confirm before project deletion

issue/decorators.py

@@ -2,6 +2,8 @@ from functools import wraps
 
 from django.contrib.auth.decorators import login_required
 from django.http import HttpResponseForbidden
+from django.shortcuts import render
+from django.core.urlresolvers import reverse
 
 from issue.models import Project
 
@@ -24,3 +26,30 @@ def project_perm_required(perm):
         return wrapper
 
     return decorator
+
+def confirmation_required(message, previous=None):
+
+    def decorator(view):
+        @wraps(view)
+        def wrapper(request, *args, **kwargs):
+            if request.GET.get('force'):
+                return view(request, *args, **kwargs)
+            prev = previous
+            if not prev:
+                prev = request.GET.get('prev')
+                if not prev:
+                    # improvising
+                    if hasattr(request, 'project'):
+                        prev = reverse('list-issue',
+                            args=[request.project.name])
+                    else:
+                        prev = reverse('list-project')
+            c = {
+                'message': message,
+                'prev': prev,
+                'next': request.path + '?force=1',
+            }
+            return render(request, 'confirm.html', c)
+        return wrapper
+
+    return decorator