public Expression HandleLeave( SelectionVisitorContext context, IFieldSelection selection, Expression expression) { var argumentName = context.SelectionContext.FilterArgumentName; if (context.TryGetValueNode(argumentName, out IValueNode? filter) && selection.Field.Arguments[argumentName].Type is InputObjectType iot && iot is IFilterInputType fit) { var visitorContext = new QueryableFilterVisitorContext( iot, fit.EntityType, context.Conversion, false); QueryableFilterVisitor.Default.Visit(filter, visitorContext); return(Expression.Call( typeof(Enumerable), "Where", new[] { fit.EntityType }, expression, visitorContext.CreateFilter())); } return(expression); }
public Expression HandleLeave( SelectionVisitorContext context, IFieldSelection selection, Expression expression) { if (context.TryGetValueNode(ArgumentName, out IValueNode sortArgument) && selection.Field.Arguments[ArgumentName].Type is InputObjectType iot && iot is ISortInputType fit) { var visitor = new QueryableSortVisitor(iot, fit.EntityType); sortArgument.Accept(visitor); return(visitor.Compile(expression)); } return(expression); }
public Expression HandleLeave( SelectionVisitorContext context, IFieldSelection selection, Expression expression) { var argumentName = context.SelectionContext.SortingArgumentName; if (context.TryGetValueNode(argumentName, out IValueNode? sortArgument) && selection.Field.Arguments[argumentName].Type is InputObjectType iot && iot is ISortInputType fit) { var visitorContext = new QueryableSortVisitorContext( iot, fit.EntityType, false); QueryableSortVisitor.Default.Visit(sortArgument, visitorContext); return(visitorContext.Compile(expression)); } return(expression); }
public Expression HandleLeave( SelectionVisitorContext context, IFieldSelection selection, Expression expression) { IFilterConvention convention = context.SelectionContext.FilterConvention; NameString argumentName = convention.GetArgumentName(); if (context.TryGetValueNode(argumentName, out IValueNode? filter) && selection.Field.Arguments[argumentName].Type is InputObjectType iot && iot is IFilterInputType fit && convention.TryGetVisitorDefinition( out FilterExpressionVisitorDefinition? defintion)) { var visitorContext = new QueryableFilterVisitorContext( iot, fit.EntityType, defintion, context.Conversion, false); QueryableFilterVisitor.Default.Visit(filter, visitorContext); if (visitorContext.TryCreateLambda( out LambdaExpression? filterExpression)) { return(Expression.Call( typeof(Enumerable), nameof(Enumerable.Where), new[] { fit.EntityType }, expression, filterExpression)); } else { context.ReportErrors(visitorContext.Errors); } } return(expression); }
public Expression HandleLeave( SelectionVisitorContext context, IFieldSelection selection, Expression expression) { if (context.TryGetValueNode("where", out IValueNode filter) && selection.Field.Arguments["where"].Type is InputObjectType iot && iot is IFilterInputType fit) { var visitor = new QueryableFilterVisitor( iot, fit.EntityType, context.Conversion); filter.Accept(visitor); return(Expression.Call( typeof(Enumerable), "Where", new[] { fit.EntityType }, expression, visitor.CreateFilter())); } return(expression); }