10 replies to this topic

[David DelMonte]

How do I sort a table in reverse sequence? I presume using this:

 

 

model.modelActions.sortSections = ^(SCTableViewModel *tableModel, NSMutableArray *sections)
{
// Rearrange the 'sections' mutable array here as you see fit
};
 

 

 

 

But how?? Thanks

Edited by David DelMonte, 23 January 2015 - 05:21 PM.

[wizgod]

Greetings Program!

 

I think this is what you:

 

objectsModel.modelActions.sortSections = ^(SCTableViewModel *tableModel, NSMutableArray *sections)
{
    // This is not the only way to sort, but probably the easiest when using STV
    SCDataFetchOptions *fetchOptions = [SCDataFetchOptions optionsWithSortKey:@"headerTitle" sortAscending:NO filterPredicate:nil];
	
    [fetchOptions sortMutableArray:sections];
};

 

Wg

Edited by wizgod, 24 January 2015 - 01:16 AM.

[David DelMonte]

hm.. thanks WG.. I only have one section, and don't know what it's called.. Is there another way? Thanks!!

[wizgod]

Sorry, when I saw the sortSections I thought you were sorting them in the table (for the sortSections, the sort key I found was the "headerTitle").

 

But for the rows in the section, I use sectionActions.didFetchItemsFromStore:

 

objectsModel.sectionActions.didFetchItemsFromStore = ^(SCArrayOfItemsSection *itemsSection, NSMutableArray *items)
{
	// This is not the only way to sort, but probably the easiest when using STV
	SCDataFetchOptions *fetchOptions = [SCDataFetchOptions optionsWithSortKey:@"name" sortAscending:NO filterPredicate:nil];

	[fetchOptions sortMutableArray:items];
};

 

Wg

Edited by wizgod, 24 January 2015 - 01:21 AM.

[David DelMonte]

Thanks for helping WG. I think I'm pushing an envelope here. The header cell is an SCCustomCell that is being used to expand/collapse a group. Each Custom Cell is an Expand/Collapse cell, for a year, and the "sub-cells" are records for that year. I appreciate any ideas..

 

Bigger question.. Did you pour through STV source code to understand how to do this? I need to learn how you and Ozie know so much, so that I can learn it too.

[wizgod]

I'm trying to replicate what you're doing; I have the custom E/C header cell added in modelActions.didAddSection. Where are you setting the values in the header field and how are you determining what the section header values are going to be?

 

Wg

[David DelMonte]

WG. Here is a dump of part of ViewDidLoad -- I'll leave it up for a few days.. Thanks again for looking and let me know if you see something odd..

 

//Section Expand/collapse

 

model.modelActions.didAddSection = ^(SCTableViewModel *tableModel, SCTableViewSection *section, NSUInteger sectionIndex)

{

SCExpandCollapseCell *cell = [SCExpandCollapseCell cellWithExpandText:section.headerTitle collapseText:section.headerTitle ownerSectionExpanded:YES];

 

cell.backgroundColor = [colors objectAtIndex:decade];

cell.textLabel.font = [UIFont fontWithName:@"HelveticaNeue" size:20];

counter = section.cellCount;

section.expandCollapseCell = cell;

 

UIImage * image = [ UIImage imageNamed:@"downTriangle.png" ] ;

UIControl * c = [ [ UIControl alloc ] initWithFrameCGRect){ CGPointZero, image.size } ] ;

 

c.layer.contents = (id)image.CGImage ;

 

cell.accessoryView = c ;

 

};

 

 

 

 

//YearNumber

 

model.cellActions.willConfigure = ^(SCTableViewCell *cell, NSIndexPath *indexPath) {

 

// Create yearCount preparation dictionary

 

 

 

DDMemories *memory = (DDMemories *)cell.boundObject;

NSString *tempYear = [memory valueForKey:@"year"];

 

NSNumberFormatter * f = [[NSNumberFormatter alloc] init];

[f setNumberStyle:NSNumberFormatterDecimalStyle];

 

NSNumber * myNumber = [f numberFromString:tempYear];

 

[memory setValue:myNumber forKey:@"yearNumber"];

 

self.tableView.separatorColor = [UIColor blackColor];

 

 

};

 

//  yearCount preparation dictionary

 

NSMutableDictionary *yearCountDictionary = [NSMutableDictionary dictionary];

for(NSObject *object in model.items) {

 

NSString *year = [object valueForKey:@"year"];

//NSInteger yearCount = [(NSNumber *)[yearCountDictionary valueForKey:year] integerValue];

yearCounter = [(NSNumber *)[yearCountDictionary valueForKey:year] integerValue];

yearCounter++;

//NSLog(@"yearCounter 2: %li", (long)yearCounter);

[yearCountDictionary setValue:[NSNumber numberWithInteger:yearCounter] forKey:year];

 

 

model.sectionActions.didFetchItemsFromStore = ^(SCArrayOfItemsSection *itemsSection, NSMutableArray *items)

{

// This is not the only way to sort, but probably the easiest when using STV

SCDataFetchOptions *fetchOptions = [SCDataFetchOptions optionsWithSortKey:@"year" sortAscending:NO filterPredicate:nil];

 

[fetchOptions sortMutableArray:items];

};

 

 

// header Title

 

model.modelActions.sectionHeaderTitleForItem = ^NSString*(SCArrayOfItemsModel *itemsModel, NSObject *item, NSUInteger itemIndex)

{

 

 

NSString *year = [item valueForKey:@"year"];

NSInteger yearInt = [year integerValue];

NSInteger age = yearInt - birthYear;

 

decade = age / 10;

if (decade < 0) decade = 0;

 

yearCounter = [(NSNumber *)[yearCountDictionary valueForKey:year] integerValue];

