1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
class Post < ActiveRecord::Base
module NamedExtension
def author
'lifo'
end
end
module NamedExtension2
def greeting
"hello"
end
end
scope :containing_the_letter_a, -> { where("body LIKE '%a%'") }
scope :ranked_by_comments, -> { order("comments_count DESC") }
scope :limit_by, lambda {|l| limit(l) }
belongs_to :author do
def greeting
"hello"
end
end
belongs_to :author_with_posts, -> { includes(:posts) }, :class_name => "Author", :foreign_key => :author_id
belongs_to :author_with_address, -> { includes(:author_address) }, :class_name => "Author", :foreign_key => :author_id
def first_comment
super.body
end
has_one :first_comment, -> { order('id ASC') }, :class_name => 'Comment'
has_one :last_comment, -> { order('id desc') }, :class_name => 'Comment'
scope :with_special_comments, -> { joins(:comments).where(:comments => {:type => 'SpecialComment'}) }
scope :with_very_special_comments, -> { joins(:comments).where(:comments => {:type => 'VerySpecialComment'}) }
scope :with_post, ->(post_id) { joins(:comments).where(:comments => { :post_id => post_id }) }
scope :with_comments, -> { preload(:comments) }
scope :with_tags, -> { preload(:taggings) }
has_many :comments do
def find_most_recent
order("id DESC").first
end
def newest
created.last
end
def the_association
proxy_association
end
end
has_many :comments_with_extend, extend: NamedExtension, class_name: "Comment", foreign_key: "post_id" do
def greeting
"hello"
end
end
has_many :comments_with_extend_2, extend: [NamedExtension, NamedExtension2], class_name: "Comment", foreign_key: "post_id"
has_many :author_favorites, :through => :author
has_many :author_categorizations, :through => :author, :source => :categorizations
has_many :author_addresses, :through => :author
has_many :comments_with_interpolated_conditions,
->(p) { where "#{"#{p.aliased_table_name}." rescue ""}body = ?", 'Thank you for the welcome' },
:class_name => 'Comment'
has_one :very_special_comment
has_one :very_special_comment_with_post, -> { includes(:post) }, :class_name => "VerySpecialComment"
has_many :special_comments
has_many :nonexistant_comments, -> { where 'comments.id < 0' }, :class_name => 'Comment'
has_many :special_comments_ratings, :through => :special_comments, :source => :ratings
has_many :special_comments_ratings_taggings, :through => :special_comments_ratings, :source => :taggings
has_and_belongs_to_many :categories
has_and_belongs_to_many :special_categories, :join_table => "categories_posts", :association_foreign_key => 'category_id'
has_many :taggings, :as => :taggable
has_many :tags, :through => :taggings do
def add_joins_and_select
select('tags.*, authors.id as author_id')
.joins('left outer join posts on taggings.taggable_id = posts.id left outer join authors on posts.author_id = authors.id')
.to_a
end
end
has_many :taggings_with_delete_all, :class_name => 'Tagging', :as => :taggable, :dependent => :delete_all
has_many :taggings_with_destroy, :class_name => 'Tagging', :as => :taggable, :dependent => :destroy
has_many :tags_with_destroy, :through => :taggings, :source => :tag, :dependent => :destroy
has_many :tags_with_nullify, :through => :taggings, :source => :tag, :dependent => :nullify
has_many :misc_tags, -> { where :tags => { :name => 'Misc' } }, :through => :taggings, :source => :tag
has_many :funky_tags, :through => :taggings, :source => :tag
has_many :super_tags, :through => :taggings
has_many :tags_with_primary_key, :through => :taggings, :source => :tag_with_primary_key
has_one :tagging, :as => :taggable
has_many :first_taggings, -> { where :taggings => { :comment => 'first' } }, :as => :taggable, :class_name => 'Tagging'
has_many :first_blue_tags, -> { where :tags => { :name => 'Blue' } }, :through => :first_taggings, :source => :tag
has_many :first_blue_tags_2, -> { where :taggings => { :comment => 'first' } }, :through => :taggings, :source => :blue_tag
has_many :invalid_taggings, -> { where 'taggings.id < 0' }, :as => :taggable, :class_name => "Tagging"
has_many :invalid_tags, :through => :invalid_taggings, :source => :tag
has_many :categorizations, :foreign_key => :category_id
has_many :authors, :through => :categorizations
has_many :categorizations_using_author_id, :primary_key => :author_id, :foreign_key => :post_id, :class_name => 'Categorization'
has_many :authors_using_author_id, :through => :categorizations_using_author_id, :source => :author
has_many :taggings_using_author_id, :primary_key => :author_id, :as => :taggable, :class_name => 'Tagging'
has_many :tags_using_author_id, :through => :taggings_using_author_id, :source => :tag
has_many :standard_categorizations, :class_name => 'Categorization', :foreign_key => :post_id
has_many :author_using_custom_pk, :through => :standard_categorizations
has_many :authors_using_custom_pk, :through => :standard_categorizations
has_many :named_categories, :through => :standard_categorizations
has_many :readers
has_many :secure_readers
has_many :readers_with_person, -> { includes(:person) }, :class_name => "Reader"
has_many :people, :through => :readers
has_many :secure_people, :through => :secure_readers
has_many :single_people, :through => :readers
has_many :people_with_callbacks, :source=>:person, :through => :readers,
:before_add => lambda {|owner, reader| log(:added, :before, reader.first_name) },
:after_add => lambda {|owner, reader| log(:added, :after, reader.first_name) },
:before_remove => lambda {|owner, reader| log(:removed, :before, reader.first_name) },
:after_remove => lambda {|owner, reader| log(:removed, :after, reader.first_name) }
has_many :skimmers, -> { where :skimmer => true }, :class_name => 'Reader'
has_many :impatient_people, :through => :skimmers, :source => :person
has_many :lazy_readers
has_many :lazy_readers_skimmers_or_not, -> { where(skimmer: [ true, false ]) }, :class_name => 'LazyReader'
def self.top(limit)
ranked_by_comments.limit_by(limit)
end
def self.reset_log
@log = []
end
def self.log(message=nil, side=nil, new_record=nil)
return @log if message.nil?
@log << [message, side, new_record]
end
def self.what_are_you
'a post...'
end
end
class SpecialPost < Post; end
class StiPost < Post
self.abstract_class = true
has_one :special_comment, :class_name => "SpecialComment"
end
class SubStiPost < StiPost
self.table_name = Post.table_name
end
ActiveSupport::Deprecation.silence do
class DeprecatedPostWithComment < ActiveRecord::Base
self.table_name = 'posts'
default_scope where("posts.comments_count > 0").order("posts.comments_count ASC")
end
end
class PostForAuthor < ActiveRecord::Base
self.table_name = 'posts'
cattr_accessor :selected_author
end
class FirstPost < ActiveRecord::Base
self.table_name = 'posts'
default_scope { where(:id => 1) }
has_many :comments, :foreign_key => :post_id
has_one :comment, :foreign_key => :post_id
end
class PostWithDefaultInclude < ActiveRecord::Base
self.table_name = 'posts'
default_scope { includes(:comments) }
has_many :comments, :foreign_key => :post_id
end
class PostWithDefaultScope < ActiveRecord::Base
self.table_name = 'posts'
default_scope { order(:title) }
end
class SpecialPostWithDefaultScope < ActiveRecord::Base
self.table_name = 'posts'
default_scope { where(:id => [1, 5,6]) }
end
|
