Ruby on Rails

> On Mar 27, 2018, at 9:20 AM, fugee ohu <fugee279@gmail.com> wrote:
>
> Actually the first thing is see when I visit that link is the use of validate without the s

The validate method is used along with a custom validator method. The validates method is "built in" and uses a DSL to specify how you want the validations to work.

validate :has_a_bow_on_top?

private

def has_a_bow_on_top?
unless bow&.on_top?
errors[:bow].add "must be on top"
false
end
end

The built-in validates method is configured like this:

validates :bow, presence: true

This is a very basic example, there are lots more things you can do with it. For all of our sakes, please read this entire page: http://guides.rubyonrails.org/active_record_validations.html

Walter

>
> On Tuesday, March 27, 2018 at 6:54:34 AM UTC-4, Allen Maxwell wrote:
> It might help to have the models for auction and user... also, I like to add the annotate gem which gives some header comments in all my models to show what fields etc are there. Very helpful info and references.
>
> you already know that the validate needs to be validates...
>
> is this an active system or SUD? do you have a solid development database that is well populated to test/develop against?
>
> this link may help some: http://guides.rubyonrails.org/active_record_validations.html#custom-methods
>
> other than that I'd have to see it in action to debug further.
>
> Good luck
>
> Max
>
> On Monday, March 26, 2018 at 6:17:56 PM UTC-6, fugee ohu wrote:
> This model has some errors that I wasn't able to get sorted out the two lines that begin with validate should be validates but after that I don't understand what the author's trying to do If I change them to validates I get the error Unknown validator: 'MessageValidator' for validate :auction_active?, message: :auction_active
>
>
> class Bid < ActiveRecord::Base
> belongs_to :auction
> belongs_to :user
>
> validates :auction, :user, presence: true
> validate :auction_active?, message: :auction_active
> validate :last_user_different?
>
> scope :sorted, -> { order(:created_at) }
>
> after_create :update_auction
>
> private
>
> def auction_active?
> if auction && !auction.active?
> if auction.finished?
> errors.add(:auction, :finished)
> else
> errors.add(:auction, :not_started)
> end
> end
> end
>
> def last_user_different?
> if auction && user
> errors.add(:user, :same_user_twice) if auction.last_user == user
> end
> end
>
> def update_auction
> auction.increase_price_and_time
> auction.publish_updates
> end
> end
>
>
> --
> You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
> To post to this group, send email to rubyonrails-talk@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/b8ab4f9b-1682-4006-8d91-8f2c556f34e6%40googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/9B8A922E-409D-4DBF-951D-8F01AD01A245%40wdstudio.com.
For more options, visit https://groups.google.com/d/optout.