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450 lines
15 KiB
450 lines
15 KiB
<?php
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// +----------------------------------------------------------------------
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// | 学员端知识库服务类
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// +----------------------------------------------------------------------
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namespace app\service\api\student;
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use app\model\student\Student;
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use think\facade\Db;
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use core\base\BaseService;
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/**
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* 学员知识库服务类
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*/
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class KnowledgeService extends BaseService
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{
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/**
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* table_type 枚举值映射
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*/
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private $tableTypeMap = [
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'1' => ['name' => '课程教学大纲', 'icon' => '📖'],
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'2' => ['name' => '跳绳教案库', 'icon' => '🏃'],
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'3' => ['name' => '增高教案库', 'icon' => '📏'],
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'4' => ['name' => '篮球教案库', 'icon' => '🏀'],
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'5' => ['name' => '强化教案库', 'icon' => '💪'],
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'6' => ['name' => '空中忍者教案库', 'icon' => '🥷'],
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'7' => ['name' => '少儿安防教案库', 'icon' => '🛡️'],
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'8' => ['name' => '体能教案库', 'icon' => '🏋️'],
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'9' => ['name' => '热身动作库', 'icon' => '🔥'],
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'10' => ['name' => '体能动作库', 'icon' => '💪'],
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'11' => ['name' => '趣味游戏库', 'icon' => '🎮'],
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'12' => ['name' => '放松动作库', 'icon' => '🧘'],
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'13' => ['name' => '训练内容', 'icon' => '📋'],
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'14' => ['name' => '训练视频', 'icon' => '📹'],
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'15' => ['name' => '课后作业', 'icon' => '📝'],
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'16' => ['name' => '优秀一堂课', 'icon' => '⭐'],
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'17' => ['name' => '空中忍者动作', 'icon' => '🥷'],
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'18' => ['name' => '篮球动作', 'icon' => '🏀'],
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'19' => ['name' => '跳绳动作', 'icon' => '🏃'],
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'20' => ['name' => '跑酷动作', 'icon' => '🏃♂️'],
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'21' => ['name' => '安防动作', 'icon' => '🛡️'],
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'22' => ['name' => '标准化动作', 'icon' => '✅'],
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'23' => ['name' => '3-6岁体测', 'icon' => '👶'],
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'24' => ['name' => '7+体测', 'icon' => '🧒'],
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'25' => ['name' => '3-6岁体测讲解—解读', 'icon' => '👶📊'],
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'26' => ['name' => '7+岁体测讲解—解读', 'icon' => '🧒📊'],
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'27' => ['name' => '互动游戏', 'icon' => '🎲'],
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'28' => ['name' => '套圈游戏', 'icon' => '⭕'],
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'29' => ['name' => '鼓励方式', 'icon' => '👏']
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];
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/**
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* 获取知识文章列表
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* @param array $data
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* @return array
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*/
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public function getKnowledgeList($data)
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{
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$studentId = $data['student_id'];
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$category = $data['category'] ?? '';
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$page = $data['page'] ?? 1;
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$limit = $data['limit'] ?? 10;
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$keyword = $data['keyword'] ?? '';
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// 构建查询条件
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$where = [];
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// 权限控制：检查学员是否有权限查看
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$where[] = ['', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)")];
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// 状态筛选：只查询启用状态的内容
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$where[] = ['status', '=', 1];
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// 软删除筛选：排除已删除的内容
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$where[] = ['delete_time', '=', '0'];
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// 分类筛选
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if (!empty($category)) {
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$where[] = ['table_type', '=', $category];
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}
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// 关键词搜索
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if (!empty($keyword)) {
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$where[] = ['title|content', 'like', "%{$keyword}%"];
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}
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// 查询总数
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$total = Db::table('school_lesson_course_teaching')
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->where($where)
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->count();
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// 分页查询文章列表
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$articles = Db::table('school_lesson_course_teaching')
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->where($where)
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->field('id,title,image,type,url,content,status,create_time,update_time,table_type,user_permission,exam_papers_id')
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->order('create_time desc')
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->limit(($page - 1) * $limit, $limit)
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->select();
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$list = [];
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foreach ($articles as $article) {
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// 检查是否已读
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$isRead = $this->checkArticleRead($article['id'], $studentId);
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// 检查是否收藏
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$isFavorite = $this->checkArticleFavorite($article['id'], $studentId);
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// 获取分类名称
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$categoryInfo = $this->tableTypeMap[$article['table_type']] ?? ['name' => '其他', 'icon' => '📄'];
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$list[] = [
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'id' => $article['id'],
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'title' => $article['title'],
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'image' => $article['image'] ? get_image_url($article['image']) : '',
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'content' => strip_tags($article['content']),
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'table_type' => $article['table_type'],
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'category_name' => $categoryInfo['name'],
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'type' => $article['type'],
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'url' => $article['url'],
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'status' => $article['status'],
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'create_time' => $article['create_time'] ? strtotime($article['create_time']) : 0,
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'update_time' => $article['update_time'] ? strtotime($article['update_time']) : 0,
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'user_permission' => $article['user_permission'],
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'is_read' => $isRead,
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'is_favorite' => $isFavorite
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];
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}
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return [
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'list' => $list,
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'current_page' => $page,
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'last_page' => ceil($total / $limit),
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'total' => $total,
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'per_page' => $limit
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];
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}
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/**
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* 获取知识分类列表
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* @return array
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*/
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public function getKnowledgeCategories()
