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

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

module.exports = Self => {
    Self.remoteMethodCtx('canEdit', {
        description: 'Check if all the received sales are aditable',
        accessType: 'READ',
        accepts: [{
            arg: 'sales',
            type: ['object'],
            required: true
        }],
        returns: {
            type: 'boolean',
            root: true
        },
        http: {
            path: `/canEdit`,
            verb: 'get'
        }
    });

    Self.canEdit = async(ctx, sales, options) => {
        const models = Self.app.models;
        const myOptions = {};

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

        const firstSale = await models.Sale.findById(sales[0], null, myOptions);
        const isTicketEditable = await models.Ticket.isEditable(ctx, firstSale.ticketFk, myOptions);
        if (!isTicketEditable)
            throw new UserError(`The sales of this ticket can't be modified`);

        const saleTracking = await models.SaleTracking.find({where: {saleFk: {inq: sales}}}, myOptions);
        const hasSaleTracking = saleTracking.length;

        const saleCloned = await models.SaleCloned.find({where: {saleClonedFk: {inq: sales}}}, myOptions);
        const hasSaleCloned = saleCloned.length;

        const canEditTracked = await models.Account.aclFunc(ctx, 'editTracked');
        const canEditCloned = await models.Account.aclFunc(ctx, 'editCloned');

        const canEdit = (canEditTracked || !hasSaleTracking) && (canEditCloned || !hasSaleCloned);

        return canEdit;
    };
};