"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var tslib_1 = require("tslib");
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var PromiseUtils_1 = require("../util/PromiseUtils");
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var SubjectTopoligicalSorter_1 = require("./SubjectTopoligicalSorter");
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var SubjectChangedColumnsComputer_1 = require("./SubjectChangedColumnsComputer");
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var SubjectWithoutIdentifierError_1 = require("../error/SubjectWithoutIdentifierError");
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var SubjectRemovedAndUpdatedError_1 = require("../error/SubjectRemovedAndUpdatedError");
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var MongoQueryRunner_1 = require("../driver/mongodb/MongoQueryRunner");
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var MongoDriver_1 = require("../driver/mongodb/MongoDriver");
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var BroadcasterResult_1 = require("../subscriber/BroadcasterResult");
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var OracleDriver_1 = require("../driver/oracle/OracleDriver");
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var NestedSetSubjectExecutor_1 = require("./tree/NestedSetSubjectExecutor");
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var ClosureSubjectExecutor_1 = require("./tree/ClosureSubjectExecutor");
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var MaterializedPathSubjectExecutor_1 = require("./tree/MaterializedPathSubjectExecutor");
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var OrmUtils_1 = require("../util/OrmUtils");
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/**
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* Executes all database operations (inserts, updated, deletes) that must be executed
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* with given persistence subjects.
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*/
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var SubjectExecutor = /** @class */ (function () {
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// -------------------------------------------------------------------------
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// Constructor
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// -------------------------------------------------------------------------
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function SubjectExecutor(queryRunner, subjects, options) {
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// -------------------------------------------------------------------------
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// Public Properties
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// -------------------------------------------------------------------------
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/**
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* Indicates if executor has any operations to execute (e.g. has insert / update / delete operations to be executed).
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*/
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this.hasExecutableOperations = false;
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/**
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* Subjects that must be inserted.
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*/
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this.insertSubjects = [];
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/**
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* Subjects that must be updated.
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*/
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this.updateSubjects = [];
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/**
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* Subjects that must be removed.
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*/
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this.removeSubjects = [];
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this.queryRunner = queryRunner;
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this.allSubjects = subjects;
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this.options = options;
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this.validate();
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this.recompute();
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}
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// -------------------------------------------------------------------------
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// Public Methods
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// -------------------------------------------------------------------------
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/**
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* Executes all operations over given array of subjects.
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* Executes queries using given query runner.
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*/
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SubjectExecutor.prototype.execute = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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var broadcasterResult;
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return tslib_1.__generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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broadcasterResult = undefined;
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if (!(!this.options || this.options.listeners !== false)) return [3 /*break*/, 2];
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// console.time(".broadcastBeforeEventsForAll");
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broadcasterResult = this.broadcastBeforeEventsForAll();
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if (!(broadcasterResult.promises.length > 0)) return [3 /*break*/, 2];
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return [4 /*yield*/, Promise.all(broadcasterResult.promises)];
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case 1:
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_a.sent();
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_a.label = 2;
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case 2:
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// since event listeners and subscribers can call save methods and/or trigger entity changes we need to recompute operational subjects
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// recompute only in the case if any listener or subscriber was really executed
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if (broadcasterResult && broadcasterResult.count > 0) {
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// console.time(".recompute");
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this.insertSubjects.forEach(function (subject) { return subject.recompute(); });
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this.updateSubjects.forEach(function (subject) { return subject.recompute(); });
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this.removeSubjects.forEach(function (subject) { return subject.recompute(); });
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this.recompute();
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// console.timeEnd(".recompute");
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}
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// make sure our insert subjects are sorted (using topological sorting) to make cascade inserts work properly
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// console.timeEnd("prepare");
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// execute all insert operations
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// console.time(".insertion");
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this.insertSubjects = new SubjectTopoligicalSorter_1.SubjectTopoligicalSorter(this.insertSubjects).sort("insert");
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return [4 /*yield*/, this.executeInsertOperations()];
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case 3:
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_a.sent();
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// console.timeEnd(".insertion");
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// recompute update operations since insertion can create updation operations for the
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// properties it wasn't able to handle on its own (referenced columns)
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this.updateSubjects = this.allSubjects.filter(function (subject) { return subject.mustBeUpdated; });
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// execute update operations
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// console.time(".updation");
