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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SubjectExecutor = void 0;
const SubjectTopoligicalSorter_1 = require("./SubjectTopoligicalSorter");
const SubjectChangedColumnsComputer_1 = require("./SubjectChangedColumnsComputer");
const SubjectWithoutIdentifierError_1 = require("../error/SubjectWithoutIdentifierError");
const SubjectRemovedAndUpdatedError_1 = require("../error/SubjectRemovedAndUpdatedError");
const BroadcasterResult_1 = require("../subscriber/BroadcasterResult");
const NestedSetSubjectExecutor_1 = require("./tree/NestedSetSubjectExecutor");
const ClosureSubjectExecutor_1 = require("./tree/ClosureSubjectExecutor");
const MaterializedPathSubjectExecutor_1 = require("./tree/MaterializedPathSubjectExecutor");
const OrmUtils_1 = require("../util/OrmUtils");
const ObjectUtils_1 = require("../util/ObjectUtils");
const InstanceChecker_1 = require("../util/InstanceChecker");
/**
* Executes all database operations (inserts, updated, deletes) that must be executed
* with given persistence subjects.
*/
class SubjectExecutor {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
constructor(queryRunner, subjects, options) {
// -------------------------------------------------------------------------
// Public Properties
// -------------------------------------------------------------------------
/**
* Indicates if executor has any operations to execute (e.g. has insert / update / delete operations to be executed).
*/
this.hasExecutableOperations = false;
/**
* Subjects that must be inserted.
*/
this.insertSubjects = [];
/**
* Subjects that must be updated.
*/
this.updateSubjects = [];
/**
* Subjects that must be removed.
*/
this.removeSubjects = [];
/**
* Subjects that must be soft-removed.
*/
this.softRemoveSubjects = [];
/**
* Subjects that must be recovered.
*/
this.recoverSubjects = [];
this.queryRunner = queryRunner;
this.allSubjects = subjects;
this.options = options;
this.validate();
this.recompute();
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Executes all operations over given array of subjects.
* Executes queries using given query runner.
*/
async execute() {
// console.time("SubjectExecutor.execute");
// broadcast "before" events before we start insert / update / remove operations
let broadcasterResult = undefined;
if (!this.options || this.options.listeners !== false) {
// console.time(".broadcastBeforeEventsForAll");
broadcasterResult = this.broadcastBeforeEventsForAll();
if (broadcasterResult.promises.length > 0)
await Promise.all(broadcasterResult.promises);
// console.timeEnd(".broadcastBeforeEventsForAll");
}
// since event listeners and subscribers can call save methods and/or trigger entity changes we need to recompute operational subjects
// recompute only in the case if any listener or subscriber was really executed
if (broadcasterResult && broadcasterResult.count > 0) {
// console.time(".recompute");
this.insertSubjects.forEach((subject) => subject.recompute());
this.updateSubjects.forEach((subject) => subject.recompute());
this.removeSubjects.forEach((subject) => subject.recompute());
this.softRemoveSubjects.forEach((subject) => subject.recompute());
this.recoverSubjects.forEach((subject) => subject.recompute());
this.recompute();
// console.timeEnd(".recompute");
}
// make sure our insert subjects are sorted (using topological sorting) to make cascade inserts work properly
// console.timeEnd("prepare");
// execute all insert operations
// console.time(".insertion");
this.insertSubjects = new SubjectTopoligicalSorter_1.SubjectTopoligicalSorter(this.insertSubjects).sort("insert");
await this.executeInsertOperations();
// console.timeEnd(".insertion");
// recompute update operations since insertion can create updation operations for the
// properties it wasn't able to handle on its own (referenced columns)
this.updateSubjects = this.allSubjects.filter((subject) => subject.mustBeUpdated);
// execute update operations
// console.time(".updation");
await this.executeUpdateOperations();
// console.timeEnd(".updation");
