v2 refactor to label-based koans, and add discord

koans/data.py

@@ -1,32 +1,31 @@
-from data import Registry, RowModel
-from data.columns import String, Timestamp, Integer
+from data import Registry, RowModel, Table
+from data.columns import Bool, Integer, Timestamp, String
 
+from weakref import WeakValueDictionary
 
 class Koan(RowModel):
-    """
-    Schema
-    ======
-    CREATE TABLE koans(
-      koanid INTEGER GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-      communityid INTEGER NOT NULL REFERENCES communities ON UPDATE CASCADE ON DELETE CASCADE,
-      name TEXT NOT NULL,
-      message TEXT NOT NULL,
-      created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-      _timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW()
-    );
-    """
     _tablename_ = 'koans'
-    _cache_ = {}
+    _cache_ = WeakValueDictionary()
 
     koanid = Integer(primary=True)
     communityid = Integer()
-    name = String()
-    message = String()
+    content = String()
+    deleted_at = Timestamp()
+    created_by = Integer()
     created_at = Timestamp()
     _timestamp = Timestamp()
 
 
-class KoanData(Registry):
-    VERSION = ('KOANS', 1)
+class KoanInfo(Koan):
+    _tablename_ = 'koans_info'
+    _readonly_ = True
+    _cache_ = WeakValueDictionary()
+    
+    koanlabel = Integer()
+    is_deleted = Bool()
 
+
+class KoansData(Registry):
+    VERSION = ('KOANS', 2)
     koans = Koan.table
+    koans_info = KoanInfo.table