删除原有食物逻辑和模型
新增原料和营养价值表和原料库存日志和营养表定义
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package models
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import (
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"time"
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)
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/*
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饲料和饲喂相关的模型
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*/
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// RawMaterial 代表饲料的原料。
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// 建议：所有重量单位统一存储 (例如, 全部使用 'g')，便于计算和避免转换错误。
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type RawMaterial struct {
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Model
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Name string `gorm:"size:100;unique;not null;comment:原料名称"`
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Description string `gorm:"size:255;comment:描述"`
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Quantity float32 `gorm:"not null;comment:库存总量, 单位: g"`
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}
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func (RawMaterial) TableName() string {
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return "raw_materials"
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}
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// RawMaterialPurchase 记录了原料的每一次采购。
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type RawMaterialPurchase struct {
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Model
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RawMaterialID uint32 `gorm:"not null;index;comment:关联的原料ID"`
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RawMaterial RawMaterial `gorm:"foreignKey:RawMaterialID"`
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Supplier string `gorm:"size:100;comment:供应商"`
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Amount float32 `gorm:"not null;comment:采购数量, 单位: g"`
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UnitPrice float32 `gorm:"comment:单价"`
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TotalPrice float32 `gorm:"comment:总价"`
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PurchaseDate time.Time `gorm:"primaryKey;comment:采购日期"`
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CreatedAt time.Time
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}
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func (RawMaterialPurchase) TableName() string {
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return "raw_material_purchases"
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}
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// StockLogSourceType 定义了库存日志来源的类型
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type StockLogSourceType string
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const (
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StockLogSourcePurchase StockLogSourceType = "采购入库"
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StockLogSourceFeeding StockLogSourceType = "饲喂出库"
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StockLogSourceDeteriorate StockLogSourceType = "变质出库"
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StockLogSourceSale StockLogSourceType = "售卖出库"
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StockLogSourceMiscellaneous StockLogSourceType = "杂用领取"
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StockLogSourceManual StockLogSourceType = "手动盘点"
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)
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// RawMaterialStockLog 记录了原料库存的所有变动，提供了完整的追溯链。
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type RawMaterialStockLog struct {
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Model
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RawMaterialID uint32 `gorm:"not null;index;comment:关联的原料ID"`
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ChangeAmount float32 `gorm:"not null;comment:变动数量, 正数为入库, 负数为出库"`
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SourceType StockLogSourceType `gorm:"size:50;not null;index;comment:库存变动来源类型"`
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SourceID uint32 `gorm:"not null;index;comment:来源记录的ID (如 RawMaterialPurchase.ID 或 FeedUsageRecord.ID)"`
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HappenedAt time.Time `gorm:"primaryKey;comment:业务发生时间"`
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Remarks string `gorm:"comment:备注, 如主动领取的理由等"`
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}
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func (RawMaterialStockLog) TableName() string {
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return "raw_material_stock_logs"
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}
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// FeedFormula 代表饲料配方。
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// 对于没有配方的外购饲料，可以将其视为一种特殊的 RawMaterial, 并为其创建一个仅包含它自己的 FeedFormula。
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type FeedFormula struct {
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Model
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Name string `gorm:"size:100;unique;not null;comment:配方名称"`
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Description string `gorm:"size:255;comment:描述"`
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Components []FeedFormulaComponent `gorm:"foreignKey:FeedFormulaID"`
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}
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func (FeedFormula) TableName() string {
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return "feed_formulas"
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}
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// FeedFormulaComponent 代表配方中的一种原料及其占比。
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type FeedFormulaComponent struct {
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Model
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FeedFormulaID uint32 `gorm:"not null;index;comment:外键到 FeedFormula"`
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RawMaterialID uint32 `gorm:"not null;index;comment:外键到 RawMaterial"`
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RawMaterial RawMaterial `gorm:"foreignKey:RawMaterialID"`
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Percentage float32 `gorm:"not null;comment:该原料在配方中的百分比 (0-1.0)"`
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}
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func (FeedFormulaComponent) TableName() string {
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return "feed_formula_components"
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}
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// FeedUsageRecord 代表饲料使用记录。
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// 应用层逻辑：当一条使用记录被创建时，应根据其使用的 FeedFormula,
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// 计算出每种 RawMaterial 的消耗量，并在 RawMaterialStockLog 中创建对应的出库记录。
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type FeedUsageRecord struct {
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Model
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PenID uint32 `gorm:"not null;index;comment:关联的猪栏ID"`
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Pen Pen `gorm:"foreignKey:PenID"`
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FeedFormulaID uint32 `gorm:"not null;index;comment:使用的饲料配方ID"`
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FeedFormula FeedFormula `gorm:"foreignKey:FeedFormulaID"`
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Amount float32 `gorm:"not null;comment:使用数量, 单位: g"`
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RecordedAt time.Time `gorm:"primaryKey;comment:记录时间"`
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OperatorID uint32 `gorm:"not null;comment:操作员"`
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Remarks string `gorm:"comment:备注, 如 '例行喂料, 弱猪补料' 等"`
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}
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func (FeedUsageRecord) TableName() string {
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return "feed_usage_records"