// make sure our remove subjects are sorted (using topological sorting) when multiple entities are passed for the removal
// console.time(".removal");
this.removeSubjects = new SubjectTopoligicalSorter_1.SubjectTopoligicalSorter(this.removeSubjects).sort("delete");
await this.executeRemoveOperations();
// console.timeEnd(".removal");
// recompute soft-remove operations
this.softRemoveSubjects = this.allSubjects.filter((subject) => subject.mustBeSoftRemoved);
// execute soft-remove operations
await this.executeSoftRemoveOperations();
// recompute recover operations
this.recoverSubjects = this.allSubjects.filter((subject) => subject.mustBeRecovered);
// execute recover operations
await this.executeRecoverOperations();
// update all special columns in persisted entities, like inserted id or remove ids from the removed entities
// console.time(".updateSpecialColumnsInPersistedEntities");
this.updateSpecialColumnsInPersistedEntities();
// console.timeEnd(".updateSpecialColumnsInPersistedEntities");
// finally broadcast "after" events after we finish insert / update / remove operations
if (!this.options || this.options.listeners !== false) {
// console.time(".broadcastAfterEventsForAll");
broadcasterResult = this.broadcastAfterEventsForAll();
if (broadcasterResult.promises.length > 0)
await Promise.all(broadcasterResult.promises);
// console.timeEnd(".broadcastAfterEventsForAll");
}
// console.timeEnd("SubjectExecutor.execute");
}
// -------------------------------------------------------------------------
// Protected Methods
// -------------------------------------------------------------------------
/**
* Validates all given subjects.
*/
validate() {
this.allSubjects.forEach((subject) => {
if (subject.mustBeUpdated && subject.mustBeRemoved)
throw new SubjectRemovedAndUpdatedError_1.SubjectRemovedAndUpdatedError(subject);
});
}
/**
* Performs entity re-computations - finds changed columns, re-builds insert/update/remove subjects.
*/
recompute() {
new SubjectChangedColumnsComputer_1.SubjectChangedColumnsComputer().compute(this.allSubjects);
this.insertSubjects = this.allSubjects.filter((subject) => subject.mustBeInserted);
this.updateSubjects = this.allSubjects.filter((subject) => subject.mustBeUpdated);
this.removeSubjects = this.allSubjects.filter((subject) => subject.mustBeRemoved);
this.softRemoveSubjects = this.allSubjects.filter((subject) => subject.mustBeSoftRemoved);
this.recoverSubjects = this.allSubjects.filter((subject) => subject.mustBeRecovered);
this.hasExecutableOperations =
this.insertSubjects.length > 0 ||
this.updateSubjects.length > 0 ||
this.removeSubjects.length > 0 ||
this.softRemoveSubjects.length > 0 ||
this.recoverSubjects.length > 0;
}
/**
* Broadcasts "BEFORE_INSERT", "BEFORE_UPDATE", "BEFORE_REMOVE", "BEFORE_SOFT_REMOVE", "BEFORE_RECOVER" events for all given subjects.
*/
broadcastBeforeEventsForAll() {
const result = new BroadcasterResult_1.BroadcasterResult();
if (this.insertSubjects.length)
this.insertSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastBeforeInsertEvent(result, subject.metadata, subject.entity));
if (this.updateSubjects.length)
this.updateSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastBeforeUpdateEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.diffColumns, subject.diffRelations));
if (this.removeSubjects.length)
this.removeSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastBeforeRemoveEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.identifier));
if (this.softRemoveSubjects.length)
this.softRemoveSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastBeforeSoftRemoveEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.identifier));
if (this.recoverSubjects.length)
this.recoverSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastBeforeRecoverEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.identifier));
return result;
}
/**
* Broadcasts "AFTER_INSERT", "AFTER_UPDATE", "AFTER_REMOVE", "AFTER_SOFT_REMOVE", "AFTER_RECOVER" events for all given subjects.
* Returns void if there wasn't any listener or subscriber executed.
* Note: this method has a performance-optimized code organization.
