This is my edit_scheme.rhtml file in which i'm getting this error.
<%=stylesheet_link_tag 'showpage'%>
<%=stylesheet_link_tag 'easy'%>
<%= error_messages_for 'scheme' %>
<% form_tag({:action =>'updatescheme', :id =>#scheme},:multipart=>true) do %>
<!--[form:document]-->
<h2>Edit Scheme</h2>
<%#role = Role.find(:first, :conditions =>["role_name=?",'Help Desk'])%>
<%= render :partial=> 'schemeform'%>
<!--[endform:document]-->
<tr style="text-align:right;">
<td></td>
<td> Status:</td>
<td> <%=radio_button :scheme, :status, "Active"%>Active
<%=radio_button :scheme, :status, "In-Active"%>In-Active</td>
</tr>
<p align="center" style="padding-top:10px;">
<%= submit_tag 'Edit' ,:style=>"padding:2px;"%>
<%if session[:role]=="Administrator"%>
<%= link_to 'Back',:action=>'scheme_search'%>
<%end%>
</p>
<% end %>
The error refers to this line
<%= error_messages_for 'scheme' %>
What I'm Missing? Any help is appreciated!
If you want to list all errors for i.e. a product from a form:
<% #product.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
You should also test are there any errors at all.
<% if #product.errors.any? %>
...
<% end %>
This should work with a collection too.
Try using the :object param as the second arg:
<%= error_messages_for 'scheme', :object => #scheme %>
I found this comment in the source of Rails 2.2 above the error_messages_for method:
# If the objects cannot be located as instance variables, you can add an extra <tt>:object</tt> parameter which gives the actual
# object (or array of objects to use):
#
# error_messages_for 'user', :object => #question.user
https://github.com/rails/rails/blob/c6cb5a5ab00ac9e857e5b2757d2bce6a5ad14b32/actionpack/lib/action_view/helpers/active_record_helper.rb#L162
Related
I have an index page with a partial form to submit new records to Package model. I keep this form in the index page, so the user doesn't need to leave the page when repeating this action, several times.
In the same page I have a form_tag fir multiple updates for the same controller, namely packages_controller.
Everything works fine, except the following: when hit the update button, going to the form BUT instead of submitting I go back (with the browser) and try to select other records to be updated then I have a routing error:
Routing Error
No route matches [PUT] "/projects/47/orderlines/18/packages"
My index page looks like this:
<% if current_user %>
<%= render "packages/form" %>
<% end %>
<% if #packages.count >= 1 %>
<table class="table table-striped">
<thead>
<tr>
<th> <input type="checkbox" id="selectAll" value="selectAll"></th>
<th>Packed </th>
<th>#No.</th>
<th>Type</th>
<th>Gross weight</th>
<th>Length</th>
<th>Width</th>
<th>Height</th>
<th></th>
<th>Container</th>
</tr>
</thead>
<%= form_tag edit_multiple_project_orderline_packages_path, method: :get do %>
<tbody>
<% for package in #packages %>
<% if package.packed== true %>
<% #label_type="success" %>
<% else %>
<% #label_type="default" %>
<% end %>
<tr>
<td><%= check_box_tag "package_ids[]", package.id %></td>
<td><span class="label label-<%= #label_type %>"><% if package.packed==true %>Packed<% else %>Unpacked<% end %></span></td>
<td><%= package.package_no %></td>
<td><%= package.package_type %></td>
<td><%= package.gross_weight %></td>
<td><%= package.length %></td>
<td><%= package.width %></td>
<td><%= package.height %></td>
<% if #orderline.packages.count >= 1 %>
<td><%= link_to 'Delete', [package.orderline.project, package.orderline, package],
method: :delete,
data: { confirm: 'Are you sure?' } %></td>
<td><%= #containers.find(package.container_id).container_id if package.packed %></td>
<% end %>
</tr>
<% end %>
</tbody>
</table>
<%= submit_tag "Add to container", class: "btn btn-primary" %>
<% end %>
<br />
<%= will_paginate %>
<br>
And the multiple_edit form
<div class="col-sm-4">
<%= form_tag update_multiple_project_orderline_packages_path, method: :put do %>
<ul>
<% #packages.each do |package| %>
<li>
<%= hidden_field_tag "package_ids[]", package.id %>
<%= package.package_no %>
<%= package.container_id %>
<% package.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</li>
<% end %>
</ul>
<%= fields_for :package do |f| %>
<div class="field">
<%= f.label :package_no %><br />
<%= f.text_field :package_no, :class => "form-control" %>
</div>
<br />
<div class="field">
<%= f.label :container_id %><br />
<%= select_tag 'package[container_id]', options_from_collection_for_select(#project.containers, 'id', 'container_id', default_blank: true), prompt: "- Select container -", :class => "form-control" %>
</div>
<br />
<div class="field">
<%= f.label :packed %><br />
<%= f.select :packed, [["Packed", true], ["Unpacked", false]],{ prompt: "- Packing -"},{ :class => "form-control" } %>
</div>
<% end %>
<div class="actions">
<br />
<%= submit_tag "Update", :class => "btn btn-primary" %>
</div>
<% end %>
</div>
And the packages controller edit_multiple actions:
def edit_multiple
#project = Project.find(params[:project_id])
#packages = Package.find(params[:package_ids])
end
def update_multiple
#packages = Package.find(params[:package_ids])
#packages.reject! do |package|
package.update_attributes(package_params.reject { |k,v| v.blank? })
end
if #packages.empty?
