Zend Search Lucene-搜索特定字段

Question

I currently have Zend_Search_Lucene set up as the search engine on the project I am working on.

It is working great at the default level (ie. searching all fields), however I have the need to now search a specific field.

The reason for this is because I am attempting to code in the capability of dealing with misspellings. I am therefore adding the soundex of each of the words in the document title.

For example:

$productArray['title'] = 'June Monthly Meat Box';  
$doc = new Zend_Search_Lucene_Document();  
$doc->addField(Zend_Search_Lucene_Field::text('product_title', $productArray['title']));  
$soundex = implode(' ',  array_map('soundex', array_map('trim', preg_split('/ /', $productArray['title'], NULL, PREG_SPLIT_NO_EMPTY))));  
$doc->addField(Zend_Search_Lucene_Field::keyword('soundex', $soundex));  
$index->addDocument($doc);

This adds 'J500 M534 M300 B200' as the soundex field.

This is how the search is performed:

$queryString = trim(urldecode($this->_request->getParam('q')));  
$words = array_map('trim', preg_split('/ /', $queryString, NULL, PREG_SPLIT_NO_EMPTY));    

$query = new Zend_Search_Lucene_Search_Query_Boolean();  
$subquery1 = new Zend_Search_Lucene_Search_Query_MultiTerm();  
foreach($words as $word) 
{  
    $subquery1->addTerm(new Zend_Search_Lucene_Index_Term($word));  
}  

$subquery2 = new Zend_Search_Lucene_Search_Query_MultiTerm();  
foreach($words as $word)
{  
        $subquery2->addTerm(new Zend_Search_Lucene_Index_Term(strtolower(soundex($word)), 'soundex'));  
}  
$query->addSubquery($subquery1);  
$query->addSubquery($subquery2);  

The variable $subquery1 stores each of the words of the original query (This works on it's own)
The variable $subquery2 stores the soundex of each word. The plan is to search the field for the soundex as well as the other fields for each word. Therefore if someone misspelt ' meat ' with ' maet ', it would return the result as the soundex would be the same at ' M300 '.

I am using Luke to view the dataset and am seeing the correct terms. When I use Luke to search for the soundex (ie. soundex:M300 ) it returns no results, however if I search the entire field (ie. soundex:"J500 M534 M300 B200" ) it returns the correct document.

What is going wrong to prevent it searching within the field?

Answer 1

If I understand Zend_Search_Lucene_Field::keyword correctly (what you used for "soundex" above), it is designed to store a single value at a time (like a single date or a single URL).

I think for the "soundex" field you want to instead use a tokenizing storage method like Zend_Search_Lucene_Field::text, as it sounds like you want to search on individual tokens in the "soundex" field, not just the whole field value.