*/
broadcastAfterEventsForAll() {
const result = new BroadcasterResult_1.BroadcasterResult();
if (this.insertSubjects.length)
this.insertSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastAfterInsertEvent(result, subject.metadata, subject.entity, subject.identifier));
if (this.updateSubjects.length)
this.updateSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastAfterUpdateEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.diffColumns, subject.diffRelations));
if (this.removeSubjects.length)
this.removeSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastAfterRemoveEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.identifier));
if (this.softRemoveSubjects.length)
this.softRemoveSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastAfterSoftRemoveEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.identifier));
if (this.recoverSubjects.length)
this.recoverSubjects.forEach((subject) => this.queryRunner.broadcaster.broadcastAfterRecoverEvent(result, subject.metadata, subject.entity, subject.databaseEntity, subject.identifier));
return result;
}
/**
* Executes insert operations.
*/
async executeInsertOperations() {
// group insertion subjects to make bulk insertions
const [groupedInsertSubjects, groupedInsertSubjectKeys] = this.groupBulkSubjects(this.insertSubjects, "insert");
// then we run insertion in the sequential order which is important since we have an ordered subjects
for (const groupName of groupedInsertSubjectKeys) {
const subjects = groupedInsertSubjects[groupName];
// we must separately insert entities which does not have any values to insert
// because its not possible to insert multiple entities with only default values in bulk
const bulkInsertMaps = [];
const bulkInsertSubjects = [];
const singleInsertSubjects = [];
if (this.queryRunner.connection.driver.options.type === "mongodb") {
subjects.forEach((subject) => {
if (subject.metadata.createDateColumn && subject.entity) {
subject.entity[subject.metadata.createDateColumn.databaseName] = new Date();
}
if (subject.metadata.updateDateColumn && subject.entity) {
subject.entity[subject.metadata.updateDateColumn.databaseName] = new Date();
}
subject.createValueSetAndPopChangeMap();
bulkInsertSubjects.push(subject);
bulkInsertMaps.push(subject.entity);
});
}
else if (this.queryRunner.connection.driver.options.type === "oracle") {
subjects.forEach((subject) => {
singleInsertSubjects.push(subject);
});
}
else {
subjects.forEach((subject) => {
// we do not insert in bulk in following cases:
// - when there is no values in insert (only defaults are inserted), since we cannot use DEFAULT VALUES expression for multiple inserted rows
// - when entity is a tree table, since tree tables require extra operation per each inserted row
// - when oracle is used, since oracle's bulk insertion is very bad
if (subject.changeMaps.length === 0 ||
subject.metadata.treeType ||
this.queryRunner.connection.driver.options.type ===
"oracle" ||
this.queryRunner.connection.driver.options.type ===
"sap") {
singleInsertSubjects.push(subject);
}
else {
bulkInsertSubjects.push(subject);
bulkInsertMaps.push(subject.createValueSetAndPopChangeMap());
}
});
}
// for mongodb we have a bit different insertion logic
if (InstanceChecker_1.InstanceChecker.isMongoEntityManager(this.queryRunner.manager)) {
const insertResult = await this.queryRunner.manager.insert(subjects[0].metadata.target, bulkInsertMaps);
subjects.forEach((subject, index) => {
subject.identifier = insertResult.identifiers[index];
subject.generatedMap = insertResult.generatedMaps[index];
subject.insertedValueSet = bulkInsertMaps[index];
});
}
else {
// here we execute our insertion query
// we need to enable entity updation because we DO need to have updated insertedMap
// which is not same object as our entity that's why we don't need to worry about our entity to get dirty
// also, we disable listeners because we call them on our own in persistence layer
if (bulkInsertMaps.length > 0) {
const insertResult = await this.queryRunner.manager
.createQueryBuilder()
.insert()
.into(subjects[0].metadata.target)
.values(bulkInsertMaps)
.updateEntity(this.options && this.options.reload === false
? false
: true)
.callListeners(false)
.execute();
bulkInsertSubjects.forEach((subject, index) => {
subject.identifier = insertResult.identifiers[index];
subject.generatedMap = insertResult.generatedMaps[index];
subject.insertedValueSet = bulkInsertMaps[index];
});
}
// insert subjects which must be inserted in separate requests (all default values)
if (singleInsertSubjects.length > 0) {
for (const subject of singleInsertSubjects) {
subject.insertedValueSet =
subject.createValueSetAndPopChangeMap(); // important to have because query builder sets inserted values into it
