can now also order topics

markdownblog/blog/migrations/0002_alter_blogpost_title_alter_tag_name_alter_topic_name.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.0.5 on 2022-06-18 08:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('blog', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='blogpost',
+            name='title',
+            field=models.CharField(max_length=255, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='tag',
+            name='name',
+            field=models.CharField(max_length=255, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='topic',
+            name='name',
+            field=models.CharField(max_length=255, unique=True),
+        ),
+    ]

markdownblog/blog/models.py

@@ -2,7 +2,11 @@ from django.db import models
 
 
 class Tag(models.Model):
-    name = models.CharField(max_length=255)
+
+    def __str__(self) -> str:
+        return str(self.name)
+
+    name = models.CharField(max_length=255, unique=True)
 
 
 class Topic(models.Model):
@@ -10,7 +14,7 @@ class Topic(models.Model):
     def __str__(self) -> str:
         return str(self.name)
 
-    name = models.CharField(max_length=255)
+    name = models.CharField(max_length=255, unique=True)
     numbered = models.BooleanField(default=False)
     rootTopic = models.ForeignKey('self', blank=True, null=True, on_delete=models.CASCADE)
 
@@ -22,7 +26,7 @@ class Blogpost(models.Model):
 
     created = models.DateTimeField(auto_now_add=True)
     last_modified = models.DateTimeField(auto_now=True)
-    title = models.CharField(max_length=255)
+    title = models.CharField(max_length=255, unique=True)
     tags = models.ManyToManyField(Tag)
     topic = models.ForeignKey(Topic, blank=True, null=True, on_delete=models.CASCADE)
     mdfile = models.CharField(max_length=255)

markdownblog/blog/views.py

@@ -2,6 +2,7 @@ import os
 import random
 
 from django.contrib.auth.decorators import login_required
+from django.db import IntegrityError
 from django.http import HttpResponse
 from django.shortcuts import render, redirect
 from blog.factories import TopicFactory
@@ -21,17 +22,24 @@ def order(request):
     if request.method == "POST":
         root_id = int(request.POST['rootID']) if request.POST['rootID'] != 'root_list' else None
         child_id = int(request.POST['childID'])
+        objtype = request.POST['relinkType']
 
-        child_topic = Topic.objects.get(pk=child_id)
-        child_topic.rootTopic = Topic.objects.get(pk=root_id) if root_id is not None else None
-        child_topic.save()
+        if objtype == 'topic':
+            child_topic = Topic.objects.get(pk=child_id)
+            child_topic.rootTopic = Topic.objects.get(pk=root_id) if root_id is not None else None
+            child_topic.save()
+        elif objtype == 'post':
+            post = Blogpost.objects.get(pk=child_id)
+            post.topic = Topic.objects.get(pk=root_id) if root_id is not None else None
+            post.save()
 
-    context = {'roottopics': Topic.objects.all().filter(rootTopic=None)}
+    context = {'roottopics': Topic.objects.all().filter(rootTopic=None), 'allposts': Blogpost.objects.all()}
     return render(request, 'blog/order.html', context)
 
 
 @login_required
 def addpost(request) -> HttpResponse:
+    context = {'alltopics': Topic.objects.all().order_by('name').values(), 'markdown': ''}
     if request.method == 'POST':
         title = request.POST['title']
         markdown = request.POST['markdown']
@@ -46,15 +54,21 @@ def addpost(request) -> HttpResponse:
         topicid = request.POST['topic']
         topic = None if topicid == "No topic" else Topic.objects.get(pk=topicid)
 
-        new_post = Blogpost.objects.create(title=title, topic=topic)
-        new_post.tags.set(tags)
+        try:
+            new_post = Blogpost.objects.create(title=title, topic=topic)
+            new_post.tags.set(tags)
+        except IntegrityError:
+            context = {'alltopics': Topic.objects.all().order_by('name').values(),
+                       'error': 'Blogpost titles need to be unique. No post created.',
+                       "markdown": markdown}
+            return render(request, 'blog/addpost.html', context)
 
         filepath = os.path.join(os.environ.get("MD_FILE_PATH"), title + ".md")
         with open(filepath, "w+") as mdfile:
             mdfile.write(markdown)
             mdfile.close()
+        context['error'] = "Post " + title + " created."
 
-    context = {'alltopics': Topic.objects.all().order_by('name').values()}
     return render(request, 'blog/addpost.html', context)