How to get the multiple selected data from select_tag

Rails
1

Im trying to get the multiple selected data from select_tag., but its
gives single data

I hv written.
<%=select_tag( :cons_attribute_id,options_from_collection_for_select
(Attribute.find_all_by_attributetype(“cons”),
“id”, “name”, 3),:multiple=>true) %>

I hv also written as:

<%=select_tag( :cons_attribute_id[],options_from_collection_for_select
(Attribute.find_all_by_attributetype(“cons”),
“id”, “name”, 3),:multiple=>true) %>

but it gives error… such as method not defined

2

On May 11, 12:18 pm, nishi [email protected] wrote:

<%=select_tag( :cons_attribute_id[],options_from_collection_for_select
(Attribute.find_all_by_attributetype(“cons”),
“id”, “name”, 3),:multiple=>true) %>

but it gives error… such as method not defined

when you write :foo[] ruby thinks that you want to call the [] method
on the symbol :foo. You can be explicit that you want the symbol with
content foo[] by doing :‘foo[]’
In this case you could also just pass a string to select_tag

Fred

3

Hi Nishi,

Follow the
bloghttp://railsbuilder.blogspot.com/2009/05/multiple-select-option-in-rails.htmlit
may help you
http://railsbuilder.blogspot.com/2009/05/multiple-select-option-in-rails.html

Thanks

4

Hi Fred,
thx for ur resp.

but i hv one more ques.
here we r using the

   options_from_collection_for_select

(Attribute.find_all_by_attributetype(“cons”)

I need a solution where we will get the data from model not directly
by “collection_select”
please give me sm idea, i need it as soon as possible.

5

Thx Fred and Arun.

I got the solution,

<%=select_tag(“attribute_id[]”,options_from_collection_for_select
(Attribute.find_all_by_attributetype(“cons”), “id”, “name”,
3),:multiple=>true) %>