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Add slice! method to ActiveModel::Errors
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@ -1,3 +1,7 @@
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* Add `#slice!` method to `ActiveModel::Errors`.
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*Daniel López Prat*
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* Fix numericality validator to still use value before type cast except Active Record.
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Fixes #33651, #33686.
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@ -112,6 +112,17 @@ module ActiveModel
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@details.merge!(other.details) { |_, ary1, ary2| ary1 + ary2 }
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end
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# Removes all errors except the given keys. Returns a hash containing the removed errors.
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#
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# person.errors.keys # => [:name, :age, :gender, :city]
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# person.errors.slice!(:age, :gender) # => { :name=>["cannot be nil"], :city=>["cannot be nil"] }
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# person.errors.keys # => [:age, :gender]
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def slice!(*keys)
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keys = keys.map(&:to_sym)
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@details.slice!(*keys)
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@messages.slice!(*keys)
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end
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# Clear the error messages.
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#
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# person.errors.full_messages # => ["name cannot be nil"]
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@ -411,6 +411,30 @@ class ErrorsTest < ActiveModel::TestCase
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assert_equal({ name: [{ error: :blank }, { error: :invalid }] }, person.errors.details)
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end
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test "slice! removes all errors except the given keys" do
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person = Person.new
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person.errors.add(:name, "cannot be nil")
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person.errors.add(:age, "cannot be nil")
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person.errors.add(:gender, "cannot be nil")
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person.errors.add(:city, "cannot be nil")
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person.errors.slice!(:age, "gender")
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assert_equal [:age, :gender], person.errors.keys
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end
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test "slice! returns the deleted errors" do
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person = Person.new
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person.errors.add(:name, "cannot be nil")
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person.errors.add(:age, "cannot be nil")
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person.errors.add(:gender, "cannot be nil")
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person.errors.add(:city, "cannot be nil")
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removed_errors = person.errors.slice!(:age, "gender")
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assert_equal({ name: ["cannot be nil"], city: ["cannot be nil"] }, removed_errors)
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end
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test "errors are marshalable" do
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errors = ActiveModel::Errors.new(Person.new)
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errors.add(:name, :invalid)
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