pub fn find_relationship(
conn: &Connection,
source_id: i64,
target_id: i64,
relation: &str,
) -> Result<Option<RelationshipRow>, AppError>Expand description
Busca uma relação específica por (source_id, target_id, relation).
pub fn find_relationship(
conn: &Connection,
source_id: i64,
target_id: i64,
relation: &str,
) -> Result<Option<RelationshipRow>, AppError>Busca uma relação específica por (source_id, target_id, relation).