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How to delete and remove objects

You can use the methods delete() and remove() to construct queries that will remove nodes and relationships or remove properties and labels.

  • delete(variable_expressions: Union[str, List[str]], detach: Optional[bool] = False) - Remove nodes and relationships. Set the argument detach to true in order to delete nodes with their relationships.
  • remove(items: Union[str, List[str]]) - Remove properties and labels.

Delete nodes​

To delete a node from the database, use the delete() method:

from gqlalchemy import Match

query = Match()
        .node(labels="Person", variable="p")
        .delete(variable_expressions="p")
        .execute()

Delete relationships​

To delete a relationship from the database, use the delete() method:

from gqlalchemy import match

query = Match()
        .node(labels="Person")
        .to(relationship_type="FRIENDS_WITH", variable="f")
        .node(labels="Person")
        .delete(variable_expressions="f")
        .execute()

Remove properties​

To remove a property (or properties) from the database, use the remove() method:

from gqlalchemy import Match

query = Match()
        .node(labels="Person", variable="p")
        .remove(items=["p.name", "p.last_name"])