Ajax bootstrap modal in rails 4.. Newbie here!

[Pepeng Agimat]

Good day, I'm a beginner in rails I already develop a simple app in rails but i want to upgrade the app to be an ajax, I already created the first model customer but in the second model project where customer has many projects and project belongs_to customer, those ajax form modal that i copy in a tutorial didn't work. I experiencing some error in CRUD in project part.. I'm not familiar in nested resources and the Ajax part.

this is the error: "ActiveRecord::RecordNotFound (Couldn't find Customer without an ID):

  app/controllers/projects_controller.rb:14:in `create'"

Project Controller

******************************************************

class ProjectsController < ApplicationController

respond_to :html, :js

def index

@customer = Customer.find(params[:customer_id])

end

def new

customer = Customer.find(params[:customer_id])

@project = customer.projects.new

end

def create

@customer = Customer.find(params[:customer_id])

@project = Customer.projects.create(project_params)

end

private

def project_params

params.require(:project).permit(:project_name, :project_description, :project_started, :project_estimated_to_end, :project_status)

end

end

***************************************************

Project model and Customer model

**************************************************

class Project < ActiveRecord::Base

belongs_to :customer

end

class Customer < ActiveRecord::Base

has_many :projects

validates :customer_name, presence: true

validates :customer_company, presence: true

validates :customer_email, presence: true

validates :customer_desc, presence: true

end

****************************************************

projects/_form.html.erb

***************************************************

<%= form_for @project, remote: true, html: { class: "form-horizontal", style: "display:inline;" } do |f| %>

  <div class="modal-body">

    <ul class="errors"></ul>

    <div class="control-group">

      <%= f.label :project_name, class:"control-label" %>

      <div class="controls">

        <%= f.text_field :project_name %>

      </div>

    </div>

    <div class="control-group">

      <%= f.label :project_started, class: "control-label" %>

      <div class="controls">

        <%= f.date_select :project_started %>

      </div>

    </div>

    <div class="control-group">

      <%= f.label :project_estimated_to_end, class: "control-label" %>

      <div class="controls">

        <%= f.date_select :project_estimated_to_end %>

      </div>

    </div>

    <div class="control-group">

      <%= f.label :project_status, class: "control-label" %>

      <div class="controls">

        <%= f.select :project_status,['Doing','Done'], prompt: true %>

      </div>

    </div>

    <div class="control-group">

      <%= f.label :project_description, class: "control-label" %>

      <div class="controls">

        <%= f.text_field :project_description %>

      </div>

    </div>

  </div>

  <div class="modal-footer">

    <%= f.submit class: "btn btn-primary" %>

    <%= link_to "Cancel", "#", class: "btn", data: {dismiss: "modal"} %>

  </div>

<% end %>

*********************************************

projects/_index.html.erb

*********************************************

<% @customer.projects.each do |project| %>

  <tr>

    <td><%= project.project_name %></td>

<td><%= project.project_description %></td>

<td><%= project.project_started %></td>

<td><%= project.project_estimated_to_end %></td>

<td><%= project.project_status %></td>

  </tr>

<% end %>

***********************************************

projects/_new.html.erb

***********************************************

<div class="modal-header">

<h3>New Project</h3>

</div>

<%= render "form" %>

**********************************************

projects/_save.html.erb

*********************************************

$("ul.errors").html("")

<% if @project.errors.any? %>

  <% @project.errors.full_messages.each do |message| %>

    $("ul.errors").append($("<li />").html("<%= message.html_safe %>"))

  <% end %>

<% else %>

  $(".product-index").html("<%= escape_javascript(render 'index') %>")

  $("#product-modal").modal("hide")

<% end %>

******************************************

projects/create.js.erb

******************************************

<%= render "save" %>

******************************************

projects/index.html.erb

************************************

<section class="container">

  <section class="row">

    <h1>Project Table</h1>

    <%= link_to "New Project", new_customer_project_path(@customer), remote: true, class: "btn btn-primary" %>

    <div class="new-product"></div>

    <table class='table' id='people_table'>

      <thead>

        <tr>

          <th>Project Name</th>

          <th>Project Description</th>

          <th>Projct Started</th>

          <th>Project Estimated to end</th>

          <th>Status</th>

          <th>Action</th>

        </tr>

      </thead>

      <tbody class="product-index">

        <%= render "index" %>

      </tbody>

    </table>

    <div id="product-modal" class="modal fade">

      <div class="modal-dialog">

       <div id="inner-product-modal" class="modal-content"></div>

      </div>

    </div>

  </section>

</section>

**********************************

projects/new.js.erb

*******************************************

$("#inner-product-modal").html("<%= escape_javascript(render 'new') %>")

$("#product-modal").modal("show")

*************************************************

routes.rb

  resources :customers do

    get "delete"

    resources :projects

  end

  resources :projects

  root :to => "customers#index"

Hope you can help me.. Thank you!

[Colin Law]

On 18 October 2014 15:09, Pepeng Agimat <eebas...@gmail.com> wrote:
> Good day, I'm a beginner in rails I already develop a simple app in rails
> but i want to upgrade the app to be an ajax, I already created the first
> model customer but in the second model project where customer has many
> projects and project belongs_to customer, those ajax form modal that i copy
> in a tutorial didn't work. I experiencing some error in CRUD in project
> part.. I'm not familiar in nested resources and the Ajax part.
>
> this is the error: "ActiveRecord::RecordNotFound (Couldn't find Customer
> without an ID):
> app/controllers/projects_controller.rb:14:in `create'"
>

> ...

> def create
> @customer = Customer.find(params[:customer_id])

I guess that params[:customer_id] is null. Check in development.log
and you will see what parameters are being posted.

Colin

[Sampath Munasinghe]

Use customer has_many: :projects
accepts_nested_attributes_for :projects

and then make customer view to handle project data or  ( if u need above approach ) add customer id to above _form.html. 

if u need further help, please let me know. :)

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[Pepeng Agimat]

Thank you so much Mr. Colin I solved the problem. I forget i used the instance of the customer

 [def create

@customer = Customer.find(params[:customer_id])

@project = Customer.projects.create(project_params)

end] .. 

 It should be 

 [def create

@customer = Customer.find(params[:customer_id])

@project = @customer.projects.create(project_params)

end] .. 

:D

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[Pepeng Agimat]

Thank you so much Mr. Sampath. I solved the problem. I forget that  i should used the instance of the customer

 [def create

@customer = Customer.find(params[:customer_id])

@project = Customer.projects.create(project_params)

end] .. 

 It should be 

 [def create

@customer = Customer.find(params[:customer_id])

@project = @customer.projects.create(project_params)

end] .. 

:D is it okay to you sir if I ask some question if I can't resolve some problem or become my mentor. I want to learn more in rails 4. :)  

To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAJgSRnZbdvNbyCUk%2BVRJaGaqnL2H0W25yBcpAh%3DSoSfsFLvSxw%40mail.gmail.com.