我有一个简单的模型，它是 Entity Framework 5 Code First，ActiveEntity 是一个具有 int Id 属性和 bool IsActive 字段的抽象类。
public class License:ActiveEntity
{
public string LicenseName { get; set; }
public LicenseType LicenseType { get; set; }
public State State { get; set; }
public DateTime DateIssued { get; set; }
public int ValidFor { get; set; }
}
public class LicenseType:ActiveEntity
{
[StringLength(100),Required]
public string Description { get; set; }
}
public class State:ActiveEntity
{
[StringLength(2)]
[Required]
public string Name { get; set; }
[Display(Name = "Long Name")]
[Required, StringLength(25)]
public string LongName { get; set; }
}
Breeze 在 LicenseController 上调用 GetLicenses：
[BreezeController]
public class LicenseController : ApiController
{
private readonly EFContextProvider<LicensingContext> db = new EFContextProvider<LicensingContext>();
[HttpGet]
public string Metadata()
{
return db.Metadata();
}
[HttpPost]
public SaveResult SaveChanges(JObject saveBundle)
{
return db.SaveChanges(saveBundle);
}
[HttpGet]
public IQueryable<License> GetLicenses()
{
//for debugging purposes
var retVal = db.Context.Licenses
.Include(l => l.State)
.Include(l=>l.LicenseType);
return retVal;
}
}
db 上下文返回适当的数据，但它不会出现在响应中。我没有足够的信誉点来发布图像，但许可证类型和状态在上下文的响应中。
但是，控制器的响应不包含前三个对象的 licensetype 对象。[{"$id":"1","$type":"Volt.Telecom.Licensing.Models.License, Volt.Telecom.Licensing.Models","LicenseName":"低电压","状态":{ "$id":"2","$type":"Volt.Telecom.Licensing.Models.State, Volt.Telecom.Licensing.Models","Name":"FL","LongName":"Florida", "IsActive":false,"Id":23},"DateIssued":"2012-11-18T00:00:00.000","ValidFor":1095,"IsActive":false,"Id":1},{" $id":"3","$type":"Volt.Telecom.Licensing.Models.License, Volt.Telecom.Licensing.Models","LicenseName":"Contractors",
这是客户端上的 home.js 文件。
定义（['服务/记录器']，功能（记录器）{ var system = require('durandal/system');
var serviceName = 'api/License';
// manager is the service gateway and cache holder
var manager = new breeze.EntityManager(serviceName);
var vm = {
activate: getLicenses,
title: 'Licenses',
licenses: ko.observableArray(),
includeExpired: ko.observable(false),
save: saveChanges,
show: ko.observable(false)
};
//vm.includeExpired.subscribe(getLicenses);
function getLicenses() {
log("querying Licenses", null, true);
var query = breeze.EntityQuery.from("GetLicenses");
//if (!vm.includeExpired()) {
// query = query.where("DateIssued.AddDays(ValidFor*-1)" > new Date(Date.now()));
//}
return manager
.executeQuery(query)
.then(querySucceeded)
.fail(queryFailed);
// reload vm.todos with the results
function querySucceeded(data) {
log("queried Licenses", null, true);
vm.licenses(data.results);
vm.show(true); // show the view
}
}
function queryFailed(error) {
log("Query failed: " + error.message, null, true);
}
function saveChanges() {
return manager.saveChanges()
.then(function () { log("changes saved", null, true); })
.fail(saveFailed);
}
function saveFailed(error) {
log("Save failed: " + error.message, null, true);
}
function log(msg, data, showToast) {
logger.log(msg, data, system.getModuleId(vm), showToast);
}
return vm;
//#endregion
});
关于为什么会发生这种情况以及仅针对前三个项目的任何想法，我们将不胜感激。我喜欢微风作为我们需要编写的一些水疗中心的潜力，但这引起了我的一些担忧。
更新 1 如果我在它工作的数据库中更改 LicenseType_id 的顺序，则初始顺序为 123123，如果更改为 312123 或 321123，则响应中的所有六个都是正确的 [{"$id":"1","$type": "Volt.Telecom.Licensing.Models.License, Volt.Telecom.Licensing.Models","LicenseName":"Low Voltage","LicenseType":{"$id":"2","$type":"Volt .Telecom.Licensing.Models.LicenseType, Volt.Telecom.Licensing.Models","Description":"General Contractors","IsActive":false,"Id":3},"State":{"$id": "3","$type":"Volt.Telecom.Licensing.Models.State, Volt.Telecom.Licensing.Models","Name":"FL","LongName":"Florida","IsActive":false ,"Id":23},"DateIssued":"2012-11-18T00:00:00.000","ValidFor":1095,"IsActive":false,"Id":1},{"$id":"4 ","$type":"Volt.Telecom.Licensing.Models.License, Volt.Telecom.Licensing.Models","LicenseName":"Contractors","LicenseType":{"$id":"5"," $type":"Volt.Telecom.Licensing.Models.LicenseType, Volt.Telecom.Licensing.Models","Description":"Low Voltage","IsActive":false,"Id":1},"State": {"$ref":"3"},"DateIssued":"2012-11-18T00:00:00.000","ValidFor":1095,"IsActive":false,"Id":2},{"$id ":"6","$type":"Volt.Telecom.Licensing.Models.License, Volt.Telecom.Licensing.Models","LicenseName":"General Contractors","LicenseType":{"$id":"7","$type":"Volt.Telecom.Licensing.Models.LicenseType, Volt.Telecom. Licensing.Models","Description":"Contractors","IsActive":false,"Id":2},"State":{"$ref":"3"},"DateIssued":"2012-11- 18T00:00:00.000","ValidFor":1095,"IsActive":false,"Id":3},{"$id":"8","$type":"Volt.Telecom.Licensing.Models。许可证，Volt.Telecom.Licensing.Models","LicenseName":"Low Voltage","LicenseType":{"$ref":"5"},"State":{"$id":"9"," $type":"Volt.Telecom.Licensing.Models。州，Volt.Telecom.Licensing.Models","Name":"CA","LongName":"California","IsActive":false,"Id":35},"DateIssued":"2012-11-18T00 :00:00.000","ValidFor":1095,"IsActive":false,"Id":4},{"$id":"10","$type":"Volt.Telecom.Licensing.Models.License , Volt.Telecom.Licensing.Models","LicenseName":"Contractors","LicenseType":{"$ref":"7"},"State":{"$ref":"9"},"DateIssued ":"2012-11-18T00:00:00.000","ValidFor":1095,"IsActive":false,"Id":5},{"$id":"11","$type":"Volt .Telecom.Licensing.Models.License，Volt.Telecom.Licensing.Models","LicenseName":"General Contractors","LicenseType":{"$ref":"2"},"State":{"$ref":"9"},"DateIssued":"2012-11-18T00:00 :00.000","ValidFor":1095,"IsActive":false,"Id":6}]