在 codeigniter 中映射数据

Question

我有一个数据存储在数组中 $roles = [2,4];我想将我在 $roles 中的数据与数据库中的数据进行映射。如果我像上面那样在 $roles 中有多个数据，我不知道如何映射数据，而且我不知道如何在表视图中显示所有数据。我试试这个 if (count($roles) == 1) {  if ($roles[0] == 2) {    $data['need_app'] = $this->Hire_model->need_approval_req($OrganizationID, $requestor_id);  }else if ($roles[0] == 3) {    $data['need_app'] = $this->Hire_model->need_approval_recruiter();  }else if ($roles[0] == 4) {    $data['need_app']=$this->Hire_model->need_approval_hr();  }else if ($roles[0] == 5) {    $data['need_app'] = $this->Hire_model->need_approval_cc($PositionID, $OrganizationID, $requestor_id);  }}else{   for ($i=0; $i < count($roles)-1 ; $i++) {     if ($roles[0] == 2) {      $data['need_app'] = $this->Hire_model->need_approval_req($OrganizationID, $requestor_id);      var_dump(count($data['need_app']));    }else if ($roles[0] == 3) {      $data['need_app'] = $this->Hire_model->need_approval_recruiter();    }else if ($roles[0] == 4) {      $data['need_app']=$this->Hire_model->need_approval_hr();    }else if ($roles[0] == 5) {      $data['need_app'] = $this->Hire_model->need_approval_cc($PositionID, $OrganizationID, $requestor_id);      var_dump(count($data['need_app']));    }    // var_dump(count($data['need_app']));  }}希望有人能帮助我

Answer 1

我写了一段代码可以帮助你解决这个问题，必要时会提到注释。希望对你有帮助。

foreach ($roles as $role) { 

    if ($role == 2) {

      $data['need_app'][] = $this->Hire_model->need_approval_req($OrganizationID, $requestor_id); // you need to make an array here otherwise the current value will over-write the previous one

      var_dump(count($data['need_app']));

    }else if ($role == 3) {

      $data['need_app'][] = $this->Hire_model->need_approval_recruiter(); // you need to make an array here otherwise the current value will over-write the previous one

    }else if ($role == 4) {

      $data['need_app'][] =$this->Hire_model->need_approval_hr(); // ...

    }else if ($role == 5) {

      $data['need_app'][] = $this->Hire_model->need_approval_cc($PositionID, $OrganizationID, $requestor_id); // ...

    }

    // var_dump($data['need_app']);

}

Answer 2

 foreach ($roles as $role) {

            if ($role == 2) {

                //your logic here

            } else if ($role == 4) {

                //your logic here

            } else if ($role == WHAT_EVER_YOU_WANTS) {

                //Logic

            }

            //your logic here

        }

所以根据你的问题

foreach ($roles as $role) {

            if ($role == 2) {

                $data['need_app'] = $this->Hire_model->need_approval_req($OrganizationID, $requestor_id);

            } else if ($role == 3) {

                $data['need_app'] = $this->Hire_model->need_approval_recruiter();

            } else if ($role == 4) {

                $data['need_app'] = $this->Hire_model->need_approval_hr();

            } else if ($role == 5) {

                $data['need_app'] = $this->Hire_model->need_approval_cc($PositionID, $OrganizationID, $requestor_id);

            }

        }

而不是使用类似$role == 4

在函数内创建一个常量或另一个变量，并使用该变量值循环条件。这对以后的修改很有帮助。

像这样的东西

$loopValues = [1,2,3,4,5,6] // Or    $loopValues = [['val' => 1, 'function' => functionName()]] <- I prefer this one all the time

然后像下面这样循环

 foreach ($roles as $role) {

            if ($role == $loopValues[0]) {

                //your logic here

}

}