[Version - v0.3.10]

CHANGELOG.md

@@ -1,5 +1,11 @@
 #Changelog
 
+## [v0.3.10](https://github.com/vinaygopinath/ngMeta/releases/tag/v0.3.10)
+
+##### Features
+
+* [#15](https://github.com/vinaygopinath/ngMeta/issues/15) New 'setDefaultTag` function to dynamically update default values (Thanks [@xon88](https://github.com/xon88))
+
 ## [v0.3.9](https://github.com/vinaygopinath/ngMeta/releases/tag/v0.3.9)
 
 ##### Bugfixes

README.md

@@ -136,16 +136,18 @@ angular.module('YourApp')
 .controller(function(ngMeta) {
   //These examples assume useTitleSuffix is enabled,
   //and default titleSuffix is set to 'Playlist'
-  
+
   //Custom title and titleSuffix
   ngMeta.setTitle('Eluvium', ' | Spotify'); //Title = Eluvium | Spotify
   //default titleSuffix
   ngMeta.setTitle('Eluvium'); //Title = Eluvium | Playlist
   //Clear the default titleSuffix
   ngMeta.setTitle('Eluvium',''); //Title = Eluvium
-  
+
   ngMeta.setTag('author', 'Matthew Cooper');
   ngMeta.setTag('image', 'http://placeholder.com/abc.jpg');
+
+  ngMeta.setDefaultTag('author', 'Default author');
 });
 ```
 
@@ -155,6 +157,7 @@ Note: Please use `setTitle` to modify the title and/or titleSuffix and `setTag`
 | ------ | ------- | ------- |
 | **setTitle(String title, String titleSuffix)** |  Sets the current title based on the given params. When `useTitleSuffix` is enabled and titleSuffix is not provided, it uses the default titleSuffix. | ngMeta.setTitle('Title', ' - TitleSuffix')<br/><br/>ngMeta.setTitle('Title with default titleSuffix')<br/><br/>ngMeta.setTitle('Title with no titleSuffix','') |
 | **setTag(String tagName, String value)** | Sets the value of an arbitrary tag, using the default value of the tag when the second param is missing. The value is accessible as {{ngMeta.tagName}} from HTML. Calling setTag with `title` or `titleSuffix` as `tagName` results in an error. Title must be modified using `setTitle` instead.|ngMeta.setTag('author', 'John Smith')<br/><br/>ngMeta.setTag('ogImage', 'http://url.com/image.png')|
+| **setDefaultTag(String tagName, String value)** | Sets the default value of an arbitrary tag, overwriting previously set default values, but not the value set dynamically (using `setTitle`/`setTag`) or by the route/state. `title` and `titleSuffix` are accepted values.|ngMeta.setDefaultTag('image', 'http://default-image-url.com');<br/><br/>ngMeta.setDefaultTag('title','Default title');|
 
 ### Setting tags with custom data resolved by ui-router
 

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "ngMeta",
-  "version": "0.3.9",
+  "version": "0.3.10",
   "authors": [
     "Vinay Gopinath <[email protected]>"
   ],

dist/ngMeta.js

@@ -59,9 +59,10 @@
           if (!$rootScope.ngMeta) {
             throw new Error('Cannot call setTitle when ngMeta is undefined. Did you forget to call ngMeta.init() in the run block? \nRefer: https://github.com/vinaygopinath/ngMeta#getting-started');
           }
-          $rootScope.ngMeta.title = angular.isDefined(title) ? title : defaults.title;
+
+          $rootScope.ngMeta.title = angular.isDefined(title) ? title : (defaults.title || '');
           if (config.useTitleSuffix) {
-            $rootScope.ngMeta.title += angular.isDefined(titleSuffix) ? titleSuffix : defaults.titleSuffix;
+            $rootScope.ngMeta.title += angular.isDefined(titleSuffix) ? titleSuffix : (defaults.titleSuffix || '');
           }
           return this;
         };
@@ -86,10 +87,39 @@
           if (tag === 'title' || tag === 'titleSuffix') {
             throw new Error('Attempt to set \'' + tag + '\' through \'setTag\': \'title\' and \'titleSuffix\' are reserved tag names. Please use \'ngMeta.setTitle\' instead');
           }
+
           $rootScope.ngMeta[tag] = angular.isDefined(value) ? value : defaults[tag];
           return this;
         };
 
+        /**
+         * @ngdoc method
+         * @name ngMeta#setDefaultTag
+         * @description
+         * Sets the default tag for all routes that are missing a custom
+         * `tag` property in their meta objects.
+         *
+         * @example
+         * ngMeta.setDefaultTag('titleSuffix', ' | Tagline of the site');
+         *
+         * @returns {Object} self
+         */
+        var setDefaultTag = function(tag, value) {
+          if (!$rootScope.ngMeta) {
+            throw new Error('Cannot call setDefaultTag when ngMeta is undefined. Did you forget to call ngMeta.init() in the run block? \nRefer: https://github.com/vinaygopinath/ngMeta#getting-started');
+          }
+
+          defaults[tag] = value;
+
+          if (tag === 'title' || tag === 'titleSuffix') {
+            this.setTitle($rootScope.ngMeta.title, $rootScope.ngMeta.titleSuffix);
+          } else {
+            this.setTag(tag, $rootScope.ngMeta[tag]);
+          }
+
+          return this;
+        };
+
         /**
          * @ngdoc method
          * @name readRouteMeta
@@ -165,7 +195,8 @@
         return {
           'init': init,
           'setTitle': setTitle,
-          'setTag': setTag
+          'setTag': setTag,
+          'setDefaultTag': setDefaultTag
         };
       }
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ng-meta",
-  "version": "0.3.9",
+  "version": "0.3.10",
   "description": "Meta tags support for AngularJS single page applications (SPA)",
   "main": "dist/ngMeta.js",
   "directories": {