fix: configurable audit table on restore check

closes #193

sas/sasjs/macros/mpe_checkrestore.sas

@@ -39,15 +39,35 @@
   %let &outresult=NO;
   %let &outreason=NOTFOUND;
 
-  /* check if there is actually a version to restore */
+  %local libds;
+  proc sql noprint;
+  select upcase(cats(base_lib,'.',base_ds)) into: libds
+    from &dc_libref..mpe_submit
+    where TABLE_ID="&load_ref";
+
+  /**
+    * check if there is actually a version to restore
+    */
+  %local audtab;
+  proc sql noprint;
+  select coalescec(audit_libds,"&dc_libref..MPE_AUDIT") into: audtab
+  from &dclib..MPE_TABLES
+  where &dc_dttmtfmt. lt tx_to
+    and libref="%scan(&libds,1,.)" and dsn="%scan(&libds,2,.)";
+  %if "&audtab"="0" %then %do;
+    %let allow_restore=NO;
+    %let reason= &libds has no audit table configured;
+    %return;
+  %end;
+
   %local chk;
   %let chk=0;
   proc sql noprint;
-  select count(*) into: chk from &dc_libref..mpe_audit
+  select count(*) into: chk from &audtab
     where load_ref="&load_ref";
   %if &chk=0 %then %do;
     %let allow_restore=NO;
-    %let reason=No entry for &load_ref in MPE_AUDIT;
+    %let reason=No entry for &load_ref in &audtab;
     %return;
   %end;
 
@@ -70,11 +90,6 @@
   %end;
 
   /* check if user has basic access */
-  %local libds;
-  proc sql noprint;
-  select cats(base_lib,'.',base_ds) into: libds
-    from &mpelib..mpe_submit
-    where TABLE_ID="&load_ref";
   %mpe_accesscheck(&libds,outds=work.access_check
     ,user=&user
     ,access_level=EDIT