Filtering tuple with custom object, Swift-CodePudding

I have a datasource made like this:

[(header: String?, cells: [CustomObject])]

Lets say customObject as a field name.

Now I need to filter my dataSource by name given by the searcher text.

How do I filter all elements that contains this given text in my CustomObject name value?

I would have done something like this if I haven't a tuple:

filteredDataSource = dataSource.filter({
    return $0.questionTitle.lowercased().contains(searchText.lowercased())
})

UPDATE:

The main datasource is composed like this:

header: Europe cells: CustomObject("Italy), CustomObject("Germany)...

header: Africa cells: CustomObject("Congo")...

By filtering with the searched text (For example Italy), the cells are correctly filtered! But the header is not filtered accordingly. So I receive:

header: Africa cells: CustomObject("italy)

for example...

How do I filter cells with the searchedText and headers accordingly?

CodePudding user response：

You can use compactMap for this and filter your nested array and return nil if there isn't any match in nested array.

let search = searchText.lowercased()
let filteredArray = tupleArray.compactMap({
    let filteredCells = $0.cells.filter({ $0.name.lowercased().contains(search) })
    return filteredCells.isEmpty ? nil : ($0.header, filteredCells)
})