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31 total

On This Page:

  1. 1 writing destructive string methods in Ruby
  2. 2 Two or more parameters in RESTful route
  3. 3 SOAP4R Rails NameError FIX
  4. 4 Freeze rails
  5. 5 old deprecated legacy plugins repository for Rails
  1. 6 rails console - add module methods
  2. 7 eliminate duplicate flash on before_filter methods
  3. 8 ruby_inline permission denied when starting mongrel_cluster from init.d
  4. 9 Rotate Rails Log files
  5. 10 field focus in rails template

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.

SOAP4R Rails NameError FIX

to rails SOAP4R by deckard on Dec 18, 2007
// description of your code here

Update /Library/Ruby/Gems/1.8/gems/soap4r-1.5.8/lib/soap
  # KNOWN_TAG = XSD::NS::KNOWN_TAG.dup.update(
  #   SOAP::EnvelopeNamespace => 'env'
  # ) # Replaced with code from http://dev.ctor.org/soap4r/ticket/433
  KNOWN_TAG = {
      XSD::Namespace => 'xsd', XSD::InstanceNamespace => 'xsi', SOAP::EnvelopeNamespace => 'env'
  }

Freeze rails

to rails by deckard on Dec 18, 2007
Freeze rails 1.2.3 to a project through rubyonrails.org TRAC.

rake rails:freeze:edge TAG=rel_1-2-3

old deprecated legacy plugins repository for Rails

to rails plugin by deckard on Nov 04, 2007
// description of your code here

Find old official rails trunk plugins that didn't make the cut here:

http://dev.rubyonrails.org/svn/rails/plugins/legacy/

rails console - add module methods

to rails by deckard on Oct 26, 2007
Extend the functionality of the rails console by mixing in modules

>> extend ERB::Util
=> #<Object:0x2572f68>
>> h('<b>blahblah</b>')
=> "&lt;b&gt;blahblah&lt;/b&gt;"


You can extend ActionView::Helpers, etc. with this to provide view method functionality in the console.

http://errtheblog.com/post/43

eliminate duplicate flash on before_filter methods

to rails by deckard on Aug 22, 2007
When using a before filter to prevent unauthorized access to methods, use flash.now instead of flash, when painting error messages.

flash.now[:warning] = "You must be the group admin (and logged in) to edit."


see KerryBuckley.com for more info

ruby_inline permission denied when starting mongrel_cluster from init.d

to rails by deckard on Aug 19, 2007
The cause is the project is trying to read /root/.ruby_inline/Inline_ImageScience_aa58.c, yet the user running the rails project is the one specified in the /config/mongrel_cluster.yml (usually some other user that is NOT root).

When the project references anything to do with ImageScience, it will complain that it has insufficient rights to read the c library file, of course, since it's in root's home dir.

Solution, specify a home environment variable in your rails project's production.rb file (/rails_project/config/environments/production.rb)

ENV['HOME'] = '/home/billy'


Now when the project is started from system boot, or manually by calling ./etc/init.d/mongrel_cluster start, the rails project will always look to the user's home directory, rather than root's.

EDIT:

Or better yet, use this patch to lib/mongrel/configurator.rb
(was posted at ruby-on-rails talk google groups)
-          log "Changing user to #{user}." 
-          Process::UID.change_privilege(Etc.getpwnam(user).uid)
+          log "Changing user to #{user}."
+          getpwnam = Etc.getpwnam(user)
+          Process::UID.change_privilege(getpwnam.uid)
+          ENV['HOME'] = getpwnam.dir

Rotate Rails Log files

to rails by deckard on Aug 18, 2007
// description of your code here
Keeps 50 files of a maximum size of 5MB each

config.logger = Logger.new("#{RAILS_ROOT}/log/#{ENV['RAILS_ENV']}.log", 50, 5242880)

field focus in rails template

to rails by deckard on Aug 12, 2007
Stick the following in application_helper.rb:

def set_focus_to_id(id)
  javascript_tag("$('#{id}').focus()");
end


Then this in the templates as needed to generate a javascript focus tag.
(Note this exaple pretends to set focus for a field with id='user_login').
<%= set_focus_to_id 'user_login' %>
31 total

On This Page:

  1. 1 writing destructive string methods in Ruby
  2. 2 Two or more parameters in RESTful route
  3. 3 SOAP4R Rails NameError FIX
  4. 4 Freeze rails
  5. 5 old deprecated legacy plugins repository for Rails
  1. 6 rails console - add module methods
  2. 7 eliminate duplicate flash on before_filter methods
  3. 8 ruby_inline permission denied when starting mongrel_cluster from init.d
  4. 9 Rotate Rails Log files
  5. 10 field focus in rails template