ios - 无法使用 whereKey 为 textDidChange 搜索两个字符串对象

Question

我有一个 tableView，我正在其中从 Parse 加载我的数据。现在我想使用 parse 来显示来自 searchBar.text 的搜索结果。我有名字和姓氏，我都想在其中搜索。问题是我不知道如何在类中查询搜索 2 个对象并在 tableView 中显示过滤的匹配项.它完全适用于一个对象。

我尝试执行 2 个 whereKey 方法但都失败了，它只会显示对象的两个首字母开头的单元格；示例:约翰·约翰森

希望我说清楚了我的问题。

更新 2:

class TableViewController: UITableViewController, UISearchBarDelegate {

@IBOutlet var searchBar: UISearchBar! =  UISearchBar()

var timeLineData:NSMutableArray = NSMutableArray()

override func viewDidLoad() {
    super.viewDidLoad()

    searchBar.delegate = self

    ....
}

func loadData(name:String){
    timeLineData.removeAllObjects()

    var firstName = PFQuery(className: "Newfamilie")
    firstName.whereKey("voornaam", containsString: name)

    var lastName = PFQuery(className: "Newfamilie")
    lastName.whereKey("achternaam", containsString: name)

    var query = PFQuery.orQueryWithSubqueries([firstName, lastName])
    query.orderByAscending("achternaam")
    query.limit = 200
    query.findObjectsInBackgroundWithBlock {
        (objects: [AnyObject]!, error: NSError!) -> Void in
        if error == nil {

            for object in objects{
                let naam:PFObject = object as PFObject
                self.timeLineData.addObject(naam)
            }

            self.tableView.reloadData()
            self.refreshTimeLineControl.endRefreshing()

            println("\(self.timeLineData.count)")
        }
    }
}

override func viewDidAppear(animated: Bool) {
    self.loadData("")
}

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

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
    loadData(searchText)
}

func searchBarCancelButtonClicked(searchBar: UISearchBar) {
    loadData("")
}

override func tableView(tableView: UITableView?, cellForRowAtIndexPath indexPath: NSIndexPath?) -> UITableViewCell {
    let cell = tableView!.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath!) as UITableViewCell

    let persoon:PFObject = self.timeLineData.objectAtIndex(indexPath!.row) as PFObject
    let voornaam = persoon.objectForKey("voornaam") as String
    let achternaam = persoon.objectForKey("achternaam") as String

    cell.textLabel.text = "\(voornaam) \(achternaam)"

    return cell
}

Answer 1

问题是您搜索的要求是名字和姓氏必须包含字符串才能得到结果。您需要组合两个 PFQuery 实例 - 这将为您提供 voornaam 或 achternaam 的结果，而不是 AND。

var firstName = PFQuery(className: "Newfamilie")
firstName.limit = 200
firstName.orderByAscending("achternaam")
firstName.whereKey("voornaam", containsString: name)
var lastName = PFQuery(className: "Newfamilie")
lastName.limit = 200
lastName.orderByAscending("achternaam")
lastName.whereKey("achternaam", containsString: name)

var query = PFQuery.orQueryWithSubqueries([firstName, lastName])
query.findObjectsInBackgroundWithBlock {
    (results: [AnyObject]!, error: NSError!) -> Void in
    if error == nil {
        // Results will be data containing the string "name" in "voornaam" OR "achternaam"
        for object in objects{
            let naam:PFObject = object as PFObject
            self.timeLineData.addObject(naam)
        }

        self.tableView.reloadData()

        println("\(self.timeLineData.count)")
    }
}