[Timers] Simplify mutation calls

platform/features/clock/src/actions/PauseTimerAction.js

@@ -58,16 +58,12 @@ define(
             var domainObject = this.domainObject,
                 now = this.now;
 
-            function setTimerState(model) {
+            function updateModel(model) {
                 model.timerState = 'paused';
-            }
-
-            function setPausedTime(model) {
                 model.pausedTime = now();
             }
 
-            return domainObject.useCapability('mutation', setTimerState) &&
+            return domainObject.useCapability('mutation', updateModel);
-                domainObject.useCapability('mutation', setPausedTime);
         };
 
         return PauseTimerAction;

platform/features/clock/src/actions/RestartTimerAction.js

@@ -56,21 +56,13 @@ define(
             var domainObject = this.domainObject,
                 now = this.now;
 
-            function setTimestamp(model) {
+            function updateModel(model) {
                 model.timestamp = now();
-            }
-
-            function setTimerState(model) {
                 model.timerState = 'started';
-            }
-
-            function setPausedTime(model) {
                 model.pausedTime = undefined;
             }
 
-            return domainObject.useCapability('mutation', setTimestamp) &&
+            return domainObject.useCapability('mutation', updateModel);
-                domainObject.useCapability('mutation', setTimerState) &&
-                domainObject.useCapability('mutation', setPausedTime);
         };
 
         return RestartTimerAction;

platform/features/clock/src/actions/StartTimerAction.js

@@ -57,7 +57,7 @@ define(
             var domainObject = this.domainObject,
                 now = this.now;
 
-            function setTimestamp(model) {
+            function updateModel(model) {
                 //if we are resuming
                 if (model.pausedTime) {
                     var timeShift = now() - model.pausedTime;
@@ -65,19 +65,11 @@ define(
                 } else {
                     model.timestamp = now();
                 }
-            }
-
-            function setTimerState(model) {
                 model.timerState = 'started';
-            }
-
-            function setPausedTime(model) {
                 model.pausedTime = undefined;
             }
 
-            return domainObject.useCapability('mutation', setTimestamp) &&
+            return domainObject.useCapability('mutation', updateModel);
-                domainObject.useCapability('mutation', setTimerState) &&
-                domainObject.useCapability('mutation', setPausedTime);
         };
 
         return StartTimerAction;

platform/features/clock/src/actions/StopTimerAction.js

@@ -57,21 +57,13 @@ define(
         StopTimerAction.prototype.perform = function () {
             var domainObject = this.domainObject;
 
-            function setTimestamp(model) {
+            function updateModel(model) {
                 model.timestamp = undefined;
-            }
-
-            function setTimerState(model) {
                 model.timerState = 'stopped';
-            }
-
-            function setPausedTime(model) {
                 model.pausedTime = undefined;
             }
 
-            return domainObject.useCapability('mutation', setTimestamp) &&
+            return domainObject.useCapability('mutation', updateModel);
-                domainObject.useCapability('mutation', setTimerState) &&
-                domainObject.useCapability('mutation', setPausedTime);
         };
 
         return StopTimerAction;