I'm trying to subclass the Select widget, so that I can create an
editable scrolling list (done via JavaScript code that I found).
My entire class is as follows:
--Code--
from django import forms
class ComboBox(forms.Select):
class Media:
js = ("/js/wise/comboBox.js",)
def __init__(self, choices=()):
# Set up calls to the combo box JavaScript
attrs = {
"onFocus": "return combo_focus(this);",
"onChange": "return combo_change(this);",
"onKeyDown": "return combo_keydown(this, event);",
"onKeyPress": "return combo_keypress(this, event);",
"onKeyUp": "return combo_keyup(this, event);",
"onClick": "return combo_click(this, '');"
}
super(ComboBox, self).__init__(attrs, choices)
--Code--
The form that uses it looks like:
--Code--
class TestTargetForm(forms.Form):
# Family name
fname = forms.ModelChoiceField(
queryset=TargetFamily.objects.all(),
required = False,
label = "Family Name",
empty_label = "[Match All]",
widget = ComboBox
)
--Code--
Issue #1:
I figured out that I can add HTML attributes by setting the 'attrs'
variable. Which means I only need to create __init__() and not
render(). That works fine except that I want to call a JavaScript
function with a string (the onClick attribute).
The single quotes get escaped. How would you pass a string to a
JavaScript function using 'attrs'?
Issue #2:
The 'class Media' definition is being ignored when running through the
Django server. I can import my class in python, instantiate the class,
and print the media:
python manage.py shell
>>> from share.widgets import ComboBox
>>> print ComboBox().media
<script type="text/javascript" src="/js/wise/comboBox.js"></script>
but when I look at the web page source coming back from the Django
server, that <script></script> text isn't there. Did I need to do
anything else?
I would appreciate any help either by example or pointers to examples or
docs. I looked in the Django source and it looks like the admin stuff
sets Media just like I'm doing. The Django doc page for Media also
shows an example that looks just like what I'm doing (doesn't mention
that I have to do anything else).
--
Adam Stein @ Xerox Corporation Email: a...@eng.mc.xerox.com
Disclaimer: Any/All views expressed
here have been proven to be my own. [http://www.csh.rit.edu/~adam/]
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