@blueleader07/typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
111 lines (109 loc) • 4.87 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MaterializedPathSubjectExecutor = void 0;
const OrmUtils_1 = require("../../util/OrmUtils");
/**
* Executes subject operations for materialized-path tree entities.
*/
class MaterializedPathSubjectExecutor {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
constructor(queryRunner) {
this.queryRunner = queryRunner;
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Executes operations when subject is being inserted.
*/
async insert(subject) {
let parent = subject.metadata.treeParentRelation.getEntityValue(subject.entity); // if entity was attached via parent
if (!parent && subject.parentSubject && subject.parentSubject.entity)
// if entity was attached via children
parent = subject.parentSubject.insertedValueSet
? subject.parentSubject.insertedValueSet
: subject.parentSubject.entity;
const parentId = subject.metadata.getEntityIdMap(parent);
let parentPath = "";
if (parentId) {
parentPath = await this.getEntityPath(subject, parentId);
}
const insertedEntityId = subject.metadata
.treeParentRelation.joinColumns.map((joinColumn) => {
return joinColumn.referencedColumn.getEntityValue(subject.insertedValueSet);
})
.join("_");
await this.queryRunner.manager
.createQueryBuilder()
.update(subject.metadata.target)
.set({
[subject.metadata.materializedPathColumn.propertyPath]: parentPath + insertedEntityId + ".",
})
.where(subject.identifier)
.execute();
}
/**
* Executes operations when subject is being updated.
*/
async update(subject) {
let newParent = subject.metadata.treeParentRelation.getEntityValue(subject.entity); // if entity was attached via parent
if (!newParent && subject.parentSubject && subject.parentSubject.entity)
// if entity was attached via children
newParent = subject.parentSubject.entity;
let entity = subject.databaseEntity; // if entity was attached via parent
if (!entity && newParent)
// if entity was attached via children
entity = subject.metadata
.treeChildrenRelation.getEntityValue(newParent)
.find((child) => {
return Object.entries(subject.identifier).every(([key, value]) => child[key] === value);
});
const oldParent = subject.metadata.treeParentRelation.getEntityValue(entity);
const oldParentId = subject.metadata.getEntityIdMap(oldParent);
const newParentId = subject.metadata.getEntityIdMap(newParent);
// Exit if the new and old parents are the same
if (OrmUtils_1.OrmUtils.compareIds(oldParentId, newParentId)) {
return;
}
let newParentPath = "";
if (newParentId) {
newParentPath = await this.getEntityPath(subject, newParentId);
}
let oldParentPath = "";
if (oldParentId) {
oldParentPath =
(await this.getEntityPath(subject, oldParentId)) || "";
}
const entityPath = subject.metadata
.treeParentRelation.joinColumns.map((joinColumn) => {
return joinColumn.referencedColumn.getEntityValue(entity);
})
.join("_");
const propertyPath = subject.metadata.materializedPathColumn.propertyPath;
await this.queryRunner.manager
.createQueryBuilder()
.update(subject.metadata.target)
.set({
[propertyPath]: () => `REPLACE(${propertyPath}, '${oldParentPath}${entityPath}.', '${newParentPath}${entityPath}.')`,
})
.where(`${propertyPath} LIKE :path`, {
path: `${oldParentPath}${entityPath}.%`,
})
.execute();
}
getEntityPath(subject, id) {
return this.queryRunner.manager
.createQueryBuilder()
.select(subject.metadata.targetName +
"." +
subject.metadata.materializedPathColumn.propertyPath, "path")
.from(subject.metadata.target, subject.metadata.targetName)
.whereInIds(id)
.getRawOne()
.then((result) => (result ? result["path"] : ""));
}
}
exports.MaterializedPathSubjectExecutor = MaterializedPathSubjectExecutor;
//# sourceMappingURL=MaterializedPathSubjectExecutor.js.map