def license_2_license_id(self, license_title, logger=None):
# import is here, as it creates a dependency on ckan, which
# many importers won't want
from ckan.model.license import LicenseRegister
licenses = LicenseRegister()
license_obj = licenses.get_by_title(license_title)
if license_obj:
return u"%s" % license_obj.id
else:
logger("Warning: No license name matches '%s'. Ignoring license." % license_title)
