在 Yii 2 下，[[yii\validators\UniqueValidator|unique(唯一性)]]，组合字段的唯一性，在公共的模型逻辑层中自定义错误信息
1、/common/models 目录中的模型类文件仅允许Gii工具所生成，为公共的模型数据层，\common\models\ConfigColumn.php，模型的相关验证规则
1 2 3 4 5 6 7 8 9 10 11 12 13 | /** * {@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、/common/logics 目录中的模型类文件为业务逻辑相关，继承至 /common/models 数据层，为公共的模型逻辑层，\logics\ConfigColumn.php，模型的相关验证规则
1 2 3 4 5 6 7 8 9 10 11 | /** * @inheritdoc */public function rules(){ $rules = [ ]; $parentRules = parent::rules(); return ArrayHelper::merge($rules, $parentRules);} |
3、POST http://api.pcs-api.localhost/v1/config-columns?login_id=e56db1b43546a110431ac38409ed8e9e&login_tid=ccffd87b68171e8cb6c19f4bb8ccd775 ，422响应
1 2 3 4 | { "code": 20004, "message": "Data validation failed: The combination \"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\" of Group ID and Code has already been taken."} |
1 2 3 4 | { "code": 20004, "message": "数据验证失败：The combination \"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\" of 租户ID and 栏目代码 has already been taken."} |
4、分析源代码，\vendor\yiisoft\yii2\validators\UniqueValidator.php
1 2 3 4 5 6 7 8 9 10 | if (is_array($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.’ 在框架自带的中文简体语言包中不存在，如图1
图1
6、’The combination {values} of {attributes} has already been taken.’ 在框架自带的英文语言包中存在，但是源语言未翻译，如图2
图2
7、/common/models 目录中的模型类文件仅允许Gii工具所生成，不允许再次编辑，自定义错误信息，只能够在 \logics\ConfigColumn.php 中实现，注：如果 \common\models\ConfigColumn.php 的 rules() 有变动，\logics\ConfigColumn.php 也需要相应的调整。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | /** * @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、编辑 \common\messages\zh-CN\app.php
1 2 3 4 | <?phpreturn [ 'The combination {values} of {attributes} has already been taken.' => '组合{attributes}的值"{values}"已经被占用了。',]; |
9、编辑 \api\messages\zh-CN\app.php
1 2 3 4 | <?phpreturn [ '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响应，如图3
图3
1 2 3 4 | { "code": 20004, "message": "Data validation failed: The combination \"015ce30b116ce86058fa6ab4fea4ac63\"-\"wxcq\" of Group ID and Code has already been taken."} |
1 2 3 4 | { "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。"} |
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