/// <summary>
/// Returns Attribute object from cache. If attribute does not already exist in cache, it
/// will be read and added to cache
/// </summary>
/// <param name="id">The id of the Attribute to read</param>
/// <returns></returns>
public static Attribute Read(int id)
{
string cacheKey = Attribute.CacheKey(id);
ObjectCache cache = MemoryCache.Default;
Attribute attribute = cache[cacheKey] as Attribute;
if (attribute != null)
{
return(attribute);
}
else
{
Rock.Core.AttributeService attributeService = new Rock.Core.AttributeService();
Rock.Core.Attribute attributeModel = attributeService.Get(id);
if (attributeModel != null)
{
attribute = Attribute.CopyModel(attributeModel);
cache.Set(cacheKey, attribute, new CacheItemPolicy());
return(attribute);
}
else
{
return(null);
}
}
}
/// <summary>
/// Adds Attribute model to cache, and returns cached object
/// </summary>
/// <param name="attributeModel">The attributeModel to cache</param>
/// <returns></returns>
public static Attribute Read(Rock.Core.Attribute attributeModel)
{
Attribute attribute = Attribute.CopyModel(attributeModel);
string cacheKey = Attribute.CacheKey(attributeModel.Id);
ObjectCache cache = MemoryCache.Default;
cache.Set(cacheKey, attribute, new CacheItemPolicy());
return(attribute);
}
/// <summary>
/// Removes attribute from cache
/// </summary>
/// <param name="id">The id of the attribute to remove from cache</param>
public static void Flush(int id)
{
ObjectCache cache = MemoryCache.Default;
cache.Remove(Attribute.CacheKey(id));
}