Rials varable becomes nill on a render

First off apologies for a rails question on the ruby list, but the
rails mailing list sign-on page seems to be down at the moment so I
thought I would look for help here.

Bearing in mind I am very new to Rails… I have a create action:

def create
@post = Post.new(params[:post])
if @post.save
flash[:notice] = ‘Post was successfully created.’
redirect_to :action => ‘list’
@tag_list = params[:tag_list]
render :action => ‘new’

if the @post.save returns false the user is presented with the new
view again:

def new
@tags = Tag.find(:all)
@post = Post.new

On the initial call to new the new view displays a list of tags from
the array @tags. If the create action fails and the render :action =>
‘new’ line is executed the @tags variable becomes nill

How come this happens? and is there a ‘clean’ was of keeping the
@tags variable as it should be no matter how many times the create
action fails??

Any help will be gratefully received.


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