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db:redis
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| Ambos lados, revisión anterior Revisión previa Próxima revisión | Revisión previa | ||
|
db:redis [2014/07/31 18:01] alfred [Publish\Subscribe] |
db:redis [2020/05/09 09:25] (actual) |
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|---|---|---|---|
| Línea 7: | Línea 7: | ||
| $ cd <created folder> | $ cd <created folder> | ||
| $ make | $ make | ||
| + | $ make install | ||
| </code> | </code> | ||
| ==== Execute ==== | ==== Execute ==== | ||
| Línea 62: | Línea 63: | ||
| * ''delete'' to delete an instance. | * ''delete'' to delete an instance. | ||
| + | ==== DataTypes ==== | ||
| + | |||
| + | === Strings === | ||
| + | <code python> | ||
| + | >>> r.set('nombre', 'Jhon') | ||
| + | True | ||
| + | >>> r.set('apellido', 'Doe') | ||
| + | True | ||
| + | >>> r.set('nombre:codigo', '123ASDF') | ||
| + | True | ||
| + | >>> r.get('nombre') | ||
| + | 'Jhon' | ||
| + | >>> r.get('nombre') | ||
| + | 'Doe' | ||
| + | >>> r.get('nombre:codigo') | ||
| + | 123ASDF | ||
| + | </code> | ||
| + | |||
| + | === Lists === | ||
| + | <code python> | ||
| + | >>> r.rpush('list', '1') | ||
| + | 1L | ||
| + | >>> r.rpush('list', '2') | ||
| + | 2L | ||
| + | >>> r.lrange('list', '0', '2') | ||
| + | ['1', '2'] | ||
| + | </code> | ||
| + | |||
| + | === Sets === | ||
| + | <code python> | ||
| + | >>> r.sadd('conjunto', '1') | ||
| + | 1 | ||
| + | >>> r.sadd('conjunto', '2') | ||
| + | 1 | ||
| + | >>> r.smembers('conjunto') | ||
| + | set(['1', '2', '23']) | ||
| + | </code> | ||
| + | |||
| + | === Hashes === | ||
| + | <code python> | ||
| + | >>> r.hset('mihash', 'field1', 'hola') | ||
| + | 1L | ||
| + | >>> r.hset('mihash', 'field2', 'mundo') | ||
| + | 1L | ||
| + | >>> r.hget('mihash', 'field1') | ||
| + | 'hola' | ||
| + | >>> r.hgetall('mihash') | ||
| + | {'field2': 'mundo', 'field1': 'hola'} | ||
| + | </code> | ||
| ==== Connections ==== | ==== Connections ==== | ||
| Connecting/disconnecting for each operation is too expensive, so it is much better to maintain the connection opened. With redis-py it can be done by declaring a pool of connections (''ConnectionPool'' class). redis-py uses a connection pool to manage connections to a Redis server. By default, each Redis instance you create will in turn create its own connection pool. You can choose a concrete connection pool in the next way: | Connecting/disconnecting for each operation is too expensive, so it is much better to maintain the connection opened. With redis-py it can be done by declaring a pool of connections (''ConnectionPool'' class). redis-py uses a connection pool to manage connections to a Redis server. By default, each Redis instance you create will in turn create its own connection pool. You can choose a concrete connection pool in the next way: | ||
| Línea 132: | Línea 182: | ||
| >>> p.subscribe(**{'my-channel': my_handler}) | >>> p.subscribe(**{'my-channel': my_handler}) | ||
| </code> | </code> | ||
| - | If your application is not interested in the (sometimes noisy) subscribe/unsubscribe confirmation messages, you can ignore them by passing ignore_subscribe_messages=True to r.pubsub(). | + | If your application is not interested in the (sometimes noisy) subscribe/unsubscribe confirmation messages, you can ignore them by passing ''ignore_subscribe_messages=True'' to r.pubsub(). |
| ==== Notes ==== | ==== Notes ==== | ||
| * redis-py can be used together with ''Redis Sentinel'' to discover Redis nodes. | * redis-py can be used together with ''Redis Sentinel'' to discover Redis nodes. | ||
| ===== Notes ===== | ===== Notes ===== | ||
| + | * A good GUI: [[http://redisdesktop.com/]] | ||
db/redis.1406829710.txt.gz · Última modificación: 2020/05/09 09:24 (editor externo)
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