SearchPushRow for Eureka 3.0 (Swift 3.1)

Project.swift

// Add SearchItem protocol to the model (here Project)
extension Project: SearchItem {
  func matchesSearchQuery(_ query: String) -> Bool {
    return name.lowercased().contains(query.lowercased())
  }
}

SearchPushRow.swift

import Eureka

// swiftlint:disable type_name
open class _SearchSelectorViewController<T: Equatable, Row: SelectableRowType>: _SelectorViewController<Row>, UISearchResultsUpdating where Row: BaseRow, Row: TypedRowType, Row.Cell.Value == T, T: SearchItem {
  let searchController = UISearchController(searchResultsController: nil)

  var originalOptions = [ListCheckRow<T>]()
  var currentOptions = [ListCheckRow<T>]()

  open override func viewDidLoad() {
    super.viewDidLoad()

    searchController.searchResultsUpdater = self
    searchController.dimsBackgroundDuringPresentation = false
    searchController.hidesNavigationBarDuringPresentation = false

    definesPresentationContext = true

    if let allRows = form.first?.map({ $0 }) as? [ListCheckRow<T>] {
      originalOptions = allRows
      currentOptions = originalOptions
    }

    tableView.tableHeaderView = searchController.searchBar
  }

  public func updateSearchResults(for searchController: UISearchController) {
    guard let query = searchController.searchBar.text else { return }
    if query.isEmpty {
      currentOptions = originalOptions
    } else {
      currentOptions = originalOptions.filter { $0.selectableValue?.matchesSearchQuery(query) ?? false }
    }
    tableView.reloadData()
  }

  open override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return currentOptions.count
  }

  open override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let option = currentOptions[indexPath.row]
    option.updateCell()
    return option.baseCell
  }

  open override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
    return nil
  }

  open override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    currentOptions[indexPath.row].didSelect()
  }
}
// swiftlint:enable type_name

open class SearchSelectorViewController<T: Equatable>: _SearchSelectorViewController<T, ListCheckRow<T>> where T: SearchItem {}

// swiftlint:disable type_name
open class _SearchPushRow<Cell: CellType> : SelectorRow<Cell, SearchSelectorViewController<Cell.Value>> where Cell: BaseCell, Cell.Value: SearchItem {
  public required init(tag: String?) {
    super.init(tag: tag)
    presentationMode = .show(controllerProvider: ControllerProvider.callback { return SearchSelectorViewController<Cell.Value> { _ in } }, onDismiss: { vc in
      _ = vc.navigationController?.popViewController(animated: true) })
  }
}
// swiftlint:enable type_name

public final class SearchPushRow<T: Equatable> : _SearchPushRow<PushSelectorCell<T>>, RowType where T: SearchItem {
  public required init(tag: String?) {
    super.init(tag: tag)
  }
}

public protocol SearchItem {
  func matchesSearchQuery(_ query: String) -> Bool
}

Updated to Eureka 4.0.1 and Swift 4
https://gist.github.com/gotelgest/cf309f6e2095ff22a20b09ba5c95be36