109 lines
3.8 KiB
Go
109 lines
3.8 KiB
Go
package models
|
|
|
|
import (
|
|
"time"
|
|
|
|
"gorm.io/gorm"
|
|
)
|
|
|
|
/*
|
|
和猪只、猪群本身相关的模型
|
|
*/
|
|
|
|
// PigBatchStatus 定义了猪批次所处的不同阶段或状态
|
|
type PigBatchStatus string
|
|
|
|
const (
|
|
BatchStatusWeaning PigBatchStatus = "保育" // 从断奶到保育结束
|
|
BatchStatusGrowing PigBatchStatus = "生长" // 生长育肥阶段
|
|
BatchStatusFinishing PigBatchStatus = "育肥" // 最后的育肥阶段
|
|
BatchStatusForSale PigBatchStatus = "待售" // 达到出栏标准
|
|
BatchStatusSold PigBatchStatus = "已出售"
|
|
BatchStatusArchived PigBatchStatus = "已归档" // 批次结束（如全群淘汰等）
|
|
)
|
|
|
|
// PigBatchOriginType 定义了猪批次的来源
|
|
type PigBatchOriginType string
|
|
|
|
const (
|
|
OriginTypeSelfFarrowed PigBatchOriginType = "自繁"
|
|
OriginTypePurchased PigBatchOriginType = "外购"
|
|
)
|
|
|
|
// PigBatch 是猪批次的核心模型，代表了一群被共同管理的猪
|
|
type PigBatch struct {
|
|
gorm.Model
|
|
BatchNumber string `gorm:"size:50;not null;uniqueIndex;comment:批次编号,如 2024-W25-A01"`
|
|
OriginType PigBatchOriginType `gorm:"size:20;not null;comment:批次来源 (自繁, 外购)"`
|
|
StartDate time.Time `gorm:"not null;comment:批次开始日期 (如转入日或购买日)"`
|
|
EndDate time.Time `gorm:"not null;comment:批次结束日期 (全部淘汰或售出)"`
|
|
InitialCount int `gorm:"not null;comment:初始数量"`
|
|
Status PigBatchStatus `gorm:"size:20;not null;index;comment:批次状态"`
|
|
}
|
|
|
|
func (PigBatch) TableName() string {
|
|
return "pig_batches"
|
|
}
|
|
|
|
// IsActive 判断猪批次是否处于活跃状态
|
|
func (pb PigBatch) IsActive() bool {
|
|
return pb.Status != BatchStatusSold && pb.Status != BatchStatusArchived
|
|
}
|
|
|
|
// LogChangeType 定义了猪批次数量变更的类型
|
|
type LogChangeType string
|
|
|
|
const (
|
|
ChangeTypeDeath LogChangeType = "死亡"
|
|
ChangeTypeCull LogChangeType = "淘汰"
|
|
ChangeTypeSale LogChangeType = "销售"
|
|
ChangeTypeBuy LogChangeType = "购买"
|
|
ChangeTypeTransferIn LogChangeType = "转入"
|
|
ChangeTypeTransferOut LogChangeType = "转出"
|
|
ChangeTypeCorrection LogChangeType = "盘点校正"
|
|
)
|
|
|
|
// PigBatchLog 记录了猪批次数量或状态的每一次变更
|
|
type PigBatchLog struct {
|
|
gorm.Model
|
|
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"`
|
|
Reason string `gorm:"size:255;comment:变更原因描述"`
|
|
BeforeCount int `gorm:"not null;comment:变更前总数"`
|
|
AfterCount int `gorm:"not null;comment:变更后总数"`
|
|
OperatorID uint `gorm:"comment:操作员ID"`
|
|
HappenedAt time.Time `gorm:"primaryKey;comment:事件发生时间"`
|
|
}
|
|
|
|
func (PigBatchLog) TableName() string {
|
|
return "pig_batch_logs"
|
|
}
|
|
|
|
// WeighingBatch 记录了一次批次称重的信息
|
|
type WeighingBatch struct {
|
|
gorm.Model
|
|
WeighingTime time.Time `gorm:"primaryKey;comment:称重时间"`
|
|
Description string `gorm:"size:255;comment:批次称重描述"`
|
|
PigBatchID uint `gorm:"not null;index;comment:关联的猪批次ID"`
|
|
}
|
|
|
|
func (WeighingBatch) TableName() string {
|
|
return "weighing_batches"
|
|
}
|
|
|
|
// WeighingRecord 记录了单次称重信息
|
|
type WeighingRecord struct {
|
|
gorm.Model
|
|
Weight float64 `gorm:"not null;comment:单只猪重量 (kg)"`
|
|
WeighingBatchID uint `gorm:"not null;index;comment:关联的批次称重ID"`
|
|
PenID uint `gorm:"not null;index;comment:所在猪圈ID"`
|
|
OperatorID uint `gorm:"not null;comment:操作员ID"`
|
|
Remark string `gorm:"size:255;comment:备注"`
|
|
WeighingTime time.Time `gorm:"primaryKey;comment:称重时间"`
|
|
}
|
|
|
|
func (WeighingRecord) TableName() string {
|
|
return "weighing_records"
|
|
}
|