#primary_key
[ GitHub ]# File 'activerecord/lib/active_record/table_metadata.rb', line 13
def primary_key klass&.primary_key end
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Relationships & Source Files | |
Inherits: | Object |
Defined in: | activerecord/lib/active_record/table_metadata.rb |
Alias for #reflect_on_aggregation.
TableMetadata
# File 'activerecord/lib/active_record/table_metadata.rb', line 7
def initialize(klass, arel_table, reflection = nil) @klass = klass @arel_table = arel_table @reflection = reflection end
# File 'activerecord/lib/active_record/table_metadata.rb', line 78
attr_reader :arel_table
# File 'activerecord/lib/active_record/table_metadata.rb', line 5
delegate :join_primary_key, :join_primary_type, :join_foreign_key, :join_foreign_type, to: :reflection
# File 'activerecord/lib/active_record/table_metadata.rb', line 5
delegate :join_primary_key, :join_primary_type, :join_foreign_key, :join_foreign_type, to: :reflection
# File 'activerecord/lib/active_record/table_metadata.rb', line 5
delegate :join_primary_key, :join_primary_type, :join_foreign_key, :join_foreign_type, to: :reflection
# File 'activerecord/lib/active_record/table_metadata.rb', line 5
delegate :join_primary_key, :join_primary_type, :join_foreign_key, :join_foreign_type, to: :reflection
# File 'activerecord/lib/active_record/table_metadata.rb', line 81
attr_reader :klass, :reflection
Boolean
(readonly)
# File 'activerecord/lib/active_record/table_metadata.rb', line 53
def polymorphic_association? reflection&.polymorphic? end
# File 'activerecord/lib/active_record/table_metadata.rb', line 81
attr_reader :klass, :reflection
Boolean
(readonly)
# File 'activerecord/lib/active_record/table_metadata.rb', line 61
def through_association? reflection&.through_reflection? end
Alias for #reflect_on_aggregation.
# File 'activerecord/lib/active_record/table_metadata.rb', line 68
alias :aggregated_with? :reflect_on_aggregation
# File 'activerecord/lib/active_record/table_metadata.rb', line 29
def associated_table(table_name) reflection = klass._reflect_on_association(table_name) || klass._reflect_on_association(table_name.singularize) if !reflection && table_name == arel_table.name return self end if reflection association_klass = reflection.klass unless reflection.polymorphic? elsif block_given? association_klass = yield table_name end if association_klass arel_table = association_klass.arel_table arel_table = arel_table.alias(table_name) if arel_table.name != table_name TableMetadata.new(association_klass, arel_table, reflection) else type_caster = TypeCaster::Connection.new(klass, table_name) arel_table = Arel::Table.new(table_name, type_caster: type_caster) TableMetadata.new(nil, arel_table, reflection) end end
Boolean
# File 'activerecord/lib/active_record/table_metadata.rb', line 25
def associated_with?(table_name) klass&._reflect_on_association(table_name) end
Boolean
# File 'activerecord/lib/active_record/table_metadata.rb', line 21
def has_column?(column_name) klass&.columns_hash&.key?(column_name) end
# File 'activerecord/lib/active_record/table_metadata.rb', line 57
def polymorphic_name_association reflection&.polymorphic_name end
# File 'activerecord/lib/active_record/table_metadata.rb', line 70
def predicate_builder if klass klass.predicate_builder.with(self) else PredicateBuilder.new(self) end end
# File 'activerecord/lib/active_record/table_metadata.rb', line 13
def primary_key klass&.primary_key end
# File 'activerecord/lib/active_record/table_metadata.rb', line 65
def reflect_on_aggregation(aggregation_name) klass&.reflect_on_aggregation(aggregation_name) end
# File 'activerecord/lib/active_record/table_metadata.rb', line 17
def type(column_name) arel_table.type_for_attribute(column_name) end