87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
package repository
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import (
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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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// MedicationLogListOptions 定义了查询用药记录时的可选参数
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type MedicationLogListOptions struct {
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PigBatchID *uint
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MedicationID *uint
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Reason *models.MedicationReasonType
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OperatorID *uint
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StartTime *time.Time
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EndTime *time.Time
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OrderBy string // 例如 "happened_at desc"
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}
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// MedicationLogRepository 定义了与群体用药日志模型相关的数据库操作接口。
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type MedicationLogRepository interface {
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CreateMedicationLog(log *models.MedicationLog) error
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ListMedicationLogs(opts MedicationLogListOptions, page, pageSize int) ([]models.MedicationLog, int64, error)
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}
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// gormMedicationLogRepository 是 MedicationLogRepository 接口的 GORM 实现。
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type gormMedicationLogRepository struct {
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db *gorm.DB
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}
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// NewGormMedicationLogRepository 创建一个新的 MedicationLogRepository GORM 实现实例。
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func NewGormMedicationLogRepository(db *gorm.DB) MedicationLogRepository {
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return &gormMedicationLogRepository{db: db}
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}
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// CreateMedicationLog 创建一条新的群体用药日志记录
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func (r *gormMedicationLogRepository) CreateMedicationLog(log *models.MedicationLog) error {
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return r.db.Create(log).Error
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}
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// ListMedicationLogs 实现了分页和过滤查询用药记录的功能
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func (r *gormMedicationLogRepository) ListMedicationLogs(opts MedicationLogListOptions, page, pageSize int) ([]models.MedicationLog, 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.MedicationLog
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var total int64
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query := r.db.Model(&models.MedicationLog{})
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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.MedicationID != nil {
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query = query.Where("medication_id = ?", *opts.MedicationID)
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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.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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