internal/app/api/api.go

@@ -37,19 +37,20 @@ import (
 
 // API 结构体定义了 HTTP 服务器及其依赖
 type API struct {
-	engine              *gin.Engine                   // Gin 引擎实例，用于处理 HTTP 请求
+	engine              *gin.Engine                    // Gin 引擎实例，用于处理 HTTP 请求
-	logger              *logs.Logger                  // 日志记录器，用于输出日志信息
+	logger              *logs.Logger                   // 日志记录器，用于输出日志信息
-	userRepo            repository.UserRepository     // 用户数据仓库接口，用于用户数据操作
+	userRepo            repository.UserRepository      // 用户数据仓库接口，用于用户数据操作
-	tokenService        token.TokenService            // Token 服务接口，用于 JWT token 的生成和解析
+	tokenService        token.TokenService             // Token 服务接口，用于 JWT token 的生成和解析
-	auditService        audit.Service                 // 审计服务，用于记录用户操作
+	auditService        audit.Service                  // 审计服务，用于记录用户操作
-	httpServer          *http.Server                  // 标准库的 HTTP 服务器实例，用于启动和停止服务
+	httpServer          *http.Server                   // 标准库的 HTTP 服务器实例，用于启动和停止服务
-	config              config.ServerConfig           // API 服务器的配置，使用 infra/config 包中的 ServerConfig
+	config              config.ServerConfig            // API 服务器的配置，使用 infra/config 包中的 ServerConfig
-	userController      *user.Controller              // 用户控制器实例
+	userController      *user.Controller               // 用户控制器实例
-	deviceController    *device.Controller            // 设备控制器实例
+	deviceController    *device.Controller             // 设备控制器实例
-	planController      *plan.Controller              // 计划控制器实例
+	planController      *plan.Controller               // 计划控制器实例
-	pigFarmController   *management.PigFarmController // 猪场管理控制器实例
+	pigFarmController   *management.PigFarmController  // 猪场管理控制器实例
-	listenHandler       webhook.ListenHandler         // 设备上行事件监听器
+	pigBatchController  *management.PigBatchController // 猪批次控制器实例
-	analysisTaskManager *task.AnalysisPlanTaskManager // 计划触发器管理器实例
+	listenHandler       webhook.ListenHandler          // 设备上行事件监听器
+	analysisTaskManager *task.AnalysisPlanTaskManager  // 计划触发器管理器实例
 }
 
 // NewAPI 创建并返回一个新的 API 实例
@@ -62,6 +63,7 @@ func NewAPI(cfg config.ServerConfig,
 	deviceTemplateRepository repository.DeviceTemplateRepository, // 添加设备模板仓库
 	planRepository repository.PlanRepository,
 	pigFarmService service.PigFarmService,
+	pigBatchService service.PigBatchService, // 添加猪批次服务
 	userActionLogRepository repository.UserActionLogRepository,
 	tokenService token.TokenService,
 	auditService audit.Service, // 注入审计服务
@@ -96,6 +98,8 @@ func NewAPI(cfg config.ServerConfig,
 		planController: plan.NewController(logger, planRepository, analysisTaskManager),
 		// 在 NewAPI 中初始化猪场管理控制器
 		pigFarmController: management.NewPigFarmController(logger, pigFarmService),
+		// 在 NewAPI 中初始化猪批次控制器
+		pigBatchController: management.NewPigBatchController(logger, pigBatchService),
 	}
 
 	api.setupRoutes() // 设置所有路由
@@ -221,6 +225,17 @@ func (a *API) setupRoutes() {
 		}
 		a.logger.Info("猪圈相关接口注册成功 (需要认证和审计)")
 
