# File lib/sequel/model/associations.rb 1045 def primary_key 1046 self[:primary_key] 1047 end
class Sequel::Model::Associations::OneToManyAssociationReflection
Constants
- FINALIZE_SETTINGS
Public Instance Methods
Support a correlated subquery limit strategy when using eager_graph.
Sequel::Model::Associations::AssociationReflection#apply_eager_graph_limit_strategy
# File lib/sequel/model/associations.rb 995 def apply_eager_graph_limit_strategy(strategy, ds) 996 case strategy 997 when :correlated_subquery 998 apply_correlated_subquery_limit_strategy(ds) 999 else 1000 super 1001 end 1002 end
The keys in the associated model's table related to this association
# File lib/sequel/model/associations.rb 1005 def associated_object_keys 1006 self[:keys] 1007 end
one_to_many associations can only have associated objects if none of the :keys options have a nil value.
# File lib/sequel/model/associations.rb 1011 def can_have_associated_objects?(obj) 1012 !self[:primary_keys].any?{|k| obj.get_column_value(k).nil?} 1013 end
one_to_many and one_to_one associations can be clones
# File lib/sequel/model/associations.rb 1016 def cloneable?(ref) 1017 ref[:type] == :one_to_many || ref[:type] == :one_to_one 1018 end
Default foreign key name symbol for key in associated table that points to current table's primary key.
# File lib/sequel/model/associations.rb 1022 def default_key 1023 :"#{underscore(demodulize(self[:model].name))}_id" 1024 end
# File lib/sequel/model/associations.rb 1029 def finalize_settings 1030 FINALIZE_SETTINGS 1031 end
Handle silent failure of add/remove methods if raise_on_save_failure is false.
# File lib/sequel/model/associations.rb 1034 def handle_silent_modification_failure? 1035 self[:raise_on_save_failure] == false 1036 end
The hash key to use for the eager loading predicate (left side of IN (1, 2, 3))
# File lib/sequel/model/associations.rb 1039 def predicate_key 1040 cached_fetch(:predicate_key){qualify_assoc(self[:key])} 1041 end
The column in the current table that the key in the associated table references.
primary_key
qualified by the current table
# File lib/sequel/model/associations.rb 1050 def qualified_primary_key 1051 cached_fetch(:qualified_primary_key){qualify_cur(primary_key)} 1052 end
Whether the reciprocal of this association returns an array of objects instead of a single object, false for a one_to_many association.
# File lib/sequel/model/associations.rb 1056 def reciprocal_array? 1057 false 1058 end
Destroying one_to_many associated objects automatically deletes the foreign key.
# File lib/sequel/model/associations.rb 1061 def remove_before_destroy? 1062 false 1063 end
The one_to_many association needs to check that an object to be removed already is associated.
# File lib/sequel/model/associations.rb 1066 def remove_should_check_existing? 1067 true 1068 end
One to many associations set the reciprocal to self when loading associated records.
# File lib/sequel/model/associations.rb 1071 def set_reciprocal_to_self? 1072 true 1073 end
Private Instance Methods
Support correlated subquery strategy when filtering by limited associations.
Sequel::Model::Associations::AssociationReflection#apply_filter_by_associations_limit_strategy
# File lib/sequel/model/associations.rb 1095 def apply_filter_by_associations_limit_strategy(ds) 1096 case filter_by_associations_limit_strategy 1097 when :correlated_subquery 1098 apply_correlated_subquery_limit_strategy(ds) 1099 else 1100 super 1101 end 1102 end
# File lib/sequel/model/associations.rb 1104 def filter_by_associations_conditions_associated_keys 1105 qualify(associated_class.table_name, self[:keys]) 1106 end
# File lib/sequel/model/associations.rb 1108 def filter_by_associations_conditions_key 1109 qualify(self[:model].table_name, self[:primary_key_column]) 1110 end
# File lib/sequel/model/associations.rb 1112 def filter_by_associations_limit_alias_key 1113 Array(filter_by_associations_limit_key) 1114 end
# File lib/sequel/model/associations.rb 1116 def filter_by_associations_limit_aliases 1117 filter_by_associations_limit_alias_key.map(&:column) 1118 end
# File lib/sequel/model/associations.rb 1120 def filter_by_associations_limit_key 1121 qualify(associated_class.table_name, associated_class.primary_key) 1122 end
# File lib/sequel/model/associations.rb 1124 def predicate_key_methods 1125 self[:primary_keys] 1126 end
Sequel::Model::Associations::AssociationReflection#reciprocal_association?
# File lib/sequel/model/associations.rb 1128 def reciprocal_association?(assoc_reflect) 1129 super && self[:keys] == assoc_reflect[:keys] && primary_key == assoc_reflect.primary_key 1130 end
The reciprocal type of a one_to_many association is a many_to_one association.
# File lib/sequel/model/associations.rb 1133 def reciprocal_type 1134 :many_to_one 1135 end
Support automatic use of correlated subqueries if :ruby option is best available option, the database supports them, and either the associated class has a non-composite primary key or the database supports multiple columns in IN.
Sequel::Model::Associations::AssociationReflection#true_eager_graph_limit_strategy
# File lib/sequel/model/associations.rb 1140 def true_eager_graph_limit_strategy 1141 r = super 1142 ds = associated_dataset 1143 if r == :ruby && ds.supports_limits_in_correlated_subqueries? && (Array(associated_class.primary_key).length == 1 || ds.supports_multiple_column_in?) && (!offset || ds.supports_offsets_in_correlated_subqueries?) 1144 :correlated_subquery 1145 else 1146 r 1147 end 1148 end