protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
Expression body = _navigationPropertyPathLambda.Body;
if (body.NodeType == ExpressionType.Convert)
{
body = ((UnaryExpression)body).Operand;
}
if (body.NodeType == ExpressionType.Extension)
{
var sub = (SubQueryExpression)body;
var whereClause = (WhereClause)sub.QueryModel.BodyClauses.First();
body = sub.QueryModel.MainFromClause.FromExpression;
var member = body as MemberExpression;
if (member != null)
{
var name = $"{member.Member.DeclaringType.FullName}-{member.Member.Name}";
_expressions.Add(name, new HashSet <Expression>(new[] { whereClause.Predicate }));
}
}
var navigationPropertyPath = Resolve(_navigationPropertyPathLambda.Parameters[0], body, clauseGenerationContext) as MemberExpression;
if (navigationPropertyPath == null)
{
throw new InvalidOperationException(CoreStrings.InvalidComplexPropertyExpression(_navigationPropertyPathLambda));
}
var includeResultOperator = new ReplaceIncludeResultOperator(navigationPropertyPath, _expressions);
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
return(includeResultOperator);
}
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var resultOperator = new FetchOneRequest(RelationMember);
clauseGenerationContext.AddContextInfo(this, resultOperator);
return(resultOperator);
}
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var resultOperator = CreateFetchRequest();
// Store a mapping between this node and the resultOperator so that a later ThenFetch... node may add its request to the resultOperator.
clauseGenerationContext.AddContextInfo(this, resultOperator);
return(resultOperator);
}
public void GetResolvedResultSelector()
{
ClauseGenerationContext.AddContextInfo(_node, _joinClause);
var resolvedExpression = _node.GetResolvedResultSelector(ClauseGenerationContext);
var expectedExpression = ExpressionHelper.Resolve <string, string, string> (SourceClause, _joinClause, (o, i) => o.ToString() + i.ToString());
ExpressionTreeComparer.CheckAreEqualTrees(expectedExpression, resolvedExpression);
}
private MainFromClause CreateMainFromClause(ClauseGenerationContext clauseGenerationContext)
{
var fromClause = new MainFromClause(
AssociatedIdentifier,
QuerySourceElementType,
ParsedExpression);
clauseGenerationContext.AddContextInfo(this, fromClause);
return(fromClause);
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
var queryAnnotationResultOperator
= (QueryAnnotationResultOperator)clauseGenerationContext.GetContextInfo(Source);
((IncludeQueryAnnotation)queryAnnotationResultOperator.Annotation)
.AppendToNavigationPath(_navigationPropertyPathLambda.GetComplexPropertyAccess());
clauseGenerationContext.AddContextInfo(this, queryAnnotationResultOperator);
}
public override void SetUp()
{
base.SetUp();
_cookSource = new MainSourceExpressionNode("s", Expression.Constant(new[] { new Cook() }));
_cookClause = ExpressionHelper.CreateMainFromClause <Cook> ();
ClauseGenerationContext.AddContextInfo(_cookSource, _cookClause);
_castToChefMethod = ReflectionUtility.GetMethod(() => ((IQueryable <Cook[]>)null).Cast <Chef>());
_node = new CastExpressionNode(CreateParseInfo(_cookSource, "s", _castToChefMethod));
}
protected override QueryModel ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
var includeResultOperator
= (IncludeResultOperator)clauseGenerationContext.GetContextInfo(Source);
includeResultOperator.AppendToNavigationPath(_navigationPropertyPathLambda.GetComplexPropertyAccess());
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
return(queryModel);
}
public void Resolve()
{
ClauseGenerationContext.AddContextInfo(_node, _joinClause);
var parameter = Expression.Parameter(typeof(string), "s");
var result = _node.Resolve(parameter, parameter, ClauseGenerationContext);
var expectedResult = ExpressionHelper.Resolve <string, string, string> (SourceClause, _joinClause, (o, i) => o.ToString() + i.ToString());
ExpressionTreeComparer.CheckAreEqualTrees(expectedResult, result);
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
