task management and task runtime flow

app/sync/migrations/0014_source_has_errors.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.4 on 2020-12-07 07:31
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sync', '0013_auto_20201207_0439'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='source',
+            name='has_errors',
+            field=models.BooleanField(default=False, help_text='Source has errors', verbose_name='has errors'),
+        ),
+    ]

app/sync/migrations/0015_auto_20201207_0744.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.1.4 on 2020-12-07 07:44
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sync', '0014_source_has_errors'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='source',
+            name='has_errors',
+        ),
+        migrations.AddField(
+            model_name='source',
+            name='has_failed',
+            field=models.BooleanField(default=False, help_text='Source has failed to index media', verbose_name='has failed'),
+        ),
+    ]