activeadmin: adding delete for a nested resource - ruby-on-rails

I have a infrastructure object composed for many datacenters. In the apps/admin/infrastructures.rb I have the following code:
form do |f|
f.inputs "Infrastructure details" do
f.input :name
f.has_many :datacenters do |datacenter_form|
datacenter_form.input :name
end
end
f.buttons
end
I can add datacenters with no problems but I don't know how I can delete it from infrastructure form.

Sep 2017 Update:
Rails 5.1.4, ActiveAdmin 1.0.0
Append :id and _destroy in permit_params along with other attributes from the model e.g. :name in your case. Then provide the :allow_destroy option in f.has_many too. Other requirements remain the same; like adding allow_destroy: true in accepts_nested_attributes_for.
Final look:
ActiveAdmin.register Infrastructure do
permit_params :name, datacenters_attributes: [:id, :_destroy, :name]
form do |f|
f.inputs "Infrastructure details" do
f.input :name
f.has_many :datacenters, heading: false,
allow_destroy: true,
new_record: false do |datacenter_form|
datacenter_form.input :name
end
end
f.buttons
end
end
ActiveAdmin Reference
This worked for me:
i.input :_destroy, as: :boolean
and in the Model remember to add :allow_destroy :
accepts_nested_attributes_for :images, allow_destroy: true

Solved adding the following line:
datacenter_form.input :_destroy, :as => :boolean, :required => false, :label => 'Remove'
The code looks like:
form do |f|
f.inputs "Infrastructure details" do
f.input :name
f.has_many :datacenters do |datacenter_form|
datacenter_form.input :name
datacenter_form.input :_destroy, :as => :boolean, :required => false, :label => 'Remove'
end
end
f.buttons
end

If you cant destroy the object nested. You need to put :_destroy in your app/admin/object.rb permit_params
permit_params :id,:name, :cod, :_destroy

I hope this will be helpful (I've changed my code to suit your example, so I hope there are no typos here):
form do |f|
f.inputs "Infrastructure details" do
f.input :name
f.has_many :datacenters do |datacenter_form|
datacenter_form.inputs :datacenters do
datacenter_form.input :name
end
datacenter_form.buttons do
link_to "Delete", admin_datacenter_path(datacenter_form.object), method: "delete", class: "button" unless datacenter_form.object.new_record?
end
end
end
f.buttons
end
and the controller method should be defined in datacenters.rb
controller do
def destroy
#datacenter = Datacenter.find(params[:id])
#datacenter.destroy
redirect_to edit_admin_retailer_path(#datacenter.infrastructure)
end
end

This should work:
datacenter_form.label :_delete
datacenter_form.check_box :_delete
This adds a checkbox for each nested object which will delete the object if checked.

Don't forget to add the following to your parent model
has_many :child_name, :dependent => :destroy

Related

How to show persisted images in ActiveAdmin?

ActiveAdmin automatically pulls up the persisted information for an object when the update form is displayed. It doesn't show the images though - doesn't even show the name in my form - how do I fix this to show the actual image and it's name?
ActiveAdmin.register Art do
permit_params :art_pic_attachments_attributes: [:id, :picture, :_destroy]
form(html: { multipart: true }) do |f|
f.inputs do
f.has_many :art_pic_attachments, allow_destroy: true, heading: 'Images' do |ff|
ff.file_field :picture, required: true, heading: "Pictures"
end
end
f.actions
end
Maybe this wiki article will help. The key is to use an image tag as the input hint.
f.inputs "Attachment", :multipart => true do
f.input :cover_page, :as => :file, :hint => image_tag(f.object.cover_page.url)
f.input :cover_page_cache, :as => :hidden
end

Blank ActiveAdmin pages

My ActiveAdmin index page for ad_images works fine but new, edit, and view look blank like this...
admin/ad_image.rb looks like this:
ActiveAdmin.register AdImage do
permit_params :name, :url, :imageable_type, :imageable_id
form(:html => { :multipart => true }) do |f|
f.inputs "Ad Image" do
f.input :name
f.input :url, as: :file
f.input :imageable_type
f.input :imageable_id
end
f.actions
end
end
The AdImage model works normally otherwise. Any clue what's going on?
UPDATE
Turns out that "ad_image" conflicts with a formtastic style of the same name... I think? When I remove the "ad_image" class from the form (which is added automatically) everything works fine.
I can give an alias to my ActiveAdmin class like so
ActiveAdmin.register AdImage, as: "ImagesForAds"
... and the form will appear. But now I can't save anything...
Edit admin/ad_image.rb :---
ActiveAdmin.register AdImage do
permit_params :name, :url, :imageable_type, :imageable_id
form do |f|
f.inputs "Ad Image" do
f.input :name
f.input :url, as: :file
f.input :imageable_type
f.input :imageable_id
end
f.actions
end
end

