Portal, calender views: Move `if` out of `try` to simplify nesting #560

Job	Run time
test (3.13, postgresql)	11m 19s
test (3.13, postgresql, theme-ubuntuusers)	10m 51s
test (3.13, sqlite)	8m 52s
test (3.13, sqlite, theme-ubuntuusers)	10m 54s
test (3.12, postgresql)	9m 0s
test (3.12, postgresql, theme-ubuntuusers)	9m 41s
test (3.12, sqlite)	6m 48s
test (3.12, sqlite, theme-ubuntuusers)	9m 12s
test (3.11, postgresql)	7m 56s
test (3.11, postgresql, theme-ubuntuusers)	8m 33s
test (3.11, sqlite)	6m 16s
test (3.11, sqlite, theme-ubuntuusers)	7m 49s
test (3.10, postgresql)	9m 10s
test (3.10, postgresql, theme-ubuntuusers)	11m 6s
test (3.10, sqlite)	6m 55s
test (3.10, sqlite, theme-ubuntuusers)	6m 36s
test (3.9, postgresql)	7m 52s
test (3.9, postgresql, theme-ubuntuusers)	8m 1s
test (3.9, sqlite)	6m 14s
test (3.9, sqlite, theme-ubuntuusers)	5m 35s
deploy_docu	12s
	2h 48m 52s

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