+		// 猪批次相关路由组
+		pigBatchGroup := authGroup.Group("/pig-batches")
+		{
+			pigBatchGroup.POST("", a.pigBatchController.CreatePigBatch)
+			pigBatchGroup.GET("", a.pigBatchController.ListPigBatches)
+			pigBatchGroup.GET("/:id", a.pigBatchController.GetPigBatch)
+			pigBatchGroup.PUT("/:id", a.pigBatchController.UpdatePigBatch)
+			pigBatchGroup.DELETE("/:id", a.pigBatchController.DeletePigBatch)
+		}
+		a.logger.Info("猪批次相关接口注册成功 (需要认证和审计)")
+
 	}
 }
 

internal/app/controller/management/pig_batch_controller.go

@@ -0,0 +1,190 @@
+package management
+
+import (
+	"errors"
+	"strconv"
+
+	"git.huangwc.com/pig/pig-farm-controller/internal/app/controller"
+	"git.huangwc.com/pig/pig-farm-controller/internal/app/dto"
+	"git.huangwc.com/pig/pig-farm-controller/internal/app/service"
+	"git.huangwc.com/pig/pig-farm-controller/internal/infra/logs"
+
+	"github.com/gin-gonic/gin"
+)
+
+// PigBatchController 负责处理猪批次相关的API请求
+type PigBatchController struct {
+	logger  *logs.Logger
+	service service.PigBatchService
+}
+
+// NewPigBatchController 创建一个新的 PigBatchController 实例
+func NewPigBatchController(logger *logs.Logger, service service.PigBatchService) *PigBatchController {
+	return &PigBatchController{
+		logger:  logger,
+		service: service,
+	}
+}
+
+// CreatePigBatch godoc
+// @Summary      创建猪批次
+// @Description  创建一个新的猪批次
+// @Tags         猪批次管理
+// @Accept       json
+// @Produce      json
+// @Param        body body dto.PigBatchCreateDTO true "猪批次信息"
+// @Success      201 {object} controller.Response{data=dto.PigBatchResponseDTO} "创建成功"
+// @Failure      400 {object} controller.Response "请求参数错误"
+// @Failure      500 {object} controller.Response "内部服务器错误"
+// @Router       /api/v1/pig-batches [post]
+func (c *PigBatchController) CreatePigBatch(ctx *gin.Context) {
+	const action = "创建猪批次"
+	var req dto.PigBatchCreateDTO
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的请求体", action, "请求体绑定失败", req)
+		return
+	}
+
+	respDTO, err := c.service.CreatePigBatch(&req)
+	if err != nil {
+		c.logger.Errorf("%s: 业务逻辑失败: %v", action, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeInternalError, "创建猪批次失败", action, "业务逻辑失败", req)
+		return
+	}
+
+	controller.SendSuccessWithAudit(ctx, controller.CodeCreated, "创建成功", respDTO, action, "创建成功", respDTO)
+}
+
+// GetPigBatch godoc
+// @Summary      获取单个猪批次
+// @Description  根据ID获取单个猪批次信息
+// @Tags         猪批次管理
+// @Produce      json
+// @Param        id path int true "猪批次ID"
+// @Success      200 {object} controller.Response{data=dto.PigBatchResponseDTO} "获取成功"
+// @Failure      400 {object} controller.Response "无效的ID格式"
+// @Failure      404 {object} controller.Response "猪批次不存在"
+// @Failure      500 {object} controller.Response "内部服务器错误"
+// @Router       /api/v1/pig-batches/{id} [get]
+func (c *PigBatchController) GetPigBatch(ctx *gin.Context) {
+	const action = "获取猪批次"
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 32)
+	if err != nil {
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的ID格式", action, "ID格式错误", ctx.Param("id"))
+		return
+	}
+
+	respDTO, err := c.service.GetPigBatch(uint(id))
+	if err != nil {
+		if errors.Is(err, service.ErrPigBatchNotFound) {
+			controller.SendErrorWithAudit(ctx, controller.CodeNotFound, "猪批次不存在", action, "猪批次不存在", id)
+			return
+		}
+		c.logger.Errorf("%s: 业务逻辑失败: %v", action, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeInternalError, "获取猪批次失败", action, "业务逻辑失败", id)
+		return
+	}
+
+	controller.SendSuccessWithAudit(ctx, controller.CodeSuccess, "获取成功", respDTO, action, "获取成功", respDTO)
+}
+
+// UpdatePigBatch godoc
+// @Summary      更新猪批次
+// @Description  更新一个已存在的猪批次信息
+// @Tags         猪批次管理
+// @Accept       json
