成员组的Modx revo检查返回一个数组，如何将其转换为用于查询的字符串？

Question

I'm developing a custom component in modx, the client has asked that it be searched by resource group id. I've got snippet pulling in the resource group ID, by using the following code:

// Check if user is logged in and get user group 
$user = (!empty($userId)) ? $modx->getObject('modUser', $userId) : $modx->user;

if (is_object($user)) {
    /*
    * modUser Groups
    */
    $group = print_r($user->getUserGroups(), true);
    $modx->toPlaceHolder('user.groups', $group);

} 

However $group returns as an array, so I can't use it in the query:

Array ( [0] => 8 )

I've tried calling it like this: return $group[0];

But that just dumps the first letter 'A'

Basically I just want to place the value in the Array into a variable and then use it in my search query:

$query->where(array('accNumber:LIKE' => "%$accNo%"));
$query->andCondition(array('accName:LIKE' => "%$accName%"));
$query->andCondition(array('saleProperty:LIKE' => "%$saleProperty%"));
$query->andCondition(array('clientNumber' => "$group")); 

Am I right in thinking that I'll need to convert the contents of the array into a string before I can use them? Sorry if the question is noobish, but I'm a noob!

Answer 1

As suggested already, remove the print_r() so $groups will contain an array.

$group = $user->getUserGroups();

Then adjust your final andCondition() as follows ( :IN is expecting an array):

$query->where(array('accNumber:LIKE' => "%$accNo%"));
$query->andCondition(array('accName:LIKE' => "%$accName%"));
$query->andCondition(array('saleProperty:LIKE' => "%$saleProperty%"));
$query->andCondition(array('clientNumber:IN' => $group));

http://rtfm.modx.com/display/xPDO20/xPDOQuery.where

Answer 2

只是删除print_r - > $group = $user->getUserGroups()然后再次尝试return $group[0];

Answer 3

是的-您将不得不对其进行转换，但是它会返回一个数组，因为任何给定的用户都可以属于多个组，因此如果您的客户决定更改其管理用户的方式，则可能需要为该组预先计划。