Class: Graphql::Generators::TypeGeneratorBase

Inherits:
Rails::Generators::Base
  • Object
show all
Includes:
Core
Defined in:
lib/generators/graphql/type_generator.rb

Defined Under Namespace

Classes: NormalizedField

Class Method Summary collapse

Methods included from Core

#create_dir, #create_mutation_root_type, #insert_root_type, #schema_file_path

Class Method Details

.normalize_type_expression(type_expression, mode:, null: true) ⇒ (String, Boolean)

Take a type expression in any combination of GraphQL or Ruby styles and return it in a specified output style TODO: nullability / list with mode: :graphql doesn’t work

Parameters:

  • type_expresson (String)
  • mode (Symbol)
  • null (Boolean) (defaults to: true)

Returns:

  • ((String, Boolean)) —

    The type expression, followed by null: value

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# File 'lib/generators/graphql/type_generator.rb', line 26

def self.normalize_type_expression(type_expression, mode:, null: true)
  if type_expression.start_with?("!")
    normalize_type_expression(type_expression[1..-1], mode: mode, null: false)
  elsif type_expression.end_with?("!")
    normalize_type_expression(type_expression[0..-2], mode: mode, null: false)
  elsif type_expression.start_with?("[") && type_expression.end_with?("]")
    name, is_null = normalize_type_expression(type_expression[1..-2], mode: mode, null: null)
    ["[#{name}]", is_null]
  elsif type_expression.end_with?("Type")
    normalize_type_expression(type_expression[0..-5], mode: mode, null: null)
  elsif type_expression.start_with?("Types::")
    normalize_type_expression(type_expression[7..-1], mode: mode, null: null)
  elsif type_expression.start_with?("types.")
    normalize_type_expression(type_expression[6..-1], mode: mode, null: null)
  else
    case mode
    when :ruby
      case type_expression
      when "Int"
        ["Integer", null]
      when "Integer", "Float", "Boolean", "String", "ID"
        [type_expression, null]
      else
        ["Types::#{type_expression.camelize}Type", null]
      end
    when :graphql
      [type_expression.camelize, null]
    else
      raise "Unexpected normalize mode: #{mode}"
    end
  end
end