+// @Produce      json
+// @Param        id path int true "猪批次ID"
+// @Param        body body dto.PigBatchUpdateDTO true "猪批次信息"
+// @Success      200 {object} controller.Response{data=dto.PigBatchResponseDTO} "更新成功"
+// @Failure      400 {object} controller.Response "请求参数错误或无效的ID格式"
+// @Failure      404 {object} controller.Response "猪批次不存在"
+// @Failure      500 {object} controller.Response "内部服务器错误"
+// @Router       /api/v1/pig-batches/{id} [put]
+func (c *PigBatchController) UpdatePigBatch(ctx *gin.Context) {
+	const action = "更新猪批次"
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 32)
+	if err != nil {
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的ID格式", action, "ID格式错误", ctx.Param("id"))
+		return
+	}
+
+	var req dto.PigBatchUpdateDTO
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的请求体", action, "请求体绑定失败", req)
+		return
+	}
+
+	respDTO, err := c.service.UpdatePigBatch(uint(id), &req)
+	if err != nil {
+		if errors.Is(err, service.ErrPigBatchNotFound) {
+			controller.SendErrorWithAudit(ctx, controller.CodeNotFound, "猪批次不存在", action, "猪批次不存在", id)
+			return
+		}
+		c.logger.Errorf("%s: 业务逻辑失败: %v", action, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeInternalError, "更新猪批次失败", action, "业务逻辑失败", req)
+		return
+	}
+
+	controller.SendSuccessWithAudit(ctx, controller.CodeSuccess, "更新成功", respDTO, action, "更新成功", respDTO)
+}
+
+// DeletePigBatch godoc
+// @Summary      删除猪批次
+// @Description  根据ID删除一个猪批次
+// @Tags         猪批次管理
+// @Produce      json
+// @Param        id path int true "猪批次ID"
+// @Success      200 {object} controller.Response "删除成功"
+// @Failure      400 {object} controller.Response "无效的ID格式"
+// @Failure      404 {object} controller.Response "猪批次不存在"
+// @Failure      500 {object} controller.Response "内部服务器错误"
+// @Router       /api/v1/pig-batches/{id} [delete]
+func (c *PigBatchController) DeletePigBatch(ctx *gin.Context) {
+	const action = "删除猪批次"
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 32)
+	if err != nil {
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的ID格式", action, "ID格式错误", ctx.Param("id"))
+		return
+	}
+
+	if err := c.service.DeletePigBatch(uint(id)); err != nil {
+		if errors.Is(err, service.ErrPigBatchNotFound) {
+			controller.SendErrorWithAudit(ctx, controller.CodeNotFound, "猪批次不存在", action, "猪批次不存在", id)
+			return
+		}
+		c.logger.Errorf("%s: 业务逻辑失败: %v", action, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeInternalError, "删除猪批次失败", action, "业务逻辑失败", id)
+		return
+	}
+
+	controller.SendSuccessWithAudit(ctx, controller.CodeSuccess, "删除成功", nil, action, "删除成功", id)
+}
+
+// ListPigBatches godoc
+// @Summary      获取猪批次列表
+// @Description  获取所有猪批次的列表，支持按活跃状态筛选
+// @Tags         猪批次管理
+// @Produce      json
+// @Param        is_active query bool false "是否活跃 (true/false)"
+// @Success      200 {object} controller.Response{data=[]dto.PigBatchResponseDTO} "获取成功"
+// @Failure      500 {object} controller.Response "内部服务器错误"
+// @Router       /api/v1/pig-batches [get]
+func (c *PigBatchController) ListPigBatches(ctx *gin.Context) {
+	const action = "获取猪批次列表"
+	var query dto.PigBatchQueryDTO
+	// ShouldBindQuery 会自动处理 URL 查询参数，例如 ?is_active=true
+	if err := ctx.ShouldBindQuery(&query); err != nil {
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的查询参数", action, "查询参数绑定失败", nil)
+		return
+	}
+
+	respDTOs, err := c.service.ListPigBatches(query.IsActive)
+	if err != nil {
+		c.logger.Errorf("%s: 业务逻辑失败: %v", action, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeInternalError, "获取猪批次列表失败", action, "业务逻辑失败", nil)
+		return
+	}
+
+	controller.SendSuccessWithAudit(ctx, controller.CodeSuccess, "获取成功", respDTOs, action, "获取成功", respDTOs)
+}

