Im attempting to create a Rails app that manages temperatures for a garden. I have setup my controllers and models appropriately to have resources for Grow - Tray - Plant.
Grow has many trays
Tray has many Plants
Im able to create nested trays in each grow. But I am not able to create plants in a designated tray.
The github repo
Im getting the following error:
undefined method `tray'
This is for my plant _form
<%= form_for([#grow, #grow.tray.plants.build]) do |f| %>
<div class="field">
<%= f.label :title %><br>
<%= f.text_field :title %>
</div>
<div class="field">
<%= f.label :description %><br>
<%= f.text_area :description %>
</div>
<div class="field">
<%= f.label :tray_id %><br>
<%= f.text_field :tray_id %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
The routes look as such:
resources :grows do
resources :trays do
resources :plants
end
end
The form for building the tray looks like this and it works:
<%= form_for([#grow, #grow.trays.build]) do |f| %>
<div class="field">
<%= f.label :title %><br>
<%= f.text_field :title %>
</div>
<div class="field">
<%= f.label :description %><br>
<%= f.text_area :description %>
</div>
<div class="field">
<%= f.label :grow_id %><br>
<%= f.text_field :grow_id %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
Is this even the right approach?
If Grow has_many trays, then #grow.tray would be undefined (note the singular).
Perhaps you should assign the relevant Tray in the controller, so it can be referenced in the view appropriately:
#tray = #grow.trays.find(...)
I'd also recommend avoiding nesting routes more than two levels. Forms like these tend to be more difficult to manage with multiple nesting.
Related
I am developing a simple account registration and update form and I have recently entered a parameter that can have two possible choices, in my case one problem occurred:
Problem:
<div class="tag">
<%= f.label :ruolo %><br />
<%= f.radio_button_tag(:ruolo, "admin") %>
<%= f.label_tag(:ruolo_admin, "admin") %>
<%= f.radio_button_tag(:ruolo, "user") %>
<%= f.label_tag(:ruolo_user, "user") %>
</div>
if I leave the code like this it gives me an error like:
NoMethodError in Devise::Registrations#edit
undefined method `radio_button_tag 'for # <ActionView :: Helpers :: FormBuilder: 0x00007fd6fd02f478>
this is the form:
<div class="row">
<div class="col s12 l6 offset-l3">
<br>
<br>
<h4 class="center">Registrazione</h4>
<br>
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name, autofocus: true %>
</div>
<div class="field">
<%= f.label :email %><br />
<%= f.email_field :email %>
</div>
<div class="field">
<%= f.label :ruolo %><br />
<%= f.radio_button_tag(:ruolo, "admin") %>
<%= f.label_tag(:ruolo_admin, "admin") %>
<%= f.radio_button_tag(:ruolo, "user") %>
<%= f.label_tag(:ruolo_user, "user") %>
</div>
<div class="field">
<%= f.label :password %>
<% if #minimum_password_length %>
<em>(<%= #minimum_password_length %> characters minimum)</em>
<% end %><br />
<%= f.password_field :password, autocomplete: "off" %>
</div>
<div class="field">
<%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation, autocomplete: "off" %>
</div>
<br>
<div class="actions">
<%= f.submit "Iscriviti", class: "waves-effect waves-light btn btn-devise" %>
</div>
<br>
<% end %>
<%= render "devise/shared/links" %>
</div>
</div>
Controller code:
class ApplicationController < ActionController::Base
before_action :configure_permitted_parameters, if: :devise_controller?
protected
def configure_permitted_parameters
#roles=Role.all
devise_parameter_sanitizer.permit(:sign_up, keys: [:name,:ruolo])
devise_parameter_sanitizer.permit(:account_update, keys: [:name,:ruolo])
end
end
radio_button_tag is not an instance method of ActionView :: Helpers :: FormBuilder, but rather ActionView::Helpers::FormTagHelper
So instead of calling it like:
<%= f.radio_button_tag(:ruolo, "admin") %>
You simply call it like:
<%= radio_button_tag(:ruolo, "admin") %>
For more details on this method please check the docs:
https://apidock.com/rails/v6.0.0/ActionView/Helpers/FormTagHelper/radio_button_tag
In my application I have created a contact form in the footer of the page and hence it's been placed within the application layout. I have also set up Koudoku to manage my stripe payments on the site.
Via the Koudoku documentation it says since Koudoku uses the application layout all paths must be prefixed with main_app.
This has been implemented for all the links already, however the contact form is using a instance variable declared in the application controller like this.
def set_contact
#contact = Contact.new
end
and the form in the application view looks like this
<%= form_for #contact do |f| %>
<div class="form-group">
<%= f.label :name %>
<%= f.text_field :name, class: 'form-control' %>
</div>
<div class="form-group">
<%= f.label :email %>
<%= f.email_field :email, class: 'form-control' %>
</div>
<div class="form-group">
<%= f.label :comments %>
<%= f.text_area :comments, class: 'form-control' %>
</div>
<%= f.submit 'Submit', class: 'btn btn-default' %>
<% end %>
I am getting this error here
undefined method `contacts_path' for #<#<Class:0x007f8b4d6bb658>:0x007f8b5033fc88>
In the ERB for scaffold generators in Rails 4.2 from where do the variables / methods come from in the template?
Things like singular_table_name and attributes in the below '_form.html.erb' template. Are they methods? variables? where can I find a list of what is available for use in this template?
I tried using some ActiveRecord class methods for example (reflections) and they were not available.
If it is only a set list of methods, not drawn from the AR class, is there a way to pass instance variables from the generators like you would from a controller to a view?
