1. The model class files in the /common/models directory are only generated by the Gii tool and serve as the common model data layer. \common\models\ConfigColumn.php contains the model’s validation rules.
/**
* {@inheritdoc}
*/
public function rules()
{
return [
[['group_id', 'code', 'name'], 'required'],
[['status', 'created_at', 'updated_at'], 'integer'],
[['group_id', 'code', 'name'], 'string', 'max' => 32],
[['group_id', 'code'], 'unique', 'targetAttribute' => ['group_id', 'code']],
[['group_id', 'name'], 'unique', 'targetAttribute' => ['group_id', 'name']],
];
}
2. The model class files in the /common/logics directory handle business logic. They inherit from the /common/models data layer and serve as the common model logic layer. \logics\ConfigColumn.php contains the model’s validation rules.
/**
* @inheritdoc
*/
public function rules()
{
$rules = [
];
$parentRules = parent::rules();
return ArrayHelper::merge($rules, $parentRules);
}
3. POST http://api.pcs-api.localhost/v1/config-columns?login_id=e56db1b43546a110431ac38409ed8e9e&login_tid=ccffd87b68171e8cb6c19f4bb8ccd775 , 422 response
{
"code": 20004,
"message": "Data validation failed: The combination \"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\" of Group ID and Code has already been taken."
}
{
"code": 20004,
"message": "数据验证失败：The combination \"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\" of 租户ID and 栏目代码 has already been taken."
}
4. Analyze the source code: \vendor\yiisoft\yii2\validators\UniqueValidator.php
if (is_array($this->targetAttribute) && count($this->targetAttribute) > 1) {
// fallback for deprecated `comboNotUnique` property - use it as message if is set
if ($this->comboNotUnique === null) {
$this->message = Yii::t('yii', 'The combination {values} of {attributes} has already been taken.');
} else {
$this->message = $this->comboNotUnique;
}
} else {
$this->message = Yii::t('yii', '{attribute} "{value}" has already been taken.');
}
5. ‘The combination {values} of {attributes} has already been taken.’ does not exist in the framework’s built-in Simplified Chinese language pack, as shown in Figure 1.
6. ‘The combination {values} of {attributes} has already been taken.’ exists in the framework’s built-in English language pack, but the source language is not translated, as shown in Figure 2.
7. Since the model class files in the /common/models directory are only generated by the Gii tool and cannot be edited again, custom error messages can only be implemented in \logics\ConfigColumn.php. Note: If the rules() in \common\models\ConfigColumn.php change, \logics\ConfigColumn.php must be adjusted accordingly.
/**
* @inheritdoc
*/
public function rules()
{
$rules = [
[['group_id', 'code'], 'unique', 'targetAttribute' => ['group_id', 'code'], 'message' => Yii::t('app', 'The combination {values} of {attributes} has already been taken.')],
[['group_id', 'name'], 'unique', 'targetAttribute' => ['group_id', 'name'], 'message' => Yii::t('app', 'The combination {values} of {attributes} has already been taken.')],
];
$parentRules = parent::rules();
unset($parentRules[3], $parentRules[4]);
return ArrayHelper::merge($rules, $parentRules);
}
8. Edit \common\messages\zh-CN\app.php
<?php
return [
'The combination {values} of {attributes} has already been taken.' => '组合{attributes}的值"{values}"已经被占用了。',
];9. Edit \api\messages\zh-CN\app.php
<?php
return [
'The combination {values} of {attributes} has already been taken.' => '组合{attributes}的值"{values}"已经被占用了。',
];10. POST http://api.pcs-api.localhost/v1/config-columns?login_id=e56db1b43546a110431ac38409ed8e9e&login_tid=ccffd87b68171e8cb6c19f4bb8ccd775 , 422 response, as shown in Figure 3.
{
"code": 20004,
"message": "Data validation failed: The combination \"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\" of Group ID and Code has already been taken."
}
{
"code": 20004,
"message": "数据验证失败：组合租户ID and 栏目代码的值\"\"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\"\"已经被占用了。"
}