Molodetz blogrol volgens DPP-template

molodetz/database/services_state.py

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+# retoor <retoor@molodetz.nl>
+import json
+
+from molodetz.database.core import db, now_iso
+
+
+def get_service_state(name):
+    if "service_state" not in db.tables:
+        return None
+    return db["service_state"].find_one(name=name)
+
+
+def ensure_service_state(name):
+    row = get_service_state(name)
+    if row:
+        return row["id"]
+    return db["service_state"].insert(
+        {
+            "name": name,
+            "status": "stopped",
+            "last_run": None,
+            "next_run": None,
+            "started_at": None,
+            "heartbeat": None,
+            "logs": "[]",
+            "metrics": "{}",
+            "updated_at": now_iso(),
+        }
+    )
+
+
+def write_service_state(row_id, **fields):
+    for key in ("logs", "metrics"):
+        if key in fields and not isinstance(fields[key], str):
+            fields[key] = json.dumps(fields[key])
+    fields["id"] = row_id
+    fields["updated_at"] = now_iso()
+    db["service_state"].update(fields, ["id"])