public async Task InvokeAsync(IMiddlewareContext context)
{
await _next(context).ConfigureAwait(false);
IValueNode filter = context.Argument <IValueNode>(_contextData.ArgumentName);
if (filter is null || filter is NullValueNode)
{
return;
}
IQueryable <T> source = null;
if (context.Result is PageableData <T> p)
{
source = p.Source;
}
else
{
p = 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[_contextData.ArgumentName].Type is InputObjectType iot &&
iot is IFilterInputType fit)
{
if (source is EnumerableQuery)
{
var visitor = new QueryableFilterVisitor(iot, fit.EntityType, _converter, true);
filter.Accept(visitor);
source = source.Where(visitor.CreateFilter <T>());
}
else
{
var visitor = new QueryableFilterVisitor(iot, fit.EntityType, _converter, false);
filter.Accept(visitor);
source = source.Where(visitor.CreateFilter <T>());
}
context.Result = p is null
? (object)source
: new PageableData <T>(source, p.Properties);
}
}
public async Task InvokeAsync(IMiddlewareContext context)
{
await _next(context).ConfigureAwait(false);
IValueNode sortArgument = context.Argument <IValueNode>(_contextData.ArgumentName);
if (sortArgument is null || sortArgument 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 (context.Result is PageableData <T> p)
{
source = p.Source;
}
else
{
p = null;
}
if (source != null &&
context.Field.Arguments[_contextData.ArgumentName].Type is InputObjectType iot &&
iot is ISortInputType fit)
{
QueryableSortVisitor visitor;
if (source is EnumerableQuery)
{
visitor = new QueryableSortVisitorInMemory(iot, fit.EntityType);
}
else
{
visitor = new QueryableSortVisitor(iot, fit.EntityType);
}
sortArgument.Accept(visitor);
source = visitor.Sort(source);
context.Result = p is null
? (object)source
: new PageableData <T>(source, p.Properties);
}
}
public async Task InvokeAsync(IMiddlewareContext context)
{
await _next(context).ConfigureAwait(false);
IValueNode sortArgument = context.Argument <IValueNode>(
SortObjectFieldDescriptorExtensions.OrderByArgumentName);
if (sortArgument is null || sortArgument 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[SortObjectFieldDescriptorExtensions.OrderByArgumentName]
.Type is InputObjectType iot &&
iot is ISortInputType fit)
{
var visitor = new QueryableSortVisitor(
iot,
fit.EntityType);
sortArgument.Accept(visitor);
source = visitor.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;
}
}
