The alias to use for the associated key when eagerly loading
# File lib/sequel/model/associations.rb, line 491 def associated_key_alias self[:left_key_alias] end
The column to use for the associated key when eagerly loading
# File lib/sequel/model/associations.rb, line 496 def associated_key_column self[:left_key] end
Alias of #right_primary_keys
# File lib/sequel/model/associations.rb, line 501 def associated_object_keys right_primary_keys 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 507 def can_have_associated_objects?(obj) !self[:left_primary_keys].any?{|k| obj.send(k).nil?} end
The default associated key alias(es) to use when eager loading associations via eager.
# File lib/sequel/model/associations.rb, line 513 def default_associated_key_alias self[:uses_left_composite_keys] ? (0...self[:left_keys].length).map{|i| :"x_foreign_key_#{i}_x"} : :x_foreign_key_x end
Default name symbol for the join table.
# File lib/sequel/model/associations.rb, line 518 def default_join_table [self[:class_name], self[:model].name].map{|i| underscore(pluralize(demodulize(i)))}.sort.join('_').to_sym 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 524 def default_left_key :"#{underscore(demodulize(self[:model].name))}_id" 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 530 def default_right_key :"#{singularize(self[:name])}_id" end
many_to_many associations need to select a key in an associated table to eagerly load
# File lib/sequel/model/associations.rb, line 547 def eager_loading_use_associated_key? true end
The join table itself, unless it is aliased, in which case this is the alias.
# File lib/sequel/model/associations.rb, line 559 def join_table_alias cached_fetch(:join_table_alias) do s, a = split_join_table_alias a || s end 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 553 def join_table_source cached_fetch(:join_table_source){split_join_table_alias[0]} 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 569 def need_associated_primary_key? true 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 536 def predicate_key cached_fetch(:predicate_key){qualify(join_table_alias, self[:left_key])} end
The right key qualified by the join table.
# File lib/sequel/model/associations.rb, line 542 def qualified_right_key cached_fetch(:qualified_right_key){qualify(join_table_alias, self[:right_key])} end
#right_primary_key qualified by the associated table
# File lib/sequel/model/associations.rb, line 593 def qualified_right_primary_key cached_fetch(:qualified_right_primary_key){qualify_assoc(right_primary_key)} end
Returns the reciprocal association symbol, if one exists.
# File lib/sequel/model/associations.rb, line 574 def reciprocal cached_fetch(:reciprocal) do left_keys = self[:left_keys] right_keys = self[:right_keys] join_table = self[:join_table] recip = nil associated_class.all_association_reflections.each do |assoc_reflect| if assoc_reflect[:type] == :many_to_many && assoc_reflect[:left_keys] == right_keys && assoc_reflect[:right_keys] == left_keys && assoc_reflect[:join_table] == join_table && assoc_reflect.associated_class == self[:model] recip = assoc_reflect[:name] break end end recip end end
The primary key column(s) to use in the associated table (can be symbol or array).
# File lib/sequel/model/associations.rb, line 598 def right_primary_key cached_fetch(:right_primary_key){associated_class.primary_key} 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 609 def right_primary_key_method cached_fetch(:right_primary_key_method){right_primary_key} 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 615 def right_primary_key_methods cached_fetch(:right_primary_key_methods){Array(right_primary_key_method)} end
The primary key columns to use in the associated table (always array).
# File lib/sequel/model/associations.rb, line 603 def right_primary_keys cached_fetch(:right_primary_keys){Array(right_primary_key)} end
The columns to select when loading the association, associated_class.table_name.* by default.
# File lib/sequel/model/associations.rb, line 620 def select cached_fetch(:select){Sequel::SQL::ColumnAll.new(associated_class.table_name)} end
Split the join table into source and alias parts.
# File lib/sequel/model/associations.rb, line 627 def split_join_table_alias associated_class.dataset.split_alias(self[:join_table]) end