luticate2-api/Luticate2.Utils/Dbo/Filter/LuFilterBinder.cs

using System.Threading.Tasks;
using Luticate2.Utils.Dbo.Result;
using Microsoft.AspNetCore.Mvc.ModelBinding;

namespace Luticate2.Utils.Dbo.Filter
{
    public class LuFilterBinder : IModelBinder
    {
        public static LuResult<LuFilterDbo> FromString(string data)
        {
            if (data == null)
            {
                data = "";
            }
            data = data.Trim();
            var dbo = new LuFilterDbo
            {
                Query = data
            };
            return LuResult<LuFilterDbo>.Ok(dbo);
        }

        public Task BindModelAsync(ModelBindingContext bindingContext)
        {
            var messageTypeResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
            var res = FromString(messageTypeResult.FirstValue);
            if (res)
            {
                bindingContext.Result = ModelBindingResult.Success(res.Data);
            }
            else
            {
                bindingContext.Result = ModelBindingResult.Failed();
            }
            return Task.FromResult(0);
        }
    }

    public class LuFilterBinderProvider : IModelBinderProvider
    {
        public IModelBinder GetBinder(ModelBinderProviderContext context)
        {
            if (context.Metadata.ModelType == typeof(LuFilterDbo))
            {
                return new LuFilterBinder();
            }
            return null;
        }
    }
}