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# Adapted from: http://rediscookbook.org/implement_tags_and_search_them.html |
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import redis |
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pool = redis.ConnectionPool(host='localhost', port=6379, db=0) |
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red = redis.Redis(connection_pool=pool) |
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red.set('book:1', {'title': 'Diving into Python', 'author': 'Mark Pilgrim'}) |
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red.set('book:2', {'title': 'Programing Erlang', 'author': 'Joe Armstrong'}) |
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red.set('book:3', {'title': 'Programing in Haskell', 'author': 'Graham Hutton'}) |
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red.sadd('tag:python', 1) |
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red.sadd('tag:erlang', 2) |
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red.sadd('tag:haskell', 3) |
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red.sadd('tag:programming', 1) |
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red.sadd('tag:programming', 2) |
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red.sadd('tag:programming', 3) |
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red.sadd('tag:computing', 1) |
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red.sadd('tag:computing', 2) |
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red.sadd('tag:computing', 3) |
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red.sadd('tag:distributedcomputing', 2) |
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red.sadd('tag:FP', 2) |
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red.sadd('tag:FP', 3) |
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# a) SINTER 'tag:erlang' 'tag:haskell' |
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# 0 results |
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red.sinter('tag:erlang', 'tag:haskell') |
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# b) SINTER 'tag:programming' 'tag:computing' |
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# 3 results: 1, 2, 3 |
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red.sinter('tag:programming', 'tag:computing') |
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# c) SUNION 'tag:erlang' 'tag:haskell' |
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# 2 results: 2 and 3 |
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red.sunion('tag:erlang', 'tag:haskell') |
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# d) SDIFF 'tag:programming' 'tag:haskell' |
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# 2 results: 1 and 2 (haskell is excluded) |
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red.sdiff('tag:programming', 'tag:haskell') |
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red.smembers('tag:programming') |
