Activeadmin disabling the "new resource" method - ruby-on-rails-3

I'm using Activeadmin for the admin interface on an app I'm working on (loving it) and I am curious if there is a way to disable the "New Resource" link in the upper-right corner of the resource show page?
The particular resource I'm using is nested inside another resource and I have a partial that allows it to be created from the show page on that parent resource.
I have disabled the resource in the menu, but I'd rather leave the resource in the menu so I can see/edit/delete those resources without having to find it by looking through its parent resource.

Previous solution didn`t work for me, so here is general solutions, that works always:
ActiveAdmin.register Book do
actions :index
#or like that
#actions :all, :except => [:destroy]
index do
column :title
column :author
end
end

Try config.clear_action_items! to remove the link to New and other links on top of the table

This removed the "New Resource" button from the top-right:
config.clear_action_items!
This removed both the "New Resource" button as well as the box "There are no resources yet - create one".
actions :all, :except => [:new]
Thank you, Irio

config.clear_action_items!
Will remove all the actions.
If you only want to remove the new action link you can also use:
config.remove_action_item(:new)

I know this is an old question, but I just came up to it (had the same problem), and realized that config.clear_action_items! and actions :all, :except => [:new] are fundamentally different.
config.clear_action_items! will remove the New button from the index page, while actions :all, :except => [:new] will remove both the button, AND the route, meaning you can't call it from another place (which, in my case, is needed).

I did this:
controller do
def action_methods
if some_condition
super
else
super - ['new', 'create', 'destroy']
end
end
end
To disable some of the possible actions. action_methods returns an array of the 7 standard CRUD actions, so you can subtract those you don’t want

Or even:
ActiveAdmin.register Purchase do
config.clear_action_items!
actions :index
end

Worked for me too ! :-)
ActiveAdmin.register AssetSumView do
menu :label => "Asset Summary View", :parent => "Things"
# no button for NEW (since this is a db view)
#---------------------------------------------------------------------------------------------
config.clear_action_items!
enter code here
action_item do
link_to "Assets" , "/admin/assets"
end
action_item do
link_to "AssetCatgCodes", "/admin/asset_catg_codes"
end
#---------------------------------------------------------------------------------------------

config.clear_action_items! does only half of the job. There is one issue though.
In case of empty index table, active admin show this message
There are no [Resources] yet. Create one
which doesn't get hidden by the above command and I don't want to entirely disable the action. So, I kept the link and edited the new action to redirect to the parent resource index with a message.
controller do
def new
if params[:parent_id].present?
super
else
redirect_to parent_resources_path, notice: "Create Resource through ParentResource"
end
end
end

Related

rspec test of index, show all not archived

Im trying to set up a (basic) test for a new feature I am going to implement. I have a job controller and instead of default showing all jobs I like to hide all the ones which is archived. I tried different ways but it seems like i am missing a piece or two of this puzzle. First i tried with calling 'visit' but get the message it does not exist. Second approach is using 'render' but that also ends up in a error saying render does not exists. (can i even use these methods in a controller spec?)
Is it wrong to put this in a controller test?
2 last test are causing errors
require "rails_helper"
require "spec_helper"
describe JobsController, :type => :controller do
context 'GET index' do
it "should be successful" do
get :index
expect(response).to be_success
end
it "renders the index template" do
get :index
expect(response).to render_template("index")
end
it "should not show any archived jobs as default" do
visit jobs_path
page.should have_no_content("Archived")
end
it 'should show the headers' do
render :template => 'job/index', :layout => 'layouts/job'
rendered.should_not contain('Archived')
end
end
end
Capybara is used for feature specs, and its matchers can be used in view specs.
Controller specs, by default, don't actually render the view because they're the wrong place to be checking for page content - https://www.relishapp.com/rspec/rspec-rails/docs/controller-specs
You should probably move some of your tests to feature tests/view tests

how can I make a simple route on rails and can I use it for an ajax form?

