# File lib/sequel/plugins/pg_array_associations.rb 260 def primary_key 261 cached_fetch(:primary_key){associated_class.primary_key || raise(Error, "no primary key specified for #{associated_class.inspect}")} 262 end
class Sequel::Plugins::PgArrayAssociations::PgArrayToManyAssociationReflection
The AssociationReflection subclass for pg_array_to_many associations.
Constants
- FINALIZE_SETTINGS
Public Instance Methods
# File lib/sequel/plugins/pg_array_associations.rb 189 def array_type 190 cached_fetch(:array_type) do 191 if (sch = self[:model].db_schema) && (s = sch[self[:key]]) && (t = s[:db_type]) 192 t.sub(/\[\]\z/, '').freeze 193 else 194 :integer 195 end 196 end 197 end
An array containing the primary key for the associated model.
# File lib/sequel/plugins/pg_array_associations.rb 200 def associated_object_keys 201 Array(primary_key) 202 end
pg_array_to_many associations can only have associated objects if the array field is not nil or empty.
# File lib/sequel/plugins/pg_array_associations.rb 206 def can_have_associated_objects?(obj) 207 v = obj.get_column_value(self[:key]) 208 v && !v.empty? 209 end
pg_array_to_many associations do not need a primary key.
# File lib/sequel/plugins/pg_array_associations.rb 212 def dataset_need_primary_key? 213 false 214 end
Use a default key name of *_ids, for similarity to other association types that use *_id for single keys.
# File lib/sequel/plugins/pg_array_associations.rb 218 def default_key 219 :"#{singularize(self[:name])}_ids" 220 end
Always use the ruby eager_graph limit strategy if association is limited.
# File lib/sequel/plugins/pg_array_associations.rb 223 def eager_graph_limit_strategy(_) 224 :ruby if self[:limit] 225 end
Always use the ruby eager limit strategy
# File lib/sequel/plugins/pg_array_associations.rb 228 def eager_limit_strategy 229 cached_fetch(:_eager_limit_strategy) do 230 :ruby if self[:limit] 231 end 232 end
# File lib/sequel/plugins/pg_array_associations.rb 269 def filter_by_associations_conditions_expression(obj) 270 ds = filter_by_associations_conditions_dataset.where(filter_by_associations_conditions_subquery_conditions(obj)) 271 Sequel.function(:coalesce, Sequel.pg_array(filter_by_associations_conditions_key).overlaps(ds), Sequel::SQL::Constants::FALSE) 272 end
Don’t use a filter by associations limit strategy
# File lib/sequel/plugins/pg_array_associations.rb 235 def filter_by_associations_limit_strategy 236 nil 237 end
# File lib/sequel/plugins/pg_array_associations.rb 244 def finalize_settings 245 FINALIZE_SETTINGS 246 end
Handle silent failure of add/remove methods if raise_on_save_failure is false and save_after_modify is true.
# File lib/sequel/plugins/pg_array_associations.rb 250 def handle_silent_modification_failure? 251 self[:raise_on_save_failure] == false && self[:save_after_modify] 252 end
A qualified version of the associated primary key.
# File lib/sequel/plugins/pg_array_associations.rb 255 def predicate_key 256 cached_fetch(:predicate_key){qualify_assoc(primary_key)} 257 end
The primary key of the associated model.
The method to call to get value of the primary key of the associated model.
# File lib/sequel/plugins/pg_array_associations.rb 265 def primary_key_method 266 cached_fetch(:primary_key_method){primary_key} 267 end
Private Instance Methods
# File lib/sequel/plugins/pg_array_associations.rb 276 def filter_by_associations_add_conditions_dataset_filter(ds) 277 pk = qualify(associated_class.table_name, primary_key) 278 ds.select{array_agg(pk)}.exclude(pk=>nil) 279 end
# File lib/sequel/plugins/pg_array_associations.rb 281 def filter_by_associations_conditions_key 282 qualify(self[:model].table_name, self[:key]) 283 end
Only consider an association as a reciprocal if it has matching keys and primary keys.
Sequel::Model::Associations::AssociationReflection#reciprocal_association?
# File lib/sequel/plugins/pg_array_associations.rb 287 def reciprocal_association?(assoc_reflect) 288 super && self[:key] == assoc_reflect[:key] && primary_key == assoc_reflect.primary_key 289 end
# File lib/sequel/plugins/pg_array_associations.rb 291 def reciprocal_type 292 :many_to_pg_array 293 end
# File lib/sequel/plugins/pg_array_associations.rb 295 def use_placeholder_loader? 296 false 297 end