Filter multiple arrays with one condition - arrays

Question

I have a tableView with different kinds of infos, each coming from a different array.
I could not work with dictionaries because then the list would have been unordered and I could not work with classes, because I have different lists with all kinds of dynamic entries (properties are always different etc.)
Here my problem:
I want to implement a search function. But when I use the filter function for one array, it changes of course based on the implemented condition but the other 5 stay the same => I can't reload the tableView because the array information does not match anymore ...
Here the arrays:
var categoryItemUIDs = [String]()
var categoryItemDescriptions = [String]()
var categoryItemLfdNrs = [Int]()
var categoryGivenOuts = [Bool]()
var categoryGivenTos = [String]()
var categoryGivenAts = [String]()
var categoryStorageLocations = [String]()
In the tableView(cellForRowAtIndexPath method):
cell.customTextLabel?.text = categoryItemLfdNrs[indexPath.row]
cell.customDetailTextLabel.text = categoryItemDescriptions[indexPath.row]
Here the searchBar(textDidChange) method:
self.categoryItemDescriptions.filter { $0.lowercased().contains(searchText.lowercased()) }
Now I get an array back with reduced size, but all the other arrays stay the same... Is there maybe another way to avoid this problem? I already tried type aliases but it did not work out.
I would appreciate any help!
Kind regards,

Answer 1

When it goes to such a big count of arrays, the time for your specific type comes.
The simple solution is to create something like
struct Category {
var uid: String
var description: String
// ...
var storageLocation: String
}
The you have simply something like
var items: [Category]
And you can still do simple things in cellForRowAtIndexPath
cell.customTextLabel?.text = items[indexPath.row].lfdnrs
cell.customDetailTextLabel.text = items[indexPath.row].description
And only 1 array to filter
items.filter { $0.description.lowercased().contains(searchText.lowercased()) }
So overall advice is to solve different problem (here I suggested the solution of the having your data in the app problem instead of filtering multiple arrays with one condition)

Answer 2

try
var categoryItemUIDs = ["aaa","bbb","ccc"]
var categoryItemDescriptions = ["ddd","eee","fff"]
var categoryItemLfdNrs = [0,1,2]
struct data {
var id = ""
var desc = ""
var item = 0
init(id :String, desc:String, item:Int)
{
self.id = id
self.desc = desc
self.item = item
}
}
//var cat = [data]()
//for i in 0..<categoryItemUIDs.count {
// cat.append(data(id:categoryItemUIDs[i], desc:categoryItemDescriptions[i],item:categoryItemLfdNrs[i] ))
//}
//more swift
let cat = (0..<categoryItemUIDs.count).map { (i) -> data in
return data(id:categoryItemUIDs[i], desc:categoryItemDescriptions[i],item:categoryItemLfdNrs[i] )
}
print (cat)
let catFilter = cat.filter { $0.id == "aaa" }
print (catFilter)