Finished archive panel

12 files changed, 237 insertions, 72 deletions

diff --git a/src/org/traccar/web/client/Application.java b/src/org/traccar/web/client/Application.java
index 9b14d42..22f20d8 100644
--- a/src/org/traccar/web/client/Application.java
+++ b/src/org/traccar/web/client/Application.java
@@ -1,8 +1,6 @@
 package org.traccar.web.client;
 
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
 import org.traccar.web.client.controller.ArchiveController;
 import org.traccar.web.client.controller.DeviceController;
@@ -33,7 +31,7 @@ public class Application {
     public Application() {
         deviceController = new DeviceController(deviceHandler);
         mapController = new MapController();
-        archiveController = new ArchiveController(archiveHanlder);
+        archiveController = new ArchiveController(archiveHanlder, deviceController.getDeviceStore());
 
         view = new ApplicationView(
                 deviceController.getView(), mapController.getView(), archiveController.getView());
@@ -47,16 +45,10 @@ public class Application {
         archiveController.run();
     }
 
-    private Map<Long, Device> devices = new HashMap<Long, Device>();
-
     private DeviceController.DeviceHandler deviceHandler = new DeviceController.DeviceHandler() {
 
         @Override
         public void onLoad(List<Device> devices) {
-            Application.this.devices.clear();
-            for (Device device : devices) {
-                Application.this.devices.put(device.getId(), device);
-            }
         }
 
         @Override
@@ -66,21 +58,15 @@ public class Application {
 
         @Override
         public void onAdd(Device device) {
-            devices.put(device.getId(), device);
-            archiveController.updateDevices(devices.values());
             mapController.update();
         }
 
         @Override
         public void onUpdate(Device device) {
-            devices.put(device.getId(), device);
-            archiveController.updateDevices(devices.values());
         }
 
         @Override
         public void onRemove(Device device) {
-            devices.remove(device.getId());
-            archiveController.updateDevices(devices.values());
             mapController.update();
         }
 
diff --git a/src/org/traccar/web/client/controller/ArchiveController.java b/src/org/traccar/web/client/controller/ArchiveController.java
index 598a744..9f865b6 100644
--- a/src/org/traccar/web/client/controller/ArchiveController.java
+++ b/src/org/traccar/web/client/controller/ArchiveController.java
@@ -1,12 +1,19 @@
 package org.traccar.web.client.controller;
 
-import java.util.Collection;
+import java.util.Date;
+import java.util.List;
 
+import org.traccar.web.client.Application;
+import org.traccar.web.client.model.BaseAsyncCallback;
+import org.traccar.web.client.model.PositionProperties;
 import org.traccar.web.client.view.ArchiveView;
 import org.traccar.web.shared.model.Device;
 import org.traccar.web.shared.model.Position;
 
+import com.google.gwt.core.client.GWT;
+import com.sencha.gxt.data.shared.ListStore;
 import com.sencha.gxt.widget.core.client.ContentPanel;
+import com.sencha.gxt.widget.core.client.box.AlertMessageBox;
 
 public class ArchiveController implements ContentController, ArchiveView.ArchiveHandler {
 
@@ -16,11 +23,19 @@ public class ArchiveController implements ContentController, ArchiveView.Archive
 
     private ArchiveHandler archiveHandler;
 
+    private ListStore<Position> positionStore;
+
     private ArchiveView archiveView;
 
-    public ArchiveController(ArchiveHandler archiveHandler) {
+    public ArchiveController(ArchiveHandler archiveHandler, ListStore<Device> deviceStore) {
         this.archiveHandler = archiveHandler;
-        archiveView = new ArchiveView(this);
+        PositionProperties positionProperties = GWT.create(PositionProperties.class);
+        positionStore = new ListStore<Position>(positionProperties.id());
+        archiveView = new ArchiveView(this, positionStore, deviceStore);
+    }
+
+    public ListStore<Position> getPositionStore() {
+        return positionStore;
     }
 
