This is from Railstutorial.org, starting in chapter 7.
I've been banging my head on this one, so if its a simple typo I apologize.
I'm trying to get just the flash message to render, but for some reason I'm seeing the flash and also the hash that produces it showing up on my page. Here's my code (relevant code is lines 12-15).
1 <!DOCTYPE html>$
2 <html>$
3 <head>$
4 <title><%= full_title(yield(:title)) %></title>$
5 <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>$
6 <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>$
7 <%= csrf_meta_tags %>$
8 <%= render 'layouts/shim' %>$
9 </head>$
10 <body>$
11 <%= render 'layouts/header' %>$
12 <div class="container">$
13 <%= flash.each do |message_type, message| %>$
14 <%= content_tag(:div, message, class: "alert alert-#{message_type}") %> $
15 <% end %>$
16 <%= yield %>$
17 <%= render 'layouts/footer' %>$
18 <%= debug(params) if Rails.env.development? %>$
19 </div>$
20 </body>$
21 </html>$
Figured this out... <%= flash.each do |message_type, message| %> is rendering visibly. Took out the '=' above and it fixed things.
Related
I know about partial in rails, but it seems that I can only re-use exactly the same form with partial.
What if I have two forms that differ only in one field? For example, in my classroom app, I have one form for a peer-grader and one form for a teacher-grader.
The teacher's form is as follows. The peer-grader form is exactly the same, minus the grade field. How do I DRY this?
<%= form_for #doc,
url: student_homework_document_path(student_id: #doc.submitter_id,
id: #doc.id),
html: { multipart: true } do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<%= f.label :grade %>
<%= f.number_field :grade %>
<%= f.label :graded_file %>
<%= f.file_field :graded_file %>
<%= f.label :graded_file_source_code %>
<%= f.file_field :graded_file_source_code %>
<%= f.submit "Submit grading", class: "btn btn-large" %>
<% end %>
I would have thought you had one controller called teachers and one called peers or something. You could keep the form the same but add a variable to the peer-grader method such as #peer_grader = true. Then in your form add:
<% if #peer_grader = true %>
<%= f.label :grade %>
<%= f.number_field :grade %>
<% end %>
You would also need to set another variable called #url in both controllers set to the correct path and then update the form to:
<%= form_for #doc, url: #url, html: { multipart: true } do |f| %>
I'm trying to follow along with a tutorial. I am using the same methods as a Blog Post and Blog Comment type tutorial, just trying something a little different. I keep getting an error:
undefined method `to_key' for #(had to remove the first <)Agentinteraction::ActiveRecord_Relation:0x007fa4d43ca138>
With the errors highlighted as: NoMethodError in Agents#show
<% form_for #qrreviews, :url => create_qrreview_agents_path do |f| %>
Routes:
resources :agents do
collection do
post 'create_qrreview', to: 'agents#create_qrreview'
end
end
Agents Show Action:
def show
#qrreviews = Agentinteraction.where("agent_id = ?", #agent.id)
#agentinteraction = Agentinteraction.new
end
show.html.erb
<p id="notice"><%= notice %></p>
<%= #agent.name %>
<%= #agent.email %>
<%= #agent.team %>
<%= link_to 'Edit', edit_agent_path(#agent) %> |
<%= link_to 'Back', agents_path %>
QR Feedback:<br/><br/>
<%#= #comments.blog %>
<% #qrreviews.each do |qrreview| %>
<%= qrreview.agent_id %><br>
<%= qrreview.yes_or_no %><br>
<% end %>
<br/><br/>
<% form_for #qrreviews, :url => create_qrreview_agents_path do |f| %>
Category:
Interaction:
Act One Score:
Act Two Score:
Act Three Score:
Type of Interaction:
Training Needed?
Type of Training Needed?
