Module: Rails::GraphQL::Source::ScopedArguments

Included in:
ActiveRecordSource
Defined in:
lib/rails/graphql/source/scoped_arguments.rb

Overview

This is a helper class that allows sources to have scoped-based arguments, meaning that when an argument is present, it triggers the underlying block on the fields where the argument was attached to

Defined Under Namespace

Modules: ClassMethods Classes: Argument

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(other) ⇒ Object 



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# File 'lib/rails/graphql/source/scoped_arguments.rb', line 9

def self.included(other)
  other.extend(ClassMethods)
end

Instance Method Details

#inject_scopes(object, assigned_to = nil) ⇒ Object

Find all the executable arguments attached to the running field and call them with the given object



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# File 'lib/rails/graphql/source/scoped_arguments.rb', line 85

def inject_scopes(object, assigned_to = nil)
  return object if event.field.nil? || (field_args = event.field.all_arguments).blank?

  args_source = event.send(:args_source)
  event.data[assigned_to] ||= object unless assigned_to.nil?
  field_args.each_value.inject(object) do |result, argument|
    arg_value = args_source.key?(argument.name) \
      ? args_source[argument.name] \
      : argument.default

    next result if arg_value.nil? || !argument.is_a?(Argument)

    value = argument.apply_to(result, arg_value)
    value = value.nil? ? result : value

    assigned_to.nil? ? value : event.data[assigned_to] = value
  end
end