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Customize django admin. Problem with no-model views

Im trying to create a extra view in django admin, on the left navbar. This view will be responsible for uploading a file, which will be parsed in some function (in future i would like to render result of this parsing in admin page). This file wont be saved in database, so there wont be a model. Is there any possibility to add a view to django admin (left navbar) which dont have a model? I was reading a lot, and could find a solution. What i have done for now:
Created a class which inherits from AdminSite. I tried to implement get_app_list method, but variable self._build_app_dict(request) was empty array, and this means, method couldn't find a installed aps. I wanted to add new object to app_list variable, to render it on website.
Tried to override a admin templates, but couldnt render it. I tried to override app_index.html which i put on folder: app_name/templates/admin/app_index.html
Here is my code, which ofc doesnt work:
class MyCustomAdmin(AdminSite):
def get_app_list(self, request):
"""
Return a sorted list of all the installed apps that have been
registered in this site.
"""
app_dict = self._build_app_dict(request)
breakpoint()
app_list = sorted(app_dict.values(), key=lambda x: x['name'].lower())
for app in app_list:
app['models'].sort(key=lambda x: x['name'])
return app_list
def get_urls(self):
from django.conf.urls import url
urls = super(MyCustomAdmin, self).get_urls()
urls += [
url(r'^my_custom_view/$', self.admin_view(MyCustomView.as_view()))
]
return urls
class MyCustomView(View):
template_name = 'admin/app_index.html'
def get(self, request):
print('fefef')
return render(request, self.template_name, {})
def post(self, request):
pass
admin_site = MyCustomAdmin()
admin_site.get_app_list(AdminSite.get_app_list)

Wagtail route still returns 404

I encountered a bit weird problem and not really sure why it happens.
This is my model:
class PostIndexPage(RoutablePage):
max_count = 1
parent_page_types = []
intro = RichTextField(blank=True)
content_panels = Page.content_panels + [
FieldPanel('intro', classname="full")
]
#route(r'^posts/$')
def main(self, request):
from django.shortcuts import render
return render(request, self.get_template(request), self.get_context(request))
I defined route in that model but it seems to have no effect.
http://127.0.0.1:8000/post-index-page/ - the old url is still working the old way
http://127.0.0.1:8000/posts/ - but this one doesn't (404, not found).
Do you have any idea what I'm doing wrong?

URL routes defined by #route on a RoutablePage are relative to the normal path of the page, as determined by its slug and position in the page tree. If you created a routable page with the slug post-index-page, the posts route will be found at /post-index-page/posts/.
If you want a view that remains at a completely fixed URL, you can always define that as a standard Django view.

Django redirecting url with changed values

I have urls that take a parameter called board_slug. Before getting the template the view will replace the slug if its name is wrong and redirect it. I have already made the code for fixing the slug but do not know how insert the fixed board_slug into the new url. This code is run across multiple views so it has to work with all the following kinds urls:
url(r'^boards/(?P<board_slug>[^/]+)/$', views.BoardView.as_view(), name='board'),
url(r'^/front-thing/boards/(?P<board_slug>[^/]+)/new/$', views.BoardView.as_view(), name='new_board'),
url(r'^boards/(?P<board_slug>[^/]+)/etc...$', views.BoardView.as_view(), name='anything_with_board'),
class BoardView(View):
template_name = 'forums/board.html'
def get(self, request, board_slug):
if wrong:
url = get_django_url
url.board_slug = 'new-slug'
return redirect(url)
else:
return template

Django admin - add custom link to change list view

Firstly thanks for taking the time to read my problem
I tried to add a custom button to my admin changeList view, but it always gives me Page not found (404)
This my modelAdmin code:
class MyModelAdmin(admin.ModelAdmin):
class Media:
js = ('admin/js/additional_js.js',)
model = MyModel
def get_urls(self):
urls = super(MyModelAdmin, self).get_urls()
analyze_url = patterns('',
(r'^(?P<pk>\d+)/analyze/$',
self.admin_site.admin_view(self.analyze_view))
)
return analyze_url + urls
def analyze_view(self, request, pk):
# some code here
HttpResponseRedirect(
reverse('admin:myapp_MyModel_change', args=(pk,))
)
My jQuery code for adding custom link to change list view:
(function($) {
$(document).ready(function($) {
$(".object-tools").append('<li>Analyze</li>');
});
})(django.jQuery);
when I click my custom link it gives me this:
MyModel object with primary key '3/change/analyze' does not exist.
I see that the link does not point to the view
Can someone help me fix this issue.
Thanks

In Django 1.9, the admin change url has changed to /admin/<app>/<model>/<pk>/change/ (release notes).
Therefore, it doesn't make sense to link to href="analyze/" in your html. The relative url is treated as /admin/<app>/<model>/3/change/analyze, not /admin/<app>/<model>/3/analyze as you expect.
You can probably fix the problem by changing the link to:
<a href="../analyze/" ...
Ideally, it would be better to reverse the url rather than having a relative link. I think this would make the code less fragile.
Since you are using Django 1.9, you can update your code to use a list rather than patterns:
from django.conf.urls import url
analyze_url = [
url(r'^(?P<pk>\d+)/analyze/$', self.admin_site.admin_view(self.analyze_view)),
]

Django Admin Custom Pages and Features

I'm (new to) working in Django and would like to create two features that do not rely upon models/database tables. The basis of this app is as a web-based wrapper to a Python application.
The features are:
I would like to be able to load a ConfigObj text file into a page and edit it's configuration prior to saving again.
I would like to be able to call command line python/bash scripts and display their output on a page - like exec in PHP.
At the moment I'm working on simple custom admin pages without model as described here:
Django admin, section without "model"?
Would this be the right direction to go in? I'm not sure proxy tables apply as the features I desire have nothing to do with any data.
So far I have looked at is it possible to create a custom admin view without a model behind it and a few other links. At the moment I have:
main/urls.py
url(r'^admin/weectrl', include('weectrl.urls')),
which links with weectrl/urls.py
from weectrl import views
urlpatterns = patterns('',
(r'^admin/weectrl/manage/$', weectrl_manage_view),
(r'^admin/weectrl/config/$', weectrl_config_view),
)
which points to weectrl/views.py
def weectrl_manage_view(request):
r = render_to_response('admin/weectrl/manage.html', context, RequestContext(request))
return HttpResponse(r)
def weectrl_config_view(request):
r = render_to_response('admin/weectrl/config.html', context, RequestContext(request))
return HttpResponse(r)
The current error message is name 'weectrl_manage_view' is not defined

Ok, found something that works.
In the main url.py
url(r'^admin/weectrl/', include('weectrl.urls')),
In app/urls.py
urlpatterns = patterns('',
url(r'^config/$', views.config, name='config'),
url(r'^manage/$', views.manage, name='manage'),
)
and in app/views.py
def config(request):
context = ""
return render(request, 'weectrl/config.html', context)
def manage(request):
context = ""
return render(request, 'weectrl/manage.html', context)
html files are in app/templates/app/...