ADD dblog to your config_dev.yml

monolog:
    handlers:
        main:
            type:   stream
            path:   "%kernel.logs_dir%/%kernel.environment%.log"
            level:  debug
        console:
            type:   console
            bubble: false
        dblog:
            type: service
            level: debug
            id: lifestyle_monolog_db

ADD the orm connection 
    orm:
        default_entity_manager: Backend
        entity_managers:
            Backend:
                connection: Backend
                mappings:
                    SsoBackendBundle:  ~
                    FOSUserBundle: ~
                    LifeStyleToolsDbLogBundle:  ~


LOAD in Appkernel.php

new LifeStyle\Tools\DbLogBundle\LifeStyleToolsDbLogBundle(),

ADD to your routing

life_style_tools_db_log:
    resource: "@LifeStyleToolsDbLogBundle/Resources/config/routing.yml"
    prefix:   /