Synnefo

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from astakos.im.retry_xctx import RetryTransactionHandler

from astakos.im.notification_xctx import NotificationTransactionContext

from astakos.im.models import sync_projects

from astakos.im.project_error import project_error_view

# USAGE

# =====

# @project_transaction_context(sync=True)

# def a_view(args, ctx=None):

#     ...

#     if ctx:

#         ctx.mark_rollback()

#     ...

#     return http response

#

# OR (more cleanly)

#

# def a_view(args):

#     with project_transaction_context(sync=True) as ctx:

#         ...

#         ctx.mark_rollback()

#         ...

#         return http response

def project_transaction_context(**kwargs):

    return RetryTransactionHandler(ctx=ProjectTransactionContext,

                                   on_fail=project_error_view,

                                   **kwargs)

class ProjectTransactionContext(NotificationTransactionContext):

    def __init__(self, sync=False, **kwargs):

        self._sync = sync

        NotificationTransactionContext.__init__(self, **kwargs)

    def postprocess(self):

        if self._sync:

            sync_projects()

        NotificationTransactionContext.postprocess(self)