private bool GetFromDatabaseSubscription <TValue>(OptionDefinition <TValue> pref, int subId, out TValue value)
{
value = default;
if (pref.Key == null)
{
return(false);
}
var dbPref = dataContext.SubscriptionOptions.Find(pref.Key, subId);
if (dbPref == null)
{
return(false);
}
value = JsonSerializer.Deserialize <TValue>(dbPref.Value);
return(true);
}
private bool GetFromDatabaseUser <TValue>(OptionDefinition <TValue> pref, string userId, out TValue value)
{
value = default;
if (pref.Key == null)
{
return(false);
}
var dbPref = dataContext.UserOptions.Find(pref.Key, userId);
if (dbPref == null)
{
return(false);
}
value = JsonSerializer.Deserialize <TValue>(dbPref.Value);
return(true);
}
/// <summary>
/// Gets the value of a global option.
/// </summary>
/// <remarks>
/// Options are resolved in this order: cache, database, environment variable, appsettings.json, default value
/// </remarks>
/// <typeparam name="TValue">Data type of option</typeparam>
/// <param name="pref">Option definition</param>
/// <returns>Option value</returns>
public TValue GetGlobal <TValue>(OptionDefinition <TValue> pref)
{
// Correct order is: database, environment variable, appsettings.json, default
// No need to update the cache here
if (globalCache.Get(pref.Key, out TValue value))
{
return(value);
}
bool found = GetFromDatabase(pref, out value) || GetFromEnvironment(pref, out value);
if (!found)
{
value = GetFromConfiguration(pref, pref.DefaultValue);
}
// Update cache
globalCache.Set(pref.Key, value);
return(value);
}
public bool GetForSubscriptionFolderNoResolve <TValue>(OptionDefinition <TValue> pref, int folderId, out TValue value)
{
return(GetFromDatabaseFolder(pref, folderId, out value));
}
public bool GetForSubscriptionNoResolve <TValue>(OptionDefinition <TValue> pref, int subId, out TValue value)
{
return(GetFromDatabaseSubscription(pref, subId, out value));
}
public void SetForSubscription <TValue>(OptionDefinition <TValue> pref, int subId, TValue value)
{
subCache.Set(new SubscriptionCacheKey(subId, pref.Key), value);
SetInDatabaseSubscription(pref, subId, value);
}