private void Process(PublishedContentRequest request)
{
//Are we rendering a published content (sanity check)?
if (request?.PublishedContent == null)
{
return;
}
//Are there any experiments running
var experiments = new GetApplicableCachedExperiments
{
ContentId = request.PublishedContent.Id
}.ExecuteAsync().Result;
//variations of the same content will be applied in the order the experiments were created,
//if they override the same property variation of the newest experiment wins
var variationsToApply = new List <IPublishedContentVariation>();
foreach (var experiment in experiments)
{
var eventArgs = new BeforeExperimentExecutedArgs(experiment, request.RoutingContext?.UmbracoContext?.HttpContext);
OnBeforeExperimentExecuted(eventArgs);
if (eventArgs.SkipExperiment) //allow the developer to opt out
{
continue;
}
var experimentId = experiment.GoogleExperiment.Id;
//Has the user been previously exposed to this experiment?
var assignedVariationId = GetAssignedVariation(request, experiment.Id);
if (assignedVariationId != null)
{
if (ShouldApplyVariation(experiment, assignedVariationId.Value))
{
var variationContent = GetVariationContent(experiment, assignedVariationId.Value);
variationsToApply.Add(new PublishedContentVariation(variationContent, experimentId, assignedVariationId.Value));
}
}
//Should the user be included in the experiment?
else if (ShouldVisitorParticipate(experiment))
{
//Choose a variation for the user
var variationId = SelectVariation(experiment);
AssignVariationToUser(request, experiment.Id, variationId);
if (ShouldApplyVariation(experiment, variationId))
{
var variationContent = GetVariationContent(experiment, variationId);
variationsToApply.Add(new PublishedContentVariation(variationContent, experimentId, variationId));
}
}
else
{
AssignVariationToUser(request, experiment.Id, -1);
}
}
//the visitor is excluded or we didn't find the content needed for variations, just show original
if (variationsToApply.Count <= 0)
{
return;
}
var variedContent = new VariedContent(request.PublishedContent, variationsToApply.ToArray());
request.PublishedContent = variedContent;
request.SetIsInitialPublishedContent();
//Reset the published content now we have set the initial content
request.PublishedContent = PublishedContentModelFactoryResolver.Current.Factory.CreateModel(variedContent);
request.TrySetTemplate(variedContent.GetTemplateAlias());
}
private static void OnBeforeExperimentExecuted(BeforeExperimentExecutedArgs e)
{
BeforeExperimentExecuted?.Invoke(null, e);
}