     @Override
@@ -32,13 +47,29 @@ public class ArchiveController implements ContentController, ArchiveView.Archive
     public void run() {
     }
 
-    public void updateDevices(Collection<Device> devices) {
+    @Override
+    public void onSelected(Position position) {
+        archiveHandler.onSelected(position);
+    }
 
+    @Override
+    public void onLoad(Device device, Date from, Date to) {
+        if (device != null && from != null && to != null) {
+            Application.getDataService().getPositions(device, from, to, new BaseAsyncCallback<List<Position>>() {
+                @Override
+                public void onSuccess(List<Position> result) {
+                    positionStore.clear();
+                    positionStore.addAll(result);
+                }
+            });
+        } else {
+            new AlertMessageBox("Error", "All form fields must be filled first").show();
+        }
     }
 
     @Override
-    public void onSelected(Position position) {
-        archiveHandler.onSelected(position);
+    public void onClear() {
+        positionStore.clear();
     }
 
 }
diff --git a/src/org/traccar/web/client/controller/DeviceController.java b/src/org/traccar/web/client/controller/DeviceController.java
index b24c205..865aaea 100644
--- a/src/org/traccar/web/client/controller/DeviceController.java
+++ b/src/org/traccar/web/client/controller/DeviceController.java
@@ -4,10 +4,13 @@ import java.util.List;
 
 import org.traccar.web.client.Application;
 import org.traccar.web.client.model.BaseAsyncCallback;
+import org.traccar.web.client.model.DeviceProperties;
 import org.traccar.web.client.view.DeviceDialog;
 import org.traccar.web.client.view.DeviceView;
 import org.traccar.web.shared.model.Device;
 
+import com.google.gwt.core.client.GWT;
+import com.sencha.gxt.data.shared.ListStore;
 import com.sencha.gxt.widget.core.client.ContentPanel;
 import com.sencha.gxt.widget.core.client.Dialog.PredefinedButton;
 import com.sencha.gxt.widget.core.client.box.ConfirmMessageBox;
@@ -26,11 +29,19 @@ public class DeviceController implements ContentController, DeviceView.DeviceHan
 
     private DeviceHandler deviceHandler;
 
+    private ListStore<Device> deviceStore;
+
     private DeviceView deviceView;
 
     public DeviceController(DeviceHandler deviceHandler) {
         this.deviceHandler = deviceHandler;
-        deviceView = new DeviceView(this);
+        DeviceProperties deviceProperties = GWT.create(DeviceProperties.class);
+        deviceStore = new ListStore<Device>(deviceProperties.id());
+        deviceView = new DeviceView(this, deviceStore);
+    }
+
+    public ListStore<Device> getDeviceStore() {
+        return deviceStore;
     }
 
     @Override
@@ -43,7 +54,7 @@ public class DeviceController implements ContentController, DeviceView.DeviceHan
         Application.getDataService().getDevices(new BaseAsyncCallback<List<Device>>() {
             @Override
             public void onSuccess(List<Device> result) {
-                deviceView.load(result);
+                deviceStore.addAll(result);
                 deviceHandler.onLoad(result);
             }
         });
@@ -62,7 +73,7 @@ public class DeviceController implements ContentController, DeviceView.DeviceHan
                 Application.getDataService().addDevice(device, new BaseAsyncCallback<Device>() {
                     @Override
                     public void onSuccess(Device result) {
-                        deviceView.add(result);
+                        deviceStore.add(result);
                         deviceHandler.onAdd(result);
                     }
                 });
@@ -78,7 +89,7 @@ public class DeviceController implements ContentController, DeviceView.DeviceHan
                 Application.getDataService().updateDevice(device, new BaseAsyncCallback<Device>() {
                     @Override
                     public void onSuccess(Device result) {
-                        deviceView.update(result);
+                        deviceStore.update(result);
                         deviceHandler.onUpdate(result);
                     }
                 });
@@ -96,7 +107,7 @@ public class DeviceController implements ContentController, DeviceView.DeviceHan
                     Application.getDataService().removeDevice(device, new BaseAsyncCallback<Device>() {
                         @Override
                         public void onSuccess(Device result) {
-                            deviceView.remove(device);
+                            deviceStore.remove(device);
                             deviceHandler.onRemove(device);
                         }
                     });
diff --git a/src/org/traccar/web/client/controller/MapController.java b/src/org/traccar/web/client/controller/MapController.java
index 5a53cf2..5ab5bbc 100644
--- a/src/org/traccar/web/client/controller/MapController.java
+++ b/src/org/traccar/web/client/controller/MapController.java
@@ -1,9 +1,14 @@
 package org.traccar.web.client.controller;
 
