public void ApplyTo_OnSingleEntity_WithUnTypedContext_Throws_InvalidOperation()
{
// Arrange
CustomersModelWithInheritance model = new CustomersModelWithInheritance();
ODataQueryContext context = new ODataQueryContext(model.Model, model.Customer);
SelectExpandQueryOption selectExpand = new SelectExpandQueryOption(select: "ID", expand: null, context: context);
object entity = new object();
// Act & Assert
Assert.Throws<NotSupportedException>(() => selectExpand.ApplyTo(entity, new ODataQuerySettings()),
"The query option is not bound to any CLR type. 'ApplyTo' is only supported with a query option bound to a CLR type.");
}
public void Ctor_SetsProperty_RawExpand()
{
// Arrange
string expandValue = "expand";
_model.Model.SetAnnotationValue<ClrTypeAnnotation>(_model.Customer, new ClrTypeAnnotation(typeof(Customer)));
ODataQueryContext context = new ODataQueryContext(_model.Model, typeof(Customer));
// Act
SelectExpandQueryOption result = new SelectExpandQueryOption(select: null, expand: expandValue, context: context);
// Assert
Assert.Equal(expandValue, result.RawExpand);
}
public void Property_SelectExpandClause_WorksWithUnTypedContext()
{
// Arrange
CustomersModelWithInheritance model = new CustomersModelWithInheritance();
ODataQueryContext context = new ODataQueryContext(model.Model, model.Customer);
SelectExpandQueryOption selectExpand = new SelectExpandQueryOption(select: "ID", expand: null, context: context);
// Act & Assert
Assert.NotNull(selectExpand.SelectExpandClause);
}
public void SelectExpandCaluse_ThrowsODataException_InvalidQuery(string select, string expand, string error)
{
// Arrange
IEdmModel model = _model.Model;
_model.Model.SetAnnotationValue<ClrTypeAnnotation>(_model.Customer, new ClrTypeAnnotation(typeof(Customer)));
ODataQueryContext context = new ODataQueryContext(model, typeof(Customer));
SelectExpandQueryOption option = new SelectExpandQueryOption(select, expand, context);
// Act
Assert.Throws<ODataException>(
() => option.SelectExpandClause.ToString(),
error);
}
public void SelectExpandClause_CanParse_ModelBuiltForQueryable(string select, string expand)
{
// Arrange
HttpConfiguration config = new HttpConfiguration();
config.Services.Replace(typeof(IAssembliesResolver), new TestAssemblyResolver());
ODataConventionModelBuilder builder = new ODataConventionModelBuilder(new HttpConfiguration(), isQueryCompositionMode: true);
builder.Entity<Customer>();
IEdmModel model = builder.GetEdmModel();
ODataQueryContext context = new ODataQueryContext(model, typeof(Customer));
SelectExpandQueryOption option = new SelectExpandQueryOption(select, expand, context);
// Act & Assert
Assert.DoesNotThrow(() => option.SelectExpandClause.ToString());
}
public void ProcessLevelsCorrectly_WithNestedLevels()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: null,
expand: "Parent($expand=DerivedAncestors($levels=2);$levels=max)",
context: context);
selectExpand.LevelsMaxLiteralExpansionDepth = 4;
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
Assert.True(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
// Level 1 of Parent.
var parent = Assert.IsType <ExpandedNavigationSelectItem>(clause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)parent.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(parent.LevelsOption);
var clauseOfParent = parent.SelectAndExpand;
Assert.True(clauseOfParent.AllSelected);
Assert.Equal(2, clauseOfParent.SelectedItems.Count());
// Level 1 of DerivedAncestors.
var derivedAncestors = Assert.Single(clauseOfParent.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "DerivedAncestors"));
Assert.Null(derivedAncestors.LevelsOption);
var clauseOfDerivedAncestors = derivedAncestors.SelectAndExpand;
Assert.True(clauseOfDerivedAncestors.AllSelected);
Assert.Equal(1, clauseOfDerivedAncestors.SelectedItems.Count());
// Level 2 of DerivedAncestors.
derivedAncestors = Assert.IsType <ExpandedNavigationSelectItem>(clauseOfDerivedAncestors.SelectedItems.Single());
Assert.Equal(
"DerivedAncestors",
((NavigationPropertySegment)derivedAncestors.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(derivedAncestors.LevelsOption);
clauseOfDerivedAncestors = derivedAncestors.SelectAndExpand;
Assert.True(clauseOfDerivedAncestors.AllSelected);
Assert.Equal(0, clauseOfDerivedAncestors.SelectedItems.Count());
// Level 2 of Parent.
