typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, WebSQL, MongoDB databases.
231 lines (228 loc) • 12.4 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
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 QueryBuilder_1 = require("./QueryBuilder");
var RelationUpdater_1 = require("./RelationUpdater");
var RelationRemover_1 = require("./RelationRemover");
var RelationLoader_1 = require("./RelationLoader");
/**
* Allows to work with entity relations and perform specific operations with those relations.
*
* todo: add transactions everywhere
*/
var RelationQueryBuilder = /** @class */ (function (_super) {
__extends(RelationQueryBuilder, _super);
function RelationQueryBuilder() {
return _super !== null && _super.apply(this, arguments) || this;
}
// -------------------------------------------------------------------------
// Public Implemented Methods
// -------------------------------------------------------------------------
/**
* Gets generated sql query without parameters being replaced.
*/
RelationQueryBuilder.prototype.getQuery = function () {
return "";
};
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Sets entity (target) which relations will be updated.
*/
RelationQueryBuilder.prototype.of = function (entity) {
this.expressionMap.of = entity;
return this;
};
/**
* Sets entity relation's value.
* Value can be entity, entity id or entity id map (if entity has composite ids).
* Works only for many-to-one and one-to-one relations.
* For many-to-many and one-to-many relations use #add and #remove methods instead.
*/
RelationQueryBuilder.prototype.set = function (value) {
return __awaiter(this, void 0, void 0, function () {
var relation, updater;
return __generator(this, function (_a) {
relation = this.expressionMap.relationMetadata;
if (!this.expressionMap.of)
throw new Error("Entity whose relation needs to be set is not set. Use .of method to define whose relation you want to set.");
if (relation.isManyToMany || relation.isOneToMany)
throw new Error("Set operation is only supported for many-to-one and one-to-one relations. " +
("However given \"" + relation.propertyPath + "\" has " + relation.relationType + " relation. ") +
"Use .add() method instead.");
// if there are multiple join columns then user must send id map as "value" argument. check if he really did it
if (relation.joinColumns &&
relation.joinColumns.length > 1 &&
(!(value instanceof Object) || Object.keys(value).length < relation.joinColumns.length))
throw new Error("Value to be set into the relation must be a map of relation ids, for example: .set({ firstName: \"...\", lastName: \"...\" })");
updater = new RelationUpdater_1.RelationUpdater(this, this.expressionMap);
return [2 /*return*/, updater.update(value)];
});
});
};
/**
* Adds (binds) given value to entity relation.
* Value can be entity, entity id or entity id map (if entity has composite ids).
* Value also can be array of entities, array of entity ids or array of entity id maps (if entity has composite ids).
* Works only for many-to-many and one-to-many relations.
* For many-to-one and one-to-one use #set method instead.
*/
RelationQueryBuilder.prototype.add = function (value) {
return __awaiter(this, void 0, void 0, function () {
var relation, updater;
return __generator(this, function (_a) {
if (value instanceof Array && value.length === 0)
return [2 /*return*/];
relation = this.expressionMap.relationMetadata;
if (!this.expressionMap.of)
throw new Error("Entity whose relation needs to be set is not set. Use .of method to define whose relation you want to set.");
if (relation.isManyToOne || relation.isOneToOne)
throw new Error("Add operation is only supported for many-to-many and one-to-many relations. " +
("However given \"" + relation.propertyPath + "\" has " + relation.relationType + " relation. ") +
"Use .set() method instead.");
// if there are multiple join columns then user must send id map as "value" argument. check if he really did it
if (relation.joinColumns &&
relation.joinColumns.length > 1 &&
(!(value instanceof Object) || Object.keys(value).length < relation.joinColumns.length))
throw new Error("Value to be set into the relation must be a map of relation ids, for example: .set({ firstName: \"...\", lastName: \"...\" })");
updater = new RelationUpdater_1.RelationUpdater(this, this.expressionMap);
return [2 /*return*/, updater.update(value)];
});
});
};
/**
* Removes (unbinds) given value from entity relation.
* Value can be entity, entity id or entity id map (if entity has composite ids).
* Value also can be array of entities, array of entity ids or array of entity id maps (if entity has composite ids).
* Works only for many-to-many and one-to-many relations.
* For many-to-one and one-to-one use #set method instead.
*/
RelationQueryBuilder.prototype.remove = function (value) {
return __awaiter(this, void 0, void 0, function () {
var relation, remover;
return __generator(this, function (_a) {
if (value instanceof Array && value.length === 0)
return [2 /*return*/];
relation = this.expressionMap.relationMetadata;
if (!this.expressionMap.of)
throw new Error("Entity whose relation needs to be set is not set. Use .of method to define whose relation you want to set.");
if (relation.isManyToOne || relation.isOneToOne)
throw new Error("Add operation is only supported for many-to-many and one-to-many relations. " +
("However given \"" + relation.propertyPath + "\" has " + relation.relationType + " relation. ") +
"Use .set(null) method instead.");
remover = new RelationRemover_1.RelationRemover(this, this.expressionMap);
return [2 /*return*/, remover.remove(value)];
});
});
};
/**
* Adds (binds) and removes (unbinds) given values to/from entity relation.
* Value can be entity, entity id or entity id map (if entity has composite ids).
* Value also can be array of entities, array of entity ids or array of entity id maps (if entity has composite ids).
* Works only for many-to-many and one-to-many relations.
* For many-to-one and one-to-one use #set method instead.
*/
RelationQueryBuilder.prototype.addAndRemove = function (added, removed) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.remove(removed)];
case 1:
_a.sent();
return [4 /*yield*/, this.add(added)];
case 2:
_a.sent();
return [2 /*return*/];
}
});
});
};
/**
* Gets entity's relation id.
async getId(): Promise<any> {
}*/
/**
* Gets entity's relation ids.
async getIds(): Promise<any[]> {
return [];
}*/
/**
* Loads a single entity (relational) from the relation.
* You can also provide id of relational entity to filter by.
*/
RelationQueryBuilder.prototype.loadOne = function () {
return __awaiter(this, void 0, void 0, function () {
var of, metadata, relationLoader;
return __generator(this, function (_a) {
of = this.expressionMap.of;
if (!(of instanceof Object)) {
metadata = this.expressionMap.mainAlias.metadata;
if (metadata.hasMultiplePrimaryKeys)
throw new Error("Cannot load entity because only one primary key was specified, however entity contains multiple primary keys");
of = metadata.primaryColumns[0].createValueMap(of);
}
relationLoader = new RelationLoader_1.RelationLoader(this.connection);
return [2 /*return*/, relationLoader.load(this.expressionMap.relationMetadata, of)];
});
});
};
/**
* Loads many entities (relational) from the relation.
* You can also provide ids of relational entities to filter by.
*/
RelationQueryBuilder.prototype.loadMany = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/, this.loadOne()];
});
});
};
return RelationQueryBuilder;
}(QueryBuilder_1.QueryBuilder));
exports.RelationQueryBuilder = RelationQueryBuilder;
//# sourceMappingURL=RelationQueryBuilder.js.map