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return [4 /*yield*/, this.executeUpdateOperations()];
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case 4:
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// execute update operations
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// console.time(".updation");
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_a.sent();
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// console.timeEnd(".updation");
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// make sure our remove subjects are sorted (using topological sorting) when multiple entities are passed for the removal
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// console.time(".removal");
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this.removeSubjects = new SubjectTopoligicalSorter_1.SubjectTopoligicalSorter(this.removeSubjects).sort("delete");
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return [4 /*yield*/, this.executeRemoveOperations()];
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case 5:
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_a.sent();
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// console.timeEnd(".removal");
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// update all special columns in persisted entities, like inserted id or remove ids from the removed entities
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// console.time(".updateSpecialColumnsInPersistedEntities");
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return [4 /*yield*/, this.updateSpecialColumnsInPersistedEntities()];
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case 6:
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// console.timeEnd(".removal");
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// update all special columns in persisted entities, like inserted id or remove ids from the removed entities
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// console.time(".updateSpecialColumnsInPersistedEntities");
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_a.sent();
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if (!(!this.options || this.options.listeners !== false)) return [3 /*break*/, 8];
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// console.time(".broadcastAfterEventsForAll");
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broadcasterResult = this.broadcastAfterEventsForAll();
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if (!(broadcasterResult.promises.length > 0)) return [3 /*break*/, 8];
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return [4 /*yield*/, Promise.all(broadcasterResult.promises)];
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case 7:
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_a.sent();
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_a.label = 8;
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case 8: return [2 /*return*/];
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}
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});
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});
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};
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// -------------------------------------------------------------------------
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// Protected Methods
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// -------------------------------------------------------------------------
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/**
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* Validates all given subjects.
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*/
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SubjectExecutor.prototype.validate = function () {
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this.allSubjects.forEach(function (subject) {
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if (subject.mustBeUpdated && subject.mustBeRemoved)
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throw new SubjectRemovedAndUpdatedError_1.SubjectRemovedAndUpdatedError(subject);
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});
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};
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/**
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* Performs entity re-computations - finds changed columns, re-builds insert/update/remove subjects.
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*/
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SubjectExecutor.prototype.recompute = function () {
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new SubjectChangedColumnsComputer_1.SubjectChangedColumnsComputer().compute(this.allSubjects);
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this.insertSubjects = this.allSubjects.filter(function (subject) { return subject.mustBeInserted; });
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this.updateSubjects = this.allSubjects.filter(function (subject) { return subject.mustBeUpdated; });
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this.removeSubjects = this.allSubjects.filter(function (subject) { return subject.mustBeRemoved; });
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this.hasExecutableOperations = this.insertSubjects.length > 0 || this.updateSubjects.length > 0 || this.removeSubjects.length > 0;
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};
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/**
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* Broadcasts "BEFORE_INSERT", "BEFORE_UPDATE", "BEFORE_REMOVE" events for all given subjects.
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*/
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SubjectExecutor.prototype.broadcastBeforeEventsForAll = function () {
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var _this = this;
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var result = new BroadcasterResult_1.BroadcasterResult();
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if (this.insertSubjects.length)
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this.insertSubjects.forEach(function (subject) { return _this.queryRunner.broadcaster.broadcastBeforeInsertEvent(result, subject.metadata, subject.entity); });
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if (this.updateSubjects.length)
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this.updateSubjects.forEach(function (subject) { return _this.queryRunner.broadcaster.broadcastBeforeUpdateEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.diffColumns, subject.diffRelations); });
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if (this.removeSubjects.length)
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this.removeSubjects.forEach(function (subject) { return _this.queryRunner.broadcaster.broadcastBeforeRemoveEvent(result, subject.metadata, subject.entity, subject.databaseEntity); });
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return result;
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};
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/**
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* Broadcasts "AFTER_INSERT", "AFTER_UPDATE", "AFTER_REMOVE" events for all given subjects.
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* Returns void if there wasn't any listener or subscriber executed.
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* Note: this method has a performance-optimized code organization.
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*/
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SubjectExecutor.prototype.broadcastAfterEventsForAll = function () {
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var _this = this;
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var result = new BroadcasterResult_1.BroadcasterResult();
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if (this.insertSubjects.length)
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this.insertSubjects.forEach(function (subject) { return _this.queryRunner.broadcaster.broadcastAfterInsertEvent(result, subject.metadata, subject.entity); });
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if (this.updateSubjects.length)
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this.updateSubjects.forEach(function (subject) { return _this.queryRunner.broadcaster.broadcastAfterUpdateEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.diffColumns, subject.diffRelations); });
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if (this.removeSubjects.length)
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this.removeSubjects.forEach(function (subject) { return _this.queryRunner.broadcaster.broadcastAfterRemoveEvent(result, subject.metadata, subject.entity, subject.databaseEntity); });
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return result;
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};
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/**
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* Executes insert operations.
