passing variable to partial to controller via a form

Question

I want to pass a variable to a partial, then from the partial through a form to the controller, am I doing that correctly? The variable is called item_id.

The partial form entry + variable:

<%= form_tag contribute_stripe_path, method: :post do %>
...
<%= hidden_field_tag item_id %>
...

The controller

@item_id = params[:item_id]
item = Count.find(@item_id)
... 
item.update_attribute(:value, new_value)

Routes

post '/contribute', to: 'counts#stripe', as: 'contribute_stripe'

Well, this seems correct. Don't forget about the condition to check whether an item exists. Also I believe this should be: hidden_field_tag 'item_id', item_id — Ilya Bodrov-Krukowski
– Ilya Bodrov-Krukowski, Commented Oct 20, 2014 at 8:41
Are you facing any issues(post the error part), also post the html code from where the partial is being called. The current flow looks fine. — Bijendra
– Bijendra, Commented Oct 20, 2014 at 10:29
The item_id was not passing, @bodrovis and Fer's answer worked — lightbots
– lightbots, Commented Oct 20, 2014 at 15:59

Fer · Accepted Answer · 2014-10-20 08:44:38Z

1

Posting the error usually helps.

What I see is the way you are defining the field is wrong.

<%= hidden_field_tag :item_id, item_id %>

The first param sets the field name, and the second one, its value (if the item_id variable is defined... if not you will get an error)

answered Oct 20, 2014 at 8:44

Fer

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passing variable to partial to controller via a form

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