redirect_to project_orderline_packages_url
else
#package = Package.new(package_params)
render "edit_multiple"
end
end
packages_controller create action:
def create
project = Project.find(params[:project_id])
orderline = project.orderlines.find(params[:orderline_id])
#package = orderline.packages.new(package_params)
#package.save
if #package.save
flash[:success] = "Package(s) was successfully added."
redirect_to :back
else
render 'new'
end
And my routes:
resources :projects do
resources :containers
resources :orderlines do
resources :packages do
collection do
put :packed
get :edit_multiple
put :update_multiple
end
end
end
end
I just added my routes here:
edit_multiple_project_orderline_packages_path GET /projects/:project_id/orderlines/:orderline_id/packages/edit_multiple(.:format)
packages#edit_multiple
update_multiple_project_orderline_packages_path PUT /projects/:project_id/orderlines/:orderline_id/packages/update_multiple(.:format)
packages#update_multiple
project_orderline_packages_path GET /projects/:project_id/orderlines/:orderline_id/packages(.:format)
packages#index
POST /projects/:project_id/orderlines/:orderline_id/packages(.:format)
packages#create
new_project_orderline_package_path GET /projects/:project_id/orderlines/:orderline_id/packages/new(.:format)
packages#new
edit_project_orderline_package_path GET /projects/:project_id/orderlines/:orderline_id/packages/:id/edit(.:format)
packages#edit
project_orderline_package_path GET /projects/:project_id/orderlines/:orderline_id/packages/:id(.:format)
packages#show
PATCH /projects/:project_id/orderlines/:orderline_id/packages/:id(.:format)
packages#update
PUT /projects/:project_id/orderlines/:orderline_id/packages/:id(.:format)
packages#update
DELETE /projects/:project_id/orderlines/:orderline_id/packages/:id(.:format)
your form_tag code is update_multiple_project_orderline_packages_path
I think it should be update_multiple_project_orderline_package_path(project_id, orderline_id, package_id)
I am not 100% sure with my statement above, because you gave scrambled Rails Routes, hard to read
and your form action seems goes to packages#edit_multiple controller
so paste your edit_multiple method, not create method
are you implementing your scenario above with javascript, or just plain HTML?
I have a form set up with the following code:
<h2>Add collaborators to the wiki </h2>
<table>
<tr>
<th>Name</th>
<th>Email</th>
<th>Give Access</th>
</tr>
<tr>
<%= form_for (#collaboration) do |f| %>
<% #users.each do |user| %>
<td><%= user.name %></td>
<td><%= user.email %></td>
<td> <%= f.collection_select :user_id, User.all, :id, :name, prompt: true %> </td>
</tr>
<%= f.submit %>
<% end %>
</table>
<%= f.submit %>
<% end %>
And my routes are set up like this:
resources :wikis do
resources :collaborations
end
And in my controller I defined my variables like this:
def new
#wiki = Wiki.find(params[:wiki_id])
#collaboration = #wiki.collaborations.new
end
But when I visit the page clicking on a link I created
<%= link_to 'Add Collaborator', new_wiki_collaboration_path(#wiki) %>
I still get this error:
undefined method `collaborations_path' for #<#<Class:0x007f8b6a5a8a00>:0x007f8b67820c90>
Any thoughts on what goes wrong here?
