Custom Error Message Rails
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vote 190 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 field is not user friendly. How can I change the title of the field itself rails error message without field name ? 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 33.7k39153210 add a comment| 10 Answers 10 active oldest votes up vote 332 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 6,26021923 16 If you are using mongoid, replace activerecord: with mongoid: –Intentss Nov 6 '11 at 14:07 82 @graywh: Where should questions about an answer be posted, if not in the comments? Here's the I18n guide: guides.rubyonrails.org/i18n.html
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 Routing from rails error message interpolation the Outside In Digging Deeper Active Support Core Extensions Rails Internationalization API
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Tasks Asset Pipeline 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 http://stackoverflow.com/questions/808547/fully-custom-validation-error-message-with-rails 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 Active Record objects. You will learn how to validate http://guides.rubyonrails.org/v3.2.13/active_record_validations_callbacks.html 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 conditional validationsPerforming Custom ValidationsCustom Validators Custom MethodsWorking with Validation Errorserrors errors[] errors.add errors[:base] errors.clear errors.sizeDisplaying Validation Errors in the Viewerror_messa
Support Search GitHub This repository Watch 2 Star 53 Fork 21 jeremydurham/custom-err-msg Code Issues 0 Pull requests 0 Projects 0 Pulse https://github.com/jeremydurham/custom-err-msg Graphs Custom Error Message Rails plugin 18 commits 1 branch 4 releases Fetching contributors MIT Ruby 100.0% Ruby Clone or download Clone with HTTPS Use Git or checkout with http://www.simonewebdesign.it/how-to-set-default-message-exception SVN using the web URL. Open in Desktop Download ZIP Find file Branch: master Switch branches/tags Branches Tags master Nothing to show 1.1.0.pre3 1.1.0.pre2 1.1.0.pre 1.0.0 Nothing to show New error message pull request Latest commit 3a8ec9d Oct 6, 2011 jeremydurham Updated for 1.1.1 release Permalink Failed to load latest commit information. lib Updated to support Rails 3.1 Oct 6, 2011 spec Grouped all requires together Jan 22, 2011 .rvmrc Added .rvmrc and Gemfile Mar 29, 2011 Gemfile Added .rvmrc and Gemfile Mar 29, 2011 Gemfile.lock Added .rvmrc and Gemfile custom error message Mar 29, 2011 LICENSE Updated LICENSE Jan 22, 2011 README.md Updated README Jan 22, 2011 Rakefile Cleaned out Rakefile and updated to rspec 2.x Dec 18, 2010 custom_error_message.gemspec Updated for 1.1.1 release Oct 6, 2011 init.rb Moved everything to where it's supposed to be Apr 17, 2009 README.md Custom Error Message This plugin gives you the option to not have your custom validation error message prefixed with the attribute name. Rails 3 and Ruby 1.9 Custom Error Message is Rails 3 and Ruby 1.9 compatible Usage Sometimes generated error messages don't make sense. validates_acceptance_of :accepted_terms, :message => 'Please accept the terms of service' This generates the error message: Accepted terms Please accept the terms of service This plugin uses the carat (^) to omit the name of the attribute from error messages: validates_acceptance_of :accepted_terms, :message => '^Please accept the terms of service' This now generates: Please accept the terms of service CREDITS This plugin was originally written by David Easley (easleydp@gmail.com) Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. Terms Privacy
raise MyError, "Something went wrong." We want to simply do: 1 raise MyError This could be useful because if we need to raise that same exception again and again, we don't have to specify the error message every time. Well, how can we do that? I spent all day figuring out the best way, actually doing very bad things - I've even attempted to monkey-patch the Kernel module!So - believe me - it's not as simple as it appears to be. Or, at least, I thought this until I stumbled across this article. In short, you just need to override Exception#message. For example: 1 2 3 4 5 6 7 8 class MyError < Exception def message "a predefined message" end end raise MyError # => MyError: a predefined message Quick note: I'm inheriting from StandardError, not Exception, because extending the Exception class in Ruby is considered really bad. Please don't inherit from it: see here and here for the reason (in few words it's because you may catch errors that are not meant to be catched, such as SyntaxError). Of course you could also create a module with your own exceptions in it: 1 2 3 4 5 6 7 8 9 10 11 12 13 module CustomError class AnErro