Class: Granite::Form::Model::Associations::NestedAttributes::NestedAttributesMethods
- Inherits:
-
Object
- Object
- Granite::Form::Model::Associations::NestedAttributes::NestedAttributesMethods
- Defined in:
- lib/granite/form/model/associations/nested_attributes.rb
Overview
rubocop:disable Metrics/ClassLength
Constant Summary collapse
- REJECT_ALL_BLANK_PROC =
proc { |attributes| attributes.all? do |key, value| key == DESTROY_ATTRIBUTE || value.blank? end }
Class Method Summary collapse
- .accepts_nested_attributes_for(klass, *attr_names) ⇒ Object
-
.assign_nested_attributes_for_collection_association(object, association_name, attributes_collection) ⇒ Object
rubocop:disable Layout/LineLength,Metrics/MethodLength.
- .assign_nested_attributes_for_one_to_one_association(object, association_name, attributes) ⇒ Object
- .assign_to(object, attributes) ⇒ Object
- .call_reject_if(object, association_name, attributes) ⇒ Object
- .check_record_limit!(limit, attributes_collection) ⇒ Object
- .destroy_flag?(hash) ⇒ Boolean
- .primary_name_for(klass) ⇒ Object
- .reject_new_object?(object, association_name, attributes, options) ⇒ Boolean
- .unassignable_keys(object) ⇒ Object
Class Method Details
.accepts_nested_attributes_for(klass, *attr_names) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 46 def self.accepts_nested_attributes_for(klass, *attr_names) = { allow_destroy: false, update_only: false } .update(attr_names.) .assert_valid_keys(:allow_destroy, :reject_if, :limit, :update_only) [:reject_if] = REJECT_ALL_BLANK_PROC if [:reject_if] == :all_blank NestedAttributesMethodsExtension.ensure_extended!(klass) attr_names.each do |association_name| reflection = klass.reflect_on_association(association_name) unless reflection raise ArgumentError, "No association found for name `#{association_name}'. Has it been defined yet?" end klass. = klass . .merge(association_name.to_sym => ) should_validate_nested = klass.respond_to?(:validates_nested) && !klass.validates_nested?(association_name) klass.validates_nested(association_name) if should_validate_nested type = (reflection.collection? ? :collection : :one_to_one) klass.nested_attributes_methods_module.class_eval <<-METHOD, __FILE__, __LINE__ + 1 def #{association_name}_attributes=(attributes) Granite::Form::Model::Associations::NestedAttributes::NestedAttributesMethods .assign_nested_attributes_for_#{type}_association(self, :#{association_name}, attributes) end METHOD end end |
.assign_nested_attributes_for_collection_association(object, association_name, attributes_collection) ⇒ Object
rubocop:disable Layout/LineLength,Metrics/MethodLength
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 115 def self.assign_nested_attributes_for_collection_association(object, association_name, attributes_collection) # rubocop:disable Layout/LineLength,Metrics/MethodLength = object.[association_name] unless attributes_collection.is_a?(Hash) || attributes_collection.is_a?(Array) raise ArgumentError, "Hash or Array expected, got #{attributes_collection.class.name} (#{attributes_collection.inspect})" # rubocop:disable Layout/LineLength end check_record_limit!([:limit], attributes_collection) association = object.association(association_name) primary_attribute_name = primary_name_for(association.reflection.klass) unless primary_attribute_name raise Granite::Form::UndefinedPrimaryAttribute.new(object.class, association_name) end if attributes_collection.is_a? Hash keys = attributes_collection.keys attributes_collection = if keys.include?(primary_attribute_name) || keys.include?(primary_attribute_name.to_sym) [attributes_collection] else attributes_collection.values end end attributes_collection.each do |attributes| attributes = attributes.with_indifferent_access if attributes[primary_attribute_name].blank? association.build(attributes.except(*unassignable_keys(object))) unless reject_new_object?( object, association_name, attributes, ) else existing_record = association.target.detect do |record| primary_attribute_value = record.attribute(primary_attribute_name) .type_definition.prepare(attributes[primary_attribute_name]) record.primary_attribute == primary_attribute_value end if existing_record assign_to(existing_record, attributes) unless call_reject_if(object, association_name, attributes) association.target.delete(existing_record) if destroy_flag?(attributes) && [:allow_destroy] elsif association.reflection. unless reject_new_object?(object, association_name, attributes, ) association.reflection.klass.with_sanitize(false) do association.build(attributes.except(DESTROY_ATTRIBUTE)) end end else raise Granite::Form::ObjectNotFound.new(object, association_name, attributes[primary_attribute_name]) end end end end |
.assign_nested_attributes_for_one_to_one_association(object, association_name, attributes) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 80 def self.assign_nested_attributes_for_one_to_one_association(object, association_name, attributes) = object.[association_name] attributes = attributes.with_indifferent_access association = object.association(association_name) existing_record = association.target primary_attribute_name = primary_name_for(association.reflection.klass) if existing_record primary_attribute = existing_record.attribute(primary_attribute_name) if primary_attribute primary_attribute_value = primary_attribute.type_definition .prepare(attributes[primary_attribute_name]) end end should_assign = !primary_attribute || [:update_only] || existing_record.primary_attribute == primary_attribute_value if existing_record && should_assign assign_to(existing_record, attributes) unless call_reject_if(object, association_name, attributes) association.clear if destroy_flag?(attributes) && [:allow_destroy] elsif attributes[primary_attribute_name].present? raise Granite::Form::ObjectNotFound.new(object, association_name, attributes[primary_attribute_name]) elsif !reject_new_object?(object, association_name, attributes, ) assignable_attributes = attributes.except(*unassignable_keys(object)) if existing_record && !existing_record.persisted? existing_record.assign_attributes(assignable_attributes) else association.build(assignable_attributes) end end end |
.assign_to(object, attributes) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 188 def self.assign_to(object, attributes) object.assign_attributes(attributes.except(*unassignable_keys(object))) end |
.call_reject_if(object, association_name, attributes) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 200 def self.call_reject_if(object, association_name, attributes) case callback = object.[association_name][:reject_if] when Symbol method(callback).arity.zero? ? send(callback) : send(callback, attributes) when Proc callback.call(attributes) end end |
.check_record_limit!(limit, attributes_collection) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 173 def self.check_record_limit!(limit, attributes_collection) limit = case limit when Symbol send(limit) when Proc limit.call else limit end return unless limit && attributes_collection.size > limit raise Granite::Form::TooManyObjects.new(limit, attributes_collection.size) end |
.destroy_flag?(hash) ⇒ Boolean
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 192 def self.destroy_flag?(hash) Types::Boolean.typecast(hash[DESTROY_ATTRIBUTE]) end |
.primary_name_for(klass) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 213 def self.primary_name_for(klass) klass < Granite::Form::Model ? klass.primary_name : 'id' end |
.reject_new_object?(object, association_name, attributes, options) ⇒ Boolean
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 196 def self.reject_new_object?(object, association_name, attributes, ) [:update_only] || destroy_flag?(attributes) || call_reject_if(object, association_name, attributes) end |
.unassignable_keys(object) ⇒ Object
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# File 'lib/granite/form/model/associations/nested_attributes.rb', line 209 def self.unassignable_keys(object) [primary_name_for(object.class), DESTROY_ATTRIBUTE].compact end |