public void CanApplySkipTopOrderby()
{
var model = new ODataModelBuilder().Add_Customer_EntityType().Add_Customers_EntitySet().GetServiceModel();
var context = new ODataQueryContext(model, typeof(Customer))
{
RequestContainer = new MockContainer()
};
var orderbyOption = new OrderByQueryOption("Name", context);
var skipOption = new SkipQueryOption("2", context);
var topOption = new TopQueryOption("2", context);
var customers = (new List <Customer> {
new Customer {
CustomerId = 1, Name = "Andy"
},
new Customer {
CustomerId = 2, Name = "Aaron"
},
new Customer {
CustomerId = 3, Name = "Alex"
},
new Customer {
CustomerId = 4, Name = "Ace"
},
new Customer {
CustomerId = 5, Name = "Abner"
}
}).AsQueryable();
IQueryable queryable = orderbyOption.ApplyTo(customers);
queryable = skipOption.ApplyTo(queryable, new ODataQuerySettings());
queryable = topOption.ApplyTo(queryable, new ODataQuerySettings());
var results = ((IQueryable <Customer>)queryable).ToArray();
Assert.Equal(2, results.Length);
Assert.Equal(4, results[0].CustomerId);
Assert.Equal(3, results[1].CustomerId);
}
public void CanApplyTop()
{
var model = new ODataModelBuilder().Add_Customer_EntityType().Add_Customers_EntitySet().GetServiceModel();
var topOption = new TopQueryOption("1", new ODataQueryContext(model, typeof(Customer)));
var customers = (new List <Customer> {
new Customer {
CustomerId = 1, Name = "Andy"
},
new Customer {
CustomerId = 2, Name = "Aaron"
},
new Customer {
CustomerId = 3, Name = "Alex"
}
}).AsQueryable();
var results = topOption.ApplyTo(customers, new ODataQuerySettings()).ToArray();
Assert.Equal(1, results.Length);
Assert.Equal(1, results[0].CustomerId);
}
/// <summary>
/// Initializes a new instance of the <see cref="ODataQueryOptions"/> class based on the incoming request and some metadata information from
/// the <see cref="ODataQueryContext"/>.
/// </summary>
/// <param name="context">The <see cref="ODataQueryContext"/> which contains the <see cref="IEdmModel"/> and some type information.</param>
/// <param name="request">The incoming request message.</param>
public ODataQueryOptions(ODataQueryContext context, HttpRequestMessage request)
{
if (context == null)
{
throw Error.ArgumentNull("context");
}
if (request == null)
{
throw Error.ArgumentNull("request");
}
if (request.GetConfiguration() != null)
{
_assembliesResolver = request.GetConfiguration().Services.GetAssembliesResolver();
}
// fallback to the default assemblies resolver if none available.
_assembliesResolver = _assembliesResolver ?? new DefaultAssembliesResolver();
// remember the context and request
Context = context;
Request = request;
// Parse the query from request Uri
RawValues = new ODataRawQueryOptions();
IEnumerable <KeyValuePair <string, string> > queryParameters = request.GetQueryNameValuePairs();
foreach (KeyValuePair <string, string> kvp in queryParameters)
{
switch (kvp.Key)
{
case "$filter":
ThrowIfEmpty(kvp.Value, "$filter");
RawValues.Filter = kvp.Value;
Filter = new FilterQueryOption(kvp.Value, context);
break;
case "$orderby":
ThrowIfEmpty(kvp.Value, "$orderby");
RawValues.OrderBy = kvp.Value;
OrderBy = new OrderByQueryOption(kvp.Value, context);
break;
case "$top":
ThrowIfEmpty(kvp.Value, "$top");
RawValues.Top = kvp.Value;
Top = new TopQueryOption(kvp.Value, context);
break;
case "$skip":
ThrowIfEmpty(kvp.Value, "$skip");
RawValues.Skip = kvp.Value;
Skip = new SkipQueryOption(kvp.Value, context);
break;
case "$select":
RawValues.Select = kvp.Value;
break;
case "$count":
ThrowIfEmpty(kvp.Value, "$count");
RawValues.Count = kvp.Value;
Count = new CountQueryOption(kvp.Value, context);
break;
case "$expand":
RawValues.Expand = kvp.Value;
break;
case "$format":
RawValues.Format = kvp.Value;
break;
case "$skiptoken":
RawValues.SkipToken = kvp.Value;
break;
default:
// we don't throw if we can't recognize the query
break;
}
}
if (RawValues.Select != null || RawValues.Expand != null)
{
SelectExpand = new SelectExpandQueryOption(RawValues.Select, RawValues.Expand, context);
}
Validator = new ODataQueryValidator();
}
private void BuildQueryOptions(IDictionary <string, string> queryParameters)
{
foreach (KeyValuePair <string, string> kvp in queryParameters)
{
switch (kvp.Key.ToLowerInvariant())
{
case "$filter":
ThrowIfEmpty(kvp.Value, "$filter");
RawValues.Filter = kvp.Value;
Filter = new FilterQueryOption(kvp.Value, Context, _queryOptionParser);
break;
case "$orderby":
ThrowIfEmpty(kvp.Value, "$orderby");
RawValues.OrderBy = kvp.Value;
OrderBy = new OrderByQueryOption(kvp.Value, Context, _queryOptionParser);
break;
case "$top":
ThrowIfEmpty(kvp.Value, "$top");
RawValues.Top = kvp.Value;
Top = new TopQueryOption(kvp.Value, Context, _queryOptionParser);
break;
case "$skip":
ThrowIfEmpty(kvp.Value, "$skip");
RawValues.Skip = kvp.Value;
Skip = new SkipQueryOption(kvp.Value, Context, _queryOptionParser);
break;
case "$select":
RawValues.Select = kvp.Value;
break;
case "$count":
ThrowIfEmpty(kvp.Value, "$count");
RawValues.Count = kvp.Value;
Count = new CountQueryOption(kvp.Value, Context, _queryOptionParser);
break;
case "$expand":
RawValues.Expand = kvp.Value;
break;
case "$format":
RawValues.Format = kvp.Value;
break;
case "$skiptoken":
RawValues.SkipToken = kvp.Value;
break;
case "$deltatoken":
RawValues.DeltaToken = kvp.Value;
break;
case "$apply":
ThrowIfEmpty(kvp.Value, "$apply");
RawValues.Apply = kvp.Value;
Apply = new ApplyQueryOption(kvp.Value, Context, _queryOptionParser);
break;
default:
// we don't throw if we can't recognize the query
break;
}
}
if (RawValues.Select != null || RawValues.Expand != null)
{
SelectExpand = new SelectExpandQueryOption(RawValues.Select, RawValues.Expand,
Context, _queryOptionParser);
}
if (ODataCountMediaTypeMapping.IsCountRequest(Request))
{
Count = new CountQueryOption(
"true",
Context,
new ODataQueryOptionParser(
Context.Model,
Context.ElementType,
Context.NavigationSource,
new Dictionary <string, string> {
{ "$count", "true" }
}));
}
}