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| %>
Related
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 have a long list dropdown menu including all currencies, i want the last selected value to be the default selected value in the list.
i am using Rails 4.0.0 and ruby 2.0.0
i am not using a model, i am just using a controller. i have put the dropdown list options inside a helper.
form.html.erb
<div class="calculator">
<%= form_for :convertor, :url => {:controller => "converter", :action => "show" } do |f| %>
<%= f.label :from_currency %>
<%= f.select :from_currency, options_for_select(currencies, :selected => params[:from_currency]) %>
<%= f.text_field :amount, :placeholder => "Amount", id: "textfield" %>
<%= #amount %>
<br>
<%= f.label :to_currency %>
<%= f.select :to_currency, options_for_select(currencies, :selected => params[:to_currency].to_i ) %>
<%= #result %>
<br>
<%= f.submit "Calculate", class: "btn btn-large btn-primary", id: "submitButton" %>
<% end %>
</div>
the list options are loaded from a helper *<%= f.select :to_currency, options_for_select(currencies, :selected => params[:to_currency].to_i ) %>* with name currencies
the dropdown list, in a helper
def currencies
[
['United Arab Emirates Dirham (AED)', 'AED'],
['Netherlands Antillean Guilder (ANG)', 'ANG'],
['Argentine Peso (ARS)', 'ARS'],
['Australian Dollar (A$)', 'AUD'],
['Bangladeshi Taka (BDT)', 'BDT'],
['Bulgarian Lev (BGN)', 'BGN'],
['Bahraini Dinar (BHD)', 'BHD'],
]
end
what am i doing wrong here?
A couple of things:
options_for_select takes two arguments: the list of options and the value that you want selected.
You're passing through the value as a hash: :selected => params...
The parameter name is wrong.
In your controller, you're saying that the parameter is called this:
params[:convertor][:from_currency]
But in your view, you have params[:from_currency].
Therefore, the solution to this is to do this:
<%= f.select :from_currency, options_for_select(currencies, params[:convertor][:from_currency]) %>
This code works for me.
in application helper
module ApplicationHelper
def opts_for_select_cur
opts_for_select = [
['United Arab Emirates Dirham (AED)', 'AED'],
['Netherlands Antillean Guilder (ANG)', 'ANG'],
['Argentine Peso (ARS)', 'ARS'],
['Australian Dollar (A$)', 'AUD'],
['Bangladeshi Taka (BDT)', 'BDT'],
['Bulgarian Lev (BGN)', 'BGN'],
['Bahraini Dinar (BHD)', 'BHD'],
]
return opts_for_select
end
end
and in view
<script type="text/javascript">
$(document).ready(function(){
$('#st').change(function(){
var inputText = $('#st :selected').val();
$("#hidden_one").val(inputText);
$("a").attr("href", "?value="+inputText );
});
$('#aa').click(function(){
var inputText = $('#st :selected').val();
$("a").attr("href", "?value="+inputText );
});
});
<%= f.select :text, options_for_select(opts_for_select_cur, params[:value]), {}, { id: "st" } %>
<br>
<%= link_to "refresh",nil, id: "aa" %>
the result is a select box with selected value.
this can help
<%= f.label :from_currency %>
<% if #from_cur.present? %>
<%= f.select :from_currency, options_for_select(currencies, #from_cur) %>
<% else %>
<%= f.select :from_currency, options_for_select(currencies), :required => true %>
<% end %>
<%= f.text_field :amount, :placeholder => "Amount", :required => true, id: "textfield" %>
<br>
<%= f.label :to_currency %>
<% if #from_cur.present? %>
<%= f.select :to_currency, options_for_select(currencies, #to_cur), :required => true %>
<% else %>
<%= f.select :to_currency, options_for_select(currencies), :required => true %>
<% end %>
i appreciate.