// for nested set we execute additional queries
if (subject.metadata.treeType === "nested-set")
await new NestedSetSubjectExecutor_1.NestedSetSubjectExecutor(this.queryRunner).insert(subject);
await this.queryRunner.manager
.createQueryBuilder()
.insert()
.into(subject.metadata.target)
.values(subject.insertedValueSet)
.updateEntity(this.options && this.options.reload === false
? false
: true)
.callListeners(false)
.execute()
.then((insertResult) => {
subject.identifier = insertResult.identifiers[0];
subject.generatedMap =
insertResult.generatedMaps[0];
});
// for tree tables we execute additional queries
if (subject.metadata.treeType === "closure-table") {
await new ClosureSubjectExecutor_1.ClosureSubjectExecutor(this.queryRunner).insert(subject);
}
else if (subject.metadata.treeType === "materialized-path") {
await new MaterializedPathSubjectExecutor_1.MaterializedPathSubjectExecutor(this.queryRunner).insert(subject);
}
}
}
}
subjects.forEach((subject) => {
if (subject.generatedMap) {
subject.metadata.columns.forEach((column) => {
const value = column.getEntityValue(subject.generatedMap);
if (value !== undefined && value !== null) {
const preparedValue = this.queryRunner.connection.driver.prepareHydratedValue(value, column);
column.setEntityValue(subject.generatedMap, preparedValue);
}
});
}
});
}
}
/**
* Updates all given subjects in the database.
*/
async executeUpdateOperations() {
const updateSubject = async (subject) => {
if (!subject.identifier)
throw new SubjectWithoutIdentifierError_1.SubjectWithoutIdentifierError(subject);
// for mongodb we have a bit different updation logic
if (InstanceChecker_1.InstanceChecker.isMongoEntityManager(this.queryRunner.manager)) {
const partialEntity = this.cloneMongoSubjectEntity(subject);
if (subject.metadata.objectIdColumn &&
subject.metadata.objectIdColumn.propertyName) {
delete partialEntity[subject.metadata.objectIdColumn.propertyName];
}
if (subject.metadata.createDateColumn &&
subject.metadata.createDateColumn.propertyName) {
delete partialEntity[subject.metadata.createDateColumn.propertyName];
}
if (subject.metadata.updateDateColumn &&
subject.metadata.updateDateColumn.propertyName) {
partialEntity[subject.metadata.updateDateColumn.propertyName] = new Date();
}
const manager = this.queryRunner.manager;
await manager.update(subject.metadata.target, subject.identifier, partialEntity);
}
else {
const updateMap = subject.createValueSetAndPopChangeMap();
// for tree tables we execute additional queries
switch (subject.metadata.treeType) {
case "nested-set":
await new NestedSetSubjectExecutor_1.NestedSetSubjectExecutor(this.queryRunner).update(subject);
break;
case "closure-table":
await new ClosureSubjectExecutor_1.ClosureSubjectExecutor(this.queryRunner).update(subject);
break;
case "materialized-path":
await new MaterializedPathSubjectExecutor_1.MaterializedPathSubjectExecutor(this.queryRunner).update(subject);
break;
}
// here we execute our updation query
// we need to enable entity updation because we update a subject identifier
// which is not same object as our entity that's why we don't need to worry about our entity to get dirty
// also, we disable listeners because we call them on our own in persistence layer
const updateQueryBuilder = this.queryRunner.manager
.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);
}
const updateResult = await updateQueryBuilder.execute();
let updateGeneratedMap = updateResult.generatedMaps[0];
if (updateGeneratedMap) {
subject.metadata.columns.forEach((column) => {
const value = column.getEntityValue(updateGeneratedMap);
if (value !== undefined && value !== null) {
const preparedValue = this.queryRunner.connection.driver.prepareHydratedValue(value, column);
column.setEntityValue(updateGeneratedMap, preparedValue);
}
});
if (!subject.generatedMap) {
subject.generatedMap = {};
}
Object.assign(subject.generatedMap, updateGeneratedMap);
}
}
};
// Nested sets need to be updated one by one
// Split array in two, one with nested set subjects and the other with the remaining subjects
const nestedSetSubjects = [];
const remainingSubjects = [];
for (const subject of this.updateSubjects) {
if (subject.metadata.treeType === "nested-set") {
nestedSetSubjects.push(subject);
}
else {
remainingSubjects.push(subject);
}
}
// Run nested set updates one by one
const nestedSetPromise = new Promise(async (ok, fail) => {
for (const subject of nestedSetSubjects) {
try {
await updateSubject(subject);
}
catch (error) {
fail(error);
}
}
ok();
});
// Run all remaining subjects in parallel
await Promise.all([
...remainingSubjects.map(updateSubject),
nestedSetPromise,
]);
}
/**
* Removes all given subjects from the database.