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*/
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SubjectExecutor.prototype.executeInsertOperations = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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var _a, groupedInsertSubjects, groupedInsertSubjectKeys;
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var _this = this;
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return tslib_1.__generator(this, function (_b) {
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switch (_b.label) {
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case 0:
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_a = tslib_1.__read(this.groupBulkSubjects(this.insertSubjects, "insert"), 2), groupedInsertSubjects = _a[0], groupedInsertSubjectKeys = _a[1];
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// then we run insertion in the sequential order which is important since we have an ordered subjects
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return [4 /*yield*/, PromiseUtils_1.PromiseUtils.runInSequence(groupedInsertSubjectKeys, function (groupName) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
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var subjects, bulkInsertMaps, bulkInsertSubjects, singleInsertSubjects, manager, insertResult_1, insertResult_2;
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var _this = this;
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return tslib_1.__generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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subjects = groupedInsertSubjects[groupName];
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bulkInsertMaps = [];
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bulkInsertSubjects = [];
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singleInsertSubjects = [];
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if (this.queryRunner.connection.driver instanceof MongoDriver_1.MongoDriver) {
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subjects.forEach(function (subject) {
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if (subject.metadata.createDateColumn && subject.entity) {
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subject.entity[subject.metadata.createDateColumn.databaseName] = new Date();
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}
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if (subject.metadata.updateDateColumn && subject.entity) {
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subject.entity[subject.metadata.updateDateColumn.databaseName] = new Date();
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}
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subject.createValueSetAndPopChangeMap();
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bulkInsertSubjects.push(subject);
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bulkInsertMaps.push(subject.entity);
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});
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}
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else if (this.queryRunner.connection.driver instanceof OracleDriver_1.OracleDriver) {
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subjects.forEach(function (subject) {
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singleInsertSubjects.push(subject);
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});
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}
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else {
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subjects.forEach(function (subject) {
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// we do not insert in bulk in following cases:
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// - when there is no values in insert (only defaults are inserted), since we cannot use DEFAULT VALUES expression for multiple inserted rows
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// - when entity is a tree table, since tree tables require extra operation per each inserted row
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// - when oracle is used, since oracle's bulk insertion is very bad
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if (subject.changeMaps.length === 0 ||
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subject.metadata.treeType ||
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_this.queryRunner.connection.driver instanceof OracleDriver_1.OracleDriver) {
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singleInsertSubjects.push(subject);
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}
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else {
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bulkInsertSubjects.push(subject);
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bulkInsertMaps.push(subject.createValueSetAndPopChangeMap());
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}
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});
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}
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if (!(this.queryRunner instanceof MongoQueryRunner_1.MongoQueryRunner)) return [3 /*break*/, 2];
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manager = this.queryRunner.manager;
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return [4 /*yield*/, manager.insert(subjects[0].metadata.target, bulkInsertMaps)];
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case 1:
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insertResult_1 = _a.sent();
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subjects.forEach(function (subject, index) {
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subject.identifier = insertResult_1.identifiers[index];
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subject.generatedMap = insertResult_1.generatedMaps[index];
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subject.insertedValueSet = bulkInsertMaps[index];
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});
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return [3 /*break*/, 6];
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case 2:
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if (!(bulkInsertMaps.length > 0)) return [3 /*break*/, 4];
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return [4 /*yield*/, this.queryRunner
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.manager
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.createQueryBuilder()
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.insert()
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.into(subjects[0].metadata.target)
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.values(bulkInsertMaps)
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.updateEntity(this.options && this.options.reload === false ? false : true)
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.callListeners(false)
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.execute()];
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case 3:
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insertResult_2 = _a.sent();
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bulkInsertSubjects.forEach(function (subject, index) {
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subject.identifier = insertResult_2.identifiers[index];
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subject.generatedMap = insertResult_2.generatedMaps[index];
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subject.insertedValueSet = bulkInsertMaps[index];
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});
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_a.label = 4;
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case 4:
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if (!(singleInsertSubjects.length > 0)) return [3 /*break*/, 6];
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return [4 /*yield*/, PromiseUtils_1.PromiseUtils.runInSequence(singleInsertSubjects, function (subject) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
