/// <summary>
/// Returns Global Attributes from cache. If they are not already in cache, they
/// will be read and added to cache
/// </summary>
/// <returns></returns>
public static GlobalAttributes Read()
{
string cacheKey = GlobalAttributes.CacheKey();
ObjectCache cache = MemoryCache.Default;
GlobalAttributes globalAttributes = cache[cacheKey] as GlobalAttributes;
if (globalAttributes != null)
{
return(globalAttributes);
}
else
{
globalAttributes = new GlobalAttributes();
globalAttributes.AttributeValues = new Dictionary <string, KeyValuePair <string, string> >();
var attributeService = new Rock.Core.AttributeService();
var attributeValueService = new Rock.Core.AttributeValueService();
foreach (Rock.Core.Attribute attribute in attributeService.Queryable().
Where(a => a.Entity == "" &&
(a.EntityQualifierColumn ?? string.Empty) == "" &&
(a.EntityQualifierValue ?? string.Empty) == ""))
{
// TODO: Need to add support for multiple values
var attributeValue = attributeValueService.GetByAttributeIdAndEntityId(attribute.Id, null).FirstOrDefault();
globalAttributes.AttributeValues.Add(attribute.Key, new KeyValuePair <string, string>(attribute.Name, (attributeValue != null && !string.IsNullOrEmpty(attributeValue.Value)) ? attributeValue.Value : attribute.DefaultValue));
}
cache.Set(cacheKey, globalAttributes, new CacheItemPolicy());
return(globalAttributes);
}
}
/// <summary>
/// Removes Global Attributes from cache
/// </summary>
public static void Flush()
{
ObjectCache cache = MemoryCache.Default;
cache.Remove(GlobalAttributes.CacheKey());
}