*
* todo: we need to apply topological sort here as well
*/
async executeRemoveOperations() {
// group insertion subjects to make bulk insertions
const [groupedRemoveSubjects, groupedRemoveSubjectKeys] = this.groupBulkSubjects(this.removeSubjects, "delete");
for (const groupName of groupedRemoveSubjectKeys) {
const subjects = groupedRemoveSubjects[groupName];
const deleteMaps = subjects.map((subject) => {
if (!subject.identifier)
throw new SubjectWithoutIdentifierError_1.SubjectWithoutIdentifierError(subject);
return subject.identifier;
});
// for mongodb we have a bit different updation logic
if (InstanceChecker_1.InstanceChecker.isMongoEntityManager(this.queryRunner.manager)) {
const manager = this.queryRunner.manager;
await manager.delete(subjects[0].metadata.target, deleteMaps);
}
else {
// for tree tables we execute additional queries
switch (subjects[0].metadata.treeType) {
case "nested-set":
await new NestedSetSubjectExecutor_1.NestedSetSubjectExecutor(this.queryRunner).remove(subjects);
break;
case "closure-table":
await new ClosureSubjectExecutor_1.ClosureSubjectExecutor(this.queryRunner).remove(subjects);
break;
}
// 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
await this.queryRunner.manager
.createQueryBuilder()
.delete()
.from(subjects[0].metadata.target)
.where(deleteMaps)
.callListeners(false)
.execute();
}
}
}
cloneMongoSubjectEntity(subject) {
const target = {};
if (subject.entity) {
for (const column of subject.metadata.columns) {
OrmUtils_1.OrmUtils.mergeDeep(target, column.getEntityValueMap(subject.entity));
}
}
return target;
}
/**
* Soft-removes all given subjects in the database.
