Add the CI/CD configuration.

.drone.yaml

@@ -0,0 +1,44 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: install dependencies
+    image: python:3.10-slim
+    volumes:
+      - name: package_cache
+        path: /package_cache
+    commands:
+      - cp .env.example .env
+      - pip install -r dev_requirements.txt --cache-dir=/package_cache
+
+  - name: run migrations
+    image: python:3.10-slim
+    volumes:
+      - name: package_cache
+        path: /package_cache
+    commands:
+      - pip install -r dev_requirements.txt --cache-dir=/package_cache
+      - python manage.py migrate
+
+  - name: run tests
+    image: python:3.10-slim
+    volumes:
+      - name: package_cache
+        path: /package_cache
+    commands:
+      - pip install -r dev_requirements.txt --cache-dir=/package_cache
+      - python manage.py test
+
+volumes:
+- name: package_cache
+  temp: {}
+
+services:
+  - name: postgres
+    image: postgres:15-alpine
+    environment:
+      POSTGRES_DB: postgres_dev
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: testpassword
+

.env-example

@@ -1,2 +0,0 @@
-DEBUG=True
-SECRET_KEY='your-secure-key'

.env.example

@@ -0,0 +1,9 @@
+DEBUG=True
+SECRET_KEY='your-secure-key'
+
+DATABASE_NAME=postgres_dev
+DATABASE_USERNAME=postgres
+DATABASE_PASSWORD=testpassword
+DATABASE_HOST=postgres
+DATABASE_PORT=5432
+

CHANGELOG.org

@@ -15,4 +15,23 @@
    Add the htmx (CDN version).
    Add the task form.
    Add logic to swap the form with the task via htmx.
+** 0.3.1 <2023-07-17 Mon>
+   Add the delete button for a task.
+** 0.3.2 <2023-07-20 Thu>
+   Add the update button for a task.
+** 0.3.3 <2023-07-21 Fri>
+   Add the cancel button for a task form.
+** 0.3.4 <2023-07-21 Fri>
+   Add right alignment for buttons in a task item.
+** 0.3.5 <2023-07-22 Sat>
+   Update the style of buttons.
+** 0.3.6 <2023-07-23 Sun>
+   Add the circular next methods for Task.
+   Add the tests for circular next methods.
+** 0.3.7 <2023-07-23 Sun>
+   Add the action to set the circular next status for Task items.
+** 0.3.8 <2023-07-24 Mon>
+   Update the database to use Postgres.
+** 0.3.9 <2023-07-24 Mon>
+   Add the CI/CD configuration.
 

dev_requirements.txt

@@ -0,0 +1,12 @@
+asgiref==3.7.2
+crispy-tailwind==0.5.0
+Django==4.2.3
+django-browser-reload==1.11.0
+django-crispy-forms==2.0
+django-tailwind==3.6.0
+gunicorn==21.2.0
+packaging==23.1
+psycopg2-binary==2.9.6
+python-dotenv==1.0.0
+sqlparse==0.4.4
+typing_extensions==4.7.1

requirements.txt

@@ -1,8 +1,12 @@
 asgiref==3.7.2
 crispy-tailwind==0.5.0
 Django==4.2.3
+django-browser-reload==1.11.0
 django-crispy-forms==2.0
 django-tailwind==3.6.0
+gunicorn==21.2.0
+packaging==23.1
+psycopg2-binary==2.9.6
 python-dotenv==1.0.0
 sqlparse==0.4.4
 typing_extensions==4.7.1

simple_todo_list/settings.py

@@ -75,8 +75,12 @@ WSGI_APPLICATION = "simple_todo_list.wsgi.application"
 
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.sqlite3",
+        "ENGINE": "django.db.backends.postgresql",
-        "NAME": BASE_DIR / "db.sqlite3",
+        'NAME': os.environ.get('DATABASE_NAME'),
+        'USER': os.environ.get('DATABASE_USERNAME'),
+        'PASSWORD': os.environ.get('DATABASE_PASSWORD'),
+        'HOST': os.environ.get('DATABASE_HOST'),
+        'PORT': os.environ.get('DATABASE_PORT'),
     }
 }
 

tasks/models.py

@@ -25,3 +25,23 @@ class Task(models.Model):
     def __str__(self):
         return self.name
 
