I have a Post model and Comment, and Post has_many Comment and I wanna real-timely update the comment when you are in a specific post, meaning, the comments live-updating should only visible when multiple users are in the same post, for example: in posts/6
For View I have:
<div>
<p>
<strong>Title:</strong>
<%= post.title %>
</p>
<p>
<strong>Content:</strong>
<%= post.content %>
</p>
<p>
<strong>User:</strong>
<%= post.user.username %>
</p>
</div>
<hr/>
<%= form_for [post, Comment.new] do |f| %>
Body: <%= f.text_area :body, rows: 5, cols: 20 %>
<%= f.submit "Submit" %>
<% end %>
<hr/>
<h1>Comments:</h1>
<%= turbo_stream_from post %>
<%= turbo_frame_tag post do %>
<div id="<%= dom_id(post) %>">
<% post.comments.includes(:user).each do |comment| %>
<%= render comment %>
<% end %>
</div>
<% end %>
In Comment#create action I have:
post = Post.find(params[:post_id])
#comment = post.comments.new(comment_params)
#comment.user_id = current_user.id
respond_to do |format|
if #comment.save
format.turbo_stream { render turbo_stream: turbo_stream.prepend("post_#{post.id}", partial: "comments/comment", locals: { comment: #comment }) }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: #comment.errors, status: :unprocessable_entity }
end
end
In Comment model I have:
after_create_commit {
broadcast_prepend_to(target: "post_#{self.post.id}")
}
And in terminal I can see
[ActionCable] Broadcasting to : "<turbo-stream action=\"prepend\" target=\"post_6\"><template> <div>\n <p>\n <strong>Title:</strong>\n adsd\n </p>\n\n <p>\n <strong>Content:</strong>\n Asda\n </p>\n\n <p>\n <strong>User:</strong>\n Super Saiyan Vegeta\n </p>\n </div>\n\n <hr/>\...
Which is correct, but the comments list in a specific post still not updating, and I do see I have id="post_6" in the view...can someone tell me why? Thanks.
Try to change
<div id="<%= dom_id(post) %>">
to
<div id="post_<%= post.id %>">
And use such method in controller
if #comment.save
#comment.broadcast_prepend_to to post, target: "post_#{post.id}", partial: "comments/comment", locals: { comment: #comment }
end
instead of broadcast from model
Related
I am trying to build a Q&A app with Ajax on the Index.html.erb. I manage to get the form remotely loading, but when saving the records, the AJAX does not work and the user is taken to the normal show.html.erb. Apart from the Ajax not kicking off, everything works well.
My code is as below:
index.html.erb (Contain a partial for input, and a partial for results)
<div>
<h3 class="section_title"> Q&A </h3>
<hr>
<div id="qanda-form" style="display:none;"> </div>
</div>
<div id="qandas">
<%= render 'qandas/qanda' %>
</div>
_qanda.html.erb (is the partial for results)
<% #qandas.each do |my_qanda| %>
<div class="col-md-9">
<div>
Created <%= local_time(my_qanda.created_at) %>, by <%= User.find_by(id: my_qanda.user_id).full_name %>
</div>
</div>
<% end %>
_form.html.erb (is the input form - has nested form via Cocoon)
<%= simple_form_for #qanda, remote: true do |f| %>
<%= f.error_notification %>
<%= f.error_notification message: f.object.errors[:base].to_sentence if f.object.errors[:base].present? %>
<div class="col-md-12 form-inputs">
<div class="col-md-8">
<%= f.input :title, label: 'Q&A Title:' %>
</div>
</div>
<div class="qandasquestions">
<%= f.simple_fields_for :qandasquestions do |builder| %>
<% render 'qandas/qandasquestion_fields', f: builder %>
<% end %>
<div class="links btn-group" style="min-height: 34px !important">
<%= f.button :submit, "Publish Q&A", class: "btn btn-default" %>
<%= link_to_add_association 'Add Question', f, :qandasquestions, class: 'btn btn-default', data: {association_insertion_node: '.qandasquestions', association_insertion_method: :append} %>
<%= link_to 'Back', qandas_path, class: "btn btn-default" %>
<%= f.input :company, :as => :hidden, :input_html => {:value => current_user.company} %>
</div>
</div>
<% end %>
Controller:
def index
#qandas = Qanda.all
respond_to do |format|
#qandas = Qanda.all
format.html
format.json
end
end
def create
#qanda = current_user.qandas.build(qanda_params)
respond_to do |format|
if #qanda.save!
#qandas = Qanda.all
format.html { redirect_to #qanda, notice: 'Qanda was successfully created.' }
format.json {render :layout => false}
else
format.html { render :new }
format.json { render json: #qanda.errors, status: :unprocessable_entity }
end
end
end
create.js.erb
$('#qandas').html("<%= j render partial: 'qandas/qanda' %>");
$('#qanda-form').slideUp(350);
new.js.erb
$('#qanda-form').html("<%= j render 'qandas/form' %>");
$('#qanda-form').slideDown(350);
Anybody can see why the Ajax does not kick off please? why am I redirected to the traditional SHOW page please?
