Rails - Nov 2005 - Ajax and ruby problem validation model and error displays

hey,

in my model i have this

validates_presence_of :first_name, :last_name, :email

my popup is like 300x250, but if i have a lot of validates then the popup could
be to small. and when i submit empty textfields, my popup get stuck :s:s

now how can i implement this error displays to the user in my ajax???
my other messages about my ajax (also the code)
http://article.gmane.org/gmane.comp.lang.ruby.rails/30827

You might want to parse the validation information. I have done something
like:

def parse_errors(obj, strip=false)
return nil if obj.nil?
err = error_messages_for(obj)
err[/(.*)<p>There were problems with the following
fields:<\/p>(.*)<\/div>/]
if !err.nil?
return "" if $2.nil?
str = "<b>" + $2.to_s + "</b>"
str.gsub!(/<ul>/,'''');
str.gsub!(/<\/ul>/,'''');
str.gsub!(/''/, "\\\\''") unless strip==true
return str
end

and you can do whatever you want with the resulting string.
What I do is to render a partial that would extract the validation errors,
and using javascript it would set the content of a div that displays them.
Something like:
res.rhtml

<script>
$(''result'').innerHTML =
<%=parse_errors(''user'')%>
</script>
do_some_other_stuff()






On 11/21/05, Brutyn nick
<brutyn_nick-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org>
wrote:
>
> hey,
>
> in my model i have this
>
> validates_presence_of :first_name, :last_name, :email
>
> my popup is like 300x250, but if i have a lot of validates then the popup
> could
> be to small. and when i submit empty textfields, my popup get stuck :s:s
>
> now how can i implement this error displays to the user in my ajax???
> my other messages about my ajax (also the code)
> http://article.gmane.org/gmane.comp.lang.ruby.rails/30827
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

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I was trying to set up scaffolding, but when I go to
edit/new to add entries into my database. I get this
error

No rhtml, rxml, or delegate template found for
admin/_form

1: <h1>Editing article</h1>
2: 
3: <%= start_form_tag :action => ''update'', :id =>
@article %>
4:   <%= render_partial ''form'' %>
5:   <%= submit_tag ''Edit'' %>
6: <%= end_form_tag %>


Has anyone seen this error before? If I comment out
the "<%= render_partial ''form'' %>" line it
goes to the
edit action but nothing is displayed.




		
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hey, thanks

but i have a question,

def parse_errors(obj, strip=false)    
where does this reffer to??, how must i implement it?

I have it in application_helper.rb

On 11/21/05, Brutyn Nick
<brutyn_nick-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org>
wrote:
>
> hey, thanks
>
> but i have a question,
>
> def parse_errors(obj, strip=false)
> where does this reffer to??, how must i implement it?
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

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hey, 

cant get it to work, ...

can u put more code or so, so i know that i should do??
i got this

# Methods added to this helper will be available to all templates in the
application.
module ApplicationHelper

def parse_errors(obj, strip=false)   
      return nil if obj.nil?
      err = error_messages_for(obj)
      err[/(.*)<p>There were problems with the following
fields:<\/p>(.*)<\/div>/] if !err.nil?     
      return "" if $2.nil?
      str = "<b>" + $2.to_s + "</b>"
      str.gsub!(/<ul>/,'''');
      str.gsub!(/<\/ul>/,'''');
    #  str.gsub!(/''/, "\\\\''") unless strip==true
      return str
end

end


then i use this <%= parse_errors(''user'') %>
in my edit.rhtml, or do i this wrong, please help, cuz i need this validation,
or ajax is no good for me.

i made it work, but i need something else ;);)

this is my process til now;

-a list of users (with show and edit link)
-click on edit link, a popup with the user info
-user edits values, clicks button, buttons disables , and loading message
-after update a message is shown (succesfull or error) in a popup

and now :p

if the update is succesfull i want a refresh of the list, is this possible to
have 2 update div at the same time??

this is the edit popup (edit.rhtml):
div_user_error is the second popup with the confirmation message, and here i
want also a refresh of ''userlist''

<%= form_remote_tag ( :url => { :action => :update, :id => @user },
		:update => "div_user_error" ,
		 :loading => ''item_loading()'',
		 :complete => "new
Effect.Highlight(''user#{@user.id}'');
user_updated();changeSty(''info'',''noshow_link'');"
) %>


the confirmation message (update.rhtml)
<% if @error %>
	<%= parse_errors(''user'') %>
<% else %>
	User succesfully updated.
<% end %>

is it possible like to a ajax update even when the user doesnt click on
something, like on load of body or something???

Both Rails and Ajax are good for you, you just need to study them more...
The purpose of that parse_errors method is to format the validation errors,
if you have any.
In your case you would get them after an update or create, so you should
place that <%=parse errors(''user'') unless @user.nil?%>
in whatever .rhtml is
rendered at the end of your update request. So wherever you had before
<%=error_messages_for ''user''%> put that parse_errors
call


On 11/22/05, Brutyn nick
<brutyn_nick-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org>
wrote:
>
> hey,
>
> cant get it to work, ...
>
> can u put more code or so, so i know that i should do??
> i got this
>
> # Methods added to this helper will be available to all templates in the
> application.
> module ApplicationHelper
>
> def parse_errors(obj, strip=false)
> return nil if obj.nil?
> err = error_messages_for(obj)
> err[/(.*)<p>There were problems with the following
> fields:<\/p>(.*)<\/div>/] if !err.nil?
> return "" if $2.nil?
> str = "<b>" + $2.to_s + "</b>"
> str.gsub!(/<ul>/,'''');
> str.gsub!(/<\/ul>/,'''');
> # str.gsub!(/''/, "\\\\''") unless strip==true
> return str
> end
>
> end
>
>
> then i use this <%= parse_errors(''user'') %>
> in my edit.rhtml, or do i this wrong, please help, cuz i need this
> validation,
> or ajax is no good for me.
>
>
>
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

_______________________________________________
Rails mailing list
Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
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You can update 2 divs but you will have to update the second one yourself.
How you do it it''s up to you.
on :complete you are specifying a javascript function that receives the
content.
:complete=>''function(result){$("second").innerHTML =
result.responseText}''

Look in the generated HTML code and you will see that the Ajax request is
simply a javascript function.

<body onload="myfunc">
<script>
function myfunc(){
form=$(''my_form'')
new Ajax.Updater(''div_to_update'',
''/Controller/Action/'', {asynchronous:true,
evalScripts:true,onComplete:function(request){}, parameters:Form.serialize
(form)});
}
</script>
</body>





On 11/22/05, Brutyn nick
<brutyn_nick-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org>
wrote:
>
> i made it work, but i need something else ;);)
>
> this is my process til now;
>
> -a list of users (with show and edit link)
> -click on edit link, a popup with the user info
> -user edits values, clicks button, buttons disables , and loading message
> -after update a message is shown (succesfull or error) in a popup
>
> and now :p
>
> if the update is succesfull i want a refresh of the list, is this possible
> to
> have 2 update div at the same time??
>
> this is the edit popup (edit.rhtml):
> div_user_error is the second popup with the confirmation message, and here
> i
> want also a refresh of ''userlist''
>
> <%= form_remote_tag ( :url => { :action => :update, :id =>
@user },
> :update => "div_user_error" ,
> :loading => ''item_loading()'',
> :complete => "new
Effect.Highlight(''user#{@user.id}'');
>
user_updated();changeSty(''info'',''noshow_link'');"
) %>
>
>
> the confirmation message (update.rhtml)
> <% if @error %>
> <%= parse_errors(''user'') %>
> <% else %>
> User succesfully updated.
> <% end %>
>
> is it possible like to a ajax update even when the user doesnt click on
> something, like on load of body or something???
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

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