🎨 优化文章相关接口，新增app专用接口

service/article/article.go

@@ -2,8 +2,11 @@ package article
 
 import (
 	"git.echol.cn/loser/lckt/global"
+	"git.echol.cn/loser/lckt/model/app"
 	"git.echol.cn/loser/lckt/model/article"
 	"git.echol.cn/loser/lckt/model/article/request"
+	"git.echol.cn/loser/lckt/model/article/vo"
+	"go.uber.org/zap"
 )
 
 type ArticleService struct{}
@@ -39,3 +42,64 @@ func (ArticleService) GetArticleList(pageInfo request.GetList) (list []article.A
 	err = db.Limit(limit).Offset(offset).Find(&list).Error
 	return
 }
+
+func (s ArticleService) APPGetArticleList(pageInfo request.GetList) (list []vo.ArticleListVo, total int64, err error) {
+	limit := pageInfo.PageSize
+	offset := pageInfo.PageSize * (pageInfo.Page - 1)
+
+	db := global.GVA_DB.Model(&article.Article{})
+	err = db.Count(&total).Error
+	if err != nil {
+		return
+	}
+
+	if pageInfo.Title != "" {
+		db = db.Where("title LIKE ?", "%"+pageInfo.Title+"%")
+	}
+	if pageInfo.CategoryId != 0 {
+		db = db.Where("category_id = ?", pageInfo.CategoryId)
+	}
+	if pageInfo.TeacherId != 0 {
+		db = db.Where("teacher_id = ?", pageInfo.TeacherId)
+	}
+
+	if pageInfo.Keyword != "" {
+		db = db.Where("title LIKE ? OR article.desc LIKE ? OR teacher_name LIKE ?", "%"+pageInfo.Keyword+"%", "%"+pageInfo.Keyword+"%", "%"+pageInfo.Keyword+"%")
+	}
+
+	err = db.Limit(limit).Offset(offset).Omit("teacher_avatar").Order("created_at desc").Find(&list).Error
+	for i, a := range list {
+		global.GVA_DB.Table("app_user").Select("avatar").Where("id = ?", a.TeacherId).Scan(&list[i].TeacherAvatar)
+	}
+
+	return
+}
+
+func (s ArticleService) APPGetArticle(id string, userId uint) (article vo.ArticleVo, err error) {
+	err = global.GVA_DB.Table("article").Where("id = ?", id).First(&article).Error
+	if err != nil {
+		global.GVA_LOG.Error("获取文章失败", zap.Error(err))
+		return
+	}
+	article.IsBuy = 1 // 设置为已购买
+
+	global.GVA_DB.Table("app_user").Select("avatar").Where("id = ?", article.TeacherId).Scan(&article.TeacherAvatar)
+
+	// 判断是否免费
+	if article.IsFree == 0 {
+		// 如果不是免费文章，判断用户是否购买过
+		var count int64
+		err = global.GVA_DB.Model(&app.Order{}).Where("article_id = ? AND user_id = ?", id, userId).Count(&count).Error
+		if err != nil {
+			global.GVA_LOG.Error("查询用户购买记录失败", zap.Error(err))
+			return
+		}
+		if count == 0 {
+			// 用户没有购买过，隐藏Content
+			article.Content = ""
+			article.IsBuy = 0 // 设置为未购买
+		}
+	}
+
+	return
+}