Class: Rails::GraphQL::Helpers::InheritedCollection::Base

Inherits:

Object

• Object
• Rails::GraphQL::Helpers::InheritedCollection::Base

Includes:

Enumerable

Defined in:

lib/rails/graphql/helpers/inherited_collection/base.rb

Overview

The base class for inherited collections. It helps softly dealing with values defined in multiple class instance variables and look up the tree to make it possible to iterate over combined result

Direct Known Subclasses

Array, Hash

Class Method Summary

• .handle(source, ivar, type) ⇒ Object

  Just a little helper to initialize the iterator form a given source.

Instance Method Summary

• #initialize(source, ivar, type) ⇒ Base constructor

  A new instance of Base.

• #lazy ⇒ Object

  Overrides the lazy enumerator because each instance variable defined and found by the each_definition will be iterated over lazily.

Constructor Details

#initialize(source, ivar, type) ⇒ Base

Returns a new instance of Base.

# File 'lib/rails/graphql/helpers/inherited_collection/base.rb', line 18

def initialize(source, ivar, type)
  @source = source
  @ivar = ivar
  @type = type
end

Class Method Details

.handle(source, ivar, type) ⇒ Object

Just a little helper to initialize the iterator form a given source

# File 'lib/rails/graphql/helpers/inherited_collection/base.rb', line 13

def self.handle(source, ivar, type)
  klass = (type == :array || type == :set) ? :Array : :Hash
  InheritedCollection.const_get(klass, false).new(source, ivar, type)
end

Instance Method Details

#lazy ⇒ Object

Overrides the lazy enumerator because each instance variable defined and found by the each_definition will be iterated over lazily

# File 'lib/rails/graphql/helpers/inherited_collection/base.rb', line 26

def lazy
  Enumerator::Lazy.new(each_definition) { |y, d| d.each(&y) }
end