I've been working on integrating Stripe into my web application, and it doesn't seem to be working. To help me along, I've been using Ryan Bates's Rails Cast on integrating Stripe. Whenever I try to run the payment form, I get an error saying that "There was a problem with my credit card". I think the problem lies in my coffeescript file, but perhaps I'm wrong. I've included the stripe user token as a part of my user model instead of placing it into its own subscription model. Here is the coffeescript code I have:
jQuery ->
Stripe.setPublishableKey($('meta[name="stripe-key"]').attr('content'))
subscription.setupForm()
user =
setupForm: ->
$('#new_user').submit ->
$('input[type=submit]').attr('disabled', true)
if $('#card_number').length
user.processCard()
false
else
true
processCard: ->
card =
number: $('#card_number').val()
cvc: $('#card_code').val()
expMonth: $('#card_month').val()
expYear: $('#card_year').val()
Stripe.createToken(card, user.handleStripeResponse)
handleStripeResponse: (status, response) ->
if status == 500
$('#user_stripe_card_token').val(response.id)
$('#new_user')[0].submit()
else
$('#stripe_error').text(response.error.message)
$('input[type=submit]').attr('disabled', false)
I'm a beginner when it comes to programming, so any help you can give me would be great.
Here's the error I get in my terminal when I try to sign up:
Parameters: {"utf8"=>"✓", "authenticity_token"=>"Xas+iA+a3op7jUi57qTr7XWQSClPscA7fR19rkclkEE=", "user"=>{"stripe_card_token"=>"", "name"=>"Jack", "email"=>"email#example.com", "phone_number"=>"203-xxx-xxxx", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}, "commit"=>"Create my account"}
User Exists (0.2ms) SELECT 1 AS one FROM "users" WHERE LOWER("users"."email") = LOWER('jjets718#yahoo.com') LIMIT 1
Stripe error while creating customer: Invalid token id:
My view for the signup is this:
<% provide(:title, 'Sign up') %>
<h1>Sign up</h1>
<div class="row">
<div class="span6 offset3">
<%= form_for(#user) do |f| %>
<%= render 'shared/error_messages' %>
<%= f.hidden_field :stripe_card_token %>
<%= f.label :name %>
<%= f.text_field :name %>
<%= f.label :email %>
<%= f.text_field :email %>
<%= f.label :phone_number, "Your cell phone number" %>
<%= f.text_field :phone_number %>
<%= f.label :password %>
<%= f.password_field :password %>
<%= f.label :password_confirmation, "Password confirmation" %>
<%= f.password_field :password_confirmation %>
<%= label_tag :card_number, "Credit Card Number" %>
<%= text_field_tag :card_number, nil, name: nil %>
<%= label_tag :card_code, "Security Code on Card (CVV)" %>
<%= text_field_tag :card_code, nil, name: nil %>
<%= label_tag :card_month, "Card Expiration" %>
<%= select_month nil, {add_month_numbers: true}, {name: nil, id: "card_month"}%>
<%= select_year nil, {start_year: Date.today.year, end_year: Date.today.year+15}, {name: nil, id: "card_year"} %>
<%= f.submit "Create my account", class: "btn btn-large btn-primary" %>
<% end %>
</div>
</div>
<div id="stripe_error">
<noscript>JavaScript is not enabled and is required for this form. First enable it in your web browser settings.</noscript>
</div>
My code for my controller is this for the create method:
def create
#user = User.new(params[:user])
if #user.save_with_payment
sign_in #user
flash[:success] = "Welcome to the Sample App!"
redirect_to edit_user_path(current_user)
UserMailer.welcome_email(#user).deliver
else
render 'new'
end
end
My code for the database migration for the user token is this:
class AddStripeToUsers < ActiveRecord::Migration
def change
add_column :users, :stripe_customer_token, :string
end
end
And the code for the save_with_payment method in my model is this:
def save_with_payment
if valid?
customer = Stripe::Customer.create(description: email, plan: 1, card: stripe_card_token)
self.stripe_customer_token = customer.id
save!
end
rescue Stripe::InvalidRequestError => e
logger.error "Stripe error while creating customer: #{e.message}"
errors.add :base, "There was a problem with your credit card."
false
end
2 things that come to mind:
You should be doing a status check for 200, not 500
You may need to require the coffeescript file in your application.js
e.g. //= require users
I could be wrong, but at this point:
handleStripeResponse: (status, response) ->
if status == 500
$('#user_stripe_card_token').val(response.id)
In addition to changing if status == 500 to if status == 200, this line $('#user_stripe_card_token').val(response.id) may need to be $('#new_user_stripe_card_token').val(response.id). Make sure to check the input ID.
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