+import java.util.List;
+
+import org.traccar.web.client.Application;
 import org.traccar.web.client.view.MapView;
 import org.traccar.web.shared.model.Device;
+import org.traccar.web.shared.model.Position;
 
 import com.google.gwt.user.client.Timer;
+import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.sencha.gxt.widget.core.client.ContentPanel;
 
 public class MapController implements ContentController {
@@ -36,7 +41,7 @@ public class MapController implements ContentController {
 
     public void update() {
         updateTimer.cancel();
-        /*Application.getDataService().getLatestPositions(new AsyncCallback<List<Position>>() {
+        Application.getDataService().getLatestPositions(new AsyncCallback<List<Position>>() {
             @Override
             public void onSuccess(List<Position> result) {
                 mapView.showPositions(result);
@@ -46,7 +51,7 @@ public class MapController implements ContentController {
             public void onFailure(Throwable caught) {
                 updateTimer.schedule(UPDATE_INTERVAL);
             }
-        });*/
+        });
     }
 
     public void select(Device device) {
diff --git a/src/org/traccar/web/client/model/BaseStoreHandlers.java b/src/org/traccar/web/client/model/BaseStoreHandlers.java
new file mode 100644
index 0000000..ed4e541
--- /dev/null
+++ b/src/org/traccar/web/client/model/BaseStoreHandlers.java
@@ -0,0 +1,58 @@
+package org.traccar.web.client.model;
+
+import com.sencha.gxt.data.shared.event.StoreAddEvent;
+import com.sencha.gxt.data.shared.event.StoreClearEvent;
+import com.sencha.gxt.data.shared.event.StoreDataChangeEvent;
+import com.sencha.gxt.data.shared.event.StoreFilterEvent;
+import com.sencha.gxt.data.shared.event.StoreHandlers;
+import com.sencha.gxt.data.shared.event.StoreRecordChangeEvent;
+import com.sencha.gxt.data.shared.event.StoreRemoveEvent;
+import com.sencha.gxt.data.shared.event.StoreSortEvent;
+import com.sencha.gxt.data.shared.event.StoreUpdateEvent;
+
+public class BaseStoreHandlers<T> implements StoreHandlers<T> {
+
+    @Override
+    public void onAdd(StoreAddEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onRemove(StoreRemoveEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onFilter(StoreFilterEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onClear(StoreClearEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onUpdate(StoreUpdateEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onDataChange(StoreDataChangeEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onRecordChange(StoreRecordChangeEvent<T> event) {
+        onAnything();
+    }
+
+    @Override
+    public void onSort(StoreSortEvent<T> event) {
+        onAnything();
+    }
+
+    public void onAnything() {
+    }
+
+}
diff --git a/src/org/traccar/web/client/model/DeviceProperties.java b/src/org/traccar/web/client/model/DeviceProperties.java
index 2c56ff6..2ba4d47 100644
--- a/src/org/traccar/web/client/model/DeviceProperties.java
+++ b/src/org/traccar/web/client/model/DeviceProperties.java
@@ -2,7 +2,9 @@ package org.traccar.web.client.model;
 
 import org.traccar.web.shared.model.Device;
 
