void CDataBaseTest::preparePlaylist() {
CCollection<CPlaylistItem>* playlist = 0;
playlist = new CCollection<CPlaylistItem>();
CCollection<CCollectionItem>* collection = m_session->getCollection(0);
for(int i=0; i < collection->size(); i += 2) {
CPlaylistItem* item = new CPlaylistItem(collection->getItem(i)->getHash());
playlist->insert( item, -1);
}
m_session->addPlaylistRev(playlist);
playlist = new CCollection<CPlaylistItem>();
for(int i=0; i < collection->size(); i++) {
CPlaylistItem* item = new CPlaylistItem(collection->getItem(i)->getHash());
playlist->insert( item, -1);
}
m_session->addPlaylistRev(playlist);
playlist = new CCollection<CPlaylistItem>();
for( int i=1; i < collection->size(); i += 2 ) {
CPlaylistItem* item = new CPlaylistItem(collection->getItem(i)->getHash());
playlist->insert( item, -1);
}
m_session->addPlaylistRev(playlist);
}
/**
* check for playlist entries not in collection. If any, remove them and create new playlist revision.
*/
void CStateDB::repairSession(CSession* session) {
CCollection<CCollectionItem>* collection = session->getCollection();
CCollection<CPlaylistItem>* playlist = session->getPlaylist();
CCollection<CPlaylistItem>* newPlaylist = new CCollection<CPlaylistItem>();
bool unknownItemInPlaylist = false;
for(int i=0; i < playlist->size(); i++) {
CPlaylistItem* plItem = new CPlaylistItem( *playlist->getItem(i) );
unsigned hash = plItem->getCollectionHash();
CCollectionItem* item = collection->getByHash(hash);
if( item == 0 ) {
unknownItemInPlaylist = true;
}
else {
newPlaylist->insert(plItem);
}
}
if( unknownItemInPlaylist ) {
session->addPlaylistRev( newPlaylist );
updatePlaylistRevsTable(session, session->getPlaylistRevision(), session->getPlaylistRevision());
}
else {
delete newPlaylist;
}
}
void CStateDB::restoreNextlists(CSession * const session) {
if(m_db == 0) throw(CApiMisuseException("Calling restoreNextlists(), but DB not opened."));
bool found;
int minRev = getIntValue("NextlistRevMin", found);
assert(found);
int maxRev = getIntValue("NextlistRevMax", found);
assert(found);
session->setMinNextlistRevision( minRev );
for(int rev = minRev; rev < maxRev; rev++) {
CCollection<CPlaylistItem>* nextlist = new CCollection<CPlaylistItem>(rev);
CPlaylistItem* item;
int pos = 0;
do {
item = getNextlistItemByPos(pos, rev);
pos++;
if(item) {
nextlist->insert(item);
}
} while(item != 0);
session->addNextlistRev(nextlist);
}
}
void CStateDB::restoreCollection(CSession * const session) {
if(m_db == 0) throw(CApiMisuseException("Calling restoreCollection(), but DB not opened."));
bool found;
int minRev = getIntValue("CollectionRevMin", found);
assert(found);
int maxRev = getIntValue("CollectionRevMax", found);
assert(found);
session->setMinCollectionRevision( minRev );
for(int rev = minRev; rev <= maxRev; rev++) {
CCollection<CCollectionItem>* collection = new CCollection<CCollectionItem>(rev);
CCollectionItem* item;
int pos = 0;
do {
item = getCollectionItemByPos(pos, rev);
pos++;
if(item) {
collection->insert(item);
}
} while(item != 0);
session->addCollectionRev(collection);
}
}
CCollection<CCollectionItem>* CStateDB::getCollectionRev(int rev) {
CCollection<CCollectionItem>* collection = new CCollection<CCollectionItem>();
CCollectionItem* item;
int pos = 0;
do {
item = getCollectionItemByPos(pos, rev);
pos++;
if(item) {
collection->insert(item);
}
} while(item != 0);
return collection;
}
