1 module DeveloperProjectsAssociationExtension
3 find(:first, :order => "id DESC")
7 module DeveloperProjectsAssociationExtension2
9 find(:first, :order => "id ASC")
13 class Developer
< ActiveRecord
::Base
14 has_and_belongs_to_many
:projects do
16 find(:first, :order => "id DESC")
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
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
]
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
38 find(:first, :order => "id ASC")
42 has_and_belongs_to_many
:special_projects, :join_table => 'developers_projects', :association_foreign_key => 'project_id'
46 named_scope
:jamises, :conditions => {:name => 'Jamis'}
48 validates_inclusion_of
:salary, :in => 50000..200000
49 validates_length_of
:name, :within => 3..20
51 before_create
do |developer
|
52 developer
.audit_logs
.build
:message => "Computer created"
56 audit_logs
.build
:message => message
60 class AuditLog
< ActiveRecord
::Base
61 belongs_to
:developer, :validate => true
62 belongs_to
:unvalidated_developer, :class_name => 'Developer'
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
)]
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!
76 def raise_if_projects_empty
!
77 raise if projects
.empty
?
81 class DeveloperOrderedBySalary
< ActiveRecord
::Base
82 self.table_name
= 'developers'
83 default_scope
:order => 'salary DESC'
84 named_scope
:by_name, :order => 'name DESC'
86 def self.all_ordered_by_name
87 with_scope(:find => { :order => 'name DESC' }) do