Class | Sequel::Model::Associations::ManyToOneAssociationReflection |
In: |
lib/sequel/model/associations.rb
|
Parent: | AssociationReflection |
FINALIZE_SETTINGS | = | superclass::FINALIZE_SETTINGS.merge( :primary_key=>:primary_key, :primary_keys=>:primary_keys, :primary_key_method=>:primary_key_method, :primary_key_methods=>:primary_key_methods, :qualified_primary_key=>:qualified_primary_key, :reciprocal_type=>:reciprocal_type |
many_to_one associations can only have associated objects if none of the :keys options have a nil value.
# File lib/sequel/model/associations.rb, line 802 802: def can_have_associated_objects?(obj) 803: !self[:keys].any?{|k| obj.get_column_value(k).nil?} 804: end
Whether the dataset needs a primary key to function, false for many_to_one associations.
# File lib/sequel/model/associations.rb, line 807 807: def dataset_need_primary_key? 808: false 809: end
Default foreign key name symbol for foreign key in current model‘s table that points to the given association‘s table‘s primary key.
# File lib/sequel/model/associations.rb, line 813 813: def default_key 814: 815: "#{self[:name]}_id" 816: end
Whether to eagerly graph a lazy dataset, true for many_to_one associations only if the key is nil.
# File lib/sequel/model/associations.rb, line 819 819: def eager_graph_lazy_dataset? 820: self[:key].nil? 821: end
many_to_one associations don‘t need an eager_graph limit strategy
# File lib/sequel/model/associations.rb, line 824 824: def eager_graph_limit_strategy(_) 825: nil 826: end
many_to_one associations don‘t need an eager limit strategy
# File lib/sequel/model/associations.rb, line 829 829: def eager_limit_strategy 830: nil 831: end
many_to_one associations don‘t need a filter by associations limit strategy
# File lib/sequel/model/associations.rb, line 834 834: def filter_by_associations_limit_strategy 835: nil 836: end
# File lib/sequel/model/associations.rb, line 846 846: def finalize_settings 847: FINALIZE_SETTINGS 848: end
The expression to use on the left hand side of the IN lookup when eager loading
# File lib/sequel/model/associations.rb, line 851 851: def predicate_key 852: cached_fetch(:predicate_key){qualified_primary_key} 853: end
The column(s) in the associated table that the key in the current table references (either a symbol or an array).
# File lib/sequel/model/associations.rb, line 856 856: def primary_key 857: cached_fetch(:primary_key){associated_class.primary_key || raise(Error, "no primary key specified for #{associated_class.inspect}")} 858: end
The method symbol or array of method symbols to call on the associated object to get the value to use for the foreign keys.
# File lib/sequel/model/associations.rb, line 868 868: def primary_key_method 869: cached_fetch(:primary_key_method){primary_key} 870: end
The array of method symbols to call on the associated object to get the value to use for the foreign keys.
# File lib/sequel/model/associations.rb, line 874 874: def primary_key_methods 875: cached_fetch(:primary_key_methods){Array(primary_key_method)} 876: end
The columns in the associated table that the key in the current table references (always an array).
# File lib/sequel/model/associations.rb, line 861 861: def primary_keys 862: cached_fetch(:primary_keys){Array(primary_key)} 863: end
primary_key qualified by the associated table
# File lib/sequel/model/associations.rb, line 879 879: def qualified_primary_key 880: cached_fetch(:qualified_primary_key){self[:qualify] == false ? primary_key : qualify_assoc(primary_key)} 881: end
True only if the reciprocal is a one_to_many association.
# File lib/sequel/model/associations.rb, line 884 884: def reciprocal_array? 885: !set_reciprocal_to_self? 886: end
Whether this association returns an array of objects instead of a single object, false for a many_to_one association.
# File lib/sequel/model/associations.rb, line 890 890: def returns_array? 891: false 892: end