ClassSearchController.classSearch()
Loads field config to display for basic search, adv search, and details popup from SORWSCR table (SOAWSCR page) and returns view "classSearch".
If config map is not found in session cache, then it is searched using one of three personas. If the user is authenticated, the user's persona is used. Otherwise, the student persona is used, but if no records are returned then the search is repeated using the anonymous persona (WEBUSER).
If the display property for any item is blank, it is queried from the app resource bundle (see banner_student_common/.../messages*).
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