ListPigPurchases

internal/app/controller/monitor/monitor_controller.go

@@ -747,3 +747,49 @@ func (c *Controller) ListPigSickLogs(ctx *gin.Context) {
 	c.logger.Infof("%s: 成功, 获取到 %d 条记录, 总计 %d 条", actionType, len(data), total)
 	controller.SendSuccessWithAudit(ctx, controller.CodeSuccess, "获取病猪日志成功", resp, actionType, "获取病猪日志成功", req)
 }
+
+// ListPigPurchases godoc
+// @Summary      获取猪只采购记录列表
+// @Description  根据提供的过滤条件，分页获取猪只采购记录
+// @Tags         数据监控
+// @Security     BearerAuth
+// @Produce      json
+// @Param        query query dto.ListPigPurchaseRequest true "查询参数"
+// @Success      200 {object} controller.Response{data=dto.ListPigPurchaseResponse}
+// @Router       /api/v1/monitor/pig-purchases [get]
+func (c *Controller) ListPigPurchases(ctx *gin.Context) {
+	const actionType = "获取猪只采购记录列表"
+
+	var req dto.ListPigPurchaseRequest
+	if err := ctx.ShouldBindQuery(&req); err != nil {
+		c.logger.Errorf("%s: 参数绑定失败: %v", actionType, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的查询参数: "+err.Error(), actionType, "参数绑定失败", req)
+		return
+	}
+
+	opts := repository.PigPurchaseListOptions{
+		PigBatchID: req.PigBatchID,
+		Supplier:   req.Supplier,
+		OperatorID: req.OperatorID,
+		OrderBy:    req.OrderBy,
+		StartTime:  req.StartTime,
+		EndTime:    req.EndTime,
+	}
+
+	data, total, err := c.monitorService.ListPigPurchases(opts, req.Page, req.PageSize)
+	if err != nil {
+		if errors.Is(err, repository.ErrInvalidPagination) {
+			c.logger.Warnf("%s: 无效的分页参数: %v", actionType, err)
+			controller.SendErrorWithAudit(ctx, controller.CodeBadRequest, "无效的分页参数: "+err.Error(), actionType, "无效分页参数", req)
+			return
+		}
+
+		c.logger.Errorf("%s: 服务层查询失败: %v", actionType, err)
+		controller.SendErrorWithAudit(ctx, controller.CodeInternalError, "获取猪只采购记录失败: "+err.Error(), actionType, "服务层查询失败", req)
+		return
+	}
+
+	resp := dto.NewListPigPurchaseResponse(data, total, req.Page, req.PageSize)
+	c.logger.Infof("%s: 成功, 获取到 %d 条记录, 总计 %d 条", actionType, len(data), total)
+	controller.SendSuccessWithAudit(ctx, controller.CodeSuccess, "获取猪只采购记录成功", resp, actionType, "获取猪只采购记录成功", req)
+}

internal/app/dto/monitor_converter.go

@@ -2,6 +2,7 @@ package dto
 
 import (
 	"encoding/json"
+	"time"
 
 	"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
 )
@@ -423,3 +424,32 @@ func NewListPigSickLogResponse(data []models.PigSickLog, total int64, page, page
 		},
 	}
 }
+
+// NewListPigPurchaseResponse 从模型数据创建列表响应 DTO
+func NewListPigPurchaseResponse(data []models.PigPurchase, total int64, page, pageSize int) *ListPigPurchaseResponse {
+	dtos := make([]PigPurchaseDTO, len(data))
+	for i, item := range data {
+		dtos[i] = PigPurchaseDTO{
+			ID:           item.ID,
+			CreatedAt:    item.CreatedAt,
+			UpdatedAt:    item.UpdatedAt,
+			PigBatchID:   item.PigBatchID,
+			PurchaseDate: item.PurchaseDate,
+			Supplier:     item.Supplier,
+			Quantity:     item.Quantity,
+			UnitPrice:    item.UnitPrice,
+			TotalPrice:   item.TotalPrice,
+			Remarks:      item.Remarks,
+			OperatorID:   item.OperatorID,
+		}
+	}
+
+	return &ListPigPurchaseResponse{
+		List: dtos,
+		Pagination: PaginationDTO{
+			Total:    total,
+			Page:     page,
+			PageSize: pageSize,
+		},
+	}
+}

internal/app/dto/monitor_dto.go

@@ -536,3 +536,38 @@ type ListPigSickLogResponse struct {
 	List       []PigSickLogDTO `json:"list"`
 	Pagination PaginationDTO   `json:"pagination"`
 }
+
+// --- PigPurchase ---
+
+// ListPigPurchaseRequest 定义了获取猪只采购记录列表的请求参数
+type ListPigPurchaseRequest struct {
+	Page       int        `form:"page,default=1"`
+	PageSize   int        `form:"pageSize,default=10"`
+	PigBatchID *uint      `form:"pig_batch_id"`
+	Supplier   *string    `form:"supplier"`
+	OperatorID *uint      `form:"operator_id"`
+	StartTime  *time.Time `form:"start_time" time_format:"rfc3339"`
+	EndTime    *time.Time `form:"end_time" time_format:"rfc3339"`
+	OrderBy    string     `form:"order_by"`
+}
+
+// PigPurchaseDTO 是用于API响应的猪只采购记录结构
+type PigPurchaseDTO struct {
+	ID           uint      `json:"id"`
+	CreatedAt    time.Time `json:"created_at"`
+	UpdatedAt    time.Time `json:"updated_at"`
+	PigBatchID   uint      `json:"pig_batch_id"`
+	PurchaseDate time.Time `json:"purchase_date"`
+	Supplier     string    `json:"supplier"`
+	Quantity     int       `json:"quantity"`
+	UnitPrice    float64   `json:"unit_price"`
+	TotalPrice   float64   `json:"total_price"`
+	Remarks      string    `json:"remarks"`
+	OperatorID   uint      `json:"operator_id"`
+}
+
+// ListPigPurchaseResponse 是获取猪只采购记录列表的响应结构
+type ListPigPurchaseResponse struct {
+	List       []PigPurchaseDTO `json:"list"`
+	Pagination PaginationDTO    `json:"pagination"`
+}

