Added constraint on a tag. Fixed creation of new tags

boards/migrations/0068_auto_20171214_0833.py

@@ -0,0 +1,17 b''
+# Generated by Django 2.0 on 2017-12-14 06:33
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('boards', '0067_threadsource'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='tagalias',
+            unique_together={('name', 'locale')},
+        ),
+    ]

boards/models/tag.py

@@ -33,6 +33,7 b' class TagAlias(models.Model, Viewable):'
     class Meta:
         app_label = 'boards'
         ordering = ('name',)
+        unique_together = ('name', 'locale')
 
     objects = TagAliasManager()
 
@@ -42,6 +43,9 b' class TagAlias(models.Model, Viewable):'
     parent = models.ForeignKey('Tag', on_delete=models.CASCADE, null=True,
                                blank=True, related_name='aliases')
 
+    def __str__(self):
+        return self.name
+
 
 class TagManager(models.Manager):
     def get_tag_url_list(self, tags: list) -> str:
@@ -53,7 +57,7 b' class TagManager(models.Manager):'
 
     def get_by_alias(self, alias):
         try:
-            return self.get(aliases__name__in=alias)
+            return self.filter(aliases__name__in=[alias]).first()
         except Tag.DoesNotExist:
             pass
 

boards/templates/boards/post.html

@@ -24,6 +24,9 b''
         {% if post.tripcode %}
             /
             {% with tripcode=post.get_tripcode %}
+                {% comment %}
+                Move this to tripcode.get_url() and cache.
+                {% endcomment %}
                 <a href="{% url 'feed' %}?tripcode={{ tripcode.get_full_text }}"
                    class="tripcode" title="{{ tripcode.get_full_text }}"
                    style="border: solid 2px #{{ tripcode.get_color }}; border-left: solid 1ex #{{ tripcode.get_color }};">{{ tripcode.get_short_text }}</a>

boards/views/tag_threads.py

@@ -1,4 +1,4 b''
-from django.shortcuts import get_object_or_404, redirect
+from django.shortcuts import get_object_or_404, redirect, get_list_or_404
 from django.urls import reverse
 
 from boards.abstracts.settingsmanager import get_settings_manager, \
@@ -42,7 +42,7 b' class TagView(AllThreadsView, Dispatcher'
 
         settings_manager = get_settings_manager(kwargs['request'])
 
-        tag_alias = get_object_or_404(TagAlias, name=self.tag_name)
+        tag_alias = get_list_or_404(TagAlias, name=self.tag_name)[0]
         tag = tag_alias.parent
         params[PARAM_TAG] = tag