how to enter and update difeerent tables data from views ?

hi ,

i have two tables called streams and tags. using tags table i am assigning tags to the stream table entries using acts_as_taggable plugin. Now problem is if i try to enter the data for tag table in new.html.erb file from views/streams getting error like

Couldn't find Stream without an ID problem

i have tried to enter data in new.html.erb file like:       <p>        <b>Tags</b><br />        <%= f.text_area('tags_as_text') %>        </p>

instead if i use below code in views:

<p>        <b>Tags</b><br />        <%= text_field_tag 'tag_list', @stream.tags.collect { |tag|" ") ? '"' +"#{}" + '"' : }.join(" ")%>      </p>

i am able to enter data but it is not reflecting in tag table and not showing if i do the show option provided .

how to solve this problem?

thanks for any help or suggestions?

regards Srikanth