fixup 1

Author: gkalpak

docs/app/src/tutorials.js

@@ -11,8 +11,7 @@ angular.module('tutorials', [])
     scope: {},
     template:
       '<a ng-href="tutorial/{{prev}}"><li class="btn btn-primary"><i class="glyphicon glyphicon-step-backward"></i> Previous</li></a>\n' +
-      // '<a ng-href="http://angular.github.io/angular-phonecat/step-{{seq}}/app"><li class="btn btn-primary"><i class="glyphicon glyphicon-play"></i> Live Demo</li></a>\n' +
-      '<a ng-href="https://github.com/angular/angular-phonecat/compare/pre-v1.5.0-snapshot~{{diffLo}}...pre-v1.5.0-snapshot~{{diffHi}}"><li class="btn btn-primary"><i class="glyphicon glyphicon-search"></i> Code Diff</li></a>\n' +
+      '<a ng-href="https://github.com/angular/angular-phonecat/compare/old-step-{{diffLo}}...old-step-{{diffHi}}"><li class="btn btn-primary"><i class="glyphicon glyphicon-search"></i> Code Diff</li></a>\n' +
       '<a ng-href="tutorial/{{next}}"><li class="btn btn-primary">Next <i class="glyphicon glyphicon-step-forward"></i></li></a>',
     link: function(scope, element, attrs) {
       var seq = 1 * attrs.docTutorialNav;
@@ -21,7 +20,8 @@ angular.module('tutorials', [])
       scope.next = pages[2 + seq];
       scope.diffLo = 13 - seq;
       scope.diffHi = 12 - seq;
-
+      scope.diffLo = seq ? (seq - 1): '0~1';
+      scope.diffHi = seq;
       element.addClass('btn-group');
       element.addClass('tutorial-nav');
     }
@@ -39,12 +39,10 @@ angular.module('tutorials', [])
       '<div class="alert alert-info" ng-show="show">\n' +
       '  <p>Reset the workspace to step {{step}}.</p>' +
       '  <p><pre>git checkout -f old-step-{{step}}</pre></p>\n' +
-      // '  <p>Refresh your browser or check out this step online: '+
-      //     '<a href="http://angular.github.io/angular-phonecat/step-{{step}}/app">Step {{step}} Live Demo</a>.</p>\n' +
       '  <p>Refresh your browser to see the changes.</p>\n' +
       '</div>\n' +
       '<p>The most important changes are listed below. You can see the full diff on ' +
-        '<a ng-href="https://github.com/angular/angular-phonecat/compare/pre-v1.5.0-snapshot~{{13 - step}}...pre-v1.5.0-snapshot~{{12 - step}}" title="See diff on Github">GitHub</a>.\n' +
+        '<a ng-href="https://github.com/angular/angular-phonecat/compare/old-step-{{step ? (step - 1) : \'0~1\'}}...old-step-{{step}}" title="See diff on Github">GitHub</a>\n' +
       '</p>'
   };
 });