Oops my copy and paste wasn't perfect, the function I posted should end
with:
return output
On Tuesday, July 10, 2012 5:15:12 PM UTC+1, villas wrote:
>
> Hi Alan
>
> Here is some test code using recursion I used to create a menu in the
> past. I used it in a module but you can test it easily for yourself at the
> commandline as I will explain.
>
> def test_html_nodes(nodes,link_to_function='area'):
> if not nodes:
> nodes = [
> { 'id':1, 'parent_id':0, 'name':'a' },
> { 'id':2, 'parent_id':0, 'name':'b' },
> { 'id':3, 'parent_id':2, 'name':'c' },
> { 'id':4, 'parent_id':2, 'name':'d' },
> { 'id':5, 'parent_id':4, 'name':'e' },
> { 'id':6, 'parent_id':0, 'name':'f' }
> ]
> global output
> output = ''
> global count
> count = 0
> def build_node(node):
> global output
> #output += '<li><a>'+node['name']+'</a>'
> li_id = ' id="%s"' % node['id']
> output += '<li%s>'%li_id + \
> str(A(node['name'],_href=URL(link_to_function,args=[node
> ['id']])))
> build_nodes(node['id'])
> output += '</li>'
>
> def build_nodes(node_parent_id):
> global output
> global count
> count += 1
> subnodes = [node for node in nodes if node['parent_id']
> ==node_parent_id
> ]
> if len(subnodes) > 0 :
> cl = ' class="sf-menu sf-vertical sf-js-enabled sf-shadow"'
> ifcount
> ==1 else ''
> output += '<ul%s>' % cl
> [build_node(subnode) for subnode in subnodes]
> output += '</ul>'
>
> build_nodes(0) # Pass in parent id to start as top level nodes
>
> Copy and paste that into a python commandline and then test with:
> test_html_nodes(None)
>
> You should see:
>
> <ul class="sf-menu sf-vertical sf-js-enabled sf-shadow">
> <li id="1"><a href="/carhire/default/area/1">a</a></li>
> <li id="2"><a href="/carhire/default/area/2">b</a>
> <ul>
> <li id="3"><a href="/carhire/default/area/3">c</a></li>
> <li id="4"><a href="/carhire/default/area/4">d</a>
> <ul>
> <li id="5"><a href="/carhire/default/area/5">e</a></li>
> </ul>
> </li>
> </ul>
> </li>
> <li id="6"><a href="/carhire/default/area/6">f</a></li>
> </ul>
>
>
>
>
> return output
>
