@athenna/database/src/models/relations/HasOne/HasOneRelation.js

The Athenna database handler for SQL/NoSQL.

/**
 * @athenna/database
 *
 * (c) João Lenon <lenon@athenna.io>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
export class HasOneRelation {
    /**
     * Load a has one relation.
     */
    static async load(model, relation) {
        model[relation.property] = await relation
            .model()
            .query()
            .where(relation.foreignKey, model[relation.primaryKey])
            .when(relation.closure, relation.closure)
            .find();
        return model;
    }
    /**
     * Load all models that has one relation.
     */
    static async loadAll(models, relation) {
        const primaryValues = models.map(model => model[relation.primaryKey]);
        const results = await relation
            .model()
            .query()
            .whereIn(relation.foreignKey, primaryValues)
            .when(relation.closure, relation.closure)
            .findMany();
        const map = new Map();
        results.forEach(result => map.set(result[relation.foreignKey], result));
        return models.map(model => {
            model[relation.property] = map.get(model[relation.primaryKey]);
            return model;
        });
    }
}