C++ CPVRChannel::UpdateFromClient方法代码示例

bool CPVRChannelGroupInternal::UpdateFromClient(const CPVRChannel &channel)
{
  CSingleLock lock(m_critSection);
  CPVRChannel *realChannel = (CPVRChannel *) GetByClient(channel.UniqueID(), channel.ClientID());
  if (realChannel != NULL)
    realChannel->UpdateFromClient(channel);
  else
    realChannel = new CPVRChannel(channel);

  return CPVRChannelGroup::AddToGroup(realChannel, 0, false);
}

bool CPVRChannelGroupInternal::UpdateChannel(const CPVRChannel &channel)
{
  CPVRChannel *updateChannel = (CPVRChannel *) GetByUniqueID(channel.UniqueID());

  if (!updateChannel)
  {
    updateChannel = new CPVRChannel(channel.IsRadio());
    PVRChannelGroupMember newMember = { updateChannel, 0 };
    push_back(newMember);
    updateChannel->SetUniqueID(channel.UniqueID());
  }
  updateChannel->UpdateFromClient(channel);

  return updateChannel->Persist(!m_bLoaded);
}

bool CPVRChannelGroupInternal::AddAndUpdateChannels(const CPVRChannelGroup &channels, bool bUseBackendChannelNumbers)
{
  bool bReturn(false);
  CSingleLock lock(m_critSection);

  /* go through the channel list and check for updated or new channels */
  for (unsigned int iChannelPtr = 0; iChannelPtr < channels.size(); iChannelPtr++)
  {
    PVRChannelGroupMember member = channels.at(iChannelPtr);
    if (!member.channel)
      continue;

    /* check whether this channel is present in this container */
    CPVRChannel *existingChannel = (CPVRChannel *) GetByClient(member.channel->UniqueID(), member.channel->ClientID());
    if (existingChannel)
    {
      /* if it's present, update the current tag */
      if (existingChannel->UpdateFromClient(*member.channel))
      {
        existingChannel->Persist(!m_bLoaded);

        bReturn = true;
        CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - updated %s channel '%s'",
            __FUNCTION__, m_bRadio ? "radio" : "TV", member.channel->ChannelName().c_str());
      }
    }
    else
    {
      /* new channel */
      CPVRChannel *newChannel = new CPVRChannel(*member.channel);

      /* insert the new channel in this group */
      int iChannelNumber = bUseBackendChannelNumbers ? member.channel->ClientChannelNumber() : 0;
      InsertInGroup(*newChannel, iChannelNumber, false);

      bReturn = true;
      CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - added %s channel '%s' at position %d",
          __FUNCTION__, m_bRadio ? "radio" : "TV", member.channel->ChannelName().c_str(), iChannelNumber);
    }
  }

  return bReturn;
}

bool CPVRChannelGroupInternal::UpdateGroupEntries(const CPVRChannelGroup &channels)
{
  bool bChanged = false;
  int iCurSize = size();

  CPVRChannelGroup *newChannels = new CPVRChannelGroup(m_bRadio);

  CPVRDatabase *database = g_PVRManager.GetTVDatabase();
  if (!database || !database->Open())
    return bChanged;

  /* go through the channel list and check for updated or new channels */
  for (unsigned int iChannelPtr = 0; iChannelPtr < channels.size(); iChannelPtr++)
  {
    const CPVRChannel *channel = channels.at(iChannelPtr).channel;

    /* check if this channel is present in this container */
    CPVRChannel *existingChannel = (CPVRChannel *) GetByClient(channel->UniqueID(), channel->ClientID());
    if (existingChannel)
    {
      /* if it's present, update the current tag */
      if (existingChannel->UpdateFromClient(*channel))
      {
        bChanged = true;

        CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - updated %s channel '%s'",
            __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
      }
    }
    else
    {
      /* new channel */
      CPVRChannel *newChannel = new CPVRChannel(m_bRadio);
      newChannel->SetUniqueID(channel->UniqueID(), false);
      newChannel->UpdateFromClient(*channel);
      newChannels->AddToGroup(newChannel);
      int iChannelNumber = iCurSize == 0 ? channel->ClientChannelNumber() : 0;
      InsertInGroup(newChannel, iChannelNumber, false);
      bChanged = true;

      CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - added %s channel '%s' at position %d",
          __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str(), iChannelNumber);
    }
  }

  /* persist changes */
  for (unsigned int iChannelPtr = 0; iChannelPtr < newChannels->size(); iChannelPtr++)
    ((CPVRChannel *) newChannels->GetByIndex(iChannelPtr))->Persist(false); /* write immediately to get a db id */
  delete newChannels;

