课程列表分页

src/common/models/Course.php

@@ -4,6 +4,7 @@ namespace common\models;
 
 use Yii;
 use yii\behaviors\TimestampBehavior;
+use yii\data\Pagination;
 use yii\helpers\HtmlPurifier;
 use yii\redis\ActiveRecord;
 
@@ -126,26 +127,37 @@ class Course extends \yii\db\ActiveRecord
 
     /**
      * 获取课程列表
+     *
      * @param int $classId
-     * @param int $page 从0开始
+     * @param int $page 从0开始,如果传入null则使用系统分页机制,并返回 pagination 对象
      * @param int $num
+     * @param int $status 要获取的状态,null代表获取全部,默认为只获取审核通过的课程
      * @return array
      */
-    public static function getCourseListsByClassId($classId, $page=0, $num=10)
+    public static function getCourseListsByClassId($classId, $page=0, $num=10, $status=self::STATUS_OK)
     {
-        $status = self::STATUS_OK;
-        $condition = "class_id=:class_id and status=$status";
-        $params = [':class_id' => $classId];
+        $cond = ['class_id'=>$classId];
+        $status !== null && $cond['status'] = $status;
+
         //获取总数
-        $count = self::find()->where($condition, $params)->count();
-        $start = $page * $num;
+        $count = self::find()->where($cond)->count();
+        $return = ['count'=>$count, 'data' =>[]];
+
+        if ($page === null) {
+            $pagination = new Pagination(['totalCount' => $count, 'pageSize'=>$num, 'forcePageParam'=>false]);
+            $offset = $pagination->offset;
+            $return['pagination'] = $pagination;
+        } else {
+            $offset = $page * $num;
+        }
+
         if ($count > 0) {
-            $data = self::find()->select('id,user_id,price,name,intro,preview_pic,recommend,play_count,comment_count,favorite_count,created_at')->where($condition, $params)->limit($num)->offset($start)->with('teachers')->asArray()->all();
+            $return['data'] = self::find()
+                ->select('id,user_id,price,name,intro,preview_pic,recommend,play_count,comment_count,favorite_count,created_at')
+                ->where($cond)->limit($num)->offset($offset)->with('teachers')->asArray()->all();
         }
-        return [
-            'count' => $count,
-            'data' => $data
-        ];
+
+        return $return;
     }
 
     /**

src/frontend/controllers/MyCourseController.php

@@ -51,9 +51,8 @@ class MyCourseController extends \yii\web\Controller
      */
     public function actionIndex()
     {
-        $list = Course::getCourseListsByClassId($this->classStatus['id']);
-
-        return $this->render('index', ['list'=>$list['data']]);
+        $list = Course::getCourseListsByClassId($this->classStatus['id'], null, 6, null);
+        return $this->render('index', ['list'=>$list['data'], 'pagination'=>$list['pagination']]);
     }
 
     /**

src/frontend/controllers/TeacherManagerController.php

@@ -42,8 +42,7 @@ class TeacherManagerController extends \yii\web\Controller
      */
     public function actionIndex()
     {
-        $data = Teacher::fetchTeachers($this->classStatus['id']);
-
+        $data = Teacher::fetchTeachers($this->classStatus['id'], 0, 100);
         return $this->render('index', compact('data'));
     }
 

src/frontend/views/my-course/index.php

@@ -2,8 +2,10 @@
 /**
  * @var $this yii\web\View
  * @var $list array
+ * @var $pagination yii\data\Pagination
  */
 use yii\helpers\Url;
+use yii\widgets\LinkPager;
 
 $this->title = '课程列表';
 
@@ -12,7 +14,7 @@ $this->title = '课程列表';
  */
 $qiniu = \Yii::$app->qiniu;
 ?>
-<div class="cls-list-box">
+<div class="cls-list-box clearfix">
     <?php foreach ($list as $course) { ?>
     <div class="col-md-4">
         <div class="cls-box-main">
@@ -33,4 +35,5 @@ $qiniu = \Yii::$app->qiniu;
         </div>
     </div>
     <?php } ?>
-</div>
\ No newline at end of file
+</div>
+<?=LinkPager::widget(['pagination'=>$pagination])?>
\ No newline at end of file