On Thu, Feb 16, 2012 at 5:37 PM, emc_lab <[email protected]> wrote:
> A user has many user_levels and a user_level belongs to a user. We are
> having difficulty updating the user_level. Here is the code for
> user_level update:
>
> <%= simple_form_for @user do |f| %>
> <% @user.user_levels.each do |level| %>
> <%= f.fields_for :user_levels, level, :index => level do |
> builder| %>
> <p><%= render :partial => 'user_levels', :locals => {:f =>
> builder, :i_id => level.position} %></p>
> <% end %>
> <% end %>
> <% end %>
>
> The code above will display the current user_level with selected set
> to the current position. But the update was not saved for user_level.
>
> Here is the user_levels partial
>
> <div class="fields">
> <%= f.input :position, :collection => return_position, :prompt
> => "Choose position",
> :label => false, :include_blank =>
> true, :selected => i_id %>
> <%= link_to_remove_fields "remove", f %>
> </div>
>
> Here is the string posted to the server for params[:user]. There are
> currently two positions for the user and one gets deleted as update:
>
> {"name"=>"test eng", "login"=>"tester12", "password"=>"password",
> "password_confirmation"=>"password", "user_type"=>"employee",
> "user_levels_attributes"=>{"0"=>{"id"=>"5"},
> "1"=>{"position"=>"elec_eng", "_destroy"=>"false", "id"=>"6"}}}
>
> The app has no problem creating a new user with multiple user_levels.
>
> Any solution for child update? Thanks so much
>
Strange. The params hash seems correct (I did some similar tests in my
app). If I understand correctly, this should do:
* leave the user_level with id 5 untouched
* update the position of user_level with id 6 (if it was changed)
The "_destroy"=>"false" should not matter
Which one of the two user_levels gets deleted (with id 5 or id 6).
If you puts the user.user_levels (in the controller) just before the
update_attributes line, like below, you can make sure the user_levels
are still there just before.
def update
# add this to debug the status just before the update_attributes
puts user.user_levels.inspect
user.update_attributes(params[:user])
...
end
Also, you could try the update_attributes action in the rails console
to isolate the problem.
> user = User.find ...
> user.user_levels
> h = {"name"=>"test eng", "login"=>"tester12", "password"=>"password",
"password_confirmation"=>"password", "user_type"=>"employee",
"user_levels_attributes"=>{"0"=>{"id"=>"5"},
"1"=>{"position"=>"elec_eng", "_destroy"=>"false", "id"=>"6"}}}
> user.update_attributes(h)
> user.user_levels
That is how tested the expected behavior (of course with different model
names for my app).
HTH,
Peter
--
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Peter Vandenabeele
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