public static Mutator ToMutator <T>(this IQueryCollection source) where T : Data <T>
{
var modifier = new Mutator {
Transform = new QueryTransform()
};
if (Info <T> .Settings?.Pipelines?.Before != null)
{
// Transform it only once per request.
var stringQueryCollection = source.ToDictionary(i => i.Key, i => i.Value.ToList());
foreach (var pipelineMember in Info <T> .Settings.Pipelines.Before)
{
modifier.AddPipelineMetadata <T>(pipelineMember, stringQueryCollection);
}
}
if (source.ContainsKey("sort"))
{
modifier.Transform.OrderBy = source["sort"];
}
if (source.ContainsKey("page") || source.ContainsKey("size") || source.ContainsKey("limit"))
{
modifier.Transform.Pagination = new Pagination
{
Index = source.ContainsKey("page") ? Convert.ToInt32(source["page"]) : 0,
Size = source.ContainsKey("size") ? Convert.ToInt32(source["size"]) : source.ContainsKey("limit") ? Convert.ToInt32(source["limit"]) : 50
}
}
;
if (source.ContainsKey("output"))
{
modifier.Transform.OutputFormat = source["output"];
}
if (source.ContainsKey("filter"))
{
modifier.Transform.Filter = source["filter"];
}
if (source.ContainsKey("q"))
{
modifier.Transform.OmniQuery = source["q"];
}
return(modifier);
}
