Removes a Query Field (qf parameter)

# SolrDisMaxQuery::removeQueryField

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SolrDisMaxQuery::removeQueryField — Removes a Query Field (qf parameter)

### 説明

public SolrDisMaxQuery::removeQueryField ( string `$field` ) : SolrDisMaxQuery

Removes a Query Field (qf parameter) from the field list added by SolrDisMaxQuery::addQueryField()

qf: When building DisjunctionMaxQueries from the user's query it specifies the fields to search in, and boosts for those fields.

### パラメータ

`field`

  Field Name

### 返り値

SolrDisMaxQuery

### 例

例1 SolrDisMaxQuery::removeQueryField() example

`<?php
$dismaxQuery = new SolrDisMaxQuery('lucene');
$dismaxQuery
->addQueryField('first', 3)
->addQueryField('second', 0.2)
->addQueryField('cat');
echo $dismaxQuery . PHP_EOL;
// remove field 'second'
echo $dismaxQuery->removeQueryField('second');
?>`

上の例の出力は、 たとえば以下のようになります。

    q=lucene&defType=edismax&qf=first^3 second^0.2 cat
    q=lucene&defType=edismax&qf=first^3 cat

### 参考

- SolrDisMaxQuery::addQueryField() - Add a query field with optional boost (qf parameter)