"Yes" is the short answer, but I was hoping that explaining more about
it you'd get a little more out of my answer.
Cheers,
Richard
On Sep 27, 5:28 pm, richardun <richar...@gmail.com> wrote:
> Yourvalidationerrormessage is coming from your model. In your
> model, you have something like this:
>
> class MyModel < ActiveRecord::Base
>
> ...
>
> validates_presence_of :msg, :message => "can't be blank"
>
> ...
>
> end
>
> When you submit a form you are validating that the message someone
> enters in the column field you created in your database, which is
> called "msg" actually has something in it (validates_presence_of).
> Here, we're saying when someone submits a form and the "msg" field is
> empty, give them thiserror:
>
> <name of column> can't be blank
>
> The name of the column here is "msg." But you don't want to display
> that in yourerrorback to the client. You want it to say something
> nice like "Message can't be blank" not "msg can't be blank."
>
> So, in my method, we take the same model we have above and add the
> humanize mapping.
>
> class MyModel < ActiveRecord::Base
>
> ...
>
> validates_presence_of :msg, :message => "can't be blank"
>
> HUMANIZED_COLUMNS = {:msg => "Message"}
>
> def self.human_attribute_name(attribute)
> HUMANIZED_COLUMNS[attribute.to_sym] || super
> end
>
> end
>
> With that method, you're just mapping a hash of symbols (in this case
> you just have one - :msg) and modifying the human_attribute_name
> method that rails uses when displaying thevalidationerror. You see,
> when thevalidationfails (the value for the field was not present) it
> spits out theerrorcontaining the (humanized version) of the column
> name with the :message you gave it. Thevalidationerroris always
> humanizing the column name, but it can't make much of "msg" so it
> leaves it alone. I always suggest giving column names (in your
> database / model) when you set it up to be good column names it can
> humanize. But, if you have to have one like "msg," then you can work
> around it when it tries to humanize it.
>
> To break down the method just a little, "human_attribute_name" is a
> method in ActionRecord, but it's present here since your class
> "MyModel" inherits from ActionRecord::Base. You are essentially
> modifying it by "def"ining it here. You're just saying, when you
> "humanize" a column, for whatever reason, see if the column name is in
> my hash "HUMANIZED_COLUMNS" and use that value instead of the column
> name you're going to try to humanize.
>
> Hope that helps,
> Richard
>
> On Sep 26, 4:52 pm, bgumbiker <bogumil.bial...@gmail.com> wrote:
>
> > THanks Richard,
> > Could you post any further usage example as I am quite new in Ruby and
> > Rails and do not understand what happening below in your code. Is :msg
> > anattributein the model?
> > thanks,
> > bogumbiker
>
> > On Sep 26, 11:20 pm, richardun <richar...@gmail.com> wrote:
>
> > > Actually, bgumbiker, I just posted this answer yesterday so a bit more
> > > searching might have produced an
> > > answer.http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/...
>
> > > If you used Ranjan's answer, you'll have to enter a specific custom
> > > message for eachvalidationyou do. If you use the solution I
> > > outlined in that URL or below, you change the "humanization" version
> > > of that column name so you can do validations as normal and when the
> > > human name is used to display anerrormessage, it'll use the one you
> > > mapped.
>
> > > class Post < ActiveRecord::Base
>
> > > HUMANIZED_COLUMNS = {:msg => "Message"}
>
> > > def self.human_attribute_name(attribute)
> > > HUMANIZED_COLUMNS[attribute.to_sym] || super
> > > end
> > > end
>
> > > Richard
>
> > > On Sep 26, 5:50 am, ranjan kumar <ranjankumar...@gmail.com> wrote:
>
> > > > Try this
>
> > > > class User < ActiveRecord::Base
> > > > validate do |user|
> > > > user.errors.add_to_base("This is my custom message") if user.
> > > > attribute_name.blank?
> > > > end
> > > > end
>
> > > > On Sat, Sep 26, 2009 at 2:52 PM, bgumbiker
> > > > <bogumil.bial...@gmail.com>wrote:
>
> > > > > Hello,
> > > > > Any idea how to removeattributename fromvalidationerrormessages?
> > > > > thanks,
> > > > > bogumbiker
>
>
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