I am using Django to create a website. I have a jinja variable called content
<p>paragraph1</p>
<p>paragraph2</p>
<img... />
<p>paragraph3</p>
...
I know I can truncate it using
{{ content | truncatewords_html:10 | safe }}
but it's not what exactly I want, I want to render the first <p> tag only, how can I do it with jinja?
Thanks!
Not possible AFAIK. You'd need to create a custom template tag.
See: https://www.webforefront.com/django/useandcreatejinjaextensions.html
Related
Imagine the context variable {{ url }} outputs www.example.com/<uuid-string> where <uuid-string> is different every time, whereas the former part of the URL stays the same.
Can one change the output of {{ url }} to instead www.forexample.com/<uuid-string>, via solely manipulating the string in the template and without involving views.py (which I know is the better way to do it, but that's not the question).
An illustrative example would be great.
read about filters and templatetags - they are a methods that allows you to perform some actions on variables in templates.
You can also create your own tags and filters that allow you to perform action non-built into Django template language
Simple example of such filter:
#in templatetags.py
#register.filter(name='duplicate')
def duplicate(value):
return value*2
#in your template
<p> {{ url|duplicate }} </p>
You can find more examples here. Also there you will find tutorial how to use and create them
I've got a blog. Each blog-posts can have multiple downloads. For the downloads I created a component downloads
Currently I render them at the end of each post like this:
{{#each download in sortedDownloads }}
<p>
<a class="dl-button" {{ action "incDownload" download }}>
{{ download.name }} ({{ download.size}}MB)
</a> - {{ download.downloadcount }} Hits
</p>
{{/each}}
I'd like to be able to write something like [downloads] in the post content itself (which is simply rendered via {{{post.parsedBody}}}and replace it with a partial like the above one.
Is this possible or do you have a better way to achieve this?
This does not really look achievable by using either outlet or yield, since the post content will not be interpreted by the render engine.
What should be working though is to have the placeholder in your content just as you mentioned it, and replace it by some identifiable HTML placeholder in your post.parsedBody.
You could then create a View on didInsertElement, and call that view's appendTo() method to render the downloads inside the placeholder.
One could say writing some jquery-ish elements also works, but I think inserting arbitrary elements in the views tree is horrible and goes against the Ember way of managing views tree.
Cheers!
In one of my projects there was need to implement WYSIWYG-editor into django admin. I've installed http://code.google.com/p/django-tinymce/. Everything works well, but there is a problem with rendering the content made with WYSIWYG-editor. As a result, on html page returns special chars instead of normal html-tags and I see "plain" html tags with no html-layout.
Maybe the problem is in the templates? I simply output variable like {{ content }}
try {{ content|safe }}
Marks a string as not requiring
further HTML escaping prior to output.
via safe
In django admin I am using the textarea widget.
When I save data, it is saved inside a <p></p> tag.
I dont want this - any solutions, I just want to get the data out without being wrapped in a <p>.
Any suggestions?
I don't know how to save it without html coding, but maybe it is enough to you to display without that . Just put a |safe in the template after the variable name, example:
{{ variable|safe }}
http://docs.djangoproject.com/en/dev/ref/templates/builtins/?from=olddocs
So, I'm passing an object with a "content" property that contains html.
<div>{{ myobject.content }}</div>
I want to be able to output the content so that the characters are rendered as the html characters.
The contents of "conent" might be: <p>Hello</p>
I want this to be sent to the browser as: &lt;p&gt;Hello&lt;/p>
Is there something I can put in my template to do this automatically?
Yes, {{ myobject.content | escape }} should help (assuming you mean Django templates -- there's no specific "App Engine" templating system, GAE apps often use the Django templating system); you may need to repeat the | escape part if you want two levels of escaping (as appears to be the case in some but not all of the example you supply).
This is Django's django.utils.html.escape function:
def escape(html):
"""Returns the given HTML with ampersands, quotes and carets encoded."""
return mark_safe(force_unicode(html).replace('&', '&').replace('<', '&l
t;').replace('>', '>').replace('"', '"').replace("'", '''))
Also, see here.