parent = Assert.Single(clauseOfParent.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "Parent"));
Assert.Null(parent.LevelsOption);
clauseOfParent = parent.SelectAndExpand;
Assert.True(clauseOfParent.AllSelected);
Assert.Equal(1, clauseOfParent.SelectedItems.Count());
// Level 1 of DerivedAncestors.
derivedAncestors = Assert.Single(clauseOfParent.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "DerivedAncestors"));
Assert.Null(derivedAncestors.LevelsOption);
clauseOfDerivedAncestors = derivedAncestors.SelectAndExpand;
Assert.True(clauseOfDerivedAncestors.AllSelected);
Assert.Equal(1, clauseOfDerivedAncestors.SelectedItems.Count());
// Level 2 of DerivedAncestors.
derivedAncestors = Assert.IsType <ExpandedNavigationSelectItem>(clauseOfDerivedAncestors.SelectedItems.Single());
Assert.Equal(
"DerivedAncestors",
((NavigationPropertySegment)derivedAncestors.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(derivedAncestors.LevelsOption);
clauseOfDerivedAncestors = derivedAncestors.SelectAndExpand;
Assert.True(clauseOfDerivedAncestors.AllSelected);
Assert.Equal(0, clauseOfDerivedAncestors.SelectedItems.Count());
}
public void ProcessLevelsCorrectly_WithMultipleProperties()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: null,
expand: "Parent($expand=Parent($levels=max),DerivedAncestors($levels=2;$select=ID)),BaseEntities($levels=2)",
context: context);
selectExpand.LevelsMaxLiteralExpansionDepth = 3;
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
Assert.True(clause.AllSelected);
Assert.Equal(2, clause.SelectedItems.Count());
// Top level Parent.
var parent = Assert.Single(clause.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "Parent"));
Assert.Null(parent.LevelsOption);
var clauseOfParent = parent.SelectAndExpand;
Assert.True(clauseOfParent.AllSelected);
Assert.Equal(2, clauseOfParent.SelectedItems.Count());
// Level 1 of inline Parent.
var inlineParent = Assert.Single(clauseOfParent.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "Parent"));
Assert.Null(inlineParent.LevelsOption);
// Level 2 of inline Parent.
var inlineParentClause = inlineParent.SelectAndExpand;
Assert.True(inlineParentClause.AllSelected);
Assert.Equal(1, inlineParentClause.SelectedItems.Count());
inlineParent = Assert.IsType <ExpandedNavigationSelectItem>(inlineParentClause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)inlineParent.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(inlineParent.LevelsOption);
inlineParentClause = inlineParent.SelectAndExpand;
Assert.True(inlineParentClause.AllSelected);
Assert.Equal(0, inlineParentClause.SelectedItems.Count());
// Level 1 of inline DerivedAncestors.
var inlineDerivedAncestors = Assert.Single(clauseOfParent.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "DerivedAncestors"));
Assert.Null(inlineDerivedAncestors.LevelsOption);
// Level 2 of inline DerivedAncestors.
var inlineDerivedAncestorsClause = inlineDerivedAncestors.SelectAndExpand;
Assert.False(inlineDerivedAncestorsClause.AllSelected);
Assert.Equal(3, inlineDerivedAncestorsClause.SelectedItems.Count());
var idItem = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType <PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is PropertySegment));
Assert.Equal("ID", ((PropertySegment)idItem.SelectedPath.FirstSegment).Property.Name);
var derivedAncestorsItem = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType <PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is NavigationPropertySegment));
Assert.Equal(
"DerivedAncestors",
((NavigationPropertySegment)derivedAncestorsItem.SelectedPath.FirstSegment).NavigationProperty.Name);
inlineDerivedAncestors = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType <ExpandedNavigationSelectItem>());
Assert.Equal(
"DerivedAncestors",
((NavigationPropertySegment)inlineDerivedAncestors.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(inlineDerivedAncestors.LevelsOption);
inlineDerivedAncestorsClause = inlineDerivedAncestors.SelectAndExpand;
Assert.False(inlineDerivedAncestorsClause.AllSelected);
Assert.Equal(1, inlineDerivedAncestorsClause.SelectedItems.Count());
idItem = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType <PathSelectItem>());
Assert.Equal("ID", ((PropertySegment)idItem.SelectedPath.FirstSegment).Property.Name);
// Level 1 of BaseEntities.
