@adonisjs/lucid
Version:
SQL ORM built on top of Active Record pattern
95 lines (94 loc) • 2.51 kB
JavaScript
"use strict";
/*
* @adonisjs/lucid
*
* (c) Harminder Virk <virk@adonisjs.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.LazyLoadAggregates = void 0;
/**
* An implementation for lazy loading model relationship aggregates
*/
class LazyLoadAggregates {
constructor(model) {
Object.defineProperty(this, "model", {
enumerable: true,
configurable: true,
writable: true,
value: model
});
Object.defineProperty(this, "query", {
enumerable: true,
configurable: true,
writable: true,
value: void 0
});
/**
* Model must be persisted before the lazy loading can happen
*/
const Model = this.model.constructor;
/**
* The "refresh" query has the where clause already assigned
*/
this.query = this.model.$getQueryFor('refresh', Model.$adapter.modelClient(this.model));
/**
* Selecting just the primary key
*/
this.query.select(Model.primaryKey);
}
/**
* Load aggregate of relationship
*/
loadAggregate(relationName, userCallback) {
this.query.withAggregate(relationName, userCallback);
return this;
}
/**
* Load count of relationship
*/
loadCount(relationName, userCallback) {
this.query.withCount(relationName, userCallback);
return this;
}
/**
* Execute query
*/
async exec() {
const result = await this.query.first();
if (!result) {
return;
}
/**
* Consume adapter result
*/
this.model.$consumeAdapterResult(result);
}
/**
* Implementation of `then` for the promise API
*/
then(resolve, reject) {
return this.exec().then(resolve, reject);
}
/**
* Implementation of `catch` for the promise API
*/
catch(reject) {
return this.exec().catch(reject);
}
/**
* Implementation of `finally` for the promise API
*/
finally(fullfilled) {
return this.exec().finally(fullfilled);
}
/**
* Required when Promises are extended
*/
get [Symbol.toStringTag]() {
return this.constructor.name;
}
}
exports.LazyLoadAggregates = LazyLoadAggregates;