I thought some code might help. Here's the class that creates the LOAD
helper to hold a form field widget:
class AjaxSelect:
def __init__(self, field, value, linktable):
self.field = field
self.value = value
self.linktable = linktable
def widget(self):
# initialize LOAD helper
environment = {
'request': current.request,
'response': current.response}
LOAD = LoadFactory(environment)
#get field and tablenames for element id's
fieldset = str(self.field).split('.')
tablename = fieldset[0]
fieldname = fieldset[1]
loadname = '%s_%s_loader' %(tablename, fieldname)
#create component wrapper with ajax loading helper
wrapper = LOAD('plugin_ajaxselect', 'set_widget.load',
args=[tablename, fieldname, self.value, self.linktable,
loadname], ajax=True, target=loadname)
return wrapper
And here's the controller that actually builds the widget:
table = request.args[0]
field = request.args[1]
value = request.args[2]
linktable = request.args[3]
loadname = request.args[4]
the_table = db[table]
the_field = the_table[field]
the_linktable = db[linktable]
w = OptionsWidget.widget(the_field, value)
#create button to refresh component
bid = table + '_' + field + '_refresher'
comp_url = URL('plugin_ajaxselect', 'set_widget.load', args=[table,
field, value, linktable, loadname])
button = A('refresh', _href=comp_url, cid=request.cid)
return dict(widget = w, button = button)
