Ruby on Rails

On Jun 26, 2012, at 4:23 PM, cyber c. wrote:

> Hi,
>
> Thanks for the suggestions. I have now included the code to display the
> error messages. Here is the code for my MVC
>
> model
> class Record
> include ActiveModel::Validations
> validates: :ipaddress, :name, :presence => true
> end
>
> View
>
> <%= form_for :Record, :url => {:action => 'submit'} do |f| %>

Leave off the {:action} part here, I'll explain why in a moment

> <%= f.error_messages %>
> <div class="field">
> <%= f.label :ipaddress %><br />
> <%= f.text_field :ipaddress %>
> </div>
> <div class="field">
> <%= f.label :name %><br />
> <%= f.text_field :name %>
> </div>
> <div class="actions">
> <%= f.submit "Submit"%>
> </div>
> <% end %>
>
> Controller
> Somehow this gets routed to action "create" instead of "submit" when the
> submit button is called. Not sure why it is

If your routes look like

resources :yourmodel

Then you are using REST URLs, and a POST from your form will always go to #create, and a PUT (which you will automatically get from the form_for if your resource has an id) will always go to #update. If you want to use the submit method in place of create, you can probably do that in your routes file, but why?

>
> def create -> same for def submit too
>
> respond_to do |format|
> if PARAM matches so and so
> DEPENDING on params this gets routed to different page

at any point here do you instantiate a new instance of your model, assign the params to it, and try to save it? Until you try to save, your validations won't fire.

> else
> format.html { redirect_to records_url}
> format.json { head :no_content }
> end
> end
>
> end
>
> Should i write my controller differently to handle the errors?

You might want to look at a vanilla scaffold controller and see how it's done canonically before you reinvent the wheel. There are separate create and update methods for a reason.

Walter

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