I need to design a form for a account
resource. In that form, i need to collect some set of ids as an array in the params
hash in attribute called relationships
.
So the final params[account]
hash from the POST request should be like:
{:name => 'somename', :relationships => ["123", "23", "23445"]}
How shall I design the form_for
fields? I tried this, but didn't work:
<%= form_for @account do |f| %>
<%= f.text_field :name %>
<% @eligible_parents.each do |p| %>
<%= f.check_box "relationships", nil, :value => p.id %>
<b><%= p.name %></b><br/>
</span>
<% end %>
<%= f.submit "Submit" %>
<% end %>
Number of elements in @eligible_parents
varies every time.
relationships
is neither an association nor an attribute in account
model.
I have to use virtual attributes but I need to fill in an array from a form.
Please help. How can I do this?
You still need a fields_for
in your view, just use :relationships
as the record_name
then provide an object.
<%= form_for @account do |f| %>
<%= f.text_field :name %>
<% fields_for :relationships, @eligible_parents do |p| %>
<%= p.check_box "relationships", nil, :value => p.object.id %>
<b><%= p.object.name %></b><br/>
<% end %>
<%= f.submit "Submit" %>
<% end %>
Documentation here: ActionView::Helpers::FormHelper
I found this to be the cleanest way...
If you are working with straight data and want to send back an array without using any of these @objects:
<%= form_for :team do |t| %>
<%= t.fields_for 'people[]', [] do |p| %>
First Name: <%= p.text_field :first_name %>
Last Name: <%= p.text_field :last_name %>
<% end %>
<% end %>
your params data should return like this:
"team" => {
"people" => [
{"first_name" => "Michael", "last_name" => "Jordan"},
{"first_name" => "Steve", "last_name" => "Jobs"},
{"first_name" => "Barack", "last_name" => "Obama"}
]
}
If you want to send array of values just use [] in name attributes.In your case just use
<%= f.check_box "relationships", {}, :value => p.id, :name => "relationships[]" %>
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With