dots navigation is functional

assets/modules/dbs.js

@@ -89,20 +89,29 @@ module.exports = {
       // get links
       links_match = item.text.match(/\[[^\]]+\]\([^\)]+\)/g);
       // console.log(links_match);
+      // if links exist on text
       if(links_match){
         for(link of links_match){
           // console.log(link);
+          // get the target id
           tid = link.match(/\((.+)\)/)[1];
-          obj.to.push(tid);
+          // avoid duplicates
+          if (obj.to.indexOf(tid) == -1)
+            obj.to.push(tid);
+
           // add id to "from" links in target
+          // if target exists
           if(typeof this.data_strct[tid] !== 'undefined'){
-            this.data_strct[tid].from.push(id);
+            // avoid duplicates
+            if (this.data_strct[tid].from.indexOf(tid) == -1)
+              this.data_strct[tid].from.push(id);
           }else{
+            // if targets does not exists, the db has an issue, warn about that
             console.log('!! warning : '+tid+' target id does not exists');
           }
         }
       }
-      // console.log(this.links);
+      // add the item links to the main links listings
       this.data_strct[id] = obj;
     }
     // console.log('data_strct',this.data_strct);