初始化项目：添加后端代码、ThinkPHP框架、前端资源

2026-09-03 12:42:39 +08:00
commit 482bece22e
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+<?php
+
+namespace app\api\controller\course;
+
+use app\common\controller\Api;
+use mysql_xdevapi\Collection;
+
+/**
+ * 课程
+ */
+class Column extends Api
+{
+    // 无需登录的接口,*表示全部
+    protected $noNeedLogin = ['*'];
+    protected $noNeedRight = '*';
+    public function _initialize()
+    {
+        parent::_initialize();
+        $this->columnDirModel = new \app\admin\model\course\ColumnDir;
+        $this->model = new \app\admin\model\course\ColumnBind;
+        $this->courseModel = new \app\admin\model\course\Course;
+    }
+    /**
+     * 获取专栏目录
+     * @return void
+     */
+    public function getDir(){
+
+        $courseId = input("id");
+        $row = $this->columnDirModel->courseIdGetList($courseId);
+        return $this->success("获取成功",$row);
+    }
+
+
+    /**
+     * 获取专栏所属课程
+     * @return mixed
+     */
+    public function getCourse(){
+        $courseId = input('id');
+        $sort = input('sort','asc');
+
+        $courseInfo = $this->courseModel->get($courseId);
+
+        if(!$courseInfo){
+            return $this->error("获取课程信息错误");
+        }
+        
+        $list = $this->model
+            ->with(['course'])
+            ->where([
+                'column_bind.column_id'=>$courseId,
+                'course.status'=>1
+            ])
+            ->order("column_bind.sort {$sort}, column_bind.createtime {$courseInfo['column_update']}")
+            ->select();
+
+        //判断有没有订阅
+        $isSubscription = \app\common\model\user\Subscription::getSubscriptionAuth($this->auth->id,$courseId);
+
+        if(!empty($list)){
+            foreach ($list as $index => $item){
+                $item['course'] = $item['course']->toArray();
+                $item->getRelation('course')->visible(['name','cover','id','updatetime','views','type','type_text','pay_type']);
+                $item['course'] = $this->courseModel->structrue($item['course'],'decode');
+                $item->visible(['id','course','try','subscription']);
+                $isCourseSubscription = \app\common\model\user\Subscription::getSubscriptionAuth($this->auth->id,$item['course']['id']);
+
+                if($isSubscription || $isCourseSubscription || $item->try){
+                    $list[$index]['subscription'] = 1;
+                }else{
+                    $list[$index]['subscription'] = 0;
+                }
+            }
+        }
+
+        return $this->success("获取成功",$list);
+    }
+
+
+    /**
+     * 获取专栏目录 新
+     * @return void
+     */
+    public function getColumnDir(){
+        $courseId = input('id');
+        $sort = input('sort','asc');
+
+        $courseInfo = $this->courseModel->get($courseId);
+
+        if(!$courseInfo){
+            return $this->error("获取课程信息错误");
+        }
+
+        $list = $this->model
+            ->with(['bindcourse'])
+            ->where([
+                'column_bind.column_id'=>$courseId,
+            ])
+            ->order("column_bind.sort {$sort}, column_bind.createtime {$courseInfo['column_update']}")
+            ->select();
+
+
+        //判断有没有订阅
+        $isSubscription = \app\common\model\user\Subscription::getSubscriptionAuth($this->auth->id,$courseId);
+
+        if(!empty($list)){
+            foreach ($list as $index => &$item){
+                $item->visible(['id','bindcourse','try','subscription','type','p_id','title']);
+                $item->getRelation('bindcourse')->visible(['name','cover','id','updatetime','views','type','type_text','status','pay_type','no']);
+                $item = $item->toArray();
+                if($item['type'] == 1){
+                    if(!$item['bindcourse']['id'] || $item['bindcourse']['status']!=1){
+                        unset($list[$index]);
+                        continue;
+                    }
+                    $item['bindcourse'] = $this->courseModel->structrue($item['bindcourse'],'decode');
+                    $isCourseSubscription = \app\common\model\user\Subscription::getSubscriptionAuth($this->auth->id,$item['bindcourse']['id']);
+                    if($isSubscription || $isCourseSubscription || $item['try']){
+                        $list[$index]['subscription'] = 1;
+                    }else{
+                        $list[$index]['subscription'] = 0;