Try updating your code to this and let me know if it's working?
def create
#qanda = current_user.qandas.build(qanda_params)
if #qanda.save!
#qandas = Qanda.all
else
#errors = #qanda.errors
end
end
I have a products and categories controllers, when I create a new product, the :category_id is passed as "/". And I cannot figure out why. Routes.rb is fine, models are standard, and controller#create is ok (posted below). What could be wrong?
def new
#product = Product.new
end
def create
#product = Product.new(product_params)
#product.category_id = params[:category_id]
respond_to do |format|
if #product.save
format.html { redirect_to category_products_path(#category), notice: 'P$
format.json { render :show, status: :created, location: #product }
else
format.html { render :new }
format.json { render json: #product.errors, status: :unprocessable_enti$
end
end
end
_form.html.erb
<%= form_for [#category, #product], url: category_products_path([#category, #product]) do |form| %>
<% if product.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(product.errors.count, "error") %> prohibited this product from being saved:</h2>
<ul>
<% product.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= form.label :name %>
<%= form.text_field :name %>
</div>
<div class="actions">
<%= form.submit %>
</div>
<% end %>
rake routes:
category_products GET /categories/:category_id/products(.:format) products#index
POST /categories/:category_id/products(.:format) products#create
new_category_product GET /categories/:category_id/products/new(.:format) products#new
edit_category_product GET /categories/:category_id/products/:id/edit(.:format) products#edit
category_product GET /categories/:category_id/products/:id(.:format) products#show
PATCH /categories/:category_id/products/:id(.:format) products#update
PUT /categories/:category_id/products/:id(.:format) products#update
DELETE /categories/:category_id/products/:id(.:format) products#destroy
category_products_path([#category, Product.new]) #=> "categories/1%2f/products"
Where %2f code of /. [#category, Product.new] is an array and passes as a single parameter.
<%= form_for [#category, #product], url: category_products_path(#category, #product) do |form| %>
<% end %>
<%= form_for [#category, #product], url: category_products_path(#category) do |form| %>
<% end %>
<%= form_for [#category, #product], url: category_products_path(#category.id) do |form| %>
<% end %>
<%= form_for [#category, #product], url: category_products_path(category_id: #category.id) do |form| %>
<% end %>
Each would work.
Also, before redirect_to category_products_path(#category) #category not seted. So, change current path to:
redirect_to category_products_path(#product.category_id)
And update your action new:
def new
#category = Category.find_by(id: params[:category_id])
#product = Product.new
end
<%= form_for Product.new, url: category_products_path(params[:category_id]) do |form| %>
<% if product.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(product.errors.count, "error") %> prohibited this product from being saved:</h2>
<ul>
<% product.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= form.label :name %>
<%= form.text_field :name %>
</div>
<div class="actions">
<%= form.submit %>
</div>
<% end %>
Controller: -
def create
#product = Product.new(product_params)
#product.category_id = params[:category_id]
respond_to do |format|
if #product.save
format.html { redirect_to category_products_path(#product.category), notice: 'P$
format.json { render :show, status: :created, location: #product }
else
format.html { render :new }
format.json { render json: #product.errors, status: :unprocessable_enti$
end
end
end
Suppose I have defined my create action like this:
def create
#appointment = Appointment.find(params[:appointment_id])
#note = #appointment.notes.new(notes_params)
#note.user_id = current_user.id
respond_to do |format|
if #note.save
format.html { redirect_to appointment_path(#appointment), notice: "Saved successfully" }
format.js
else
format.html { render 'new', notice: "Try again" }
format.js
end
end
end
My create.js.erb is like this:
$("#note_field").html("<%= j render partial: 'note', locals: {note: #note} %>");
Here is my form:
<%= form_for([#appointment, #appointment.notes.build({user: current_user})], remote: true) do |f| %>
<div>
<% if #note && #note.errors.any? %>
<% #note.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
<% end %>
</div>
<div class="field">
<%= f.label :Description %><br>
<%= f.text_area :description, required: true %>
</div>
<div>
<%= f.submit class: "note-button" %>
</div>
<% end %>
Here, note is partial form. How to make it work without a page refresh?
I am fairly new to Rails 4, and I am creating a Q&A site similar to Stack Overflow.
I have a question page much like the one on Stack Overflow. The question part is working, and then I have answers, which are working too, HOWEVER, I want to be able to have the answerer's name next to their answer.
I am pretty sure I have the controller, model and view set up properly. I have reset the database but it still comes up with errors.
