public function afterDelete()
{
parent::afterDelete();
//修改直接子类的父级id
self::updateAll(['parent' => $this->parent], 'parent=:parent AND type=:type', [':parent' => $this->mid, ':type' => static::TYPE]);
//删除和文章的关联
Relationship::deleteAll(['mid' => $this->mid]);
}
public static function getTags($fields = [], $with = [], $pageSize = false, $page = false)
{
$model = Meta::find()->where(['type' => Meta::TYPE_TAG, 'status' => Meta::STATUS_ACTIVE]);
$countModel = clone $model;
$pagination = new Pagination(['totalCount' => $countModel->count('id'), 'pageSize' => $pageSize]);
if ($page) {
$pagination->setPage($page, true);
}
return ['data' => $model->select($fields)->with($with)->limit($pagination->getLimit())->offset($pagination->getOffset())->orderBy('created_at desc')->asArray()->all(), 'pagination' => $pagination];
}
public function search($params)
{
$query = Meta::find();
$query->andFilterWhere(['type' => Meta::TYPE_ARTICLE_CATEGORIES]);
$query->with('parent');
$dataProvider = new ActiveDataProvider(['query' => $query]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere(['id' => $this->id, 'status' => $this->status, 'content_total' => $this->content_total, 'created_at' => $this->created_at, 'parent_id' => $this->parent_id]);
$query->andFilterWhere(['like', 'name', $this->name])->andFilterWhere(['like', 'slug', $this->slug])->andFilterWhere(['like', 'description', $this->description]);
return $dataProvider;
}
public function search($params)
{
$query = Meta::find();
switch ($this->scenario) {
case self::SCENARIO_TAG:
$query->andFilterWhere(['type' => self::TYPE_TAG]);
break;
case self::SCENARIO_LINK_CATEGORIES:
$query->andFilterWhere(['type' => self::TYPE_LINK_CATEGORIES]);
break;
case self::SCENARIO_ARTICLE_CATEGORIES:
case self::SCENARIO_DEFAULT:
default:
$query->andFilterWhere(['type' => self::TYPE_ARTICLE_CATEGORIES]);
}
$dataProvider = new ActiveDataProvider(['query' => $query]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere(['id' => $this->id, 'status' => $this->status, 'parent_id' => $this->parent_id, 'content_total' => $this->content_total]);
$query->andFilterWhere(['like', 'name', $this->name])->andFilterWhere(['like', 'slug', $this->slug])->andFilterWhere(['like', 'description', $this->description]);
return $dataProvider;
}
public function getChilds()
{
return $this->hasMany(Meta::className(), ['parent_id' => 'id']);
}
<?php
use yii\helpers\Html;
use kartik\widgets\ActiveForm;
use kartik\builder\Form;
use kartik\datecontrol\DateControl;
/**
* @var yii\web\View $this
* @var common\models\Meta $model
* @var yii\widgets\ActiveForm $form
*/
$parents = \yii\helpers\ArrayHelper::map(\common\models\Meta::find()->where(['status' => \common\models\Meta::STATUS_ACTIVE, 'type' => \common\models\Meta::TYPE_ARTICLE_CATEGORIES, 'parent_id' => 0])->asArray()->all(), 'id', 'name');
$parents = \yii\helpers\ArrayHelper::merge([0 => '顶级分类'], $parents);
?>
<div class="meta-form">
<?php
$form = ActiveForm::begin(['type' => ActiveForm::TYPE_HORIZONTAL]);
echo Form::widget(['model' => $model, 'form' => $form, 'columns' => 1, 'attributes' => ['name' => ['type' => Form::INPUT_TEXT, 'options' => ['maxlength' => 32, 'placeholder' => 'Enter Name...']], 'slug' => ['type' => Form::INPUT_TEXT, 'options' => ['maxlength' => 255, 'placeholder' => 'Enter Slug...']], 'parent_id' => ['type' => Form::INPUT_WIDGET, 'widgetClass' => \kartik\widgets\Select2::className(), 'options' => ['data' => $parents]], 'description' => ['type' => Form::INPUT_TEXTAREA, 'options' => ['rows' => 5, 'maxlength' => 255, 'placeholder' => 'Enter Description...']]]]);