var baseEntities = Assert.Single(clause.SelectedItems.OfType <ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "BaseEntities"));
Assert.Null(baseEntities.LevelsOption);
// Level 2 of BaseEntities.
var baseEntitiesClause = baseEntities.SelectAndExpand;
Assert.True(baseEntitiesClause.AllSelected);
Assert.Equal(1, baseEntitiesClause.SelectedItems.Count());
baseEntities = Assert.IsType <ExpandedNavigationSelectItem>(baseEntitiesClause.SelectedItems.Single());
Assert.Equal(
"BaseEntities",
((NavigationPropertySegment)baseEntities.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(baseEntities.LevelsOption);
baseEntitiesClause = baseEntities.SelectAndExpand;
Assert.True(baseEntitiesClause.AllSelected);
Assert.Equal(0, baseEntitiesClause.SelectedItems.Count());
}
public void ProcessLevelsCorrectly_NotAllSelected()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: "Name",
expand: "Parent($select=ID;$levels=max)",
context: context);
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
// Level 1.
Assert.False(clause.AllSelected);
Assert.Equal(3, clause.SelectedItems.Count());
var nameSelectItem = Assert.Single(clause.SelectedItems.OfType <PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is PropertySegment));
Assert.Equal("Name", ((PropertySegment)nameSelectItem.SelectedPath.FirstSegment).Property.Name);
var parentSelectItem = Assert.Single(clause.SelectedItems.OfType <PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is NavigationPropertySegment));
Assert.Equal(
"Parent",
((NavigationPropertySegment)parentSelectItem.SelectedPath.FirstSegment).NavigationProperty.Name);
var expandedItem = Assert.Single(clause.SelectedItems.OfType <ExpandedNavigationSelectItem>());
Assert.Equal(
"Parent",
((NavigationPropertySegment)expandedItem.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(expandedItem.LevelsOption);
// Level 2.
clause = expandedItem.SelectAndExpand;
Assert.False(clause.AllSelected);
Assert.Equal(3, clause.SelectedItems.Count());
var idSelectItem = Assert.Single(clause.SelectedItems.OfType <PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is PropertySegment));
Assert.Equal("ID", ((PropertySegment)idSelectItem.SelectedPath.FirstSegment).Property.Name);
parentSelectItem = Assert.Single(clause.SelectedItems.OfType <PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is NavigationPropertySegment));
Assert.Equal(
"Parent",
((NavigationPropertySegment)parentSelectItem.SelectedPath.FirstSegment).NavigationProperty.Name);
expandedItem = Assert.Single(clause.SelectedItems.OfType <ExpandedNavigationSelectItem>());
Assert.Equal(
"Parent",
((NavigationPropertySegment)expandedItem.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(expandedItem.LevelsOption);
clause = expandedItem.SelectAndExpand;
Assert.False(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
idSelectItem = Assert.IsType <PathSelectItem>(clause.SelectedItems.Single());
Assert.Equal("ID", ((PropertySegment)idSelectItem.SelectedPath.FirstSegment).Property.Name);
}
public void ProcessLevelsCorrectly_AllSelected()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: null,
expand: "Parent($expand=Parent($levels=2))",
context: context);
selectExpand.LevelsMaxLiteralExpansionDepth = 3;
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
// Level 1.
Assert.True(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
var item = Assert.IsType<ExpandedNavigationSelectItem>(clause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(item.LevelsOption);
// Level 2.
clause = item.SelectAndExpand;
Assert.True(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
item = Assert.IsType<ExpandedNavigationSelectItem>(clause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(item.LevelsOption);
// Level 3.
clause = item.SelectAndExpand;
Assert.True(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
item = Assert.IsType<ExpandedNavigationSelectItem>(clause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(item.LevelsOption);
clause = item.SelectAndExpand;
Assert.True(clause.AllSelected);
Assert.Equal(0, clause.SelectedItems.Count());
}
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" }
}));
}
}
/// <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();
IDictionary <string, string> queryOptions = queryParameters.ToDictionary(p => p.Key, p => p.Value);
_queryOptionParser = new ODataQueryOptionParser(context.Model, context.ElementType,
context.NavigationSource, queryOptions);
foreach (KeyValuePair <string, string> kvp in queryParameters)
{
switch (kvp.Key)
{
case "$apply":
ThrowIfEmpty(kvp.Value, "$apply");
RawValues.Apply = kvp.Value;
Apply = new ApplyQueryOption(context, _queryOptionParser);
break;
case "aggregationWindowSize":
_aggregationWindowSize = int.Parse(kvp.Value);
break;
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;
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);
}
Validator = new ODataQueryValidator();
}
/// <summary>
/// Apply the individual query to the given IQueryable in the right order.
