/// <summary>
/// Obtains inherited translations
/// </summary>
/// <param name="dbCtx"></param>
/// <returns></returns>
protected internal static async Task ObtainInheritedTranslations(DbContext dbCtx, TranslationKey tk)
{
var localizedDbCtx = dbCtx as ILocalizedDbContext;
var localizationClass = await localizedDbCtx.LocalizationClasses.AsNoTracking()
.FirstOrDefaultAsync(x => x.Uuid == tk.LocalizationClassUuid);
//drill one level down as assuming that it should be actual
if (localizationClass != null && !string.IsNullOrWhiteSpace(localizationClass.InheritedClassName))
{
var inheritedLocalizationClass = await localizedDbCtx.LocalizationClasses.AsNoTracking()
.FirstOrDefaultAsync(x => x.ApplicationName + x.ClassName + "Localization" == localizationClass.InheritedClassName);
if (inheritedLocalizationClass == null)
{
return;
}
var inheritedTk = await localizedDbCtx.TranslationKeys.FirstOrDefaultAsync(x =>
x.LocalizationClassUuid == inheritedLocalizationClass.Uuid && x.Key == tk.Key);
if (inheritedTk == null)
{
return;
}
tk.Translations = inheritedTk.Translations;
await tk.SilentUpdateAsync <TranslationKey>(dbCtx);
}
}
public static async Task SaveLocalizationsAsync(DbContext dbCtx, IEnumerable <LocalizationClass> localizations,
bool?overwrite, bool?upsert, IEnumerable <string> langsToImport)
{
var localisedDbCtx = (ILocalizedDbContext)dbCtx;
var appNames = new List <string>();
foreach (var incomingLc in localizations)
{
if (!appNames.Contains(incomingLc.ApplicationName))
{
appNames.Add(incomingLc.ApplicationName);
}
var lc =
await localisedDbCtx.LocalizationClasses.FirstOrDefaultAsync(
x => x.ApplicationName == incomingLc.ApplicationName && x.ClassName == incomingLc.ClassName);
if (overwrite == true)
{
if (lc != null)
{
//this should nicely cleanup the translation keys too
await lc.DestroyAsync <LocalizationClass>(dbCtx, lc.Uuid);
}
lc = new LocalizationClass
{
ApplicationName = incomingLc.ApplicationName,
ClassName = incomingLc.ClassName,
InheritedClassName = incomingLc.InheritedClassName
};
await lc.CreateAsync(dbCtx);
foreach (var translationKey in incomingLc.TranslationKeys)
{
//filter out translations that are about to be saved
var translations = new Translations();
foreach (var lng in translationKey.Translations.Keys)
{
if (langsToImport == null || langsToImport.Contains(lng))
{
translations.Add(lng, translationKey.Translations[lng]);
}
}
var tk = new TranslationKey
{
LocalizationClassUuid = lc.Uuid,
Key = translationKey.Key,
Inherited = translationKey.Inherited,
Overwrites = translationKey.Overwrites,
Translations = translations ?? new Translations()
};
await tk.CreateAsync(dbCtx);
}
}
else
{
//this is a non-overwrite, so it applies to both - localization and translation keys; whatever is in the db must be maintained
//only the missing bits and pieces are added
//take care of the translation key - if not there it must be created
if (lc == null)
{
lc = new LocalizationClass
{
ApplicationName = incomingLc.ApplicationName,
ClassName = incomingLc.ClassName,
InheritedClassName = incomingLc.InheritedClassName
};
await lc.CreateAsync(dbCtx);
}
//review the translations now
foreach (var translationKey in incomingLc.TranslationKeys)
{
//check if the translation key is already there
var tk =
await
localisedDbCtx.TranslationKeys.FirstOrDefaultAsync(
x => x.LocalizationClassUuid == lc.Uuid && x.Key == translationKey.Key);
//create key if not there
if (tk == null)
{
tk = new TranslationKey
{
LocalizationClassUuid = lc.Uuid,
Key = translationKey.Key,
Translations = new Translations()
};
await tk.CreateAsync(dbCtx);
}
tk.Inherited = translationKey.Inherited;
tk.Overwrites = translationKey.Overwrites;
//filter out translations that are about to be saved
var translations = new Translations();
foreach (var lng in translationKey.Translations.Keys)
{
if (langsToImport == null || langsToImport.Contains(lng))
{
translations.Add(lng, translationKey.Translations[lng]);
}
}
//check translations
foreach (var lng in translations.Keys)
{
if (upsert == true || !tk.Translations.ContainsKey(lng))
{
tk.Translations[lng] = translations[lng];
}
}
await tk.SilentUpdateAsync <TranslationKey>(dbCtx);
}
}
}
//need to wipe out cache too...
foreach (var appName in appNames)
{
InvalidateAppLocalizationsCache(appName);
}
}
/// <summary>
/// Propagates change up the inheritance stack, so translations in inheriting classes are updated;
/// propagation stops when an inheriting translation overwrites inherited value
/// </summary>
/// <param name="dbCtx"></param>
/// <param name="tk"></param>
/// <returns></returns>
protected internal static async Task PropagateChangeUpTheInheritanceStack(DbContext dbCtx, TranslationKey tk)
{
var appName = await GetLocalizationClassAppNameAsync(dbCtx, tk.LocalizationClassUuid);
var className = await GetLocalizationClassClassNameAsync(dbCtx, tk.LocalizationClassUuid);
var localizedDbCtx = dbCtx as ILocalizedDbContext;
var inheritingClasses = await(localizedDbCtx).LocalizationClasses.AsNoTracking()
.Where(lc => lc.InheritedClassName == $"{appName}.{className}Localization").ToListAsync();
foreach (var inheritingClass in inheritingClasses)
{
//get inheriting tk
var inheritingTk = await localizedDbCtx.TranslationKeys.FirstOrDefaultAsync(x =>
x.LocalizationClassUuid == inheritingClass.Uuid && x.Key == tk.Key);
//no key, or key overwrites - stop, as no point, as this breaks inheritance chain
if (inheritingTk == null || inheritingTk.Overwrites == true)
{
continue;
}
inheritingTk.Translations = tk.Translations;
await inheritingTk.SilentUpdateAsync <TranslationKey>(dbCtx);
await PropagateChangeUpTheInheritanceStack(dbCtx, inheritingTk);
}
}