Implemented editing for model instances

events/views.py

@@ -1,9 +1,38 @@
-from django.shortcuts import render, redirect
+from django.shortcuts import render, redirect, get_object_or_404
 from .models import Event
+from .forms import EventForm
+from django.http import HttpResponse
 
 def root(request):
     return redirect('/events/schedule')
 
 def schedule(request):
     events = Event.objects.all()
-    return render(request, 'events/schedule.html', {'title':'Schedule', 'events': events})
+    return render(request, 'events/schedule.html', {'title':'Schedule', 'events': events})
+
+def edit(request, id=0):
+    # if this is a POST request we need to process the form data
+    if request.method == 'POST':
+        # create a form instance and populate it with data from the request:
+        if id:
+            instance = get_object_or_404(Event, id=id)
+            form = EventForm(request.POST or None, instance=instance)
+        else:
+            form = EventForm(request.POST or None)
+        # check whether it's valid:
+        if form.is_valid():
+            # process the data in form.cleaned_data as required
+            # ...
+            # redirect to a new URL:
+            new_event, did_create = Event.objects.update_or_create(pk=id, defaults=form.cleaned_data)
+            return render(request, 'success.html', {'call_back':'players list'})
+
+    # if a GET (or any other method) we'll create a blank form
+    else:
+        if id:
+            instance = get_object_or_404(Event, id=id)
+            form = EventForm(request.POST or None, instance=instance)
+        else:
+            form = EventForm
+
+    return render(request, 'edit.html', {'form': form, 'id': id, 'call_back': 'edit event'})