diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/collection_association.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/collection_association.rb | 114 |
1 files changed, 1 insertions, 113 deletions
diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index 9abe648708..aa354d9009 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -24,7 +24,7 @@ module ActiveRecord # # If you need to work on all current children, new and existing records, # +load_target+ and the +loaded+ flag are your friends. - class CollectionAssociation < Association + class CollectionAssociation < Association #:nodoc: # Implements the reader method, e.g. foo.items for Foo.has_many :items def reader(force_reload = false) @@ -127,16 +127,6 @@ module ActiveRecord # Add +records+ to this association. Returns +self+ so method calls may # be chained. Since << flattens its argument list and inserts each record, # +push+ and +concat+ behave identically. - # - # class Person < ActiveRecord::Base - # pets :has_many - # end - # - # person.pets << Person.new(name: 'Nemo') - # person.pets.concat(Person.new(name: 'Droopy')) - # person.pets.push(Person.new(name: 'Ren')) - # - # person.pets # => [#<Pet name: "Nemo">, #<Pet name: "Droopy">, #<Pet name: "Ren">] def concat(*records) load_target if owner.new_record? @@ -181,17 +171,6 @@ module ActiveRecord # Destroy all the records from this association. # - # class Person < ActiveRecord::Base - # has_many :pets - # end - # - # person.pets.size # => 3 - # - # person.pets.destroy_all - # - # person.pets.size # => 0 - # person.pets # => [] - # # See destroy for more info. def destroy_all destroy(load_target).tap do @@ -302,51 +281,12 @@ module ActiveRecord # <tt>collection.size.zero?</tt>. If the collection has not been already # loaded and you are going to fetch the records anyway it is better to # check <tt>collection.length.zero?</tt>. - # - # class Person < ActiveRecord::Base - # has_many :pets - # end - # - # person.pets.count # => 1 - # person.pets.empty? # => false - # - # person.pets.delete_all - # person.pets.count # => 0 - # person.pets.empty? # => true def empty? size.zero? end # Returns true if the collections is not empty. # Equivalent to +!collection.empty?+. - # - # class Person < ActiveRecord::Base - # has_many :pets - # end - # - # person.pets.count # => 0 - # person.pets.any? # => false - # - # person.pets << Pet.new(name: 'Snoop') - # person.pets.count # => 0 - # person.pets.any? # => true - # - # Also, you can pass a block to define a criteria. The behaviour - # is the same, it returns true if the collection based on the - # criteria is not empty. - # - # person.pets - # # => [#<Pet name: "Snoop", group: "dogs">] - # - # person.pets.any? do |pet| - # pet.group == 'cats' - # end - # # => false - # - # person.pets.any? do |pet| - # pet.group == 'dogs' - # end - # # => true def any? if block_given? load_target.any? { |*block_args| yield(*block_args) } @@ -357,38 +297,6 @@ module ActiveRecord # Returns true if the collection has more than 1 record. # Equivalent to +collection.size > 1+. - # - # class Person < ActiveRecord::Base - # has_many :pets - # end - # - # person.pets.count #=> 1 - # person.pets.many? #=> false - # - # person.pets << Pet.new(name: 'Snoopy') - # person.pets.count #=> 2 - # person.pets.many? #=> true - # - # Also, you can pass a block to define a criteria. The - # behaviour is the same, it returns true if the collection - # based on the criteria has more than 1 record. - # - # person.pets - # # => [ - # # #<Pet name: "GorbyPuff", group: "cats">, - # # #<Pet name: "Wy", group: "cats">, - # # #<Pet name: "Snoop", group: "dogs"> - # # ] - # - # person.pets.many? do |pet| - # pet.group == 'dogs' - # end - # # => false - # - # person.pets.many? do |pet| - # pet.group == 'cats' - # end - # # => true def many? if block_given? load_target.many? { |*block_args| yield(*block_args) } @@ -406,26 +314,6 @@ module ActiveRecord # Replace this collection with +other_array+. This will perform a diff # and delete/add only records that have changed. - # - # class Person < ActiveRecord::Base - # has_many :pets - # end - # - # person.pets - # # => [#<Pet id: 1, name: "Wy", group: "cats", person_id: 1>] - # - # other_pets = [Pet.new(name: 'GorbyPuff', group: 'celebrities'] - # - # person.pets.replace(other_pets) - # - # person.pets - # # => [#<Pet id: 2, name: "GorbyPuff", group: "celebrities", person_id: 1>] - # - # If the supplied array has an incorrect association type, it raises - # an ActiveRecord::AssociationTypeMismatch error: - # - # person.pets.replace(["doo", "ggie", "gaga"]) - # # => ActiveRecord::AssociationTypeMismatch: Pet expected, got String def replace(other_array) other_array.each { |val| raise_on_type_mismatch(val) } original_target = load_target.dup |