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Class: GraphQL::Client::QueryTypename::InsertTypenameVisitor

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, GraphQL::Language::Visitor
Instance Chain:
self, GraphQL::Language::Visitor
Inherits: GraphQL::Language::Visitor
  • Object
Defined in: lib/graphql/client/query_typename.rb

Overview

::GraphQL 1.9 introduces a new visitor class and doesn’t expose writer methods for node attributes. So, use the node mutation API instead.

Class Method Summary

Instance Method Summary

Constructor Details

.new(document, types:) ⇒ InsertTypenameVisitor

[ GitHub ] 

  


# File 'lib/graphql/client/query_typename.rb', line 22



def initialize(document, types:)
  @types = types
  super(document)
end


  







Instance Method Details



  

    #add_typename(node, parent)  
  

  [ GitHub ]


  

  


# File 'lib/graphql/client/query_typename.rb', line 27



def add_typename(node, parent)
  type = @types[node]
  type = type && type.unwrap

  if (node.selections.any? && (type.nil? || type.kind.interface? || type.kind.union?)) ||
    (node.selections.none? && (type && type.kind.object?))
    names = QueryTypename.node_flatten_selections(node.selections).map { |s| s.respond_to?(:name) ? s.name : nil }
    names = Set.new(names.compact)

    if names.include?("__typename")
      yield(node, parent)
    else
      node_with_typename = node.merge(selections: [GraphQL::Language::Nodes::Field.new(name: "__typename")] + node.selections)
      yield(node_with_typename, parent)
    end
  else
    yield(node, parent)
  end
end


  








  

    #on_field(node, parent)  
  

  [ GitHub ]


  

  


# File 'lib/graphql/client/query_typename.rb', line 51



def on_field(node, parent)
  add_typename(node, parent) { |n, p| super(n, p) }
end


  








  

    #on_fragment_definition(node, parent)  
  

  [ GitHub ]


  

  


# File 'lib/graphql/client/query_typename.rb', line 55



def on_fragment_definition(node, parent)
  add_typename(node, parent) { |n, p| super(n, p) }
end


  








  

    #on_operation_definition(node, parent)  
  

  [ GitHub ]


  

  


# File 'lib/graphql/client/query_typename.rb', line 47



def on_operation_definition(node, parent)
  add_typename(node, parent) { |n, p| super(n, p) }
end