244 lines
6.4 KiB
Go
244 lines
6.4 KiB
Go
package dao
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import (
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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"vote-video-api/api/model"
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"vote-video-api/api/requests"
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"vote-video-api/global"
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)
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type ArticleDao struct {
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}
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// GetArticleById 获取数据-id
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func (r *ArticleDao) GetArticleById(ArticleId int64) (m *model.Article, err error) {
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err = global.Db.First(&m, ArticleId).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// GetArticlePreloadById 获取数据-加载全部关联-id
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func (r *ArticleDao) GetArticlePreloadById(ArticleId int64) (m *model.Article, err error) {
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err = global.Db.Preload(clause.Associations).First(&m, ArticleId).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// DeleteArticle 删除
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func (r *ArticleDao) DeleteArticle(tx *gorm.DB, maps interface{}) error {
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err := tx.Where(maps).Delete(&model.Article{}).Error
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if err != nil {
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return err
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}
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return nil
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}
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// DeleteArticleById 删除-id
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func (r *ArticleDao) DeleteArticleById(tx *gorm.DB, ArticleId int64) error {
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if err := tx.Delete(&model.Article{}, ArticleId).Error; err != nil {
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return err
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}
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return nil
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}
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// EditArticle 修改
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func (r *ArticleDao) EditArticle(tx *gorm.DB, maps interface{}, data interface{}) error {
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err := tx.Model(&model.Article{}).Where(maps).Updates(data).Error
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if err != nil {
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return err
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}
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return nil
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}
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// EditArticleById 修改-id
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func (r *ArticleDao) EditArticleById(tx *gorm.DB, ArticleId int64, data interface{}) error {
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err := tx.Model(&model.Article{}).Where("article_id = ?", ArticleId).Updates(data).Error
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if err != nil {
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return err
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}
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return nil
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}
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// GetArticleList 获取列表
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func (r *ArticleDao) GetArticleList(maps interface{}) (m []*model.Article, err error) {
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err = global.Db.Where(maps).Find(&m).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// GetArticleCount 获取数量
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func (r *ArticleDao) GetArticleCount(maps interface{}) (total int64, err error) {
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err = global.Db.Model(&model.Article{}).Where(maps).Count(&total).Error
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if err != nil {
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return 0, err
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}
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return total, nil
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}
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// GetArticleListRand 获取列表-随机
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func (r *ArticleDao) GetArticleListRand(maps interface{}, limit int) (m []*model.Article, err error) {
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err = global.Db.Where(maps).Order("rand()").Limit(limit).Find(&m).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// AddArticle 新增
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func (r *ArticleDao) AddArticle(tx *gorm.DB, model *model.Article) (*model.Article, error) {
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if err := tx.Create(model).Error; err != nil {
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return nil, err
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}
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return model, nil
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}
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// GetArticle 获取
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func (r *ArticleDao) GetArticle(maps interface{}) (m *model.Article, err error) {
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err = global.Db.Where(maps).First(&m).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// Inc 自增
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func (r *ArticleDao) Inc(tx *gorm.DB, ArticleId int64, field string, numeral int) error {
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err := tx.Model(&model.Article{}).Where("article_id = ?", ArticleId).UpdateColumn(field, gorm.Expr(field+" + ?", numeral)).Error
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if err != nil {
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return err
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}
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return nil
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}
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// Dec 自减
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func (r *ArticleDao) Dec(tx *gorm.DB, ArticleId int64, field string, numeral int) error {
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err := tx.Model(&model.Article{}).Where("article_id = ?", ArticleId).UpdateColumn(field, gorm.Expr(field+" - ?", numeral)).Error
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if err != nil {
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return err
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}
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return nil
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}
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// GetArticlePageSearch 获取图文列表-分页
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func (r *ArticleDao) GetArticlePageSearch(req requests.GetArticlePage, page, pageSize int) (m []*model.Article, total int64, err error) {
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var totalRecords int64
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// 构建查询条件
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query := global.Db.Model(&model.Article{})
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// 作者
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query = query.Preload("ArticleAuthor")
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// 作者关联医院
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query = query.Preload("ArticleAuthor.BaseHospital")
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// 文章状态（1:正常 2:禁用）
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query = query.Where("article_status = ?", 1)
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// 搜索关键字
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if req.Keyword != "" {
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keyword := "%" + req.Keyword + "%" //
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// 标题
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orQuery := global.Db.Model(&model.Article{}).Or("article_title LIKE ?", keyword)
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// 编号
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orQuery = orQuery.Or("article_number LIKE ?", keyword)
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// 医院名称
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hospitalSubQuery := global.Db.Model(&model.BaseHospital{}).
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Select("hospital_id").
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Where("hospital_name LIKE ?", keyword)
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articleAuthorSubQuery := global.Db.Model(&model.ArticleAuthor{}).
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Select("article_id").
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Where(gorm.Expr("hospital_id IN (?)", hospitalSubQuery))
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orQuery = orQuery.Or(gorm.Expr("article_id IN (?)", articleAuthorSubQuery))
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// 作者姓名
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subQuery := global.Db.Model(&model.ArticleAuthor{}).
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Select("article_id").
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Where("author_name LIKE ?", keyword)
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orQuery = orQuery.Or(gorm.Expr("article_id IN (?)", subQuery))
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// 执行组建
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query = query.Where(orQuery)
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}
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// 排序
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query = query.Order("created_at asc")
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// 查询总数量
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if err := query.Count(&totalRecords).Error; err != nil {
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return nil, 0, err
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}
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err = query.Scopes(model.Paginate(page, pageSize)).Find(&m).Error
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if err != nil {
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return nil, 0, err
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}
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return m, totalRecords, nil
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}
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// GetArticleOrderList 获取列表-排序
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func (r *ArticleDao) GetArticleOrderList(maps interface{}, orderField string, limit int) (m []*model.Article, err error) {
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err = global.Db.Where(maps).Preload(clause.Associations).Order(orderField).Limit(limit).Find(&m).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// GetArticleRankList 获取文章排名列表
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func (r *ArticleDao) GetArticleRankList(maps interface{}, orderField string, limit int) (m []*model.Article, err error) {
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err = global.Db.Where(maps).
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Preload("ArticleAuthor").
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Preload("ArticleAuthor.BaseHospital").
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Order(orderField).Limit(limit).Find(&m).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// GetArticleListGtVoteNum 获取大于某一投票数的文章列表
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func (r *ArticleDao) GetArticleListGtVoteNum(maps interface{}, voteNum uint) (m []*model.Article, err error) {
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err = global.Db.Where(maps).Where("vote_num > ?", voteNum).Find(&m).Error
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if err != nil {
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return nil, err
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}
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return m, nil
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}
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// GetArticleRank 获取某一条数据的排名
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func (r *ArticleDao) GetArticleRank(articleID int64) (int, error) {
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var rank int
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// 定义子查询
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subQuery := global.Db.Model(&model.Article{}).
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Select("article_id, vote_num, (@rank := @rank + 1) AS rank").
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Where("article_status = ?", 1).
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Order("vote_num DESC").
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Joins(", (SELECT @rank := 0) AS r")
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// 将子查询作为命名子查询的一部分进行查询
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err := global.Db.Table("(?) AS sub", subQuery).
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Where("sub.article_id = ?", articleID).
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Pluck("sub.rank", &rank).Error
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if err != nil {
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return 0, err
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}
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return rank, nil
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}
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