45 - Raw Update Class Based View

Author: codingforentrepreneurs

src/courses/templates/courses/course_update.html

@@ -0,0 +1,14 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<h1>Update: {{object.id }} - {{ object.title }}</h1>
+
+<form action='.' method='POST'>{% csrf_token %}
+    {{ form.as_p }}
+    <input type='submit' value='Save' />
+</form>
+
+
+
+
+{% endblock %}

src/courses/urls.py

@@ -2,7 +2,8 @@
 from .views import (
     CourseView,
     CourseListView,
-    CourseCreateView
+    CourseCreateView,
+    CourseUpdateView
     # my_fbv
 )
 
@@ -14,6 +15,6 @@
 
     path('create/', CourseCreateView.as_view(), name='courses-create'),
     path('<int:id>/', CourseView.as_view(), name='courses-detail'),
-    # path('<int:id>/update/', <update_view>, name='courses-update'),
+    path('<int:id>/update/', CourseUpdateView.as_view(), name='courses-update'),
     # path('<int:id>/delete/', <delete_view>, name='courses-delete'),
 ]

src/courses/views.py

@@ -5,6 +5,39 @@
 from .models import Course 
 # BASE VIEW CLass = VIEW
 
+
+class CourseUpdateView(View):
+    template_name = "courses/course_update.html" # DetailView
+    def get_object(self):
+        id = self.kwargs.get('id')
+        obj = None
+        if id is not None:
+            obj = get_object_or_404(Course, id=id)
+        return obj
+
+    def get(self, request, id=None, *args, **kwargs):
+        # GET method
+        context = {}
+        obj = self.get_object()
+        if obj is not None:
+            form = CourseModelForm(instance=obj)
+            context['object'] = obj
+            context['form'] = form
+        return render(request, self.template_name, context)
+
+    def post(self, request, id=None,  *args, **kwargs):
+        # POST method
+        context = {}
+        obj = self.get_object()
+        if obj is not None:
+            form = CourseModelForm(request.POST, instance=obj)
+            if form.is_valid():
+                form.save()
+            context['object'] = obj
+            context['form'] = form
+        return render(request, self.template_name, context)
+
+
 class CourseCreateView(View):
     template_name = "courses/course_create.html" # DetailView
     def get(self, request, *args, **kwargs):