Django 1,11 upgrade, render template with context in template.Node

[Christian Ledermann]

In Django 1,8 it worked but in Django 1.11 it throws:

TypeError: context must be a dict rather than RequestContext.

The code is:

class EpilogueNode(template.Node):

def __init__(self): # noqa: D102
self.epilogue_template =
template.loader.get_template('themes/presenter_epilogue.html')

def render(self, context): # noqa: D102
rendered = self.epilogue_template.render(context)

In https://docs.djangoproject.com/en/1.11/ref/templates/upgrading/ it
is documeted that I need to pass a dict as context, but the context
passed to Node,render is a
RequestContext.

How can I upgrade this to 1.11?



--
Best Regards,

Christian Ledermann

Newark-on-Trent - UK
Mobile : +44 7474997517

https://uk.linkedin.com/in/christianledermann
https://github.com/cleder/


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2) Don’t destroy a habitat that species rely on.

3) Don’t change the climate in ways that will result in the above.

}<(((*>

[Bernd Wechner]

Can't say I'm experienced with template.Node, but you piqued my curiosity so I found this:

https://stackoverflow.com/questions/14434624/how-to-get-dictionary-of-requestcontext-imported-from-django-template

which may help, but am left wondering why upgrade to 1.11 when 2.0 is out already and the way to go? I'm on 1.11 and about to move to 2.0.

Regards,

Bernd.

[Christian Ledermann]

cool thanks I try that :-)
Django 1.11 vs 2.x => we are still on python 2.7 so the first step is
Django 1.11 with python 2.7, that 1.11 upgrade to python 3.x and
afterwards (well you get the timeline)
Our codebase is 11 years old so there are some stumble blocks upgrading.

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[Christian Ledermann]

For the record,
I ended up with:

def get_context_dict_request(context):
"""Decompose a Context or a RequestContext to a request and dict."""
ctx = context.flatten()
try:
request = context.request
except AttributeError:
request = None
return ctx, request

class EpilogueNode(template.Node):

def __init__(self): # noqa: D102
self.epilogue_template =
template.loader.get_template('themes/presenter_epilogue.html')

def render(self, context): # noqa: D102

context, request = get_context_dict_request(context)
rendered = self.epilogue_template.render(context=context,
request=request)

On 5 March 2018 at 08:49, Christian Ledermann