  /* check for deleted channels */
  unsigned int iSize = size();
  for (unsigned int iChannelPtr = 0; iChannelPtr < iSize; iChannelPtr++)
  {
    CPVRChannel *channel = (CPVRChannel *) GetByIndex(iChannelPtr);
    if (!channel)
      continue;
    if (channels.GetByClient(channel->UniqueID(), channel->ClientID()) == NULL)
    {
      /* channel was not found */
      CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - deleted %s channel '%s'",
          __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());

      /* remove this channel from all non-system groups */
      ((CPVRChannelGroups *) g_PVRChannelGroups->Get(m_bRadio))->RemoveFromAllGroups(channel);

      delete at(iChannelPtr).channel;
      erase(begin() + iChannelPtr);
      iChannelPtr--;
      iSize--;
      bChanged = true;
    }
  }

  database->Close();

  /* try to find channel icons */
  SearchAndSetChannelIcons();
  CacheIcons();

  if (bChanged || HasChanges())
  {
    /* remove invalid channels */
    RemoveInvalidChannels();

    /* sort by client channel number if this is the first time */
    if (iCurSize == 0)
      SortByClientChannelNumber();

    /* renumber to make sure all channels have a channel number.
       new channels were added at the back, so they'll get the highest numbers */
    Renumber();

    return Persist();
  }
  else
  {
    return true;
  }
}

bool CPVRChannelGroupInternal::UpdateGroupEntries(CPVRChannelGroup *channels)
{
  CPVRDatabase *database = CPVRManager::Get()->GetTVDatabase();
  if(!database && !database->Open())
    return false;

  int iSize = size();
  for (int ptr = 0; ptr < iSize; ptr++)
  {
    CPVRChannel *channel = at(ptr).channel;

    /* ignore virtual channels */
    if (channel->IsVirtual())
      continue;

    /* check if this channel is still present */
    const CPVRChannel *existingChannel = channels->GetByUniqueID(channel->UniqueID());
    if (existingChannel)
    {
      /* if it's present, update the current tag */
      if (channel->UpdateFromClient(*existingChannel))
      {
        channel->Persist(true);
        CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - updated %s channel '%s'",
            __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
      }

      /* remove this tag from the temporary channel list */
      channels->RemoveByUniqueID(channel->UniqueID());
    }
    else
    {
      /* channel is no longer present */
      CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - removing %s channel '%s'",
          __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
      channel->Delete();
      erase(begin() + ptr);
      ptr--;
      iSize--;
    }
  }

  /* the temporary channel list only contains new channels now */
  for (unsigned int ptr = 0; ptr < channels->size(); ptr++)
  {
    CPVRChannel *channel = channels->at(ptr).channel;
    channel->Persist(true);

    PVRChannelGroupMember member = { channel, size() };
    push_back(member);

    CLog::Log(LOGINFO,"PVRChannelGroupInternal - %s - added %s channel '%s'",
        __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
  }

  /* post the queries generated by the update */
  database->CommitInsertQueries();

  database->Close();

  Renumber();

  return true;
}

bool CPVRChannels::Update(CPVRChannels *channels)
{
  /* the database has already been opened */
  CPVRDatabase *database = g_PVRManager.GetTVDatabase();

  int iSize = size();
  for (int ptr = 0; ptr < iSize; ptr++)
  {
    CPVRChannel *channel = at(ptr);

    /* ignore virtual channels */
    if (channel->IsVirtual())
      continue;

    /* check if this channel is still present */
    CPVRChannel *existingChannel = channels->GetByUniqueID(channel->UniqueID());
    if (existingChannel)
    {
      /* if it's present, update the current tag */
      if (channel->UpdateFromClient(*existingChannel))
      {
        channel->Persist(true);
        CLog::Log(LOGINFO,"%s - updated %s channel '%s'",
            __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
      }

      /* remove this tag from the temporary channel list */
      channels->RemoveByUniqueID(channel->UniqueID());
    }
    else
    {
      /* channel is no longer present */
      CLog::Log(LOGINFO,"%s - removing %s channel '%s'",
          __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
      database->RemoveChannel(*channel);
      erase(begin() + ptr);
      ptr--;
      iSize--;
    }
  }

  /* the temporary channel list only contains new channels now */
  for (unsigned int ptr = 0; ptr < channels->size(); ptr++)
  {
    CPVRChannel *channel = channels->at(ptr);
    channel->Persist(true);
    push_back(channel);

    CLog::Log(LOGINFO,"%s - added %s channel '%s'",
        __FUNCTION__, m_bRadio ? "radio" : "TV", channel->ChannelName().c_str());
  }

  /* post the queries generated by the update */
  database->CommitInsertQueries();

  /* recount hidden channels */
  m_iHiddenChannels = 0;
  for (unsigned int i = 0; i < size(); i++)
  {
    if (at(i)->IsHidden())
      m_iHiddenChannels++;
  }

  m_bIsSorted = false;
  return true;
}