codeigniter 4 中的错误您必须将数据库 table 设置为用于您的查询

Question

我正在使用 codeigniter 4。我正在尝试通过在模型中创建方法从数据库中获取数据，但出现错误

You must set the database table to be used with your query

即使我在查询生成器中提到了 table 名称。我不知道为什么会这样？以下是我的代码

 public function Login($values)
    {
        $db = \Config\Database::connect();
  
        $result= $db->table('tbl_adminuser')
                     ->where(['username',$values['username']])
                     ->where(['password',$values['password']])
                     ->get()
                     ->getResult();
        print_r($result);
    }

Answer 1

为用户创建模型

<?php namespace Myth\Auth\Models;

use CodeIgniter\Model;
use Myth\Auth\Authorization\GroupModel;
use Myth\Auth\Entities\User;

class UserModel extends Model
{
    protected $table = 'users';
    protected $primaryKey = 'id';

    protected $returnType = User::class;
    protected $useSoftDeletes = false;

    protected $allowedFields = [
        'email', 'username', 'password_hash', 'reset_hash', 'reset_at', 'reset_expires', 'activate_hash',
        'status', 'status_message', 'active', 'force_pass_reset', 'permissions',
        'first_name',
        'last_name',
        'image',
        'address',
        'phone',
        'email',
        'gender',
        'country',
        'city',
        'created_at',
        'updated_at',
        'deleted_at',
    ];

    protected $useTimestamps = false;

    protected $validationRules = [
        'email' => 'if_exist|required|valid_email|is_unique[users.email,id,{id}]',
        'phone' => 'if_exist|required|is_unique[users.phone,id,{id}]',
        'username' => 'if_exist|required|alpha_numeric_punct|min_length[3]|max_length[30]|is_unique[users.username,id,{id}]',
        'password_hash' => 'if_exist|required',
    ];
    protected $validationMessages = [];
    protected $skipValidation = false;

    protected $afterInsert = ['addToGroup'];

    /**
     * The id of a group to assign.
     * Set internally by withGroup.
     *
     * @var int|null
     */
    protected $assignGroup;

    /**
     * Logs a password reset attempt for posterity sake.
     *
     * @param string $email
     * @param string|null $token
     * @param string|null $ipAddress
     * @param string|null $userAgent
     */
    public function logResetAttempt(string $email, string $token = null, string $ipAddress = null, string $userAgent = null)
    {
        $this->db->table('auth_reset_attempts')->insert([
            'email' => $email,
            'ip_address' => $ipAddress,
            'user_agent' => $userAgent,
            'token' => $token,
            'created_at' => date('Y-m-d H:i:s')
        ]);
    }

    /**
     * Logs an activation attempt for posterity sake.
     *
     * @param string|null $token
     * @param string|null $ipAddress
     * @param string|null $userAgent
     */
    public function logActivationAttempt(string $token = null, string $ipAddress = null, string $userAgent = null)
    {
        $this->db->table('auth_activation_attempts')->insert([
            'ip_address' => $ipAddress,
            'user_agent' => $userAgent,
            'token' => $token,
            'created_at' => date('Y-m-d H:i:s')
        ]);
    }

    /**
     * Sets the group to assign any users created.
     *
     * @param string $groupName
     *
     * @return $this
     */
    public function withGroup(string $groupName)
    {
        $group = $this->db->table('auth_groups')->where('name', $groupName)->get()->getFirstRow();

        $this->assignGroup = $group->id;

        return $this;
    }

    /**
     * Clears the group to assign to newly created users.
     *
     * @return $this
     */
    public function clearGroup()
    {
        $this->assignGroup = null;

        return $this;
    }

    /**
     * If a default role is assigned in Config\Auth, will
     * add this user to that group. Will do nothing
     * if the group cannot be found.
     *
     * @param mixed $data
     *
     * @return mixed
     */
    protected function addToGroup($data)
    {
        if (is_numeric($this->assignGroup)) {
            $groupModel = model(GroupModel::class);
            $groupModel->addUserToGroup($data['id'], $this->assignGroup);
        }

        return $data;
    }


}

太用模型了

$model = 新用户模型();

$model->asObject()->where('active', '1')->findAll();

Answer 2

从数据库获取数据有两种方式。

使用模型文件
在控制器文件中加载数据库

检查以下两种类型以从数据库中获取数据。

1.使用模型文件

首先，创建一个用户模型并提及数据库的名称table。

模型文件示例如下：

<?php 
namespace App\Models;
     
use CodeIgniter\Model;
    
class UserMasterModel extends Model
{
    protected $table   = 'user_master';
}

然后创建一个控制器文件并使用 use App\Models\UserMasterModel; 加载模型。您应该遵循以下控制器文件示例，其中提到加载模型并使用模型文件获取数据。

<?php 
namespace App\Controllers;
use CodeIgniter\Controller;

use App\Models\UserMasterModel;

public function __construct()
{
    $this->db = \Config\Database::connect();
}

public function Login($values){
    $UserMasterModel = new UserMasterModel();
    $result = $UserMasterModel->where('username',$values['username'])
                                ->where('password',$values['password'])
                                ->findAll();
    print_r($result);
}

2。在控制器文件中加载数据库

使用 \Config\Database::connect() 时，控制器文件如下所示：

<?php 
namespace App\Controllers;
use CodeIgniter\Controller;

public function __construct()
{
    $this->db = \Config\Database::connect();
    $this->user_master = $this->db->table('user_master');
}

public function Login($values){
    $this->user_master->select('*');
    $this->user_master->where('username',$values['username']);
    $this->user_master->where('password',$values['password']);
    $result = $this->user_master->get()->getResult();

    print_r($result);
}

codeigniter 4 中的错误您必须将数据库 table 设置为用于您的查询

error in codeigniter 4 You must set the database table to be used with your query

codeigniter-4