graphql-compose-mongoose/node8/resolvers/updateById.js

Plugin for `graphql-compose` which derive a graphql types from a mongoose model.

'use strict';

exports.__esModule = true;

var _extends2 = require('babel-runtime/helpers/extends');

var _extends3 = _interopRequireDefault(_extends2);

exports.default = updateById;

var _record = require('./helpers/record');

var _findById = require('./findById');

var _findById2 = _interopRequireDefault(_findById);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/* eslint-disable no-param-reassign */

function updateById(model, tc, opts) {
  if (!model || !model.modelName || !model.schema) {
    throw new Error('First arg for Resolver updateById() should be instance of Mongoose Model.');
  }

  if (!tc || tc.constructor.name !== 'TypeComposer') {
    throw new Error('Second arg for Resolver updateById() should be instance of TypeComposer.');
  }

  const findByIdResolver = (0, _findById2.default)(model, tc);

  const outputTypeName = `UpdateById${tc.getTypeName()}Payload`;
  const outputType = tc.constructor.schemaComposer.getOrCreateTC(outputTypeName, t => {
    t.addFields({
      recordId: {
        type: 'MongoID',
        description: 'Updated document ID'
      },
      record: {
        type: tc.getType(),
        description: 'Updated document'
      }
    });
  });

  const resolver = new tc.constructor.schemaComposer.Resolver({
    name: 'updateById',
    kind: 'mutation',
    description: 'Update one document: ' + '1) Retrieve one document by findById. ' + '2) Apply updates to mongoose document. ' + '3) Mongoose applies defaults, setters, hooks and validation. ' + '4) And save it.',
    type: outputType,
    args: (0, _extends3.default)({}, (0, _record.recordHelperArgs)(tc, (0, _extends3.default)({
      recordTypeName: `UpdateById${tc.getTypeName()}Input`,
      requiredFields: ['_id'],
      isRequired: true
    }, opts && opts.record))),
    resolve: async resolveParams => {
      const recordData = resolveParams.args && resolveParams.args.record || {};

      if (!(typeof recordData === 'object')) {
        return Promise.reject(new Error(`${tc.getTypeName()}.updateById resolver requires args.record value`));
      }

      if (!recordData._id) {
        return Promise.reject(new Error(`${tc.getTypeName()}.updateById resolver requires args.record._id value`));
      }

      resolveParams.args._id = recordData._id;
      delete recordData._id;

      // We should get all data for document, cause Mongoose model may have hooks/middlewares
      // which required some fields which not in graphql projection
      // So empty projection returns all fields.
      resolveParams.projection = {};

      let doc = await findByIdResolver.resolve(resolveParams);

      if (resolveParams.beforeRecordMutate) {
        doc = await resolveParams.beforeRecordMutate(doc, resolveParams);
      }

      if (!doc) {
        throw new Error('Document not found');
      }

      if (recordData) {
        doc.set(recordData);
        await doc.save();
      }

      return {
        record: doc,
        recordId: tc.getRecordIdFn()(doc)
      };
    }
  });

  return resolver;
}