I bet if you declared the widget custom class in the model, you wouldn
have this request object issue. Is there any particular need to use a
module instead of normal model code?
On 14 mar, 18:20, Manuele Pesenti <manuele.pese...@gmail.com> wrote:
> Il 14/03/2012 18:09, Alan Etkin ha scritto:
>
>
>
>
>
>
>
>
>
> > You can create a widget function that creates the original widget and
> > returns it modified:
>
> > def mycustomwidget():
> > new_widget = SQLFORM.widgets.autocomplete(request,
> > db.category.name, limitby=(0,10), min_length=2)
> > ... # modify the helper
> > return new_widget
>
> > db.mytable.myfield.widget = mycustomwidget
>
> > Other (better I think) way is to inherit the widget classes in a
> > custom class
>
> > class mycustomwidget(SQFFORM.widgets.widgetname):
> > # method overriding code
> > ....
>
> I tryed this second way but without success maybe because of different
> situations in which request is called in the same code line of sqlhtml.py
>
> in my modules file (for example test.py):
>
> ###############################################################
> from sqlhtml import AutocompleteWidget
> class smartAutocompleteWidget(AutocompleteWidget):
>
> def __init__(self, request, field, help_fields=[],
> help_string='%s', **kwargs):
> self.help_string = help_string
> hList = ['%s' for i in help_fields]
> if hList:
> self.help_string += ' (%s)' % '; '.join(hList)
> self.help_fields = help_fields
> AutocompleteWidget.__init__(self, request, field, **kwargs)
>
> def callback(self):
>
> if self.keyword in self.request.vars:
> field = self.fields[0]
> rows =
> self.db(field.like(self.request.vars[self.keyword]+'%'))\
>
> .select(orderby=self.orderby,limitby=self.limitby,*self.fields)
> if rows:
> if self.is_reference:
> id_field = self.fields[1]
> # import pdb; pdb.set_trace()
> raise
> HTTP(200,SELECT(_id=self.keyword,_class='autocomplete',
>
> _size=len(rows),_multiple=(len(rows)==1),
> *[OPTION(self.help_string %
> tuple([s[h.name] for h in self.fields[:1]+self.help_fields]),
> _value=s[id_field.name],
> _selected=(k==0)) \
> for k,s in
> enumerate(rows)]).xml())
> else:
> raise
> HTTP(200,SELECT(_id=self.keyword,_class='autocomplete',
>
> _size=len(rows),_multiple=(len(rows)==1),
> *[OPTION(s[field.name],
> _selected=(k==0)) \
> for k,s in
> enumerate(rows)]).xml())
> else:
>
> raise HTTP(200,'')
> ###############################################################
>
> in my controller:
>
> ###############################################################
> def foo():
> from test import smartAutocompleteWidget
> autocomplete_widget = smartAutocompleteWidget(
> request, db.meta_fields.field_name, id_field=db.meta_fields.id,
> help_fields=[db.meta_fields.id])
> form = SQLFORM.factory(
> Field('field_name', widget=autocomplete_widget))
> return dict(form=form)
>
> ###############################################################
>
> and this is the ticket error I get:
>
> Traceback (most recent call last):
> File
> "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/gluon/restricted.py", line
> 204, in restricted
> exec ccode in environment
> File
> "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/applications/dev_meta_db/controllers/plugin_metadb.py",
> line 296, in <module>
> File "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/gluon/globals.py",
> line 172, in <lambda>
> self._caller = lambda f: f()
> File "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/gluon/tools.py",
> line 2533, in f
> return action(*a, **b)
> File
> "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/applications/dev_meta_db/controllers/plugin_metadb.py",
> line 145, in add_field_to_table
> request, db.meta_fields.field_name, id_field=db.meta_fields.id,
> help_fields=[db.meta_fields.id])
> File "applications/dev_meta_db/modules/plugin_metadb.py", line 156,
> in __init__
> AutocompleteWidget.__init__(self, request, field, **kwargs)
> File "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/gluon/sqlhtml.py",
> line 552, in __init__
> self.url = URL(args=request.args)
> File "/home/manuele/Dropbox/sviluppo/web2py-1.99.4/gluon/html.py",
> line 242, in URL
> raise SyntaxError, 'not enough information to build the url'
> SyntaxError: not enough information to build the url
>
> Function argument list
> (a=None, c=None, f=None, r=None, args=['1'], vars={}, anchor='',
> extension=None, env=None, hmac_key=None, hash_vars=True, salt=None,
> user_signature=None, scheme=None, host=None, port=None,
> encode_embedded_slash=False)
>
> the four values a=None, c=None, f=None and r=None tell me why I got this
> error but I cannot understand why the request is differently defined
> then the case when I use the original autosugestWidget...
>
> Thank you for any help
>
> Manuele
