The problem was that users that are unknown by SLUB_Events would get a
login message even though they are logged in.
The check for {subscribers} only works if the user previously was
subscribed to any event. Only then he/she is in the database table
tx_slubevents_domain_model_subscriber and the first if-condition is
not null.
Therefore we have to do a two-step check to display the message to avoid
showing the hint to logged in users. They get the info that they are not
subscribed to any event yet instead.
The problem was that users that are unknown by SLUB_Events would get a login message even though they are logged in.
The check for {subscribers} only works if the user previously was subscribed to any event. Only then he/she is in the database table
tx_slubevents_domain_model_subscriberand the first if-condition is not null.Therefore we have to do a two-step check to display the message to avoid showing the hint to logged in users. They get the info that they are not subscribed to any event yet instead.