typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
105 lines (103 loc) • 6.58 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(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 = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [0, 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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var OrmUtils_1 = require("../../util/OrmUtils");
/**
* Executes subject operations for nested set tree entities.
*/
var NestedSetSubjectExecutor = /** @class */ (function () {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
function NestedSetSubjectExecutor(queryRunner) {
this.queryRunner = queryRunner;
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Executes operations when subject is being inserted.
*/
NestedSetSubjectExecutor.prototype.insert = function (subject) {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
var escape, tableName, leftColumnName, rightColumnName, parent, parentId, parentNsRight;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
escape = function (alias) { return _this.queryRunner.connection.driver.escape(alias); };
tableName = escape(subject.metadata.tablePath);
leftColumnName = escape(subject.metadata.nestedSetLeftColumn.databaseName);
rightColumnName = escape(subject.metadata.nestedSetRightColumn.databaseName);
parent = subject.metadata.treeParentRelation.getEntityValue(subject.entity);
if (!parent && subject.parentSubject && subject.parentSubject.entity) // if entity was attached via children
parent = subject.parentSubject.insertedValueSet ? subject.parentSubject.insertedValueSet : subject.parentSubject.entity;
parentId = subject.metadata.getEntityIdMap(parent);
parentNsRight = undefined;
if (!parentId) return [3 /*break*/, 2];
return [4 /*yield*/, this.queryRunner.manager
.createQueryBuilder()
.select(subject.metadata.targetName + "." + subject.metadata.nestedSetRightColumn.propertyPath, "right")
.from(subject.metadata.target, subject.metadata.targetName)
.whereInIds(parentId)
.getRawOne()
.then(function (result) { return result ? result["right"] : undefined; })];
case 1:
parentNsRight = _a.sent();
_a.label = 2;
case 2:
if (!(parentNsRight !== undefined)) return [3 /*break*/, 4];
return [4 /*yield*/, this.queryRunner.query("UPDATE " + tableName + " SET " +
(leftColumnName + " = CASE WHEN " + leftColumnName + " > " + parentNsRight + " THEN " + leftColumnName + " + 2 ELSE " + leftColumnName + " END,") +
(rightColumnName + " = " + rightColumnName + " + 2 ") +
("WHERE " + rightColumnName + " >= " + parentNsRight))];
case 3:
_a.sent();
OrmUtils_1.OrmUtils.mergeDeep(subject.insertedValueSet, subject.metadata.nestedSetLeftColumn.createValueMap(parentNsRight), subject.metadata.nestedSetRightColumn.createValueMap(parentNsRight + 1));
return [3 /*break*/, 5];
case 4:
OrmUtils_1.OrmUtils.mergeDeep(subject.insertedValueSet, subject.metadata.nestedSetLeftColumn.createValueMap(1), subject.metadata.nestedSetRightColumn.createValueMap(2));
_a.label = 5;
case 5: return [2 /*return*/];
}
});
});
};
return NestedSetSubjectExecutor;
}());
exports.NestedSetSubjectExecutor = NestedSetSubjectExecutor;
//# sourceMappingURL=NestedSetSubjectExecutor.js.map