RSpec
Ruby on Rails
Ruby
method
on
v2.0.3 -
Show latest stable
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Class: ActiveResource::Errors
- 1.0.0
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- 6.1.3.1
- 6.1.7.7
- 7.0.0
- 7.1.3.2
- What's this?
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new
(>= v2.1.0)
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[]
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add
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add_to_base
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clear
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count
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each
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each_full
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from_array
(>= v2.3.8)
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from_json
(>= v2.3.8)
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from_xml
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full_messages
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invalid?
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length
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on
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on_base
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size
= private
= protected
on(attribute)
public
A method to return the errors associated with attribute, which returns nil, if no errors are associated with the specified attribute, the error message if one error is associated with the specified attribute, or an array of error messages if more than one error is associated with the specified attribute.
Examples
my_person = Person.new(params[:person]) my_person.errors.on('login') # => nil my_person.errors.add('login', 'can not be empty') if my_person.login == '' my_person.errors.on('login') # => 'can not be empty' my_person.errors.add('login', 'can not be longer than 10 characters') if my_person.login.length > 10 my_person.errors.on('login') # => ['can not be empty', 'can not be longer than 10 characters']