+import com.google.gwt.editor.client.Editor.Path;
 import com.sencha.gxt.core.client.ValueProvider;
+import com.sencha.gxt.data.shared.LabelProvider;
 import com.sencha.gxt.data.shared.ModelKeyProvider;
 import com.sencha.gxt.data.shared.PropertyAccess;
 
@@ -14,4 +16,7 @@ public interface DeviceProperties extends PropertyAccess<Device> {
 
     ValueProvider<Device, String> name();
 
+    @Path("name")
+    LabelProvider<Device> label();
+
 }
diff --git a/src/org/traccar/web/client/view/ArchiveView.java b/src/org/traccar/web/client/view/ArchiveView.java
index 79621ba..f61ffcc 100644
--- a/src/org/traccar/web/client/view/ArchiveView.java
+++ b/src/org/traccar/web/client/view/ArchiveView.java
@@ -4,7 +4,10 @@ import java.util.Date;
 import java.util.LinkedList;
 import java.util.List;
 
+import org.traccar.web.client.model.BaseStoreHandlers;
+import org.traccar.web.client.model.DeviceProperties;
 import org.traccar.web.client.model.PositionProperties;
+import org.traccar.web.shared.model.Device;
 import org.traccar.web.shared.model.Position;
 
 import com.google.gwt.cell.client.DateCell;
@@ -12,15 +15,21 @@ import com.google.gwt.core.client.GWT;
 import com.google.gwt.i18n.client.DateTimeFormat;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
-import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.uibinder.client.UiHandler;
 import com.google.gwt.user.client.ui.Widget;
+import com.sencha.gxt.core.client.Style.SelectionMode;
 import com.sencha.gxt.data.shared.ListStore;
+import com.sencha.gxt.data.shared.event.StoreHandlers;
 import com.sencha.gxt.widget.core.client.ContentPanel;
+import com.sencha.gxt.widget.core.client.event.SelectEvent;
+import com.sencha.gxt.widget.core.client.form.ComboBox;
+import com.sencha.gxt.widget.core.client.form.DateField;
+import com.sencha.gxt.widget.core.client.form.TimeField;
 import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
 import com.sencha.gxt.widget.core.client.grid.ColumnModel;
 import com.sencha.gxt.widget.core.client.grid.Grid;
 
-public class ArchiveView extends Composite {
+public class ArchiveView {
 
     private static ArchiveViewUiBinder uiBinder = GWT.create(ArchiveViewUiBinder.class);
 
@@ -29,6 +38,8 @@ public class ArchiveView extends Composite {
 
     public interface ArchiveHandler {
         public void onSelected(Position position);
+        public void onLoad(Device device, Date from, Date to);
+        public void onClear();
     }
 
     private ArchiveHandler archiveHandler;
@@ -40,17 +51,40 @@ public class ArchiveView extends Composite {
         return contentPanel;
     }
 
+    ListStore<Device> deviceStore;
+
+    @UiField
+    DateField fromDate;
+
+    @UiField
+    TimeField fromTime;
+
+    @UiField
+    DateField toDate;
+
+    @UiField
+    TimeField toTime;
+
+    @UiField(provided = true)
+    ComboBox<Device> deviceCombo;
+
     @UiField(provided = true)
     ColumnModel<Position> columnModel;
 
     @UiField(provided = true)
-    ListStore<Position> store;
+    ListStore<Position> positionStore;
 
     @UiField
     Grid<Position> grid;
 
-    public ArchiveView(ArchiveHandler archiveHandler) {
+    public ArchiveView(ArchiveHandler archiveHandler, ListStore<Position> positionStore, ListStore<Device> deviceStore) {
         this.archiveHandler = archiveHandler;
+        this.positionStore = positionStore;
+        deviceStore.addStoreHandlers(deviceStoreHandlers);
+        this.deviceStore = deviceStore;
+
+        DeviceProperties deviceProperties = GWT.create(DeviceProperties.class);
+        deviceCombo = new ComboBox<Device>(deviceStore, deviceProperties.label());
 
