新增：连接管理、数据查询等功能

internal/storage/repository/tab_repo.go

@@ -0,0 +1,55 @@
+package repository
+
+import (
+	"go-desk/internal/storage"
+	"go-desk/internal/storage/models"
+	"gorm.io/gorm"
+)
+
+type TabRepository interface {
+	SaveAll(tabs []models.SqlTab) error
+	FindAll() ([]models.SqlTab, error)
+	Delete(id uint) error
+	DeleteAll() error
+}
+
+type tabRepository struct {
+	db *gorm.DB
+}
+
+func NewTabRepository() (TabRepository, error) {
+	db := storage.GetDB()
+	if db == nil {
+		var err error
+		db, err = storage.Init()
+		if err != nil {
+			return nil, err
+		}
+	}
+	return &tabRepository{db}, nil
+}
+
+func (r *tabRepository) SaveAll(tabs []models.SqlTab) error {
+	return r.db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Where("1=1").Delete(&models.SqlTab{}).Error; err != nil {
+			return err
+		}
+		if len(tabs) > 0 {
+			return tx.Create(&tabs).Error
+		}
+		return nil
+	})
+}
+
+func (r *tabRepository) FindAll() ([]models.SqlTab, error) {
+	var tabs []models.SqlTab
+	return tabs, r.db.Order("`order` ASC, created_at ASC").Find(&tabs).Error
+}
+
+func (r *tabRepository) Delete(id uint) error {
+	return r.db.Delete(&models.SqlTab{}, id).Error
+}
+
+func (r *tabRepository) DeleteAll() error {
+	return r.db.Where("1=1").Delete(&models.SqlTab{}).Error
+}