protected virtual void IncludeNavigations([NotNull] QueryModel queryModel)
{
Check.NotNull(queryModel, nameof(queryModel));
var includeSpecifications
= QueryCompilationContext.QueryAnnotations
.OfType <IncludeQueryAnnotation>()
.Select(annotation =>
{
var navigationPath
= BindNavigationPathMemberExpression(
(MemberExpression)annotation.NavigationPropertyPath,
(ns, _) => BindChainedNavigations(ns, annotation.ChainedNavigationProperties).ToArray());
if (navigationPath == null)
{
throw new InvalidOperationException(
Strings.IncludeNonBindableExpression(annotation.NavigationPropertyPath));
}
return(new IncludeSpecification(annotation.QuerySource, navigationPath));
})
.ToList();
var querySourceTracingExpressionTreeVisitor
= new QuerySourceTracingExpressionTreeVisitor();
foreach (var includeSpecification in includeSpecifications
.OrderBy(a => a.NavigationPath.First().PointsToPrincipal()))
{
var resultQuerySourceReferenceExpression
= querySourceTracingExpressionTreeVisitor
.FindResultQuerySourceReferenceExpression(
queryModel.SelectClause.Selector,
includeSpecification.QuerySource);
if (resultQuerySourceReferenceExpression != null)
{
var accessorLambda
= AccessorFindingExpressionTreeVisitor
.FindAccessorLambda(
resultQuerySourceReferenceExpression,
queryModel.SelectClause.Selector,
Expression.Parameter(queryModel.SelectClause.Selector.Type));
QueryCompilationContext.Logger
.LogInformation(
includeSpecification.NavigationPath.Join("."),
Strings.LogIncludingNavigation);
IncludeNavigations(
includeSpecification.QuerySource,
_expression.Type.GetSequenceType(),
accessorLambda,
includeSpecification.NavigationPath,
QuerySourceRequiresTracking(includeSpecification.QuerySource));
QueryCompilationContext
.AddTrackableInclude(
resultQuerySourceReferenceExpression.ReferencedQuerySource,
includeSpecification.NavigationPath);
}
}
}
protected virtual void IncludeNavigations(
[NotNull] QueryModel queryModel,
[NotNull] Type resultType)
{
Check.NotNull(queryModel, "queryModel");
Check.NotNull(resultType, "resultType");
var querySourceTracingExpressionTreeVisitor
= new QuerySourceTracingExpressionTreeVisitor();
foreach (var include
in from queryAnnotation in _queryAnnotations
let includeResultOperator = queryAnnotation.ResultOperator as IncludeResultOperator
where includeResultOperator != null
let navigationPath
= BindNavigationPathMemberExpression(
(MemberExpression)includeResultOperator.NavigationPropertyPath,
(ns, _) => BindChainedNavigations(ns, includeResultOperator.ChainedNavigationProperties).ToArray())
orderby navigationPath != null &&
navigationPath.First().PointsToPrincipal
select new
{
navigationPath,
queryAnnotation.QuerySource,
includeResultOperator.NavigationPropertyPath
})
{
if (include.navigationPath != null)
{
var resultQuerySourceReferenceExpression
= querySourceTracingExpressionTreeVisitor
.FindResultQuerySourceReferenceExpression(
queryModel.SelectClause.Selector,
include.QuerySource);
if (resultQuerySourceReferenceExpression != null)
{
var accessorLambda
= AccessorFindingExpressionTreeVisitor
.FindAccessorLambda(
resultQuerySourceReferenceExpression,
queryModel.SelectClause.Selector,
Expression.Parameter(queryModel.SelectClause.Selector.Type));
QueryCompilationContext.Logger
.WriteInformation(
include.navigationPath.Join("."),
Strings.LogIncludingNavigation);
IncludeNavigations(
include.QuerySource,
resultType,
accessorLambda,
include.navigationPath);
}
}
else
{
throw new InvalidOperationException(
Strings.IncludeNonBindableExpression(include.NavigationPropertyPath));
}
}
}
protected virtual void IncludeNavigations(
[NotNull] QueryModel queryModel,
[NotNull] Type resultType,
[NotNull] ICollection <QueryAnnotation> queryAnnotations)
{
Check.NotNull(queryModel, "queryModel");
Check.NotNull(resultType, "resultType");
Check.NotNull(queryAnnotations, "queryAnnotations");
var querySourceTracingExpressionTreeVisitor
= new QuerySourceTracingExpressionTreeVisitor();
foreach (var queryAnnotation in queryAnnotations)
{
var includeResultOperator
= queryAnnotation.ResultOperator as IncludeResultOperator;
if (includeResultOperator != null)
{
var navigation
= BindNavigationMemberExpression(
(MemberExpression)includeResultOperator.NavigationPropertyPath,
(n, _) => n);
if (navigation != null)
{
var resultQuerySourceReferenceExpression
= querySourceTracingExpressionTreeVisitor
.FindResultQuerySourceReferenceExpression(
queryModel.SelectClause.Selector,
queryAnnotation.QuerySource);
if (resultQuerySourceReferenceExpression != null)
{
var accessorLambda
= AccessorFindingExpressionTreeVisitor
.FindAccessorLambda(
resultQuerySourceReferenceExpression,
queryModel.SelectClause.Selector,
Expression.Parameter(queryModel.SelectClause.Selector.Type));
QueryCompilationContext.Logger
.WriteInformation(
navigation,
Strings.FormatLogIncludingNavigation);
IncludeNavigation(
queryAnnotation.QuerySource,
resultType,
accessorLambda,
navigation);
}
}
else
{
throw new NotImplementedException(
Strings.FormatIncludeNonBindableExpression(includeResultOperator.NavigationPropertyPath));
}
}
}
}