Your form here just goes to collaboration_path which you've not defined.
<%= form_for (#collaboration) do |f| %>
<% end %>
You need to include the wiki
<%= form_for ([#wiki, #collaboration]) do |f| %>
<% end %>
I'm new to rails. I have this block in my view afrikaans.html.erb
<% #afrikaans.each do |course| %>
<div class="course">
<h3 class="course-name"><%= link_to course.name, course.url %></h3>
<% if I18n.locale == I18n.default_locale %>
<p class="course-description_en"><%= course.description_en %></p>
<% else %>
<p class="course-description_se"><%= course.description_se %></p>
<% end %>
<% if course.youtube_url.blank? == false %>
<p><%= raw ApplicationHelper.youtube_embed(course.youtube_url) %></p>
<% end %>
<% if course.language_id == 1 %>
<p> <%= image_tag("eng.png", :alt => "England", :class =>"round") %></p>
<% else %>
<p> <%= image_tag("swe.png", :alt => "Sweden", :class =>"round") %></p>
<% end %>
<% if ApplicationHelper.active_link?(course.url) == false %>
<td><%= I18n.t('home.broken_link') %></td>
<% end %>
<p><%= course.nbr_of_votes %> <%= I18n.t('home.votes') %></p>
</tr>
<% end %>
I also have another file swahili.html.erb with the same structure. I wanted to implement something like this
afrikaans.html.erb
<% #afrikaans.each do |course| %>
<%= render 'shared/partial' %>
<% end %>
So that I can also have
swahili.html.erb
<% #swahili.each do |course| %>
<%= render 'shared/partial' %>
<% end %>
The partial will contain the part of the block. I've tried this but it's not working. My question is this even possible in rails and if so what could be the problem. What options do I have if it isn't possible so that I can avoid the repetition since the two files have the same structure?
Update. This One worked out for me. I only needed to add :course => course on the block so that my views becomes something like
<% #afrikaans.each do |course| %>
<%= render 'shared/course_body', :course => course %>
<% end %>
Of course I've not named my partial "partial". This was just a matter of asking. Thanks to one #Alexander Panasyuk's answer.
Just create shared directory within your app/views path. And create file _partial.html.erb inside shared:
<div class="course">
<h3 class="course-name"><%= link_to course.name, course.url %></h3>
<% if I18n.locale == I18n.default_locale %>
<p class="course-description_en"><%= course.description_en %></p>
<% else %>
<p class="course-description_se"><%= course.description_se %></p>
<% end %>
<% if course.youtube_url.blank? == false %>
<p><%= raw ApplicationHelper.youtube_embed(course.youtube_url) %></p>
<% end %>
<% if course.language_id == 1 %>
<p> <%= image_tag("eng.png", :alt => "England", :class =>"round") %></p>
<% else %>
<p> <%= image_tag("swe.png", :alt => "Sweden", :class =>"round") %></p>
<% end %>
<% if ApplicationHelper.active_link?(course.url) == false %>
<td><%= I18n.t('home.broken_link') %></td>
<% end %>
<p><%= course.nbr_of_votes %> <%= I18n.t('home.votes') %></p>
</tr>
Then render your partial in afrikaans.html.erb like that:
<% #afrikaans.each do |course| %>
<%= render 'shared/partial', :course => course %>
<% end %>
or in swahili.html.erb:
<% #swahili.each do |course| %>
<%= render 'shared/partial', :course => course %>
<% end %>
It is most definitely possible, and usually a good idea.
In the future it would be nice if you could post the actual results and/or error messages you get, which would help a lot when trying to help you.
That said, I'm guessing you need to pass the course variable to your partial. Change
<%= render 'shared/partial' %>
to
<%= render 'shared/partial', :course => course %>
Partials do not have access to local variables in other partials. In that sense you can think of each partial as separate methods on the same object instance.
