numerus/web/template/invoices/view.gohtml

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{{ define "title" -}}
{{ .Number | printf ( pgettext "Invoice %s" "title" )}}
{{- end }}
{{ define "content" }}
{{- /*gotype: dev.tandem.ws/tandem/numerus/pkg.invoice*/ -}}
<nav>
<p>
<a href="{{ companyURI "/" }}">{{( pgettext "Home" "title" )}}</a> /
<a href="{{ companyURI "/invoices"}}">{{( pgettext "Invoices" "title" )}}</a> /
<a>{{ .Number }}</a>
</p>
Convert invoices to PDF with WeasyPrint Although it is possible to just print the invoice from the browser, many people will not even try an assume that they can not create a PDF for the invoice. I thought of using Groff or TeX to create the PDF, but it would mean maintaining two templates in two different systems (HTML and whatever i would use), and would probably look very different, because i do not know Groff or TeX that well. I wish there was a way to tell the browser to print to PDF, and it can be done, but only with the Chrome Protocol to a server-side running Chrome instance. This works, but i would need a Chrome running as a daemon. I also wrote a Qt application that uses QWebEngine to print the PDF, much like wkhtmltopdf, but with support for more recent HTML and CSS standards. Unfortunately, Qt 6.4’s embedded Chromium does not follow break-page-inside as well as WeasyPrint does. To use WeasyPrint, at first i wanted to reach the same URL as the user, passing the cookie to WeasyPrint so that i can access the same invoice as the user, something that can be done with wkhtmltopdf, but WeasyPrint does not have such option. I did it with a custom Python script, but then i need to package and install that script, that is not that much work, but using the Debian-provided script is even less work, and less likely to drift when WeasyPrint changes API. Also, it is unnecessary to do a network round-trip from Go to Python back to Go, because i can already write the invoice HTML as is to WeasyPrint’s stdin.
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<p>
<a class="primary button" href="{{ companyURI "/invoices/new"}}?duplicate={{ .Slug }}">{{( pgettext "Duplicate" "action" )}}</a>
Convert invoices to PDF with WeasyPrint Although it is possible to just print the invoice from the browser, many people will not even try an assume that they can not create a PDF for the invoice. I thought of using Groff or TeX to create the PDF, but it would mean maintaining two templates in two different systems (HTML and whatever i would use), and would probably look very different, because i do not know Groff or TeX that well. I wish there was a way to tell the browser to print to PDF, and it can be done, but only with the Chrome Protocol to a server-side running Chrome instance. This works, but i would need a Chrome running as a daemon. I also wrote a Qt application that uses QWebEngine to print the PDF, much like wkhtmltopdf, but with support for more recent HTML and CSS standards. Unfortunately, Qt 6.4’s embedded Chromium does not follow break-page-inside as well as WeasyPrint does. To use WeasyPrint, at first i wanted to reach the same URL as the user, passing the cookie to WeasyPrint so that i can access the same invoice as the user, something that can be done with wkhtmltopdf, but WeasyPrint does not have such option. I did it with a custom Python script, but then i need to package and install that script, that is not that much work, but using the Debian-provided script is even less work, and less likely to drift when WeasyPrint changes API. Also, it is unnecessary to do a network round-trip from Go to Python back to Go, because i can already write the invoice HTML as is to WeasyPrint’s stdin.
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<a class="primary button"
href="{{ companyURI "/invoices/" }}{{ .Slug }}.pdf"
download="{{ .Number}}.pdf">{{( pgettext "Download invoice" "action" )}}</a>
</p>
</nav>
Convert invoices to PDF with WeasyPrint Although it is possible to just print the invoice from the browser, many people will not even try an assume that they can not create a PDF for the invoice. I thought of using Groff or TeX to create the PDF, but it would mean maintaining two templates in two different systems (HTML and whatever i would use), and would probably look very different, because i do not know Groff or TeX that well. I wish there was a way to tell the browser to print to PDF, and it can be done, but only with the Chrome Protocol to a server-side running Chrome instance. This works, but i would need a Chrome running as a daemon. I also wrote a Qt application that uses QWebEngine to print the PDF, much like wkhtmltopdf, but with support for more recent HTML and CSS standards. Unfortunately, Qt 6.4’s embedded Chromium does not follow break-page-inside as well as WeasyPrint does. To use WeasyPrint, at first i wanted to reach the same URL as the user, passing the cookie to WeasyPrint so that i can access the same invoice as the user, something that can be done with wkhtmltopdf, but WeasyPrint does not have such option. I did it with a custom Python script, but then i need to package and install that script, that is not that much work, but using the Debian-provided script is even less work, and less likely to drift when WeasyPrint changes API. Also, it is unnecessary to do a network round-trip from Go to Python back to Go, because i can already write the invoice HTML as is to WeasyPrint’s stdin.
