#234 SimpleForm (revised)

How does fields_for work for simple form?

Does simple form work for dynamic select menus?
http://railscasts.com/episodes/88-dynamic-select-menus-revised
Please if someone has an example, would be very helpful.

I cannot post all my code here since even with simple_form, my form is quite large, but here is the gist:

= simple_form_for @contract do |f|
  %h3= "General Information"
  %table
    %tr
      %td
        = f.association :state, :collection => State.all, :include_blank => true
      %td
        = f.input :county_id do
          = f.grouped_collection_select :county_id, State.order(:name), :counties, :name, :id, :name, include_blank: true

Then you use the following coffeescript markup in app/assets/javascripts/contracts.js.coffee file:

jQuery ->
  counties = $('#contract_county_id').html()
  $('#contract_state_id').change ->
    state_id = $(this).val()
    state = $('#contract_state_id :selected').text()
    options = $(counties).filter("optgroup[label='#{state}']").html()
    if options
      $('#contract_county_id').html(options)
      $('#contract_county_id').parent().show()
    else
      $('#contract_county_id').empty()
      $('#contract_county_id').parent().hide()

So there is nothing that Simple form specific here really. It is the code from aforementioned revised screencast on dynamic menus tweaked for my own simple form.

Hey Thanks Ryan,
Now the stage is all set for a set of Pro (Advanced) screencasts for leveraging SimpleForms with Twitter Bootstrap :)
Keep up the great work!

how woud someone use simple form to generate something like below. As you can see the input is wrapped with a div.

<div class="input-section">
        <label class="label_form">Label<span>*</span></label>
        <div class="input_form">
                <input type="text" id="form_input" name="name" placeholder="name">
        </div>
</div>

How would SimpleForm work with a form that isn't associated with an object? For example, a login form.

I m very new to ruby on rails, so can you help me.

I m getting the following error

NoMethodError in Users#new

undefined method `simple_form_for' for #<#<Class:0x5ae0f40>:0x463f218>

this is my new form

<%= simple_form_for @user do |f| %>
        
          <%= f.input :service_number %>
          <%= f.input :password %>
          <%= f.button :submit %>
          
<% end %>

this is my user controller

class UsersController < ApplicationController
  def index
    
  end
  
  def new
    @user = User.new
  end

  def create
    @user = User.new(params[:user])
    if @user.save
      session[:user_id] = @user.id
      redirect_to root_url, notice: "Thank you for signing up!"
    else
      render "new"
    end
  end
  
end

Does anyone have a good css snippet for vertical-aligning the label in the middle of a text area?

how does one output a field as a label? I have a user id. A user cannot edit the user id. One way is to set it to disabled, but that doesn't look so nice and gives the impression that it is an editable field.

Thanks Ryan!

What about a revised version of Formtastic? This will be great.

Have a nice weekend.

Is there any way to make simple_form work nice with ancestry?

I have alerts which have many categories, and categories are nested with ancestry.

Currently I'm using:

<%= f.association :category, :collection => Category.sort_by_ancestry(@organization.categories), :as => :check_boxes %>

But I would like to have categories nested visually.

Is there a way to get "No File Chosen" to stay hidden, until the user uploads a file? I'm using Simple_Form and Paperclip in my app. Tried some examples on StackOverflow but none them worked out.

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