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fix: error when adding child to node with no children #447

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merged 1 commit into from
Mar 14, 2024
Merged

fix: error when adding child to node with no children #447

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6 changes: 3 additions & 3 deletions backend/editor/entries.py
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Original file line number Diff line number Diff line change
Expand Up @@ -605,12 +605,12 @@ async def update_node_children(self, entry, new_children_ids):
for child_id in children_ids:
# Create new relationships if it doesn't exist
query = f"""
MATCH ()-[r:is_child_of]->(parent:{self.project_name}:ENTRY),
(new_child:{self.project_name}:ENTRY)
MATCH (parent:{self.project_name}:ENTRY), (new_child:{self.project_name}:ENTRY)
WHERE parent.id = $id AND new_child.id = $child_id
OPTIONAL MATCH ()-[r:is_child_of]->(parent)
WITH parent, new_child, COUNT(r) AS rel_count
MERGE (new_child)-[r:is_child_of]->(parent)
ON CREATE SET r.position = rel_count
ON CREATE SET r.position = CASE WHEN rel_count IS NULL THEN 1 ELSE rel_count + 1 END
"""
_result = await get_current_transaction().run(
query, {"id": entry, "child_id": child_id}
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