222 lines
9.1 KiB
Go
222 lines
9.1 KiB
Go
package repository
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import (
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"context"
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"errors"
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"fmt"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/logs"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
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"gorm.io/gorm"
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)
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// RawMaterialListOptions 定义了查询原料列表时的筛选条件
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type RawMaterialListOptions struct {
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Name *string
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NutrientName *string
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OrderBy string
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}
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// RawMaterialRepository 定义了与原料相关的数据库操作接口
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type RawMaterialRepository interface {
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CreateRawMaterial(ctx context.Context, rawMaterial *models.RawMaterial) error
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GetRawMaterialByID(ctx context.Context, id uint32) (*models.RawMaterial, error)
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GetRawMaterialByName(ctx context.Context, name string) (*models.RawMaterial, error)
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ListRawMaterials(ctx context.Context, opts RawMaterialListOptions, page, pageSize int) ([]models.RawMaterial, int64, error)
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UpdateRawMaterial(ctx context.Context, rawMaterial *models.RawMaterial) error
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DeleteRawMaterial(ctx context.Context, id uint32) error
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DeleteNutrientsByRawMaterialIDTx(ctx context.Context, db *gorm.DB, rawMaterialID uint32) error
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CreateBatchRawMaterialNutrientsTx(ctx context.Context, db *gorm.DB, nutrients []models.RawMaterialNutrient) error
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// 库存日志相关方法
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CreateRawMaterialStockLog(ctx context.Context, log *models.RawMaterialStockLog) error
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GetLatestRawMaterialStockLog(ctx context.Context, rawMaterialID uint32) (*models.RawMaterialStockLog, error)
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}
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// gormRawMaterialRepository 是 RawMaterialRepository 的 GORM 实现
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type gormRawMaterialRepository struct {
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ctx context.Context
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db *gorm.DB
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}
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// NewGormRawMaterialRepository 创建一个新的 RawMaterialRepository GORM 实现实例
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func NewGormRawMaterialRepository(ctx context.Context, db *gorm.DB) RawMaterialRepository {
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return &gormRawMaterialRepository{ctx: ctx, db: db}
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}
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// CreateRawMaterial 创建一个新的原料
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func (r *gormRawMaterialRepository) CreateRawMaterial(ctx context.Context, rawMaterial *models.RawMaterial) error {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "CreateRawMaterial")
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return r.db.WithContext(repoCtx).Create(rawMaterial).Error
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}
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// GetRawMaterialByID 根据ID获取单个原料，并预加载关联的营养素信息
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func (r *gormRawMaterialRepository) GetRawMaterialByID(ctx context.Context, id uint32) (*models.RawMaterial, error) {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "GetRawMaterialByID")
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var rawMaterial models.RawMaterial
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// 如果记录未找到，GORM 会返回 gorm.ErrRecordNotFound 错误
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if err := r.db.WithContext(repoCtx).Preload("RawMaterialNutrients.Nutrient").First(&rawMaterial, id).Error; err != nil {
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return nil, err
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}
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return &rawMaterial, nil
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}
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// GetRawMaterialByName 根据名称获取单个原料，并预加载关联的营养素信息
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func (r *gormRawMaterialRepository) GetRawMaterialByName(ctx context.Context, name string) (*models.RawMaterial, error) {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "GetRawMaterialByName")
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var rawMaterial models.RawMaterial
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// 如果记录未找到，GORM 会返回 gorm.ErrRecordNotFound 错误
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if err := r.db.WithContext(repoCtx).Preload("RawMaterialNutrients.Nutrient").Where("name = ?", name).First(&rawMaterial).Error; err != nil {
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return nil, err
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}
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return &rawMaterial, nil
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}
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// ListRawMaterials 列出所有原料（分页），支持按名称和营养名称筛选
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func (r *gormRawMaterialRepository) ListRawMaterials(ctx context.Context, opts RawMaterialListOptions, page, pageSize int) ([]models.RawMaterial, int64, error) {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "ListRawMaterials")
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var rawMaterials []models.RawMaterial
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var total int64
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db := r.db.WithContext(repoCtx).Model(&models.RawMaterial{})
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// 应用筛选条件
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if opts.Name != nil && *opts.Name != "" {
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db = db.Where("name LIKE ?", "%"+*opts.Name+"%")
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}
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// 如果传入了营养名称，则使用子查询进行筛选
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if opts.NutrientName != nil && *opts.NutrientName != "" {
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// 子查询：从 raw_material_nutrients 和 nutrients 表中找到所有包含该营养的 raw_material_id
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subQuery := r.db.Model(&models.RawMaterialNutrient{}).
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Select("raw_material_id").
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Joins("JOIN nutrients ON nutrients.id = raw_material_nutrients.nutrient_id").
