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Showing 21 - 30 of 148 total

On This Page:

  1. 1 ActiveRecord reconnect to database
  2. 2 doctype for standard layout
  3. 3 find conditions via hash
  4. 4 Subversion Configuration Script for Your Rails Application
  5. 5 Install plugin on rails app
  1. 6 Ubuntu 7.10: bootstrap a Ruby on Rails stack
  2. 7 jQuery and Rails' respond_to
  3. 8 writing destructive string methods in Ruby
  4. 9 Two or more parameters in RESTful route
  5. 10 acts_as_state_machine model

ActiveRecord reconnect to database

to ruby rails activerecord console ar merb orm reconnect by jamiew on May 02, 2008
// my Merb consoles drop the db connection after the mysql timeout; I'd rather not reload the whole environment

ActiveRecord::Base.connection.reconnect!

doctype for standard layout

to rails view by kioo on Apr 23, 2008 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 
  <head> 
  <meta http-equiv="content-type" content="text/html;charset=UTF-8" /> 
  <title>Events: <%= controller.action_name %></title> 
  <%= stylesheet_link_tag 'style' %> 
</head> 
<body> 

  <p style="color: green"><%= flash[:notice] %></p> 
  <%= yield %> 
</body> 
</html>

find conditions via hash

to rails model by kioo on Apr 23, 2008
Instead of simply adding a list of things at the end of the array, you can also pass in a hash and change the question marks to actual named replacements. This can help you keep the order of your arguments straight.

Event.find(
  :all,
  :conditions => [ "title like :search or description like :search",
                   {:search => "%Tiki%"}]
)

Subversion Configuration Script for Your Rails Application

to rails svn scripts configuration by imakethings on Mar 05, 2008
// Configure SVN for your rails app.

#!/bin/sh
svn remove log/*
svn commit -m"removing log files" 
svn propset svn:ignore "*.log" log/
svn update log/
svn commit -m 'Ignoring all files in /log/ ending in .log'
svn move config/database.yml config/database.example
svn commit -m 'Moving database.yml to database.example to provide a template for anyone who checks out the code'
svn propset svn:ignore "database.yml" config/
svn update config/
svn commit -m 'Ignoring database.yml'
svn remove tmp/*
svn propset svn:ignore "*" tmp/
svn update tmp/
svn commit -m "ignore tmp/ content from now" 
svn propset svn:ignore ".htaccess" config/
svn update config/
svn commit -m 'Ignoring .htaccess'
svn propset svn:ignore "dispatch.fcgi" config/
svn update config/
svn commit -m 'Ignoring dispatch.fcgi'

Install plugin on rails app

to rails plugin install by minofare on Jan 15, 2008 
script/plugin install [name of plugin, or the url to the desired plugin]

Ubuntu 7.10: bootstrap a Ruby on Rails stack

to ruby rails sysadmin config rubyonrails ubuntu linux app stack install by jamiew on Jan 15, 2008
// get started with ubuntu 7.1
// e.g. on a new slice from http://slicehost.com !

# 1) make yrself a user and stop being root

# 2) main web stack + ruby
sudo aptitude install -y make screen
sudo aptitude install -y apache2 php5 mysql-server
sudo aptitude install -y subversion postfix
sudo aptitude install -y ruby1.8 ruby1.8-dev rubygems irb
sudo aptitude install -y imagemagick librmagick-ruby1.8 librmagick-ruby-doc libfreetype6-dev xml-core

# 3) gemz
# rubygems appears to be broken as hell. 
# gem update --system does squat
# had to manually d/l rubygems 1.0.1, ruby setup.rb
wget http://rubyforge.org/frs/download.php/29548/rubygems-1.0.1.tgz
tar xzvf rubygems-1.0.1.tgz
cd rubygems-1.0.1
sudo ruby setup.rb
sudo gem install rails mongrel merb map_by_method

jQuery and Rails' respond_to

to ruby rails javascript rubyonrails ajax js jquery respond_to by jamiew on Jan 12, 2008
// Just throw this at the bottom of your application.js and you’re good to go: all jQuery ajax requests will trigger the wants.js block of your respond_to declaration, exactly like you’d expect. Enjoy.
// via: http://ozmm.org/posts/jquery_and_respond_to.html

jQuery.ajaxSetup({ ‘beforeSend’: function(xhr) {xhr.setRequestHeader(“Accept”, “text/javascript”)} })

writing destructive string methods in Ruby

to ruby rails by deckard on Jan 10, 2008
Use string class' method "replace" to overwrite its "self" value.

Example:

  def decapitalize!
    replace (self.reverse.chop + self.reverse.last.downcase).reverse
  end
  
  def decapitalize
    dup.decapitalize!
  end

Two or more parameters in RESTful route

to rails restul by deckard on Jan 10, 2008
Regardless of whether this is RESTful, to add multiple parameters to a normally RESTful route use the following

myresource_path(:id => myId, :extra_param => extraId, :extra_param2 => blah)


Results in 
myresource/myId?extra_param=extraId&extra_param2=blah


See this Google Rails Group thread from Jeremy Kemper.

acts_as_state_machine model

to ruby rails activerecord state acts_as_state_machine by jamiew on Jan 09, 2008
// ActiveRecord plugin for managing state changes
// elitists.textdriven.com/svn/plugins/acts_as_state_machine/ 

class Something < ActiveRecord::Base

  # Validations
  validate :validate_state_change

  # State Machine States
  acts_as_state_machine :initial => :new
  state :new
  state :enabled,   :after => :after_enabled
  state :disabled,  :after => :after_disabled

  # State Machine Events
  event :enabled do
    transitions :from => :new,      :to => :enabled
    transitions :from => :disabled, :to => :enabled
  end
  
  event :disabled do
    transitions :from => :new,      :to => :disabled
    transitions :from => :enabled,  :to => :disabled
  end

  # Instance Methods
  def validate_state_change
    return if new_record?
    old = self.class.find(id)
    old_state = old.state
    new_state = self.state
    self.state = old_state
    if old_state != new_state
      begin
        if self.method("#{new_state}!").call != true
          errors.add(:state, "cannot transition from #{old_state} to #{new_state}")
        end
      rescue NameError
      end
      self.state = new_state
    end
  end
end
Showing 21 - 30 of 148 total

On This Page:

  1. 1 ActiveRecord reconnect to database
  2. 2 doctype for standard layout
  3. 3 find conditions via hash
  4. 4 Subversion Configuration Script for Your Rails Application
  5. 5 Install plugin on rails app
  1. 6 Ubuntu 7.10: bootstrap a Ruby on Rails stack
  2. 7 jQuery and Rails' respond_to
  3. 8 writing destructive string methods in Ruby
  4. 9 Two or more parameters in RESTful route
  5. 10 acts_as_state_machine model