internal/app/service/monitor_service.go

@@ -18,6 +18,7 @@ type MonitorService struct {
 	pigBatchLogRepo       repository.PigBatchLogRepository
 	pigTransferLogRepo    repository.PigTransferLogRepository
 	pigSickLogRepo        repository.PigSickLogRepository
+	pigTradeRepo          repository.PigTradeRepository
 }
 
 // NewMonitorService 创建一个新的 MonitorService 实例
@@ -33,6 +34,7 @@ func NewMonitorService(
 	pigBatchLogRepo repository.PigBatchLogRepository,
 	pigTransferLogRepo repository.PigTransferLogRepository,
 	pigSickLogRepo repository.PigSickLogRepository,
+	pigTradeRepo repository.PigTradeRepository,
 ) *MonitorService {
 	return &MonitorService{
 		sensorDataRepo:        sensorDataRepo,
@@ -46,6 +48,7 @@ func NewMonitorService(
 		pigBatchLogRepo:       pigBatchLogRepo,
 		pigTransferLogRepo:    pigTransferLogRepo,
 		pigSickLogRepo:        pigSickLogRepo,
+		pigTradeRepo:          pigTradeRepo,
 	}
 }
 
@@ -123,3 +126,8 @@ func (s *MonitorService) ListPigTransferLogs(opts repository.PigTransferLogListO
 func (s *MonitorService) ListPigSickLogs(opts repository.PigSickLogListOptions, page, pageSize int) ([]models.PigSickLog, int64, error) {
 	return s.pigSickLogRepo.ListPigSickLogs(opts, page, pageSize)
 }
+
+// ListPigPurchases 负责处理查询猪只采购记录列表的业务逻辑
+func (s *MonitorService) ListPigPurchases(opts repository.PigPurchaseListOptions, page, pageSize int) ([]models.PigPurchase, int64, error) {
+	return s.pigTradeRepo.ListPigPurchases(opts, page, pageSize)
+}

internal/infra/repository/pig_trade_repository.go

@@ -1,10 +1,22 @@
 package repository
 
 import (
+	"time"
+
 	"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
 	"gorm.io/gorm"
 )
 
+// PigPurchaseListOptions 定义了查询猪只采购记录时的可选参数
+type PigPurchaseListOptions struct {
+	PigBatchID *uint
+	Supplier   *string
+	OperatorID *uint
+	StartTime  *time.Time // 基于 purchase_date 字段
+	EndTime    *time.Time // 基于 purchase_date 字段
+	OrderBy    string     // 例如 "purchase_date desc"
+}
+
 // PigTradeRepository 定义了猪只交易数据持久化的接口。
 // 领域服务通过此接口与数据层交互，实现解耦。
 type PigTradeRepository interface {
@@ -13,6 +25,9 @@ type PigTradeRepository interface {
 
 	// CreatePigPurchaseTx 在数据库中创建一条猪只采购记录。
 	CreatePigPurchaseTx(tx *gorm.DB, purchase *models.PigPurchase) error
+
+	// ListPigPurchases 支持分页和过滤的猪只采购记录列表查询
+	ListPigPurchases(opts PigPurchaseListOptions, page, pageSize int) ([]models.PigPurchase, int64, error)
 }
 
 // gormPigTradeRepository 是 PigTradeRepository 接口的 GORM 实现。
@@ -34,3 +49,46 @@ func (r *gormPigTradeRepository) CreatePigSaleTx(tx *gorm.DB, sale *models.PigSa
 func (r *gormPigTradeRepository) CreatePigPurchaseTx(tx *gorm.DB, purchase *models.PigPurchase) error {
 	return tx.Create(purchase).Error
 }
+
+// ListPigPurchases 实现了分页和过滤查询猪只采购记录的功能
+func (r *gormPigTradeRepository) ListPigPurchases(opts PigPurchaseListOptions, page, pageSize int) ([]models.PigPurchase, int64, error) {
+	if page <= 0 || pageSize <= 0 {
+		return nil, 0, ErrInvalidPagination
+	}
+
+	var results []models.PigPurchase
+	var total int64
+
+	query := r.db.Model(&models.PigPurchase{})
+
+	if opts.PigBatchID != nil {
+		query = query.Where("pig_batch_id = ?", *opts.PigBatchID)
+	}
+	if opts.Supplier != nil {
+		query = query.Where("supplier LIKE ?", "%"+*opts.Supplier+"%")
+	}
+	if opts.OperatorID != nil {
+		query = query.Where("operator_id = ?", *opts.OperatorID)
+	}
+	if opts.StartTime != nil {
+		query = query.Where("purchase_date >= ?", *opts.StartTime)
+	}
+	if opts.EndTime != nil {
+		query = query.Where("purchase_date <= ?", *opts.EndTime)
+	}
+
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	orderBy := "purchase_date DESC"
+	if opts.OrderBy != "" {
+		orderBy = opts.OrderBy
+	}
+	query = query.Order(orderBy)
+
+	offset := (page - 1) * pageSize
+	err := query.Limit(pageSize).Offset(offset).Find(&results).Error
+
+	return results, total, err
+}