/// </summary>
/// <param name="query">The original <see cref="IQueryable"/>.</param>
/// <param name="querySettings">The settings to use in query composition.</param>
/// <returns>The new <see cref="IQueryable"/> after the query has been applied to.</returns>
public virtual IQueryable ApplyTo(IQueryable query, ODataQuerySettings querySettings)
{
if (query == null)
{
throw Error.ArgumentNull("query");
}
if (querySettings == null)
{
throw Error.ArgumentNull("querySettings");
}
IQueryable result = query;
// Construct the actual query and apply them in the following order: filter, orderby, skip, top
if (Filter != null)
{
result = Filter.ApplyTo(result, querySettings, _assembliesResolver);
}
if (Count != null)
{
if (Request.ODataProperties().TotalCount == null)
{
long?count = Count.GetEntityCount(result);
if (count.HasValue)
{
Request.ODataProperties().TotalCount = count.Value;
}
}
if (ODataCountMediaTypeMapping.IsCountRequest(Request))
{
return(result);
}
}
OrderByQueryOption orderBy = OrderBy;
// $skip or $top require a stable sort for predictable results.
// Result limits require a stable sort to be able to generate a next page link.
// If either is present in the query and we have permission,
// generate an $orderby that will produce a stable sort.
if (querySettings.EnsureStableOrdering &&
(Skip != null || Top != null || querySettings.PageSize.HasValue))
{
// If there is no OrderBy present, we manufacture a default.
// If an OrderBy is already present, we add any missing
// properties necessary to make a stable sort.
// Instead of failing early here if we cannot generate the OrderBy,
// let the IQueryable backend fail (if it has to).
orderBy = orderBy == null
? GenerateDefaultOrderBy(Context)
: EnsureStableSortOrderBy(orderBy, Context);
}
if (orderBy != null)
{
result = orderBy.ApplyTo(result, querySettings);
}
if (Skip != null)
{
result = Skip.ApplyTo(result, querySettings);
}
if (Top != null)
{
result = Top.ApplyTo(result, querySettings);
}
if (SelectExpand != null)
{
SelectExpandClause processedClause = SelectExpand.ProcessLevels();
SelectExpandQueryOption newSelectExpand = new SelectExpandQueryOption(
SelectExpand.RawSelect,
SelectExpand.RawExpand,
SelectExpand.Context,
processedClause);
Request.ODataProperties().SelectExpandClause = processedClause;
result = newSelectExpand.ApplyTo(result, querySettings);
}
if (querySettings.PageSize.HasValue)
{
bool resultsLimited;
result = LimitResults(result, querySettings.PageSize.Value, out resultsLimited);
if (resultsLimited && Request.RequestUri != null && Request.RequestUri.IsAbsoluteUri && Request.ODataProperties().NextLink == null)
{
Uri nextPageLink = GetNextPageLink(Request, querySettings.PageSize.Value);
Request.ODataProperties().NextLink = nextPageLink;
}
}
return(result);
}
public void ProcessLevelsCorrectly_WithMaxNestedLevels()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: null,
expand: "Parent($expand=DerivedAncestors($levels=max);$levels=2)",
context: context);
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
Assert.True(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
// Level 1 of Parent.
var parent = Assert.IsType<ExpandedNavigationSelectItem>(clause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)parent.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(parent.LevelsOption);
var clauseOfParent = parent.SelectAndExpand;
Assert.True(clauseOfParent.AllSelected);
Assert.Equal(2, clauseOfParent.SelectedItems.Count());
// Level 1 of DerivedAncestors.
var derivedAncestors = Assert.Single(
clauseOfParent.SelectedItems.OfType<ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "DerivedAncestors")
);
Assert.Null(derivedAncestors.LevelsOption);
var clauseOfDerivedAncestors = derivedAncestors.SelectAndExpand;
Assert.True(clauseOfDerivedAncestors.AllSelected);
Assert.Equal(0, clauseOfDerivedAncestors.SelectedItems.Count());
// Level 2 of Parent.