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{
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$categories = [];
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// 获取有数据的分类统计
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$stats = Db::table('school_lesson_course_teaching')
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->where('status', 1)
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->where('delete_time', '0')
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->group('table_type')
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->field('table_type, count(*) as count')
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->select();
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foreach ($stats as $stat) {
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$tableType = $stat['table_type'];
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if (isset($this->tableTypeMap[$tableType])) {
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$categories[] = [
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'value' => $tableType,
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'text' => $this->tableTypeMap[$tableType]['name'],
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'icon' => $this->tableTypeMap[$tableType]['icon'],
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'count' => $stat['count']
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];
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}
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}
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return $categories;
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}
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/**
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* 获取推荐文章
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* @param array $data
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* @return array
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*/
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public function getRecommendArticles($data)
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{
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$studentId = $data['student_id'];
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$limit = $data['limit'] ?? 5;
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// 构建查询条件
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$where = [];
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$where[] = ['', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)")];
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$where[] = ['status', '=', 1];
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$where[] = ['delete_time', '=', '0'];
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// 查询推荐文章（按创建时间倒序，取最新的）
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$articles = Db::table('school_lesson_course_teaching')
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->where($where)
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->field('id,title,image,content,create_time,table_type')
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->order('create_time desc')
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->limit($limit)
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->select();
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$list = [];
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foreach ($articles as $article) {
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$categoryInfo = $this->tableTypeMap[$article['table_type']] ?? ['name' => '其他', 'icon' => '📄'];
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$list[] = [
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'id' => $article['id'],
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'title' => $article['title'],
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'image' => $article['image'] ? get_image_url($article['image']) : '',
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'summary' => mb_substr(strip_tags($article['content']), 0, 100, 'UTF-8'),
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'category_name' => $categoryInfo['name'],
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'create_time' => $article['create_time'] ? strtotime($article['create_time']) : 0,
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'read_count' => 0 // 这里可以后续添加阅读统计
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];
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}
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return $list;
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}
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/**
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* 获取文章详情
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* @param array $data
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* @return array
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*/
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public function getKnowledgeDetail($data)
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{
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$articleId = $data['id'];
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$studentId = $data['student_id'];
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// 权限验证
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$article = Db::table('school_lesson_course_teaching')
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->where('id', $articleId)
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->where('status', 1)
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->where('delete_time', '0')
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->where('', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)"))
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->find();
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if (!$article) {
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throw new \Exception('文章不存在或无权限访问');
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}
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// 检查是否已读
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$isRead = $this->checkArticleRead($articleId, $studentId);
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// 检查是否收藏
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$isFavorite = $this->checkArticleFavorite($articleId, $studentId);
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// 获取分类名称
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$categoryInfo = $this->tableTypeMap[$article['table_type']] ?? ['name' => '其他', 'icon' => '📄'];
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return [
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'id' => $article['id'],
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'title' => $article['title'],
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'image' => $article['image'] ? get_image_url($article['image']) : '',
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'content' => $article['content'],
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'table_type' => $article['table_type'],
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'category_name' => $categoryInfo['name'],
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'type' => $article['type'],
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'url' => $article['url'],
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'status' => $article['status'],
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'create_time' => $article['create_time'] ? strtotime($article['create_time']) : 0,
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'update_time' => $article['update_time'] ? strtotime($article['update_time']) : 0,
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'user_permission' => $article['user_permission'],
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'exam_papers_id' => $article['exam_papers_id'],
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'is_read' => $isRead,
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'is_favorite' => $isFavorite
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];
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}
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/**
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* 标记文章已读
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* @param array $data
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* @return array
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*/
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public function markArticleRead($data)
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{
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$articleId = $data['article_id'];
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$studentId = $data['student_id'];
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// 检查文章是否存在且有权限
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$article = Db::table('school_lesson_course_teaching')
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->where('id', $articleId)
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->where('status', 1)
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->where('delete_time', '0')
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->where('', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)"))
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->find();
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if (!$article) {
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throw new \Exception('文章不存在或无权限访问');
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}
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// 检查是否已经标记为已读
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$existRead = Db::table('school_student_article_reads')
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->where('student_id', $studentId)
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->where('article_id', $articleId)
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->find();
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if ($existRead) {
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return ['message' => '已标记为已读'];
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}
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// 插入阅读记录
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Db::table('school_student_article_reads')->insert([
