Update DB model
Update DB model

VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs,VerkhovtsovPavel/BSUIR_Labs