parent = Assert.Single(
clauseOfParent.SelectedItems.OfType<ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "Parent")
);
Assert.Null(parent.LevelsOption);
clauseOfParent = parent.SelectAndExpand;
Assert.True(clauseOfParent.AllSelected);
Assert.Equal(0, clauseOfParent.SelectedItems.Count());
}
public void ProcessLevelsCorrectly_WithMultipleProperties()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: null,
expand: "Parent($expand=Parent($levels=max),DerivedAncestors($levels=2;$select=ID)),BaseEntities($levels=2)",
context: context);
selectExpand.LevelsMaxLiteralExpansionDepth = 3;
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
Assert.True(clause.AllSelected);
Assert.Equal(2, clause.SelectedItems.Count());
// Top level Parent.
var parent = Assert.Single(clause.SelectedItems.OfType<ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "Parent"));
Assert.Null(parent.LevelsOption);
var clauseOfParent = parent.SelectAndExpand;
Assert.True(clauseOfParent.AllSelected);
Assert.Equal(2, clauseOfParent.SelectedItems.Count());
// Level 1 of inline Parent.
var inlineParent = Assert.Single(clauseOfParent.SelectedItems.OfType<ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "Parent"));
Assert.Null(inlineParent.LevelsOption);
// Level 2 of inline Parent.
var inlineParentClause = inlineParent.SelectAndExpand;
Assert.True(inlineParentClause.AllSelected);
Assert.Equal(1, inlineParentClause.SelectedItems.Count());
inlineParent = Assert.IsType<ExpandedNavigationSelectItem>(inlineParentClause.SelectedItems.Single());
Assert.Equal(
"Parent",
((NavigationPropertySegment)inlineParent.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(inlineParent.LevelsOption);
inlineParentClause = inlineParent.SelectAndExpand;
Assert.True(inlineParentClause.AllSelected);
Assert.Equal(0, inlineParentClause.SelectedItems.Count());
// Level 1 of inline DerivedAncestors.
var inlineDerivedAncestors = Assert.Single(clauseOfParent.SelectedItems.OfType<ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "DerivedAncestors"));
Assert.Null(inlineDerivedAncestors.LevelsOption);
// Level 2 of inline DerivedAncestors.
var inlineDerivedAncestorsClause = inlineDerivedAncestors.SelectAndExpand;
Assert.False(inlineDerivedAncestorsClause.AllSelected);
Assert.Equal(3, inlineDerivedAncestorsClause.SelectedItems.Count());
var idItem = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType<PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is PropertySegment));
Assert.Equal("ID", ((PropertySegment)idItem.SelectedPath.FirstSegment).Property.Name);
var derivedAncestorsItem = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType<PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is NavigationPropertySegment));
Assert.Equal(
"DerivedAncestors",
((NavigationPropertySegment)derivedAncestorsItem.SelectedPath.FirstSegment).NavigationProperty.Name);
inlineDerivedAncestors = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType<ExpandedNavigationSelectItem>());
Assert.Equal(
"DerivedAncestors",
((NavigationPropertySegment)inlineDerivedAncestors.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(inlineDerivedAncestors.LevelsOption);
inlineDerivedAncestorsClause = inlineDerivedAncestors.SelectAndExpand;
Assert.False(inlineDerivedAncestorsClause.AllSelected);
Assert.Equal(1, inlineDerivedAncestorsClause.SelectedItems.Count());
idItem = Assert.Single(inlineDerivedAncestorsClause.SelectedItems.OfType<PathSelectItem>());
Assert.Equal("ID", ((PropertySegment)idItem.SelectedPath.FirstSegment).Property.Name);
// Level 1 of BaseEntities.
var baseEntities = Assert.Single(clause.SelectedItems.OfType<ExpandedNavigationSelectItem>().Where(
item => item.PathToNavigationProperty.FirstSegment is NavigationPropertySegment &&
((NavigationPropertySegment)item.PathToNavigationProperty.FirstSegment).NavigationProperty.Name == "BaseEntities"));
Assert.Null(baseEntities.LevelsOption);
// Level 2 of BaseEntities.
var baseEntitiesClause = baseEntities.SelectAndExpand;
Assert.True(baseEntitiesClause.AllSelected);
Assert.Equal(1, baseEntitiesClause.SelectedItems.Count());
baseEntities = Assert.IsType<ExpandedNavigationSelectItem>(baseEntitiesClause.SelectedItems.Single());
Assert.Equal(
"BaseEntities",
((NavigationPropertySegment)baseEntities.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(baseEntities.LevelsOption);
baseEntitiesClause = baseEntities.SelectAndExpand;
Assert.True(baseEntitiesClause.AllSelected);
Assert.Equal(0, baseEntitiesClause.SelectedItems.Count());
}
public void ProcessLevelsCorrectly_NotAllSelected()
{
// Arrange
var model = ODataLevelsTest.GetEdmModel();
var context = new ODataQueryContext(
model,
model.FindDeclaredType("System.Web.OData.Routing.LevelsEntity"));
var selectExpand = new SelectExpandQueryOption(
select: "Name",
expand: "Parent($select=ID;$levels=max)",
context: context);
// Act
SelectExpandClause clause = selectExpand.ProcessLevels();
// Assert
// Level 1.
