Add slice! method to ActiveModel::Errors #34489
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| # person.errors.slice!(:age, :gender) # => { :age=>["cannot be nil"], :gender=>["cannot be nil"]} | ||
| # person.errors.keys(:name, :age) # => [:name] | ||
| def slice!(*keys) | ||
| keys.inject({}) do |acc, key| |
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The messages and details are both hashes. I think it makes more sense for us to just use slice! on those like we do with merge!, right?
| person.errors.add(:gender, "cannot be nil") | ||
| person.errors.add(:city, "cannot be nil") | ||
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| removed_errors = person.errors.slice!(:age, :gender) |
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We need a test with string keys, since all other methods support both strings and symbols.
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Sure!
Should I mix strings and symbols in this test or is it better to create another test just for that?
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You can mix them if you want.
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Oh, I understand! This method should allow strings or symbols to be passed indifferently. I have a failing test now.
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Done! Tests are passing now. |
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Thank you so much! Nice work |
Add slice! method to ActiveModel::Errors rails/rails#34489
Summary
ActiveModel::Errorsimplements several methods fromHashbut not all of them.The method
slice!is provided toHashviaActiveSuportand it could be really convenient to have it as well inActiveModel::Errorsfor situations when the developer needs to delete several errors from a model.