I'm trying to show partials based on a simple condition. My condition is whether an assignment_tag is True or False.
Templatetag:
from django import template
register = template.Library()
#register.assignment_tag
def partner():
return False
Template:
{% load partner_check %}
{% if partner %}
{% block header %}
{% include 'includes/partner_header.djhtml' %}
{% endblock header %}
{% block footer %}
{% include 'includes/partner_footer.djhtml' %}
{% endblock footer %}
{% endif %}
No matter what I set partner to, the blocks still appear. What am I missing?
Firstly, that's not how assignment tags work. You have never actually called the tag; if partner refers to a (non-existent) template variable named "partner". You call an assignment tag by using it on its own along with a variable to assign it to:
{% partner as partner_value %}
{% if partner_value %}...{% endif %}
Secondly, that's not how blocks work either. You can't dynamically define blocks; they are part of the basic structure of a template, not something that is assigned during evaluation.
I accomplished this by using a context_processor (https://docs.djangoproject.com/en/1.7/ref/settings/#std:setting-TEMPLATE_CONTEXT_PROCESSORS)
Context Processor:
def partners(context):
return {
'partner': False
}
Template:
{% block header %}
{% if partner %}
{% include 'includes/partner_header.djhtml' %}
{% else %}
{{ block.super }}
{% endif %}
{% endblock header %}
{% block footer %}
{% if partner %}
{% include 'includes/partner_footer.djhtml' %}
{% else %}
{{ block.super }}
{% endif %}
{% endblock footer %}
Related
So I am trying to declare a variable inside of my django templates file
{% with object = "{{object.id
}}" %}
{% for detail in details %}
{% if detail.post.id == {{object}} %}
{{detail.name}}
{% endif %}
{% endfor %}
{% endwith %}
I know that with is used to this job, but when i run this code it shows me this error: 'with' expected at least one variable assignment
Please help me. Thank You
The post_id is likely an int so you should specify object as {% with object=2 %}, you furthermore should not use double curly brackets in a template tag:
{% with object=2 %}
{% for detail in details %}
{% if detail.post_id == object %}
{{ detail.name }}
{% endif %}
{% endfor %}
{% endwith %}
It is however not a good idea to filter in the template, since this is not efficient, and requires more memory, normally you filter in the view.
So, I have a number of objects I wish to render in a loop. I.E. Render each of the 5 latest posts on the home page. Each of these posts will be displayed differently whether or not the user is logged in.
I have a question: How would I go about making this distinction? I imagine having a template like this
{% if user.is_logged_in %}
{% for post in latest_posts %}
post.render_long_form
{% endfor %}
{% else %}
{% for post in latest_posts %}
post.render_short_form
{% endfor %}
{% endif %}
How can I make the functions render_short_form and render_long_form return the appropriate HTML snippits? I would like them to call other templates for rendering under the hood.
Thanks!
Why don't not use {% include %} tag?
{% if user.is_logged_in %}
{% for post in latest_posts %}
{% include 'long_form.html' %}
{% endfor %}
{% else %}
{% for post in latest_posts %}
{% include 'short_form.html' %}
{% endfor %}
{% endif %}
Or, more DRY version:
{% for post in latest_posts %}
{% if user.is_logged_in %}
{% include 'long_form.html' %}
{% else %}
{% include 'short_form.html' %}
{% endif %}
{% endfor %}
I tried to make a state_template.html with
{% load inplace_edit %}
{% block extra_header %}
{% inplace_static %}
{% endblock %}
{% inplace_edit "action.action_state" %}
And tables.py has:
action_state = tables.TemplateColumn(template_name='django_tables2/state_template.html', verbose_name="State")
But since action is never being passed to the template, it is giving an error.
Does anyone have any ideas on how to make this work?
This is a very nice question :-)
I think if you update your template (state_template.html), with this should works:
{% load inplace_edit %}
{% block extra_header %}
{% inplace_static %}
{% endblock %}
{% inplace_edit "record.action_state" %}
And this is a recomendation, You should move to the template of the view that renderthe table, but this is only to efficiency:
{% block extra_header %}
{% inplace_static %}
{% endblock %}
In my Django application, the <acronym>...</acronym> tag is displayed as <acronym title='Особо охраняемая прирордная территория'>ООПТ</acronym>.
The template looks like this (the acronym tag appears in cur_goal.description).
{% extends "base.tpl.html" %}
{% block title %}{{ genplan.name }}{% endblock %}
{% block content %}
<h2>{{ category_name }}</h2>
{% for cur_goal in goals %}
<li>{{ cur_goal.description }}</li>
{% endfor %}
{% endblock %}
{% block right_sidebar %}
{% endblock %}
How can I change the code so that the acronym tag is displayed correctly (the braces are not replaced by < and >) ?
As DM says, autoscape tag, or... the safe filter
<li>{{ cur_goal.description|safe }}</li>
Or mark_safe from the python side.
https://docs.djangoproject.com/en/dev/ref/utils/#django.utils.safestring.mark_safe
I'm looking to set a default behavior in a template to be included.
I have a problem with Django template system not allowing to set variables in template (I've read about the Django Philosophy, and I understand it).
Here is my example problem:
I want to include a template to render a newsfeed:
template.html:
...
{% include "_newsfeed.html" with slicing=":20" %}
...
I would like to not be forced to enter the slicing argument, and set a default behavior, let's say ":20"
In my _newsfeed.html , I would like to do (pseudo-code, it doesn't work):
_newsfeed.html:
...
{% if not slicing %}{% with slicing=":20" %}{% endif %}
{% for content in newsfeed_content|slice:slicing %}
{# Display content #}
{% endfor %}
{% if not slicing %}{% endwith %}{% endif %}
Instead, I end up doing this below, that doesn't follow the DRY rule (and doesn't satisfy me!):
_newsfeed.html:
...
{% if not slicing %}{% with slicing=":20" %}
{% for content in newsfeed_content|slice:slicing %}
{# Display content #}
{% endfor %}
{% endwith %}{% else %}
{% for content in newsfeed_content|slice:slicing %}
{# Display content #}
{% endfor %}
{% endif %}
How should I do ?
If you want to do this via your template not your views file, you could create your own filter based on slice e.g.
from django.template.defaultfilters import slice_filter
#register.filter("slice_default", is_safe=True)
def slice_filter_20(value, arg=":20"):
return slice_filter(value, arg)