Class: Sequel::Model::Associations::ManyToOneAssociationReflection

Inherits:

AssociationReflection

• Object
• Hash
• AssociationReflection
• Sequel::Model::Associations::ManyToOneAssociationReflection

Defined in:

lib/sequel/model/associations.rb

Constant Summary

Constants included from Inflections

Inflections::CAMELIZE_CONVERT_REGEXP, Inflections::CAMELIZE_MODULE_REGEXP, Inflections::DASH, Inflections::DEMODULIZE_CONVERT_REGEXP, Inflections::EMPTY_STRING, Inflections::SLASH, Inflections::UNDERSCORE, Inflections::UNDERSCORE_CONVERT_REGEXP1, Inflections::UNDERSCORE_CONVERT_REGEXP2, Inflections::UNDERSCORE_CONVERT_REPLACE, Inflections::UNDERSCORE_MODULE_REGEXP, Inflections::VALID_CONSTANT_NAME_REGEXP

Instance Method Summary

• #dataset_need_primary_key? ⇒ Boolean

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

• #default_key ⇒ Object

  Default foreign key name symbol for foreign key in current model’s table that points to the given association’s table’s primary key.

• #eager_graph_lazy_dataset? ⇒ Boolean

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

• #eager_loader_key ⇒ Object

  The key to use for the key hash when eager loading.

• #primary_key ⇒ Object

  The column in the associated table that the key in the current table references.

• #returns_array? ⇒ Boolean

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

Methods inherited from AssociationReflection

#_add_method, #_dataset_method, #_remove_all_method, #_remove_method, #_setter_method, #add_method, #associated_class, #association_method, #dataset_helper_method, #dataset_method, #eager_loading_use_associated_key?, #need_associated_primary_key?, #reciprocal, #reciprocal_array?, #remove_all_method, #remove_method, #select, #set_reciprocal_to_self?, #setter_method

Methods included from Inflections

clear, irregular, plural, singular, uncountable

Methods inherited from Hash

#&, #case, #sql_expr, #sql_negate, #sql_or, #|, #~

Instance Method Details

#dataset_need_primary_key? ⇒ Boolean

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

Returns:

• (Boolean)

# File 'lib/sequel/model/associations.rb', line 156

def dataset_need_primary_key?
  false
end

#default_key ⇒ Object

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 162

def default_key
  :"#{self[:name]}_id"
end

#eager_graph_lazy_dataset? ⇒ Boolean

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

Returns:

• (Boolean)

# File 'lib/sequel/model/associations.rb', line 168

def eager_graph_lazy_dataset?
  self[:key].nil?
end

#eager_loader_key ⇒ Object

The key to use for the key hash when eager loading

# File 'lib/sequel/model/associations.rb', line 173

def eager_loader_key
  self[:key]
end

#primary_key ⇒ Object

The column in the associated table that the key in the current table references.

# File 'lib/sequel/model/associations.rb', line 178

def primary_key
 self[:primary_key] ||= associated_class.primary_key
end

#returns_array? ⇒ Boolean

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

Returns:

• (Boolean)

# File 'lib/sequel/model/associations.rb', line 184

def returns_array?
  false
end