outposts: replace migration with string backup handler

2020-10-19 16:04:38 +02:00
parent 597188c7ee
commit 7203bd37a3
2 changed files with 5 additions and 32 deletions
--- a/passbook/outposts/models.py
+++ b/passbook/outposts/models.py
@ -204,7 +204,11 @@ class OutpostState:
    def for_channel(outpost: Outpost, channel: str) -> "OutpostState":
        """Get state for a single channel"""
        key = f"{outpost.state_cache_prefix}_{channel}"
-        data = cache.get(key, {"uid": channel})
+        default_data = {"uid": channel}
+        data = cache.get(key, default_data)
+        if isinstance(data, str):
+            cache.delete(key)
+            data = default_data
        state = from_dict(OutpostState, data)
        state.uid = channel
        # pylint: disable=protected-access