Utils.CheckNotNull("queryModel", queryModel);
var groupByClause = new GroupByClause(GetResolvedSelector(clauseGenerationContext), Selector, intoIdentifier);
queryModel.BodyClauses.Add(groupByClause);
clauseGenerationContext.AddContextInfo(this, groupByClause);
queryModel.SelectClause.Selector = GetResolvedAdaptedSelector(clauseGenerationContext);
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
LinqUtility.CheckNotNull("queryModel", queryModel);
var traversalClause = new TraversalClause(StartVertex, identifier);
queryModel.BodyClauses.Add(traversalClause);
clauseGenerationContext.AddContextInfo(this, traversalClause);
//queryModel.SelectClause.Selector = GetResolvedAdaptedSelector(clauseGenerationContext);
}
public override void SetUp()
{
base.SetUp();
_sourceFetchRequest = new TestFetchRequest(typeof(Cook).GetProperty("Substitution"));
_sourceFetchRequestNode = new MainSourceExpressionNode("x", Expression.Constant(new Cook[0]));
ClauseGenerationContext.AddContextInfo(_sourceFetchRequestNode, _sourceFetchRequest);
QueryModel.ResultOperators.Add(_sourceFetchRequest);
_node = new ThenFetchOneExpressionNode(CreateParseInfo(_sourceFetchRequestNode), ExpressionHelper.CreateLambdaExpression <Cook, Cook> (s => s.Substitution));
}
/// <summary>
/// Copy from EntityFramework Core source code. Modified to store predict expressions.
/// </summary>
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
var includeResultOperator = (ReplaceIncludeResultOperator)clauseGenerationContext.GetContextInfo(Source);
includeResultOperator.AppendToNavigationPath(GetComplexPropertyAccess(_navigationPropertyPathLambda));
foreach (var expression in _expressions)
{
includeResultOperator.Expressions.Add(expression.Key, expression.Value);
}
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
protected override void ApplyNodeSpecificSemantics(
QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
var includeResultOperator
= (IncludeResultOperator)clauseGenerationContext.GetContextInfo(Source);
includeResultOperator
.AppendToNavigationPath(
NavigationPropertyPathLambda.GetComplexPropertyAccess(
nameof(EntityFrameworkQueryableExtensions.ThenInclude)));
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
}
public void Resolve_ReplacesParameter_WithQuerySourceReference()
{
var expression = ExpressionHelper.CreateLambdaExpression <int, bool> (i => i > 5);
var clause = ExpressionHelper.CreateMainFromClause_Int();
ClauseGenerationContext.AddContextInfo(_node, clause);
var result = _node.Resolve(expression.Parameters[0], expression.Body, ClauseGenerationContext);
var expectedResult = Expression.MakeBinary(ExpressionType.GreaterThan, new QuerySourceReferenceExpression(clause), Expression.Constant(5));
ExpressionTreeComparer.CheckAreEqualTrees(expectedResult, result);
}
public void Resolve()
{
var querySource = ExpressionHelper.CreateConcatResultOperator();
ClauseGenerationContext.AddContextInfo(_node, querySource);
var lambdaExpression = ExpressionHelper.CreateLambdaExpression <int, string> (u => u.ToString());
var result = _node.Resolve(lambdaExpression.Parameters[0], lambdaExpression.Body, ClauseGenerationContext);
var expectedResult = ExpressionHelper.Resolve <int, string> (querySource, u => u.ToString());
ExpressionTreeComparer.CheckAreEqualTrees(expectedResult, result);
}
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var navigationPropertyPath
= Source.Resolve(
_navigationPropertyPathLambda.Parameters[0],
_navigationPropertyPathLambda.Body,
clauseGenerationContext);
var includeResultOperator = new IncludeResultOperator(navigationPropertyPath);
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
return(includeResultOperator);
}
public void Resolve()
{
var querySource = ExpressionHelper.CreateGroupResultOperator();
ClauseGenerationContext.AddContextInfo(_nodeWithoutElementSelector, querySource);
var lambdaExpression =
ExpressionHelper.CreateLambdaExpression <IGrouping <string, string>, Tuple <string, int> > (g => Tuple.Create(g.Key, g.Count()));