*/
async executeSoftRemoveOperations() {
await Promise.all(this.softRemoveSubjects.map(async (subject) => {
if (!subject.identifier)
throw new SubjectWithoutIdentifierError_1.SubjectWithoutIdentifierError(subject);
let updateResult;
// for mongodb we have a bit different updation logic
if (InstanceChecker_1.InstanceChecker.isMongoEntityManager(this.queryRunner.manager)) {
const partialEntity = this.cloneMongoSubjectEntity(subject);
if (subject.metadata.objectIdColumn &&
subject.metadata.objectIdColumn.propertyName) {
delete partialEntity[subject.metadata.objectIdColumn.propertyName];
}
if (subject.metadata.createDateColumn &&
subject.metadata.createDateColumn.propertyName) {
delete partialEntity[subject.metadata.createDateColumn.propertyName];
}
if (subject.metadata.updateDateColumn &&
subject.metadata.updateDateColumn.propertyName) {
partialEntity[subject.metadata.updateDateColumn.propertyName] = new Date();
}
if (subject.metadata.deleteDateColumn &&
subject.metadata.deleteDateColumn.propertyName) {
partialEntity[subject.metadata.deleteDateColumn.propertyName] = new Date();
}
const manager = this.queryRunner
.manager;
updateResult = await manager.update(subject.metadata.target, subject.identifier, partialEntity);
}
else {
// here we execute our soft-deletion query
// we need to enable entity soft-deletion because we update a subject identifier
// which is not same object as our entity that's why we don't need to worry about our entity to get dirty
// also, we disable listeners because we call them on our own in persistence layer
const softDeleteQueryBuilder = this.queryRunner.manager
.createQueryBuilder()
.softDelete()
.from(subject.metadata.target)
.updateEntity(this.options && this.options.reload === false
? false
: true)
.callListeners(false);
if (subject.entity) {
softDeleteQueryBuilder.whereEntity(subject.identifier);
}
else {
// in this case identifier is just conditions object to update by
softDeleteQueryBuilder.where(subject.identifier);
}
updateResult = await softDeleteQueryBuilder.execute();
}
subject.generatedMap = updateResult.generatedMaps[0];
if (subject.generatedMap) {
subject.metadata.columns.forEach((column) => {
const value = column.getEntityValue(subject.generatedMap);
if (value !== undefined && value !== null) {
const preparedValue = this.queryRunner.connection.driver.prepareHydratedValue(value, column);
column.setEntityValue(subject.generatedMap, preparedValue);
}
});
}
// experiments, remove probably, need to implement tree tables children removal
// if (subject.updatedRelationMaps.length > 0) {
// await Promise.all(subject.updatedRelationMaps.map(async updatedRelation => {
// if (!updatedRelation.relation.isTreeParent) return;
// if (!updatedRelation.value !== null) return;
//
// if (subject.metadata.treeType === "closure-table") {
// await new ClosureSubjectExecutor(this.queryRunner).deleteChildrenOf(subject);
// }
// }));
// }
}));
}
/**
* Recovers all given subjects in the database.
*/
async executeRecoverOperations() {
await Promise.all(this.recoverSubjects.map(async (subject) => {
if (!subject.identifier)
throw new SubjectWithoutIdentifierError_1.SubjectWithoutIdentifierError(subject);
let updateResult;
// for mongodb we have a bit different updation logic
if (InstanceChecker_1.InstanceChecker.isMongoEntityManager(this.queryRunner.manager)) {
const partialEntity = this.cloneMongoSubjectEntity(subject);
if (subject.metadata.objectIdColumn &&
subject.metadata.objectIdColumn.propertyName) {
delete partialEntity[subject.metadata.objectIdColumn.propertyName];
}
if (subject.metadata.createDateColumn &&
subject.metadata.createDateColumn.propertyName) {
delete partialEntity[subject.metadata.createDateColumn.propertyName];
}
if (subject.metadata.updateDateColumn &&
subject.metadata.updateDateColumn.propertyName) {
partialEntity[subject.metadata.updateDateColumn.propertyName] = new Date();
}
if (subject.metadata.deleteDateColumn &&
subject.metadata.deleteDateColumn.propertyName) {
partialEntity[subject.metadata.deleteDateColumn.propertyName] = null;
}
const manager = this.queryRunner
.manager;
updateResult = await manager.update(subject.metadata.target, subject.identifier, partialEntity);
}
else {
// here we execute our restory query
// we need to enable entity restory because we update a subject identifier
// which is not same object as our entity that's why we don't need to worry about our entity to get dirty
// also, we disable listeners because we call them on our own in persistence layer
const softDeleteQueryBuilder = this.queryRunner.manager
.createQueryBuilder()
.restore()
.from(subject.metadata.target)
.updateEntity(this.options && this.options.reload === false
? false
: true)
.callListeners(false);
if (subject.entity) {
softDeleteQueryBuilder.whereEntity(subject.identifier);
}
else {
// in this case identifier is just conditions object to update by
softDeleteQueryBuilder.where(subject.identifier);
}
updateResult = await softDeleteQueryBuilder.execute();
}
subject.generatedMap = updateResult.generatedMaps[0];
if (subject.generatedMap) {
subject.metadata.columns.forEach((column) => {
const value = column.getEntityValue(subject.generatedMap);
if (value !== undefined && value !== null) {
const preparedValue = this.queryRunner.connection.driver.prepareHydratedValue(value, column);
column.setEntityValue(subject.generatedMap, preparedValue);
}
});
}
// experiments, remove probably, need to implement tree tables children removal
// if (subject.updatedRelationMaps.length > 0) {
// await Promise.all(subject.updatedRelationMaps.map(async updatedRelation => {
// if (!updatedRelation.relation.isTreeParent) return;
// if (!updatedRelation.value !== null) return;
//
// if (subject.metadata.treeType === "closure-table") {
// await new ClosureSubjectExecutor(this.queryRunner).deleteChildrenOf(subject);
// }
// }));
// }
}));
}
/**
* Updates all special columns of the saving entities (create date, update date, version, etc.).
