salix/modules/ticket/back/methods/sale/reserve.js

let UserError = require('vn-loopback/util/user-error');

module.exports = Self => {
    Self.remoteMethod('reserve', {
        description: 'Change the state of a ticket',
        accessType: 'WRITE',
        accepts: [{
            arg: 'params',
            type: 'object',
            required: true,
            description: '[sales IDs], ticketFk, reserved',
            http: {source: 'body'}
        }],
        returns: {
            type: 'string',
            root: true
        },
        http: {
            path: `/reserve`,
            verb: 'post'
        }
    });

    Self.reserve = async params => {
        let thisTicketIsEditable = await Self.app.models.Ticket.isEditable(params.ticketFk);
        if (!thisTicketIsEditable)
            throw new UserError(`The sales of this ticket can't be modified`);

        for (let i = 0; i < params.sales.length; i++)
            await Self.app.models.Sale.update({id: params.sales[i].id}, {reserved: params.reserved});
    };
};