Embedding form partial in unconventional view - ruby-on-rails

Question

I have rendered the regular scaffold form partial for a task model in my user show view. My thinking been so the user can post and see the post on the same page. I defined a task in the user show action like so
def show
#user = User.find(params[:id])
#task = current_user.tasks.new
respond_to do |format|
format.html # show.html.erb
format.json { render json: #user }
end
end
And it does create the post but it does not show them. Any ideas as to why that is ?
Show page
#_form
<%= form_for(#task) do |f| %>
<% if #task.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#task.errors.count, "error") %> prohibited this task from being saved:</h2>
<ul>
<% #task.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :description %><br />
<%= f.text_field :description %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
#_form
#index page
<% current_user.tasks.each do |task| %>
<%= task.description %>
<% end %>

Answer 1

This is weird because you find a #user, but you use current_user to create a new task instance for your form:
#user = User.find(params[:id])
#task = current_user.tasks.new
I assume current_user already found the user model according to a cookie, session or token so you probably do not need #user in your show action.
With that aside, if you're concerned with the view not displaying the list of the current_user's tasks, then you'll need to make sure the view has the proper markup, hence you should show us what your view currently looks like as well. Here's what I'm assuming you're trying to do:
class UsersController < ApplicationController
def show
#task = current_user.tasks.new
respond_to do |format|
format.html
format.json { render json: current_user }
end
end
end
class TasksController < ApplicationController
def create
#task = current_user.tasks.new params[:task]
if #task.save
# Send a new request to users#show
redirect_to current_user
else
# No request will be sent to users#show and the template will just get
# rendered with #task containing the same values from the initial request
# with form input
render 'users/show'
end
end
end
# app/views/users/show.html.erb
<ul><%= render current_user.tasks %></ul>
<%= form_for #task do |f| %>
<%= f.text_field :name %>
<%= f.submit %>
<% end %>
# app/views/tasks/_task.html.erb
<li><%= task.name %></li>