var result = _nodeWithoutElementSelector.Resolve(lambdaExpression.Parameters[0], lambdaExpression.Body, ClauseGenerationContext);
var expectedResult = ExpressionHelper.Resolve <IGrouping <string, string>, Tuple <string, int> > (querySource, g => Tuple.Create(g.Key, g.Count()));
ExpressionTreeComparer.CheckAreEqualTrees(expectedResult, result);
}
protected override QueryModel ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
var previousFetchRequest = clauseGenerationContext.GetContextInfo(Source) as FetchRequestBase;
if (previousFetchRequest == null)
{
throw new ParserException("ThenFetchMany must directly follow another Fetch request.");
}
FetchRequestBase innerFetchRequest = new FetchManyRequest(RelationMember);
innerFetchRequest = previousFetchRequest.GetOrAddInnerFetchRequest(innerFetchRequest);
clauseGenerationContext.AddContextInfo(this, innerFetchRequest);
return(queryModel);
}
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var navigationPropertyPath
= Source.Resolve(
_navigationPropertyPathLambda.Parameters[0],
_navigationPropertyPathLambda.Body,
clauseGenerationContext);
var queryAnnotationResultOperator = new QueryAnnotationResultOperator(
Expression.Constant(
new IncludeQueryAnnotation(navigationPropertyPath)));
clauseGenerationContext.AddContextInfo(this, queryAnnotationResultOperator);
return(queryAnnotationResultOperator);
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
ArgumentUtility.CheckNotNull("queryModel", queryModel);
var previousFetchRequest = clauseGenerationContext.GetContextInfo(Source) as FetchRequestBase;
if (previousFetchRequest == null)
{
throw new NotSupportedException("ThenFetchMany must directly follow another Fetch request.");
}
var innerFetchRequest = CreateFetchRequest();
innerFetchRequest = previousFetchRequest.GetOrAddInnerFetchRequest(innerFetchRequest);
// Store a mapping between this node and the innerFetchRequest so that a later ThenFetch... node may add its request to the innerFetchRequest.
clauseGenerationContext.AddContextInfo(this, innerFetchRequest);
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
ArgumentUtility.CheckNotNull("queryModel", queryModel);
var existingMatchingFetchRequest =
queryModel.ResultOperators.OfType <FetchRequestBase> ().FirstOrDefault(r => r.RelationMember.Equals(RelationMember));
if (existingMatchingFetchRequest != null)
{
// Store a mapping between this node and the resultOperator so that a later ThenFetch... node may add its request to the resultOperator.
clauseGenerationContext.AddContextInfo(this, existingMatchingFetchRequest);
}
else
{
base.ApplyNodeSpecificSemantics(queryModel, clauseGenerationContext);
}
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel,
ClauseGenerationContext clauseGenerationContext)
{
var nestClause = new NestClause(
ResultSelector.Parameters[1].Name,
ResultSelector.Parameters[1].Type,
InnerSequence,
GetResolvedKeySelector(clauseGenerationContext),
IsLeftOuterNest);
clauseGenerationContext.AddContextInfo(this, nestClause);
queryModel.BodyClauses.Add(nestClause);
var selectClause = queryModel.SelectClause;
selectClause.Selector = GetResolvedResultSelector(clauseGenerationContext);
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
protected override void ApplyNodeSpecificSemantics(
QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
var includeResultOperator
= (IncludeResultOperator)clauseGenerationContext.GetContextInfo(Source);
if (!NavigationPropertyPathLambda.TryGetComplexPropertyAccess(out var propertyPath))
{
throw new InvalidOperationException(
CoreStrings.InvalidIncludeLambdaExpression(
nameof(EntityFrameworkQueryableExtensions.ThenInclude),
NavigationPropertyPathLambda));
}
includeResultOperator.AppendToNavigationPath(propertyPath);
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var prm = Expression.Parameter(typeof(object));
var pathFromQuerySource = Resolve(prm, prm, clauseGenerationContext);
if (!(_navigationPropertyPathLambda.Body is MemberExpression))