+    @staticmethod
+    def get_statuses():
+        return list(map(lambda _: _[1], Task.STATUSES))
+
+    def _get_status_index(self):
+        return Task.get_statuses().index(self.status)
+
+    def circular_next_status_index(self):
+        current_index = self._get_status_index()
+        next_index = (current_index + 1) % len(Task.STATUSES)
+        return next_index
+
+    def circular_next_status(self):
+        next_index = self.circular_next_status_index()
+        return Task.get_statuses()[next_index]
+
+    def set_circular_next_status(self):
+        self.status = self.circular_next_status()
+        self.save()
+

tasks/tests.py

@@ -1,2 +0,0 @@
-from django.test import TestCase
-

tasks/tests/test_task.py

@@ -0,0 +1,53 @@
+from django.test import TestCase
+from tasks.models import Task, Tasks
+
+class TaskTestCase(TestCase):
+    def setUp(self):
+        statuses = ["TODO", "DOING", "DONE", "CANCELED"]
+        names = [f"Test Task {i}" for i in statuses]
+        description = ""
+
+        tasks = [
+            Task(name=name, description=description, status=status)
+            for name, status in zip(names, statuses)
+        ]
+
+        Task.objects.bulk_create(tasks)
+
+    def test__get_status_index_with_existing(self):
+        task = Task.objects.filter(status="DONE").first()
+        index = task._get_status_index()
+        self.assertEqual(index, 2)
+
+    def test_circular_next_status_index_for_todo(self):
+        task = Task.objects.filter(status="TODO").first()
+        index = task.circular_next_status_index()
+        self.assertEqual(index, 1)
+
+    def test_circular_next_status_index_for_canceled(self):
+        task = Task.objects.filter(status="CANCELED").first()
+        next_index = task.circular_next_status_index()
+        self.assertEqual(next_index, 0)
+
+    def test_circular_next_status_for_todo(self):
+        task = Task.objects.filter(status="TODO").first()
+        next_status = task.circular_next_status()
+        self.assertEqual(next_status, "DOING")
+
+    def test_circular_next_status_for_canceled(self):
+        task = Task.objects.filter(status="CANCELED").first()
+        next_status = task.circular_next_status()
+        self.assertEqual(next_status, "TODO")
+
+    def test_set_circular_next_status_for_todo(self):
+        task = Task.objects.filter(status="TODO").first()
+        task.set_circular_next_status()
+        task.refresh_from_db()
+        self.assertEqual(task.status, "DOING")
+
+    def test_set_circular_next_status_for_canceled(self):
+        task = Task.objects.filter(status="CANCELED").first()
+        task.set_circular_next_status()
+        task.refresh_from_db()
+        self.assertEqual(task.status, "TODO")
+

tasks/urls.py

@@ -9,5 +9,10 @@ urlpatterns = [
     path('', views.index, name='index'),
     path('htmx/create-task-form/', views.create_task_form, name='create-task-form'),
     path('htmx/task-item/<id>/', views.task_item, name='task-item'),
+    path('htmx/task-item/<id>/update/', views.task_update, name='task-update'),
+    path('htmx/task-item/<id>/set-circular-next-status/',
+         views.task_set_circular_next_status,
+         name='task-set-circular-next-status'),
+    path('htmx/task-item/<id>/delete/', views.task_delete, name='task-delete'),
 ]
 

tasks/views.py

@@ -1,4 +1,5 @@
 from django.shortcuts import render, redirect, get_object_or_404
+from django.http.response import HttpResponse, HttpResponseNotAllowed
 from .models import Task
 from .forms import TaskForm
 
@@ -42,3 +43,39 @@ def task_item(request, id):
 
     return render(request, "partials/task_item.html", context)
 