Originally from .rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/generators/erb/scaffold/templates/_form.html.erb
I now placed this file (which works) in rails_app/lib/templates/erb/scaffold
<%%= form_for(#<%= singular_table_name %>) do |f| %>
<%% if #<%= singular_table_name %>.errors.any? %>
<div id="error_explanation">
<h2><%%= pluralize(#<%= singular_table_name %>.errors.count, "error") %> prohibited this <%= singular_table_name %> from being saved:</h2>
<ul>
<%% #<%= singular_table_name %>.errors.full_messages.each do |message| %>
<li><%%= message %></li>
<%% end %>
</ul>
</div>
<%% end %>
<% attributes.each do |attribute| -%>
<div class="field">
<% if attribute.password_digest? -%>
<%%= f.label :password %><br>
<%%= f.password_field :password %>
</div>
<div class="field">
<%%= f.label :password_confirmation %><br>
<%%= f.password_field :password_confirmation %>
<% else -%>
<%%= f.label :<%= attribute.column_name %> %><br>
<%%= f.<%= attribute.field_type %> :<%= attribute.column_name %> %>
<% end -%>
</div>
<% end -%>
<div class="actions">
<%%= f.submit %>
</div>
<%% end %>
I'm trying to use paperclip with rails 3.1 but I keep getting this routing error.
No route matches {:action=>"show", :controller=>"users"}
I followed the instructions at thoughtbot/paperclip on github.
<%= form_for :user, #user, :url => user_path, :html => { :multipart => true } do |f| %>
<% if #user.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#user.errors.count, "error") %> prohibited this user from being saved:</h2>
<ul>
<% #user.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :FirstName %><br />
<%= f.text_field :FirstName %>
</div>
<div>
<%= f.label :avatar%>
<%= f.file_field :avatar %>
</div>
<div class="field">
<%= f.label :LastName %><br />
<%= f.text_field :LastName %>
</div>
<div class="field">
<%= f.label :Email %><br />
<%= f.text_field :Email %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
User.rb
class User < ActiveRecord::Base
has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }
end
routes.rb
City::Application.routes.draw do
resources :users
end
show.html.erb
<p id="notice">
<%= notice %>
</p>
<p>
<b>Firstname:</b>
<%= #user.FirstName %>
</p>
<p>
<b>Lastname:</b>
<%= #user.LastName %>
</p>
<p>
<b>Email:</b>
<%= #user.Email %>
</p>
<p>
<b>Avatar</b>
<%= image_tag #user.avatar.url %>
<%= image_tag #user.avatar.url(:medium) %>
<%= image_tag #user.avatar.url(:thumb) %>
</p>
<%= link_to 'Edit', edit_user_path(#user) %> |
<%= link_to 'Back', users_path %>
!UPDATE!
$ rake routes
events GET /events(.:format) {:action=>"index", :controller=>"events"}
POST /events(.:format) {:action=>"create", :controller=>"events"} new_event GET
/events/new(.:format) {:action=>"new",
:controller=>"events"} edit_event GET /events/:id/edit(.:format)
{:action=>"edit", :controller=>"events"}
event GET /events/:id(.:format) {:action=>"show", :controller=>"events"}
PUT /events/:id(.:format) {:action=>"update", :controller=>"events"}
DELETE /events/:id(.:format) {:action=>"destroy", :controller=>"events"}
root / {:controller=>"events", :action=>"index"}
/:controller(/:action(/:id(.:format)))
I believe you should use users_path (plural) and, the user routes are not in your rake output, can you check your routes file?
The error you are having is not from paperclip cos paperclip has nothing to do with that error message you are having. check your routes very well and also try to restart you sever.
I am a new Rails user and trying to integrate Paperclip into my app for the firs time. I am getting the following error message when hitting the "new post" button within my app, which is basically a blog at this point.
SyntaxError in Posts#new
Showing /Users/blanecordes/rails_projects/BoxScoreBuzz/app/views/posts/_form.html.erb where line #1 raised:
compile error
/Users/blanecordes/rails_projects/BoxScoreBuzz/app/views/posts/_form.html.erb:1: syntax error, unexpected tASSOC, expecting kEND
...end= form_for(#post), :html=> {:multipart => true} do |f| #...
^
/Users/blanecordes/rails_projects/BoxScoreBuzz/app/views/posts/_form.html.erb:1: syntax error, unexpected kDO, expecting kEND
...html=> {:multipart => true} do |f| #output_buffer.safe_conca...
^
/Users/blanecordes/rails_projects/BoxScoreBuzz/app/views/posts/_form.html.erb:35: syntax error, unexpected kENSURE, expecting $end
Extracted source (around line #1):
1: <%= form_for(#post), :html=> {:multipart => true} do |f| %>
2: <% if #post.errors.any? %>
3: <div id="error_explanation">
4: <h2><%= pluralize(#post.errors.count, "error") %> prohibited this post from being saved:</h2>
This is my current _form.html.erb code
<%= form_for(#post), :html=> {:multipart => true} do |f| %>
<% if #post.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#post.errors.count, "error") %> prohibited this post from being saved:</h2>
<ul>
<% #post.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :title %><br />
<%= f.text_field :title %>
</div>
<div class="field">
<%= f.label :content %><br />
<%= f.text_area :content %>
</div>
<div class="field">
<%= f.label 'Photo' %><br />
<%= f.file_field :photo %><br />
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
Try changing the first line in _form.html.erb to:
<%= form_for(#post, :html=> {:multipart => true}) do |f| %>