Module: Hyrax::BasedNearFieldBehavior

Included in:
Forms::ResourceForm
Defined in:
app/forms/concerns/hyrax/based_near_field_behavior.rb

Overview

Form-side handling for the based_near (location) controlled vocabulary field. The form expects a ControlledVocabularies::Location object as input and produces a hash like those used with accepts_nested_attributes_for.

The deserialize! override below is the canonical Field Behavior pattern for nested-attribute properties: a module prepended onto every ResourceForm subclass that strips its own key from the rewritten params so Reform's from_hash doesn't write the raw _attributes payload to a same-named property. Calling super first lets the chain compose — every Field Behavior runs its own delete, then control falls through to Reform's base deserialize! (the <name>_attributes rename pass).

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(descendant) ⇒ Object 



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# File 'app/forms/concerns/hyrax/based_near_field_behavior.rb', line 15

def self.included(descendant)
  descendant.property :based_near_attributes, virtual: true, populator: :based_near_attributes_populator, prepopulator: :based_near_attributes_prepopulator
end

Instance Method Details

#deserialize!(params) ⇒ Object

Skipping based_near in deserialize avoids a race condition where it would otherwise end up in an inconsistent state during validation; the field is handled exclusively by the populator on based_near_attributes.

Override deserialize! (not deserialize) so the strip runs after Reform's FormBuilderMethods#deserialize! has renamed based_near_attributes to based_near, but before from_hash reads property values from the params. Stripping in deserialize would happen before the rename, and the rename would put the key back; from_hash would then write raw fragment hashes onto the form's based_near field, breaking the populator's contract.

Mutate params in place — never replace it. Reform's validate(params) exposes the same hash via form.input_params, and downstream callers (WorksControllerBehavior#update_valkyrie_work reading form.input_params["permissions"]) read from that exact reference after the rename.



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# File 'app/forms/concerns/hyrax/based_near_field_behavior.rb', line 37

def deserialize!(params)
  result = super
  if result.respond_to?(:delete)
    result.delete('based_near')
    result.delete(:based_near)
  end
  result
end