Rails Ruby on Rails → 2.3.10

Comments and changes to this ticket

• You flagged this item as spam.
  

  Wade Stebbings June 24th, 2010 @ 10:10 PM

  I have not yet created a unique unit-test for this issue, but I've started looking into it.

  To recreate the problem, a part of the description which skimmed-over in the description above, I have these things going on in my rails app:

  • The app connects to two databases, one as the natural rails database, and one read-only metadata database which is quite huge. Models for the metadata database inherit from an abstract class called Metadata:

  class Metadata < ActiveRecord::Base

  self.abstract_class = true

  def self.database_name

  metadata = "#{RAILS_ENV}_metadata"
  configurations[metadata]['database']
  

  end

  def self.connect_to_metadata_database

  metadata = "#{RAILS_ENV}_metadata"
  @schema_prefix = Metadata.database_name + '.'
  self.establish_connection metadata
      puts "Connected to #{metadata.inspect}"
  

  end

  connect_to_metadata_database

  def self.table_name_prefix

  @schema_prefix
  

  end

  end

  • Also, in order to deal with another problem with allowing joins to occur across the two databases, I created an initializer file, which looks like this:

  class ActiveRecord::Base
  def self.set_schema_prefix

  @@schema_prefix = configurations[RAILS_ENV]['database'] + '.'
  

  end set_schema_prefix def self.table_name_prefix

  @@schema_prefix
  

  end end

  class ActiveRecord::ConnectionAdapters::MysqlAdapter
  def prefix_tables

  self.tables.map{|t| @@schema_prefix + t}
  

  end def self.set_schema_prefix

  @@schema_prefix = ActiveRecord::Base.configurations[RAILS_ENV]['database'] + '.'
  

  end set_schema_prefix end

• You flagged this item as spam.
  

  Wade Stebbings June 24th, 2010 @ 10:13 PM

  code-formatting got messed up above, here's another try..

  class Metadata < ActiveRecord::Base
    self.abstract_class = true
    def self.database_name
      metadata = "#{RAILS_ENV}_metadata"
      configurations[metadata]['database']
    end
    def self.connect_to_metadata_database
      metadata = "#{RAILS_ENV}_metadata"
      @schema_prefix = Metadata.database_name + '.'
      self.establish_connection metadata
          puts "Connected to #{metadata.inspect}"
    end
    connect_to_metadata_database
    def self.table_name_prefix
      @schema_prefix
    end
  end
  

  class ActiveRecord::Base
    def self.set_schema_prefix
      @@schema_prefix = configurations[RAILS_ENV]['database'] + '.'
    end
    set_schema_prefix
    def self.table_name_prefix
      @@schema_prefix
    end
  end
  
  class ActiveRecord::ConnectionAdapters::MysqlAdapter
    def prefix_tables
      self.tables.map{|t| @@schema_prefix + t}
    end
    def self.set_schema_prefix
      @@schema_prefix = ActiveRecord::Base.configurations[RAILS_ENV]['database'] + '.'
    end
    set_schema_prefix
  end
  

• 

  Santiago Pastorino February 2nd, 2011 @ 05:01 PM

  • State changed from “new” to “open”

  This issue has been automatically marked as stale because it has not been commented on for at least three months.

  The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.

  Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.

• 

  Santiago Pastorino February 2nd, 2011 @ 05:01 PM

  • State changed from “open” to “stale”

• You flagged this item as spam.
  

  Wade Stebbings February 2nd, 2011 @ 07:11 PM

  I don't believe this problem exists in rails 3.0 from looking at the code itself, as stated in my original posting. This is a rails 2 issue only. If no work on rails 2 is going to occur, even the latest of the 2.x branches, then this issue can be closed.

• 

  Santiago Pastorino February 2nd, 2011 @ 08:34 PM

  • State changed from “stale” to “open”
  • Milestone set to “2.3.10”
  • Importance changed from “” to “Low”