internal/app/dto/pig_batch_dto.go

@@ -0,0 +1,45 @@
+package dto
+
+import (
+	"time"
+
+	"git.huangwc.com/pig/pig-farm-controller/internal/infra/models" // 导入 models 包以使用 PigBatchOriginType 和 PigBatchStatus
+)
+
+// PigBatchCreateDTO 定义了创建猪批次的请求结构
+type PigBatchCreateDTO struct {
+	BatchNumber  string                    `json:"batch_number" binding:"required"`        // 批次编号，必填
+	OriginType   models.PigBatchOriginType `json:"origin_type" binding:"required"`         // 批次来源，必填
+	StartDate    time.Time                 `json:"start_date" binding:"required"`          // 批次开始日期，必填
+	InitialCount int                       `json:"initial_count" binding:"required,min=1"` // 初始数量，必填，最小为1
+	Status       models.PigBatchStatus     `json:"status" binding:"required"`              // 批次状态，必填
+}
+
+// PigBatchUpdateDTO 定义了更新猪批次的请求结构
+type PigBatchUpdateDTO struct {
+	BatchNumber  *string                    `json:"batch_number"`  // 批次编号，可选
+	OriginType   *models.PigBatchOriginType `json:"origin_type"`   // 批次来源，可选
+	StartDate    *time.Time                 `json:"start_date"`    // 批次开始日期，可选
+	EndDate      *time.Time                 `json:"end_date"`      // 批次结束日期，可选
+	InitialCount *int                       `json:"initial_count"` // 初始数量，可选
+	Status       *models.PigBatchStatus     `json:"status"`        // 批次状态，可选
+}
+
+// PigBatchQueryDTO 定义了查询猪批次的请求结构
+type PigBatchQueryDTO struct {
+	IsActive *bool `json:"is_active" form:"is_active"` // 是否活跃，可选，用于URL查询参数
+}
+
+// PigBatchResponseDTO 定义了猪批次信息的响应结构
+type PigBatchResponseDTO struct {
+	ID           uint                      `json:"id"`            // 批次ID
+	BatchNumber  string                    `json:"batch_number"`  // 批次编号
+	OriginType   models.PigBatchOriginType `json:"origin_type"`   // 批次来源
+	StartDate    time.Time                 `json:"start_date"`    // 批次开始日期
+	EndDate      time.Time                 `json:"end_date"`      // 批次结束日期
+	InitialCount int                       `json:"initial_count"` // 初始数量
+	Status       models.PigBatchStatus     `json:"status"`        // 批次状态
+	IsActive     bool                      `json:"is_active"`     // 是否活跃
+	CreateTime   time.Time                 `json:"create_time"`   // 创建时间
+	UpdateTime   time.Time                 `json:"update_time"`   // 更新时间
+}

