Google Docs API list of documents and two folders with same name

Question

I use PHP to get a list of folders, and then documents from Google Docs (two API requests).

Getting a list of the folders, I can get their folderID, which is fine.

However, when getting a list of documents, it returns categories, and these only contain the name of the folder.

My problem exists because I have two folders with the same name, and my code is merging the documents from these, because they have the same name.

The function I use to get a list of the documents within the folder:

/**
 * Gets a list of 'internal' IDs of docs within a certain folder
 * @global Mixed $fileslist
 * @param String $folder
 * @return Array
 */
function getDocumentsInFolder($folder) {
    global $fileslist;

$docs = array();
foreach ($fileslist as $id => $files) {
    if (in_array($folder, $files['folders'])) {
        $docs[] = $id;
    }
}
return $docs;
}

And the arrays are:

    foreach ($list[$i]->category as $cat) {
        $folders[] = $cat->label;
    }
    $folderslist[$i] = array(
        'name' => $foldername,
        'authorname' => $authorname,
        'authoremail' => $authoremail,
        'lastupdated' => $lastupdated,
        'fid' => $fid
    );
    $fileslist[] = array(
        'name' => $name,
        'authorname' => $authorname,
        'authoremail' => $authoremail,
        'lastupdated' => $lastupdated,
        'folders' => $folders,
        'id' => $id,
        'type' => $list[$i]->extensionElements[0]->text,
    );

The XML the Google Docs API for the list of documents is @ http://code.google.com/apis/documents/docs/3.0/developers_guide_protocol.html#ListDocs (Note how the categories are just folder names).

Any ideas how to stop files appearing in all instances of that folder name, and just in their proper folder?

Answer 1

Fixed it :)

/**
 * Gets a list of 'internal' IDs of docs within a certain folder
 * @global Mixed $fileslist
 * @param ID $folder The internal ID of the folder
 * @return Array
 */
function getDocumentsInFolder($folder) {
    global $fileslist, $folderslist;
    // Work out the folder ID

    $fid = $folderslist[$folder]['fid'];
    $docs = array();
    foreach ($fileslist as $id => $files) {
        if ($files['fid'] == $fid) {
            $docs[] = $id;
        }
    }
    return $docs;
}

The document list returns:

 <link rel="http://schemas.google.com/docs/2007#parent" type="application/atom+xml" href="https://docs.google.com/feeds/default/private/full/folder%3A12345" title="AFolderName"/>

Which contains the folder ID, I was able to store this in the document list and then compare.