Well, I now have a couple of values pre-selected, like this:
Controller:
IdPrefilledData = {'location' : ('option 1', 'option 2')}
return dict(IdPrefilledData=
IdPrefilledData)
Template:
<div py:replace="tmpl_context.sample_form(IdPrefilledData)">Input
Form</div>
That gives me only the location MultipleSelectField pre-selected, and the
rest of the form is not filled out,
because I"m no longer passing in the Sample ORM object. How do I pass both
the pre-selections for location
and the ORM object?
On Wed, Aug 10, 2011 at 10:48 AM, Damien Accorsi <[email protected]>wrote:
> **
> Ok. So... did you succeed in pre-selecting several values ?
>
> Le 10/08/2011 16:29, Matthew Cahn a écrit :
>
> Well, it's a thought, but despite the fact that I called the options of the
> select "option 1", "option 2", and "option 3" in my posting, it's a real
> project, and the item in the MultipleSelectField needs to allow multiple
> responses.
>
> Matthew
>
> On Tue, Aug 9, 2011 at 3:15 PM, Damien Accorsi <[email protected]>wrote:
>
>> By the way, if you are new to Tosca Widgets, I would recommend to start
>> by using "simple" widgets like TextField, SingleSelectField, etc. The
>> mechanisms are not always easy to understand, so the firsts steps should be
>> to use simple widgets with static data, then go into complex widgets with
>> dynamic data.
>>
>> Le 09/08/2011 21:11, Damien Accorsi a écrit :
>>
>> Matthew,
>>
>> In your templates you should have something like this:
>> ${tmpl_context.sample_form(ldPrefilledData, child_args=ldChildArgs)}
>>
>> Where :
>> * ldPrefilledData is a dictionnary containing the preselected values
>> * ldChildArgs is a dictionnary containing the available values
>>
>> In your case, you should have something like:
>> * ldChildArgs = { 'location': {'option 1', 'option 2', 'option 3'}}
>> * ldPrefilledData = { 'location': {'option 1', 'option 2'}}
>>
>> This should work.
>>
>> Damien
>>
>> Le 09/08/2011 20:40, MHCPU a écrit :
>>
>> I hope someone will tell me how to pass which options are selected
>> into a MultipleSelectField. I can see that the values being passed
>> into update_params is a list of SQLAlchemy ORM objects. It seems like
>> it needs to be a list of strings instead, but I'm not sure how to make
>> that happen.
>>
>> Matthew
>>
>> On Aug 9, 11:19 am, MHCPU <[email protected]> <[email protected]>
>> wrote:
>>
>> Could someone tell me how to get the selections in a
>> MultipleSelectField to reflect the values coming from the database?
>> The selections get saved to the database fine, but they don't get set
>> in the form when I give the form an existing set of data.
>>
>> For example, I have a Sample table, with a one-to-many relation to the
>> Location table. If the Location table has two records, with the
>> "some_attribute" field having the values "option 1" and "option 2", I
>> want those two options to be selected in the MultipleSelectField for
>> "some_attribute" when I display the form.
>>
>> I'm not sure how the MultipleFieldSelect would even know that the data
>> is supposed to come from the "some_attribute" field of the Location
>> table, which is probably why it doesn't work. When I create the
>> Sample object for insertion to the database, I have to make a list of
>> Location objects and assign them to the new Sample. Do I have to do
>> the reverse when I get a Sample from the database, in order to pass a
>> list to the form? How would I pass it?
>>
>> Any help appreciated.
>>
>> - Matthew
>>
>> Tables:
>>
>> class Sample(DeclarativeBase):
>> __tablename__ = 'sample'
>> id = Column(Integer, primary_key=True)
>> sampleNumber = Column(Unicode, index=True, unique=True,
>> nullable=False)
>> location = relation('Location', backref='sample',
>> order_by='Location.id')
>>
>> class Location(DeclarativeBase):
>> __tablename__ = 'location'
>> id = Column(Integer, primary_key=True)
>> sample_id = Column(Unicode, ForeignKey('sample.id'))
>> some_attribute = Column(Unicode)
>>
>> Form:
>>
>> class SampleForm(TableForm, twd.CustomisedForm):
>> ...
>> location = MultipleSelectField('some_attribute',
>> options=['option 1', 'option 2', 'option 3'])
>>
>> Controller:
>>
>> class RootController(BaseController):
>>
>> @validate(sample_form.create_sample_form, error_handler=create)
>> @expose()
>> def create_sample(self, **kw):
>> """Create a new sample record"""
>>
>> locationList = []
>> for ll in kw['location']:
>> newLocation = Location(some_attribute=ll)
>> locationList.append(newLocation)
>>
>> new = Sample(
>> sampleNumber = kw['sampleNumber'],
>> location = locationList,
>> )
>>
>> DBSession.add(new)
>>
>> flash( '''Added sample: %s'''%( kw['sampleNumber'], ))
>> redirect( './index' )
>>
>> @expose('myproject.templates.update')
>> def update(self, sampleNumber, **kw):
>> """Display the form for updating a sample, with values from
>> the database."""
>>
>> tmpl_context.sample_form = sample_form.update_sample_form
>>
>> sample =
>> DBSession.query(Sample).filter_by(sampleNumber=sampleNumber).one()
>>
>> return dict(sample=sample)
>>
>>
>> --
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>>
>>
>
>
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