Hi Johnny,

thanks for your reply!

On 23 Mai, 16:24, johnnybutler7 <[email protected]> wrote:
> in the checkbox list but not the entire model.  You should be able to
> get this by changing :categorizations to :categories in your blog
> controller but as i stated then the edit wont sane any updates.  Will
> see if any of the community come with something to help.

That what I had started with but if I do I get this error:

------------
NoMethodError in Blogs#index

Showing vendor/plugins/active_scaffold/frontends/default/views/
_list_record.html.erb where line #14 raised:

undefined method `blog_id=' for #<Category:0xb704fff8>

Extracted source (around line #14):

11:     <% column_value = get_column_value(record, column) -%>
12:
13:     <td class="<%= column_class(column, column_value) %>" >
14:       <%= record.authorized_for?(:action => :read, :column =>
column.name) ? render_list_column(column_value, column, record) : ''
%>
15:     </td>
16:   <% end -%>
17:   <% if active_scaffold_config.action_links.any? {|link| link.type
== :record } -%>
--------
It toook me ages to come up with the :categorizations appraoch since
it doesnt make much sense but it shows me what I want in the listing,
albeit not what I need in the edit and update view...

I really don't get from the little documentation that does exist on
the active_scaffold site once would assume that this should work,
albeit it does not... Leaves me puzzled...

>
> For your 2nd point you have a couple of options.  Probably the easiest
> is to exclude the exisiting show link like so and then add a new one
> to your config.columns.
> So in you blogs controller add :new_show to your exisiting columns
> config.columns =
> [:title, :body, :is_posted, :categorizations, :new_show ]
>
> and in you blogs helper add something like the below to make the
> new_show field an active link
> config.columns :new_show
>
> def new_show_column(record)
>      link_to "Show", :controller => 'blogs', :action => 'show', :id =>
> record)
>  end
>
> The other option is to overrite the partial that displays the action
> links which may take a bit more time digging arouns.
>

Will try the first approach :-) Looks like less work!

Cheers Juergen

> JB
>
> On 23 May, 14:05, helmerj <[email protected]> wrote:
>
> > Hi!
>
> > I have trying to switch an existing application over to
> > active_scaffold. I use several "has_many through" relationships in a
> > number of models to let the user specify a set of features for each
> > model.
>
> > I have created a simple test application using rails 2.3 and
> > active_scaffolds master branch. Following the README I have also
> > installed the render_component plugin.
>
> > I have two models, blog and category and the categorization model
> > connecting them as follows:
>
> > class Category < ActiveRecord::Base
> >   has_many :categorizations
> >   has_many :blogs, :through => :categorizations, :source => :blog
> > end
>
> > class Blog < ActiveRecord::Base
> >   has_many :categorizations
> >   has_many :categories, :through => :categorizations, :source
> > => :category
> >   validates_presence_of :title, :body
> > end
>
> > class Categorization < ActiveRecord::Base
> >   belongs_to :blog
> >   belongs_to :category
>
> > #set the name of categorizations column in blog listing to categories
> > names
> >    def to_label
> >     "#{category.name}"
> >   end
> > end
>
> > After a long struggle I have figured out how to actually have anything
> > displayed at all:
>
> > In my blogs controller I have this:
>
> > class BlogsController < ApplicationController
> >  active_scaffold :blog do |config|
> >     config.columns = [:title, :body, :is_posted, :categorizations ]
>
> >     config.columns[:categorizations].form_ui = :select
> >     config.columns[:categorizations].label = "Categories"
>
> >     config.columns[:is_posted].label = "Entry posted?"
> >     config.columns[:is_posted].form_ui = :checkbox
> >   end
> > end
>
> > This will display all categories with the correct name from the
> > category table as assigned in the categorizations table.
>
> > GREAT!
>
> > BUT:
>
> > 1. When I click on the edit button for any record I do not see all
> > categories available in the categories table but only any category
> > that is currently assign or has been assigned before, since the
> > unchecking of a category only removes the blog_id entry from the
> > categorizations table but not the entry itself.
>
> > Question: How can I have all available categories listed in the edit
> > view?
>
> > 2. The category entries are linked (http://localhost:3000/blogs/1/
> > nested?_method=get&associations=categorizations) How would I change
> > the link to the show page of the associated category?
>
> > I am sorry if this is trivial. I have tried to find a howto or any
> > other documentation on the matter but was not able to find anything
> > helpful.
>
> > Thanks in advance for any help
>
> > Cheers Juergen
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