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# Chuck this in config/initializers for view-first validations | |
ActionView::Base.default_form_builder.class_eval do | |
def error(field) | |
errors(field).first | |
end | |
def errors(field) | |
object.errors.for(field) | |
end | |
end | |
ActiveRecord::Errors.class_eval do | |
def generate_message(attribute, message = :invalid, options = {}) | |
message | |
end | |
def for(attribute) | |
case err = self.on(attribute) | |
when String, Symbol: [err] | |
when Array: err | |
when NilClass: [] | |
end | |
end | |
end |
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-# And you can use it in a view like so: | |
- form_for :user, @user, register_path do |f| | |
%fieldset | |
!= f.label :name | |
!= f.text_field :name | |
- if f.error(:name) === :blank | |
.error.name_blank= _("You don't have a name??") | |
!= f.label :email | |
!= f.text_field :email | |
- case f.error(:email) | |
- when :blank | |
.error.email_blank= _("You don't have an email??") | |
- when :invalid | |
.error.email_format= _("That doesn't look like an email address!") | |
- when :taken | |
.error.email_taken | |
_("There is an account already registered with that email address.") | |
%a{:href => root_path(:email => @user.email)} _("Log in instead?") | |
- when :foo | |
.error.foo= _("You need to foo first") | |
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class User < ActiveRecord::Base | |
validates_presence_of :email, :name, :password, | |
validates_format_of :email, :with => /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i, :allow_blank => true | |
validates_uniqueness_of :email, :case_sensitive => false | |
my_custom_validates_of :email, :message => :foo | |
end |
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