* Also updates nullable columns and columns with default values.
*/
updateSpecialColumnsInPersistedEntities() {
// update inserted entity properties
if (this.insertSubjects.length)
this.updateSpecialColumnsInInsertedAndUpdatedEntities(this.insertSubjects);
// update updated entity properties
if (this.updateSubjects.length)
this.updateSpecialColumnsInInsertedAndUpdatedEntities(this.updateSubjects);
// update soft-removed entity properties
if (this.softRemoveSubjects.length)
this.updateSpecialColumnsInInsertedAndUpdatedEntities(this.softRemoveSubjects);
// update recovered entity properties
if (this.recoverSubjects.length)
this.updateSpecialColumnsInInsertedAndUpdatedEntities(this.recoverSubjects);
// remove ids from the entities that were removed
if (this.removeSubjects.length) {
this.removeSubjects.forEach((subject) => {
if (!subject.entity)
return;
subject.metadata.primaryColumns.forEach((primaryColumn) => {
primaryColumn.setEntityValue(subject.entity, undefined);
});
});
}
// other post-persist updations
this.allSubjects.forEach((subject) => {
if (!subject.entity)
return;
subject.metadata.relationIds.forEach((relationId) => {
relationId.setValue(subject.entity);
});
// mongo _id remove
if (InstanceChecker_1.InstanceChecker.isMongoEntityManager(this.queryRunner.manager)) {
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.
*/
updateSpecialColumnsInInsertedAndUpdatedEntities(subjects) {
subjects.forEach((subject) => {
if (!subject.entity)
return;
// set values to "null" for nullable columns that did not have values
subject.metadata.columns.forEach((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((metadata) => metadata.target)
.indexOf(column.target) !== -1)
return;
// entities does not have virtual columns
if (column.isVirtual)
return;
// if column is deletedAt
if (column.isDeleteDate)
return;
// update nullable columns
if (column.isNullable) {
const columnValue = column.getEntityValue(subject.entity);
if (columnValue === undefined)
column.setEntityValue(subject.entity, null);
}
// update relational columns
if (subject.updatedRelationMaps.length > 0) {
subject.updatedRelationMaps.forEach((updatedRelationMap) => {
updatedRelationMap.relation.joinColumns.forEach((column) => {
if (column.isVirtual === true)
return;
column.setEntityValue(subject.entity, ObjectUtils_1.ObjectUtils.isObject(updatedRelationMap.value)
? 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.
*/
groupBulkSubjects(subjects, type) {
const group = {};
const keys = [];
const hasReturningDependColumns = subjects.some((subject) => {
return subject.metadata.getInsertionReturningColumns().length > 0;
});
const groupingAllowed = type === "delete" ||
this.queryRunner.connection.driver.isReturningSqlSupported("insert") ||
hasReturningDependColumns === false;
subjects.forEach((subject, index) => {
const 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];
}
}
exports.SubjectExecutor = SubjectExecutor;
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