+                    }
+                }
+            }
+            //重新给数组排序
+            $list = array_values($list);
+        }
+
+        return $this->success("获取成功",$list);
+    }
+
+    /**
+     * 获取下一课程
+     * @return mixed
+     */
+    public function getNextCourse() {
+        $courseId = input('course_id');
+        $columnId = input('column_id');
+
+        // 1. 验证专栏和课程是否存在
+        $columnInfo = $this->courseModel->get($columnId);
+        if (!$columnInfo) {
+            return $this->success();
+        }
+
+        $courseInfo = $this->model->where(['column_id' => $columnId, 'course_id' => $courseId])->find();
+        if (!$courseInfo) {
+            return $this->success();
+        }
+
+        // 2. 关键修正：查询专栏下所有课程和目录（包含type=1和type=2）
+        $allItems = $this->model
+            ->with(['course'])
+            ->where([
+                'course.status'=>1
+            ])
+            ->where('column_id', $columnId)
+            ->field('column_bind.id, column_bind.course_id, column_bind.type, column_bind.sort, column_bind.p_id, column_bind.createtime')
+            ->select();
+
+        if (empty($allItems)) {
+            return $this->success();
+        }
+
+        // 3. 构建映射和子元素分组（方便快速查找父元素和子课程）
+        $itemMap = [];       // 按 id 映射所有元素（id是column_bind表的主键）
+        $childrenGroups = []; // 按 p_id 分组（p_id对应父目录的id）
+        $courseIdToItemId = []; // 课程id -> column_bind.id 的映射（用于快速定位当前课程）
+        foreach ($allItems as $item) {
+            $itemMap[$item['id']] = $item;
+            $pId = $item['p_id'];
+            if (!isset($childrenGroups[$pId])) {
+                $childrenGroups[$pId] = [];
+            }
+            $childrenGroups[$pId][] = $item;
+            // 关联课程id和column_bind的id（因为传入的是course_id，不是column_bind的id）
+            if ($item['type'] == 1) { // 只有课程有course_id
+                $courseIdToItemId[$item['course_id']] = $item['id'];
+            }
+        }
+
+        // 4. 筛选一级元素（p_id=0的课程/目录）并排序
+        $level1Items = $childrenGroups[0] ?? [];
+        usort($level1Items, function($a, $b) {
+            // 排序规则：sort升序 -> createtime升序
+            if ($a['sort'] != $b['sort']) {
+                return $a['sort'] - $b['sort'];
+            }
+            return strcmp($a['createtime'], $b['createtime']);
+        });
+
+        // 5. 构建最终排序列表（一级元素 + 对应二级课程）
+        $finalSortedList = [];
+        foreach ($level1Items as $item) {
+            $finalSortedList[] = $item;
+            // 如果是目录，且有子课程，将子课程排序后追加
+            if ($item['type'] == 2 && isset($childrenGroups[$item['id']])) {
+                $children = $childrenGroups[$item['id']];
+                // 子课程排序规则：sort升序 -> createtime升序
+                usort($children, function($a, $b) {
+                    if ($a['sort'] != $b['sort']) {
+                        return $a['sort'] - $b['sort'];
+                    }
+                    return strcmp($a['createtime'], $b['createtime']);
+                });
+                $finalSortedList = array_merge($finalSortedList, $children);
+            }
+        }
+
+        // 6. 找到当前课程在排序列表中的位置
+        $currentItemId = $courseIdToItemId[$courseId] ?? null;
+        $currentIndex = -1;
+        foreach ($finalSortedList as $index => $item) {
+            if ($item['id'] == $currentItemId) {
+                $currentIndex = $index;
+                break;
+            }
+        }
+
+        // 7. 查找下一个课程（跳过目录，只找type=1的）
+        $nextCourse = null;
+        $listCount = count($finalSortedList);
+        for ($i = $currentIndex + 1; $i < $listCount; $i++) {
+            $candidate = $finalSortedList[$i];
+            if ($candidate['type'] == 1) { // 只取课程
+                $nextCourse = $candidate;
+                break;
+            }
+        }
+
+        if (!$nextCourse) {
+            return $this->success('');
+        }
+
+        // 8. 关联课程详情并返回
+        $nextCourseInfo = $this->courseModel->get($nextCourse['course_id']);
+        if (!$nextCourseInfo) {
+            return $this->success();
+        }
+
+        // 整理返回字段
+        $result = $nextCourseInfo->visible(['name', 'column_id', 'cover', 'id', 'updatetime', 'views', 'type', 'type_text', 'status', 'pay_type', 'no'])->toArray();
+        $result['column_id'] = $columnId;
+
+        return $this->success("获取成功", $result);
+    }
+}