Function wait_on_constraint

tests/flow/constraint_utils.py:59–70

(g, ct_type, entity_type, lbl, *props)

    return c

def wait_on_constraint(g, ct_type, entity_type, lbl, *props):
    props_filter = "properties = [" + ",".join(["'" + p + "'" for p in props]) + "]"

    q = f"""CALL db.constraints() YIELD type, label, status, properties
    WHERE type = '{ct_type}' AND label = '{lbl}' AND status = 'UNDER CONSTRUCTION'
    AND {props_filter} RETURN count(1)"""

    while True:
        result = g.query(q, read_only=True)
        if result.result_set[0][0] == 0:
            break
        time.sleep(0.5) # sleep 500ms

def create_constraint(g, ct_type, entity_type, lbl, *props, sync=False):
    args = ["GRAPH.CONSTRAINT", "CREATE", g.name, ct_type, entity_type, lbl, "PROPERTIES", len(props)]