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class Post < ActiveRecord::Base
class CategoryPost < ActiveRecord::Base
self.table_name = "categories_posts"
belongs_to :category
belongs_to :post
end
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
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) }
scope :tagged_with, ->(id) { joins(:taggings).where(taggings: { tag_id: id }) }
scope :tagged_with_comment, ->(comment) { joins(:taggings).where(taggings: { comment: comment }) }
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 :author_address_extra_with_address,
through: :author_with_address,
source: :author_address_extra
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_many :category_posts, :class_name => 'CategoryPost'
has_many :scategories, through: :category_posts, source: :category
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, :counter_cache => :tags_count
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 :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'
has_many :lazy_people, :through => :lazy_readers, :source => :person
has_many :lazy_readers_unscope_skimmers, -> { skimmers_or_not }, :class_name => 'LazyReader'
has_many :lazy_people_unscope_skimmers, :through => :lazy_readers_unscope_skimmers, :source => :person
def self.top(limit)
ranked_by_comments.limit_by(limit)
end
def self.written_by(author)
where(id: author.posts.pluck(:id))
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
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
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 PostWithSpecialCategorization < Post
has_many :categorizations, :foreign_key => :post_id
default_scope { where(:type => 'PostWithSpecialCategorization').joins(:categorizations).where(:categorizations => { :special => true }) }
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
class PostThatLoadsCommentsInAnAfterSaveHook < ActiveRecord::Base
self.table_name = 'posts'
has_many :comments, class_name: "CommentThatAutomaticallyAltersPostBody", foreign_key: :post_id
after_save do |post|
post.comments.load
end
end
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