public LocalizedValue <TProp> GetLocalizedValue <T, TProp>(T entity,
string localeKeyGroup,
string localeKey,
Func <T, TProp> fallback,
object requestLanguageIdOrObj, // Id or Language
bool returnDefaultValue = true,
bool ensureTwoPublishedLanguages = true,
bool detectEmptyHtml = false)
where T : ILocalizedEntity
{
if (entity == null)
{
throw new ArgumentNullException(nameof(entity));
}
TProp result = default;
var str = string.Empty;
Language currentLanguage = null;
Language requestLanguage = null;
if (!(requestLanguageIdOrObj is Language))
{
if (requestLanguageIdOrObj is int requestLanguageId)
{
requestLanguage = _languageService.GetLanguageById(requestLanguageId);
}
}
else
{
requestLanguage = (Language)requestLanguageIdOrObj;
}
if (requestLanguage == null)
{
requestLanguage = _workContext.WorkingLanguage;
}
// Ensure that we have at least two published languages
var loadLocalizedValue = true;
if (ensureTwoPublishedLanguages)
{
loadLocalizedValue = _languageCount > 1;
}
// Localized value
if (loadLocalizedValue)
{
str = _localizedEntityService.GetLocalizedValue(requestLanguage.Id, entity.Id, localeKeyGroup, localeKey);
if (detectEmptyHtml && HtmlUtils.IsEmptyHtml(str))
{
str = string.Empty;
}
if (str.HasValue())
{
currentLanguage = requestLanguage;
result = str.Convert <TProp>(CultureInfo.InvariantCulture);
}
}
// Set default value if required
if (returnDefaultValue && str.IsEmpty())
{
currentLanguage = _defaultLanguage;
result = fallback(entity);
}
if (currentLanguage == null)
{
currentLanguage = requestLanguage;
}
return(new LocalizedValue <TProp>(result, requestLanguage, currentLanguage));
}
