Hi,
I like the functionality of an AutoCompleteField, but I want to use it
more effectively - and hopefully as nicely "packaged" as possible...
Basically, an AutoCompleteField is a compound widget with a TextField
where the user enters a value and a HiddenField that contains the
underlying "code value". I think of this as similar to HTML's single
select field where each option has a value different from what is
displayed - but it is more interactive via AJAX.
My current code is like the Widget example code - it looks up states by
their two letter abbreviation.
Basically the value I want to be saved to the database is the 2 letter
state code - and I want the proper "display" value (full state name) to
show when it is retrieved from the database.
Here is my current solution - it works, but I'd like to put all
functionality into the MyAutoCompleteField Class.
# statemap is a dictionary like {'AK': 'Alaska', 'AL': 'Alabama', ...}
class MyAutoCompleteField(widgets.AutoCompleteField):
def adjust_value(self, value=None, **params):
"""Adjust a value for displaying in a widget."""
value = {'hidden': value, 'text': statemap[value]}
return super(MyAutoCompleteField, self).adjust_value(value,
**params)
# ideally, I'd like to similarly adjust the input value from the
form...
#...etc...
class MyController(controllers.Controller):
@expose()
def save(self, id=None, **kw):
# I want only the "hidden" code for state_field...
kw['state_field'] = kw['state_field']['hidden']
# etc... (save values to the database)
Is there some function I can override in MyAutoCompleteField Class to
catch the point where the input value is read - and only use the value
from the hidden field? Or must I adjust things in the controller as
shown?
I hope to use a lot of these AutoCompleteFields for various lookups, and
I'd like to get it right, so it is easy to do each time.
Thanks for any suggestions,
-Laurin
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