thinkphp 多表关联查询 设置多条件

$this->_link = array(
'NavigationUrl'=>array(
'mapping_type'=>HAS_MANY,
'class_name'  =>'NavigationUrl',
'foreign_key'=>'cateid',
'condition'=> "uid=$a",
),
'Navicate'=>array(
'mapping_type'=>HAS_MANY,
'class_name'  =>'NavigationUrl',
'foreign_key'=>'cateid',
'condition'=> "catetop=1",
),

);

其实 关联的都是一个表 但是确写了两个数组
目的是返回的数组中返回两个二维数组 分别为

["NavigationUrl"]
["Navicate"]

[1] => array(4) {
["id"] => string(1) "2"
["catename"] => string(6) "影视"
["NavigationUrl"] => array(4) {
[0] => array(9) {
["url_id"] => string(1) "9"
["webname"] => string(6) "优酷"
["url"] => string(20) "http://www.youku.com"
["cateid"] => string(1) "2"
["uid"] => string(2) "23"
["time"] => string(10) "1349596263"
["hots"] => string(1) "0"
["top"] => string(1) "0"
["catetop"] => string(1) "1"
}
[1] => array(9) {
["url_id"] => string(2) "10"
["webname"] => string(6) "酷六"
["url"] => string(18) "http://www.ku6.com"
["cateid"] => string(1) "2"
["uid"] => string(2) "23"
["time"] => string(10) "1349596281"
["hots"] => string(1) "0"
["top"] => string(1) "0"
["catetop"] => string(1) "0"
}
[2] => array(9) {
["url_id"] => string(2) "12"
["webname"] => string(7) "youtube"
["url"] => string(22) "http://www.youtube.com"
["cateid"] => string(1) "2"
["uid"] => string(2) "23"
["time"] => string(10) "1349596316"
["hots"] => string(1) "0"
["top"] => string(1) "1"
["catetop"] => string(1) "0"
}
[3] => array(9) {
["url_id"] => string(2) "16"
["webname"] => string(9) "爱奇异"
["url"] => string(16) "http://qqiyi.vom"
["cateid"] => string(1) "2"
["uid"] => string(2) "23"
["time"] => string(10) "1349667378"
["hots"] => string(1) "0"
["top"] => string(1) "0"
["catetop"] => string(1) "0"
}
}
["Navicate"] => array(1) {
[0] => array(9) {
["url_id"] => string(1) "9"
["webname"] => string(6) "优酷"
["url"] => string(20) "http://www.youku.com"
["cateid"] => string(1) "2"
["uid"] => string(2) "23"
["time"] => string(10) "1349596263"
["hots"] => string(1) "0"
["top"] => string(1) "0"
["catetop"] => string(1) "1"
}
}
}