@aws-amplify/datastore
Version:
AppSyncLocal support for aws-amplify
132 lines • 6.66 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __spread = (this && this.__spread) || function () {
for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));
return ar;
};
import { OpType, } from '../types';
var ModelMerger = /** @class */ (function () {
function ModelMerger(outbox, ownSymbol) {
this.outbox = outbox;
this.ownSymbol = ownSymbol;
}
ModelMerger.prototype.merge = function (storage, model) {
return __awaiter(this, void 0, void 0, function () {
var result, mutationsForModel, isDelete;
var _a, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0: return [4 /*yield*/, this.outbox.getForModel(storage, model)];
case 1:
mutationsForModel = _c.sent();
isDelete = model._deleted;
if (!(mutationsForModel.length === 0)) return [3 /*break*/, 5];
if (!isDelete) return [3 /*break*/, 3];
result = OpType.DELETE;
return [4 /*yield*/, storage.delete(model, undefined, this.ownSymbol)];
case 2:
_c.sent();
return [3 /*break*/, 5];
case 3: return [4 /*yield*/, storage.save(model, undefined, this.ownSymbol)];
case 4:
_a = __read.apply(void 0, [_c.sent(), 1]), _b = __read(_a[0], 2), result = _b[1];
_c.label = 5;
case 5: return [2 /*return*/, result];
}
});
});
};
ModelMerger.prototype.mergePage = function (storage, modelConstructor, items) {
return __awaiter(this, void 0, void 0, function () {
var itemsMap, items_1, items_1_1, item, page;
var e_1, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
itemsMap = new Map();
try {
for (items_1 = __values(items), items_1_1 = items_1.next(); !items_1_1.done; items_1_1 = items_1.next()) {
item = items_1_1.value;
// merge items by model id. Latest record for a given id remains.
itemsMap.set(item.id, item);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (items_1_1 && !items_1_1.done && (_a = items_1.return)) _a.call(items_1);
}
finally { if (e_1) throw e_1.error; }
}
page = __spread(itemsMap.values());
return [4 /*yield*/, storage.batchSave(modelConstructor, page, this.ownSymbol)];
case 1: return [2 /*return*/, _b.sent()];
}
});
});
};
return ModelMerger;
}());
export { ModelMerger };
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