视频会议保存
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112
backend/go-service/app/transcribe/dao/transcript_dao.go
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112
backend/go-service/app/transcribe/dao/transcript_dao.go
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// Package dao 提供 transcribe 模块的数据库访问操作
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package dao
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import (
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"context"
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"errors"
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"time"
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"github.com/echochat/backend/app/transcribe/model"
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"gorm.io/gorm"
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)
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// TranscriptDAO 转写记录数据访问对象(PostgreSQL 主库)
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type TranscriptDAO struct {
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db *gorm.DB
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}
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// NewTranscriptDAO 创建实例
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func NewTranscriptDAO(db *gorm.DB) *TranscriptDAO {
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return &TranscriptDAO{db: db}
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}
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// GetByRecordingID 按 recording_id 获取转写记录(不存在返回 nil, nil)
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//
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// 之所以 nil 不视为错误:调用方常见模式是"取不到 → 创建新行",避免 ErrRecordNotFound 包装
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func (d *TranscriptDAO) GetByRecordingID(ctx context.Context, recordingID int64) (*model.Transcript, error) {
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var t model.Transcript
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err := d.db.WithContext(ctx).
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Where("recording_id = ?", recordingID).
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First(&t).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
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}
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return nil, err
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}
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return &t, nil
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}
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// ListByRoomID 拉取一场会议下所有转写(按 recording_id 升序)
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// 用于会议详情页一次性带回多段录制的转写状态
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func (d *TranscriptDAO) ListByRoomID(ctx context.Context, roomID int64) ([]model.Transcript, error) {
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var list []model.Transcript
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err := d.db.WithContext(ctx).
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Where("room_id = ?", roomID).
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Order("recording_id ASC").
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Find(&list).Error
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return list, err
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}
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// Upsert 插入或更新(按 recording_id unique 索引)
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// 用于"重新转写"路径:保留同一行 ID,状态/文本就地刷新
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func (d *TranscriptDAO) Upsert(ctx context.Context, t *model.Transcript) error {
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existing, err := d.GetByRecordingID(ctx, t.RecordingID)
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if err != nil {
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return err
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}
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if existing == nil {
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return d.db.WithContext(ctx).Create(t).Error
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}
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t.ID = existing.ID
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return d.db.WithContext(ctx).Save(t).Error
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}
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// MarkRunning 把指定 transcript 置为 running 状态,并填 started_at = now
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//
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// 用于异步任务起跑时的状态翻转,保证后端重启时 running 行不会卡死
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// (配合 RescueStuckRunning 兜底)。
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func (d *TranscriptDAO) MarkRunning(ctx context.Context, id int64) error {
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now := time.Now()
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return d.db.WithContext(ctx).
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Model(&model.Transcript{}).
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Where("id = ?", id).
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Updates(map[string]any{
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"status": model.TranscriptStatusRunning,
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"started_at": now,
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"error_msg": "",
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}).Error
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}
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// MarkReady 转写成功
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func (d *TranscriptDAO) MarkReady(ctx context.Context, id int64, text, segments, language string, durationSec int) error {
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now := time.Now()
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return d.db.WithContext(ctx).
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Model(&model.Transcript{}).
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Where("id = ?", id).
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Updates(map[string]any{
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"status": model.TranscriptStatusReady,
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"text": text,
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"segments": segments,
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"language": language,
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"duration_sec": durationSec,
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"finished_at": now,
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"error_msg": "",
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}).Error
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}
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// MarkFailed 转写失败
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func (d *TranscriptDAO) MarkFailed(ctx context.Context, id int64, errorMsg string) error {
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now := time.Now()
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if len(errorMsg) > 500 {
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errorMsg = errorMsg[:500]
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}
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return d.db.WithContext(ctx).
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Model(&model.Transcript{}).
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Where("id = ?", id).
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Updates(map[string]any{
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"status": model.TranscriptStatusFailed,
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"error_msg": errorMsg,
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"finished_at": now,
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}).Error
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}
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