GraphLite database session Provides user context for executing queries.
| 80 | |
| 81 | |
| 82 | class Session: |
| 83 | """ |
| 84 | GraphLite database session |
| 85 | |
| 86 | Provides user context for executing queries. |
| 87 | """ |
| 88 | |
| 89 | def __init__(self, session_id: str, db: _GraphLiteBinding, username: str): |
| 90 | """Internal constructor - use db.session() instead""" |
| 91 | self._session_id = session_id |
| 92 | self._db = db |
| 93 | self._username = username |
| 94 | |
| 95 | def id(self) -> str: |
| 96 | """Get the session ID""" |
| 97 | return self._session_id |
| 98 | |
| 99 | def username(self) -> str: |
| 100 | """Get the username for this session""" |
| 101 | return self._username |
| 102 | |
| 103 | def query(self, query: str) -> QueryResult: |
| 104 | """ |
| 105 | Execute a GQL query |
| 106 | |
| 107 | Args: |
| 108 | query: GQL query string |
| 109 | |
| 110 | Returns: |
| 111 | QueryResult with rows and metadata |
| 112 | |
| 113 | Raises: |
| 114 | QueryError: If query execution fails |
| 115 | """ |
| 116 | try: |
| 117 | return self._db.query(self._session_id, query) |
| 118 | except Exception as e: |
| 119 | raise QueryError(f"Query failed: {e}") |
| 120 | |
| 121 | def execute(self, statement: str): |
| 122 | """ |
| 123 | Execute a statement without returning results |
| 124 | |
| 125 | Args: |
| 126 | statement: GQL statement to execute |
| 127 | |
| 128 | Raises: |
| 129 | QueryError: If execution fails |
| 130 | """ |
| 131 | try: |
| 132 | self._db.execute(self._session_id, statement) |
| 133 | except Exception as e: |
| 134 | raise QueryError(f"Execute failed: {e}") |
| 135 | |
| 136 | def transaction(self): |
| 137 | """ |
| 138 | Begin a new transaction |
| 139 |