salix/print/templates/reports/campaign-metrics/campaign-metrics.js

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

module.exports = {
    name: 'campaign-metrics',
    async serverPrefetch() {
        this.client = await this.fetchClient(this.id);
        this.sales = await this.fetchSales(this.id, this.from, this.to);

        if (!this.client)
            throw new Error('Something went wrong');
    },
    methods: {
        fetchClient(id) {
            return this.findOneFromDef('client', [id]);
        },
        fetchSales(id, from, to) {
            return this.rawSqlFromDef('sales', [id, from, to]);
        },
    },
    components: {
        'report-header': reportHeader.build(),
        'report-footer': reportFooter.build()
    },
    props: {
        id: {
            type: [Number, String],
            required: true,
            description: 'The client id'
        },
        from: {
            required: true
        },
        to: {
            required: true
        }
    }
};