public static void RenderFilter(RenderContext ctx)
{
var filter = ctx.Query.Get("Filter");
if (filter == null)
{
return;
}
var widgets =
from property in filter.GetType().GetProperties().Select(x => x.Name)
let widget = filter.Get(property) as Widget
where widget != null
select widget;
if (!widgets.Any())
{
return;
}
if (ctx.Entity.Actions == null)
{
ctx.Entity.Actions = new EntityActionCollection();
}
var filterAction = ctx.Entity.Actions.FirstOrDefault(x => x.Name.EqualsIgnoreCase("Filter"));
if (filterAction == null)
{
var filterArgs = Enumerable.Empty <KeyValuePair <string, object> >();
var href = QueryPathBuilder.BuildPath(ctx, ctx.Query, ctx.PathTemplate, null, filterArgs);
// removendo informacao de paginacao
href = new Route(href).UnsetArgs("limit", "offset");
filterAction = new EntityAction();
filterAction.Name = "Filters";
filterAction.Href = href;
filterAction.Method = "GET";
filterAction.Title = "Filtros";
ctx.Entity.Actions.Add(filterAction);
}
if (filterAction.Fields == null)
{
filterAction.Fields = new FieldCollection();
}
foreach (var widget in widgets)
{
var field = widget.ToMediaField();
if (field.Title == null)
{
field.Title = field?.Name.ChangeCase(TextCase.ProperCase);
}
filterAction.Fields.Add(field);
}
}
private static Link CreateLink(QueryLink source, RenderContext ctx)
{
var linkedQuery = ctx.Injector.CreateInstance(source.QueryType);
source.Setter?.Invoke(linkedQuery);
var targets =
from renderer
in ctx.PaperRendererRegistry.FindPaperRenderers(source.QueryType)
where renderer.PaperRendererType == typeof(QueryRenderer)
let argNames = UriUtil.GetArgNames(renderer.PathTemplate)
orderby argNames.Length descending
select new { renderer, argNames };
foreach (var target in targets)
{
var pathTemplate = target.renderer.PathTemplate;
var argNames = target.argNames;
var pathArgs = QueryPathBuilder.SatisfyArgs(linkedQuery, argNames);
var isAllArgsSatisfied = !pathArgs.Any(x => x.Value == null);
if (isAllArgsSatisfied)
{
var href = QueryPathBuilder.BuildPath(ctx, linkedQuery, pathTemplate, pathArgs, null);
var link = new Link().CopyFrom(source);
link.Href = href;
return(link);
}
}
return(null);
}
