>> On Thu, Jun 20, 2019 at 2:37 AM Chris Withers <ch...@withers.org
>> <mailto:ch...@withers.org>> wrote:
>>
>> Hi All,
>>
>> I have some versions that make use of the third party package I no
>> longer use, how do I collapse down alembic revisions that have
>> already
>> been executed everywhere?
>>
>> I found
>>
https://stackoverflow.com/questions/34491914/alembic-how-to-merge-all-revision-files-to-one-file
>>
>> but that doesn't feel right...
On 20/06/2019 19:00, Mike Bayer wrote:
I think the basic idea is to create a database and codebase in the
state of the target revision. Then autogenerate a migration from
nothing to that revision - just like you would do when starting to use
alembic from an existing schema. From there you can change the slug on
it so that it works as the down_revision of later migrations and clear
out the old unused migrations that you're replacing.
- Michael
I think that's what the stackoverflow answer says too.
Yep.
At the moment
that might be the most expedient approach.
Okay, TBH here the case is more that I have a couple of migrations that
use a package I want to remove as a dependency (sqlalchemy-searchable,
which is really good, fwiw, just turns out "like" querying is actually
going to work better for my needs), but I think I can just remove those
bits once all the migrations are run through...
However I can see that
Alembic might benefit from having a special option to autogenerate a
model into Python code assuming no database to start with. Feel free
to propose though Alembic is suffering from lack of contributors right now.
Gotcha, I'll come with a PR rather just asking for something, but I'm
suffering from the same problem you are ;-)
thanks as always,
Chris
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