Module: Tessa::Model::ClassMethods

Defined in:
lib/tessa/model.rb

Instance Method Summary collapse

Instance Method Details

#asset(name, args = {}) ⇒ Object 



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# File 'lib/tessa/model.rb', line 44

def asset(name, args={})
  field = tessa_fields[name] = Field.new(args.merge(name: name))
  
  multiple = args[:multiple]


  if respond_to?(:has_one_attached)
    if multiple
      has_many_attached(name)
    else
      has_one_attached(name)
    end

    # We have to replace the after_destroy_commit callback added above
    callbacks = get_callbacks(:commit)
    callbacks.delete(callbacks.to_a.last)
    after_destroy_commit { public_send("#{name}_attachment")&.purge_later }
  end

  dynamic_extensions =
    if respond_to?(:has_one_attached)
      if multiple
        ::Tessa::DynamicExtensions::MultipleRecord.new(field)
      else
        ::Tessa::DynamicExtensions::SingleRecord.new(field)
      end
    else
      if multiple
        ::Tessa::DynamicExtensions::MultipleFormObject.new(field)
      else
        ::Tessa::DynamicExtensions::SingleFormObject.new(field)
      end
    end
  include dynamic_extensions.build(Module.new)

  # Undefine the activestorage default attribute method so it falls back
  # to our dynamic module
  remove_method "#{name}" rescue nil
  remove_method "#{name}=" rescue nil
end

#inherited(subclass) ⇒ Object 



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# File 'lib/tessa/model.rb', line 89

def inherited(subclass)
  subclass.instance_variable_set(:@tessa_fields, @tessa_fields.dup)
end

#tessa_fields ⇒ Object 



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# File 'lib/tessa/model.rb', line 85

def tessa_fields
  @tessa_fields ||= {}
end