feat: store model configs in the database

backend/apps/web/internal/migrations/008_add_models.py

@@ -1,4 +1,4 @@
-"""Peewee migrations -- 002_add_local_sharing.py.
+"""Peewee migrations -- 008_add_models.py.
 
 Some examples (model - class or model name)::
 
@@ -37,43 +37,24 @@ with suppress(ImportError):
 def migrate(migrator: Migrator, database: pw.Database, *, fake=False):
     """Write your migrations here."""
 
-    # Adding fields created_at and updated_at to the 'user' table
-    migrator.add_fields(
-        "user",
-        created_at=pw.BigIntegerField(null=True),  # Allow null for transition
-        updated_at=pw.BigIntegerField(null=True),  # Allow null for transition
-        last_active_at=pw.BigIntegerField(null=True),  # Allow null for transition
-    )
+    @migrator.create_model
+    class Model(pw.Model):
+        id = pw.TextField()
+        source = pw.TextField()
+        base_model = pw.TextField(null=True)
+        name = pw.TextField()
+        params = pw.TextField()
 
-    # Populate the new fields from an existing 'timestamp' field
-    migrator.sql(
-        'UPDATE "user" SET created_at = timestamp, updated_at = timestamp, last_active_at = timestamp WHERE timestamp IS NOT NULL'
-    )
+        class Meta:
+            table_name = "model"
 
-    # Now that the data has been copied, remove the original 'timestamp' field
-    migrator.remove_fields("user", "timestamp")
-
-    # Update the fields to be not null now that they are populated
-    migrator.change_fields(
-        "user",
-        created_at=pw.BigIntegerField(null=False),
-        updated_at=pw.BigIntegerField(null=False),
-        last_active_at=pw.BigIntegerField(null=False),
-    )
+            indexes = (
+                # Create a unique index on the id, source columns
+                (("id", "source"), True),
+            )
 
 
 def rollback(migrator: Migrator, database: pw.Database, *, fake=False):
     """Write your rollback migrations here."""
 
-    # Recreate the timestamp field initially allowing null values for safe transition
-    migrator.add_fields("user", timestamp=pw.BigIntegerField(null=True))
-
-    # Copy the earliest created_at date back into the new timestamp field
-    # This assumes created_at was originally a copy of timestamp
-    migrator.sql('UPDATE "user" SET timestamp = created_at')
-
-    # Remove the created_at and updated_at fields
-    migrator.remove_fields("user", "created_at", "updated_at", "last_active_at")
-
-    # Finally, alter the timestamp field to not allow nulls if that was the original setting
-    migrator.change_fields("user", timestamp=pw.BigIntegerField(null=False))
+    migrator.remove_model("model")