Ive been trying to create a simple route on rails, following this instructions
http://guides.rubyonrails.org/routing.html
my problem is that when I want to enter to my method I get a weird error.
I have a controler user and on my routes I wrote something like this
resources :users do
match "/custom/" => "user#custom"
end
So, at my controller I add this code
def custom
#user = User.find(params[:user_id])
end
but when I try to enter doing localhost:3000/users/1/custom I get an error like
uninitialized constant UserController
doing rake routes I can see
user_custom /users/:user_id/custom(.:format) user#custom
Any idea how to solve this problem?
I want this route to submit a form... is it possible to use this route (if i make it run) for use ajax? I want to submit a form.
Thanks
Change your route to:
resources :users do
match "/custom/" => "users#custom"
end
You should avoid the use of match though, since it will be deprecated in Rails 4. Try this instead
resources :users do
get :custom, on: :member
end
get is the verb, :custom the route and on: :member means that you are looking for a /users/:id/custom route instead of a /users/custom one. If you are looking for the latter, do this:
resources :users do
get :custom, on: :collection
end
Another way to do it is like this, which I prefer:
resources :users do
get 'custom', on: :collection
end
That gives you a route of /users/custom. If you were do use on: :member, then it would give you a route of /users/:id/custom.
You can also use a block for defining multiple custom actions for collections or members.
For example:
resources :users do
collection do
get 'custom'
post 'some_other_method'
end
member do
get 'some_action'
end
end

Defining a route for a method in rails 3

I'm new to Rails and currently using Rails 3, so please bear with me. I have a basic app, with a basic scaffolded controller/model e.g Contacts.
Amongst the methods for Show/Edit etc.. i have added a method called newcontacts (i have also added a newcontacts.html.erb), which will eventually show the last 5 contacts imported , but at the moment i am using the same code one would find in the basic Index method of a controller (i intend to filter the data at a later point), the method in the controller is -
def newcontacts
#contacts = Contact.all
respond_to do |format|
format.html # index.html.erb
end
end
I can access localhost:3000/contacts which displays the index method action from the contact controller, but when i try and access this method (newcontacts) using localhost:3000/contacts/newcontacts it returns the error
Couldn't find Contact with id=newcontacts
I have looked at the routes.rb file as i believe this is what needs editing, and have added the following line to routes.rb
match 'newcontacts', :to => 'contacts#newcontacts'
but this only works when i call localhost:3000/newcontacts.
So my question is, how do i get the url localhost:3000/contacts/newcontacts to work?
Any help would be great.
I think what you're trying to do is add another RESTful action.
resources :contacts do
# This will map to /contacts/newcontacts
get 'newcontacts', :on => :collection # Or (not and; use only one of these)...
# This will map to /contacts/:id/newcontacts
get 'newcontacts', :on => :member # ... if you want to pass in a contact id.
end
Try this in your routes.rb file:
resources :contacts do
member do
put 'newcontacts'
end
end
That will add in a new action for the contacts controller.

REST path for "new from copy"

