Class Sequel::Model::Associations::ManyToOneAssociationReflection
In: lib/sequel/model/associations.rb
Parent: AssociationReflection

Methods

Public Instance methods

associated_object_keys()

Alias for primary_keys

many_to_one associations can only have associated objects if none of the :keys options have a nil value.

[Source]

     # File lib/sequel/model/associations.rb, line 229
229:         def can_have_associated_objects?(obj)
230:           !self[:keys].any?{|k| obj.send(k).nil?}
231:         end

Whether the dataset needs a primary key to function, false for many_to_one associations.

[Source]

     # File lib/sequel/model/associations.rb, line 234
234:         def dataset_need_primary_key?
235:           false
236:         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.

[Source]

     # File lib/sequel/model/associations.rb, line 240
240:         def default_key
241: 
242:           "#{self[:name]}_id"
243:         end

Whether to eagerly graph a lazy dataset, true for many_to_one associations only if the key is nil.

[Source]

     # File lib/sequel/model/associations.rb, line 246
246:         def eager_graph_lazy_dataset?
247:           self[:key].nil?
248:         end

many_to_one associations don‘t need an eager limit strategy

[Source]

     # File lib/sequel/model/associations.rb, line 251
251:         def eager_limit_strategy
252:           nil
253:         end

The key to use for the key hash when eager loading

[Source]

     # File lib/sequel/model/associations.rb, line 256
256:         def eager_loader_key
257:           self[:eager_loader_key] ||= self[:key]
258:         end

The column(s) in the associated table that the key in the current table references (either a symbol or an array).

[Source]

     # File lib/sequel/model/associations.rb, line 261
261:         def primary_key
262:          self[:primary_key] ||= associated_class.primary_key
263:         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.

[Source]

     # File lib/sequel/model/associations.rb, line 273
273:         def primary_key_method
274:          self[:primary_key_method] ||= primary_key
275:         end

The array of method symbols to call on the associated object to get the value to use for the foreign keys.

[Source]

     # File lib/sequel/model/associations.rb, line 279
279:         def primary_key_methods
280:          self[:primary_key_methods] ||= Array(primary_key_method)
281:         end

The columns in the associated table that the key in the current table references (always an array).

[Source]

     # File lib/sequel/model/associations.rb, line 266
266:         def primary_keys
267:          self[:primary_keys] ||= Array(primary_key)
268:         end

primary_key qualified by the associated table

[Source]

     # File lib/sequel/model/associations.rb, line 284
284:         def qualified_primary_key
285:           self[:qualified_primary_key] ||= self[:qualify] == false ? primary_key : qualify_assoc(primary_key)
286:         end

True only if the reciprocal is a one_to_many association.

[Source]

     # File lib/sequel/model/associations.rb, line 289
289:         def reciprocal_array?
290:           !set_reciprocal_to_self?
291:         end

Whether this association returns an array of objects instead of a single object, false for a many_to_one association.

[Source]

     # File lib/sequel/model/associations.rb, line 295
295:         def returns_array?
296:           false
297:         end

True only if the reciprocal is a one_to_one association.

[Source]

     # File lib/sequel/model/associations.rb, line 300
300:         def set_reciprocal_to_self?
301:           reciprocal
302:           self[:reciprocal_type] == :one_to_one
303:         end

[Validate]