public static TResult GetValueForSource <TResult>(this IResolveFieldContext resolveContext)
{
if (resolveContext == null)
{
throw new ArgumentNullException(nameof(resolveContext));
}
TResult result = default;
if (resolveContext.Source is IEntity entity)
{
result = resolveContext.GetValue <TResult>(entity.Id);
}
else if (resolveContext.Source is IValueObject valueObject)
{
result = resolveContext.GetValue <TResult>(((ValueObject)valueObject).GetCacheKey());
}
return(result);
}
public static Currency GetCurrencyByCode <T>(this IResolveFieldContext <T> userContext, string currencyCode)
{
var allCurrencies = userContext.GetValue <IEnumerable <Currency> >("allCurrencies");
var result = allCurrencies?.FirstOrDefault(x => x.Code.EqualsInvariant(currencyCode));
if (result == null)
{
throw new OperationCanceledException($"the currency with code '{ currencyCode }' is not registered");
}
return(result);
}
public static async Task <IDictionary <string, ExpProduct> > LoadProductsAsync(IMediator mediator, IResolveFieldContext context, IEnumerable <string> ids, string[] includeFields)
{
var request = new LoadProductsQuery
{
ObjectIds = ids.ToArray(),
StoreId = context.GetValue <string>("storeId"),
IncludeFields = includeFields.ToArray()
};
var response = await mediator.Send(request);
return(response.Products.ToDictionary(x => x.Id));
}
public static Currency GetOrderCurrencyByCode <T>(this IResolveFieldContext <T> userContext, string currencyCode)
{
//Try to get a currency from order if currency code is not set explicitly or undefined
var result = userContext.GetOrderCurrency();
//If the passed currency differs from the order currency, we try to find it from the all registered currencies.
if (result == null || (!string.IsNullOrEmpty(currencyCode) && !result.Code.EqualsInvariant(currencyCode)))
{
var allCurrencies = userContext.GetValue <IEnumerable <Currency> >("allCurrencies");
result = allCurrencies?.FirstOrDefault(x => x.Code.EqualsInvariant(currencyCode));
}
if (result == null)
{
throw new OperationCanceledException($"the currency with code '{ currencyCode }' is not registered");
}
return(result);
}
public static T GetArgumentOrValue <T>(this IResolveFieldContext resolveContext, string key)
{
return(resolveContext.GetArgument <T>(key) ?? resolveContext.GetValue <T>(key));
}
public static T GetValue <T>(this IResolveFieldContext resolveContext, string key)
{
return(resolveContext.GetValue(key, default(T)));
}