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<link rel="stylesheet" type="text/css" href="/static/invoice.css">
<article class="invoice">
<header>
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<div>
<h1>{{ .Number | printf ( pgettext "Invoice %s" "title" )}}</h1>
<p class="date">{{( pgettext "Date" "title" )}} {{ .Date | formatDate }}</p>
</div>
<address class="invoicer">
{{ .Invoicer.Name }}<br>
{{ .Invoicer.VATIN }}<br>
{{ .Invoicer.Address }}<br>
{{ .Invoicer.City }} ({{ .Invoicer.PostalCode}}), {{ .Invoicer.Province }}<br>
{{ .Invoicer.Email }}<br>
{{ .Invoicer.Phone }}<br>
</address>
<p class="legal">{{ .LegalDisclaimer }}</p>
</header>
<div>
<address class="invoicee">
{{ .Invoicee.Name }}<br>
{{ .Invoicee.VATIN }}<br>
{{ .Invoicee.Address }}<br>
{{ .Invoicee.City }} ({{ .Invoicee.PostalCode}}), {{ .Invoicee.Province }}<br>
</address>
{{- $columns := 5 | add (len .TaxClasses) | add (boolToInt .HasDiscounts) -}}
<table>
<thead>
<tr>
<th>{{( pgettext "Concept" "title" )}}</th>
<th class="numeric">{{( pgettext "Price" "title" )}}</th>
{{ if .HasDiscounts -}}
<th class="numeric">{{( pgettext "Discount" "title" )}}</th>
{{ end -}}
<th class="numeric">{{( pgettext "Units" "title" )}}</th>
<th class="numeric">{{( pgettext "Subtotal" "title" )}}</th>
{{ range $class := .TaxClasses -}}
<th class="numeric">{{ . }}</th>
{{ end -}}
<th class="numeric">{{( pgettext "Total" "title" )}}</th>
</tr>
</thead>
{{ $lastIndex := len .Products | sub 1 }}
{{ range $index, $product := .Products -}}
<tbody>
{{- if .Description }}
<tr class="name">
<td colspan="{{ $columns }}">{{ .Name }}</td>
</tr>
{{ end -}}
<tr>
{{- if .Description }}
<td>{{ .Description }}</td>
{{- else }}
<td>{{ .Name }}</td>
{{- end -}}
<td class="numeric">{{ .Price | formatPrice }}</td>
{{ if $.HasDiscounts -}}
<td class="numeric">{{ $product.Discount | formatPercent }}</td>
{{ end -}}
<td class="numeric">{{ .Quantity }}</td>
<td class="numeric">{{ .Subtotal | formatPrice }}</td>
{{ range $class := $.TaxClasses -}}
<td class="numeric">{{ index $product.Taxes $class | formatPercent }}</td>
{{ end -}}
<td class="numeric">{{ .Total | formatPrice }}</td>
</tr>
{{ if (eq $index $lastIndex) }}
<tr class="tfoot separator">
<th scope="row" colspan="{{ $columns | sub 1 }}">{{( pgettext "Tax Base" "title" )}}</th>
<td class="numeric">{{ $.Subtotal | formatPrice }}</td>
</tr>
{{ range $tax := $.Taxes -}}
<tr class="tfoot">
<th scope="row" colspan="{{ $columns | sub 1 }}">{{ index . 0 }}</th>
<td class="numeric">{{ index . 1 | formatPrice }}</td>
</tr>
{{- end }}
<tr class="tfoot">
<th scope="row" colspan="{{ $columns | sub 1 }}">{{( pgettext "Total" "title" )}}</th>
<td class="numeric">{{ $.Total | formatPrice }}</td>
</tr>
{{ end }}
</tbody>
{{- end }}
</table>
{{ if .Notes -}}
<p class="notes">{{ .Notes }}</p>
{{- end }}
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<p class="payment-instructions">{{ .PaymentInstructions }}</p>
</div>
</article>
{{- end}}