Rails has introduced new way to validate attributes inside model. When I use
validates :title, :presence => true
it works but when I try to add a custom message
validates :title, :presence => true,:message => "Story title is required"
an error is generated
Unknown validator: 'message'
Try this
validates :title, presence: { message: "Story title is required" }
=> true gone in this answer? Is it not necessary?
presence.
:base, for example errors.add(:base, "Story title is required)Actually, I did this in a better way. If you want to remove the field title from the message you should use this on your _form.htmk.erb view:
As you can see inside this view:
<ul>
<% @article.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
Replace it by:
<ul>
<% @article.errors.each_with_index do |msg, i| %>
<li><%= msg[1] %></li>
<% end %>
</ul>
A custom message for a boolean with conditionals might be:
validates :foo, inclusion: { in: [true, false], message: "cannot be blank" }, if: :bar?
You can use HUMANIZED_ATTRIBUTES of rails 3 . For example in above case, it will be like :
HUMANIZED_ATTRIBUTES = {
:title => "story"
}
def self.human_attribute_name(attr, options={})
HUMANIZED_ATTRIBUTES[attr.to_sym] || super
end
It will give you error message, replacing model attribute title with story.
