Files
junhong_cmp_fiber/internal/exporter/iot_card_scene.go
huang 60debb7505
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2026-04-27 09:47:03 +08:00

99 lines
2.3 KiB
Go

package exporter
import (
"context"
"strconv"
"gorm.io/gorm"
"github.com/break/junhong_cmp_fiber/internal/model"
"github.com/break/junhong_cmp_fiber/pkg/constants"
)
// IotCardSceneStrategy IoT 卡导出场景策略。
type IotCardSceneStrategy struct {
db *gorm.DB
}
// NewIotCardSceneStrategy 创建 IoT 卡场景策略。
func NewIotCardSceneStrategy(db *gorm.DB) *IotCardSceneStrategy {
return &IotCardSceneStrategy{db: db}
}
// Scene 场景编码。
func (s *IotCardSceneStrategy) Scene() string {
return constants.ExportTaskSceneIotCard
}
// Headers 导出表头。
func (s *IotCardSceneStrategy) Headers() []string {
return []string{"ID", "ICCID", "MSISDN", "虚拟号", "运营商名称", "状态", "店铺ID", "创建时间"}
}
// NextShardBoundary 获取下一段分片边界。
func (s *IotCardSceneStrategy) NextShardBoundary(ctx context.Context, task *model.ExportTask, afterID uint64, limit int) (*ShardBoundary, error) {
if limit <= 0 {
limit = constants.ExportDefaultShardSize
}
var ids []uint64
query := s.db.WithContext(ctx).
Model(&model.IotCard{}).
Where("id > ?", afterID).
Order("id ASC").
Limit(limit)
query = applyShopScopeForTask(query, task)
if err := query.Pluck("id", &ids).Error; err != nil {
return nil, err
}
if len(ids) == 0 {
return nil, nil
}
return &ShardBoundary{
StartID: afterID,
EndID: ids[len(ids)-1],
RowCount: len(ids),
}, nil
}
// QueryRows 查询分片内数据行。
func (s *IotCardSceneStrategy) QueryRows(ctx context.Context, task *model.ExportTask, startID, endID uint64) ([][]string, error) {
if endID == 0 {
return [][]string{}, nil
}
var cards []model.IotCard
query := s.db.WithContext(ctx).
Model(&model.IotCard{}).
Where("id > ? AND id <= ?", startID, endID).
Order("id ASC")
query = applyShopScopeForTask(query, task)
if err := query.Find(&cards).Error; err != nil {
return nil, err
}
rows := make([][]string, 0, len(cards))
for _, item := range cards {
shopID := ""
if item.ShopID != nil {
shopID = strconv.FormatUint(uint64(*item.ShopID), 10)
}
rows = append(rows, []string{
strconv.FormatUint(uint64(item.ID), 10),
item.ICCID,
item.MSISDN,
item.VirtualNo,
item.CarrierName,
strconv.Itoa(item.Status),
shopID,
item.CreatedAt.Format("2006-01-02 15:04:05"),
})
}
return rows, nil
}