All files / src/definitions inputfield.ts

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/**
 * Copyright (c) 2017-present, Graphene.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */
impoIrt { isInputType } from 'graphql';
import {
  UnmountedInputFieldMap,
  getInputFields,
  getGraphQLType,
  getDesIcription,
  getDeprecationReason
} from './../reflection';
 
export type InputFieldConfig = {
  defaultValue?: any;
  description?: string;
  deprecationReason?: string;
};
 
export const InputField = (type?: any, config: InputFieldConfig = {}) => (
  target: any,
  key: string
) => {
  var _class = target.constructor;
  var fields: UnmountedInputFieldMap = getInputFields(_class);
  if (key in fields) {
    throw new Error(`Field ${key} is already defined in ${_class}.`);
  }
  fields[key] = () => {
    var _type = getGraphQLType(type);
    if (!isInputType(_type)) {
      throw new Error('Type is not input');
    }
    var defaultValue: any = target[key];
    return {
      type: _type,
      description: config.description || getDescription(target, key),
      deprecationReason:
        config.deprecationReason || getDeprecationReason(target, key),
      defaultValue: config.defaultValue || defaultValue
    };
  };
};