Added support for import data from file.

core/service.h

@@ -14,6 +14,7 @@
 #include "context.h"
 #include "iservice.h"
 #include "permissionevaluator.h"
+#include "iimporter.h"
 
 #include "transaction.h"
 
@@ -178,6 +179,33 @@ public:
         }
     }
 
+    bool importData(IImporter *importer) {
+        int count = importer->recordCount();
+
+        if (importer->isError()) {
+            return false;
+        }
+
+        for (int i = 0; i < count - 1; i++) {
+            QSharedPointer<QObject> qentity = importer->nextRecord();
+
+            if (importer->isError() || qentity.isNull()) {
+                return false;
+            }
+
+            QSharedPointer<T> entity = qentity.dynamicCast<T>();
+            if (!entity.isNull()) {
+                this->save(entity);
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
 protected:
     bool checkPermission(const QString &permission) {
         if (!m_pluginId.isEmpty()) {