         PositionProperties positionProperties = GWT.create(PositionProperties.class);
 
@@ -71,9 +105,51 @@ public class ArchiveView extends Composite {
 
         columnModel = new ColumnModel<Position>(columnConfigList);
 
-        store = new ListStore<Position>(positionProperties.id());
-
         uiBinder.createAndBindUi(this);
+
+        grid.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
+
+        // Initialize with current time
+        Date now = new Date();
+        fromDate.setValue(now);
+        fromTime.setValue(now);
+        toDate.setValue(now);
+        toTime.setValue(now);
+    }
+
+    @SuppressWarnings("deprecation")
+    private static Date getCombineDate(DateField dateField, TimeField timeField) {
+        Date result = null;
+        Date date = dateField.getValue();
+        Date time = timeField.getValue();
+        if (date != null && time != null) {
+            result = new Date(
+                    date.getYear(), date.getMonth(), date.getDate(),
+                    time.getHours(), time.getMinutes(), time.getSeconds());
+        }
+        return result;
+    }
+
+    @UiHandler("loadButton")
+    public void onLoadClicked(SelectEvent event) {
+        archiveHandler.onLoad(
+                deviceCombo.getValue(),
+                getCombineDate(fromDate, fromTime),
+                getCombineDate(toDate, toTime));
+    }
+
+    @UiHandler("clearButton")
+    public void onClearClicked(SelectEvent event) {
+        archiveHandler.onClear();
     }
 
+    private StoreHandlers<Device> deviceStoreHandlers = new BaseStoreHandlers<Device>() {
+
+        @Override
+        public void onAnything() {
+            deviceCombo.setValue(deviceStore.findModel(deviceCombo.getValue()));
+        }
+
+    };
+
 }
diff --git a/src/org/traccar/web/client/view/ArchiveView.ui.xml b/src/org/traccar/web/client/view/ArchiveView.ui.xml
index 370eb02..f27d38f 100644
--- a/src/org/traccar/web/client/view/ArchiveView.ui.xml
+++ b/src/org/traccar/web/client/view/ArchiveView.ui.xml
@@ -16,7 +16,7 @@
     <ui:attributes width="1" height="1" />
   </ui:with>
 
-  <ui:with type="com.sencha.gxt.data.shared.ListStore" field="store" />
+  <ui:with type="com.sencha.gxt.data.shared.ListStore" field="positionStore" />
   <ui:with type="com.sencha.gxt.widget.core.client.grid.ColumnModel" field="columnModel" />
 
   <ui:with type="com.sencha.gxt.widget.core.client.grid.GridView" field="view">
@@ -30,28 +30,30 @@
         <toolbar:ToolBar>
 
           <toolbar:LabelToolItem label="Device:" />
-          <form:TimeField /> <!-- put combobox here -->
+          <form:ComboBox ui:field="deviceCombo" editable="false" triggerAction="ALL" />
           <toolbar:SeparatorToolItem />
 
           <toolbar:LabelToolItem label="From:" />
-          <form:DateField width="125" />
+          <form:DateField width="125" ui:field="fromDate" />
           <toolbar:LabelToolItem width="5" />
-          <form:TimeField width="75" />
+          <form:TimeField width="75" ui:field="fromTime" triggerAction="ALL" />
           <toolbar:SeparatorToolItem />
 
