Added key() method to database ref/DatabaseRef parent class

Author: auser

lib/modules/base.js

@@ -77,10 +77,20 @@ export class Base {
 export class ReferenceBase extends Base {
   constructor(firestack, path) {
     super(firestack);
+
     this.path = Array.isArray(path) ?
                       path :
                       (typeof path == 'string' ?
                         [path] : []);
+
+    // sanitize path, just in case
+    this.path = this.path
+                    .filter(str => str !== "" );
+  }
+
+  get key() {
+    const path = this.path;
+    return path.length === 0 ? '/' : path[path.length - 1];
   }
 
   pathToString() {

lib/modules/database.js

@@ -169,7 +169,9 @@ class DatabaseRef extends ReferenceBase {
   push(value={}) {
     const path = this.dbPath();
     return promisify('push', FirestackDatabase)(path, value)
-      .then(({ref}) => new DatabaseRef(this.db, ref))
+      .then(({ref}) => {
+        return new DatabaseRef(this.db, ref.split(separator))
+      })
   }
 
   on(evt, cb) {
@@ -247,7 +249,7 @@ class DatabaseRef extends ReferenceBase {
 
   // attributes
   get fullPath() {
-    return this.dbPath().path;
+    return this.dbPath();
   }
 
   get name() {