As a pre-requisite for being able to query the database for objects
that are expired, I need a way to express date comparison on the
'deleted_at' field which is common for every Watcher object. As they
are coming from mixins, I decided to implement these filters with a
syntax borrowed from the Django ORM where the field is suffixed by the
comparison operator you want to apply:
- The '__lt' suffix stands for 'less than'
- The '__lte' suffix stands for 'less than or equal to'
- The '__gt' suffix stands for 'greater than'
- The '__gte' suffix stands for 'greater than or equal to'
- The '__eq' suffix stands for 'equal to'
I also added a 'uuid' filter to later on be able to filter by uuid.
Partially Implements: blueprint db-purge-engine
Change-Id: I763f330c1b8ea8395990d2276b71e87f5b3f3ddc
The InvalidParameterValue exception does not define a meaningful
msg_fmt. It is currently _("%(err)s"), which is the equivalent of
nothing and does not help with translation.
Replace InvalidParameterValue with Invalid exceptions.
Change-Id: If8b064e446cbc97e380127f360f262be9e8877a1
Closes-Bug: #1538398
