vendor/rails/activerecord/test/models/developer.rb

   1 module DeveloperProjectsAssociationExtension
   2   def find_most_recent
   3     find(:first, :order => "id DESC")
   4   end
   5 end
   6
   7 module DeveloperProjectsAssociationExtension2
   8   def find_least_recent
   9     find(:first, :order => "id ASC")
  10   end
  11 end
  12
  13 class Developer < ActiveRecord::Base
  14   has_and_belongs_to_many :projects do
  15     def find_most_recent
  16       find(:first, :order => "id DESC")
  17     end
  18   end
  19
  20   has_and_belongs_to_many :projects_extended_by_name,
  21       :class_name => "Project",
  22       :join_table => "developers_projects",
  23       :association_foreign_key => "project_id",
  24       :extend => DeveloperProjectsAssociationExtension
  25
  26   has_and_belongs_to_many :projects_extended_by_name_twice,
  27       :class_name => "Project",
  28       :join_table => "developers_projects",
  29       :association_foreign_key => "project_id",
  30       :extend => [DeveloperProjectsAssociationExtension, DeveloperProjectsAssociationExtension2]
  31
  32   has_and_belongs_to_many :projects_extended_by_name_and_block,
  33       :class_name => "Project",
  34       :join_table => "developers_projects",
  35       :association_foreign_key => "project_id",
  36       :extend => DeveloperProjectsAssociationExtension do
  37         def find_least_recent
  38           find(:first, :order => "id ASC")
  39         end
  40       end
  41
  42   has_and_belongs_to_many :special_projects, :join_table => 'developers_projects', :association_foreign_key => 'project_id'
  43
  44   has_many :audit_logs
  45
  46   named_scope :jamises, :conditions => {:name => 'Jamis'}
  47
  48   validates_inclusion_of :salary, :in => 50000..200000
  49   validates_length_of    :name, :within => 3..20
  50
  51   before_create do |developer|
  52     developer.audit_logs.build :message => "Computer created"
  53   end
  54
  55   def log=(message)
  56     audit_logs.build :message => message
  57   end
  58 end
  59
  60 class AuditLog < ActiveRecord::Base
  61   belongs_to :developer, :validate => true
  62   belongs_to :unvalidated_developer, :class_name => 'Developer'
  63 end
  64
  65 DeveloperSalary = Struct.new(:amount)
  66 class DeveloperWithAggregate < ActiveRecord::Base
  67   self.table_name = 'developers'
  68   composed_of :salary, :class_name => 'DeveloperSalary', :mapping => [%w(salary amount)]
  69 end
  70
  71 class DeveloperWithBeforeDestroyRaise < ActiveRecord::Base
  72   self.table_name = 'developers'
  73   has_and_belongs_to_many :projects, :join_table => 'developers_projects', :foreign_key => 'developer_id'
  74   before_destroy :raise_if_projects_empty!
  75
  76   def raise_if_projects_empty!
  77     raise if projects.empty?
  78   end
  79 end