Re: Accessing a python function from a blog post stored in the db?

On Wed, Feb 26, 2014 at 5:29 AM, Dennis Marwood <dennismarwood@gmail.com> wrote:
> Thanks. I believe this is what I am looking for. However I am still running
> into an issue w/ the fact that I am pulling my blog entries from the db.
> This is causing the template to interpret the {% image_slider %} as a
> string.
>
> From view.py:
> def blog(request):
> entries =
> Project.objects.filter(destination="blog").order_by('-creation_date')
> return render(request, 'content.html', {"entries": entries,
> "page_title": "Blog",
> "description": "Blog"})
>
> And in content.html:
> {% for each in entries %}
> <p>{{ each.entry }}</p>
> {% endfor %}
>
> And a blog entry:
> Hello! Check out this collection of images. {% image_slider %} And this
> collection! {% image_slider %}
>
>
> I don't want to hard code the inclusion tag in the content.html. Instead I
> want to call it from the blog post. Is this possible?

Yes. You will need to write a custom template tag to parse the
contents of the object as a template, render it within the current
context and return the generated data.

Writing a custom template tag:

https://docs.djangoproject.com/en/1.6/howto/custom-template-tags/#writing-custom-template-tags

Rendering templates to string:

https://docs.djangoproject.com/en/1.6/ref/templates/api/#rendering-a-context

Your content.html would then look something like this, assuming you
called the custom tag 'render':

{% for each in entries %}
<p>{% render each.entry %}</p>
{% endfor %}

Beware the massive security holes if you allow users to generate
content that your site then renders as a template.

Cheers

Tom

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