restored the flag table and reference chain modifiactions that somehow got deleted

database-update.sh

@@ -39,5 +39,80 @@ margs="--defaults-extra-file=$mysql_opt_file"
 #  -------------------------------------
 
 #  ---------- version 5.3.0 ------------
-#  Nothing to do
+#  
+echo "Started database updates for OpenLog version 5.3.0..."
+
+#  Import old flag data from old scheme to new flagmap table
+if [[ $(mysql $margs -e "select count(*) from flagmap") == 0 ]]
+then
+    echo "Importing flag data from old scheme to new flagmap table..."
+    for flagnumber in $(mysql $margs -e "select flagid from flags")
+    do 
+        flag_x=$(mysql $margs -s -e "show tables like 'flag_$flagnumber'")
+        if [[ -n "$flag_x" ]]
+        then
+            for tgtid in $(mysql $margs -e "select id from flag_$flagnumber")
+            do
+                target=$(mysql $margs -e "select target from flag_$flagnumber where id=$tgtid")
+                if [[ $target == "lognotes" ]]
+                then
+                    mysql $margs -e "insert into flagmap(flagid,lognoteid) values($flagnumber,$tgtid)"
+                elif [[ $target == "maintforms" ]]
+                then
+                    mysql $margs -e "insert into flagmap(flagid,maintformid) values($flagnumber,$tgtid)"
+                elif [[ $target == "notetemplates" ]]
+                then
+                    mysql $margs -e "insert into flagmap(flagid,notetemplateid) values($flagnumber,$tgtid)"
+                fi
+                
+            done
+            mysql $margs -e "drop table flag_$flagnumber"
+        fi
+    done
+    echo "...done."
+fi
+
+#  Import reference chain data into new reflinks table
+if [[ $(mysql $margs -e "select count(*) from reflinks") == 0 ]]
+then
+    echo "Importing lognote reference chain data into new reflinks table..."
+    for note in $(mysql $margs -e "select lognoteid from lognotes where refs!=''")
+    do
+        refstring=$(mysql $margs -e "select refs from lognotes where lognoteid=$note")
+        oldifs=$IFS
+        IFS=', '
+        for target in $refstring
+        do
+            target=$(echo "$target" | xargs)
+            mysql $margs -e "insert into reflinks(noteid,target) values($note,$target)"
+        done
+        IFS=$oldifs
+    done
+    echo "...done."
+    echo "Importing template reference chain data into new reflinks table..."
+    for template in $(mysql $margs -e "select templateid from notetemplates where refs!=''")
+    do
+        refstring=$(mysql $margs -e "select refs from notetemplates where templateid=$template")
+        oldifs=$IFS
+        IFS=', '
+        for target in $refstring
+        do
+            target=$(echo "$target" | xargs)
+            mysql $margs -e "insert into reflinks(templateid,target) values($template,$target)"
+        done
+        IFS=$oldifs
+    done
+    echo "...done."
+    mysql $margs -e "alter table lognotes drop column refs" >/dev/null 2>&1
+    mysql $margs -e "alter table notetemplates drop column refs" >/dev/null 2>&1
+fi
+
+#  Convert database to utf8mb4/utf8mb4_unicode_ci
+echo "Converting database to utf8mb4 encoding..."
+mysql $margs -e "ALTER DATABASE CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci"
+for table in $(mysql $margs -e "show tables")
+do
+    mysql $margs -e "ALTER TABLE $table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"
+done
+echo "...done."
 #  -------------------------------------