internal/app/service/pig_batch_service.go

@@ -0,0 +1,176 @@
+package service
+
+import (
+	"errors"
+
+	"git.huangwc.com/pig/pig-farm-controller/internal/app/dto"
+	"git.huangwc.com/pig/pig-farm-controller/internal/infra/logs"
+	"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
+	"git.huangwc.com/pig/pig-farm-controller/internal/infra/repository"
+
+	"gorm.io/gorm"
+)
+
+var (
+	ErrPigBatchNotFound = errors.New("指定的猪批次不存在")
+	ErrPigBatchActive   = errors.New("活跃的猪批次不能被删除") // 新增错误：活跃的猪批次不能被删除
+)
+
+// PigBatchService 提供了猪批次管理的业务逻辑
+type PigBatchService interface {
+	CreatePigBatch(dto *dto.PigBatchCreateDTO) (*dto.PigBatchResponseDTO, error)
+	GetPigBatch(id uint) (*dto.PigBatchResponseDTO, error)
+	UpdatePigBatch(id uint, dto *dto.PigBatchUpdateDTO) (*dto.PigBatchResponseDTO, error)
+	DeletePigBatch(id uint) error
+	ListPigBatches(isActive *bool) ([]*dto.PigBatchResponseDTO, error)
+}
+
+type pigBatchService struct {
+	logger *logs.Logger
+	repo   repository.PigBatchRepository
+}
+
+// NewPigBatchService 创建一个新的 PigBatchService 实例
+func NewPigBatchService(repo repository.PigBatchRepository, logger *logs.Logger) PigBatchService {
+	return &pigBatchService{
+		logger: logger,
+		repo:   repo,
+	}
+}
+
+// toPigBatchResponseDTO 将 models.PigBatch 转换为 dto.PigBatchResponseDTO
+func (s *pigBatchService) toPigBatchResponseDTO(batch *models.PigBatch) *dto.PigBatchResponseDTO {
+	if batch == nil {
+		return nil
+	}
+	return &dto.PigBatchResponseDTO{
+		ID:           batch.ID,
+		BatchNumber:  batch.BatchNumber,
+		OriginType:   batch.OriginType,
+		StartDate:    batch.StartDate,
+		EndDate:      batch.EndDate,
+		InitialCount: batch.InitialCount,
+		Status:       batch.Status,
+		IsActive:     batch.IsActive(), // 使用模型自带的 IsActive 方法
+		CreateTime:   batch.CreatedAt,
+		UpdateTime:   batch.UpdatedAt,
+	}
+}
+
+// CreatePigBatch 处理创建猪批次的业务逻辑
+func (s *pigBatchService) CreatePigBatch(dto *dto.PigBatchCreateDTO) (*dto.PigBatchResponseDTO, error) {
+	batch := &models.PigBatch{
+		BatchNumber:  dto.BatchNumber,
+		OriginType:   dto.OriginType,
+		StartDate:    dto.StartDate,
+		InitialCount: dto.InitialCount,
+		Status:       dto.Status,
+	}
+
+	createdBatch, err := s.repo.CreatePigBatch(batch)
+	if err != nil {
+		s.logger.Errorf("创建猪批次失败: %v", err)
+		return nil, err
+	}
+
+	return s.toPigBatchResponseDTO(createdBatch), nil
+}
+
+// GetPigBatch 处理获取单个猪批次的业务逻辑
+func (s *pigBatchService) GetPigBatch(id uint) (*dto.PigBatchResponseDTO, error) {
