I am trying to expand child entity in entity but getting following error : 400 Bad Request
Query option 'Expand' is not allowed. To allow it, set the 'AllowedQueryOptions' property on QueryableAttribute or QueryValidationSettings.
I set [EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]this property but no luck, then also fire same error.
Here is my URI :
localhost/OData/Ticket?$expand=Location
I also trying for get count of record but count also not working for me.Here is my URI for count.
localhost/OData/Ticket?$count=true
But here also I getting 400 Bad request error with following message :
The query parameter '$count' is not supported.
I did lot of google and found some related issues but that not work for me. Here is my Code:
Controller :
public class ODataTicketController : ODataController
{
[ODataRoute]
[EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]
public IQueryable<Ticket> Get()
{
return db.Tickets;
}
}
Please help to resolve this.
Thank you.
Finally working all odata query on my controller. Just need IQueryable to IHttpActionResult. Now its working fine. Here is updated controller.
public class ODataTicketController : ODataController
{
[EnableQuery]
public IHttpActionResult<Ticket> Get()
{
var result = db.Tickets;
return Ok(result);
}
}
Hope it will help someone.
Thank you.
Related
I found a strange query implemented in my project, when I debug and inspect the persistance.query Object just before it call getResultList() method, the queryString I found is :
FROM AuthorityTbl a WHERE bw_and(a.setupFiltersIn, :setupFiltersIn) <> 0
This query is working fine and fetching all data from authority table where setupFiltersIn = :setupFiltersIn.
I am not able to understand yet what is bw_and in this query syntax.
Could anyone have any idea?
I am using sqlServer2014 and direct query with bw_and is not acceptable by sqlServer.
In My application below class is used which register bw_and as bitwise operator
public class ExtendedMSSQLServerDialect extends SQLServerDialect {
public ExtendedMSSQLServerDialect() {
super();
registerFunction("bw_and", new BitwiseSQLFunction(BitwiseSQLOperator.AND, "bw_and"));
registerFunction("bw_or", new BitwiseSQLFunction(BitwiseSQLOperator.OR, "bw_or"));
registerFunction("cast_text_to_varchar_of_length", new CastTextToVarcharSQLFunction("cast_text_to_varchar_of_length"));
}
}
MVC 4
I have an action that is decorated with an action filter like this:
[ViewPermission(PermissionType.GlobalUser)]
public ActionResult General()
{
var permissionType = // trying to access the value passed to the filter ie. PermissionType.GlobalUser value
return View();
}
Is there a way to get the properties from the acation filter inside the action itself?
Thanks in advance.
So the quick answer is yes, you can do it doing something like this:
[ViewPermission(PermissionType.GlobalUser)]
public ActionResult General()
{
var type = GetType(this);
var method = type.GetMethod("General");
var attribute(typeof(ViewPermission));
var permissionType = attribute.PermissionType;
return View();
}
With that said, it is NOT a good idea. Doing reflection is slow. Very slow. You would see performance problems. If you really need to do this, then it is best to figure out a way to do it during initialization of the app, where performance is not as much of a concern.
Hope that helps.
I've had a MVC 4 / Entity web project dropped into my lap, and I've never used either before. I'm getting through it but the simple things are really tripping me up - Like hiding or displaying a link in my layout based on a parameter in the database.
I created a function in my HomeController that simply sets 2 bools in the ViewBag for whether or not a person is a manager or superuser. I call that function using
#Html.Action("SetupViewBag", "Home")
which sits right after the <body> tag in my layout. Here is the code for SetupViewBag:
public void SetupViewBag()
{
ViewBag.IsManager = ADAccess.IsManager(SessionManager.GetUserName());
ViewBag.IsSuper = SessionManager.SuperUser();
}
The bools are set properly and in the right order when I set up break points, but when I try to access them using the below code, I get a 'Cannot convert null to 'bool' because it is a non-nullable value type.'
#{
if((bool)#ViewBag.IsManager){
<li>#Html.ActionLink("Management", "Management", "Home",null, new { id = "managementLink" })</li>
}
}
There has to be something really simple I'm missing. Any help is greatly appreciated.
Based on your comment, #Dakine83, you should setup your ViewBag on the controller constructor method like so:
public class YourController : BaseController {
public YourController(){
}
}
The reason for that is because the Layout page is already rendered the time your action method has been called. The reason you have a null ViewBag.IsManager.
UPDATE: Use a base controller
public class BaseController : Controller {
public BaseController() {
ViewBag.IsManager = ADAccess.IsManager(SessionManager.GetUserName());
}
}
i hope this might work for you,please try it once
#Html.ActionLink("Management", "Management", "Home", new { id = false }, null);
Thanks
Following line of code gives me an error saying "The underlying connection was closed".
return this.repository.GetQuery<Countries>().Include(g => g.Cities).AsEnumerable().ToList();
But if I remove .Include(g => g.cities) it works fine.
this code is written in one of the operation in my WCF service, and I try to test it using WCF test client. I tried by calling this operation from MVC application also, and the same issue was occurring there too.
Also, i am using generic repository with entity framework
Repository code (only few important extract)
Constructor:
public GenericRepository(DbContext objectContext)
{
if (objectContext == null)
throw new ArgumentNullException("objectContext");
this._dbContext = objectContext;
this._dbContext.Configuration.LazyLoadingEnabled = false;
this._dbContext.Configuration.ProxyCreationEnabled = false;
}
GetQuery method:
public IQueryable<TEntity> GetQuery<TEntity>() where TEntity : class
{
var entityName = GetEntityName<TEntity>();
return ((IObjectContextAdapter)DbContext).ObjectContext.CreateQuery<TEntity>(entityName);
}
Attempt#1
Created following overloads in repository code:
public IQueryable<TEntity> GetQuery<TEntity>(params string[] includes) where TEntity : class
{
var entityName = GetEntityName<TEntity>();
IQueryable<TEntity> query = ((IObjectContextAdapter)DbContext).ObjectContext.CreateQuery<TEntity>(entityName);
foreach(string include in includes)
{
query = query.Include(include);
}
return query;
}
public IQueryable<TEntity> GetQuery<TEntity>(Expression<Func<TEntity, bool>> predicate, params string[] includes) where TEntity : class
{
return GetQuery<TEntity>(includes).Where(predicate);
}
WCF is now trying to execute following line of code:
return this.repository.GetQuery<Countries>("Cities").AsEnumerable().ToList()
But it still gives the same error of "The underlying connection was closed". I tested it in WCF test client. However, when I debug the repository code it shows the navigation object getting included in result, but the issue seems occurring while trying to pass the output to client (WCF test client, or any other client)
After looking at the code you've now posted, I can conclude that, indeed, your DbContext is being closed at the end of the GetQuery method, and is thus failing when you try to use include. What you might want to do to solve it is to have an optional params variable for the GetQuery method that will take in some properties to be included, and just do the include right in the GetQuery method itself.
I am trying to use following construct
#ApplicationPath("app")
#Path("api/{userid}/model")
public class ModelService
{
#Get
#Path("{modelid: (.*)?}")
public Response removePreProcessor(#PathParam("userid") String sUserId, #PathParam("preprocessorid") String sPreProcessorId)
{
return Response.build();
}
}
I can not access both following REST URL
GET http://localhost:8080/XXXX/app/api/xyz/model
GET http://localhost:8080/XXXX/app/api/xyz/model/123
Let me know what is a wrong I am doing
-Thanks in advance
As I read your question, several things look strange to me but they may be context related.
One thing though seems wrong :
You are using a #PathParam("preprocessorid") but I can't see this param in your path.
Do you have any logs ?