Rails Model Error Messages
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Validations Active Record Callbacks Active Record Associations Active Record Query Interface Views Layouts and Rendering in Rails Action View rails validation message Form Helpers Controllers Action Controller Overview Rails Routing from the Outside activerecord errors In Digging Deeper Active Support Core Extensions Rails Internationalization API Action Mailer Basics Active Job Basics
Rails Error Messages In View
Testing Rails Applications Securing Rails Applications Debugging Rails Applications Configuring Rails Applications Rails Command Line Tools and Rake Tasks Asset Pipeline Working with JavaScript in Rails Autoloading
Activerecord Errors Full Messages
and Reloading Constants Caching with Rails: An Overview Using Rails for API-only Applications Action Cable Overview Extending Rails Rails on Rack Creating and Customizing Rails Generators Contributing to Ruby on Rails Contributing to Ruby on Rails API Documentation Guidelines Ruby on Rails Guides Guidelines Maintenance Policy Maintenance Policy Release Notes Upgrading Ruby on rails custom error messages Rails Ruby on Rails 5.0 Release Notes Ruby on Rails 4.2 Release Notes Ruby on Rails 4.1 Release Notes Ruby on Rails 4.0 Release Notes Ruby on Rails 3.2 Release Notes Ruby on Rails 3.1 Release Notes Ruby on Rails 3.0 Release Notes Ruby on Rails 2.3 Release Notes Ruby on Rails 2.2 Release Notes Contribute Credits Guides Index Getting Started with Rails Active Record Basics Active Record Migrations Active Record Validations Active Record Callbacks Active Record Associations Active Record Query Interface Layouts and Rendering in Rails Action View Form Helpers Action Controller Overview Rails Routing from the Outside In Active Support Core Extensions Rails Internationalization API Action Mailer Basics Active Job Basics Testing Rails Applications Securing Rails Applications Debugging Rails Applications Configuring Rails Applications Rails Command Line Tools and Rake Tasks Asset Pipeline Working with JavaScript in Rails Autoloading and Reloading Constants Caching with Rails: An Overview Using Rails for API-only Applications Action Cable Overview Rails on Rac
Record Validations and Callbacks Active Record Associations Active Record Query Interface Views Layouts and Rendering in Rails Action View Form Helpers Controllers Action Controller Overview
Rails Custom Validations
Rails Routing from the Outside In Digging Deeper Active Support Core rails exceptions Extensions Rails Internationalization API Securing Rails Applications Debugging Rails Applications Performance Testing Rails Applications Configuring Rails Applications Rails unknown validator: 'messagevalidator' Command Line Tools and Rake Tasks Asset Pipeline Extending Rails Rails on Rack Creating and Customizing Rails Generators Contributing to Ruby on Rails Contributing to Ruby on Rails API http://guides.rubyonrails.org/active_record_validations.html Documentation Guidelines Ruby on Rails Guides Guidelines Release Notes Ruby on Rails 3.2 Release Notes Ruby on Rails 3.1 Release Notes Ruby on Rails 3.0 Release Notes Ruby on Rails 2.3 Release Notes Ruby on Rails 2.2 Release Notes Contribute Credits Active Record Validations and Callbacks This guide teaches you how to hook into the life cycle of your http://guides.rubyonrails.org/v3.2.13/active_record_validations_callbacks.html Active Record objects. You will learn how to validate the state of objects before they go into the database, and how to perform custom operations at certain points in the object life cycle. After reading this guide and trying out the presented concepts, we hope that you'll be able to: Understand the life cycle of Active Record objects Use the built-in Active Record validation helpers Create your own custom validation methods Work with the error messages generated by the validation process Create callback methods that respond to events in the object life cycle Create special classes that encapsulate common behavior for your callbacks Create Observers that respond to life cycle events outside of the original class Chapters The Object Life CycleValidations OverviewWhy Use Validations? When Does Validation Happen? Skipping Validations valid? and invalid? errors[]Validation Helpersacceptance validates_associated confirmation exclusion format inclusion length numericality presence uniqueness validates_with validates_eachCommon Validation Options:allow_nil :allow_blank :message :onConditional ValidationUsing a Symbol with :if and :unless Using a String with :if and :unless Using a Proc with :if and :unless Grouping condi
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies http://stackoverflow.com/questions/808547/fully-custom-validation-error-message-with-rails of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: error messages Sign up Fully custom validation error message with Rails up vote 191 down vote favorite 108 Using Rails I'm trying to get an error message like "The song field can't be empty" on save. Doing the following: validates_presence_of :song_rep_xyz, :message => "can't be empty" ... only displays "Song Rep XYW can't be empty", which is not good because the title of the rails model error field is not user friendly. How can I change the title of the field itself ? I could change the actual name of the field in the database, but I have multiple "song" fields and I do need to have specific field names. I don't want to hack around rails' validation process and I feel there should be a way of fixing that. ruby-on-rails share|improve this question edited Jun 14 '10 at 10:08 asked Apr 30 '09 at 19:05 marcgg 33.9k39153210 add a comment| 10 Answers 10 active oldest votes up vote 334 down vote accepted Now, the accepted way to set the humanized names and custom error messages is to use locales. # config/locales/en.yml en: activerecord: attributes: user: email: "E-mail address" errors: models: user: attributes: email: blank: "is required" Now the humanized name and the presence validation message for the "email" attribute have been changed. Validation messages can be set for a specific model+attribute, model, attribute, or globally. share|improve this answer edited Oct 17 '12 at 16:30 answered May 18 '10 at 16:43 graywh 6,30021923 16 If you are using mongoid, replace a