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Delete IPTV channel data when the channel is removed #986

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Dec 7, 2024
Merged

Delete IPTV channel data when the channel is removed #986

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16 changes: 16 additions & 0 deletions mythtv/programs/mythbackend/backendhousekeeper.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -204,6 +204,9 @@ void CleanupTask::CleanupChannelTables(void)
MSqlQuery query(MSqlQuery::InitCon());
MSqlQuery deleteQuery(MSqlQuery::InitCon());

// Delete all channels from the database that have already
// been deleted for at least one day and that are not referenced
// anymore by a recording.
query.prepare(QString("DELETE channel "
"FROM channel "
"LEFT JOIN recorded r "
Expand All @@ -219,6 +222,8 @@ void CleanupTask::CleanupChannelTables(void)
MythDB::DBError("CleanupTask::CleanupChannelTables "
"(channel table)", query);

// Delete all multiplexes from the database that are not
// referenced anymore by a channel.
query.prepare(QString("DELETE dtv_multiplex "
"FROM dtv_multiplex "
"LEFT JOIN channel c "
Expand All @@ -227,6 +232,17 @@ void CleanupTask::CleanupChannelTables(void)
if (!query.exec())
MythDB::DBError("CleanupTask::CleanupChannelTables "
"(dtv_multiplex table)", query);

// Delete all IPTV channel data extension records from the database
// when the channel it refers to does not exist anymore.
query.prepare(QString("DELETE iptv_channel "
"FROM iptv_channel "
"LEFT JOIN channel c "
" ON c.chanid = iptv_channel.chanid "
"WHERE c.chanid IS NULL"));
if (!query.exec())
MythDB::DBError("CleanupTask::CleanupChannelTables "
"(iptv_channel table)", query);
}

void CleanupTask::CleanupProgramListings(void)
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