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Where("nutrients.name LIKE ?", "%"+*opts.NutrientName+"%")
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db = db.Where("id IN (?)", subQuery)
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}
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// 首先计算总数
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if err := db.Count(&total).Error; err != nil {
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return nil, 0, err
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}
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// 然后应用排序、分页并获取数据
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if opts.OrderBy != "" {
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db = db.Order(opts.OrderBy)
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}
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offset := (page - 1) * pageSize
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if err := db.Preload("RawMaterialNutrients.Nutrient").Offset(offset).Limit(pageSize).Find(&rawMaterials).Error; err != nil {
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return nil, 0, err
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}
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return rawMaterials, total, nil
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}
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// UpdateRawMaterial 更新一个原料
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func (r *gormRawMaterialRepository) UpdateRawMaterial(ctx context.Context, rawMaterial *models.RawMaterial) error {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "UpdateRawMaterial")
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// 使用 map 更新以避免 GORM 的零值问题，并确保只更新指定字段
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updateData := map[string]interface{}{
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"name": rawMaterial.Name,
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"description": rawMaterial.Description,
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}
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result := r.db.WithContext(repoCtx).Model(&models.RawMaterial{}).Where("id = ?", rawMaterial.ID).Updates(updateData)
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if result.Error != nil {
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return result.Error
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}
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if result.RowsAffected == 0 {
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return fmt.Errorf("未找到要更新的原料，ID: %d", rawMaterial.ID)
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}
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return nil
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}
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// DeleteRawMaterial 根据ID删除一个原料，并级联软删除关联的 RawMaterialNutrient 和 RawMaterialStockLog 记录
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func (r *gormRawMaterialRepository) DeleteRawMaterial(ctx context.Context, id uint32) error {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "DeleteRawMaterial")
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return r.db.WithContext(repoCtx).Transaction(func(tx *gorm.DB) error {
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// 1. 查找 RawMaterial 记录，确保其存在
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var rawMaterial models.RawMaterial
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if err := tx.First(&rawMaterial, id).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return fmt.Errorf("未找到要删除的原料，ID: %d", id)
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}
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return fmt.Errorf("查询原料失败: %w", err)
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}
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// 2. 软删除所有关联的 RawMaterialNutrient 记录
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if err := tx.Where("raw_material_id = ?", id).Delete(&models.RawMaterialNutrient{}).Error; err != nil {
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return fmt.Errorf("软删除关联的原料营养素记录失败: %w", err)
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}
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// 3. 软删除所有关联的 RawMaterialStockLog 记录
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if err := tx.Where("raw_material_id = ?", id).Delete(&models.RawMaterialStockLog{}).Error; err != nil {
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return fmt.Errorf("软删除关联的原料库存日志记录失败: %w", err)
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}
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// 4. 软删除 RawMaterial 记录本身
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if err := tx.Delete(&rawMaterial).Error; err != nil {
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return fmt.Errorf("软删除原料失败: %w", err)
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}
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return nil
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})
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}
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// DeleteNutrientsByRawMaterialIDTx 在事务中软删除指定原料的所有营养成分
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func (r *gormRawMaterialRepository) DeleteNutrientsByRawMaterialIDTx(ctx context.Context, db *gorm.DB, rawMaterialID uint32) error {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "DeleteNutrientsByRawMaterialIDTx")
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tx := db.WithContext(repoCtx)
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if err := tx.Where("raw_material_id = ?", rawMaterialID).Delete(&models.RawMaterialNutrient{}).Error; err != nil {
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return fmt.Errorf("软删除原料营养成分失败: %w", err)
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}
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return nil
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}
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// CreateBatchRawMaterialNutrientsTx 在事务中批量创建原料营养成分
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func (r *gormRawMaterialRepository) CreateBatchRawMaterialNutrientsTx(ctx context.Context, db *gorm.DB, nutrients []models.RawMaterialNutrient) error {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "CreateBatchRawMaterialNutrientsTx")
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// 如果没有要创建的记录，直接返回成功，避免执行空的Create语句
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if len(nutrients) == 0 {
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return nil
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}
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// 确保每个营养都关联到正确的原料ID
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// 注意：这里假设传入的 nutrients 已经设置了正确的 RawMaterialID
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for i := range nutrients {
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if nutrients[i].RawMaterialID == 0 {
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return fmt.Errorf("创建原料营养时 RecipeID 不能为空")
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}
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}
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if err := db.WithContext(repoCtx).Create(&nutrients).Error; err != nil {
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return fmt.Errorf("批量创建原料营养成分失败: %w", err)
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}
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return nil
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}
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// CreateRawMaterialStockLog 创建一条新的原料库存日志
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func (r *gormRawMaterialRepository) CreateRawMaterialStockLog(ctx context.Context, log *models.RawMaterialStockLog) error {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "CreateRawMaterialStockLog")
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return r.db.WithContext(repoCtx).Create(log).Error
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}
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// GetLatestRawMaterialStockLog 获取指定原料的最新一条库存日志
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func (r *gormRawMaterialRepository) GetLatestRawMaterialStockLog(ctx context.Context, rawMaterialID uint32) (*models.RawMaterialStockLog, error) {
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repoCtx := logs.AddFuncName(ctx, r.ctx, "GetLatestRawMaterialStockLog")
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var latestLog models.RawMaterialStockLog
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err := r.db.WithContext(repoCtx).
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Where("raw_material_id = ?", rawMaterialID).
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Order("happened_at DESC, id DESC"). // 优先按时间降序，然后按ID降序确保唯一最新
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First(&latestLog).Error
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil // 如果没有日志记录，不视为错误，返回nil
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}
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return nil, err
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}
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return &latestLog, nil
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}
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