private static Expression HandleGroup(
EntityQueryModelVisitor entityQueryModelVisitor,
GroupResultOperator groupResultOperator,
QueryModel queryModel)
{
var keySelector
= entityQueryModelVisitor
.ReplaceClauseReferences(
groupResultOperator.KeySelector,
queryModel.MainFromClause);
var elementSelector
= entityQueryModelVisitor
.ReplaceClauseReferences(
groupResultOperator.ElementSelector,
queryModel.MainFromClause);
var expression
= Expression.Call(
entityQueryModelVisitor.LinqOperatorProvider.GroupBy
.MakeGenericMethod(
entityQueryModelVisitor.Expression.Type.GetSequenceType(),
keySelector.Type,
elementSelector.Type),
entityQueryModelVisitor.Expression,
Expression.Lambda(keySelector, entityQueryModelVisitor.CurrentParameter),
Expression.Lambda(elementSelector, entityQueryModelVisitor.CurrentParameter));
entityQueryModelVisitor.CurrentParameter
= Expression.Parameter(expression.Type.GetSequenceType(), groupResultOperator.ItemName);
entityQueryModelVisitor
.AddOrUpdateMapping(groupResultOperator, entityQueryModelVisitor.CurrentParameter);
return(expression);
}
private static Expression HandleGroup(
EntityQueryModelVisitor entityQueryModelVisitor,
GroupResultOperator groupResultOperator,
QueryModel queryModel)
{
var keySelector
= entityQueryModelVisitor
.ReplaceClauseReferences(
groupResultOperator.KeySelector,
queryModel.MainFromClause);
var elementSelector
= entityQueryModelVisitor
.ReplaceClauseReferences(
groupResultOperator.ElementSelector,
queryModel.MainFromClause);
var expression
= Expression.Call(
entityQueryModelVisitor.LinqOperatorProvider.GroupBy
.MakeGenericMethod(
entityQueryModelVisitor.Expression.Type.GetSequenceType(),
keySelector.Type,
elementSelector.Type),
entityQueryModelVisitor.Expression,
Expression.Lambda(keySelector, entityQueryModelVisitor.CurrentParameter),
Expression.Lambda(elementSelector, entityQueryModelVisitor.CurrentParameter));
entityQueryModelVisitor.CurrentParameter
= Expression.Parameter(expression.Type.GetSequenceType(), groupResultOperator.ItemName);
entityQueryModelVisitor
.AddOrUpdateMapping(groupResultOperator, entityQueryModelVisitor.CurrentParameter);
return expression;
}