graphql-paper/transaction/transaction.js

A flexible in-memory store based on a GraphQL Schema

'use strict';

function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var collapseConnections = require('../document/collapse-connections.js');
var expandConnections = require('../document/expand-connections.js');
var sequential = require('../hooks/sequential.js');
var createBoundOperations = require('./create-bound-operations.js');
function transaction(store, schema, operations, hooks, fn) {
  expandConnections.expandConnections(schema, store);
  const eventQueue = [];
  hooks = Object.freeze(_objectSpread({}, hooks));
  const context = {
    schema,
    store,
    eventQueue
  };
  const boundOperations = createBoundOperations.createBoundOperations(operations, context);
  sequential.sequential(hooks.beforeTransaction, boundOperations);
  // perform transaction
  const transactionResult = fn(boundOperations);
  sequential.sequential(hooks.afterTransaction, boundOperations);
  collapseConnections.collapseConnections(schema, store);
  return {
    transactionResult,
    eventQueue
  };
}
exports.transaction = transaction;
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