CODEWITHSUNDEEP
iosobjective-cuitableviewparse-platform
BlueBear
BlueBear

Reputation: 7639

PFQueryTableViewController should not load any objects until user interaction happens?

I am using a PFQueryTableViewController that should only load objects after a user has pressed a button. The problem is lying in the method - (PFQuery *)queryForTable.

Here is my code:

- (PFQuery *)queryForTable
{
    if (self.searchText) {
        PFQuery *titleQuery = [PFQuery queryWithClassName:@"photo"];
        [titleQuery whereKey:@"titleKey" containsString:self.searchText];

        PFQuery *descriptionQuery = [PFQuery queryWithClassName:@"photo"];
        [descriptionQuery whereKey:@"descriptionKey" containsString:self.searchText];

        PFQuery *searchQuery = [PFQuery orQueryWithSubqueries:@[titleQuery, descriptionQuery]];

        return stringSearchQuery;
    }

    return nil;
}

The problem is that I manually call - (void)loadObjects at some other point when a user decides to. By returning nil in this method the PFQueryTableView just leaves the loading indicator on indefinitely and user interaction is disabled.

What do I need to return in order for the table view to just be blank and then after the user interaction will load?

Upvotes: 1

Views: 263

Answers (1)

Marius Waldal
Marius Waldal

Reputation: 9942

Instead of checking whether searchText exists, try defaulting it to something that will never occur in the database, i.e. a dummy string like "@@@@@@@ Dummy string. Will never occur in database @@@@@@@".

This way, the query will be performed but not return any results - which should leave the tableview empty. Then, when the user enters a search string and taps the button, the queryForTable code is executed with real search string.

Upvotes: 2

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