/// <summary>
/// Executes the specified workflow.
/// </summary>
/// <param name="rockContext">The rock context.</param>
/// <param name="action">The action.</param>
/// <param name="entity">The entity.</param>
/// <param name="errorMessages">The error messages.</param>
/// <returns></returns>
public override bool Execute(RockContext rockContext, WorkflowAction action, Object entity, out List <string> errorMessages)
{
errorMessages = new List <string>();
var service = new PageShortLinkService(rockContext);
// Get the merge fields
var mergeFields = GetMergeFields(action);
// Get the site
int siteId = GetAttributeValue(action, "Site", true).AsInteger();
SiteCache site = SiteCache.Read(siteId);
if (site == null)
{
errorMessages.Add(string.Format("Invalid Site Value"));
return(false);
}
// Get the token
string token = GetAttributeValue(action, "Token", true).ResolveMergeFields(mergeFields);
if (token.IsNullOrWhiteSpace())
{
int tokenLen = GetAttributeValue(action, "RandomTokenLength").AsIntegerOrNull() ?? 7;
token = service.GetUniqueToken(site.Id, tokenLen);
}
// Get the target url
string url = GetAttributeValue(action, "Url", true).ResolveMergeFields(mergeFields).RemoveCrLf().Trim();
if (url.IsNullOrWhiteSpace())
{
errorMessages.Add("A valid Target Url was not specified.");
return(false);
}
// Save the short link
var link = service.GetByToken(token, site.Id);
if (link != null)
{
if (!GetAttributeValue(action, "Overwrite").AsBoolean())
{
errorMessages.Add(string.Format("The selected token ('{0}') already exists. Please specify a unique token, or configure action to allow token re-use.", token));
return(false);
}
else
{
link.Url = url;
}
}
else
{
link = new PageShortLink();
link.SiteId = site.Id;
link.Token = token;
link.Url = url;
service.Add(link);
}
rockContext.SaveChanges();
// Save the resulting short link url
var attribute = AttributeCache.Read(GetAttributeValue(action, "Attribute").AsGuid(), rockContext);
if (attribute != null)
{
string domain = new SiteService(rockContext).GetDefaultDomainUri(site.Id).ToString();
string shortLink = domain.EnsureTrailingForwardslash() + token;
SetWorkflowAttributeValue(action, attribute.Guid, shortLink);
action.AddLogEntry(string.Format("Set '{0}' attribute to '{1}'.", attribute.Name, shortLink));
}
return(true);
}