Class: Sequel::Model::Associations::OneToManyAssociationReflection
- Inherits:
-
AssociationReflection
- Object
- Hash
- AssociationReflection
- Sequel::Model::Associations::OneToManyAssociationReflection
- Defined in:
- lib/sequel/model/associations.rb
Direct Known Subclasses
Constant Summary
Constants included from Inflections
Inflections::CAMELIZE_CONVERT_REGEXP, Inflections::CAMELIZE_MODULE_REGEXP, Inflections::DASH, Inflections::DEMODULIZE_CONVERT_REGEXP, Inflections::EMPTY_STRING, Inflections::SLASH, Inflections::UNDERSCORE, Inflections::UNDERSCORE_CONVERT_REGEXP1, Inflections::UNDERSCORE_CONVERT_REGEXP2, Inflections::UNDERSCORE_CONVERT_REPLACE, Inflections::UNDERSCORE_MODULE_REGEXP, Inflections::VALID_CONSTANT_NAME_REGEXP
Instance Method Summary collapse
-
#associated_object_keys ⇒ Object
The keys in the associated model’s table related to this association.
-
#can_have_associated_objects?(obj) ⇒ Boolean
one_to_many associations can only have associated objects if none of the :keys options have a nil value.
-
#default_key ⇒ Object
Default foreign key name symbol for key in associated table that points to current table’s primary key.
-
#predicate_key ⇒ Object
(also: #qualified_key)
The hash key to use for the eager loading predicate (left side of IN (1, 2, 3)).
-
#primary_key ⇒ Object
The column in the current table that the key in the associated table references.
-
#qualified_primary_key ⇒ Object
#primary_key qualified by the current table.
-
#reciprocal_array? ⇒ Boolean
Whether the reciprocal of this association returns an array of objects instead of a single object, false for a one_to_many association.
-
#remove_before_destroy? ⇒ Boolean
Destroying one_to_many associated objects automatically deletes the foreign key.
-
#remove_should_check_existing? ⇒ Boolean
The one_to_many association needs to check that an object to be removed already is associated.
-
#set_reciprocal_to_self? ⇒ Boolean
One to many associations set the reciprocal to self when loading associated records.
Methods inherited from AssociationReflection
#_add_method, #_dataset_method, #_remove_all_method, #_remove_method, #_setter_method, #add_method, #associated_class, #association_method, #dataset_method, #dataset_need_primary_key?, #eager_graph_lazy_dataset?, #eager_limit_strategy, #eager_loader_key, #eager_loading_predicate_key, #eager_loading_use_associated_key?, #limit_and_offset, #need_associated_primary_key?, #predicate_keys, #qualify, #qualify_assoc, #qualify_cur, #reciprocal, #remove_all_method, #remove_method, #returns_array?, #select, #setter_method
Methods included from Inflections
clear, irregular, plural, singular, uncountable
Methods inherited from Hash
#&, #case, #hstore, #pg_json, #sql_expr, #sql_negate, #sql_or, #|, #~
Instance Method Details
#associated_object_keys ⇒ Object
The keys in the associated model’s table related to this association
372 373 374 |
# File 'lib/sequel/model/associations.rb', line 372 def associated_object_keys self[:keys] end |
#can_have_associated_objects?(obj) ⇒ Boolean
one_to_many associations can only have associated objects if none of the :keys options have a nil value.
378 379 380 |
# File 'lib/sequel/model/associations.rb', line 378 def can_have_associated_objects?(obj) !self[:primary_keys].any?{|k| obj.send(k).nil?} end |
#default_key ⇒ Object
Default foreign key name symbol for key in associated table that points to current table’s primary key.
384 385 386 |
# File 'lib/sequel/model/associations.rb', line 384 def default_key :"#{underscore(demodulize(self[:model].name))}_id" end |
#predicate_key ⇒ Object Also known as: qualified_key
The hash key to use for the eager loading predicate (left side of IN (1, 2, 3))
389 390 391 |
# File 'lib/sequel/model/associations.rb', line 389 def predicate_key cached_fetch(:predicate_key){qualify_assoc(self[:key])} end |
#primary_key ⇒ Object
The column in the current table that the key in the associated table references.
395 396 397 |
# File 'lib/sequel/model/associations.rb', line 395 def primary_key self[:primary_key] end |
#qualified_primary_key ⇒ Object
#primary_key qualified by the current table
400 401 402 |
# File 'lib/sequel/model/associations.rb', line 400 def qualified_primary_key cached_fetch(:qualified_primary_key){qualify_cur(primary_key)} end |
#reciprocal_array? ⇒ Boolean
Whether the reciprocal of this association returns an array of objects instead of a single object, false for a one_to_many association.
406 407 408 |
# File 'lib/sequel/model/associations.rb', line 406 def reciprocal_array? false end |
#remove_before_destroy? ⇒ Boolean
Destroying one_to_many associated objects automatically deletes the foreign key.
411 412 413 |
# File 'lib/sequel/model/associations.rb', line 411 def remove_before_destroy? false end |
#remove_should_check_existing? ⇒ Boolean
The one_to_many association needs to check that an object to be removed already is associated.
416 417 418 |
# File 'lib/sequel/model/associations.rb', line 416 def remove_should_check_existing? true end |
#set_reciprocal_to_self? ⇒ Boolean
One to many associations set the reciprocal to self when loading associated records.
421 422 423 |
# File 'lib/sequel/model/associations.rb', line 421 def set_reciprocal_to_self? true end |