Search from Array with custom fields Swift

Question

I have an arrays

var searchArray = [(
    ean: String,
    name: String,
    weight: String,
    brand: String,
    percent: String,
    inside: String,
    img: String,
    packet: String,
    date: String)
    ]()

var searchArrayFiltered = [(
    ean: String,
    name: String,
    weight: String,
    brand: String,
    percent: String,
    inside: String,
    img: String,
    packet: String,
    date: String)
    ]()

I have a code for search from arrays and show result in table:

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
    searchArrayFiltered = searchText.isEmpty ? searchArray : searchArray.filter({(dataString: String) -> Bool in
        return dataString.(of: searchText, options: .caseInsensitive) != nil
    })

    tableView.reloadData()
}

But in line return dataString.String(of: searchText, options: .caseInsensitive) != nil i have an error:

Value of tuple type '(ean: String, name: String, weight: String, brand: String, percent: String, inside: String, img: String, packet: String, date: String)' has no member 'String'

If I change dataString.String to dataString.name, I have an error:

Cannot call value of non-function type 'String'

Please help me to do search from searchArray for "name".

vadian · Accepted Answer · 2018-11-13 11:27:07Z

3

First of all you are discouraged from using a tuple as array type. Use a custom struct or class

Apple says:

Tuples are useful for temporary groups of related values. They’re not suited to the creation of complex data structures. If your data structure is likely to persist beyond a temporary scope, model it as a class or structure, rather than as a tuple.

There are two major issues:

Copy&Paste mistake, you mean dataString.range(of...
dataString is not a string, it's a tuple (the type annotation is redundant)

Change the function to

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
    searchArrayFiltered = searchText.isEmpty ? searchArray : searchArray.filter({tuple -> Bool in
        return tuple.name.range(of: searchText, options: .caseInsensitive) != nil
    })

    tableView.reloadData()
}

answered Nov 13, 2018 at 11:27

vadian

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1 Comment

Артем Ильинский Over a year ago

Thank you very much. I'm always working with java\android, and swift for me is Hell.

Viren Malhan · Accepted Answer · 2018-11-13 11:31:25Z

0

create a struct for

struct Model {
    var ean: String
    var name: String
    var weight: String
    var brand: String
    var percent: String
    var inside: String
    var img: String
    var packet: String
    var date: String
}

then apply filter on your [Model]

answered Nov 13, 2018 at 11:31

Viren Malhan

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