Reusing django re-usable apps
There's certainly the {% include %} tag, which allows you to include templates directly inside of another template. It also gets everything that the enclosed template gets, so if you are using the RequestContext that means it has access to everything in the request variable.
However, it seems you're saying that you want to somehow actually call the register view and login views and embed the result into your page. This could in theory be possible by writing a custom tag that calls the URL using an http GET and then outputting the resulting HTML from the request.
I wouldn't recommend this. Instead, for the front page, go ahead and create two forms that point to the appropriate URLs in the django-registration application.
I was wondering if this would be possible to implement (as an app/middleware):
I install the django-registration app. I then create my site-base app for making some generic page views. I want to put a login form and a registration form on a the front page. So I go in and I modify the /register/login.html and the register/register.html templates to fit my front page design (html stuff). I then go to my main page index.html file and I go to the spot in my html where I want those blocks (login & register) to go, and I add {% load "register/login.html" %} and a {% load "register/register.html" %}. Now, when the urlconf calls my index's view, the template will reach the LOAD trigger and will call the LOGIN view so that all of its form.elements are passed to it, and the REGISTER view is called for its elements too. Then, those completed (rendered) views are passed to my index.html and plugged into the spot where I put the LOAD statements.
Can the above be done currently? My goal is to take the various apps available and plug them into my project without touching any of their code (I want to ensure that I can upgrade the individual apps later and not break anything in my project because I added custom stuff...).
If the above is possible currently, could someone please provide some documentation/tutorials/howtos for best practices in re-using other peoples apps?