Nested form in activeadmin not saving updates

I have a nested form in ActiveAdmin for these models (a :class_section has_many :class_dates):
class ClassDate < ActiveRecord::Base
belongs_to :class_section
validates :start_time, :presence => true
validates :end_time, :presence => true
end
and
class ClassSection < ActiveRecord::Base
belongs_to :class_course
has_many :class_dates
belongs_to :location
accepts_nested_attributes_for :class_dates
end
Everything seems to be in the right place when I look at the form. However, when I update a class_date, it doesn't save.
ActiveAdmin.register ClassSection do
permit_params :max_students, :min_students, :info, :class_course_id, :location_id
form do |f|
f.inputs "Details" do
f.input :class_course, member_label: :id_num
f.input :min_students, label: "Minunum Students"
f.input :max_students, label: "Maxiumum Students"
f.input :location
end
f.inputs do
f.input :info, label: "Additional Information"
end
f.inputs "Dates" do
f.has_many :class_dates, heading: false do |cd|
cd.input :start_time, :as => :datetime_picker
cd.input :end_time, :as => :datetime_picker
end
end
f.actions
end
index do
column :class_course
column :location
default_actions
end
filter :class_course
filter :location
show do |cs|
attributes_table do
row :class_course do
cs.class_course.id_num + " - " + cs.class_course.name
end
row :location
row :min_students, label: "Minunum Students"
row :max_students, label: "Maxiumum Students"
row :info, label: "Additional Information"
end
panel "Dates" do
attributes_table_for class_section.class_dates do
rows :start_time, :end_time
end
end
active_admin_comments
end
end
Here is the ActiveAdmin file for ClassDates:
ActiveAdmin.register ClassDate, as: "Dates" do
permit_params :start_time, :end_time, :class_section_id
belongs_to :class_section
end
Can you see a reason why it's not saving properly?
UPDATE: I added the following code to the AA and it seems to work now:
controller do
def permitted_params
params.permit!
end
end
Let me know if there is a better solution. Thanks.
UPDATE 2: There is one lingering problem however. I am unable to delete ClassDates using this form.
You need to permit nested parameters, but you should never use params.permit!. It's extremely unsafe. Try this:
ActiveAdmin.register ClassSection do
permit_params :max_students, :min_students, :info, :class_course_id, :location_id,
class_dates_attributes: [ :id, :start_time, :end_time, :_destroy ]
form do |f|
# ...
f.inputs "Dates" do
f.has_many :class_dates, heading: false, allow_destroy: true do |cd|
cd.input :start_time, :as => :datetime_picker
cd.input :end_time, :as => :datetime_picker
end
end
f.actions
end
# ...
end
The configuration (and permitted_params) of your ClassDate admin panel has nothing to do with the permitted parameters within the ClassSection admin panel. Treat them as separate controllers within the app.
Adding the allow_destroy: true option to the has_many call will add a checkbox to the form to allow you to delete a class time upon form submission.

