Database error handling.

core/gridform.h

@@ -10,8 +10,8 @@
 #include "autotablemodel.h"
 #include "context.h"
 #include "iplugin.h"
-
 #include "igridform.h"
+#include "iservice.h"
 
 template<class T>
 class GridForm : public IGridForm
@@ -20,14 +20,15 @@ class GridForm : public IGridForm
 public:
     explicit GridForm(QWidget *parent = 0) :
     IGridForm(parent)
-{
-    m_form = NULL;
-    m_tableModel = NULL;
-    m_formHandler = new DefaultFormHandler();
+    {
+        m_serviceConnected = false;
+        m_tableModel = NULL;
+        m_formHandler = new DefaultFormHandler();
+
+        m_filterUi = new FilterUi(this, new T);
+        filterWidget()->layout()->addWidget(m_filterUi);
+    }
 
-    m_filterUi = new FilterUi(this, new T);
-    filterWidget()->layout()->addWidget(m_filterUi);
-}
     virtual ~GridForm()
     {
         if (m_form != NULL && m_form->parent() == NULL)
@@ -43,20 +44,26 @@ public:
         delete m_formHandler;
     }
 
-    void setForm(AutoForm<T> *form) {
+    void setForm(AutoForm<T> *aForm) {
         Q_ASSERT(m_form == NULL);
 
-        m_form = form;
+        m_form = aForm;
 
         connect(m_form, &IForm::recordAdded, [this](){
-            service()->save(m_form->entity());
-            m_tableModel->addRow(m_form->entity());
+            //service()->save(form()->entity());
+            m_tableModel->addRow(form()->entity());
             emit dataChanged();
         });
         connect(m_form, &IForm::recordUpdated, [this](){
-            service()->update(m_form->entity());
+            //service()->update(form()->entity());
             emit dataChanged();
         });
+        connect(m_form, &IForm::refreshEntity, [this](){
+            if (m_tableModel != NULL) {
+                m_tableModel->setItemToIndex(tableView()->currentIndex(),
+                                             service()->reload(m_tableModel->itemFromIndex(tableView()->currentIndex())->id()));
+            }
+        });
     }
 
     void setTableModel(AutoTableModel<T> *tableModel) {
@@ -79,6 +86,8 @@ public slots:
             return;
         }
 
+        connectService();
+
         m_tableModel->setData(service()->all());
         tableView()->setModel(m_tableModel);
 
@@ -93,7 +102,6 @@ public slots:
     }
 
 private:
-    AutoForm<T> *m_form;
     AutoTableModel<T> *m_tableModel;
     IFormHandler *m_formHandler;
 
@@ -113,6 +121,26 @@ private:
         return service;
     }
 
+    AutoForm<T> *form() {
+        return (AutoForm<T>*)m_form;
+    }
+
+    void connectService() {
+        if (!m_serviceConnected)
+        {
+            connect(service(), &IService::dbErrorRead, [this](QString msg) {
+               QMessageBox::critical(this, tr("Database error"), tr(msg.toStdString().c_str()));
+            });
+            connect(service(), &IService::dbErrorDelete, [this](QString msg) {
+               QMessageBox::critical(this, tr("Database error"), tr(msg.toStdString().c_str()));
+            });
+
+            m_serviceConnected = true;
+        }
+    }
+
+    bool m_serviceConnected;
+
     // IGridForm interface
 protected:
     void handleNewRecord() override
@@ -123,8 +151,8 @@ protected:
             return;
         }
 
-        m_form->setEntity(QSharedPointer<T>(new T()));
-        m_form->setNewRec(true);
+        form()->setEntity(QSharedPointer<T>(new T()));
+        form()->setNewRec(true);
         m_formHandler->showForm(m_form);
     }
 
@@ -136,13 +164,14 @@ protected:
             return;
         }
 
-        m_form->setEntity(m_tableModel->itemFromIndex(tableView()->currentIndex()));
-        m_form->setNewRec(false);
+        form()->setEntity(m_tableModel->itemFromIndex(tableView()->currentIndex()));
+        form()->setNewRec(false);
         m_formHandler->showForm(m_form);
     }
 
     void handleDeleteRecord() override
     {
+        connectService();
         if (m_form == NULL || m_tableModel == NULL || tableView()->currentIndex().row() < 0)
         {
             Q_ASSERT(false);