def render_tree_menu(request, menu={}, path=''):
'''Renders the menu as a browsable tree. <path> indicates with
section of <menu> to display items from. The resulting view will
have at least one divider and the items within each divider. This
function doesn't require the tree that defines the menu to be
balanced, so each item being rendered could correspond to a menu
item (a leaf node) or a section. If the path leads to leaf nodes,
then these items are pulled from the db so their name can be
displayed.'''
logger.debug('menu:%s, path:%s',menu,path)
sections = [section for section in path.split('/') if section.strip()]
result = menu['structure']
# go to the specified path within the menu
for section in sections:
result = result[section]
# prepare items to be rendered
template_items = []
if type(result) == list:
# there's no more subsections; we pull items from the DB to display them.
template_items = dao.get_items(result)
for item in template_items:
item['type'] = 'item'
# insert a divider so it's clear for the user.
template_items.insert(0, {'type':'divider', 'name':sections[-1]})
elif type(result) == dict:
for divider in result:
template_items.append({'type':'divider', 'name':divider})
section = result[divider]
for item in section:
if type(section) == list:
# item is a leaf node (menu entry).
items = dao.get_items(section)
for x in items:
x['type'] = 'item'
template_items.append(x)
# break to move to the next divider
break
elif type(section) == dict:
# item is a subsection
template_items.append({'type':'section','name':item,
'path':'/'.join((path, divider, item))})
logger.info('items: %s', template_items)
return render(request, 'index.html', {'items':template_items, 'menu_id': menu['id'],
'template':'tree_menu.html', 'path':path})
def render_two_lvl_menu(request, menu={}, path=''):
logger.debug('menu:%s, path:%s', menu, path)
# parse input path and extract section if there is one
levels = [section for section in path.split('/') if section.strip()]
section = levels[1] if len(levels) == 2 else ''
# section
if section:
division = levels[0]
ids = menu['structure'][division][section]
items = dao.get_items(ids)
logger.info('items %s', items)
return render(request, 'index.html',
{'template':'section.html', 'name':section, 'items':items})
# top level
else:
return render(request, 'index.html',
{'menu':menu, 'template':'twolvlmenu.html', 'title':'Menu'})
