First commit

backend/internal/repository/setting_repo.go

@@ -0,0 +1,108 @@
+package repository
+
+import (
+	"context"
+	"sub2api/internal/model"
+	"time"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+// SettingRepository 系统设置数据访问层
+type SettingRepository struct {
+	db *gorm.DB
+}
+
+// NewSettingRepository 创建系统设置仓库实例
+func NewSettingRepository(db *gorm.DB) *SettingRepository {
+	return &SettingRepository{db: db}
+}
+
+// Get 根据Key获取设置值
+func (r *SettingRepository) Get(ctx context.Context, key string) (*model.Setting, error) {
+	var setting model.Setting
+	err := r.db.WithContext(ctx).Where("key = ?", key).First(&setting).Error
+	if err != nil {
+		return nil, err
+	}
+	return &setting, nil
+}
+
+// GetValue 获取设置值字符串
+func (r *SettingRepository) GetValue(ctx context.Context, key string) (string, error) {
+	setting, err := r.Get(ctx, key)
+	if err != nil {
+		return "", err
+	}
+	return setting.Value, nil
+}
+
+// Set 设置值（存在则更新，不存在则创建）
+func (r *SettingRepository) Set(ctx context.Context, key, value string) error {
+	setting := &model.Setting{
+		Key:       key,
+		Value:     value,
+		UpdatedAt: time.Now(),
+	}
+
+	return r.db.WithContext(ctx).Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "key"}},
+		DoUpdates: clause.AssignmentColumns([]string{"value", "updated_at"}),
+	}).Create(setting).Error
+}
+
+// GetMultiple 批量获取设置
+func (r *SettingRepository) GetMultiple(ctx context.Context, keys []string) (map[string]string, error) {
+	var settings []model.Setting
+	err := r.db.WithContext(ctx).Where("key IN ?", keys).Find(&settings).Error
+	if err != nil {
+		return nil, err
+	}
+
+	result := make(map[string]string)
+	for _, s := range settings {
+		result[s.Key] = s.Value
+	}
+	return result, nil
+}
+
+// SetMultiple 批量设置值
+func (r *SettingRepository) SetMultiple(ctx context.Context, settings map[string]string) error {
+	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		for key, value := range settings {
+			setting := &model.Setting{
+				Key:       key,
+				Value:     value,
+				UpdatedAt: time.Now(),
+			}
+			if err := tx.Clauses(clause.OnConflict{
+				Columns:   []clause.Column{{Name: "key"}},
+				DoUpdates: clause.AssignmentColumns([]string{"value", "updated_at"}),
+			}).Create(setting).Error; err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+// GetAll 获取所有设置
+func (r *SettingRepository) GetAll(ctx context.Context) (map[string]string, error) {
+	var settings []model.Setting
+	err := r.db.WithContext(ctx).Find(&settings).Error
+	if err != nil {
+		return nil, err
+	}
+
+	result := make(map[string]string)
+	for _, s := range settings {
+		result[s.Key] = s.Value
+	}
+	return result, nil
+}
+
+// Delete 删除设置
+func (r *SettingRepository) Delete(ctx context.Context, key string) error {
+	return r.db.WithContext(ctx).Where("key = ?", key).Delete(&model.Setting{}).Error
+}