salix/modules/ticket/back/methods/ticket/updateEditableTicket.js

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

module.exports = Self => {
    Self.remoteMethodCtx('updateEditableTicket', {
        description: 'Change data of a ticket',
        accessType: 'WRITE',
        accepts: [
            {
                arg: 'id',
                type: 'number',
                required: true,
                description: 'Ticket id',
                http: {source: 'path'}
            },
            {
                arg: 'data',
                description: 'Model instance data',
                type: 'object',
                required: true,
                http: {source: 'body'}
            }
        ],
        returns: {
            type: 'object',
            root: true
        },
        http: {
            path: '/:id/updateEditableTicket',
            verb: 'POST'
        }

    });
    Self.updateEditableTicket = async(ctx, id, data, options) => {
        const myOptions = {};
        let tx;

        if (typeof options == 'object')
            Object.assign(myOptions, options);

        if (!myOptions.transaction) {
            tx = await Self.beginTransaction({});
            myOptions.transaction = tx;
        }

        try {
            const ticketIsEditable = await Self.app.models.Ticket.isEditable(ctx, id, myOptions);
            if (!ticketIsEditable)
                throw new UserError('This ticket can not be modified');

            const ticket = await Self.app.models.Ticket.findById(id, null, myOptions);
            await ticket.updateAttributes(data, myOptions);

            if (tx) await tx.commit();
        } catch (e) {
            if (tx) await tx.rollback();
            throw e;
        }
    };
};