PHP Elasticsearch在字符串开头搜索

时间:2018-09-25 18:16:14

标签: php elasticsearch

我在MySql数据库中有一个产品表,我想搜索它们的产品名称和描述。

如果我在搜索中输入产品的全名,那么一切都很好,但不会将术语分解为几个部分。例如,它将找到“先锋”一词的产品,但找不到“ pio”或“ pionee”的任何东西。

我猜我是在错误地建立索引还是在错误地进行搜索?

我正在这样创建索引:

$params = [
        'index' => 'products',
        'type' => 'product',
        'body' => [
            'settings' => [
                'analysis' => [
                    'filter' => [
                        'ngram_filter' =>  [
                            "type" => "ngram",
                            "min_gram" => 1,
                            "max_gram" => 10
                        ]
                    ],
                    'analyzer' => [
                        'ngram_analyzer' => [
                            "type" => "custom",
                            "tokenizer" => "standard",
                            "filter" => [
                                "lowercase",
                                "asciifolding",
                                "ngram_filter"
                            ]
                        ]
                    ]
                ]
            ],
            'mappings' => [
                'products' => [
                    'name' => [
                        'type' => 'string',
                        'include_in_all' => true,
                        'analyzer' => 'ngram_analyzer',
                        'search_analyzer' => 'standard'
                    ],
                    'description' => [
                        'type' => 'string',
                        'include_in_all' => true,
                        'analyzer' => 'ngram_analyzer',
                        'search_analyzer' => 'standard'
                    ]
                ]
            ]
        ]
    ];

我正在像这样索引数据库结果:

 foreach($products as $product){

        $params = [
            'index' => 'products',
            'type' => 'product',
            'id' => $product['id'],
            'body' => [
                'name' => $product['name'],
                'description' => $product['description']
            ]
        ];

        $response = $client->index($params);
        var_dump($response);
    }

然后要搜索,我正在执行以下操作:

$params = [
    'index' => 'products',
    'type' => 'product',
    'body' => [
        'query' => [
            'match' => [
                'name' => $term
            ],
            'match' => [
                'description' => $term
            ]
        ]
    ]
];

$response = $client->search($params);


foreach($response['hits']['hits'] as $result){
    echo $result['_source']['name'] . '<br>';
}

print_r($response);

0 个答案:

没有答案
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