Added support for form validations.

core/autoform.h

@@ -9,6 +9,7 @@
 #include <QDebug>
 
 #include "service.h"
+#include "ivalidator.h"
 
 template <class T>
 class AutoForm : public QWidget
@@ -18,7 +19,12 @@ public:
         m_newRec = false;
     }
 
-    virtual ~AutoForm() {}
+    virtual ~AutoForm() {
+        foreach (IValidator *val, m_validators) {
+            delete val;
+            m_validators.clear();
+        }
+    }
 
     void setEntity(QSharedPointer<T> entity) {
         m_entity = entity;
@@ -31,9 +37,14 @@ public:
         }
     }
 
+    void registerValidator(IValidator *validator) {
+        m_validators.append(validator);
+    }
+
 private:
     QSharedPointer<T> m_entity;
     QList<QWidget*> m_bindWidgets;
+    QList<IValidator*> m_validators;
     bool m_newRec;
 
     void bindToUi() {
@@ -43,20 +54,34 @@ private:
         }
     }
 
-    void bindToData() {
+    bool bindToData() {
+        foreach (IValidator *val, m_validators) {
+            if (!val->validate()) {
+                emit validationError(val->errMessage());
+                return false;
+            }
+        }
+
         foreach (QWidget *widget, m_bindWidgets) {
             const char* prop = widget->metaObject()->userProperty().name();
             ((QObject*)m_entity.data())->setProperty(widget->objectName().toStdString().c_str(), widget->property(prop));
         }
+
+        return true;
     }
 
 signals:
     void recordAdded(QSharedPointer<T> entity);
     void recordUpdated(QSharedPointer<T> entity);
+    void validationError(QString errMessage);
 
 public slots:
-    void saveRecord() {
-        bindToData();
+    bool saveRecord() {
+        if (!bindToData())
+        {
+            return false;
+        }
+
         Service<T> service;
         service.save(m_entity);
 
@@ -65,6 +90,8 @@ public slots:
         } else {
             emit recordUpdated(m_entity);
         }
+
+        return true;
     }
 };