For certain models, I wish to provide functionality that allows a user to create a new record with default attributes based on copy of an existing record.
I'm wondering what would be the correct restful route for this.
My initial thinking is that it could be a parameter to the new action. I.e. to borrow from the the Rails Guides examples, instead of just:
GET : /photos/new
Also allow:
GET : /photos/new/:id
...where :id is the id of the record to use as a template. The response would be a new/edit form, same as with a plain old new but the values would be pre-filled with data from the existing record. The parameter (or absense of it) could be easily handled by the new controller method.
The alternative seems to be to create a new controller method, for example copy which would also accept an id of an existing record and response with the new form as above. This seems a little 'incorrect' to me, as the record is not actually being copied until the user saves the new record (after probably editig it somewhat).
TIA...
UPDATE: my question is not "how do I do this in rails?", it's "is it RESTful?"
my question is not "how do I do this in rails?", it's "is it RESTful?"
No, it isn't. For that matter, neither is GET /photos/new. Rails seems to be hopelessly mired in the past, where it was considered haute programme for a GET on a URI to return an HTML form which would then POST x-www-form-urlencoded data back to that same URI. The opacity of that POST forces them to invent new verbs-as-URI's like /photos/new, when you could be using PUT instead, or at least POST with the same media type.
The simplest way to make a copy of an HTTP resource RESTfully is:
GET /photos/{id}/ -> [representation of a photo resource]
...make modifications to that representation as desired...
POST /photos/ <- [modified representation]
If you're implementing this for browsers, you should be able to perform those actions via Ajax quite easily, using an HTML page sitting perhaps at /photos/manager.html/ to drive the interaction with the user.
You can try to use nested resources. I'm not exactly sure about structure of you application, but in general using nested photos will look somehow like this:
routes.rb
resources :photos do
resources :photos
end
photos_controller.rb
before_filter :find_parent_photo, :only => [:new, :create]
def create
#photo = Photo.new params[:photo]
if #parent_photo.present?
# fill some #photo fields from #parent_photo
end
#photo.save
respond_with #photo
end
def find_parent_photo
#parent_photo = Photo.find(params[:photo_id]) if params[:photo_id].present?
end
new.html.haml
= form_for [#parent_photo, #photo] do |f|
-# your form code
previously when you wanted to add a link to photo creation you wrote something like that
= link_to "new photo", [:new, :photo]
now if you want to add a link to photo creation based on foto #photo1
= link_to "new photo based on other one", [:new, #photo1, :photo]
You should be able to match a route like so:
match 'photos/new/:photo_id' => 'photos#new
or you could just pass a :photo_id parameter in the url and handle it in the controller:
'/photos/new?photo_id=17'
Example using helper method: new_photo_path(:photo_id => 17)
Edit: I don't know if this conforms to REST
It may be over the top, but you could do something like this:
class PhotoCopiesController < ApplicationController
def new
#photo = Photo.find(params[:photo_id]).dup
end
def create
end
end
and
resources :photo_copies, :only => [:new, :create]
and
= link_to 'Copy', photo_copy_path(:photo_id => #photo.id)

Beginner struggling with update_attribute command

I am in the process of trying to use the update_attribute command, but struggling to get it working (at all) and hoped someone could point me in the right direction?
I have previously posted a question about this issue, it was very useful in terms of giving a feel for the mechanics of what is going on, but unfortunately it didn't actually get it working.
I have a database of items (Items), which among other things contains ':item_name', ':click_count' and ':external_url'.
Currently I have a view (Showselecteditems) in which there is a list of all the items, when a user clicks on an item name, they are directed to the appropriate external url. This works using the code:
<%= link_to selecteditem.item_name.to_s, selecteditem.external_url %>
I would now like to add the ability to count the number of times a particular item name has been clicked on (i.e. in total for all users, not individual users) and therefore the number of times each external url has been visited in order to work out which is most popular.
Reading around, I believe i need to modify the code above to something of the form:
<%= link_to selecteditem.item_name.to_s, selecteditem.external_url, {:controller => params[:controller], :action => clickcountplusone, :identifier => selecteditem.item_name} %>
And need to define this function somewhere - it seems to only be found if located in 'application_helper'?
def clickcountplusone
clickeditem = Items.find(params[:identifier])
clickeditem.update_attribute(:click_count, clickeditem.click_count + 1)
rescue ActiveRecord::RecordNotFound # to avoid error if no identifier value
end
Needless to say, I cannot get this to work... My question is therefore, how can I set things up correctly so that when the link is clicked on the count is incremented? The other common problem people seem to report is that the number will be incremented each time the page is refreshed, which I would like to avod if possible.
Previously people have suggested adding to the 'show' section of the 'Items' controller, however, i don't know how this would work as the links are being clicked on the Showselecteditems view page, not the database itself where you get the show, edit, destroy commands. Any advice greatly appreciated.
This
<%= link_to selecteditem.item_name.to_s, selecteditem.external_url, {:controller => params[:controller], :action => clickcountplusone, :identifier => selecteditem.item_name} %>
will not point user to the some_controller#clickcountplusone, because you already specified an external link.
The easiest way to do this job is to modify your link_to like:
<%= link_to selecteditem.item_name.to_s, {:controller => params[:controller], :action => clickcountplusone, :identifier => selecteditem.item_name} %>
And then to modify your actions source:
def clickcountplusone
clickeditem = Items.find(params[:identifier])
redirect_to clickeditem.external_url if clickeditem.update_attribute(:click_count, clickeditem.click_count + 1)
rescue ActiveRecord::RecordNotFound # to avoid error if no identifier value
end