class Sequel::Plugins::PgArrayAssociations::PgArrayToManyAssociationReflection

  1. lib/sequel/plugins/pg_array_associations.rb
Parent: PgArrayAssociations

The AssociationReflection subclass for pg_array_to_many associations.

Public Instance methods

associated_object_keys ()

An array containing the primary key for the associated model.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 140
def associated_object_keys
  Array(primary_key)
end
can_have_associated_objects? (obj)

pg_array_to_many associations can only have associated objects if the array field is not nil or empty.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 146
def can_have_associated_objects?(obj)
  v = obj.send(self[:key])
  v && !v.empty?
end
dataset_need_primary_key? ()

pg_array_to_many associations do not need a primary key.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 152
def dataset_need_primary_key?
  false
end
default_key ()

Use a default key name of *_ids, for similarity to other association types that use *_id for single keys.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 158
def default_key
  :"#{singularize(self[:name])}_ids"
end
filter_by_associations_conditions_expression (obj)
[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 177
def filter_by_associations_conditions_expression(obj)
  ds = filter_by_associations_conditions_dataset.where(filter_by_associations_conditions_subquery_conditions(obj))
  Sequel.function(:coalesce, Sequel.pg_array(filter_by_associations_conditions_key).overlaps(ds), Sequel::SQL::Constants::FALSE)
end
predicate_key ()

A qualified version of the associated primary key.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 163
def predicate_key
  cached_fetch(:predicate_key){qualify_assoc(primary_key)}
end
primary_key ()

The primary key of the associated model.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 168
def primary_key
  cached_fetch(:primary_key){associated_class.primary_key}
end
primary_key_method ()

The method to call to get value of the primary key of the associated model.

[show source] 
# File lib/sequel/plugins/pg_array_associations.rb, line 173
def primary_key_method
  cached_fetch(:primary_key_method){primary_key}
end