create multiple records from a comma separated entry in rails form

Question

I've looked at these two SO discussions yet it's not working for me

1) Creating multiple records at once from comma seperated IDs

2) How to accept comma-delimited list to build tags for model?

I am trying to take a single string from a form and create multiple active record entries being separated by commas

form:

<%= form_for @tag, html: {:class => "form-horizontal" } do |f| %>               
            <fieldset>
              <div class="form-group">
                <%= f.label :tagname, "Tag Name", :class => "col-lg-3 control-label" %>     
                <%= f.text_field :tagname, :class => "form-control" %>                       
              </div>      

              <div class="form-group">                      
                  <%= f.submit class: 'btn btn-primary' %>
              </div>
                  <%= link_to 'Back', tags_path %> |
                  <%= link_to 'Home', :userroot %>   
            </fieldset>
<% end %>

controller:

def create
@tag = params[:tagname].split(/,\s*/)
@tag.each do |t|
  newtag = Tag.new(:tagname => t)
  newtag.save
end
redirect_to tags_path
end

error:

NoMethodError in TagsController#create 

undefined method `split' for nil:NilClass

Request 
Parameters:
{"utf8"=>"✓",
 "authenticity_token"=>"RwjDJ9WQD6nJ51AymbSBubcmDbzDNTYWot0nP1FPV04=",
 "tag"=>{"tagname"=>"a new tag, two tag, three tag"},
 "commit"=>"Create Tag"}

Have you checked your params? Your comma delimited string is probably under `params[:tag][:tagname]` — rlecaro2, Jan 24 '14 at 19:08
i knew it had to be something that simple... thanks. please post as an answer so i can give you credit — Kenny Coleman, Jan 24 '14 at 19:24

score 4 · Accepted Answer · answered Jan 24 '14 at 19:29

4

Have you checked your params? Your comma delimited string is probably under

params[:tag][:tagname]

Be sure to check if the string is empty anyways, you can't expect perfect behaviour from the user.

GL & HF.

answered Jan 24 '14 at 19:29

rlecaro2

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create multiple records from a comma separated entry in rails form

1 Answers1