102 lines
2.6 KiB
Ruby
102 lines
2.6 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
# `counter_cache` requires association class before `attr_readonly`.
|
|
class Post < ActiveRecord::Base; end
|
|
|
|
class Comment < ActiveRecord::Base
|
|
scope :limit_by, lambda { |l| limit(l) }
|
|
scope :containing_the_letter_e, -> { where("comments.body LIKE '%e%'") }
|
|
scope :not_again, -> { where("comments.body NOT LIKE '%again%'") }
|
|
scope :for_first_post, -> { where(post_id: 1) }
|
|
scope :for_first_author, -> { joins(:post).where("posts.author_id" => 1) }
|
|
scope :created, -> { all }
|
|
scope :ordered_by_post_id, -> { order("comments.post_id DESC") }
|
|
|
|
belongs_to :post, counter_cache: true
|
|
belongs_to :author, polymorphic: true
|
|
belongs_to :resource, polymorphic: true
|
|
belongs_to :origin, polymorphic: true
|
|
belongs_to :company, foreign_key: "company"
|
|
|
|
has_many :ratings
|
|
|
|
belongs_to :first_post, foreign_key: :post_id
|
|
belongs_to :special_post_with_default_scope, foreign_key: :post_id
|
|
|
|
has_many :children, class_name: "Comment", foreign_key: :parent_id, inverse_of: :parent
|
|
belongs_to :parent, class_name: "Comment", counter_cache: :children_count, inverse_of: :children
|
|
|
|
alias_attribute :entry, :post
|
|
|
|
enum label: [:default, :child]
|
|
|
|
class ::OopsError < RuntimeError; end
|
|
|
|
module OopsExtension
|
|
def destroy_all(*)
|
|
raise OopsError
|
|
end
|
|
end
|
|
|
|
default_scope { extending OopsExtension }
|
|
|
|
scope :oops_comments, -> { extending OopsExtension }
|
|
|
|
# Should not be called if extending modules that having the method exists on an association.
|
|
def self.greeting
|
|
raise
|
|
end
|
|
|
|
def self.what_are_you
|
|
"a comment..."
|
|
end
|
|
|
|
def self.search_by_type(q)
|
|
where("#{QUOTED_TYPE} = ?", q)
|
|
end
|
|
|
|
def self.all_as_method
|
|
all
|
|
end
|
|
scope :all_as_scope, -> { all }
|
|
|
|
def to_s
|
|
body
|
|
end
|
|
end
|
|
|
|
class SpecialComment < Comment
|
|
belongs_to :ordinary_post, foreign_key: :post_id, class_name: "Post"
|
|
has_one :author, through: :post
|
|
default_scope { where(deleted_at: nil) }
|
|
|
|
def self.what_are_you
|
|
"a special comment..."
|
|
end
|
|
end
|
|
|
|
class SubSpecialComment < SpecialComment
|
|
end
|
|
|
|
class VerySpecialComment < Comment
|
|
end
|
|
|
|
class CommentThatAutomaticallyAltersPostBody < Comment
|
|
belongs_to :post, class_name: "PostThatLoadsCommentsInAnAfterSaveHook", foreign_key: :post_id
|
|
|
|
after_save do |comment|
|
|
comment.post.update(body: "Automatically altered")
|
|
end
|
|
end
|
|
|
|
class CommentWithDefaultScopeReferencesAssociation < Comment
|
|
default_scope -> { includes(:developer).order("developers.name").references(:developer) }
|
|
belongs_to :developer
|
|
end
|
|
|
|
class CommentWithAfterCreateUpdate < Comment
|
|
after_create do
|
|
update(body: "bar")
|
|
end
|
|
end
|