init

internal/service/notice_service.go

@@ -0,0 +1,50 @@
+package service
+
+import (
+	"exam_registration/internal/dao"
+	"exam_registration/internal/model"
+	"errors"
+	"time"
+)
+
+type NoticeService struct{}
+
+func (s *NoticeService) CreateNotice(notice *model.ExamNotice) error {
+	notice.PublishTime = time.Now()
+	return dao.DB.Create(notice).Error
+}
+
+func (s *NoticeService) GetNoticeByID(id uint64) (*model.ExamNotice, error) {
+	var notice model.ExamNotice
+	if err := dao.DB.Preload("Exam").First(&notice, id).Error; err != nil {
+		return nil, errors.New("通知不存在")
+	}
+	return &notice, nil
+}
+
+func (s *NoticeService) GetNoticeList(examID, page, pageSize int) ([]model.ExamNotice, int64, error) {
+	var notices []model.ExamNotice
+	var total int64
+
+	offset := (page - 1) * pageSize
+	query := dao.DB.Model(&model.ExamNotice{}).Preload("Exam")
+
+	if examID > 0 {
+		query = query.Where("exam_id = ?", examID)
+	}
+
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	err := query.Offset(offset).Limit(pageSize).Order("id DESC").Find(&notices).Error
+	return notices, total, err
+}
+
+func (s *NoticeService) UpdateNotice(id uint64, updates map[string]interface{}) error {
+	return dao.DB.Model(&model.ExamNotice{}).Where("id = ?", id).Updates(updates).Error
+}
+
+func (s *NoticeService) DeleteNotice(id uint64) error {
+	return dao.DB.Delete(&model.ExamNotice{}, id).Error
+}