Implemented editing for model instances

events/templates/events/schedule.html

@@ -12,7 +12,7 @@
             {{ event.away_team.name }} vs. {{ event.home_team.name }} <br>
             {{ event.start|date:"l, F j, Y g:i A" }} <br>
             {{ event.venue.name }} <br>
-    <a class="btn btn-primary btn-sm" href="#" role="button">Edit Event Details</a>
+    <a class="btn btn-primary btn-sm" href="{% url 'edit event' event.id%}" role="button">Edit Event Details</a>
     <a class="btn btn-primary btn-sm" href="#" role="button">Edit Lineup</a>
     </li>
 {% endfor %}

events/urls.py

@@ -6,5 +6,8 @@ from . import views
 
 urlpatterns = [
     path('', views.root, name="root"),
-    path('schedule', views.schedule, name="schedule")
+    path('schedule', views.schedule, name="schedule"),
+    path('edit/<int:id>', views.edit, name="edit event"),
+    path('edit', views.edit, name="edit event"),
+    path('edit', views.edit, name="edit event")
 ]

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'})

players/forms.py

@@ -4,4 +4,4 @@ from .models import Player
 class PlayerForm(forms.ModelForm):
     class Meta:
         model = Player
-        fields = ['first_name', 'last_name', 'jersey_number']
+        fields = ['first_name', 'last_name', 'jersey_number', 'team']

players/urls.py

@@ -5,5 +5,6 @@ from . import views
 urlpatterns = [
     path('', views.root, name="root"),
     path('list', views.list, name="players list"),
-    path('edit/<int:id>', views.edit, name="edit player")
+    path('edit/<int:id>', views.edit, name="edit player"),
+    path('edit', views.edit, name="edit player")
 ]

players/views.py

@@ -13,17 +13,22 @@ def list(request):
                                          'items': [(player.id, f"{player.first_name} {player.last_name}") for player in players],
                                          'edit_url_name': 'edit player'})
 
-def edit(request, id=None):
+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:
-        form = PlayerForm(request.POST)
+        if id:
+            instance = get_object_or_404(Player, id=id)
+            form = PlayerForm(request.POST or None, instance=instance)
+        else:
+            form = PlayerForm(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:
-            return HttpResponse(str(form.cleaned_data))
+            new_player, did_create = Player.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:
@@ -33,4 +38,4 @@ def edit(request, id=None):
         else:
             form = PlayerForm
 
-    return render(request, 'players/edit.html', {'form': form, 'id': id})
+    return render(request, 'edit.html', {'form': form, 'id': id, 'call_back':'edit player'})

teams/urls.py

@@ -7,5 +7,6 @@ from . import views
 urlpatterns = [
     path('', views.root, name="root"),
     path('list', views.list, name="teams list"),
-    path('edit/<int:id>', views.edit, name="edit team")
+    path('edit/<int:id>', views.edit, name="edit team"),
+    path('edit', views.edit, name="edit team")
 ]

teams/views.py

@@ -10,17 +10,22 @@ def list(request):
     teams = Team.objects.all()
     return render(request, 'list.html', {'title': "Teams", 'items': [(team.id, f"{team.name}") for team in teams], 'edit_url_name':'edit team'})
 
-def edit(request, id=None):
+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:
-        form = TeamForm(request.POST)
+        if id:
+            instance = get_object_or_404(Team, id=id)
+            form = TeamForm(request.POST or None, instance=instance)
+        else:
+            form = TeamForm(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:
-            return HttpResponse(str(form.cleaned_data))
+            new_team, did_create = Team.objects.update_or_create(pk=id, defaults=form.cleaned_data)
+            return render(request, 'success.html', {'call_back':'teams list'})
 
     # if a GET (or any other method) we'll create a blank form
     else:
@@ -30,4 +35,4 @@ def edit(request, id=None):
         else:
             form = TeamForm
 
-    return render(request, 'venues/edit.html', {'form': form, 'id':id})
+    return render(request, 'edit.html', {'form': form, 'id': id, 'call_back':'edit team'})

templates/success.html

@@ -0,0 +1,12 @@
+{% extends "base.html" %}
+{% block title %} {{ title }}{% endblock %}
+
+{% block content %}
+
+<head>
+    <meta http-equiv="refresh" content="2;url={%  url call_back %}" />
+</head>
+
+<span class="text-success">Success!</span> <span class="text-muted">Redirecting...</span>
+
+{% endblock %}

venues/urls.py

@@ -5,5 +5,6 @@ from . import views
 urlpatterns = [
     path('', views.root, name="root"),
     path('list', views.list, name="venues list"),
-    path('edit/<int:id>', views.edit, name="edit venue")
+    path('edit/<int:id>', views.edit, name="edit venue"),
+    path('edit', views.edit, name="edit venue")
 ]

venues/views.py

@@ -1,6 +1,7 @@
 from django.shortcuts import render, redirect, get_object_or_404
 from django.http import HttpResponse
 from .models import Venue
+from .forms import VenueForm
 
 def root(request):
     return redirect('/venues/list')
@@ -9,18 +10,23 @@ def list(request):
     venues = Venue.objects.all()
     return render(request, 'list.html', {'title': "Venues", 'items': [(venue.id, f"{venue.name}") for venue in venues], 'edit_url_name': 'edit venue'})
 
-from .forms import VenueForm
+
-def edit(request, id=None):
+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:
-        form = VenueForm(request.POST)
+        if id:
+            instance = get_object_or_404(Venue, id=id)
+            form = VenueForm(request.POST or None, instance=instance)
+        else:
+            form = VenueForm(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:
-            return HttpResponse(str(form.cleaned_data))
+            new_venue, did_create = Venue.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:
@@ -30,4 +36,4 @@ def edit(request, id=None):
         else:
             form = VenueForm
 
-    return render(request, 'venues/edit.html', {'form': form, 'id':id})
+    return render(request, 'edit.html', {'form': form, 'id': id, 'call_back': 'edit venue'})