ios - 无法解析 RealmSwift 中的格式字符串

Question

型号

class News: Object {
dynamic var ExternalId: String?
dynamic var Title: String?
dynamic var Preview: String?
dynamic var Description: String?
dynamic var PublicationDate: Date?
dynamic var ExternalUrl: String?
dynamic var ImageUrl: String?
dynamic var ViewTypeName: String?
dynamic var Status: Bool = true
dynamic var Like: Bool = false
dynamic var AuthorizedOnly: Bool = false

override static func primaryKey() -> String? {
    return "ExternalId"
}

使用代码:

self.news = try! Realm().objects(News.self).filter("Like == YES").sorted(byProperty: "PublicationDate", ascending: true)

错误:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unable to parse the format string "Like == YES"'

我尝试:

Like = YES
Like = true
Like = 1

但这是行不通的!

请帮忙!

Answer 1

似乎 NSPredicate 将 Like 视为关键字而不是属性名称。作为解决方法，您可以使用类似的方法:

.filter(NSPredicate(format: "%K == true", "Like"))