private static bool TryGetEventOrganizerFromContact(OrganizationServiceContext serviceContext, EntityReference organizerEntityReference, out EntityListEventOrganizer organizer)
{
organizer = null;
if (organizerEntityReference == null || organizerEntityReference.LogicalName != "contact")
{
return(false);
}
var contact = serviceContext.RetrieveSingle(organizerEntityReference.LogicalName,
new[] { "fullname", "emailaddress1" },
new[] {
new Condition("statecode", ConditionOperator.Equal, 0),
new Condition("contactid", ConditionOperator.Equal, organizerEntityReference.Id)
});
if (contact == null)
{
return(false);
}
organizer = new EntityListEventOrganizer
{
Name = contact.GetAttributeValue <string>("fullname"),
Email = contact.GetAttributeValue <string>("emailaddress1")
};
return(true);
}
private static bool TryGetEventOrganizerFromSystemUser(OrganizationServiceContext serviceContext, EntityReference organizerEntityReference, out EntityListEventOrganizer organizer)
{
organizer = null;
if (organizerEntityReference == null || organizerEntityReference.LogicalName != "systemuser")
{
return(false);
}
var systemUser = serviceContext.RetrieveSingle(
organizerEntityReference.LogicalName,
new [] { "fullname", "internalemailaddress" },
new Condition("systemuserid", ConditionOperator.Equal, organizerEntityReference.Id));
if (systemUser == null)
{
return(false);
}
organizer = new EntityListEventOrganizer
{
Name = systemUser.GetAttributeValue <string>("fullname"),
Email = systemUser.GetAttributeValue <string>("internalemailaddress")
};
return(true);
}
private static EntityListEventOrganizer GetEventOrganizer(OrganizationServiceContext serviceContext, Entity entity, EntityListSettings settings, IDictionary <string, EntityListEventOrganizer> organizerCache)
{
if (string.IsNullOrWhiteSpace(settings.OrganizerFieldName))
{
return(null);
}
var organizerValue = entity.GetAttributeValue(settings.OrganizerFieldName);
if (organizerValue == null)
{
return(null);
}
var organizerEntityReference = organizerValue as EntityReference;
if (organizerEntityReference == null)
{
return(new EntityListEventOrganizer
{
Name = organizerValue.ToString()
});
}
var organizerCacheKey = "{0}:{1}".FormatWith(organizerEntityReference.LogicalName, organizerEntityReference.Id);
EntityListEventOrganizer cachedOrganizer;
if (organizerCache.TryGetValue(organizerCacheKey, out cachedOrganizer))
{
return(cachedOrganizer);
}
EntityListEventOrganizer contactOrganizer;
if (TryGetEventOrganizerFromContact(serviceContext, organizerEntityReference, out contactOrganizer))
{
organizerCache[organizerCacheKey] = contactOrganizer;
return(contactOrganizer);
}
EntityListEventOrganizer systemUserOrganizer;
if (TryGetEventOrganizerFromSystemUser(serviceContext, organizerEntityReference, out systemUserOrganizer))
{
organizerCache[organizerCacheKey] = systemUserOrganizer;
return(systemUserOrganizer);
}
if (!string.IsNullOrWhiteSpace(organizerEntityReference.Name))
{
var referenceNameOrganizer = new EntityListEventOrganizer
{
Name = organizerEntityReference.Name
};
organizerCache[organizerCacheKey] = referenceNameOrganizer;
return(referenceNameOrganizer);
}
return(null);
}