How to create a template for another?

Question

I have some templates that I create from some data that I saved in my database:

my_template = Template(string_data)

Now I want this template to expand another one (also saved as text in the database). How can i do this? Looking for something like:

my_template.base = other_template

Or regardless of syntax. Cannot find documentation on this.

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I see template.nodelist in the source; can i possibly add some node extensions?

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Added generosity ... will provide the first person who can tell me how to do this without breaking the django core.

Answer 1

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{% extends "myinstance.html_version" %}

load_template_source:

def load_template_source(self, template_name, template_dirs=None):
    name, field = template_name.split('.')
    tpl = TemplateModel.objects.get(name=name)
    return getattr(tpl, field)

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    tpl_string = get_template_from_wherever()
    extender = '{% extends "%s" %}' % template_name_to_extend
    tpl = Template(extender + tpl_string)

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Answer 2

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class SpecialExtendsNode(ExtendsNode):

    def __init__( self, nodelist, parent, name ):
        self.myparent = parent
        ExtendsNode.__init__( self, nodelist, name, None, None )

    def get_parent( self ):
        return self.myparent

:

parent = Template( parent_string )
child = Template( child_string )
hack = SpecialExtendsNode( child.nodelist, parent, "parent name" )
child.nodelist.insert( 0, hack )
output = child.render( context )

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Answer 3

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Answer 4

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Answer 5

from app.models.misc import EmailTemplate
from django.template import TemplateDoesNotExist
from django.template.loader import BaseLoader

class Loader(BaseLoader):
    is_usable = True
    def load_template_source(self, template_name, template_dirs=None):
        try:
            key, ext = template_name.split('.')
            attr = {
                'html': 'html_content',
                'txt': 'text_content',
            }[ext]
            tpl = EmailTemplate.objects.get(key=key)
            return (getattr(tpl, attr), repr(tpl))
        except:
            raise TemplateDoesNotExist

It is really hard to write if you cannot find the updated documentation: \