+def task_update(request, id):
+    task = get_object_or_404(Task, id=id)
+    task_form = TaskForm(request.POST or None, instance=task)
+
+    if request.method == "POST":
+        if task_form.is_valid():
+            task_form.save()
+            return redirect("tasks:task-item", id=task.id)
+
+    context = {
+        'task': task,
+        'task_form': task_form,
+    }
+
+    return render(request, "partials/task_form.html", context)
+
+def task_set_circular_next_status(request, id):
+    task = get_object_or_404(Task, id=id)
+
+    if request.method == "POST":
+        task.set_circular_next_status()
+
+    context = {
+        'task': task,
+    }
+
+    return render(request, "partials/task_item.html", context)
+
+def task_delete(request, id):
+    task = get_object_or_404(Task, id=id)
+
+    if request.method == "POST":
+        task.delete()
+        return HttpResponse("")
+    return HttpResponseNotAllowed([ "POST" ])
+

templates/partials/task_form.html

@@ -4,6 +4,11 @@
   <form method="POST">
     {% csrf_token %}
     {{ task_form|crispy }}
-    <button type="submit" hx-post=".">Submit</button>
+    {% if task %}
+      <button type="submit" hx-post="{% url 'tasks:task-update' task.id %}">Submit</button>
+      <button hx-post="{% url 'tasks:task-item' task.id %}">Cancel</button>
+    {% else %}
+      <button type="submit" hx-post=".">Submit</button>
+    {% endif %}
   </form>
 </div>

templates/partials/task_item.html

@@ -1,13 +1,34 @@
-<div class="p-2 border rounded-lg inline-flex gap-2 my-2 bg-gray-200">
+<div hx-target="this" class="p-2 border rounded-lg inline-flex gap-2 my-2 bg-gray-200">
   {% if task.status == "TODO" %}
-  <p class="font-semibold text-green-500">
+  <p class="font-semibold text-green-500"
   {% elif task.status == "DOING" %}
-  <p class="font-semibold text-yellow-500">
+  <p class="font-semibold text-yellow-500"
   {% elif task.status == "DONE" or task.status == "CANCELED" %}
-  <p class="font-semibold text-gray-500">
+  <p class="font-semibold text-gray-500"
   {% endif %}
+     hx-post="{% url 'tasks:task-set-circular-next-status' task.id %}"
+     hx-swap="outerHTML">
     {{ task.status }}
   </p>
   <p class="font-semibold">{{ task.name }}</p>
   <p>{{ task.description | truncatewords:10 }}</p>
+
+  <button type="button"
+	  hx-post="{% url 'tasks:task-update' task.id %}"
+	  hx-swap="outerHTML"
+	  class="inline-block px-5 py-1.5 bg-blue-600 text-white font-medium text-xs leading-tight
+          uppercase rounded shadow-md hover:bg-blue-700 hover:shadow-lg focus:bg-blue-700
+          focus:shadow-lg focus:outline-none focus:ring-0 active:bg-blue-800 active:shadow-lg
+          transition duration-150 ease-in-out ml-auto">
+    Update
+  </button>
+  <button type="button"
+	  hx-post="{% url 'tasks:task-delete' task.id %}"
+	  hx-swap="outerHTML"
+	  class="inline-block px-5 py-1.5 bg-red-600 text-white font-medium text-xs leading-tight
+          uppercase rounded shadow-md hover:bg-red-700 hover:shadow-lg focus:bg-red-700
+          focus:shadow-lg focus:outline-none focus:ring-0 active:bg-red-800 active:shadow-lg
+          transition duration-150 ease-in-out">
+    Delete
+  </button>
 </div>

templates/tasks/index.html

@@ -4,7 +4,14 @@
 {% block content %}
   <h1 class="text-3xl font-bold text-center my-2">Tasks</h1>
 
-  <button type="button" hx-get="{% url 'tasks:create-task-form' %}" hx-target="#task-items" hx-swap="beforeend">
+  <button type="button"
+	  hx-get="{% url 'tasks:create-task-form' %}"
+	  hx-target="#task-items"
+	  hx-swap="beforeend"
+	  class="inline-block px-14 py-2.5 bg-green-600 text-white font-medium text-xs leading-tight
+          uppercase rounded shadow-md hover:bg-green-700 hover:shadow-lg focus:bg-green-700
+          focus:shadow-lg focus:outline-none focus:ring-0 active:bg-green-800 active:shadow-lg
+          transition duration-150 ease-in-out mx-auto">
     Add a new task
   </button>