Assert.False(clause.AllSelected);
Assert.Equal(3, clause.SelectedItems.Count());
var nameSelectItem = Assert.Single(clause.SelectedItems.OfType<PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is PropertySegment));
Assert.Equal("Name", ((PropertySegment)nameSelectItem.SelectedPath.FirstSegment).Property.Name);
var parentSelectItem = Assert.Single(clause.SelectedItems.OfType<PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is NavigationPropertySegment));
Assert.Equal(
"Parent",
((NavigationPropertySegment)parentSelectItem.SelectedPath.FirstSegment).NavigationProperty.Name);
var expandedItem = Assert.Single(clause.SelectedItems.OfType<ExpandedNavigationSelectItem>());
Assert.Equal(
"Parent",
((NavigationPropertySegment)expandedItem.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(expandedItem.LevelsOption);
// Level 2.
clause = expandedItem.SelectAndExpand;
Assert.False(clause.AllSelected);
Assert.Equal(3, clause.SelectedItems.Count());
var idSelectItem = Assert.Single(clause.SelectedItems.OfType<PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is PropertySegment));
Assert.Equal("ID", ((PropertySegment)idSelectItem.SelectedPath.FirstSegment).Property.Name);
parentSelectItem = Assert.Single(clause.SelectedItems.OfType<PathSelectItem>().Where(
item => item.SelectedPath.FirstSegment is NavigationPropertySegment));
Assert.Equal(
"Parent",
((NavigationPropertySegment)parentSelectItem.SelectedPath.FirstSegment).NavigationProperty.Name);
expandedItem = Assert.Single(clause.SelectedItems.OfType<ExpandedNavigationSelectItem>());
Assert.Equal(
"Parent",
((NavigationPropertySegment)expandedItem.PathToNavigationProperty.FirstSegment).NavigationProperty.Name);
Assert.Null(expandedItem.LevelsOption);
clause = expandedItem.SelectAndExpand;
Assert.False(clause.AllSelected);
Assert.Equal(1, clause.SelectedItems.Count());
idSelectItem = Assert.IsType<PathSelectItem>(clause.SelectedItems.Single());
Assert.Equal("ID", ((PropertySegment)idSelectItem.SelectedPath.FirstSegment).Property.Name);
}
public void SelectExpandClause_Property_ParsesRawSelectAndRawExpand()
{
// Arrange
IEdmModel model = _model.Model;
_model.Model.SetAnnotationValue<ClrTypeAnnotation>(_model.Customer, new ClrTypeAnnotation(typeof(Customer)));
ODataQueryContext context = new ODataQueryContext(model, typeof(Customer));
SelectExpandQueryOption option = new SelectExpandQueryOption("ID,Name,SimpleEnum,Orders", "Orders", context);
// Act
SelectExpandClause selectExpandClause = option.SelectExpandClause;
// Assert
Assert.NotEmpty(selectExpandClause.SelectedItems.OfType<PathSelectItem>());
Assert.NotEmpty(selectExpandClause.SelectedItems.OfType<ExpandedNavigationSelectItem>());
}
public void SelectExpandClause_Property_ParsesWithEdmTypeAndNavigationSource()
{
// Arrange
IEdmModel model = _model.Model;
_model.Model.SetAnnotationValue(_model.Customer, new ClrTypeAnnotation(typeof(Customer)));
ODataPath odataPath = new ODataPath(new EntitySetPathSegment(_model.Customers));
ODataQueryContext context = new ODataQueryContext(model, _model.Customer, odataPath);
SelectExpandQueryOption option = new SelectExpandQueryOption("ID,Name,SimpleEnum,Orders", "Orders", context);
// Act
SelectExpandClause selectExpandClause = option.SelectExpandClause;
// Assert
Assert.NotEmpty(selectExpandClause.SelectedItems.OfType<PathSelectItem>());
Assert.NotEmpty(selectExpandClause.SelectedItems.OfType<ExpandedNavigationSelectItem>());
}