uint/uint64全部改为uint32

internal/infra/models/farm_asset.go

@@ -1,16 +1,12 @@
 package models
 
-import (
-	"gorm.io/gorm"
-)
-
 /*
 	猪场固定资产相关模型
 */
 
 // PigHouse 定义了猪舍，是猪栏的集合
 type PigHouse struct {
-	gorm.Model
+	Model
 	Name        string `gorm:"size:100;not null;unique;comment:猪舍名称, 如 '育肥舍A栋'"`
 	Description string `gorm:"size:255;comment:描述信息"`
 	Pens        []Pen  `gorm:"foreignKey:HouseID"` // 一个猪舍包含多个猪栏
@@ -30,10 +26,10 @@ const (
 
 // Pen 是猪栏的物理实体模型, 是所有空间相关数据的“锚点”
 type Pen struct {
-	gorm.Model
+	Model
 	PenNumber  string    `gorm:"not null;comment:猪栏的唯一编号, 如 A-01"`
-	HouseID    uint      `gorm:"index;comment:所属猪舍ID"`
-	PigBatchID *uint     `gorm:"index;comment:关联的猪批次ID"`
+	HouseID    uint32    `gorm:"index;comment:所属猪舍ID"`
+	PigBatchID *uint32   `gorm:"index;comment:关联的猪批次ID"`
 	Capacity   int       `gorm:"not null;comment:设计容量 (头)"`
 	Status     PenStatus `gorm:"not null;index;comment:猪栏当前状态"`
 }