Class | Sequel::Model::Associations::ManyToManyAssociationReflection |
In: |
lib/sequel/model/associations.rb
|
Parent: | AssociationReflection |
The alias to use for the associated key when eagerly loading
# File lib/sequel/model/associations.rb, line 523 523: def associated_key_alias 524: self[:left_key_alias] 525: end
The column to use for the associated key when eagerly loading
# File lib/sequel/model/associations.rb, line 528 528: def associated_key_column 529: self[:left_key] 530: end
Alias of right_primary_keys
# File lib/sequel/model/associations.rb, line 533 533: def associated_object_keys 534: right_primary_keys 535: end
many_to_many associations can only have associated objects if none of the :left_primary_keys options have a nil value.
# File lib/sequel/model/associations.rb, line 539 539: def can_have_associated_objects?(obj) 540: !self[:left_primary_keys].any?{|k| obj.send(k).nil?} 541: end
The default associated key alias(es) to use when eager loading associations via eager.
# File lib/sequel/model/associations.rb, line 545 545: def default_associated_key_alias 546: self[:uses_left_composite_keys] ? (0...self[:left_keys].length).map{|i| "x_foreign_key_#{i}_x""x_foreign_key_#{i}_x"} : :x_foreign_key_x 547: end
Default name symbol for the join table.
# File lib/sequel/model/associations.rb, line 550 550: def default_join_table 551: [self[:class_name], self[:model].name].map{|i| underscore(pluralize(demodulize(i)))}.sort.join('_').to_sym 552: end
Default foreign key name symbol for key in join table that points to current table‘s primary key (or :left_primary_key column).
# File lib/sequel/model/associations.rb, line 556 556: def default_left_key 557: 558: "#{underscore(demodulize(self[:model].name))}_id" 559: end
Default foreign key name symbol for foreign key in join table that points to the association‘s table‘s primary key (or :right_primary_key column).
# File lib/sequel/model/associations.rb, line 562 562: def default_right_key 563: 564: "#{singularize(self[:name])}_id" 565: end
The join table itself, unless it is aliased, in which case this is the alias.
# File lib/sequel/model/associations.rb, line 591 591: def join_table_alias 592: cached_fetch(:join_table_alias) do 593: s, a = split_join_table_alias 594: a || s 595: end 596: end
The source of the join table. This is the join table itself, unless it is aliased, in which case it is the unaliased part.
# File lib/sequel/model/associations.rb, line 585 585: def join_table_source 586: cached_fetch(:join_table_source){split_join_table_alias[0]} 587: end
Whether the associated object needs a primary key to be added/removed, true for many_to_many associations.
# File lib/sequel/model/associations.rb, line 601 601: def need_associated_primary_key? 602: true 603: end
The hash key to use for the eager loading predicate (left side of IN (1, 2, 3)). The left key qualified by the join table.
# File lib/sequel/model/associations.rb, line 568 568: def predicate_key 569: cached_fetch(:predicate_key){qualify(join_table_alias, self[:left_key])} 570: end
The right key qualified by the join table.
# File lib/sequel/model/associations.rb, line 574 574: def qualified_right_key 575: cached_fetch(:qualified_right_key){qualify(join_table_alias, self[:right_key])} 576: end
right_primary_key qualified by the associated table
# File lib/sequel/model/associations.rb, line 606 606: def qualified_right_primary_key 607: cached_fetch(:qualified_right_primary_key){qualify_assoc(right_primary_key)} 608: end
The primary key column(s) to use in the associated table (can be symbol or array).
# File lib/sequel/model/associations.rb, line 611 611: def right_primary_key 612: cached_fetch(:right_primary_key){associated_class.primary_key} 613: end
The method symbol or array of method symbols to call on the associated objects to get the foreign key values for the join table.
# File lib/sequel/model/associations.rb, line 622 622: def right_primary_key_method 623: cached_fetch(:right_primary_key_method){right_primary_key} 624: end
The array of method symbols to call on the associated objects to get the foreign key values for the join table.
# File lib/sequel/model/associations.rb, line 628 628: def right_primary_key_methods 629: cached_fetch(:right_primary_key_methods){Array(right_primary_key_method)} 630: end