ListFeedUsageRecords

internal/infra/repository/raw_material_repository.go

@@ -26,10 +26,21 @@ type RawMaterialStockLogListOptions struct {
 	OrderBy       string     // 例如 "happened_at asc"
 }
 
+// FeedUsageRecordListOptions 定义了查询饲料使用记录时的可选参数
+type FeedUsageRecordListOptions struct {
+	PenID         *uint
+	FeedFormulaID *uint
+	OperatorID    *uint
+	StartTime     *time.Time // 基于 recorded_at 字段
+	EndTime       *time.Time // 基于 recorded_at 字段
+	OrderBy       string     // 例如 "recorded_at asc"
+}
+
 // RawMaterialRepository 定义了与原料相关的数据库操作接口
 type RawMaterialRepository interface {
 	ListRawMaterialPurchases(opts RawMaterialPurchaseListOptions, page, pageSize int) ([]models.RawMaterialPurchase, int64, error)
 	ListRawMaterialStockLogs(opts RawMaterialStockLogListOptions, page, pageSize int) ([]models.RawMaterialStockLog, int64, error)
+	ListFeedUsageRecords(opts FeedUsageRecordListOptions, page, pageSize int) ([]models.FeedUsageRecord, int64, error)
 }
 
 // gormRawMaterialRepository 是 RawMaterialRepository 的 GORM 实现
@@ -124,3 +135,46 @@ func (r *gormRawMaterialRepository) ListRawMaterialStockLogs(opts RawMaterialSto
 
 	return results, total, err
 }
+
+// ListFeedUsageRecords 实现了分页和过滤查询饲料使用记录的功能
+func (r *gormRawMaterialRepository) ListFeedUsageRecords(opts FeedUsageRecordListOptions, page, pageSize int) ([]models.FeedUsageRecord, int64, error) {
+	if page <= 0 || pageSize <= 0 {
+		return nil, 0, ErrInvalidPagination
+	}
+
+	var results []models.FeedUsageRecord
+	var total int64
+
+	query := r.db.Model(&models.FeedUsageRecord{})
+
+	if opts.PenID != nil {
+		query = query.Where("pen_id = ?", *opts.PenID)
+	}
+	if opts.FeedFormulaID != nil {
+		query = query.Where("feed_formula_id = ?", *opts.FeedFormulaID)
+	}
+	if opts.OperatorID != nil {
+		query = query.Where("operator_id = ?", *opts.OperatorID)
+	}
+	if opts.StartTime != nil {
+		query = query.Where("recorded_at >= ?", *opts.StartTime)
+	}
+	if opts.EndTime != nil {
+		query = query.Where("recorded_at <= ?", *opts.EndTime)
+	}
+
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	orderBy := "recorded_at DESC"
+	if opts.OrderBy != "" {
+		orderBy = opts.OrderBy
+	}
+	query = query.Order(orderBy).Preload("Pen").Preload("FeedFormula")
+
+	offset := (page - 1) * pageSize
+	err := query.Limit(pageSize).Offset(offset).Find(&results).Error
+
+	return results, total, err
+}