<%= render 'shared/partial', locale: 'swahili', course: course %>
You will have local vars 'locale' and 'course' in your partial set to 'swahili' and #course, respectively. Also, I'd advise to name your partials something more meaningful, like 'course'.
I have a 2 views that I want to use before the create action.
1st view is add_sample_details.html.erb
<% form_tag add_expt_details_samples_path :method => :post do %>
<% for sample in #samples %>
<% fields_for "samples[]", sample do |form| %>
<fieldset>
<legend>Sample Name: <%= sample.name %></legend>
<p><center><%= form.label :sample_title %>
<%= form.text_field :sample_title, :size => 25 %></center></p>
<table>
<tr>
<td>
<%= form.label :taxon_id %>
<%= form.text_field :taxon_id, :size => 15 %>
</td>
<td>
<%= form.label :scientific_name %>
<%= form.text_field :scientific_name, :size => 20 %>
</td>
<td>
<%= form.label :common_name %>
<%= form.text_field :common_name, :size => 15 %>
</td>
</tr>
</table>
<p>
<center>
<%= form.label :sample_descripition %><br \>
<%= form.text_area :description %>
</center>
</p>
</fieldset>
<% end %>
<% end %>
<p><center><%= submit_tag "Next" %></center></p>
<% for samp in #samples %>
<%= hidden_field_tag("sample_ids[]", samp.id) %>
<% end %>
<% end %>
in the SamplesController, the add_expt_details looks like this
def add_expt_details
# Collect the samples that were sent
#expt_samples = Sample.find(params[:sample_ids])
end
and the add_expt_details.html.erb looks like this
<% form_for #expt_samples, :url => create_study_samples_path, :html => { :method => :put } do |f| %>
<% #expt_samples.each do |samp|%>
<% f.fields_for :expts do |form| %>
<%= form.label :experiment_title %>
<%= form.text_field :expt_title, :size => 15 %><br \>
<% end %>
<% end %>
<p><center><%= submit_tag "Next" %></center></p>
<% end %>
and my create_study action is like this
def create_study
#study = Study.new(params[:study])
# this method collects all the samples from the add_sra_details view from the hidden_field_tag
if current_user.id?
# Put the current user_id in the study.user_id
#study.user_id = current_user.id
if #study.save # Save the values for the study
# Update the Sample attributes
#samples = Sample.update(params[:samples].keys, params[:samples].values).reject { |p| p.errors.empty? }
# For all those sample_ids selected by the user, put the study ids in the sample_study_id
#samples.each do |samp|
#study.samples << samp
end
# get the ids_sent from the add_expt_details
#expt_samples = Sample.find(params[:id])
# A Flash message stating the details would be prefereable..! (Means you have to do it)
flash[:success] = "Your Study has been Created"
redirect_to add_expt_details_samples_path
else
flash[:error] = "Study Faulty"
render :action => "add_sra_details"
end
end
end
The error message I get when I keep the #expt_samples = Sample.find(params[:id]) is "undefined method `keys' for nil:NilClass"
and If I dont have the #expt_samples, it gives me an error "Couldn't Find id in Sample"
Can some one suggest how can I update set of sample ids from one form and also create new Expt model records that are associated to the sample_ids in another form.
All suggestions are appreciated.
Cheers
You need to refer to Rails' accepts_nested_attributes_for
To see how to link existing objects with forms, you can see examples here:
http://josemota.net/2010/11/rails-3-has_many-through-checkboxes/
rails 3 has_many :through Form with checkboxes
has_many through checkboxes
I can't sort out the forms. I'm going along with tutorial (Agile Web Development with Rails) and I'm trying to simply add the field Quantity to my line_items table. Can't figure this out. Please help. How can I change button_to to pass extra value?
<% if notice %>
<p id="notice" ><%= notice %></p>
<% end %>
<h1>Your Pragmatic Catalog</h1>
<% #products.each do |product| %>
<div class="entry" >
<%= image_tag(product.image_url) %>
<h3><%= product.title %></h3>
<%=sanitize product.description %>
<div class="price_line" >
<span class="price" ></span>
<%= button_to 'Add to Cart', line_items_path(:product_id => product) %>
</div>
</div>
<% end %>
Could you do something like:
<%= button_to 'Add to Cart', { :action => "delete", :id => #image.id, :locals => {:quantity => quantity} } %>
?