source: http://stackoverflow.com/questions/7319445/rmagick-leads-to-server-shutdown:

brew uninstall imagemagick && brew install -f imagemagick --disable-openmp && gem uninstall rmagick && gem install rmagick

/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/carrierwave-0.6.2/lib/carrierwave/processing/rmagick.rb:248: [BUG] Segmentation fault
ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-darwin11.0.0]

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c:0017 p:---- s:0065 b:0065 l:000064 d:000064 CFUNC  :catch
c:0016 p:0135 s:0061 b:0061 l:000060 d:000060 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:78
c:0015 p:0088 s:0056 b:0055 l:000054 d:000054 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:53
c:0014 p:0036 s:0052 b:0052 l:000051 d:000051 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:38
c:0013 p:---- s:0047 b:0047 l:000046 d:000046 FINISH
c:0012 p:---- s:0045 b:0045 l:000044 d:000044 CFUNC  :run_machine
c:0011 p:0248 s:0042 b:0042 l:000041 d:000041 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/eventmachine-0.12.10/lib/eventmachine.rb:256
c:0010 p:0066 s:0035 b:0035 l:002070 d:002070 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/backends/base.rb:61
c:0009 p:0143 s:0031 b:0031 l:000030 d:000030 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/server.rb:159
c:0008 p:0081 s:0028 b:0028 l:000027 d:000027 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/handler/thin.rb:13
c:0007 p:0063 s:0022 b:0022 l:000021 d:000021 METHOD /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara.rb:177
c:0006 p:0021 s:0017 b:0017 l:0020f8 d:000016 BLOCK  /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara.rb:236
c:0005 p:---- s:0013 b:0013 l:000012 d:000012 FINISH
c:0004 p:---- s:0011 b:0011 l:000010 d:000010 CFUNC  :call
c:0003 p:0040 s:0006 b:0006 l:001638 d:000005 BLOCK  /Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara/server.rb:65
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:---- s:0002 b:0002 l:000001 d:000001 TOP   

-- Ruby level backtrace information ----------------------------------------
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara/server.rb:65:in `block in boot'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara/server.rb:65:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara.rb:236:in `block (2 levels) in <top (required)>'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara.rb:177:in `run_default_server'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/handler/thin.rb:13:in `run'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/server.rb:159:in `start'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/backends/base.rb:61:in `start'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:38:in `receive_data'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:53:in `process'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:78:in `pre_process'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:78:in `catch'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/thin-1.3.1/lib/thin/connection.rb:80:in `block in pre_process'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/capybara-1.1.2/lib/capybara/server.rb:17:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/urlmap.rb:49:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/urlmap.rb:49:in `each'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/urlmap.rb:64:in `block in call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/builder.rb:134:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/railties-3.2.3/lib/rails/application.rb:220:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/railties-3.2.3/lib/rails/engine.rb:479:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/airbrake-3.0.9/lib/airbrake/user_informer.rb:12:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/static.rb:62:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/lock.rb:15:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activesupport-3.2.3/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/runtime.rb:17:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/methodoverride.rb:21:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/request_id.rb:22:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/railties-3.2.3/lib/rails/rack/logger.rb:16:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/railties-3.2.3/lib/rails/rack/logger.rb:26:in `call_app'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/cucumber-rails-1.2.1/lib/cucumber/rails/action_controller.rb:10:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:81:in `run_callbacks'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:405:in `__run_callback'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:405:in `_run__3325432370046815384__call__4124604685534991187__callbacks'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:467:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activerecord-3.2.3/lib/active_record/query_cache.rb:64:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/cookies.rb:338:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:200:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:205:in `context'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/flash.rb:242:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/head.rb:14:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/conditionalget.rb:35:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/rack-1.4.1/lib/rack/etag.rb:23:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/warden-1.1.0/lib/warden/manager.rb:34:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/warden-1.1.0/lib/warden/manager.rb:34:in `catch'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/warden-1.1.0/lib/warden/manager.rb:35:in `block in call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/airbrake-3.0.9/lib/airbrake/rack.rb:27:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/routing/route_set.rb:600:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/journey-1.0.3/lib/journey/router.rb:56:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/journey-1.0.3/lib/journey/router.rb:56:in `each'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/journey-1.0.3/lib/journey/router.rb:68:in `block in call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/routing/route_set.rb:36:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_dispatch/routing/route_set.rb:73:in `call'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_controller/metal.rb:246:in `block in action'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/action_controller/metal.rb:203:in `dispatch'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/abstract_controller/rendering.rb:45:in `process'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/actionpack-3.2.3/lib/abstract_controller/base.rb:121:in `process'
/Users/navid/.rvm/gems/ruby-1.9.3-p194@my_rails_app/gems/activerecord-3.2.3/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
]]> http://ionrails.com/2012/05/16/how-to-resolve-the-rmagick-rb248-bug-segmentation-fault-issue/feed/ 0 ckeditor $ is not defined http://ionrails.com/2012/05/15/ckeditor-is-not-defined/ http://ionrails.com/2012/05/15/ckeditor-is-not-defined/#comments Tue, 15 May 2012 20:13:47 +0000 navid http://ionrails.com/?p=756 :ckeditor which inserts the following code beneath your textarea: However, if you load your JavaScript at the bottom of the page instead [...]]]> ckeditor gem assumes that you load your JavaScripts at the top of your page instead of the bottom.

