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Diffstat (limited to 'guides/source/active_record_callbacks.md')
| -rw-r--r-- | guides/source/active_record_callbacks.md | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/guides/source/active_record_callbacks.md b/guides/source/active_record_callbacks.md index 0f74daace6..5946acb412 100644 --- a/guides/source/active_record_callbacks.md +++ b/guides/source/active_record_callbacks.md @@ -1,4 +1,4 @@ -**DO NOT READ THIS FILE ON GITHUB, GUIDES ARE PUBLISHED ON http://guides.rubyonrails.org.** +**DO NOT READ THIS FILE ON GITHUB, GUIDES ARE PUBLISHED ON https://guides.rubyonrails.org.** Active Record Callbacks ======================= @@ -184,9 +184,9 @@ class Company < ApplicationRecord after_touch :log_when_employees_or_company_touched private - def log_when_employees_or_company_touched - puts 'Employee/Company was touched' - end + def log_when_employees_or_company_touched + puts 'Employee/Company was touched' + end end >> @employee = Employee.last @@ -194,8 +194,8 @@ end # triggers @employee.company.touch >> @employee.touch -Employee/Company was touched An Employee was touched +Employee/Company was touched => true ``` @@ -319,6 +319,14 @@ class Order < ApplicationRecord end ``` +As the proc is evaluated in the context of the object, it is also possible to write this as: + +```ruby +class Order < ApplicationRecord + before_save :normalize_card_number, if: Proc.new { paid_with_card? } +end +``` + ### Multiple Conditions for Callbacks When writing conditional callbacks, it is possible to mix both `:if` and `:unless` in the same callback declaration: |