Add secondary check to prevent empty tags from being created

emgauwa-lib/src/db/tag.rs

@@ -17,6 +17,10 @@ impl DbTag {
 		conn: &mut PoolConnection<Sqlite>,
 		new_tag: &str,
 	) -> Result<DbTag, DatabaseError> {
+		if new_tag.len() == 0 {
+			return Err(DatabaseError::EmptyDataInsert);
+		}
+
 		sqlx::query_as!(
 			DbTag,
 			"INSERT INTO tags (tag) VALUES (?) RETURNING *",

emgauwa-lib/src/errors/database_error.rs

@@ -12,6 +12,7 @@ pub enum DatabaseError {
 	InsertGetError,
 	NotFound,
 	Protected,
+	EmptyDataInsert,
 	UpdateError,
 	UpdateGetError,
 	MigrationError(MigrateError),
@@ -57,6 +58,7 @@ impl From<&DatabaseError> for String {
 			}
 			DatabaseError::MigrationError(_) => "error on running migrations",
 			DatabaseError::Unknown(_) => "unknown error",
+			DatabaseError::EmptyDataInsert => "empty data was attempted to be inserted",
 		})
 	}
 }