Class: GraphQL::Schema

Inherits:
Object
  • Object
show all
Defined in:
lib/graph_ql/schema.rb

Defined Under Namespace

Classes: EachItemValidator, FieldValidator, ImplementationValidator, SchemaValidator, TypeReducer, TypeValidator

Constant Summary collapse

DIRECTIVES = 
[GraphQL::SkipDirective, GraphQL::IncludeDirective]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(query:, mutation:) ⇒ Schema

Returns a new instance of Schema.



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# File 'lib/graph_ql/schema.rb', line 5

def initialize(query:, mutation:)
  # Add fields to this query root for introspection:
  query.fields = query.fields.merge({
    "__type" =>     GraphQL::Field.new do |f, type, field, arg|
      f.description("A type in the GraphQL system")
      f.arguments({name: arg.build(type: !type.String)})
      f.type(!GraphQL::Introspection::TypeType)
      f.resolve -> (o, a, c) { self.types[a["name"]] }
    end,
    "__schema" =>   GraphQL::Field.new do |f|
      f.description("This GraphQL schema")
      f.type(!GraphQL::Introspection::SchemaType)
      f.resolve -> (o, a, c) { self }
    end
  })

  @query    = query
  @mutation = mutation
  @directives = DIRECTIVES.reduce({}) { |m, d| m[d.name] = d; m }
  @static_validator = GraphQL::StaticValidation::Validator.new(schema: self)

  errors = SchemaValidator.new.validate(self)
  if errors.any?
    raise("Schema is invalid: \n#{errors.join("\n")}")
  end
end

Instance Attribute Details

#directives ⇒ Object (readonly)

Returns the value of attribute directives.



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# File 'lib/graph_ql/schema.rb', line 4

def directives
  @directives
end

#mutation ⇒ Object (readonly)

Returns the value of attribute mutation.



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# File 'lib/graph_ql/schema.rb', line 4

def mutation
  @mutation
end

#query ⇒ Object (readonly)

Returns the value of attribute query.



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# File 'lib/graph_ql/schema.rb', line 4

def query
  @query
end

#static_validator ⇒ Object (readonly)

Returns the value of attribute static_validator.



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# File 'lib/graph_ql/schema.rb', line 4

def static_validator
  @static_validator
end

Instance Method Details

#types ⇒ Object 



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# File 'lib/graph_ql/schema.rb', line 32

def types
  @types ||= TypeReducer.new(query, {}).result
end