Fix: Fix issue with incorrect error messages

[jozzi05]

This PR fixes issues with randomly generated error codes when using extra options like :if, :on etc. Additionally, it adds a new extension to the size matcher that enables users to define custom validation context.

Error messages:

1. on example

• before:
  Size with context translation missing: en.activerecord.errors.models.size/portfolio.attributes.size_with_context.file_size_not_on
• after:
  Size with context file size must be less than 2 KB (current size is 10 KB)

2. if example

• before:
  Size with if translation missing: en.activerecord.errors.models.size/portfolio.attributes.size_with_if.file_size_not_if
• after:
  Size with if file size must be less than 2 KB (current size is 10 KB)

[igorkasyanchuk]

@Mth0158 @gr8bit do you have any comments about this PR? do you approve?

[Mth0158]

@igorkasyanchuk I'll have a look at it this weekend :)

[Mth0158]

Thanks a lot for your work @jozzi05, here are some improvements and it works for me to merge it!
@igorkasyanchuk @gr8bit let us know if something is missing

[igorkasyanchuk]

looks good for me, @Mth0158 do you approve it too?

[Mth0158]

@igorkasyanchuk fine with me, thanks again @jozzi05!

[jozzi05]

@Mth0158 No worries, I'm happy I was able to help. Thank you for providing such a lovely gem to the open-source community. 🍻

[gr8bit]

Looks fine, I like the context addition!

[jozzi05]

@igorkasyanchuk any update on this PR? 🙏

[igorkasyanchuk]

oh, sorry, I merged a different PR first and now this has conflicts. Can you please fix and I'll merge ASAP

[jozzi05]

Apologies, but changes from the master branch are gigantic. I don't really have time to investigate again how the current code handles validations and where all tests are placed. Please feel free to take inspiration from my test cases for a way to reproduce issues from the latest release to know if the issue still exists on the master branch. I'm closing this PR.

[Mth0158]

@jozzi05 sorry for the conflicts, it's due to my PR.
Reading your work, it should be simple to fix though, you could create a Contextable module to add the on matcher method in it & change the validate method in the Validatable concern. Then you could spread easily this behaviour to all our matchers (currently it only applies to the size validator).
Let me know what you think of this