btc-weasy-pdf

View mixin and template filters for PDF creation from the HTML-template.

Detailed documentation is in the “docs” directory.

Quick start

Add “weasy_pdf” to your INSTALLED_APPS setting like this:
```
INSTALLED_APPS = (
    ...
    'weasy_pdf',
)
```
Help functions: safety_get_attribute(), safety_parse_dict(), format_date() (see utils.py)

Create data-object. When using the safety_get_attribute() function do not forget to join the related tables (prefetch_related, select_related):

class PDFDataObject:

    def __init__(self, data_obj: MyModel):
        get = safety_get_attribute
        self.data_obj = data_obj

        self.first_name = get(data_obj, 'first_name')
        ...

Prepare PDF template. Use built-in template filters: times, parse_dict:

<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8">

        {% load static %}
        {% load weasy_pdf %}

        <link rel="stylesheet" href="{% static '/styles/pdf.css' %}">

        <title>Title</title>
        <meta name="description" content="Description">
        <meta name="author" content="Author">

    </head>
    <body>
        <span>{{ data_object.first_name }}</span>
        ...
    </body>
</html>

<!-- Filters usage:

{% for i in 8|times %}
    <td colspan="2"></td>
{% endfor %}

<td colspan="5">{{ data_object|parse_dict:'0__NAME' }}</td>
 -->

Prepare view:

class PDFView(WeasyPDFViewMixin):

    template_name = 'pdf.html'
    file_name = 'my_pdf.pdf'

    def get_object(self) -> Any:
        passport = get_object_or_404(Passport, pk=self.kwargs.get('pk'))
        return PDFDataObject(passport)

Example

https://user-images.githubusercontent.com/33987296/74111631-3e981f80-4ba7-11ea-874f-9509ba101c2d.png

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