internal IQueryable ApplyPaging(IQueryable result, ODataQuerySettings querySettings)
{
int pageSize = -1;
if (querySettings.PageSize.HasValue)
{
pageSize = querySettings.PageSize.Value;
}
else if (querySettings.ModelBoundPageSize.HasValue)
{
pageSize = querySettings.ModelBoundPageSize.Value;
}
int preferredPageSize = -1;
if (RequestPreferenceHelpers.RequestPrefersMaxPageSize(Request.Headers, out preferredPageSize))
{
pageSize = Math.Min(pageSize, preferredPageSize);
}
ODataFeature odataFeature = Request.ODataFeature() as ODataFeature;
if (pageSize > 0)
{
bool resultsLimited;
result = LimitResults(result, pageSize, querySettings.EnableConstantParameterization, out resultsLimited);
if (resultsLimited && Request.GetEncodedUrl() != null &&
odataFeature.NextLink == null)
{
odataFeature.PageSize = pageSize;
}
}
odataFeature.QueryOptions = this;
return result;
}
internal static ODataQueryOptions GetQueryOptions(this HttpRequest request)
{
if (request == null)
{
throw Error.ArgumentNull(nameof(request));
}
ODataFeature feature = request.ODataFeature() as ODataFeature;
return(feature.QueryOptions);
}
/// <summary>
/// Writes the given <paramref name="graph"/> using the given <paramref name="writer"/>.
/// </summary>
/// <param name="writer">The <see cref="ODataCollectionWriter"/> to use.</param>
/// <param name="graph">The collection to write.</param>
/// <param name="collectionType">The EDM type of the collection.</param>
/// <param name="writeContext">The serializer context.</param>
public virtual void WriteCollection(ODataCollectionWriter writer, object graph, IEdmTypeReference collectionType,
ODataSerializerContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull(nameof(writer));
}
if (writeContext == null)
{
throw Error.ArgumentNull(nameof(writeContext));
}
ODataCollectionStart collectionStart = new ODataCollectionStart {
Name = writeContext.RootElementName
};
if (writeContext.Request != null)
{
ODataFeature odataFeature = writeContext.Request.ODataFeature() as ODataFeature;
if (odataFeature.NextLink != null)
{
collectionStart.NextPageLink = odataFeature.NextLink;
}
else if (odataFeature.QueryOptions != null)
{
// Collection serializer is called only for collection of primitive values - A null object will be supplied since it is a non-entity value
SkipTokenHandler skipTokenHandler = writeContext.QueryOptions.Context.GetSkipTokenHandler();
collectionStart.NextPageLink = skipTokenHandler.GenerateNextPageLink(new Uri(writeContext.Request.GetEncodedUrl()), odataFeature.PageSize, null, writeContext);
}
if (odataFeature.TotalCount != null)
{
collectionStart.Count = odataFeature.TotalCount;
}
}
writer.WriteStart(collectionStart);
if (graph != null)
{
ODataCollectionValue collectionValue = CreateODataValue(graph, collectionType, writeContext) as ODataCollectionValue;
if (collectionValue != null)
{
foreach (object item in collectionValue.Items)
{
writer.WriteItem(item);
}
}
}
writer.WriteEnd();
}
/// <summary>
/// Extension method to return the <see cref="IODataFeature"/> from the <see cref="HttpContext"/>.
/// </summary>
/// <param name="httpContext">The Http context.</param>
/// <returns>The <see cref="IODataFeature"/>.</returns>
public static IODataFeature ODataFeature(this HttpContext httpContext)
{
if (httpContext == null)
{
throw Error.ArgumentNull("httpContext");
}
IODataFeature odataFeature = httpContext.Features.Get <IODataFeature>();
if (odataFeature == null)
{
odataFeature = new ODataFeature(httpContext);
httpContext.Features.Set <IODataFeature>(odataFeature);
}
return(odataFeature);
}
/// <summary>
/// Extension method to return the <see cref="IODataFeature"/> from the <see cref="HttpContext"/>.
/// </summary>
/// <param name="httpContext">The Http context.</param>
/// <returns>The <see cref="IODataFeature"/>.</returns>
public static IODataFeature ODataFeature(this HttpContext httpContext)
{
if (httpContext == null)
{
throw new ArgumentNullException(nameof(httpContext));
}
IODataFeature odataFeature = httpContext.Features.Get <IODataFeature>();
if (odataFeature == null)
{
odataFeature = new ODataFeature();
httpContext.Features.Set <IODataFeature>(odataFeature);
}
return(odataFeature);
}
public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
if (bindingContext.ModelMetadata == null)
{
throw Error.Argument("bindingContext", SRResources.ModelBinderUtil_ModelMetadataCannotBeNull);
}
HttpContext httpContext = bindingContext.HttpContext;
ODataFeature odataFeature = httpContext.ODataFeature() as ODataFeature;
IDictionary <string, object> values = odataFeature?.BodyValues;
if (values == null)
{
values = ReadODataBody(bindingContext);
if (values == null)
{
values = new Dictionary <string, object>();
}
if (odataFeature != null)
{
odataFeature.BodyValues = values;
}
}
if (values.TryGetValue(bindingContext.ModelMetadata.Name, out object result))
{
//ValueProviderResult valueProviderResult = new ValueProviderResult(result);
//bindingContext.ModelState.SetModelValue(bindingContext.ModelName, valueProviderResult);
bindingContext.Result = ModelBindingResult.Success(result);
return(Task.CompletedTask);
}
return(Task.CompletedTask);
}
