Some experiments with a cache control thing. [skip ci]

app/Support/ChartProperties.php

@@ -3,9 +3,11 @@
 namespace FireflyIII\Support;
 
 
+use Auth;
 use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Collection as EloquentCollection;
 use Illuminate\Support\Collection;
+use Preferences;
 
 /**
  * Class ChartProperties
@@ -24,6 +26,8 @@ class ChartProperties
     public function __construct()
     {
         $this->properties = new Collection;
+        $this->addProperty(Auth::user()->id);
+        $this->addProperty(Preferences::lastActivity());
     }
 
     /**
@@ -41,25 +45,33 @@ class ChartProperties
     public function md5()
     {
         $string = '';
+        //Log::debug('--- building string ---');
         foreach ($this->properties as $property) {
 
             if ($property instanceof Collection || $property instanceof EloquentCollection) {
                 $string .= print_r($property->toArray(), true);
+                //                Log::debug('added collection (size=' . $property->count() . ')');
                 continue;
             }
             if ($property instanceof Carbon) {
                 $string .= $property->toRfc3339String();
+                //                Log::debug('Added time: ' . $property->toRfc3339String());
                 continue;
             }
             if (is_object($property)) {
                 $string .= $property->__toString();
+                //                Log::debug('Added object of class ' . get_class($property));
             }
             if (is_array($property)) {
                 $string .= print_r($property, true);
+                //                Log::debug('Added array (size=' . count($property) . ')');
             }
             $string .= (string)$property;
+            //            Log::debug('Added cast to string: ' . $property);
         }
 
+        //        Log::debug('--- done building string ---');
+
         return md5($string);
     }
 }

app/Support/Preferences.php

@@ -4,7 +4,7 @@ namespace FireflyIII\Support;
 
 use Auth;
 use FireflyIII\Models\Preference;
-
+use Log;
 /**
  * Class Preferences
  *
@@ -12,6 +12,25 @@ use FireflyIII\Models\Preference;
  */
 class Preferences
 {
+    /**
+     * @return string
+     */
+    public function lastActivity()
+    {
+        $preference = $this->get('lastActivity', microtime())->data;
+
+        return md5($preference);
+    }
+
+    /**
+     * @return bool
+     */
+    public function mark() {
+        Log::debug('MARK!');
+        $this->set('lastActivity',microtime());
+        return true;
+    }
+
     /**
      * @param      $name
      * @param null $default