[英]Umbraco 8: Get reference to DocumentType definition in WebAPI class
Background:背景:
I've got a WebAPI endpoint I call from JS, that fetches Book
items from my DB.我有一个从 JS 调用的 WebAPI 端点,它从我的数据库中获取
Book
项目。 I want to filter based on an input
variable, such as ISBN, in my LINQ query.我想在 LINQ 查询中根据
input
变量(例如 ISBN)进行过滤。 In order to do that, I need to get the DocumentType definition imported in my UmbracoAPIController
class.为此,我需要在我的
UmbracoAPIController
class 中导入 DocumentType 定义。
Trying the below, where Book
is the type I want to cast to:尝试以下方法,其中
Book
是我要转换为的类型:
var parent = Umbraco.ContentAtRoot().First().Children().FirstOrDefault(x => x.Name == "Booklist");
if (parent != null)
{
var isbn = HttpContext.Current.Request.Params["isbn"];
var books = parent.Children().Cast<Book>().Where(b => b.Isbn == isbn);
foreach (var book in books)
{
// Do something here....
}
}
Breaks with the error:打破错误:
The type or namespace name 'Book' could not be found (are you missing a using directive or an assembly reference?)
Note: Please don't tell me I'm just doing everything the 'wrong' way unless you have a clear, better alternative, thank you.注意:请不要告诉我,除非您有明确、更好的选择,否则我只是在以“错误”的方式做所有事情,谢谢。
I dont know if this will help but i dont do a direct cast (haven't even tried it) and just work with the default property value direct eg我不知道这是否会有所帮助,但我不做直接转换(甚至没有尝试过),只是直接使用默认属性值,例如
var books = parent.Children().Where(page => page.HasProperty("Isbn") &&
page.HasValue("Isbn") &&
page.Value<string>("Isbn") == Isbn);
Interested though to find out how a direct cast work.不过有兴趣了解直接演员是如何工作的。
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