salix/print/templates/reports/exportation/exportation.js

const Component = require(`vn-print/core/component`);
const reportHeader = new Component('report-header');
const reportFooter = new Component('report-footer');

module.exports = {
    name: 'exportation',
    async serverPrefetch() {
        this.invoice = await this.fetchInvoice(this.ref);

        if (!this.invoice)
            throw new Error('Something went wrong');

        this.company = await this.findOneFromDef('company', [this.invoice.companyFk]);
    },
    methods: {
        fetchInvoice(ref) {
            return this.findOneFromDef('invoice', [ref]);
        }
    },
    computed: {
        issued: function() {
            const filters = this.$options.filters;

            return filters.date(this.invoice.issued, '%d-%m-%Y');
        }
    },
    components: {
        'report-header': reportHeader.build(),
        'report-footer': reportFooter.build()
    },
    props: {
        ref: {
            type: [Number, String],
            required: true,
            description: 'The invoice ref'
        }
    }
};