Adding the \"none\" option to the prerequisites see http://www.chamilo.org/es/node/146

main/newscorm/learnpath.class.php

@@ -7604,19 +7604,16 @@ class learnpath {
 		$return .= '<th width="70" height="24" style="border:1px solid gray; background-color:#F0F0F0;">' . get_lang('Minimum') . '</th>';
 		$return .= '<th width="70" height="24" style="border:1px solid gray; background-color:#F0F0F0;">' . get_lang('Maximum') . '</th>';
 		$return .= '</tr>';
-		//$return .= '<tr >';
-		//$return .= '<td class="radio" style="border:1px solid gray;border-collapse:collapse;">';
-		//$return .= '<input checked="checked" id="idNone" name="prerequisites" style="margin-left:0; margin-right:10px;" type="radio" />';
-		//$return .= '<label for="idNone">' . get_lang('None') . '</label>';
-		//$return .= '</td><td colspan="2" />';
-		//$return .= '</tr>';
 		
-		$sql = "
-					SELECT *
-					FROM " . $tbl_lp_item . "
-					WHERE
-						lp_id = " . $this->lp_id;
+		//Adding the none option to the prerequisites see http://www.chamilo.org/es/node/146	
+		$return .= '<tr >';
+		$return .= '<td colspan="3" class="radio" style="border:1px solid gray;border-collapse:collapse;">';
+		$return .= '<input checked="checked" id="idNone" name="prerequisites" style="margin-left:0; margin-right:10px;" type="radio" />';
+		$return .= '<label for="idNone">' . get_lang('None') . '</label>';
+		$return .= '</td><td />';
+		$return .= '</tr>';
 
+		$sql 	= "SELECT * FROM " . $tbl_lp_item . " WHERE lp_id = " . $this->lp_id;
 		$result = Database::query($sql);
 		$arrLP = array ();
 		while ($row = Database :: fetch_array($result)) {