prepare changes

src/udi/database/database.go

@@ -70,5 +70,27 @@ func (self *DatabaseHandle) GetDeviceByLabelAndApplication(applicationLabel stri
   return &device, nil
 }
 
+func (self *DatabaseHandle) GetDeviceByLabel(deviceLabel string) (*Device, error) {
+  if ! self.initialized {
+    err := fmt.Errorf("Database connection not initialized")
+    return nil, err
+  }
+
+  var device Device
+  result := self.dbh.
+    Preload("Application").
+    Preload("DeviceType").
+    Where("devices.label = ?", deviceLabel).
+    First(&device)
+
+  if result.Error != nil {
+    err := fmt.Errorf("Query failed: %s", result.Error)
+    return nil, err
+  }
+
+  return &device, nil
+}
+
+