namespace Model;

use HY\Model;

class FriendModel extends Model {

//获取两者关系

public function get_state($uid1,$uid2){

$state = $this->find('*',array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)));

return empty($state) ? false : $state['state'];

}

public function set_state($uid1,$uid2,$s){

return $this->update(array('state'=>$s),array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)));

}

//添加关注关系

public function add_friend($uid1,$uid2){

if(!$this->has(array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)))){ //$uid1 未关注 $uid2

if($this->has(array('AND'=>array('uid1'=>$uid2,'uid2'=>$uid1)))){ // $uid2 关注了 $uid1

if($this->get_state($uid2,$uid1)!= 0){

$this->set_state($uid2,$uid1,2);

return $this->insert(array('uid1'=>$uid1,'uid2'=>$uid2,'state'=>2));

}

return $this->insert(array('uid1'=>$uid1,'uid2'=>$uid2,'state'=>1));

}else{

return $this->insert(array('uid1'=>$uid1,'uid2'=>$uid2,'state'=>1));

}

}else{

$this->set_state($uid1,$uid2,1);

}

//已存在朋友关系

return false;

}

//删除朋友关系

public function rm_friend($uid1,$uid2){

if($this->has(array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)))){ //$uid1 关注 $uid2

if($this->has(array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)))){ // $uid2 关注了 $uid1

if($this->get_state($uid2,$uid1)!= 0)

$this->set_state($uid2,$uid1,1);

}

$this->delete(array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)));

}

}

public function update_int($uid1,$uid2,$type="+",$size=1){

if($this->has(array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)))){

if($type==="+")

return $this->update(array("c[{$type}]"=>$size,'atime'=>NOW_TIME),array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)));

return $this->update(array("c[{$type}]"=>$size),array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)));

}

$this->insert(array('uid1'=>$uid1,'uid2'=>$uid2,'c'=>1,'atime'=>NOW_TIME,'state'=>0));

//陌生人=1

}

public function get_c($uid1,$uid2){

if(!$this->has(array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2))))

return 0;

return $this->find('c',array('AND'=>array('uid1'=>$uid1,'uid2'=>$uid2)));

}

}

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