 

NSString *countString;

if (yearCounter == 1) {

countString = @"record";

} else {

countString = @"records";

}

 

 

NSString *yearHeader;

 

if (_IPAD) {

yearHeader = [NSString stringWithFormat:@"%@   %ld %@   age: %ld", year, (unsigned long)yearCounter, countString, (unsigned long) age ];

} else {

yearHeader = [NSString stringWithFormat:@"%@      %ld %@     age: %ld", year, (unsigned long)yearCounter, countString, (unsigned long) age ];

}

 

 

return yearHeader;

};

 

[model.modeledTableView reloadData];

 

 

//Display

 

model.cellActions.willDisplay = ^(SCTableViewCell *cell, NSIndexPath *indexPath)

{

NSInteger year = [(NSNumber *)[cell.boundObject valueForKey:@"year"] integerValue];

 

NSInteger age = year - birthYear;

NSString *ageString = [NSString stringWithFormat:@"%li", (long)age ];

[cell.boundObject setValue:ageString forKey:@"age"];

 

cell.accessoryType = UITableViewCellAccessoryNone;

};

 

 

self.tableViewModel = model;

 

Edited by David DelMonte, 24 January 2015 - 08:46 PM.

[wizgod]

Can you show me a screenshot of your nested E/C tableview?

 

I think I have it working for the most part; I added the concept to one of my projects (although it's in Swift) but I may be missing one of your nested E/C levels.

 

https://www.dropbox....G_8522.PNG?dl=0

https://www.dropbox....G_8524.PNG?dl=0

 

If you need to do a sort on a calculated value that you have set in willConfigure or willDisplay, what I have done in one of my other projects is loop through the items in didFetchItemsFromStore, made the calculations, set the property and then did the sort.

 

Wg

[David DelMonte]

Here are two images...

 

 Screen Shot 2015-01-25 at 5.27.04 PM.png   68.28K   3 downloads

 

 Screen Shot 2015-01-25 at 5.27.23 PM.png   65.61K   3 downloads

 

 

 

[David DelMonte]

But this is a value from the model (year). It's not calculated.. 

[wizgod]

I'm really starting to hate this Magic Mouse; one accidental swipe and back or forth you go and lose what you wrote. Will save and edit this time :-)

 

For some reason, mine shows the header title in the actual header still...

 

I have it working like you want I think; what I did was use a nib for the header and set it in didAddSection.

 

Nib: https://www.dropbox....erCell.xib?dl=0

 

This is the class for it:

 

class WGExpandCollapseHeaderCell:SCExpandCollapseCell
{
    var year:String!
    var numberOfRecords:String!
    var age:String!
    
    @IBOutlet var yearLabel : UILabel!
    @IBOutlet var numberOfRecordsLabel : UILabel!
    @IBOutlet var ageLabel : UILabel!

    override var ownerSectionExpanded:Bool {
        didSet {
            refresh()
        }
    }
    
    func refresh()
    {
        if year != nil {
            // Just reversing the string to make sure it's working.
            yearLabel.text = ownerSectionExpanded ? year : year.reverseString()
        }
        
        if numberOfRecords != nil {
            numberOfRecordsLabel.text = numberOfRecords
        }
        
        if age != nil {
            ageLabel.text = age
        }
    }
}

 

self.tableViewModel.modelActions.didAddSection = {
    (tableModel, section, sectionIndex) in

        // Use our nib for the custom E/C cell.
	var headerCell = NSBundle.mainBundle().loadNibNamed("HeaderCell", owner: self, options: nil).first as WGExpandCollapseHeaderCell

        // Starting state of the E/C cell.
	headerCell.ownerSectionExpanded = true

	section.expandCollapseCell = headerCell
}

 

model.modelActions.sectionHeaderTitleForItem = ^NSString*(SCArrayOfItemsModel *itemsModel, NSObject *item, NSUInteger itemIndex)
{
	// Return the year for the headerTitle since this is what you want to sort by.
	return [item valueForKey:@"year"];
};

 

model.modelActions.sortSections = ^(SCTableViewModel *tableModel, NSMutableArray *sections)
{
    // Since we returned the year in the headerTitle, we can sort by that property.
    SCDataFetchOptions *fetchOptions = [SCDataFetchOptions optionsWithSortKey:@"headerTitle" sortAscending:NO filterPredicate:nil];
	
    [fetchOptions sortMutableArray:sections];
};

 

self.tableViewModel.cellActions.willDisplay = {
	(cell, indexPath) in
	
	if cell.isKindOfClass(WGExpandCollapseHeaderCell)
	{
		var objectsSection = cell.ownerSection as SCArrayOfObjectsSection
		var headerCell = cell as WGExpandCollapseHeaderCell
		
		// The year comes from sectionHeaderTitleForItem.
		headerCell.year = cell.ownerSection.headerTitle
		
		// We use the items.count because section.cellCount gives the number of cells presently in the section and not items.
		headerCell.numberOfRecords = "\(objectsSection.items.count-1)"
		
		// Your calculated value here.
		headerCell.age = "\(Int(rand()) % 65)"

		// Update the labels.
		headerCell.refresh()
	} else if cell.isKindOfClass(SCCustomCell) {
            // Display for the rest of the cells...
        }
}

 

self.tableViewModel.cellActions.didSelect = {
    (cell, indexPath) in

    // Don't take any action if the custom E/C cell is selected.			
    if !cell.isKindOfClass(WGExpandCollapseHeaderCell)
    {
        self.performSegueWithIdentifier("topics", sender: cell)
    }
}

 

Sorry for the mixed Switch/Obj-C.

 

Wg

Edited by wizgod, 25 January 2015 - 09:00 PM.