class GraphQL::Schema::Finder

Find schema members using string paths

Examples

Example: Finding object types

MySchema.find("SomeObjectType")

Example: Finding fields

MySchema.find("SomeObjectType.myField")

Example: Finding arguments

MySchema.find("SomeObjectType.myField.anArgument")

Example: Finding directives

MySchema.find("@include")

Public Class Methods

new (schema)

Source

# File lib/graphql/schema/finder.rb, line 36
def initialize(schema)
  @schema = schema
end

Public Instance Methods

find (path)

Source

# File lib/graphql/schema/finder.rb, line 40
def find(path)
  path = path.split(".")
  type_or_directive = path.shift

  if type_or_directive.start_with?("@")
    directive = schema.directives[type_or_directive[1..-1]]

    if directive.nil?
      raise MemberNotFoundError, "Could not find directive `#{type_or_directive}` in schema."
    end

    return directive if path.empty?

    find_in_directive(directive, path: path)
  else
    type = schema.get_type(type_or_directive) # rubocop:disable Development/ContextIsPassedCop -- build-time

    if type.nil?
      raise MemberNotFoundError, "Could not find type `#{type_or_directive}` in schema."
    end

    return type if path.empty?

    find_in_type(type, path: path)
  end
end