I used the SimpleForm integration by setting the textarea input field parameter to :as => :ckeditor which inserts the following code beneath your textarea:

//<![CDATA[
$(document).ready(function(){ if (CKEDITOR.instances['paper_abstract']) {CKEDITOR.remove(CKEDITOR.instances['unique_id_of_your_textarea_goes_here']);}CKEDITOR.replace('unique_id_of_your_textarea_goes_here', {"language":"en","rows":10,"toolbar":"Full","class":["ckeditor","required"],"required":true,"placeholder":"Please enter an abstract."}); });
//]]>

However, if you load your JavaScript at the bottom of the page instead of the top, you’ll see this error in your Firebug Console: ‘$ is not defined’

My current solution was to not use the :as => :ckeditor parameter but instead call the above JavaScript code from within a js that gets loaded at the top of the page.

]]> http://ionrails.com/2012/05/15/ckeditor-is-not-defined/feed/ 0 Facebook Share and Like Button Customization Issues http://ionrails.com/2012/05/04/facebook-share-like-button/ http://ionrails.com/2012/05/04/facebook-share-like-button/#comments Fri, 04 May 2012 07:13:59 +0000 navid http://ionrails.com/?p=730 My goal was to get a customized Facebook Like button working. Our designer gave us a mockup of a Facebook button which didn’t have the word Like in it, no counter or anything else except the f in a rounded-corner box Facebook logo. It was very difficult to customize it since code you insert into your HTML DOM is an iframe and Facebook does all it can to prevent you from changing the style of their code, in order to replace their background image. Because Facebook Like button options didn’t match my needs, I resorted to using the Facebook Share button. The Facebook Like button information can be found here Facebook Like Button.

The Facebook Share button is deprecated but still works, though Facebook no longer supports it. Information on that can be found at Facebook Share Button. I used the fb_share type of ‘icon’ which is the type of icon I was interested.

Has anyone solved the problem of customizing the Facebook Like icon, without a counter and without displaying anything else but a simple 18×18 pixel Facebook icon? I tried to modify the background image within Facebook’s iframe via css and JavaScript with no luck. I wasn’t even able to do this with the Firebug console.

]]> http://ionrails.com/2012/05/04/facebook-share-like-button/feed/ 0 String datatype usages http://ionrails.com/2012/05/04/string-datatype-usages/ http://ionrails.com/2012/05/04/string-datatype-usages/#comments Fri, 04 May 2012 06:59:24 +0000 navid http://ionrails.com/?p=725 ‘ ‘
” ”
%q( ) – matches with single-quote but you can choose
%Q| | – like double-quote but you can choose end chars

doc = < …
…
END

]]> http://ionrails.com/2012/05/04/string-datatype-usages/feed/ 0 Rails 3 Performance http://ionrails.com/2011/05/15/rails-3-performance/ http://ionrails.com/2011/05/15/rails-3-performance/#comments Sun, 15 May 2011 17:15:34 +0000 navid http://ionrails.com/?p=718 Great article on Rails 3 performance Rails 3 Performance – Not Good Enough

]]> http://ionrails.com/2011/05/15/rails-3-performance/feed/ 0 Rails and rake db:migrate in Production Mode http://ionrails.com/2011/05/07/rails-rake-db-migrate-in-production-mode/ http://ionrails.com/2011/05/07/rails-rake-db-migrate-in-production-mode/#comments Sat, 07 May 2011 21:01:53 +0000 navid http://ionrails.com/?p=713 There are some inconsistencies when running rails server, rails console and rake db:migrate in production mode. There really should be a standard way to let the rails and rake commands know you want to execute them in production mode.

Starting Rails Server in Production Mode

rails server -e production
OR
rails s -e production

Starting Rails Console in Production Mode

rails console production
OR
rails c production

rake db:migrate in Production Mode

rake db:migrate RAILS_ENV=production
]]> http://ionrails.com/2011/05/07/rails-rake-db-migrate-in-production-mode/feed/ 0 Clearing All Rails Log Files with Rake Task http://ionrails.com/2011/04/26/clearing-all-rails-log-files-with-rake-task/ http://ionrails.com/2011/04/26/clearing-all-rails-log-files-with-rake-task/#comments Tue, 26 Apr 2011 18:12:37 +0000 navid http://ionrails.com/?p=706 In order to clear all of your Rails log files development.log, production.log, server.log and test.log with a rake task, type:

rake log:clear

This is mainly useful while under development. Be careful with this as it will clear out your production.log file as well!

