Question

我正在使用带有xampp的yii 2.0并尝试运行此查询

$model = Students::find()->where('student_id = '.$id.'')->one();

和student_id是主键，正如预期的那样，此查询应该只返回一个返回的数据，但返回的数据相同。查询的输出如下

`object(app\models\Students)#72 (8) {
  ["_attributes":"yii\db\BaseActiveRecord":private]=>
  array(12) {
    ["student_id"]=>
    int(1)
    ["student_name"]=>
    string(10) "Anil Kumar"
    ["student_parent_id"]=>
    int(1)
    ["student_class"]=>
    string(1) "1"
    ["student_section"]=>
    string(1) "A"
    ["st_admsn_date"]=>
    string(10) "2017-07-01"
    ["student_image_url"]=>
    string(0) ""
    ["st_perm_address"]=>
    string(29) "31 APC Road, Kolkata - 700023"
    ["st_present_address"]=>
    string(29) "31 APC Road, Kolkata - 700023"
    ["st_blood_group"]=>
    string(2) "B+"
    ["st_medical_history"]=>
    string(2) "OK"
    ["school_id"]=>
    int(1)
  }
  ["_oldAttributes":"yii\db\BaseActiveRecord":private]=>
  array(12) {
    ["student_id"]=>
    int(1)
    ["student_name"]=>
    string(10) "Anil Kumar"
    ["student_parent_id"]=>
    int(1)
    ["student_class"]=>
    string(1) "1"
    ["student_section"]=>
    string(1) "A"
    ["st_admsn_date"]=>
    string(10) "2017-07-01"
    ["student_image_url"]=>
    string(0) ""
    ["st_perm_address"]=>
    string(29) "31 APC Road, Kolkata - 700023"
    ["st_present_address"]=>
    string(29) "31 APC Road, Kolkata - 700023"
    ["st_blood_group"]=>
    string(2) "B+"
    ["st_medical_history"]=>
    string(2) "OK"
    ["school_id"]=>
    int(1)
  }
  ["_related":"yii\db\BaseActiveRecord":private]=>
  array(0) {
  }
  ["_errors":"yii\base\Model":private]=>
  NULL
  ["_validators":"yii\base\Model":private]=>
  NULL
  ["_scenario":"yii\base\Model":private]=>
  string(7) "default"
  ["_events":"yii\base\Component":private]=>
  array(0) {
  }
  ["_behaviors":"yii\base\Component":private]=>
  array(0) {
  }
}`

这是我的模特

<?php

namespace app\models;

use Yii;

class Students extends \yii\db\ActiveRecord
{

    public static function tableName()
    {
        return 'students';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['student_name', 'student_parent_id', 'student_class', 'student_section', 'st_admsn_date', 'student_image_url', 'st_perm_address', 'st_present_address', 'st_blood_group', 'st_medical_history'], 'required'],
            [['student_parent_id', 'school_id'], 'integer'],
            [['st_admsn_date'], 'safe'],
            [['student_name'], 'string', 'max' => 200],
            [['student_class'], 'string', 'max' => 100],
            [['student_section', 'st_blood_group'], 'string', 'max' => 50],
            [['student_image_url'], 'string', 'max' => 400],
            [['st_perm_address', 'st_present_address', 'st_medical_history'], 'string', 'max' => 300],
        ];
    }


    public function attributeLabels()
    {
        return [
            'student_id' => 'Student ID',
            'student_name' => 'Student Name',
            'student_parent_id' => 'Student Parent ID',
            'student_class' => 'Student Class',
            'student_section' => 'Student Section',
            'st_admsn_date' => 'St Admsn Date',
            'student_image_url' => 'Student Image Url',
            'st_perm_address' => 'St Perm Address',
            'st_present_address' => 'St Present Address',
            'st_blood_group' => 'St Blood Group',
            'st_medical_history' => 'St Medical History',
            'school_id' => 'School ID',
        ];
    }
}

我想从结果中删除所有_oldAttributes数据。感谢任何帮助。谢谢。

Answer 1

我在$model

上使用以下行后解决了这个问题

$result = $model->getAttributes();

它为我提供了数组中的数据。如果你想使用这个对象，你不应该为oldAttributes烦恼。在涉及单个对象的操作中，它不会介入。

Answer 2

首先需要改进查询：

$model=Student::findOne([$id]);
echo "<pre>";print_r($model);echo "</pre>";die;

您可以直接将主键传递给findOne函数。

yii 2.0 findOne返回相同的数据但两次

2 个答案: