Hi All,
Would someone please be kind enough to help? I think I’ve got everything
right (though obviously I havent). I am putting some validation in my
model
class & expecting the error to show on the page, however it isnt. When I
submit the page with a title value, my ‘created chapter’ message appears
&
the chapter is persisted. If I submit without the title, validation
fails
(as it should), the ‘something went wrong dude’ message is shown. But
the
‘error\_message\_on(:chapter, :title)’ is not shown on the page. I’ve
tried
several things, but to no avail & I’m now tearing my (already thinning)
hair
out! Code follows.
chapter.rb has validates\_presence\_of :title
chapter\_controller.rb
class ChapterController \< ApplicationController
def add\_chapter
if request.post?
chapter = Chapter.new(params[:chapter])
previous\_chapter = Chapter.find(params[:previous\_chapter\_id]) if
params[:previous\_chapter\_id]
chapter.parent = previous\_chapter if previous\_chapter
chapter.is\_actual = false
```
if chapter.save
flash[:notice] = "created chapter #{chapter.title}"
redirect_to :action => 'add_chapter'
else
flash.now[:notice] = "something went wrong dude!"
end
end
flash[:parent_id] = params[:parent_id] if params[:parent_id]
```
end
end
add\_chapter.rhtml
\<%= stylesheet\_link\_tag 'booksite', :media =\> "all" %\> \<% if flash[:notice] -%\>
# \<%= flash[:notice] %\>
\<% end -%\> \<% form\_for :chapter, :url =\> { :action =\> :add\_chapter } do | form |%\>
Title \<%= form.text\_field :title, :size =\> 40 %\>**\<%= error\_message\_on(:chapter, :title) %\>**
```
Where I was refereing to chapter in my controller I should have been
refering to @chapter, d’oh! Coming from Java to Ruby, I need to get used
to
this 🙂