无法访问 codeigniter 中的空属性

Question

我无法从它在数据库中插入空值的表单中获取帖子值

用户控制器

public function edit($id = NULL) {
    if ($id) {
        $this->data ['user'] = $this->user_login_model->get($id);
        count ( $this->data ['user'] ) or $this->data ['errors'] [] = "user could not be found";
    } else {
        $this->data ['user'] = $this->user_login_model->new_user ();
    }

    $rules = $this->user_login_model->rules_admin;
    $id || $rules ['password'] .= '|required';
    $this->form_validation->set_rules ( $rules );
    if ($this->form_validation->run () == TRUE) {

          $data=$this->user_login_model->array_from_post(array('name','email','password'));
        $this->data['password']=$this->user_login_model->$data['password'];
        $this->user_login_model->save($data,$id);
        redirect('admin/users');

        // do stuff

    }

如果是新用户，则会发布新数据

public function new_user() {
    $user=new stdClass();
    $user->name ='';
    $user->email ='';
    $user->password ='';
    return $user;

    var_dump($user);

将遍历数组并返回它的模型方法

public function array_from_post($fields) {
    $data = array ();
    foreach ( $fields as $field ) {
        $data['feild']=$this->input->post($field);
        return $data;
    echo var_dump($data);
    }
}

这是 var_dump

object(stdClass)[22]
public 'id' => string '18' (length=2)
public 'email' => string '' (length=0)
public 'password' => string '' (length=0)
public 'name' => string '12' (length=2)

这是空的，你能告诉我是什么问题吗？

Answer 1

试试这个
你的控制器编辑功能

  public function edit($id = NULL) {
    if ($id)
    {
        $this->data ['user'] = $this->user_login_model->get($id);
        count ( $this->data ['user'] ) or $this->data ['errors'] [] = "user could not be found";
    }
    else
    {
        $this->data ['user'] = $this->user_login_model->new_user ();
    }

    $rules = $this->user_login_model->rules_admin;
    $id || $rules ['password'] .= '|required';
    $this->form_validation->set_rules ( $rules );
    if ($this->form_validation->run () == TRUE)
    {

        $this->data=$this->user_login_model->array_from_post(array('name','email','password'));
        $this->data=$this->array_from_post(array('name','email','password'));

        // I removed this line not sure what you did here
        $this->user_login_model->save($this->data,$id);
        // do stuff
        redirect('admin/users');

    }
}

你的模型 array_from_post 函数

public function array_from_post($fields)
{
    $data = array ();
    foreach ( $fields as $field )
    {
        $data[$field]=$this->input->post($field);

    }
    return $data;

}

您的新用户功能

 public function new_user() {
    $user=new stdClass();
    $user->name ='';
    $user->email ='';
    $user->password ='';
    return $user;
}

希望对你有帮助

Answer 2

你的 array_from_post 函数基本上没用。你有一个return INSIDE 循环，这意味着你在第一次尝试迭代循环时中止循环/从函数返回。因此，您只会返回 ONE 的参数值。

例如

array_from_post(array('foo', 'bar'));

foreach(array('foo', 'bar') as $field) {
   return $field;
}

您开始循环，foo 被分配给 $field，然后您返回。循环永远不会到达bar。

你可能想要

public function array_from_post($fields) {
    $data = array ();
    foreach ( $fields as $field ) {
        $data[$field]=$this->input->post($field);
    }
    return $data;
}

注意$data[$field]。使用$data['feild'] 只会给你一个数组，其中包含一个值，最后一个被循环处理。并注意返回调用是如何在循环之外的。