Can't get form results from a mutiple select box...

rubyonrails-talk
1

Hey everyone, This seems really elementary and I have no clue what is wrong... I have a form that has two multiple select boxes (using some javascript to shift items from the left select box to the right box and vice versa) and I want to grab what is in the second box after the user clicks submit. It seems that each time I try to get that info in my controller, it is returning nil. My form is as follows:

<%= form_tag :controller => 'push', :action => 'index', :type => 'test' -%> Choose users to sync (<%= @address_num %> total users) <select name="sel1" style="width:200px" size="10" multiple="multiple">   <% @address_array.each do |item| %>   <option value="<%= item %>"><%= item %></option>   <% end %> </select> <input type="button" value="--&gt;" onclick="moveOptions(this.form.sel1, this.form.sel2);" /> <input type="button" value="&lt;--" onclick="moveOptions(this.form.sel2, this.form.sel1);" />

<select name="sel2" style="width:200px" size="10" multiple="multiple">   <option value="1">All Users (default)</option> </select>

<%= submit_tag 'submit' %> <%= end_form_tag -%>

In my controller, I have:

@results = params[:sel2]

but it turns out that @results is nil every time!

Does anybody know what is going wrong??

Thanks!! - Jeff Miller

2

I just figured out something... If I actually select something in the second box, it works... but if there are multiple ones, it doesn't. If multiple items are selected, it only passes the first in the box... I realize now that this is an HTML problem and I will have to just do a bunch of googling, but if anyone knows how to overcome this, any help would be appreciated.

Thanks, - Jeff Miller

3

Hi, I'm just starting a project and want to implement the same functionality. I would be very interested in knowing if/how you resolved this issue. How are you handling loading both lists on page load? That is, when you are editing an item, I would assume that you would only load the "available" list with non-selected items and the "selected" list with only those items previously selected.

TIA, Henry

4

Jeff Miller wrote:

Hey everyone, This seems really elementary and I have no clue what is wrong... I have a form that has two multiple select boxes (using some javascript to shift items from the left select box to the right box and vice versa) and I want to grab what is in the second box after the user clicks submit. It seems that each time I try to get that info in my controller, it is returning nil. My form is as follows:

<%= form_tag :controller => 'push', :action => 'index', :type => 'test' -%> Choose users to sync (<%= @address_num %> total users) <select name="sel1" style="width:200px" size="10" multiple="multiple">   <% @address_array.each do |item| %>   <option value="<%= item %>"><%= item %></option>   <% end %> </select> <input type="button" value="--&gt;" onclick="moveOptions(this.form.sel1, this.form.sel2);" /> <input type="button" value="&lt;--" onclick="moveOptions(this.form.sel2, this.form.sel1);" />

<select name="sel2" style="width:200px" size="10" multiple="multiple">   <option value="1">All Users (default)</option> </select>

<%= submit_tag 'submit' %> <%= end_form_tag -%>

pls try to name <select name="sel2"> like this (rest is same)   <option value="1">All Users (default)</option> </select> In the controller pls try params[:sel2]||. I think this will give u the all the values of all the selected options in the select drop down.