Synnefo

def handle_resource_commission(resource, action, commission_name,

                               commission_info=None, force=False,

                               auto_accept=False):

    """Handle a issuing of a commission for a resource.

    Create a new commission for a resource based on the action that

    is performed. If the resource has a previous pending commission,

    resolved it before issuing the new one.

    """

    # Try to resolve previous serial

    resolve_commission(resource.serial)

    # Check if action is quotable and issue the corresponding commission

    serial = None

    if commission_info is None:

        commission_info = get_commission_info(resource, action=action)

    if commission_info is not None:

        # Issue new commission, associate it with the resource

        if commission_name is None:

            commission_name = "client: api, resource %s" % resource

        serial = issue_commission(user=resource.userid,

                                  source=DEFAULT_SOURCE,

                                  provisions=commission_info,

                                  name=commission_name,

                                  force=False,

                                  auto_accept=False)

    resource.serial = serial

def resolve_commission(serial):

    if serial is None or serial.resolved:

        return