bugfix entities gridrow, grid && improve graph design on homepage

src/Mine/SeekerBundle/Entity/Grid.php

@@ -3,6 +3,7 @@
 namespace Mine\SeekerBundle\Entity;
 
 use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 
 /**
@@ -78,4 +79,38 @@ class Grid
     {
         return $this->playedGame;
     }
+
+    /**
+     * Add gridRow
+     *
+     * @param GridRow $gridRow
+     *
+     * @return Grid
+     */
+    public function addGridRow(GridRow $gridRow)
+    {
+        $this->gridRow[] = $gridRow;
+
+        return $this;
+    }
+
+    /**
+     * Remove gridRow
+     *
+     * @param GridRow $gridRow
+     */
+    public function removeGridRow(GridRow $gridRow)
+    {
+        $this->gridRow->removeElement($gridRow);
+    }
+
+    /**
+     * Get gridRow
+     *
+     * @return Collection
+     */
+    public function getGridRow()
+    {
+        return $this->gridRow;
+    }
 }