manipulating the h3 title with an activeadmin has_many form

I looked at this question and was able to get set up a has_many form properly.
Here's where I'm at:
f.has_many :related_contents do |rc|
rc.inputs "first configuration" do
#...
end
end
f.has_many :related_contents do |rc|
rc.inputs "second configuration do
#...
end
end
so I want to have different configurations of fields. What I can't figure out is how to set the <h3> that activeadmin generates and sets as the title for the nested fields. I thought something like
f.has_many :related_contents, :title => "first set" do |rc|
would work, but It does not. Does anybody know what I need to do to get this working right?
I assume that changing the <h3> will also change the button that gets generated to add. Is there another option I need to set for that as well?
Add a :heading option to the f.has_many method
f.has_many :related_contents, :heading => "first set" do |rc|
#...
end
To remove the heading altogether, set it to false or nil
$('h3:contains("Related Contents")').hide().first().show();
Not perfect, but it definitely looks better.
you need to follow the next order, i mean, you need to set on first line the "inputs" and then the "has_many" block, I hope this is what you are looking, regards!
form do |f|
f.inputs "details #1" do
f.input :title, :label => "Title"
f.input :description, :label => "Description"
f.input :image, :as => :file, :required => false, :label=>'Image'
end
f.inputs "details #2" do
f.has_many :subdetails do |a|
a.input :description, :label => "Description"
a.input :image, :as => :file, :required => false, :label=>'Image'
end
end
Ok, after have some problems with the title of has_many I could figure out how is the correct way for do it and i think is more cleaner and fancy...
form do |f|
f.inputs "Post" do
f.input :title
f.input :description
end
f.inputs "Comments" do
f.has_many :comments do |a|
a.input :title
a.input :description
end
end
f.buttons
end

rails ActiveAdmin nested form has_one accepts_attributes_for formtastic issue

I am using ActiveAdmin and Rails 3.1 -- having problem understanding whether the following is a bug, or if there is some way to do it correctly that I am not understanding. I am trying to use a nested model with a has one relationship, so that I can create a page and fill out it's meta data in 1 step. --
(page has_one meta_data, accepts_nested_attributes_for meta_data)
Example 1)
in this example, when I click new page, meta data section is there but there are no input fields -- also, if I edit the record, it shows up correctly, however the fieldset is duplicated in the second section... and if I remove the f.inputs wrapping semantic_field_for (which would make sense), then it breaks completely and shows nothing in the meta data area...
form do |f|
f.inputs "Page Information" do
f.input :name
f.input :uri
f.input :view
f.input :body, :as => :text
f.input :active
end
f.inputs "Meta Data" do
f.semantic_fields_for :meta_data do |meta_form|
meta_form.inputs :title, :description, :keywords, :name => "Meta Information"
end
end
end
I understand the meta data probably isn't being instantiated, but I am not sure how I am supposed to do that in the form block? (or if I can even do it) -- The only way I am able to get this to work is by doing using a custom form, and building the meta data in the view, which looks like this
2) How I am working around it, but seems hacky
<%= semantic_form_for [:admin, #page] do |f| %>
<% #page.build_meta_data %>
<%= f.inputs :name => "Page Information" do %>
<%= f.input :name %>
<%= f.input :uri %>
<%= f.input :view %>
<%= f.input :body, :as => :text %>
<%= f.input :active %>
<% end %>
<%= f.semantic_fields_for :meta_data do |meta_form| %>
<%= meta_form.inputs :title, :description, :keywords, :name => "Meta Information" %>
<% end %>
<%= f.buttons %>
<% end %>
Thanks in advance for any help or clarification.
(note to moderators I started another thread on this but was not as clear and didn't have the workaround solution I do now yet, so if one of the questions should be deleted please delete the other)
I found a better solution for you. You can use :for option in inputs helper.
f.inputs "Meta Data", for: [:meta_data, f.object.meta_data || MetaData.new] do |meta_form|
meta_form.input :title
meta_form.input :description
meta_form.input :keywords
end
I think this might work too, but I didn't check
f.inputs :title, :desctiption, :keywords,
name: "Meta Data",
for: [:meta_data, f.object.meta_data || MetaData.new]
In rails 4, this is something that works, with a nice design
e.g.,
A customer has one account
model/customer.rb
accepts_nested_attributes_for :account
admin/customer.rb
form do |f|
f.inputs do
f.input :user, input_html: { disabled: true }
f.input :name
f.input :address
f.input :city
f.input :country, as: :string
end
f.buttons
f.inputs "Account Information", for: [:account, f.object.account] do |s|
s.input :active, as: :boolean
s.input :subscription, as: :boolean
s.input :expires_on, as: :datepicker
s.actions
end
end
controller do
def permitted_params
params.permit!
end
end
end
i was having the same problem, i worked in your hack and got it working.
i then moved <% #page.build_meta_data %> to a custom new method like this
controller do
def new
#tenant = Tenant.new
#tenant.build_tenant_configurable
end
end
hope this helps

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