Question

I’m trying to find how to get a specified with range feed of cells (or
records) from a worksheet entry.

I found that, there is a solution for that
in “Google Data APIs .NET client library”

and in “Google Data API Python client library”

But can’t find how to do it with objective-c. Is it possible? If yes,
then how?
If not, then how to implement this opportunity & how hard is it to
do?
The reason i’m intrested is desire to reduce traffic among iPhone app
& Google.

Thanks in advance.

Answer 1

I’ve found the answer myself while investigated Gdata-objectivec-client headers.
So the solution is to make a GDataQuerySpreadsheet to worksheet with entry with pre-set number of properties: minimumRow, maximumRow, minimumColumn, maximumColumn.
It is also possible to use simply – (void)setRange:(NSString *)str;

Here’s a code example:

- (void) fetchWorksheet: (GDataEntryWorksheet*) worksheet {
    NSURL *cellsFeedURL = [[worksheet cellsLink] URL];
    if (cellsFeedURL) {
        GDataServiceTicket *ticket;
        GDataQuerySpreadsheet *query = [GDataQuerySpreadsheet spreadsheetQueryWithFeedURL: cellsFeedURL];
        [query setMinimumRow: 0];
        [query setMaximumRow: 2];
        [query setMinimumColumn: 0];
        [query setMaximumColumn: 2];
        [query setTitleQuery: @"myQuery"];

        ticket = [mService fetchFeedWithQuery:query
                                     delegate:self
                            didFinishSelector:@selector(fetchFeedOfCellsTicket:
                                                        finishedWithFeed:
                                                        error:)];
    }    
}

The only disadvantage of this is that resulting feed contains cells, but not records. And cells are considered deprecated (i’ve heard it). It would be better to fetch a table with records, and not worksheet with cells. But GData-objectivec-client doesn’t support it, unfortunately.

But it works. I’ve checked.