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}
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@@ -63,11 +63,9 @@ func GetAllModels() []interface{} {
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// Feed Models
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&RawMaterial{},
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&RawMaterialPurchase{},
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&Nutrient{},
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&RawMaterialNutrient{},
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&RawMaterialStockLog{},
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&FeedFormula{},
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&FeedFormulaComponent{},
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&FeedUsageRecord{},
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// Medication Models
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&Medication{},
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92
internal/infra/models/raw_material.go
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92
internal/infra/models/raw_material.go
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@@ -0,0 +1,92 @@
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package models
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import (
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"time"
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)
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// StockLogSourceType 定义了库存日志来源的类型
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type StockLogSourceType string
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const (
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StockLogSourcePurchase StockLogSourceType = "采购入库"
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StockLogSourceFeeding StockLogSourceType = "饲喂出库"
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StockLogSourceDeteriorate StockLogSourceType = "变质出库"
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StockLogSourceSale StockLogSourceType = "售卖出库"
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StockLogSourceMiscellaneous StockLogSourceType = "杂用领取"
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StockLogSourceManual StockLogSourceType = "手动盘点"
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StockLogSourceFermentStart StockLogSourceType = "发酵出库" // 原料投入发酵，从库存中扣除
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StockLogSourceFermentEnd StockLogSourceType = "发酵入库" // 发酵料产出，作为新原料计入库存
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)
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// NutrientType 定义了营养素的分类，用于配方优化和成本控制。
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type NutrientType string
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const (
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PositiveNutrient NutrientType = "正面营养" // 希望在配方中最大化的营养素，如蛋白质、能量
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NegativeNutrient NutrientType = "负面营养" // 需要控制上限的营养素，如粗纤维、霉菌毒素
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)
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// RawMaterial 代表一种原料的静态定义，是系统中的原料字典。
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type RawMaterial struct {
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Model
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Name string `gorm:"size:100;unique;not null;comment:原料名称"`
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Description string `gorm:"size:255;comment:描述"`
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// Quantity 是当前库存的快照值，用于提供高性能的库存查询。
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// 注意：此字段的值必须在数据库事务中与 RawMaterialStockLog 同步更新，以保证数据一致性。
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Quantity float32 `gorm:"not null;default:0;comment:当前库存快照, 单位: g"`
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}
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func (RawMaterial) TableName() string {
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return "raw_materials"
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}
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// Nutrient 代表一种营养素的静态定义，是系统中的营养素字典。
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// 注意：本系统强制统一营养单位，不再单独设置Unit字段。
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// 约定：宏量营养素(粗蛋白等)单位为百分比(%)，微量元素(氨基酸等)单位为毫克/千克(mg/kg)。
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type Nutrient struct {
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Model
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Name string `gorm:"size:100;unique;not null;comment:营养素名称"`
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Type NutrientType `gorm:"size:50;not null;comment:营养素类型 (正面营养/负面营养)"`
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Description string `gorm:"size:255;comment:描述"`
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}
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func (Nutrient) TableName() string {
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return "nutrients"
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}
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// RawMaterialNutrient 存储了特定原料的特定营养素的含量值。
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// 这是连接原料和营养素的“营养价值表”。
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// 注意：其唯一性由 postgres.go 中的部分唯一索引保证，以兼容软删除。
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type RawMaterialNutrient struct {
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Model
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RawMaterialID uint32 `gorm:"not null;comment:关联的原料ID"`
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RawMaterial RawMaterial `gorm:"foreignKey:RawMaterialID"`
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NutrientID uint32 `gorm:"not null;comment:关联的营养素ID"`
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Nutrient Nutrient `gorm:"foreignKey:NutrientID"`
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// Value 存储营养价值含量。单位遵循 Nutrient 表中定义的系统级约定。
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Value float32 `gorm:"not null;comment:营养价值含量"`
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}
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func (RawMaterialNutrient) TableName() string {
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return "raw_material_nutrients"
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}
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// RawMaterialStockLog 记录了原料库存的所有变动，提供了完整的追溯链。
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// 它是保证数据一致性和可审计性的核心。
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type RawMaterialStockLog struct {
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Model
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RawMaterialID uint32 `gorm:"not null;index;comment:关联的原料ID"`
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RawMaterial RawMaterial `gorm:"foreignKey:RawMaterialID"`
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ChangeAmount float32 `gorm:"not null;comment:变动数量, 正数为入库, 负数为出库, 单位: g"`
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// SourceType 告知 SourceID 关联的是哪种类型的业务单据。
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SourceType StockLogSourceType `gorm:"size:50;not null;index;comment:库存变动来源类型"`
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// SourceID 是一个多态外键，关联到触发此次变动的业务单据ID (如采购单ID)。
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// 对于无单据的业务(如手动盘点)，此字段可为NULL。
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SourceID *uint32 `gorm:"index;comment:来源业务单据的ID"`
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HappenedAt time.Time `gorm:"primaryKey;comment:业务发生时间"`
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Remarks string `gorm:"comment:备注"`
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}
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func (RawMaterialStockLog) TableName() string {
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return "raw_material_stock_logs"
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}
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