Removed null=True from some text fields

boards/migrations/0055_auto_20161229_1132.py

@@ -0,0 +1,25 b''
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.4 on 2016-12-29 09:32
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('boards', '0054_auto_20161228_2244'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='post',
+            name='text',
+            field=models.TextField(blank=True, default=''),
+        ),
+        migrations.AlterField(
+            model_name='post',
+            name='title',
+            field=models.CharField(blank=True, default='', max_length=200),
+        ),
+    ]

boards/models/post/__init__.py

@@ -69,9 +69,9 b' class Post(models.Model, Viewable):'
         app_label = APP_LABEL_BOARDS
         ordering = ('id',)
 
-    title = models.CharField(max_length=TITLE_MAX_LENGTH, null=True, blank=True)
+    title = models.CharField(max_length=TITLE_MAX_LENGTH, blank=True, default='')
     pub_time = models.DateTimeField(db_index=True)
-    text = TextField(blank=True, null=True)
+    text = TextField(blank=True, default='')
     _text_rendered = TextField(blank=True, null=True, editable=False)
 
     attachments = models.ManyToManyField(Attachment, null=True, blank=True,