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Add method to return list of changes since a previous token.

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This commit is contained in:
Andrew McMillan 2012-07-08 11:55:46 +12:00
parent c09ee6ff91
commit b90e3f291c
1 changed files with 42 additions and 0 deletions
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42
inc/WritableCollection.php
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@ -442,4 +442,46 @@ EOSQL;
}
/**
*
* @param unknown_type $some_old_token
*/
public function whatChangedSince( $some_old_token ) {
$params = array( ':collection_id' => $this->collection_id() );
if ( $some_old_token == 0 || empty($some_old_token) ) {
$sql = <<<EOSQL
SELECT calendar_item.*, caldav_data.*, addressbook_resource.*, 201 AS sync_status
FROM caldav_data
LEFT JOIN calendar_item USING (dav_id)
LEFT JOIN addressbook_resource USING (dav_id)
WHERE caldav_data.collection_id = :collection_id
ORDER BY caldav_data.collection_id, caldav_data.dav_id
EOSQL;
}
else {
$params[':sync_token'] = $some_old_token;
$sql = <<<EOSQL
SELECT calendar_item.*, caldav_data.*, addressbook_resource.*, sync_changes.*
FROM sync_changes
LEFT JOIN caldav_data USING (collection_id,dav_id)
LEFT JOIN calendar_item USING (collection_id,dav_id)
LEFT JOIN addressbook_resource USING (dav_id)
WHERE sync_changes.collection_id = :collection_id
AND sync_time >= (SELECT modification_time FROM sync_tokens WHERE sync_token = :sync_token)
ORDER BY sync_changes.collection_id, sync_changes.dav_id, sync_changes.sync_time
EOSQL;
}
$qry = new AwlQuery($sql, $params );
$changes = array();
if ( $qry->Exec() && $qry->rows() ) {
while( $change = $qry->Fetch() ) {
$changes[$change->uid] = $change;
}
}
return $changes;
}
}