salix/modules/account/back/models/role-inherit.js

const app = require('vn-loopback/server/server');

module.exports = Self => {
    require('../methods/role-inherit/sync')(Self);

    app.on('started', function() {
        let hooks = ['after save', 'after delete'];
        for (let hook of hooks) {
            Self.observe(hook, async() => {
                try {
                    await Self.rawSql(`
                        CREATE EVENT account.role_sync
                            ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 5 SECOND
                            DO CALL role_sync;
                    `);
                } catch (err) {
                    if (err.code != 'ER_EVENT_ALREADY_EXISTS') throw err;
                }
            });
        }
    });
};