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Diffstat (limited to 'guides/source/active_record_validations.md')
| -rw-r--r-- | guides/source/active_record_validations.md | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md index 665e97c470..6eb5de78be 100644 --- a/guides/source/active_record_validations.md +++ b/guides/source/active_record_validations.md @@ -490,9 +490,6 @@ If you set `:only_integer` to `true`, then it will use the regular expression to validate the attribute's value. Otherwise, it will try to convert the value to a number using `Float`. -WARNING. Note that the regular expression above allows a trailing newline -character. - ```ruby class Player < ApplicationRecord validates :points, numericality: true @@ -916,18 +913,6 @@ class Order < ApplicationRecord end ``` -### Using a String with `:if` and `:unless` - -You can also use a string that will be evaluated using `eval` and needs to -contain valid Ruby code. You should use this option only when the string -represents a really short condition. - -```ruby -class Person < ApplicationRecord - validates :surname, presence: true, if: "name.nil?" -end -``` - ### Using a Proc with `:if` and `:unless` Finally, it's possible to associate `:if` and `:unless` with a `Proc` object @@ -968,7 +953,7 @@ should happen, an `Array` can be used. Moreover, you can apply both `:if` and ```ruby class Computer < ApplicationRecord validates :mouse, presence: true, - if: ["market.retail?", :desktop?], + if: [Proc.new { |c| c.market.retail? }, :desktop?], unless: Proc.new { |c| c.trackpad.present? } end ``` |