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return tslib_1.__generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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subject.insertedValueSet = subject.createValueSetAndPopChangeMap(); // important to have because query builder sets inserted values into it
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if (!(subject.metadata.treeType === "nested-set")) return [3 /*break*/, 2];
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return [4 /*yield*/, new NestedSetSubjectExecutor_1.NestedSetSubjectExecutor(this.queryRunner).insert(subject)];
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case 1:
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_a.sent();
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_a.label = 2;
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case 2: return [4 /*yield*/, this.queryRunner
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.manager
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.createQueryBuilder()
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.insert()
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.into(subject.metadata.target)
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.values(subject.insertedValueSet)
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.updateEntity(this.options && this.options.reload === false ? false : true)
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.callListeners(false)
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.execute()
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.then(function (insertResult) {
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subject.identifier = insertResult.identifiers[0];
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subject.generatedMap = insertResult.generatedMaps[0];
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})];
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case 3:
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_a.sent();
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if (!(subject.metadata.treeType === "closure-table")) return [3 /*break*/, 5];
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return [4 /*yield*/, new ClosureSubjectExecutor_1.ClosureSubjectExecutor(this.queryRunner).insert(subject)];
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case 4:
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_a.sent();
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return [3 /*break*/, 7];
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case 5:
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if (!(subject.metadata.treeType === "materialized-path")) return [3 /*break*/, 7];
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return [4 /*yield*/, new MaterializedPathSubjectExecutor_1.MaterializedPathSubjectExecutor(this.queryRunner).insert(subject)];
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case 6:
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_a.sent();
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_a.label = 7;
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case 7: return [2 /*return*/];
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}
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});
|
}); })];
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case 5:
|
_a.sent();
|
_a.label = 6;
|
case 6:
|
subjects.forEach(function (subject) {
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if (subject.generatedMap) {
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subject.metadata.columns.forEach(function (column) {
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var value = column.getEntityValue(subject.generatedMap);
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if (value !== undefined && value !== null) {
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var preparedValue = _this.queryRunner.connection.driver.prepareHydratedValue(value, column);
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column.setEntityValue(subject.generatedMap, preparedValue);
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}
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});
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}
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});
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return [2 /*return*/];
|
}
|
});
|
}); })];
|
case 1:
|
// then we run insertion in the sequential order which is important since we have an ordered subjects
|
_b.sent();
|
return [2 /*return*/];
|
}
|
});
|
});
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};
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/**
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* Updates all given subjects in the database.
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*/
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SubjectExecutor.prototype.executeUpdateOperations = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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var _this = this;
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return tslib_1.__generator(this, function (_a) {
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switch (_a.label) {
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case 0: return [4 /*yield*/, Promise.all(this.updateSubjects.map(function (subject) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
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var partialEntity, manager, updateMap, updateQueryBuilder, updateResult;
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var _this = this;
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return tslib_1.__generator(this, function (_a) {
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switch (_a.label) {
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case 0:
|
if (!subject.identifier)
|
throw new SubjectWithoutIdentifierError_1.SubjectWithoutIdentifierError(subject);
|
if (!(this.queryRunner instanceof MongoQueryRunner_1.MongoQueryRunner)) return [3 /*break*/, 2];
|
partialEntity = OrmUtils_1.OrmUtils.mergeDeep({}, subject.entity);
|
if (subject.metadata.objectIdColumn && subject.metadata.objectIdColumn.propertyName) {
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delete partialEntity[subject.metadata.objectIdColumn.propertyName];
|
}
|
if (subject.metadata.createDateColumn && subject.metadata.createDateColumn.propertyName) {
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delete partialEntity[subject.metadata.createDateColumn.propertyName];
|
}
|
if (subject.metadata.updateDateColumn && subject.metadata.updateDateColumn.propertyName) {
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partialEntity[subject.metadata.updateDateColumn.propertyName] = new Date();
|
}
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manager = this.queryRunner.manager;
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return [4 /*yield*/, manager.update(subject.metadata.target, subject.identifier, partialEntity)];
|
case 1:
|
_a.sent();
|
return [3 /*break*/, 4];
|
case 2:
|
updateMap = subject.createValueSetAndPopChangeMap();
|
updateQueryBuilder = this.queryRunner
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.manager
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.createQueryBuilder()
|
.update(subject.metadata.target)
|
.set(updateMap)
|
.updateEntity(this.options && this.options.reload === false ? false : true)
|
.callListeners(false);
|
if (subject.entity) {
|
updateQueryBuilder.whereEntity(subject.identifier);
|
}
|
else { // in this case identifier is just conditions object to update by
|
updateQueryBuilder.where(subject.identifier);
|
}
|
return [4 /*yield*/, updateQueryBuilder.execute()];
|
case 3:
|
updateResult = _a.sent();
|
subject.generatedMap = updateResult.generatedMaps[0];
|
if (subject.generatedMap) {
|
subject.metadata.columns.forEach(function (column) {
|
var value = column.getEntityValue(subject.generatedMap);
|
if (value !== undefined && value !== null) {
|
var preparedValue = _this.queryRunner.connection.driver.prepareHydratedValue(value, column);
|
column.setEntityValue(subject.generatedMap, preparedValue);
|
}
|
});
|
}
|
_a.label = 4;
|
case 4: return [2 /*return*/];
|
}
|
});
|
}); }))];
|
case 1:
|
_a.sent();
|
return [2 /*return*/];
|
}
|
});
|
});
|
};
|
/**
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* Removes all given subjects from the database.
