使用模型Crud中的变量和具有Closure的高级用法

Question

echo $slot->id;
$slot->players = (Model_Players::find(function ($query)
{
    return $query->join('users')
        ->on('players.player', '=', 'users.id')
        ->where('players.slot', $slot->id);
})) ?: array();

返回：

4

ErrorException [ Notice ]: Undefined variable: slot  
APPPATH/classes/controller/booking.php @ line 98:  
98: ->where('players.slot', $slot->id);

如何将$slot对象发送到函数中？

Answer 1

您必须在查询中“使用”$ slot变量

echo $slot->id;
$slot->players = (Model_Players::find(function ($query) use ($slot)
{
    return $query->join('users')
        ->on('players.player', '=', 'users.id')
        ->where('players.slot', $slot->id);
})) ?: array();

Answer 2

需要使用use。

Model_Players::find(function ($query) use ($slot) 

干杯。