public CarModelMutation(CarModelRepository modelRepository)
{
/**
* NEW MODEL
*/
Field <CarModelType, CarModel>()
.Name("createModel")
.Argument <NonNullGraphType <CarModelInputType> >("model", "model input")
.ResolveAsync(async ctx =>
{
var model = ctx.GetArgument <CarModel>("model");
return(await modelRepository.Add(model));
});
/**
* UPDATE MODEL
*/
Field <CarModelType, CarModel>()
.Name("updateModel")
.Argument <NonNullGraphType <CarBrandInputType> >("model", "model input")
.ResolveAsync(async ctx =>
{
var model = ctx.GetArgument <CarModel>("model");
// Check if model exists
var currentModel = await modelRepository.FindById(model.Id);
if (currentModel == null)
{
ctx.Errors.Add(new ExecutionError("Model not found"));
return(null);
}
// Update model
return(await modelRepository.Update(model));
});
/**
* DELETE MODEL
*/
Field <CarModelType, CarModel>()
.Name("deleteModel")
.Argument <NonNullGraphType <IdGraphType> >("id", "model id input")
.ResolveAsync(async ctx =>
{
var id = ctx.GetArgument <int>("id");
// Check if model exists
var currentModel = await modelRepository.FindById(id);
if (currentModel == null)
{
ctx.Errors.Add(new ExecutionError("Model not found"));
return(null);
}
// delete model
await modelRepository.Remove(id);
return(null);
});
}
