实现 猪舍相关路由组 和 猪圈相关路由组

internal/infra/models/pig.go

@@ -44,6 +44,10 @@ type PigBatch struct {
 	Pens             []Pen              `gorm:"foreignKey:PigBatchID;comment:所在圈舍ID"`
 }
 
+func (PigBatch) TableName() string {
+	return "pig_batches"
+}
+
 // LogChangeType 定义了猪批次数量变更的类型
 type LogChangeType string
 
@@ -60,7 +64,7 @@ const (
 
 // PigBatchLog 记录了猪批次数量或状态的每一次变更
 type PigBatchLog struct {
-	gorm.Model
+	ID              uint          `gorm:"primaryKey"`
 	PigBatchID      uint          `gorm:"not null;index;comment:关联的猪批次ID"`
 	ChangeType      LogChangeType `gorm:"size:20;not null;comment:变更类型"`
 	ChangeCount     int           `gorm:"not null;comment:数量变化,负数表示减少"`
@@ -70,5 +74,12 @@ type PigBatchLog struct {
 	BeforeSickCount int           `gorm:"not null;comment:变更前病猪数"`
 	AfterSickCount  int           `gorm:"not null;comment:变更后病猪数"`
 	Operator        string        `gorm:"size:50;comment:操作员"`
-	HappenedAt      time.Time     `gorm:"not null;default:CURRENT_TIMESTAMP;comment:事件发生时间"`
+	HappenedAt      time.Time     `gorm:"primaryKey;comment:事件发生时间"`
+	CreatedAt       time.Time
+	UpdatedAt       time.Time
+	DeletedAt       gorm.DeletedAt `gorm:"index"`
+}
+
+func (PigBatchLog) TableName() string {
+	return "pig_batch_logs"
 }