Using radio buttons

Rails
1

Hi,

I am new to rails and so have a very basic question. I have defined a
set of radio buttons in _form.html like this:

<%= radio_button_tag(:colour, “Blue”) %>
<%= label_tag(:colour_B, “Blue”) %>

Now I want to read the value of the radio button. Eg: if the user chose
“Blue”, then I want to display the user’s name in a table under the
column Blue. I already defined the table in index.html and I have a
model called usertable that I previously defined on the command line
using:

rails generate scaffold usertable name:string colour:text

I don’t know how to actually read in the value of radio button. Do I
need to
define it somehow in the def show block in the controller? …

Thanks so much. Any help is appreciated!

cathy

2

you can always try this when you have that kind of problem:

In your controller:

def whatever
flash[:notice] = params
redirect_to back
end

this will print the params hash if you have a flash message div set up.
The
original way of doing this is by looking at the console, and looking at
the
hash that gets send.

Parameters: {“utf8”=>“✓”, “authenticity_token”=>“lol_omg”,
“order_details”=>{“send_to”=>“my_house”, “product_id”=>“2”}}

usually in the controller you access this hash like this:

params[:order_detail]

where

params[:order_detail] is “order_details”=>{“send_to”=>“my_house”,
“product_id”=>“2”} and params[:order_details] will return

{“send_to”=>“my_house”, “product_id”=>“2”}

so putting params into the flash will send back all the params and that
will
let you see what parameters and send and how to access them.

3

cathy n. wrote in post #1027986:

I am new to rails and so have a very basic question. I have defined a
set of radio buttons in _form.html like this:

<%= radio_button_tag(:colour, “Blue”) %>
<%= label_tag(:colour_B, “Blue”) %>

Now I want to read the value of the radio button. Eg: if the user chose
“Blue”, then I want to display the user’s name in a table under the
column Blue. I already defined the table in index.html and I have a
model called usertable that I previously defined on the command line
using:

Keep in mind that radio button need to be defined in a radio button
group. Create the group by using the same value for the name attribute
of each radio button in the group:

Example:

radio_button_tag ‘gender’, ‘male’

=>

radio_button_tag ‘gender’, ‘female’

=> <input id=“gender_female” name=“gender” type=“radio” value=“female”

/>

Notice the name of the two radio button are both “gender”.

The result will appear on the params like:

{“utf8”=>“✓”,
“authenticity_token”=>“joHm5S13RnrNzaLv7t7HKU48SD6h6e5MRbwYwNU6nJA=”,
“gender”=>“female”, “submit”=>“Create”}

params[:gender]

female