Extension of existing template tag

[AgDude]

This is a feature request and patch for a template tag which checks user permission based on a method defined on the model. This template tag will accept either a model instance, or a model form with an instance. This is not backwards compatible with the earlier template tag rulez_perm.

Example:
{% has_perm can_edit pubform as editor %}
{% if editor %}
You can edit this!
{% endif %}

The code:

class RulezPermsNode(template.Node):

def __init__(self, codename, objname, varname):
    self.codename = codename
    self.objname = objname
    self.varname = varname

def render(self, context):
    user_obj = template.resolve_variable('user', context)
    obj = template.resolve_variable(self.objname, context)
    #check if the obj is a model instance
    if not hasattr(obj, 'DoesNotExist'):
        #If obj is a form, then try to get the form instance
        if hasattr(obj.instance, 'DoesNotExist'):
            obj = obj.instance
        else:
            self.codename = 'no permission method found'
    if not user_obj.is_authenticated:
        user_obj = AnonymousUser()
    if hasattr(obj,self.codename):
        context[self.varname] = getattr(obj,self.codename)(user_obj)
    else:
        context[self.varname]=False
    return ''

[chrisglass]

Maybe you should consider sending a pull request instead?
A pretty extensive help page is available here: http://help.github.com/send-pull-requests/

It boils down to:

• Fork the project
• clone your fork
• make a feature branch
• hack hack hack, commit in your feature branch
• push your branch to your fork
• use the github interface to "send a pull request" from your branch.

Voila! Easy and nice!

[AgDude]

Thanks for the tip. I'll look dig into it sometime in the next few days.

btw: I just started using rulez. Thanks for the great work, it seems to be just what I am looking for,

[chrisglass]

Awesome, thanks!

I could very well put your code in, but I think it's a good thing to learn how to make pull requests: it's simple and useful for the future, I suppose.

You're very welcome for django-rulez :) Glad it helps someone else.