|
*
|
* todo: we need to apply topological sort here as well
|
*/
|
SubjectExecutor.prototype.executeRemoveOperations = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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var _a, groupedRemoveSubjects, groupedRemoveSubjectKeys;
|
var _this = this;
|
return tslib_1.__generator(this, function (_b) {
|
switch (_b.label) {
|
case 0:
|
_a = tslib_1.__read(this.groupBulkSubjects(this.removeSubjects, "delete"), 2), groupedRemoveSubjects = _a[0], groupedRemoveSubjectKeys = _a[1];
|
return [4 /*yield*/, PromiseUtils_1.PromiseUtils.runInSequence(groupedRemoveSubjectKeys, function (groupName) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
|
var subjects, deleteMaps, manager;
|
return tslib_1.__generator(this, function (_a) {
|
switch (_a.label) {
|
case 0:
|
subjects = groupedRemoveSubjects[groupName];
|
deleteMaps = subjects.map(function (subject) {
|
if (!subject.identifier)
|
throw new SubjectWithoutIdentifierError_1.SubjectWithoutIdentifierError(subject);
|
return subject.identifier;
|
});
|
if (!(this.queryRunner instanceof MongoQueryRunner_1.MongoQueryRunner)) return [3 /*break*/, 2];
|
manager = this.queryRunner.manager;
|
return [4 /*yield*/, manager.delete(subjects[0].metadata.target, deleteMaps)];
|
case 1:
|
_a.sent();
|
return [3 /*break*/, 4];
|
case 2:
|
// here we execute our deletion query
|
// we don't need to specify entities and set update entity to true since the only thing query builder
|
// will do for use is a primary keys deletion which is handled by us later once persistence is finished
|
// also, we disable listeners because we call them on our own in persistence layer
|
return [4 /*yield*/, this.queryRunner
|
.manager
|
.createQueryBuilder()
|
.delete()
|
.from(subjects[0].metadata.target)
|
.where(deleteMaps)
|
.callListeners(false)
|
.execute()];
|
case 3:
|
// here we execute our deletion query
|
// we don't need to specify entities and set update entity to true since the only thing query builder
|
// will do for use is a primary keys deletion which is handled by us later once persistence is finished
|
// also, we disable listeners because we call them on our own in persistence layer
|
_a.sent();
|
_a.label = 4;
|
case 4: return [2 /*return*/];
|
}
|
});
|
}); })];
|
case 1:
|
_b.sent();
|
return [2 /*return*/];
|
}
|
});
|
});
|
};
|
/**
|
* Updates all special columns of the saving entities (create date, update date, version, etc.).
|
* Also updates nullable columns and columns with default values.
