Laravel Eloquent ORM 一种高级用法

        一、需求：

在数据搜索时最常见的就是调用同一个方法查询，而查询的字段却可能是其中一个或其中的几个字段一起组合查询，例如：对列表的搜索，基本上都是几个字段随意组合搜索。那么在model里就需要判断有那个字段组合，怎么组合。

       网上找了很久，Laravel群里也问了几个，都说没有写过，于是自己写个吧。话不多说，见代码：

        

function findByParam($param = array())
  {
    $select = new Customer();
    if (isset($param['name']) && '' != $param['name'])
    {
      $select = $select->where('customer.name', '=', $param['name']);
    }
    if (isset($param['phone']) && '' != $param['phone'])
    {
      $select = $select->where('customer.phone', '=', $param['phone']);
    }
    if (isset($param['email']) && '' != $param['email'])
    {
      $select = $select->where('customer.email', '=', $param['email']);
    }
    if (isset($param['tel']) && '' != $param['tel'])
    {
      $select = $select->where('customer.tel', '=', $param['tel']);
    }
    if (isset($param['qq']) && '' != $param['qq'])
    {
      $select = $select->where('customer.qq', '=', $param['qq']);
    }
    if (isset($param['IDCard']) && '' != $param['IDCard'])
    {
      $select = $select->where('customer.IDCard', '=', $param['IDCard']);
    }
    
    $customers = $select->leftJoin("member", function ($join)
    {
      $join->on("customer.memberID", "=", "member.id");
    })
      ->get(array(
      'customer.id',
      'customer.name',
      'customer.sex',
      'customer.tel',
      'customer.phone',
      'customer.address',
      'customer.email',
      'customer.qq',
      'customer.headPic',
      'customer.birthday',
      'customer.IDCard',
      'customer.enable',
      'customer.memberID',
      'customer.IDCard',
      'customer.info',
      'member.name as mname',
      'member.discount'
    ));
    return json_encode($customers);

        调用的时候，controller里只需要接收这些字段，无论它是否有值，直接加入到$param数组中查询就OK，例如：

      

function anyFindbyparam()
  {
    $name = Input::get('name');
    $tel = Input::get('tel');
    $phone = Input::get('phone');
    $email = Input::get('email');
    $qq = Input::get('qq');
    $IDCard = Input::get('IDCard');
    $customer = new Customer();
    $customers = $customer->findByParam(array(
      'name' => $name,
      'tel' => $tel,
      'phone' => $phone,
      'email' => $email,
      'qq' => $qq,
      'IDCard' => $IDCard
    ));
    return $customers;
  }

    尊重原创，转载请注明出处：http://blog.csdn.net/a437629292/article/details/44038411