Check resolution inside a template in Django

Question

Is it possible to use Auth application permission check inside a template in Django? (I want to show a simple form at the end of the template for privileged users)

And more importantly, should I do this at all or is this not a “Django way”?

Answer 1

If you want to check permissions in templates, the following code will suffice:

{% if perms.app_label.can_do_something %} <form here> {% endif %} 

Where the model refers to the model that the user needs permissions to view the form for.

See https://docs.djangoproject.com/en/stable/topics/auth/default/#permissions for more details.

Currently existing user permissions are stored in the template variable {{ perms }}

(To do this, enable the following context processor: django.contrib.auth.context_processors.auth )

Answer 2

If you need more detail when checking perms (for example, for a specific object), check this extension: http://django-authority.readthedocs.org/en/latest/check_templates/

Answer 3

Tested on Django 2.0+

If you want to see all the permissions that the logged in user has, in your template (.html) output:

 {{ perms.app_name }} 

Or

{{ perms }}

To check if a user has permission, use:

 {% if perms.app_name.change_model_name_lower_cased %} 

For example:

 {% if perms.Utilization.change_invoice %} 

Here: Use is the name of my application. Invoice is the name of the model.

Please note that in general there will be 4 types of permissions:

• edit [For example, Utilization.change_projectemail]
• view [For example, Utilization.view_invoice]
• delete [eg Utilization.delete_invoicetype]
• add [For example, Utilization.add_invoicetype]

Also, if you want to see all the permissions that the user has because of the groups to which he belongs, run the Django shell ...

 user = User.objects.get(username='somename') user.get_group_permissions() 

Here, all of the listed permissions belong to the groups to which it belongs.