119 lines
3.7 KiB
Go
119 lines
3.7 KiB
Go
package repository
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import (
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"errors"
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"time"
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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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// PigSickLogListOptions 定义了查询病猪日志时的可选参数
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type PigSickLogListOptions struct {
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PigBatchID *uint
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PenID *uint
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Reason *models.PigBatchSickPigReasonType
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TreatmentLocation *models.PigBatchSickPigTreatmentLocation
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OperatorID *uint
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StartTime *time.Time // 基于 happened_at 字段
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EndTime *time.Time // 基于 happened_at 字段
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OrderBy string // 例如 "happened_at desc"
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}
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// PigSickLogRepository 定义了与病猪日志模型相关的数据库操作接口。
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type PigSickLogRepository interface {
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// CreatePigSickLog 创建一条新的病猪日志记录
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CreatePigSickLog(log *models.PigSickLog) error
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CreatePigSickLogTx(tx *gorm.DB, log *models.PigSickLog) error
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// GetLastLogByBatchTx 在事务中获取指定批次和猪栏的最新一条 PigSickLog 记录
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GetLastLogByBatchTx(tx *gorm.DB, batchID uint) (*models.PigSickLog, error)
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// ListPigSickLogs 支持分页和过滤的病猪日志列表查询
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ListPigSickLogs(opts PigSickLogListOptions, page, pageSize int) ([]models.PigSickLog, int64, error)
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}
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// gormPigSickLogRepository 是 PigSickLogRepository 接口的 GORM 实现。
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type gormPigSickLogRepository struct {
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db *gorm.DB
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}
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// NewGormPigSickLogRepository 创建一个新的 PigSickLogRepository GORM 实现实例。
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func NewGormPigSickLogRepository(db *gorm.DB) PigSickLogRepository {
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return &gormPigSickLogRepository{db: db}
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}
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// CreatePigSickLog 创建一条新的病猪日志记录
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func (r *gormPigSickLogRepository) CreatePigSickLog(log *models.PigSickLog) error {
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return r.CreatePigSickLogTx(r.db, log)
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}
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func (r *gormPigSickLogRepository) CreatePigSickLogTx(tx *gorm.DB, log *models.PigSickLog) error {
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return tx.Create(log).Error
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}
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// GetLastLogByBatchTx 在事务中获取指定批次和猪栏的最新一条 PigSickLog 记录
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func (r *gormPigSickLogRepository) GetLastLogByBatchTx(tx *gorm.DB, batchID uint) (*models.PigSickLog, error) {
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var lastLog models.PigSickLog
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err := tx.
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Where("pig_batch_id = ?", batchID).
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Order("happened_at DESC"). // 按时间降序排列
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First(&lastLog).Error // 获取第一条记录 (即最新一条)
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, gorm.ErrRecordNotFound // 明确返回记录未找到错误
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}
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return nil, err
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}
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return &lastLog, nil
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}
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// ListPigSickLogs 实现了分页和过滤查询病猪日志的功能
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func (r *gormPigSickLogRepository) ListPigSickLogs(opts PigSickLogListOptions, page, pageSize int) ([]models.PigSickLog, 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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var results []models.PigSickLog
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var total int64
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query := r.db.Model(&models.PigSickLog{})
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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.Reason != nil {
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query = query.Where("reason = ?", *opts.Reason)
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}
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if opts.TreatmentLocation != nil {
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query = query.Where("treatment_location = ?", *opts.TreatmentLocation)
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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.StartTime != nil {
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query = query.Where("happened_at >= ?", *opts.StartTime)
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}
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if opts.EndTime != nil {
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query = query.Where("happened_at <= ?", *opts.EndTime)
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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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orderBy := "happened_at 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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offset := (page - 1) * pageSize
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err := query.Limit(pageSize).Offset(offset).Find(&results).Error
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return results, total, err
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}
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