On Fri, Mar 29, 2019 at 4:39 PM Jonathan Vanasco <jvana...@gmail.com> wrote: > > I was going batty trying to figure out why a unit test kept passing, while > the functionality was clearly broken. > > I eventually realized the problem was a `filter` that didn't apply to the > actual query. > > The code was essentially this: > > result = s.query(Foo).filter(Bar.id = 1) > > but it was difficult to tell because the classes looked more like > FooVariantApples and FooVariantAardvarks > > Is there a way I can configure SqlAlchemy to raise exceptions to queries if > the filters apply to a class that is not queried or joined?
I'm assuming you mean a double equals sign there. Typically, you just need to have a few more rows in your table during unit tests to ensure that unwanted rows are not matched. However! if you'd like to go crazy, since I had a user who refused to stop complaining about this some years ago, I wrote them a cartesian product linter. Here it is! https://gist.github.com/zzzeek/c514e2c874fca54df80fc55b680e51c5 I think I was assuming that user would come back with a great success story and this could be either on the wiki or maybe even an ext or a flag you can turn on in the compiler, but I guess he was so satisfied that he never came back and I forgot all about it. So you can only use this on the condition that you report back on its general usability and if it's going to give me grief if I unleash it in the docs. > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
