我想将一个行对象传递给一个函数,该函数使用存储在行中的配置信息来构建Zend Search Lucene文档并将其添加到我的索引中。
存储的信息如下所示:
protected $_index = array(
'url' => array('UnIndexed', 'getUrl()'),
'fragment' => array('UnIndexed', 'getFragment()'),
'edited' => array('UnIndexed', 'edited'),
'title' => array('Text', 'getTitle()'),
'summary' => array('Text', 'getSummary()'),
'text' => array('UnStored', 'getText()'),
);
这是我打电话的功能:
public static function addDoc(My_Db_Table_Row_Abstract $row)
{
$config = $row->getIndexConfig();
if (empty($config)) {
return;
}
// setup the document
$document = new Zend_Search_Lucene_Document();
$document->addField(Zend_Search_Lucene_Field::keyword('table_name', $row->getTable()->info('name')))
->addField(Zend_Search_Lucene_Field::keyword('table_row_key', $row->getIndexRowKey()));
// add the configured fields
foreach ($config as $name => $opts) {
$type = $opts[0];
$value = eval('return $row->' . $opts[1]);
switch ($type) {
case 'Keyword' :
$field = Zend_Search_Lucene_Field::keyword($name, $value);
break;
case 'UnIndexed' :
$field = Zend_Search_Lucene_Field::unIndexed($name, $value);
break;
case 'Binary' :
$field = Zend_Search_Lucene_Field::binary($name, $value);
break;
case 'Text' :
$field = Zend_Search_Lucene_Field::text($name, $value);
break;
case 'UnStored ' :
$field = Zend_Search_Lucene_Field::unStored($name, $value);
break;
}
$document->addField($field);
}
// add to the index
self::getIndex()->addDocument($document);
}
如您所见,我需要通过函数调用将信息输入到文档字段中。我担心使用eval()
,但我不知道另一种方式。有没有更好的方法来实现相同的功能?
解
我更改了配置数据以使用所有字段的功能(删除括号),并更低了type
的第一个字母,因此我也可以将其用于call_user_func
:< / p>
protected $_index = array(
'url' => array('unIndexed', 'getUrl'),
'fragment' => array('unIndexed', 'getFragment'),
'edited' => array('unIndexed', 'getEdited'),
'active_self' => array('keyword', 'isActive'),
'active_block' => array('keyword', 'isActiveBlock'),
'active_page' => array('keyword', 'isActiveNav'),
'members_only' => array('keyword', 'isMembersOnly'),
'title' => array('text', 'getTitle'),
'summary' => array('text', 'getSummary'),
'text' => array('unStored', 'getText'),
);
函数调用最终变得更简单了:
public static function addDoc(My_Db_Table_Row_Abstract $row)
{
$config = $row->getIndexConfig();
if (empty($config)) {
return;
}
// setup the document
$document = new Zend_Search_Lucene_Document();
$document->addField(Zend_Search_Lucene_Field::keyword('table_name', $row->getTable()->info('name')))
->addField(Zend_Search_Lucene_Field::keyword('table_row_key', $row->getIndexRowKey()));
// add the configured fields
foreach ($config as $name => $opts) {
$value = call_user_func(array($row, $opts[1]));
$field = call_user_func(array('Zend_Search_Lucene_Field', $opts[0]), $name, $value);
$document->addField($field);
}
// add to the index
self::getIndex()->addDocument($document);
}
答案 0 :(得分:2)
您也可以使用call_user_func
。这是PHP doc。
示例:
<?php
function barber($type)
{
echo "You wanted a $type haircut, no problem\n";
}
call_user_func('barber', "mushroom");
call_user_func('barber', "shave");
?>
输出:
You wanted a mushroom haircut, no problem
You wanted a shave haircut, no problem
例如,您需要更改:
$value = eval('return $row->' . $opts[1]);
通过
$value = call_user_func($row->' . $opts[1]);
答案 1 :(得分:2)
我想你可以做到:
// ...
$type = $opts[0];
$method = $opts[1];
$value = $row->$method;
或者:
// ...
$type = $opts[0];
call_user_func(array($row, $opts[1]));
答案 2 :(得分:2)
从方法名称中删除parens:
protected $_index = array(
'url' => array('UnIndexed', 'getUrl'),
'fragment' => array('UnIndexed', 'getFragment'),
...
替换此属性:
'edited' => array('UnIndexed', 'edited'),
使用等效的getter方法:
'edited' => array('UnIndexed', 'getEdited'),
然后就这样做:
$method = $opts[1];
$value = $row->$method();