del default value of post_type, update gitignore file

.gitignore

@@ -4,6 +4,8 @@
 fet2020/files/*
 fet2020/.env/*
 *.sqlite3
-fet2020/posts/migrations/*
-fet2020/members/migrations/*
+fet2020/*/migrations/*
 .theia/*
+.flake8
+migrate
+run

fet2020/documents/migrations/0002_auto_20200717_1507.py

@@ -1,23 +0,0 @@
-# Generated by Django 3.0.6 on 2020-07-17 13:07
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('documents', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.RemoveField(
-            model_name='document',
-            name='id',
-        ),
-        migrations.AddField(
-            model_name='document',
-            name='key',
-            field=models.CharField(default='', max_length=200, primary_key=True, serialize=False),
-            preserve_default=False,
-        ),
-    ]

fet2020/posts/models.py

@@ -105,7 +105,7 @@ class Post(models.Model):
         ('E', _('Event')),
         ('F', _('FetMeeting'))
     ]
-    post_type = models.CharField(max_length=1, choices=__choices, editable=False, default='N')
+    post_type = models.CharField(max_length=1, choices=__choices, editable=False)
 
     is_event = models.BooleanField(default=False)