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 803 803: def can_have_associated_objects?(obj) 804: !self[:keys].any?{|k| obj.get_column_value(k).nil?} 805: end
Whether the dataset needs a primary key to function, false for many_to_one associations.
# File lib/sequel/model/associations.rb, line 808 808: def dataset_need_primary_key? 809: false 810: 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 814 814: def default_key 815: 816: "#{self[:name]}_id" 817: 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 820 820: def eager_graph_lazy_dataset? 821: self[:key].nil? 822: end
many_to_one associations don‘t need an eager_graph limit strategy
# File lib/sequel/model/associations.rb, line 825 825: def eager_graph_limit_strategy(_) 826: nil 827: end
many_to_one associations don‘t need an eager limit strategy
# File lib/sequel/model/associations.rb, line 830 830: def eager_limit_strategy 831: nil 832: end
many_to_one associations don‘t need a filter by associations limit strategy
# File lib/sequel/model/associations.rb, line 835 835: def filter_by_associations_limit_strategy 836: nil 837: end
# File lib/sequel/model/associations.rb, line 847 847: def finalize_settings 848: FINALIZE_SETTINGS 849: end
The expression to use on the left hand side of the IN lookup when eager loading
# File lib/sequel/model/associations.rb, line 852 852: def predicate_key 853: cached_fetch(:predicate_key){qualified_primary_key} 854: 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 857 857: def primary_key 858: cached_fetch(:primary_key){associated_class.primary_key || raise(Error, "no primary key specified for #{associated_class.inspect}")} 859: 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 869 869: def primary_key_method 870: cached_fetch(:primary_key_method){primary_key} 871: 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 875 875: def primary_key_methods 876: cached_fetch(:primary_key_methods){Array(primary_key_method)} 877: 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 862 862: def primary_keys 863: cached_fetch(:primary_keys){Array(primary_key)} 864: end
primary_key qualified by the associated table
# File lib/sequel/model/associations.rb, line 880 880: def qualified_primary_key 881: cached_fetch(:qualified_primary_key){self[:qualify] == false ? primary_key : qualify_assoc(primary_key)} 882: end
True only if the reciprocal is a one_to_many association.
# File lib/sequel/model/associations.rb, line 885 885: def reciprocal_array? 886: !set_reciprocal_to_self? 887: 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 891 891: def returns_array? 892: false 893: end