CODEWITHSUNDEEP
ruby-on-railsarraysformscheckbox
Rob
Rob

Reputation: 35

Rails Checkboxes as array

I'm trying to pass multiple checkboxes as array to a db table. So i want to add multiple topics to a project.

= form_for @project, url: admin_projects_path, :html => { :multipart => true } do |p|
  %p
    =p.label :name
    =p.text_field :name 
  %p
    = p.label :topic
  %p
    = p.label "Value1"
    = p.check_box(:topic, {:multiple => true}, "value1", nil)
    = p.label "Value2"
    = p.check_box(:topic, {:multiple => true}, "value2", nil)
    = p.label "Value3"
    = p.check_box(:topic, {:multiple => true}, "value3", nil)
  %p
    = p.submit

but here topic returns nil in the projects, even whenever i check multiple checkboxes (i added to the whitelist params in the controller, so that cant be the cause)

What am i doing wrong here?

EDIT:

This is the code of the controller:

def new
  @project = Project.new
end

def create
  @project = Project.new(project_params)

  if @project.save
    redirect_to admin_projects_path
  else
    render :new
  end
end

private
# param white listing

def project_params
  params.require(:project).permit(:name, :description, :photo, :project_type, :highlight, :content, :topic, :category)
end

Solution found:

View was correctly.

 serialize :topic

needed be added to the project model

and the permit params should be edited so they only accept arrays on topic 

private
# param white listing

def project_params
  params[:project][:topic] ||= []
  params.require(:project).permit(:name, :description, :content, topic: [])
end

Upvotes: 0

Views: 2016

Answers (1)

Gaurav Gupta
Gaurav Gupta

Reputation: 1191

If you save array in database add this to your model:

class Project < ActiveRecord::Base
  serialize :topic
end

UPDATE

And make your form as:

 %p
   = p.label "Value1"
   = p.check_box(:topic, {:multiple => true}, "value1", nil, name:"project[topic][]")
   = p.label "Value2"
   = p.check_box(:topic, {:multiple => true}, "value2", nil, name:"project[topic][]")
   = p.label "Value3"
   = p.check_box(:topic, {:multiple => true}, "value3", nil, name:"project[topic][]")

and if you get permitted parameter issue add like:

params.permit! #only if you get issue of permitted parameter

Hope this will help you.

Upvotes: 2

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