{
throw new InvalidOperationException(CoreStrings.InvalidPropertyExpression(_navigationPropertyPathLambda));
}
var includeResultOperator = new IncludeResultOperator(
_navigationPropertyPathLambda.GetComplexPropertyAccess("?not sure what goes here?").Select(p => p.Name),
pathFromQuerySource);
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
return(includeResultOperator);
}
public void Resolve_ReplacesParameter_WithProjection()
{
var expression = ExpressionHelper.CreateLambdaExpression <int, Tuple <short, int> > (i => Tuple.Create((short)1, 2));
var querySource = ExpressionHelper.CreateGroupResultOperator();
ClauseGenerationContext.AddContextInfo(_nodeWithElementSelector.Source, querySource);
var result = _nodeWithElementSelector.Resolve(expression.Parameters[0], expression.Body, ClauseGenerationContext);
var expectedResult = Expression.Call(
typeof(Tuple),
"Create",
new[] { typeof(short), typeof(int) },
Expression.Constant((short)1),
Expression.Constant(2));
ExpressionTreeComparer.CheckAreEqualTrees(expectedResult, result);
}
protected override QueryModel ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
Utils.CheckNotNull("queryModel", queryModel);
if (IsLetNode)
{
// For let nodes, we insert a LetClause instance, then adapt the SelectClause to select the data bubbling out of the LetClause.
var resolvedLetExpression = GetResolvedLetExpression(clauseGenerationContext);
var letClause = new LetClause(_letConstruction.Constructor.GetParameters()[1].Name, resolvedLetExpression);
queryModel.BodyClauses.Add(letClause);
clauseGenerationContext.AddContextInfo(this, letClause);
queryModel.SelectClause.Selector = GetResolvedAdaptedSelector(clauseGenerationContext);
return(queryModel);
}
return(base.ApplyNodeSpecificSemantics(queryModel, clauseGenerationContext));
}
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var navigationPropertyPath
= Source.Resolve(
_navigationPropertyPathLambda.Parameters[0],
_navigationPropertyPathLambda.Body,
clauseGenerationContext) as MemberExpression;
if (navigationPropertyPath == null)
{
throw new InvalidOperationException(
CoreStrings.InvalidComplexPropertyExpression(_navigationPropertyPathLambda));
}
var includeResultOperator = new IncludeResultOperator(navigationPropertyPath);
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
return(includeResultOperator);
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
protected override ResultOperatorBase CreateResultOperator(ClauseGenerationContext clauseGenerationContext)
{
var prm = Expression.Parameter(typeof(object));
var pathFromQuerySource = Resolve(prm, prm, clauseGenerationContext);
if (!NavigationPropertyPathLambda.TryGetComplexPropertyAccess(out var propertyPath))
{
throw new InvalidOperationException(
CoreStrings.InvalidIncludeLambdaExpression(
nameof(EntityFrameworkQueryableExtensions.Include),
NavigationPropertyPathLambda));
}
var includeResultOperator = new IncludeResultOperator(
propertyPath.Select(p => p.Name),
pathFromQuerySource);
clauseGenerationContext.AddContextInfo(this, includeResultOperator);
return(includeResultOperator);
}
protected override void ApplyNodeSpecificSemantics(QueryModel queryModel, ClauseGenerationContext clauseGenerationContext)
{
Utils.CheckNotNull("queryModel", queryModel);
var resolvedCollectionSelector = GetResolvedCollectionSelector(clauseGenerationContext);
var resolvedLetSelector = GetResolvedLetSelector(clauseGenerationContext);
var clause = new LetClause(CollectionSelector.Parameters[1].Name, resolvedLetSelector, resolvedCollectionSelector);
queryModel.BodyClauses.Add(clause);
//var clause = new AdditionalFromClause(ResultSelector.Parameters[1].Name, ResultSelector.Parameters[1].Type, resolvedCollectionSelector);
//queryModel.BodyClauses.Add(clause);
clauseGenerationContext.AddContextInfo(this, clause);
var selectClause = queryModel.SelectClause;
selectClause.Selector =
//GetResolvedCollectionSelector(clauseGenerationContext);
GetResolvedResultSelector(clauseGenerationContext);
}
