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