typeorm
Version:
Data-Mapper ORM for TypeScript and ES2023+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.
51 lines • 1.48 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MetadataUtils = void 0;
/**
* Metadata args utility functions.
*/
class MetadataUtils {
/**
* Gets given's entity all inherited classes.
* Gives in order from parents to children.
* For example Post extends ContentModel which extends Unit it will give
* [Unit, ContentModel, Post]
*
* @param entity
*/
static getInheritanceTree(entity) {
const tree = [entity];
const getPrototypeOf = (object) => {
const proto = Object.getPrototypeOf(object);
if (proto?.name) {
tree.push(proto);
getPrototypeOf(proto);
}
};
getPrototypeOf(entity);
return tree;
}
/**
* Checks if this table is inherited from another table.
*
* @param target1
* @param target2
*/
static isInherited(target1, target2) {
return target1.prototype instanceof target2;
}
/**
* Filters given array of targets by a given classes.
* If classes are not given, then it returns array itself.
*
* @param array
* @param classes
*/
static filterByTarget(array, classes) {
if (!classes)
return array;
return array.filter((item) => item.target && classes.indexOf(item.target) !== -1);
}
}
exports.MetadataUtils = MetadataUtils;
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