?>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<?php
echo Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']);
?>
</div>
</div>
<?php
ActiveForm::end();
?>
/**
* 保存或插入内容的标签
* @param string|array $tags 标签
* @return bool
* @throws ErrorException
* @throws \Exception
*/
public function saveTags($tags)
{
if (is_string($tags)) {
if (($tags = trim($tags)) === '') {
$tags = [];
} else {
$tags = explode(',', $tags);
}
}
//对标签去除空格并去重
$tags = array_unique(array_map('trim', $tags));
//如果标签为空并且是新增内容，则直接返回真
if (empty($tags) && !$this->id) {
return true;
}
$relationshipModel = new Relationship();
$metaModel = new Meta(['scenario' => Meta::SCENARIO_TAG]);
//取出Meta表已经有的同名标签
$existTags = $metaModel->find()->where(['type' => Meta::TYPE_TAG])->andFilterWhere(['in', 'name', $tags])->select(['name'])->asArray()->column();
//取出数据库没有的标签名称（要添加到Meta表的标签）
$newTags = array_diff($tags, $existTags);
if (!empty($newTags)) {
//如果有新增的标签
foreach ($newTags as $tag) {
$model = clone $metaModel;
$model->setAttributes(['name' => $tag]);
if (!$model->insert()) {
throw new ErrorException(current($model->getFirstErrors()));
}
}
}
//如果标签不为空
if (!empty($tags)) {
//找出本内容的标签
$contentTags = $metaModel->find()->where(['type' => Meta::TYPE_TAG, 'name' => $tags, 'status' => Meta::STATUS_ACTIVE])->select(['id', 'name'])->asArray()->all();
} else {
$contentTags = [];
}
//取出久的标签
$oldTags = ArrayHelper::getColumn($this->tags, 'name');
$updateCountersTagIds = [];
if (!empty($contentTags)) {
//准备插入的文章关联标签
$relationshipInsertData = [];
foreach ($contentTags as $tag) {
//如果要加的标签之前就有则跳过
if (in_array($tag['name'], $oldTags)) {
continue;
}
$relationshipInsertData[] = ['content_id' => $this->id, 'meta_id' => $tag['id']];
$updateCountersTagIds[] = $tag['id'];
}
if (!empty($relationshipInsertData)) {
if (!$relationshipModel->getDb()->createCommand()->batchInsert($relationshipModel->tableName(), ['content_id', 'meta_id'], $relationshipInsertData)->execute()) {
throw new \ErrorException('插入文章标签关联失败');
}
}
}
$deleteTagIds = [];
foreach ($this->tags as $tag) {
if (!in_array($tag->name, $tags)) {
$deleteTagIds[] = $tag->id;
}
}
//内容新增的标签的内容统计+1
if (!empty($updateCountersTagIds)) {
if (!$metaModel->updateAllCounters(['content_total' => 1], ['id' => $updateCountersTagIds])) {
throw new ErrorException('更新标签内容统计失败');
}
}
if (!empty($deleteTagIds)) {
//内容之前的标签被删除则内容统计-1
$metaModel->updateAllCounters(['content_total' => -1], ['id' => $deleteTagIds]);
//然后删除内容里这些不要的标签
$relationshipModel->deleteAll(['content_id' => $this->id, 'meta_id' => $deleteTagIds]);
}
return true;
}
public function getAll($fields = [], $with = [])
{
return self::$model->find()->select($fields)->with($with)->where(['type' => Meta::TYPE_ARTICLE_CATEGORIES, 'status' => Meta::STATUS_ACTIVE])->asArray()->all();
}
public function afterDelete()
{
parent::afterDelete();
//删除和文章的关联
Relationship::deleteAll(['mid' => $this->mid]);
}
/**
* Finds the Meta model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* @param integer $id
* @return Meta the loaded model
* @throws NotFoundHttpException if the model cannot be found
*/
protected function findModel($id)
{
if (($model = Meta::findOne($id)) !== null) {
$model->setScenario(Meta::SCENARIO_TAG);
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
/**
* @return \yii\db\ActiveQuery
*/
public function getMeta()
{
return $this->hasOne(Meta::className(), ['id' => 'meta_id']);
}
