Rails 4 nested attributes multiple records insert instead updating

[Marius Turcu]

I'm stuck and i don't know why it is not working right. I have a model
lesson wich has many sublessons. When i update the lesson rails update
properly the lesson attributes but is creating another sublessons
records instead of just updating it.

Here is my code

View Form:
<div style="padding:13px">
<%= form_for @lesson do |f| %>
          <%= f.label :lesson_name, "Lesson title" %></br>
          <%= f.text_field :lesson_name,  class: "form-control" %></br>
          <%= f.label :lesson_icon, "Choise icon" %>
          <%= f.select "lesson_icon", options_for_select([ "ico03",
"ico04","ico05","ico06" ])%></br></br>
          <div>
           <%= f.fields_for :sublessons do |sublesson_a| %>

           <%= sublesson_a.label :sublesson_name, "Subtitle 1" %></br>
           <%= sublesson_a.text_field :sublesson_name, class:
"form-control" %></br>
           <%= sublesson_a.label :sublesson_content, "Content" %></br>
           <%=sublesson_a.text_area 'sublesson_content', rows: 3, class:
'form-control'%></br>
           <%= sublesson_a.label :sublesson_video_link, "Video link"
%><br>
           <%= sublesson_a.text_field :sublesson_video_link, class:
"form-control" %></br>
          <%end%>
         </div>
       </div>
<%= f.submit "Submit", class: "btn btn-primary" %>


<% end %>

</div>

lesson model
class Lesson < ActiveRecord::Base
   has_many :sublessons, :dependent => :destroy
   accepts_nested_attributes_for :sublessons, :reject_if => :all_blank
end
sublesson model

class Sublesson < ActiveRecord::Base
  belongs_to :lesson, :foreign_key => "lesson_id"
  validates :sublesson_name, presence: true
  validates :sublesson_content ,presence: true
end

lesson controller

def update
   @lesson = Lesson.find(params[:id])
   @sublessons=@lesson.sublessons.all
    if @lesson.update(lesson_params)
      flash[:notice] = "Lesson updated"
      redirect_to lessons_show_url
    else
      flash[:notice] = "Error"
      redirect_to lessons_show_url
    end
end

def edit
    @lesson = Lesson.find(params[:id])
    @sublessons=@lesson.sublessons.all
end


def lesson_params
params.require(:lesson).permit(:lesson_name, :lesson_icon,
sublessons_attributes:[:sublesson_id, :sublesson_name,
:sublesson_content, :sublesson_video_link])
  end

[Steve Robinson]

Hi Marius,

Can you try adding the :id attribute to the  :sublessons_attributes array in lesson_params? You need to permit the id attribute.

Thanks.

[Turcu Marius]

Thanks Steve, but now is give me error message...i write :id instead of
sublesson_id ...This :id where do he come from from?

Thanks!

--
Posted via http://www.ruby-forum.com/.

[Steve Robinson]

Marius.. not instead of :sublesson_id. You need to add the :id attribute in addition to the other nested attributes.

Btw, :id is generated as a hidden field by fields_for. Check here: http://apidock.com/rails/ActionView/Helpers/FormHelper/fields_for

Thanks!

[Turcu Marius]

Thanks Steve it's working... i have this hidden fields for adding
anothers sublessons and it's seems like it's generating some nasty
ids...if i want to create and update same time i have to make another
method i think....i 'm new to this business i'm struggle to learn the
conceps...i came from php wordpress and there are diferent stuff
<%= f.fields_for :sublessons do |sublesson_aa| %>
<div class="add_new_subtitle delete-subtitle-<%=hh%>"
style="padding-bottom: 25px;">
<%= sublesson_aa.label :sublesson_name, "Subtitle 1"
%></br>
<%= sublesson_aa.text_field :sublesson_name, class:
"form-control delete-sublesson-field-#{hh}", :value => ""%></br>
<%= sublesson_aa.label :sublesson_content, "Content" %></br>
<%=sublesson_aa.text_area 'sublesson_content', rows: 3,
class: "form-control delete-sublesson-content-#{hh}", :value =>
""%></br>
<%= sublesson_aa.label :sublesson_video_link, "Video link"
%><br>
<%= sublesson_aa.text_field :sublesson_video_link, class:
"form-control delete-sublesson-video-#{hh}", :value => "" %></br>
<a style="float:right" class="btn btn-primary"
id="remove_sublesson" onclick="remove_sublesson(<%=hh%>)">Delete
Sublesson</a>
<p style="display:none"><%= hh=hh+1%></p>
</div>
<%end%>

[Steve Robinson]

Maurius. I am not able to understand your second question :) Would be nice if you started a new thread with detailed explanation. Btw, there are a lot of resources already that show how to do this sorta stuff. Just do some searching. If you dont find luck then I suggest start a new one :)

Thanks man,

[Nikhil Thombare]

I am working on Address book and i face problem regarding how to added
dynamic column by each user. one things is each user display its own
column after add column how to submit all values inside one form.

view (e.g consider mike is user and its create name,city and address
dynamic column how three row inserted into database. )

<h1>Add Field values</h1>

<%= form_for(:detail, :url => {:controller => 'details', :action =>
'create'}) do |f| %>

<% @info.each do |a| %>
<%= f.hidden_field :columns_id, :value =>a.id %>
<p>
<td><%= a.value %></td>
<td><%= f.text_field :column_value %></td>
</p></br>
<% end %>

<%= f.hidden_field :users_id, :value => current_user.id %>
<p class="button"><%= f.submit %></p>

<% end %>


controller


class DetailsController < ApplicationController
def new
@detail = Detail.new
@info = Column.where(:users_id => current_user.id).all
end

def create
@detail = Detail.new(user_params)
if @detail.save
redirect_to new_detail_path, :notice => "Added Sucessfully!"
else
render "new"
end
end

private

def user_params
params.require(:detail).permit(:users_id,:column_value,:columns_id)
end
end