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118 lines
2.8 KiB
Ruby
118 lines
2.8 KiB
Ruby
class Topic < ActiveRecord::Base
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scope :base, -> { all }
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scope :written_before, lambda { |time|
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if time
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where "written_on < ?", time
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end
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}
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scope :approved, -> { where(approved: true) }
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scope :rejected, -> { where(approved: false) }
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scope :scope_with_lambda, lambda { all }
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scope :by_lifo, -> { where(author_name: "lifo") }
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scope :replied, -> { where "replies_count > 0" }
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scope "approved_as_string", -> { where(approved: true) }
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scope :anonymous_extension, -> { all } do
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def one
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1
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end
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end
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scope :with_object, Class.new(Struct.new(:klass)) {
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def call
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klass.where(approved: true)
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end
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}.new(self)
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module NamedExtension
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def two
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2
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end
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end
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has_many :replies, dependent: :destroy, foreign_key: "parent_id", autosave: true
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has_many :approved_replies, -> { approved }, class_name: "Reply", foreign_key: "parent_id", counter_cache: "replies_count"
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has_many :unique_replies, dependent: :destroy, foreign_key: "parent_id"
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has_many :silly_unique_replies, dependent: :destroy, foreign_key: "parent_id"
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serialize :content
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before_create :default_written_on
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before_destroy :destroy_children
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def parent
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Topic.find(parent_id)
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end
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# trivial method for testing Array#to_xml with :methods
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def topic_id
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id
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end
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alias_attribute :heading, :title
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before_validation :before_validation_for_transaction
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before_save :before_save_for_transaction
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before_destroy :before_destroy_for_transaction
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after_save :after_save_for_transaction
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after_create :after_create_for_transaction
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after_initialize :set_email_address
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class_attribute :after_initialize_called
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after_initialize do
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self.class.after_initialize_called = true
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end
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def approved=(val)
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@custom_approved = val
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write_attribute(:approved, val)
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end
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protected
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def default_written_on
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self.written_on = Time.now unless attribute_present?("written_on")
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end
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def destroy_children
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self.class.where("parent_id = #{id}").delete_all
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end
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def set_email_address
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unless self.persisted?
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self.author_email_address = "test@test.com"
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end
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end
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def before_validation_for_transaction; end
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def before_save_for_transaction; end
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def before_destroy_for_transaction; end
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def after_save_for_transaction; end
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def after_create_for_transaction; end
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end
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class ImportantTopic < Topic
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serialize :important, Hash
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end
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class DefaultRejectedTopic < Topic
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default_scope -> { where(approved: false) }
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end
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class BlankTopic < Topic
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# declared here to make sure that dynamic finder with a bang can find a model that responds to `blank?`
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def blank?
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true
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end
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end
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module Web
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class Topic < ActiveRecord::Base
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has_many :replies, dependent: :destroy, foreign_key: "parent_id", class_name: "Web::Reply"
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end
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end
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