migrations: import choices to always get current ones

emissions/migrations/0015_auto_20200404_1510.py

@@ -4,6 +4,8 @@ from __future__ import unicode_literals
 
 from django.db import migrations, models
 
+from emissions.models import LICENSES, PODCAST_SOUND_QUALITY_LIST
+
 
 class Migration(migrations.Migration):
 
@@ -15,12 +17,12 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='emission',
             name='podcast_sound_quality',
-            field=models.CharField(choices=[('standard', 'Standard'), ('high', 'High')], default='standard', max_length=20, verbose_name='Podcast sound quality'),
+            field=models.CharField(choices=PODCAST_SOUND_QUALITY_LIST),
         ),
         migrations.AlterField(
             model_name='emission',
             name='default_license',
-            field=models.CharField(blank=True, choices=[('', 'Unspecified'), ('cc by', 'Creative Commons Attribution'), ('cc by-sa', 'Creative Commons Attribution ShareAlike'), ('cc by-nc', 'Creative Commons Attribution NonCommercial'), ('cc by-nd', 'Creative Commons Attribution NoDerivs'), ('cc by-nc-sa', 'Creative Commons Attribution NonCommercial ShareAlike'), ('cc by-nc-nd', 'Creative Commons Attribution NonCommercial NoDerivs'), ('cc0 / pd', 'Creative Commons Zero / Public Domain'), ('artlibre', 'Art Libre')], default='', max_length=20, verbose_name='Default license for podcasts'),
+            field=models.CharField(blank=True, choices=LICENSES, default='', max_length=20, verbose_name='Default license for podcasts'),
         ),
         migrations.AlterField(
             model_name='focus',
@@ -35,6 +37,6 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='soundfile',
             name='license',
-            field=models.CharField(blank=True, choices=[('', 'Unspecified'), ('cc by', 'Creative Commons Attribution'), ('cc by-sa', 'Creative Commons Attribution ShareAlike'), ('cc by-nc', 'Creative Commons Attribution NonCommercial'), ('cc by-nd', 'Creative Commons Attribution NoDerivs'), ('cc by-nc-sa', 'Creative Commons Attribution NonCommercial ShareAlike'), ('cc by-nc-nd', 'Creative Commons Attribution NonCommercial NoDerivs'), ('cc0 / pd', 'Creative Commons Zero / Public Domain'), ('artlibre', 'Art Libre')], default='', max_length=20, verbose_name='License'),
+            field=models.CharField(blank=True, choices=LICENSES, default='', max_length=20, verbose_name='License'),
         ),
     ]