Added migrations for the available logos and move old values to new ones, remove old entries in the database

openslides/core/migrations/0008_changed_logo_fields.py

@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+# Generated by Finn Stutzenstein on 2018-07-13 12:43 :)
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+from openslides.core.config import config
+
+
+def logos_available_default_to_database(apps, schema_editor):
+    """
+    Writes the new default value of the 'logos_available' into the database.
+    """
+    ConfigStore = apps.get_model('core', 'ConfigStore')
+
+    try:
+        logos_available = ConfigStore.objects.get(key='logos_available')
+    except ConfigStore.DoesNotExist:
+        return  # The key is not in the database, nothing to change here
+
+    default_value = config.config_variables['logos_available'].default_value
+    logos_available.value = default_value
+    logos_available.save()
+
+
+def move_old_logo_settings(apps, schema_editor):
+    """
+    moves the value of 'logo_pdf_header' to 'logo_pdf_header_L' and the same
+    for the footer. The old ones are deleted.
+    """
+    ConfigStore = apps.get_model('core', 'ConfigStore')
+
+    for place in ('header', 'footer'):
+        try:
+            logo_pdf = ConfigStore.objects.get(key='logo_pdf_{}'.format(place))
+        except ConfigStore.DoesNotExist:
+            continue  # The old entry is not in the database, nothing to change here
+
+        # The key of the new entry
+        new_value_key = 'logo_pdf_{}_L'.format(place)
+        try:
+            logo_pdf_L = ConfigStore.objects.get(key=new_value_key)
+        except ConfigStore.DoesNotExist:
+            logo_pdf_L = ConfigStore(key=new_value_key)
+
+        # Move the path to the new configentry
+        logo_pdf_L.value['path'] = logo_pdf.value.get('path', '')
+        # Save the new one, delete the old
+        logo_pdf_L.save()
+        logo_pdf.delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0007_auto_20180130_1400'),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            logos_available_default_to_database
+        ),
+        migrations.RunPython(
+            move_old_logo_settings
+        ),
+    ]