           <toolbar:LabelToolItem label="To:" />
-          <form:DateField width="125" />
+          <form:DateField width="125" ui:field="toDate" />
           <toolbar:LabelToolItem width="5" />
-          <form:TimeField width="75" />
+          <form:TimeField width="75" ui:field="toTime" triggerAction="ALL" />
           <toolbar:SeparatorToolItem />
-          
+
           <button:TextButton ui:field="loadButton" text="Load" />
-        
+          <toolbar:FillToolItem />
+          <button:TextButton ui:field="clearButton" text="Clear" />
+
         </toolbar:ToolBar>
       </container:child>
       
       <container:child layoutData="{layoutData}">
-        <grid:Grid ui:field="grid" store="{store}" cm="{columnModel}" view="{view}" />
+        <grid:Grid ui:field="grid" store="{positionStore}" cm="{columnModel}" view="{view}" />
       </container:child>
 
     </container:VerticalLayoutContainer>
diff --git a/src/org/traccar/web/client/view/DeviceView.java b/src/org/traccar/web/client/view/DeviceView.java
index 157973e..1213e5f 100644
--- a/src/org/traccar/web/client/view/DeviceView.java
+++ b/src/org/traccar/web/client/view/DeviceView.java
@@ -1,6 +1,5 @@
 package org.traccar.web.client.view;
 
-import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -11,7 +10,6 @@ import com.google.gwt.core.client.GWT;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.uibinder.client.UiHandler;
-import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.Widget;
 import com.sencha.gxt.core.client.Style.SelectionMode;
 import com.sencha.gxt.data.shared.ListStore;
@@ -23,7 +21,7 @@ import com.sencha.gxt.widget.core.client.grid.ColumnModel;
 import com.sencha.gxt.widget.core.client.grid.Grid;
 import com.sencha.gxt.widget.core.client.selection.SelectionChangedEvent;
 
-public class DeviceView extends Composite implements SelectionChangedEvent.SelectionChangedHandler<Device> {
+public class DeviceView implements SelectionChangedEvent.SelectionChangedHandler<Device> {
 
     private static DeviceViewUiBinder uiBinder = GWT.create(DeviceViewUiBinder.class);
 
@@ -59,13 +57,14 @@ public class DeviceView extends Composite implements SelectionChangedEvent.Selec
     ColumnModel<Device> columnModel;
 
     @UiField(provided = true)
-    ListStore<Device> store;
+    ListStore<Device> deviceStore;
 
     @UiField
     Grid<Device> grid;
 
-    public DeviceView(DeviceHandler deviceHandler) {
+    public DeviceView(DeviceHandler deviceHandler, ListStore<Device> deviceStore) {
         this.deviceHandler = deviceHandler;
+        this.deviceStore = deviceStore;
 
         DeviceProperties deviceProperties = GWT.create(DeviceProperties.class);
 
@@ -74,8 +73,6 @@ public class DeviceView extends Composite implements SelectionChangedEvent.Selec
         columnConfigList.add(new ColumnConfig<Device, String>(deviceProperties.uniqueId(), 0, "Unique Identifier"));
         columnModel = new ColumnModel<Device>(columnConfigList);
 
-        store = new ListStore<Device>(deviceProperties.id());
-
         uiBinder.createAndBindUi(this);
 
         grid.getSelectionModel().addSelectionChangedHandler(this);
@@ -94,35 +91,19 @@ public class DeviceView extends Composite implements SelectionChangedEvent.Selec
         }
     }
 
-    public void load(Collection<Device> devices) {
-        store.addAll(devices);
-    }
-
     @UiHandler("addButton")
     public void onAddClicked(SelectEvent event) {
         deviceHandler.onAdd();
     }
 
-    public void add(Device device) {
-        store.add(store.size(), device);
-    }
-
     @UiHandler("editButton")
     public void onEditClicked(SelectEvent event) {
         deviceHandler.onEdit(grid.getSelectionModel().getSelectedItem());
     }
 
-    public void update(Device device) {
-        store.update(device);
-    }
-
     @UiHandler("removeButton")
     public void onRemoveClicked(SelectEvent event) {
         deviceHandler.onRemove(grid.getSelectionModel().getSelectedItem());
     }
 