|
*/
|
SubjectExecutor.prototype.updateSpecialColumnsInPersistedEntities = function () {
|
var _this = this;
|
// update inserted entity properties
|
if (this.insertSubjects.length)
|
this.updateSpecialColumnsInInsertedAndUpdatedEntities(this.insertSubjects);
|
// update updated entity properties
|
if (this.updateSubjects.length)
|
this.updateSpecialColumnsInInsertedAndUpdatedEntities(this.updateSubjects);
|
// remove ids from the entities that were removed
|
if (this.removeSubjects.length) {
|
this.removeSubjects.forEach(function (subject) {
|
if (!subject.entity)
|
return;
|
subject.metadata.primaryColumns.forEach(function (primaryColumn) {
|
primaryColumn.setEntityValue(subject.entity, undefined);
|
});
|
});
|
}
|
// other post-persist updations
|
this.allSubjects.forEach(function (subject) {
|
if (!subject.entity)
|
return;
|
subject.metadata.relationIds.forEach(function (relationId) {
|
relationId.setValue(subject.entity);
|
});
|
// mongo _id remove
|
if (_this.queryRunner instanceof MongoQueryRunner_1.MongoQueryRunner) {
|
if (subject.metadata.objectIdColumn
|
&& subject.metadata.objectIdColumn.databaseName
|
&& subject.metadata.objectIdColumn.databaseName !== subject.metadata.objectIdColumn.propertyName) {
|
delete subject.entity[subject.metadata.objectIdColumn.databaseName];
|
}
|
}
|
});
|
};
|
/**
|
* Updates all special columns of the saving entities (create date, update date, version, etc.).
|
* Also updates nullable columns and columns with default values.
|
*/
|
SubjectExecutor.prototype.updateSpecialColumnsInInsertedAndUpdatedEntities = function (subjects) {
|
var _this = this;
|
subjects.forEach(function (subject) {
|
if (!subject.entity)
|
return;
|
// set values to "null" for nullable columns that did not have values
|
subject.metadata.columns.forEach(function (column) {
|
// if table inheritance is used make sure this column is not child's column
|
if (subject.metadata.childEntityMetadatas.length > 0 && subject.metadata.childEntityMetadatas.map(function (metadata) { return metadata.target; }).indexOf(column.target) !== -1)
|
return;
|
// entities does not have virtual columns
|
if (column.isVirtual)
|
return;
|
// update nullable columns
|
if (column.isNullable) {
|
var columnValue = column.getEntityValue(subject.entity);
|
if (columnValue === undefined)
|
column.setEntityValue(subject.entity, null);
|
}
|
// update relational columns
|
if (subject.updatedRelationMaps.length > 0) {
|
subject.updatedRelationMaps.forEach(function (updatedRelationMap) {
|
updatedRelationMap.relation.joinColumns.forEach(function (column) {
|
if (column.isVirtual === true)
|
return;
|
column.setEntityValue(subject.entity, updatedRelationMap.value instanceof Object ? column.referencedColumn.getEntityValue(updatedRelationMap.value) : updatedRelationMap.value);
|
});
|
});
|
}
|
});
|
// merge into entity all generated values returned by a database
|
if (subject.generatedMap)
|
_this.queryRunner.manager.merge(subject.metadata.target, subject.entity, subject.generatedMap);
|
});
|
};
|
/**
|
* Groups subjects by metadata names (by tables) to make bulk insertions and deletions possible.
|
* However there are some limitations with bulk insertions of data into tables with generated (increment) columns
|
* in some drivers. Some drivers like mysql and sqlite does not support returning multiple generated columns
|
* after insertion and can only return a single generated column value, that's why its not possible to do bulk insertion,
|
* because it breaks insertion result's generatedMap and leads to problems when this subject is used in other subjects saves.
|
* That's why we only support bulking in junction tables for those drivers.
|
*
|
* Other drivers like postgres and sql server support RETURNING / OUTPUT statement which allows to return generated
|
* id for each inserted row, that's why bulk insertion is not limited to junction tables in there.
|
*/
|
SubjectExecutor.prototype.groupBulkSubjects = function (subjects, type) {
|
var group = {};
|
var keys = [];
|
var groupingAllowed = type === "delete" || this.queryRunner.connection.driver.isReturningSqlSupported();
|
subjects.forEach(function (subject, index) {
|
var key = groupingAllowed || subject.metadata.isJunction ? subject.metadata.name : subject.metadata.name + "_" + index;
|
if (!group[key]) {
|
group[key] = [subject];
|
keys.push(key);
|
}
|
else {
|
group[key].push(subject);
|
}
|
});
|
return [group, keys];
|
};
|
return SubjectExecutor;
|
}());
|
exports.SubjectExecutor = SubjectExecutor;
|
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//# sourceMappingURL=SubjectExecutor.js.map
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