定义对应model

internal/infra/models/farm_asset.go

@@ -0,0 +1,39 @@
+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
+	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
+}
+
+// PenStatus 定义了猪栏的当前状态
+type PenStatus string
+
+const (
+	PenStatusEmpty      PenStatus = "空闲"
+	PenStatusOccupied   PenStatus = "占用"
+	PenStatusSickPen    PenStatus = "病猪栏"
+	PenStatusRecovering PenStatus = "康复栏"
+	PenStatusCleaning   PenStatus = "清洗消毒"
+	PenStatusUnderMaint PenStatus = "维修中"
+)
+
+// 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
+	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"`
+	Capacity   int       `gorm:"not null;comment:设计容量 (头)"`
+	Status     PenStatus `gorm:"not null;index;comment:猪栏当前状态"`
+}