1 files changed, 48 insertions, 3 deletions

diff --git a/plugins/Referrers/Columns/Campaign.php b/plugins/Referrers/Columns/Campaign.php
index 4413cd702f..53f86e97eb 100644
--- a/plugins/Referrers/Columns/Campaign.php
+++ b/plugins/Referrers/Columns/Campaign.php
@@ -8,13 +8,58 @@
  */
 namespace Piwik\Plugins\Referrers\Columns;
 
-use Piwik\Columns\Dimension;
+use Piwik\Common;
 use Piwik\Piwik;
+use Piwik\Tracker\Action;
+use Piwik\Tracker\Request;
+use Piwik\Tracker\TrackerConfig;
+use Piwik\Tracker\Visitor;
 
-class Campaign extends Dimension
+class Campaign extends Base
 {
+    /**
+     * Obtained from the `[Tracker] tracker_create_new_visit_when_campaign_changes` INI config option.
+     * If true, will create new visits when campaign name changes.
+     *
+     * @var bool
+     */
+    protected $createNewVisitWhenCampaignChanges;
+
+    public function __construct()
+    {
+        $this->createNewVisitWhenCampaignChanges = TrackerConfig::getConfigValue('tracker_create_new_visit_when_campaign_changes') == 1;
+    }
+
     public function getName()
     {
         return Piwik::translate('Referrers_ColumnCampaign');
     }
-}
+
+    /**
+     * If we should create a new visit when the campaign changes, check if the campaign info changed and if so
+     * force the tracker to create a new visit.
+     *
+     * @param Request $request
+     * @param Visitor $visitor
+     * @param Action|null $action
+     * @return bool
+     */
+    public function shouldForceNewVisit(Request $request, Visitor $visitor, Action $action = null)
+    {
+        if (!$this->createNewVisitWhenCampaignChanges) {
+            return false;
+        }
+
+        $information = $this->getReferrerInformationFromRequest($request);
+
+        if ($this->doesLastOrCurrentActionHaveSameReferrer($visitor, $information, Common::REFERRER_TYPE_CAMPAIGN)
+            && $this->hasReferrerInformationChanged($visitor, $information)
+        ) {
+            Common::printDebug("Existing visit detected, but creating new visit because campaign information is different than last action.");
+
+            return true;
+        }
+
+        return false;
+    }
+}
\ No newline at end of file