Removing an element from an array


I’m adding objects to an array, where they are displayed elsewhere on
the page.
I went to add the remove method, called by the remove button on the
page, and it’s not functioning as I would hope. I figured this is a
straightforward thing, but I want to do it the right way.

Add in view
<%= link_to_remote ‘Add’,
:url => { :action => ‘add_subject’, :id => subject },
:update => ‘added_subjects’%>

Add in controller
def add_subject
@added_subjects = find_added_subjects
@added_subjects << Subject.find(params[:id])

render :partial => 'added_subjects', :layout => false


I tried this for the remove,

<%= link_to_remote ‘Remove’,
:url => { :action => ‘remove_subject’, :id => subject },
:update => ‘added_subjects’ %>

def remove_subject
@added_subjects = find_added_subjects
@added_subjects.reject! { |subject| == params[:id] }

render :partial => 'added_subjects', :layout => false



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