-    public void remove(Device device) {
-        store.remove(device);
-    }
-
 }
diff --git a/src/org/traccar/web/client/view/DeviceView.ui.xml b/src/org/traccar/web/client/view/DeviceView.ui.xml
index d9988d5..af1b33c 100644
--- a/src/org/traccar/web/client/view/DeviceView.ui.xml
+++ b/src/org/traccar/web/client/view/DeviceView.ui.xml
@@ -15,7 +15,7 @@
     <ui:attributes width="1" height="1" />
   </ui:with>
   
-  <ui:with type="com.sencha.gxt.data.shared.ListStore" field="store" />
+  <ui:with type="com.sencha.gxt.data.shared.ListStore" field="deviceStore" />
   <ui:with type="com.sencha.gxt.widget.core.client.grid.ColumnModel" field="columnModel" />
   
   <ui:with type="com.sencha.gxt.widget.core.client.grid.GridView" field="view">
@@ -37,7 +37,7 @@
       </container:child>
       
       <container:child layoutData="{layoutData}">
-        <grid:Grid ui:field="grid" store="{store}" cm="{columnModel}" view="{view}" />
+        <grid:Grid ui:field="grid" store="{deviceStore}" cm="{columnModel}" view="{view}" />
       </container:child>
 
     </container:VerticalLayoutContainer>
diff --git a/src/org/traccar/web/server/model/DataServiceImpl.java b/src/org/traccar/web/server/model/DataServiceImpl.java
index cfcc622..f9d0e7e 100644
--- a/src/org/traccar/web/server/model/DataServiceImpl.java
+++ b/src/org/traccar/web/server/model/DataServiceImpl.java
@@ -90,8 +90,10 @@ public class DataServiceImpl extends RemoteServiceServlet implements DataService
         entityManager.getTransaction().begin();
         try {
             entityManager.persist(user);
-        } finally {
             entityManager.getTransaction().commit();
+        } catch (Exception e) {
+            entityManager.getTransaction().rollback();
+            throw e;
         }
         setUser(user);
         return true;
@@ -112,8 +114,10 @@ public class DataServiceImpl extends RemoteServiceServlet implements DataService
         try {
             entityManager.persist(device);
             user.getDevices().add(device);
-        } finally {
             entityManager.getTransaction().commit();
+        } catch (Exception e) {
+            entityManager.getTransaction().rollback();
+            throw e;
         }
         return device;
     }
@@ -123,8 +127,10 @@ public class DataServiceImpl extends RemoteServiceServlet implements DataService
         entityManager.getTransaction().begin();
         try {
             device = entityManager.merge(device);
-        } finally {
             entityManager.getTransaction().commit();
+        } catch (Exception e) {
+            entityManager.getTransaction().rollback();
+            throw e;
         }
         return device;
     }
@@ -137,8 +143,10 @@ public class DataServiceImpl extends RemoteServiceServlet implements DataService
             device = entityManager.merge(device);
             user.getDevices().remove(device);
             entityManager.remove(device);
-        } finally {
             entityManager.getTransaction().commit();
+        } catch (Exception e) {
+            entityManager.getTransaction().rollback();
+            throw e;
         }
         return device;
     }
diff --git a/src/org/traccar/web/shared/model/Position.java b/src/org/traccar/web/shared/model/Position.java
index 1382730..2980860 100644
--- a/src/org/traccar/web/shared/model/Position.java
+++ b/src/org/traccar/web/shared/model/Position.java
@@ -11,6 +11,8 @@ import javax.persistence.Table;
 
 import org.hibernate.annotations.Index;
 
+//INSERT INTO positions (device_id, valid, time, latitude, longitude, altitude, speed, course) VALUES (11, 1, NOW(), 60, 30, 0, 0, 0);
+
 @Entity
 @Table(name = "positions")
 public class Position implements Serializable, Cloneable {