[Rails5] Add `safe_params` helper
What does this MR do?
Rails 5.0 requires to explicitly permit attributes when building a URL using current params object.
The safe_params helper allows developers to just call safe_params.merge(...) instead of manually adding permit to every call.
This MR adds the safe_params helper and replaces some calls of params with safe_params to get rails5 tests green.
Not every call of params has been replaced, but only those that have been caught locally by running rails5 tests.
Are there points in the code the reviewer needs to double check?
No.
Why was this MR needed?
Migration to Rails 5.0.
Screenshots (if relevant)
No.
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added -
Tests added for this feature/bug - Review
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Has been reviewed by UX -
Has been reviewed by Frontend -
Has been reviewed by Backend -
Has been reviewed by Database
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Conform by the merge request performance guides -
Conform by the style guides -
Squashed related commits together -
Internationalization required/considered -
End-to-end tests pass ( package-and-qamanual pipeline job)