104 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			104 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| package repository
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| 
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| import (
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| 	"time"
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| 
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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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| 
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| // PigTransferLogListOptions 定义了查询猪只迁移日志时的可选参数
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| type PigTransferLogListOptions struct {
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| 	PigBatchID    *uint
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| 	PenID         *uint
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| 	TransferType  *models.PigTransferType // 迁移类型
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| 	OperatorID    *uint
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| 	CorrelationID *string
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| 	StartTime     *time.Time // 基于 transfer_time 字段
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| 	EndTime       *time.Time // 基于 transfer_time 字段
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| 	OrderBy       string     // 例如 "transfer_time desc"
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| }
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| 
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| // PigTransferLogRepository 定义了猪只迁移日志数据持久化的接口。
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| type PigTransferLogRepository interface {
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| 	// CreatePigTransferLog 在数据库中创建一条猪只迁移日志记录。
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| 	CreatePigTransferLog(tx *gorm.DB, log *models.PigTransferLog) error
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| 
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| 	// GetLogsForPenSince 获取指定猪栏自特定时间点以来的所有迁移日志,按时间倒序排列。
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| 	GetLogsForPenSince(tx *gorm.DB, penID uint, since time.Time) ([]*models.PigTransferLog, error)
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| 
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| 	// ListPigTransferLogs 支持分页和过滤的猪只迁移日志列表查询
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| 	ListPigTransferLogs(opts PigTransferLogListOptions, page, pageSize int) ([]models.PigTransferLog, int64, error)
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| }
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| 
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| // gormPigTransferLogRepository 是 PigTransferLogRepository 接口的 GORM 实现。
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| type gormPigTransferLogRepository struct {
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| 	db *gorm.DB
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| }
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| 
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| // NewGormPigTransferLogRepository 创建一个新的 PigTransferLogRepository GORM 实现实例。
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| func NewGormPigTransferLogRepository(db *gorm.DB) PigTransferLogRepository {
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| 	return &gormPigTransferLogRepository{db: db}
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| }
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| 
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| // CreatePigTransferLog 实现了在数据库中创建猪只迁移日志记录的逻辑。
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| func (r *gormPigTransferLogRepository) CreatePigTransferLog(tx *gorm.DB, log *models.PigTransferLog) error {
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| 	return tx.Create(log).Error
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| }
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| 
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| // GetLogsForPenSince 实现了获取猪栏自特定时间点以来所有迁移日志的逻辑。
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| func (r *gormPigTransferLogRepository) GetLogsForPenSince(tx *gorm.DB, penID uint, since time.Time) ([]*models.PigTransferLog, error) {
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| 	var logs []*models.PigTransferLog
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| 	err := tx.Where("pen_id = ? AND transfer_time >= ?", penID, since).Order("transfer_time DESC").Find(&logs).Error
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| 	return logs, err
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| }
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| 
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| // ListPigTransferLogs 实现了分页和过滤查询猪只迁移日志的功能
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| func (r *gormPigTransferLogRepository) ListPigTransferLogs(opts PigTransferLogListOptions, page, pageSize int) ([]models.PigTransferLog, int64, error) {
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| 	if page <= 0 || pageSize <= 0 {
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| 		return nil, 0, ErrInvalidPagination
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| 	}
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| 
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| 	var results []models.PigTransferLog
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| 	var total int64
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| 
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| 	query := r.db.Model(&models.PigTransferLog{})
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| 
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| 	if opts.PigBatchID != nil {
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| 		query = query.Where("pig_batch_id = ?", *opts.PigBatchID)
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| 	}
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| 	if opts.PenID != nil {
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| 		query = query.Where("pen_id = ?", *opts.PenID)
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| 	}
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| 	if opts.TransferType != nil {
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| 		query = query.Where("type = ?", *opts.TransferType)
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| 	}
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| 	if opts.OperatorID != nil {
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| 		query = query.Where("operator_id = ?", *opts.OperatorID)
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| 	}
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| 	if opts.CorrelationID != nil {
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| 		query = query.Where("correlation_id = ?", *opts.CorrelationID)
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| 	}
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| 	if opts.StartTime != nil {
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| 		query = query.Where("transfer_time >= ?", *opts.StartTime)
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| 	}
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| 	if opts.EndTime != nil {
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| 		query = query.Where("transfer_time <= ?", *opts.EndTime)
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| 	}
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| 
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| 	if err := query.Count(&total).Error; err != nil {
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| 		return nil, 0, err
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| 	}
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| 
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| 	orderBy := "transfer_time DESC"
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| 	if opts.OrderBy != "" {
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| 		orderBy = opts.OrderBy
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| 	}
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| 	query = query.Order(orderBy)
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| 
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| 	offset := (page - 1) * pageSize
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| 	err := query.Limit(pageSize).Offset(offset).Find(&results).Error
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| 
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| 	return results, total, err
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| }
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