public async Task InvokeAsync(IMiddlewareContext context)
{
await _next(context).ConfigureAwait(false);
IValueNode filter = context.ArgumentLiteral <IValueNode>(_contextData.ArgumentName);
if (filter is NullValueNode)
{
return;
}
IQueryable <T>?source = null;
if (context.Result is IQueryable <T> q)
{
source = q;
}
else if (context.Result is IEnumerable <T> e)
{
source = e.AsQueryable();
}
if (source is not null &&
context.Field.Arguments[_contextData.ArgumentName].Type is InputObjectType iot &&
iot is IFilterInputType fit)
{
var visitorContext = new QueryableFilterVisitorContext(
iot, fit.EntityType, _converter, source is EnumerableQuery);
QueryableFilterVisitor.Default.Visit(filter, visitorContext);
source = source.Where(visitorContext.CreateFilter <T>());
context.Result = source;
}
}
public async Task InvokeAsync(IMiddlewareContext context)
{
await _next(context).ConfigureAwait(false);
IValueNode sortArg = context.ArgumentLiteral <IValueNode>(_contextData.ArgumentName);
if (sortArg is NullValueNode)
{
return;
}
IQueryable <T>?source = null;
if (context.Result is IQueryable <T> q)
{
source = q;
}
else if (context.Result is IEnumerable <T> e)
{
source = e.AsQueryable();
}
if (source is not null &&
context.Field.Arguments[_contextData.ArgumentName].Type is InputObjectType iot &&
iot is ISortInputType {
EntityType : not null
} fit)
{
var visitorCtx = new QueryableSortVisitorContext(
context.Service <InputParser>(),
iot,
fit.EntityType,
source is EnumerableQuery);
QueryableSortVisitor.Default.Visit(sortArg, visitorCtx);
source = visitorCtx.Sort(source);
context.Result = source;
}
}
public async Task InvokeAsync(IMiddlewareContext context)
{
await _next(context).ConfigureAwait(false);
IValueNode filter = context.ArgumentLiteral <IValueNode>("where");
if (filter is null || filter is NullValueNode)
{
return;
}
IQueryable <T> source = null;
if (context.Result is IQueryable <T> q)
{
source = q;
}
else if (context.Result is IEnumerable <T> e)
{
source = e.AsQueryable();
}
if (source != null &&
context.Field.Arguments["where"].Type is InputObjectType iot &&
iot is IFilterInputType fit)
{
var visitor = new QueryableFilterVisitor(
iot,
fit.EntityType,
_converter);
filter.Accept(visitor);
source = source.Where(visitor.CreateFilter <T>());
context.Result = source;
}
}