+	batch, err := s.repo.GetPigBatchByID(id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, ErrPigBatchNotFound
+		}
+		s.logger.Errorf("获取猪批次失败，ID: %d, 错误: %v", id, err)
+		return nil, err
+	}
+
+	return s.toPigBatchResponseDTO(batch), nil
+}
+
+// UpdatePigBatch 处理更新猪批次的业务逻辑
+func (s *pigBatchService) UpdatePigBatch(id uint, dto *dto.PigBatchUpdateDTO) (*dto.PigBatchResponseDTO, error) {
+	existingBatch, err := s.repo.GetPigBatchByID(id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, ErrPigBatchNotFound
+		}
+		s.logger.Errorf("更新猪批次失败，获取原批次信息错误，ID: %d, 错误: %v", id, err)
+		return nil, err
+	}
+
+	// 根据 DTO 中的非空字段更新模型
+	if dto.BatchNumber != nil {
+		existingBatch.BatchNumber = *dto.BatchNumber
+	}
+	if dto.OriginType != nil {
+		existingBatch.OriginType = *dto.OriginType
+	}
+	if dto.StartDate != nil {
+		existingBatch.StartDate = *dto.StartDate
+	}
+	if dto.EndDate != nil {
+		existingBatch.EndDate = *dto.EndDate
+	}
+	if dto.InitialCount != nil {
+		existingBatch.InitialCount = *dto.InitialCount
+	}
+	if dto.Status != nil {
+		existingBatch.Status = *dto.Status
+	}
+
+	updatedBatch, err := s.repo.UpdatePigBatch(existingBatch)
+	if err != nil {
+		s.logger.Errorf("更新猪批次失败，ID: %d, 错误: %v", id, err)
+		return nil, err
+	}
+
+	return s.toPigBatchResponseDTO(updatedBatch), nil
+}
+
+// DeletePigBatch 处理删除猪批次的业务逻辑
+func (s *pigBatchService) DeletePigBatch(id uint) error {
+	// 1. 获取猪批次信息
+	batch, err := s.repo.GetPigBatchByID(id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return ErrPigBatchNotFound
+		}
+		s.logger.Errorf("删除猪批次失败，获取批次信息错误，ID: %d, 错误: %v", id, err)
+		return err
+	}
+
+	// 2. 检查猪批次是否活跃
+	if batch.IsActive() {
+		return ErrPigBatchActive // 如果活跃，则不允许删除
+	}
+
+	// 3. 执行删除操作
+	err = s.repo.DeletePigBatch(id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) || errors.New("未找到要删除的猪批次").Error() == err.Error() {
+			return ErrPigBatchNotFound
+		}
+		s.logger.Errorf("删除猪批次失败，ID: %d, 错误: %v", id, err)
+		return err
+	}
+	return nil
+}
+
+// ListPigBatches 处理批量查询猪批次的业务逻辑
+func (s *pigBatchService) ListPigBatches(isActive *bool) ([]*dto.PigBatchResponseDTO, error) {
+	batches, err := s.repo.ListPigBatches(isActive)
+	if err != nil {
+		s.logger.Errorf("批量查询猪批次失败，错误: %v", err)
+		return nil, err
+	}
+
+	var responseDTOs []*dto.PigBatchResponseDTO
+	for _, batch := range batches {
+		responseDTOs = append(responseDTOs, s.toPigBatchResponseDTO(batch))
+	}
+
+	return responseDTOs, nil
+}