]]> http://ionrails.com/2011/04/26/clearing-all-rails-log-files-with-rake-task/feed/ 0 Building Custom XML Responses in Rails http://ionrails.com/2011/04/16/building-xml-response-in-rails/ http://ionrails.com/2011/04/16/building-xml-response-in-rails/#comments Sat, 16 Apr 2011 08:09:11 +0000 navid http://ionrails.com/?p=699 Assume you have a CitiesController with just one action capital_city, which doesn’t need any of the RESTful actions. I set up a custom route for this one action.

The capital_city action returns the xml like the following, for example:

<list>
  <item>Washington D.C.</item>
</list>

Here is what the entry in the routes.rb file looks like:

  get "cities/capital_city"

Your controller may look something like below, where call to City.capital_city is just a named scope defined in your model which takes a country name as an argument and returns the name of the capital city.

class CitiesController < ApplicationController

  # GET /cities/capital_city.xml?country=United States
  def capital_city
    @capital_city = City.capital_city(params[:country])

    respond_to do |format|
      format.xml # COMMENT THIS OUT TO USE YOUR CUSTOM XML RESPONSE INSTEAD  { render :xml => @capital_city }
    end
  end
end

Therefore, you need to create a xml builder file in place where you would normally expect the builder file to be, which is the view.
So, in this case, you would expect the builder file to be under views/cities/capital_city.xml.builder

Your views/cities/capital_city.xml.builder would contain:

xml.instruct!
xml.list do
  if @capital_city.empty?
    xml.item
  else
    xml.item @capital_city[0]['name']
  end
end

Then you should be able to hit http://localhost:3000cities/capital_city.xml?country=United States and see the xml response.

I recommend switching the HTTP method from ‘get’ to ‘post’ instead in the routes file, if for example, you are using the xml response for an AJAX request. However, for testing purposes it’s easier to use the get method first if you want to test it in your browser without special tools.

]]> http://ionrails.com/2011/04/16/building-xml-response-in-rails/feed/ 0 Bundle Install – missing mysql.h http://ionrails.com/2011/04/13/bundle-install-missing-mysql-h/ http://ionrails.com/2011/04/13/bundle-install-missing-mysql-h/#comments Wed, 13 Apr 2011 17:57:51 +0000 navid http://ionrails.com/?p=695 If you’re seeing the following error:

checking for rb_thread_blocking_region()... yes
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing.  please check your installation of mysql and try again.

The way I was able to resolve it was to follow Boonedocks.net, since I’m also using MAMP for its MySQL Database instance.

The only difference is that I already had MAMP 1.9.4 installed and so I had to download the MAMP_components_1.9.dmg which contains the mysql-5.1.44 source code. MAMP 1.9.4 comes with mysql-5.1.44 but I needed the source code so I can compile libraries so the mysql Gem can link against it.

Here are the steps, assuming you already have MAMP or a separate standalone MySQL instance installed.

However, you should be able to follow similar instructions even if you don’t have MAMP installed. If you don’t have MAMP installed, correct the paths referenced below, as these ones below reference the MAMP directory.

  1. Figure out which version of mysql you have installed by running mysql from the prompt or checking your phpinfo page
  2. Download and Install the MAMP_components_1.x.dmg or the MySQL source code. The version should match your current mysql version though in order to avoid issues. Inside the MAMP Components, you should see a mysql tarball. You need to untar/unzip that.
  3. cd into the mysql-5.x source directory
  4. Assuming you have MAMP installed, type the following: ./configure –with-unix-socket-path=/Applications/MAMP/tmp/mysql/mysql.sock –without-server –prefix=/Applications/MAMP/Library
  5. Execute: make -j2
  6. Execute: cp libmysql/.libs/*.dylib /Applications/MAMP/Library/lib/mysql
  7. Execute: mkdir /Applications/MAMP/Library/include
  8. Execute: cp -R include /Applications/MAMP/Library/include/mysql
  9. Execute: sudo env ARCHFLAGS=”-arch i386″ gem install mysql — –with-mysql-config=/Applications/MAMP/Library/bin/mysql_config
]]> http://ionrails.com/2011/04/13/bundle-install-missing-mysql-h/feed/ 1 Using lambda with named scopes in Rails 3 http://ionrails.com/2011/04/12/using-lambda-with-named-scopes-in-rails-3/ http://ionrails.com/2011/04/12/using-lambda-with-named-scopes-in-rails-3/#comments Tue, 12 Apr 2011 23:54:29 +0000 navid http://ionrails.com/?p=690 You can define an ActiveRelation named scope inside your model Address, for example, like so:

class Address < ActiveRecord::Base
  scope :search, lambda {|query| where(["name LIKE ?", "%#{query}%"])}
end
]]> http://ionrails.com/2011/04/12/using-lambda-with-named-scopes-in-rails-3/feed/ 1