add a command to fix item markers

diff --git a/telemeta/management/commands/telemeta-fix-item-markers.py b/telemeta/management/commands/telemeta-fix-item-markers.py
new file mode 100644 (file)
index 0000000..9bb67d0
--- /dev/null
+++ b/telemeta/management/commands/telemeta-fix-item-markers.py
@@ -0,0 +1,26 @@
+from optparse import make_option
+from django.conf import settings
+from django.core.management.base import BaseCommand, CommandError
+from django.core.files.base import ContentFile
+from telemeta.models import *
+from telemeta.util.unaccent import unaccent
+import os
+
+
+class Command(BaseCommand):
+    help = "apply a equal time shift to all markers of an item putting the first one to 0s"
+    args = "code"
+
+    def handle(self, *args, **options):
+        code = args[-2]
+
+        items = MediaItem.objects.filter(code__contains=code)
+        if items:
+            item = items[0]
+            markers = item.markers.all()
+            time_shift = markers[0].time
+            for marker in markers:
+                marker.time -= time_shift
+                marker.save()
+        else:
+            exit("No such item")