<%= f.submit %>
<% end %>
undefined method `to_key' for Agentinteraction::ActiveRecord_Relation:0x007fa4d43ca138
The problem is you have define #qrreviews = Agentinteraction.where("agent_id = ?", #agent.id) which returns a AR_Relation.
Try changing
#qrreviews = Agentinteraction.where("agent_id = ?", #agent.id)
to
#qrreviews = Agentinteraction.where("agent_id = ?", #agent.id).first
Also
<% form_for #qrreviews, :url => create_qrreview_agents_path do |f| %>
should be
<%= form_for #qrreviews, :url => create_qrreview_agents_path do |f| %>
I need a simple_form that has options 1-10. I was trying the following:
<%= f.collection_radio_buttons :cost, [1..10] %>
Suppose this would work as well.
<%= f.input :cost, collection: (1..10), as: :radio_buttons, boolean_style: :inline %>
So easy:
<%= f.input :cost, collection: [1,2,3,4,5,6,7,8,9,10], as: :radio_buttons, boolean_style: :inline %>
I've been stuck on this problem for a couple of days now.
I've have some success with Railscasts Episode #198, but that one is for Rails 2. There have been some changes in Rails 3 that make it so the code provided in Episode #198 won't work.
The problem lies within the edit_individual.html.erb:
Original Code (provided by Ryan # Railscasts):
<% form_tag update_individual_products_path, :method => :put do %>
<% for product in #products %>
<% fields_for "products[]", product do |f| %>
<h2><%=h product.name %></h2>
<%= render "fields", :f => f %>
<% end %>
<% end %>
<p><%= submit_tag "Submit" %></p>
<% end %>
Modified Code (simply changed fields_for to form_for):
<% form_tag update_individual_products_path, :method => :put do %>
<% for product in #products %>
<% form_for "products[]", product do |f| %>
<h2><%=h product.name %></h2>
<%= render "fields", :f => f %>
<% end %>
<% end %>
<p><%= submit_tag "Submit" %></p>
<% end %>
In the new code, each record is placed within a form of their own, all inside one single form (which is the one I only want).
My question is, how can I get the code provided by Railscasts Episode #198 to work in Rails 3?
Here is a link to the Railscast I mentioned:
http://railscasts.com/episodes/198-edit-multiple-individually
Thank You,
c.allen.rosario
I found the solution. Just need to modify the following line in the code provided by Ryan # Railscasts:
<% fields_for "products[]", product do |f| %>
and change it to:
<%= fields_for "products[]", product do |f| %>
Notice, that the <% has been modified to <%=.
final solution:
<% form_tag update_individual_products_path :method => :put do %>
<% for product in #products %>
<%= fields_for "products[]", product do |f| %>
<h2><%= h product.name %></h2>
<% end %>
<% end %>
<p><%= submit_tag "Submit" %></p>
<% end %>
I was wondering if anyone could explain this solution to me. From what I understand you should only need a <% in front of the fields_for.
c.allen.rosario
The change in Rails 3 from <% fields_for to <%= fields_for is because it was confusing that form_for, form_tag, etc... were using <% form... %> even though they they were outputting html code.
With Rails 3, since they output html code, they use <%=.
Please note that your first line is deprecated:
<% form_tag update_individual_products_path, :method => :put do %>
should be
<%= form_tag update_individual_products_path, :method => :put do %>
Same for all form tags.
Hi I have any form with nested form, for example
<% form_for :main do |f| %>
trying to insert code here
<% fields_for :nested do |nested_form| %>
<%= nested_form.text_field :description %>
<% end %>
<% end %>
And then I am trying to insert anything to a main form, nested form doesn't produce any output. It outputs only when it is the only object in main form. Any suggestions?
From the Rails 3 documentation examples you need to write your form_for like this:
<%= form_for :main do |f| %>
# trying to insert code here
<%= fields_for :nested do |nested_form| %>
<%= nested_form.text_field :description %>
<% end %>
<% end %>
Note the <%= for both form_for and fields_for