(sessions): Add UI for daily_study_cap.

bot/modules/study/tracking/settings.py

@@ -119,6 +119,23 @@ class daily_study_cap(settings.Duration, settings.GuildSetting):
     _data_column = "daily_study_cap"
 
     display_name = "daily_study_cap"
-    desc = "Maximum amount of study time ..."
+    desc = "Maximum amount of recorded study time per member per day."
 
     _default = 16 * 60 * 60
+    _default_multiplier = 60 * 60
+
+    _max = 25 * 60 * 60
+
+    long_desc = (
+        "The maximum amount of study time that can be recorded for a member per day, "
+        "intended to remove system encouragement for unhealthy or obsessive behaviour.\n"
+        "The member may study for longer, but their sessions will not be tracked. "
+        "The start and end of the day are determined by the member's configured timezone."
+    )
+
+    @property
+    def success_response(self):
+        # Refresh expiry for all sessions in the guild
+        [session.schedule_expiry() for session in self.client.objects['sessions'][self.id].values()]
+
+        return "The maximum tracked daily study time is now {}.".format(self.formatted)