internal/core/application.go

@@ -72,9 +72,11 @@ func NewApplication(configPath string) (*Application, error) {
 	deviceCommandLogRepo := repository.NewGormDeviceCommandLogRepository(storage.GetDB())
 	pendingCollectionRepo := repository.NewGormPendingCollectionRepository(storage.GetDB())
 	userActionLogRepo := repository.NewGormUserActionLogRepository(storage.GetDB())
+	pigBatchRepo := repository.NewGormPigBatchRepository(storage.GetDB())
 
 	// --- 业务逻辑处理器初始化 ---
 	pigFarmService := service.NewPigFarmService(pigFarmRepo, logger)
+	pigBatchService := service.NewPigBatchService(pigBatchRepo, logger)
 
 	// 初始化审计服务
 	auditService := audit.NewService(userActionLogRepo, logger)
@@ -121,6 +123,7 @@ func NewApplication(configPath string) (*Application, error) {
 		deviceTemplateRepo,
 		planRepo,
 		pigFarmService,
+		pigBatchService,
 		userActionLogRepo,
 		tokenService,
 		auditService,

internal/infra/repository/pig_batch_repository.go

@@ -0,0 +1,89 @@
+package repository
+
+import (
+	"errors"
+
+	"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
+	"gorm.io/gorm"
+)
+
+// PigBatchRepository 定义了与猪批次相关的数据库操作接口
+type PigBatchRepository interface {
+	CreatePigBatch(batch *models.PigBatch) (*models.PigBatch, error)
+	GetPigBatchByID(id uint) (*models.PigBatch, error)
+	UpdatePigBatch(batch *models.PigBatch) (*models.PigBatch, error)
+	DeletePigBatch(id uint) error
+	ListPigBatches(isActive *bool) ([]*models.PigBatch, error)
+}
+
+// gormPigBatchRepository 是 PigBatchRepository 的 GORM 实现
+type gormPigBatchRepository struct {
+	db *gorm.DB
+}
+
+// NewGormPigBatchRepository 创建一个新的 PigBatchRepository GORM 实现实例
+func NewGormPigBatchRepository(db *gorm.DB) PigBatchRepository {
+	return &gormPigBatchRepository{db: db}
+}
+
+// CreatePigBatch 创建一个新的猪批次
+func (r *gormPigBatchRepository) CreatePigBatch(batch *models.PigBatch) (*models.PigBatch, error) {
+	if err := r.db.Create(batch).Error; err != nil {
+		return nil, err
+	}
+	return batch, nil
+}
+
+// GetPigBatchByID 根据ID获取单个猪批次
+func (r *gormPigBatchRepository) GetPigBatchByID(id uint) (*models.PigBatch, error) {
+	var batch models.PigBatch
+	if err := r.db.First(&batch, id).Error; err != nil {
+		return nil, err
+	}
+	return &batch, nil
+}
+
+// UpdatePigBatch 更新一个猪批次
+func (r *gormPigBatchRepository) UpdatePigBatch(batch *models.PigBatch) (*models.PigBatch, error) {
+	result := r.db.Model(&models.PigBatch{}).Where("id = ?", batch.ID).Updates(batch)
+	if result.Error != nil {
+		return nil, result.Error
+	}
+	if result.RowsAffected == 0 {
+		return nil, errors.New("未找到要更新的猪批次或数据未改变") // 明确返回错误，而不是 gorm.ErrRecordNotFound
+	}
+	return batch, nil
+}
+
+// DeletePigBatch 根据ID删除一个猪批次 (GORM 会执行软删除)
+func (r *gormPigBatchRepository) DeletePigBatch(id uint) error {
+	result := r.db.Delete(&models.PigBatch{}, id)
+	if result.Error != nil {
+		return result.Error
+	}
+	if result.RowsAffected == 0 {
+		return errors.New("未找到要删除的猪批次") // 明确返回错误
+	}
+	return nil
+}
+
+// ListPigBatches 批量查询猪批次，支持根据 IsActive 筛选
+func (r *gormPigBatchRepository) ListPigBatches(isActive *bool) ([]*models.PigBatch, error) {
+	var batches []*models.PigBatch
+	query := r.db.Model(&models.PigBatch{})
+
+	if isActive != nil {
+		if *isActive {
+			// 查询活跃的批次：状态不是已出售或已归档
+			query = query.Where("status NOT IN (?) ", []models.PigBatchStatus{models.BatchStatusSold, models.BatchStatusArchived})
+		} else {
+			// 查询非活跃的批次：状态是已出售或已归档
+			query = query.Where("status IN (?) ", []models.PigBatchStatus{models.BatchStatusSold, models.BatchStatusArchived})
+		}
+	}
+
+	if err := query.Find(&batches).Error; err != nil {
+		return nil, err
+	}
+	return batches, nil
+}