class BaseInlineModel(models.Model): #history
    field_name    = None
    parent        = None
    ignore_fields = []
    changed = []


class JobStep(BaseInlineModel):
    job           = models.ForeignKey(Job, related_name='jobstep_job')
    step_type     = models.ForeignKey(Status, limit_choices_to = {'is_step': True}, related_name='step_type_job', verbose_name=_('Step Type'), null=True, blank=True )
    due_date      = models.DateTimeField(_('Due Date'), null=True, blank=True)

    language_from = models.ForeignKey(common.models.Language,related_name=('language_from'), blank=True, null=True)
    language_to   = models.ForeignKey(common.models.Language,related_name=('language_to'), blank=True, null=True)

    owner         = models.ForeignKey(User, related_name='user_service', null=True, blank=True)
    price         = models.DecimalField(_('Price'),decimal_places=2,max_digits=15, null=True, blank=True)