* Add checkCodeUsed and modify project api.

framework/api/entry.class.php

@@ -481,6 +481,19 @@ class baseEntry
         }
     }
 
+    /**
+     * 检查是否在后台启用了代号.
+     * Check whether config->setCode are used in product,project,execution.
+     *
+     * @access public
+     * @return bool
+     */
+    public function checkCodeUsed()
+    {
+        return isset($this->config->setCode) ? $this->config->setCode : 0;
+    }
+
+
     /**
      * 格式化数据的字段类型.
      * Format fields of response data.