Rails 5.2 support

[kylekermgard]

It looks like baby_squeel isn't working with joins in rails 5.2.0.beta2.

[rzane]

Yup, this is a top priority. I'll work on this ASAP.

[rzane]

Okay, I spend some time looking into this. It should be solvable, but it's going to take quite a bit more research. So far, I've identified the source of the changes that caused 5.2 to break:

• https://github.com/rails/rails/commit/8ad8bbaef8c4f521f292765a02ddb91e48160366#diff-bf6dd6226db3aab589916f09236881c7
• https://github.com/rails/rails/commit/c5ab6e51a7b9ee05a2d262a72c7130b9c1d1b0ce#diff-bf6dd6226db3aab589916f09236881c7
• https://github.com/rails/rails/commit/40cadf52db5e21349f6ecd9c4dc9b89d42ebc986#diff-bf6dd6226db3aab589916f09236881c7

Also, most of the failures are due to missing or extra parens in the generated SQL.

[rzane]

I'm working on this in #87. It's really close!

[kapso]

has_many & has_one via through is breaking on Rails 5.2 because of this gem

[rzane]

Yeah 5.2 is currently broken. Support for 5.2 waiting on this PR: https://github.com/rzane/baby_squeel/pull/87