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Merge pull request #24444 from prathamesh-sonpatki/update-message-proc-documentation

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Update example of passing a proc to `:message` option for validating records [ci skip]
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Rafael França 2016-04-06 01:01:50 -03:00
commit 659b104a00
2 changed files with 10 additions and 4 deletions
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6
guides/CHANGELOG.md
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@ -1,3 +1,9 @@
* Update example of passing a proc to `:message` option for validating records.
This behavior was recently changed in https://github.com/rails/rails/pull/24119 to
pass the object being validated as first argument to the `:message` proc
instead of key of the field being validated.
## Rails 5.0.0.beta3 (February 24, 2016) ##
* No changes.

8
guides/source/active_record_validations.md
View file

@ -785,7 +785,7 @@ A `String` `:message` value can optionally contain any/all of `%{value}`,
`%{attribute}`, and `%{model}` which will be dynamically replaced when
validation fails.
A `Proc` `:message` value is given two arguments: a message key for i18n, and
A `Proc` `:message` value is given two arguments: the object being validated, and
a hash with `:model`, `:attribute`, and `:value` key-value pairs.
```ruby
@ -801,10 +801,10 @@ class Person < ApplicationRecord
# Proc
validates :username,
uniqueness: {
# key = "activerecord.errors.models.person.attributes.username.taken"
# object = person object being validated
# data = { model: "Person", attribute: "Username", value: <username> }
message: ->(key, data) do
"#{data[:value]} taken! Try again #{Time.zone.tomorrow}"
message: ->(object, data) do
"Hey #{object.name}!, #{data[:value]} is taken already! Try again #{Time.zone.tomorrow}"
end
}
end