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only migrate AnnotationSequence if we have items

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j 2015-11-11 09:48:16 +01:00
parent 9be454dfba
commit 9b1ed58ff2
1 changed files with 15 additions and 15 deletions
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30
pandora/item/migrations/0006_add_annotation_sequence.py
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@ -21,23 +21,23 @@ class Migration(SchemaMigration):
for i in item.models.Item.objects.all(): for i in item.models.Item.objects.all():
item.models.AnnotationSequence.reset(i) item.models.AnnotationSequence.reset(i)
for a in item.models.Annotation.objects.filter(public_id=None): a.save() for a in item.models.Annotation.objects.filter(public_id=None): a.save()
Annotation = orm['annotation.Annotation'] Annotation = orm['annotation.Annotation']
AnnotationSequence = item.models.AnnotationSequence AnnotationSequence = item.models.AnnotationSequence
for annotation in Annotation.objects.filter(public_id=None).order_by('item'): for annotation in Annotation.objects.filter(public_id=None).order_by('item'):
item = annotation.item item = annotation.item
s, created = AnnotationSequence.objects.get_or_create(item=item) s, created = AnnotationSequence.objects.get_or_create(item=item)
if created: if created:
nextid = s.value nextid = s.value
else: else:
cursor = connection.cursor() cursor = connection.cursor()
sql = "UPDATE %s SET value = value + 1 WHERE item_id = %s RETURNING value" % ( sql = "UPDATE %s SET value = value + 1 WHERE item_id = %s RETURNING value" % (
AnnotationSequence._meta.db_table, item.id) AnnotationSequence._meta.db_table, item.id)
cursor.execute(sql) cursor.execute(sql)
nextid = cursor.fetchone()[0] nextid = cursor.fetchone()[0]
annotation.public_id = "%s/%s" % (item.public_id, ox.toAZ(nextid)) annotation.public_id = "%s/%s" % (item.public_id, ox.toAZ(nextid))
annotation.save() annotation.save()
def backwards(self, orm): def backwards(self, orm):
# Deleting model 'AnnotationSequence' # Deleting model 'AnnotationSequence'