Here's my code:
#Answers_controller.rb create action
def create
#answer = #question.answers.new(answer_params)
#answer.user_id = current_user.username
respond_to do |format|
if #answer.save
format.html { redirect_to [#question], notice: 'Answer was successfully created.' }
format.json { render action: 'show', status: :created, location: #answer }
else
format.html { render action: 'new' }
format.json { render json: #answer.errors, status: :unprocessable_entity }
end
end
end
answer.rb (model):
class Answer < ActiveRecord::Base
belongs_to :user
belongs_to :question
validates :body, presence: true
end
#Then in user.rb I have has_many :answers, has_many :questions
#Also in question.rb has_many :answers
answers/_answer.html.erb:
<%= answer.username %>
<%= answer.body %>
</p>
<p>
<% if current_user.present? && current_user == answer.user %>
<%= link_to 'Delete Answer', [answer.question, answer],
method: :delete,
data: { confirm: 'Are you sure?' } %>
<% end %>
</p>
Then in questions/show:
<div class="container">
<div class="row">
<div class="span8">
<h3><%= #question.title %>
<% if current_user.present? && current_user == #question.user %>
<%= link_to 'Edit', edit_question_path(#question) %></h3>
<% end %>
<hr>
</div>
</div>
<div class="row">
<div class="span8">
<p><%= #question.description %></p>
Asked by <%= #question.user.full_name %>
<hr>
</div>
</div>
<%= render "answers/form" %>
<%= render #question.answers %>
</div>
<script type="text/javascript">
$(document).ready(function(){
$('.wysihtml5').each(function(i, elem) {
$(elem).wysihtml5();
});
})
</script>
It looks like you wrong here
#answer = #question.answers.new(answer_params)
try
#answer = #question.answers.build(answer_params)
Explanaition: you build a new answer but do not refer it to question because according to has_many documentation it has collection.build(attributes = {}, …) not collection.new(attributes).
A couple of things that stand out:
#Answers_controller.rb create action
def create
#answer = #question.answers.new(answer_params)
#answer.user_id = current_user.username # ???? should be current_user.id ????
# omitted
end
answers/_answer.html.erb
<%= answer.username %> # ???? you have no username field on your answer model ???
# ??? should be <%= answer.user.username %> ???
<%= answer.body %>
</p>
# omitted
All my code is working nicely, I want to render the same page :new after a user submits a form with your order. The problem is about the :notice message that I want to display Pedido enviado com sucesso. in the page after a submission but it doesn't work. My validation error messages are displayed nicely but I don't know why my success message doesn't.
Any tips?
(Sorry about my code indentation)
My pedidos_controller goes down:
class PedidosController < ApplicationController
def new
#pedido = Pedido.new
1.times do
pessoa = #pedido.build_pessoa
produto = #pedido.produtos.build
end
respond_to do |format|
format.html # new.html.erb
format.json { render json: #pedido }
end
end
def create
#pedido = Pedido.new(params[:pedido])
respond_to do |format|
if #pedido.save
PedidosMailer.delay.registro_do_pedido(#pedido)
PedidosMailer.delay.email_para_cotar_produtos(#pedido)
format.html { redirect_to action: "new", notice: 'Pedido enviado com sucesso.' }
format.json { render json: #pedido, status: :created, location: #pedido }
else
format.html { render action: "new" }
format.json { render json: #pedido.errors, status: :unprocessable_entity }
end
end
end
end
my new.html.erb view:
<p id="notice"><%= notice %></p>
<%= render 'form' %>
my _form.html.erb view:
<%= form_for(#pedido, :html => { :class => "form-contato"}) do |f| %>
<% if #pedido.errors.any? %>
<div id="error_explanation">
<h2>Ocorreram <%= pluralize(#pedido.errors.count, "erro") %></h2>
<ul>
<% #pedido.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="row">
<div class="span4">
<h1>Dados pessoais</h1>
<%= f.fields_for :pessoa do |builder| %>
<%= render 'pessoa_fields', f: builder %>
<% end %>
</div>
<div class="span8">
<h1>Ítens</h1>
<%= f.fields_for :produtos do |builder| %>
<%= render 'produto_fields', f: builder %>
<% end %>
</div>
<div class="span10">
<%= link_to_add_fields "Adicionar mais produtos", f, :produtos %>
</div>
<%= button_tag "Enviar", class: "btn btn-red span10", name: "commit" %>
</div>
<% end %>
my _pessoa_fields.html.erb view:
<fieldset>
<%= f.text_field :nome, class: "span4", placeholder: "Nome" %>
<br />
<%= f.text_field :telefone, class: "span4", placeholder: "Telefone" %>
<br />
<%= f.text_field :email, class: "span4", placeholder: "Email" %>
</fieldset>
my _produto_fields.html.erb view:
<% #lista_de_produtos = ["Qualibom standard", "Qualibom premium", "Bomdemais standard", "Bomdemais premium"] %>
<fieldset class="campos-produtos span10">
<div class="span3">
<%= f.select :nome, options_for_select(#lista_de_produtos, :selected => f.object.nome), :prompt => 'Selecione um produto' %>
</div>
<div class="span3">
<%= f.text_field :quantidade, class: "span3", placeholder: "Quantidade" %>
</div>
</fieldset>
You need to use flash[:notice], not notice, in your view:
<% if flash[:notice] %>
<p id="notice"><%= flash[:notice] %></p>
<% end %>
When you pass a message via the notice: parameter of redirect_to, it's placed into the flash array, which is a special pseduo-session which persist for a single request:
From the ActionController::Redirecting documentation:
It is also possible to assign a flash message as part of the redirection. There are two special accessors for the commonly used flash names alert and notice as well as a general purpose flash bucket.