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fix(events): use metadata flag instead of heuristic for dict content detection

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
rayhpeng
2026-04-04 08:56:13 +08:00
parent 17eb509dbd
commit 74dc663c23
2 changed files with 65 additions and 5 deletions
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backend/packages/harness/deerflow/runtime/events/store/db.py
+13 -5
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@@ -30,10 +30,10 @@ class DbRunEventStore(RunEventStore):
d["created_at"] = val.isoformat()
d.pop("id", None)
# Restore dict content that was JSON-serialized on write
content = d.get("content", "")
if isinstance(content, str) and content and content[0] in ("{", "["):
raw = d.get("content", "")
if isinstance(raw, str) and d.get("metadata", {}).get("content_is_dict"):
try:
d["content"] = json.loads(content)
d["content"] = json.loads(raw)
except (json.JSONDecodeError, ValueError):
pass
return d
@@ -48,7 +48,11 @@ class DbRunEventStore(RunEventStore):
async def put(self, *, thread_id, run_id, event_type, category, content="", metadata=None, created_at=None):
content, metadata = self._truncate_trace(category, content, metadata)
db_content = json.dumps(content, default=str, ensure_ascii=False) if isinstance(content, dict) else content
if isinstance(content, dict):
db_content = json.dumps(content, default=str, ensure_ascii=False)
metadata = {**(metadata or {}), "content_is_dict": True}
else:
db_content = content
async with self._sf() as session:
max_seq = await session.scalar(select(func.max(RunEventRow.seq)).where(RunEventRow.thread_id == thread_id))
seq = (max_seq or 0) + 1
@@ -82,7 +86,11 @@ class DbRunEventStore(RunEventStore):
category = e.get("category", "trace")
metadata = e.get("metadata")
content, metadata = self._truncate_trace(category, content, metadata)
db_content = json.dumps(content, default=str, ensure_ascii=False) if isinstance(content, dict) else content
if isinstance(content, dict):
db_content = json.dumps(content, default=str, ensure_ascii=False)
metadata = {**(metadata or {}), "content_is_dict": True}
else:
db_content = content
row = RunEventRow(
thread_id=e["thread_id"],
run_id=e["run_id"],