backend/internal/repository/channel_repo.go

package repository

import (
	"carrot_bbs/internal/model"

	"gorm.io/gorm"
)

// ChannelRepository 频道配置仓储接口
type ChannelRepository interface {
	ListActive() ([]*model.Channel, error)
	ListAll() ([]*model.Channel, error)
	Create(channel *model.Channel) error
	Update(channel *model.Channel) error
	GetByID(id string) (*model.Channel, error)
	Delete(id string) error
}

// channelRepository 频道配置仓储实现
type channelRepository struct {
	db *gorm.DB
}

func NewChannelRepository(db *gorm.DB) ChannelRepository {
	return &channelRepository{db: db}
}

func (r *channelRepository) ListActive() ([]*model.Channel, error) {
	var channels []*model.Channel
	err := r.db.
		Where("is_active = ?", true).
		Order("sort_order ASC, created_at ASC").
		Find(&channels).Error
	return channels, err
}

func (r *channelRepository) ListAll() ([]*model.Channel, error) {
	var channels []*model.Channel
	err := r.db.
		Order("sort_order ASC, created_at ASC").
		Find(&channels).Error
	return channels, err
}

func (r *channelRepository) Create(channel *model.Channel) error {
	return r.db.Create(channel).Error
}

func (r *channelRepository) Update(channel *model.Channel) error {
	return r.db.Save(channel).Error
}

func (r *channelRepository) GetByID(id string) (*model.Channel, error) {
	var channel model.Channel
	if err := r.db.First(&channel, "id = ?", id).Error; err != nil {
		return nil, err
	}
	return &channel, nil
}

func (r *channelRepository) Delete(id string) error {
	return r.db.Delete(&model.Channel{}, "id = ?", id).Error
}