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

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

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

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

        let promises = [];
        for (let i = 0; i < params.sales.length; i++)
            promises.push(Self.app.models.Sale.destroyById(params.sales[i].id));

        return Promise.all(promises);
    };
};