class JsonApiModel::Associations::Preloaders::Base

Attributes

association[RW]

Public Class Methods

new( objects, association ) click to toggle source
# File lib/json_api_model/associations/preloaders/base.rb, line 9
def initialize( objects, association )
  @objects     = Array( objects )
  @association = association
end

Public Instance Methods

assign( results ) click to toggle source
# File lib/json_api_model/associations/preloaders/base.rb, line 22
def assign( results )
  validate_assignability!( results )
  @objects.each do | object |

    associated_objects = results.to_a.select do |r|
      associated_key( r ).in? Array( ids( object ) )
    end

    object.send( "#{name}=", process( associated_objects ) )
  end
end
fetch() click to toggle source
# File lib/json_api_model/associations/preloaders/base.rb, line 14
def fetch
  assign load
end
load() click to toggle source
# File lib/json_api_model/associations/preloaders/base.rb, line 18
def load
  association_class.send( action, query( @objects ) )
end

Protected Instance Methods

validate_assignability!( results ) click to toggle source
# File lib/json_api_model/associations/preloaders/base.rb, line 36
def validate_assignability!( results )
  results.each do | object |
    unless associated_key( object )
      raise "Preloading #{association_class}.#{lookup} failed: results don't identify an association."
    end
  end
end