Class: Administrate::Field::BelongsTo

Inherits:
Associative show all
Defined in:
lib/administrate/field/belongs_to.rb

Direct Known Subclasses

Polymorphic

Instance Attribute Summary

Attributes inherited from Base

#attribute, #data, #options, #page, #resource

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Associative

associated_class, #associated_class, associated_class_name, #associated_class_name, association_primary_key_for, #display_associated_resource, foreign_key_for, #html_controller, reflection

Methods inherited from Base

associative?, field_type, html_class, #html_class, #html_controller, #initialize, #name, #read_value, #required?, searchable?, #to_partial_path, with_options

Constructor Details

This class inherits a constructor from Administrate::Field::Base

Class Method Details

.eager_load? ⇒ Boolean

Returns:



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# File 'lib/administrate/field/belongs_to.rb', line 16

def self.eager_load?
  true
end

.permitted_attribute(attr, options = {}) ⇒ Object 



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# File 'lib/administrate/field/belongs_to.rb', line 6

def self.permitted_attribute(attr, options = {})
  resource_class = options[:resource_class]
  if resource_class
    foreign_key_for(resource_class, attr)
  else
    Administrate.warn_of_missing_resource_class
    :"#{attr}_id"
  end
end

Instance Method Details

#associated_resource_options ⇒ Object 



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# File 'lib/administrate/field/belongs_to.rb', line 24

def associated_resource_options
  candidate_resources.map do |resource|
    [
      display_candidate_resource(resource),
      resource.send(association_primary_key)
    ]
  end
end

#include_blank_option ⇒ Object 



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# File 'lib/administrate/field/belongs_to.rb', line 37

def include_blank_option
  options.fetch(:include_blank, true)
end

#permitted_attribute ⇒ Object 



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# File 'lib/administrate/field/belongs_to.rb', line 20

def permitted_attribute
  foreign_key
end

#selected_option ⇒ Object 



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# File 'lib/administrate/field/belongs_to.rb', line 33

def selected_option
  data&.send(association_primary_key)
end