protected bool Exists(OneOptions options)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
var findArgs = new FindOneArgs {
Query = options.GetQuery(_getIdValue),
Fields = Fields.Include(CommonFieldNames.Id),
ReadPreference = ReadPreference.Primary
};
return(_collection.FindOneAs <T>(findArgs) != null);
}
protected TModel FindOne <TModel>(OneOptions options) where TModel : class, new()
{
if (options == null)
{
throw new ArgumentNullException("options");
}
TModel result = null;
if (options.UseCache)
{
result = Cache.Get <TModel>(GetScopedCacheKey(options.CacheKey));
}
if (result != null)
{
return(result);
}
var findArgs = new FindOneArgs {
Query = options.GetQuery(_getIdValue), Fields = Fields.Include(options.Fields.ToArray()), SortBy = options.SortBy
};
if (options.ReadPreference != null)
{
findArgs.ReadPreference = options.ReadPreference;
}
result = _collection.FindOneAs <TModel>(findArgs);
if (result != null && options.UseCache)
{
Cache.Set(GetScopedCacheKey(options.CacheKey), result, options.GetCacheExpirationDate());
}
return(result);
}
