error_messages_for on Rails 2.0.2

[macsig]

Hello, does something change on Rails 2.0.2 about the using of error_messages_for helper ???

I have just started a new project on 2.0.2 (the first one with this Rails version) and I did, like always

app_controller

  def add_category
      @category = Category.new(params[:category])

      if request.post? and @category.save
        flash[:notice] = 'Category successfully created'
      end
      
       redirect_to :action => "settings" 
  end
  
end

settings.html.erb

<%= error_messages_for "category" %>

But it doesn't show any error message.

Thank you

[nueva]

that's strange, it should work.......let me have a better look on some documentation........

[macsig]

thanks
I appreciate it

[nueva]

you are welcome.....

[macsig]

Did you find something about this issue ???


Thanks buddy

[nueva]

nope, not at the moment, sorry........

[macsig]

Thanks buddy.

Someone else has some idea ???

[nueva]

no problem mate, if you want i can give u some documentation, maybe you can find the error....

[macsig]

Thanks but I have already checked it out.

I hope someone can help me.

BYE

[nueva]

def add_category
  @category = Category.new(params[:category])
 
  if request.post? and @category.save
    flash[:notice] = 'Category successfully created'
  end
    
  redirect_to :action => "settings"
end
end

You have two ends in your def? Maybe that is it?
The error_messages_for is not an error it is code that is located in your view.
Is it not working as expected?

Let me know.....

[macsig]

There are 2 end simply because the second is the controller end.

It doesn't work at all, for instance I validate the presence of the "name" field and when I submit the form without name, the values are nor saved but no message is showed.


Thanks

[ReggieB]

settings.html.erb

<&#37;= error_messages_for "category" %>

But it doesn't show any error message.

What do you get if you put that code in the view template that contains the input form? It might also be worth trying a symbol for category rather than a string:

<%= error_messages_for :category %>

Often you can use either, but sometimes a symbol will work where a string won't.

[macsig]

Thanks I tried both symbol and string with the same result: nothing is showed.

The helper is already in the same view with the form.

<div class="admin_form_wrap">
	<&#37; form_for :category, :url => { :action => :add_category}, :html => { :id => "main_form"}  do |form| %>
		<div class="element_wrap">
			<span id="name">
				<label for="category_name" class="mandatory_field_name">new</label>
				<%= form.text_field :name, :class => "text_field" %>
		</div>
		<div class="admin_button_wrap"><a class="submit_button" href="#" onclick="submitform('main_form')"><span>add</span></a></div>	
	<% end %>
</div>

<div id="error">
<%= error_messages_for :category %>
</div>

Thanks

[nueva]

In your controller, you need to tell the action to rerender the page, but your code, regardless of state always does a redirect, which means it reinitiates your object, losing your errors.

To solve it you need something like this:

def add_category
  @category = Category.new(params[:category])
 
  if request.post? and @category.save  # here I have succeeded and can move on
    flash[:notice] = 'Category successfully created'
    redirect_to :action => "settings"
  else  # here I rerender the page to show the errors captured in the @category object
    flash[:error] = 'Category could not be created'
    render :action => 'add_category'
  end    
end

[macsig]

thanks buddy
I solved it 10 minutes ago

[nueva]

you are welcome, glad i could help...