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'student_id' => $studentId,
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'article_id' => $articleId,
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'read_time' => date('Y-m-d H:i:s'),
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'read_duration' => 0
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]);
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return ['message' => '标记已读成功'];
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}
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/**
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* 收藏/取消收藏文章
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* @param array $data
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* @return array
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*/
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public function toggleArticleFavorite($data)
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{
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$articleId = $data['article_id'];
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$studentId = $data['student_id'];
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$action = $data['action'];
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// 检查文章是否存在且有权限
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$article = Db::table('school_lesson_course_teaching')
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->where('id', $articleId)
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->where('status', 1)
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->where('delete_time', '0')
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->where('', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)"))
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->find();
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if (!$article) {
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throw new \Exception('文章不存在或无权限访问');
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}
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if ($action === 'add') {
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// 收藏
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$existFavorite = Db::table('school_student_favorites')
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->where('student_id', $studentId)
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->where('target_type', 'article')
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->where('target_id', $articleId)
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->find();
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if ($existFavorite) {
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return ['message' => '已收藏', 'is_favorite' => true];
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}
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Db::table('school_student_favorites')->insert([
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'student_id' => $studentId,
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'target_type' => 'article',
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'target_id' => $articleId,
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'created_at' => date('Y-m-d H:i:s')
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]);
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return ['message' => '收藏成功', 'is_favorite' => true];
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} else {
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// 取消收藏
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Db::table('school_student_favorites')
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->where('student_id', $studentId)
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->where('target_type', 'article')
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->where('target_id', $articleId)
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->delete();
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return ['message' => '取消收藏成功', 'is_favorite' => false];
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}
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}
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/**
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* 获取知识库统计信息
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* @param int $studentId
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* @return array
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*/
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public function getKnowledgeStats($studentId)
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{
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// 总文章数
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$totalArticles = Db::table('school_lesson_course_teaching')
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->where('status', 1)
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->where('delete_time', '0')
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->where('', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)"))
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->count();
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// 收藏数
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$favorites = Db::table('school_student_favorites')
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->where('student_id', $studentId)
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->where('target_type', 'article')
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->count();
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// 已读文章数
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$readArticles = Db::table('school_student_article_reads')
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->where('student_id', $studentId)
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->count();
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// 分类统计
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$categoriesCount = [];
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$categoryStats = Db::table('school_lesson_course_teaching')
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->where('status', 1)
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->where('delete_time', '0')
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->where('', 'exp', Db::raw("FIND_IN_SET({$studentId}, student_ids)"))
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->group('table_type')
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->field('table_type, count(*) as count')
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->select();
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foreach ($categoryStats as $stat) {
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$categoriesCount[$stat['table_type']] = $stat['count'];
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}
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return [
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'total_articles' => $totalArticles,
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'favorites' => $favorites,
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'read_articles' => $readArticles,
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'categories_count' => $categoriesCount
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];
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}
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/**
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* 搜索知识文章
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* @param array $data
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* @return array
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*/
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public function searchKnowledgeArticles($data)
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{
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// 复用getKnowledgeList方法，已经包含了搜索功能
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return $this->getKnowledgeList($data);
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}
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/**
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* 检查文章是否已读
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* @param int $articleId
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* @param int $studentId
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* @return bool
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*/
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private function checkArticleRead($articleId, $studentId)
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{
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$read = Db::table('school_student_article_reads')
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->where('student_id', $studentId)
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->where('article_id', $articleId)
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->find();
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return !empty($read);
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}
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/**
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* 检查文章是否收藏
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* @param int $articleId
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* @param int $studentId
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* @return bool
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*/
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private function checkArticleFavorite($articleId, $studentId)
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{
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$favorite = Db::table('school_student_favorites')
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->where('student_id', $studentId)
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->where('target_type', 'article')
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->where('target_id', $articleId)
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->find();
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return !empty($favorite);
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}
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}
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