Question

我有一个在NopCommerce中开发的自定义插件我需要获得与一个国家相关的省/州名单我可以轻松地做到这一点;

requestAnimationFrame

我遇到的问题是，当我想获得特定语言的列表时......例如法语;

IList<StateProvince> stateList = _stateProvinceService.GetStateProvincesByCountryId(Country.Id);

其中2是法语的英语...但是这会返回一份英文省份列表...

GetStateProvincesByCountryId代码如下：

IList<StateProvince> stateList = _stateProvinceService.GetStateProvincesByCountryId(Country.Id, 2);

我想要做的是找到带有这样字符串比较的省Id;

/// <summary>
/// Gets a state/province collection by country identifier
/// </summary>
/// <param name="countryId">Country identifier</param>
/// <param name="languageId">Language identifier. It's used to sort states by localized names (if specified); pass 0 to skip it</param>
/// <param name="showHidden">A value indicating whether to show hidden records</param>
/// <returns>States</returns>
public virtual IList<StateProvince> GetStateProvincesByCountryId(int countryId, int languageId = 0, bool showHidden = false)
{
    string key = string.Format(STATEPROVINCES_ALL_KEY, countryId, languageId, showHidden);
    return _cacheManager.Get(key, () =>
    {
        var query = from sp in _stateProvinceRepository.Table
                    orderby sp.DisplayOrder, sp.Name
                    where sp.CountryId == countryId &&
                    (showHidden || sp.Published)
                    select sp;
        var stateProvinces = query.ToList();

        if (languageId > 0)
        {
            //we should sort states by localized names when they have the same display order
            stateProvinces = stateProvinces
                .OrderBy(c => c.DisplayOrder)
                .ThenBy(c => c.GetLocalized(x => x.Name, languageId))
                .ToList();
        }
        return stateProvinces;
    });
}

我该怎么做？

Answer 1

首先，我不确定cacheManager。因为我们没有代码。尝试使用/不使用代码。无论如何，让我们说它运作正常;

我认为你只是用这个命名列表;

            stateProvinces = stateProvinces
            .OrderBy(c => c.DisplayOrder)
            .ThenBy(c => c.GetLocalized(x => x.Name, languageId))

我想，你必须写这样的东西;

where sp.CountryId == countryId && sp.LanguageId == languageId && (showHidden || sp.Published)

但如果这不能解决您的问题，您可以写出这种糟糕的方法;

...
                stateProvinces = stateProvinces
                .OrderBy(c => c.DisplayOrder)
                .ToList();

/* You should seperate this function as well. Because you need to pass province name somehow */
StateProvince stateprov = stateList.FirstOrDefault(spl => spl.Name.GetLocalized(x => x.Name, languageId) == "french province name");
...

为什么这是不好的方法？通过魔术字符串获取这样的东西是不好的。那么大写，小写呢？性能怎么样（你得到整个列表，转换成你的lang而只是拿一个）？我希望这会有所帮助，对不起，我们实际上并不知道那里发生了什么......

NopCommerce - 按国家和语言获取国家

1 个答案: