我继承了一个使用drupal过滤系统来查找结果的应用程序。用户可以选择搜索“campus_location”'列,但是当它们输入多个变量时,它会在条件之间添加一个AND。
以下是drupal生成的查询的打印版本:
SELECT * FROM champs c INNER JOIN users u ON u.uid = c.uid LEFT OUTER JOIN champs_rsvp r
ON r.uid = c.uid LEFT OUTER JOIN champs_checklists cl
ON cl.id = c.checklist_id LEFT OUTER JOIN node en
ON en.uid = u.uid AND en.type = 'getting_started_event'
LEFT OUTER JOIN node sn ON sn.uid = u.uid
AND sn.type = 'success_story'
LEFT OUTER JOIN champs_action_steps cas
ON cas.uid = u.uid
WHERE ( (c.campus_location LIKE 'Flint' ESCAPE '\\') )
**AND**( (c.campus_location LIKE 'Ann Arbor' ESCAPE '\\') )
我需要最后一个AND成为OR,所以它看起来像这样:
SELECT * FROM champs c INNER JOIN users u ON u.uid = c.uid LEFT OUTER JOIN champs_rsvp r
ON r.uid = c.uid LEFT OUTER JOIN champs_checklists cl
ON cl.id = c.checklist_id LEFT OUTER JOIN node en
ON en.uid = u.uid AND en.type = 'getting_started_event'
LEFT OUTER JOIN node sn ON sn.uid = u.uid
AND sn.type = 'success_story'
LEFT OUTER JOIN champs_action_steps cas
ON cas.uid = u.uid
WHERE ( (c.campus_location LIKE 'Flint' ESCAPE '\\') )
OR( (c.campus_location LIKE 'Ann Arbor' ESCAPE '\\') )
产生正确的结果。
以下是我在搜索框中查看单词时继承的代码。我似乎无法弄清楚它在哪里添加变量将它放在AND。
$words = explode(",", $_SESSION['form_state']['values']['filter']);
foreach($words as $word)
{
$or = db_or();
foreach($cols as $col)
{
$table = 'c';
if(in_array($col, array('completed_date', 'score')))
$table = 'cl';
elseif(in_array($col, array('name', 'mail')))
$table = 'u';
elseif($col == 'date')
$table = 'r';
elseif(in_array($col, array('announce', 'num_success_stories', 'num_action_steps'))) //can't put these in WHERE clause. Need to go in HAVING.
continue;
echo $word;
$or = $or->condition($table . '.' . $col, champs_make_like_sql($word), 'LIKE');
}
$result = $query->condition($or);
}