Hello,
if the controls on a form contain a dRadiolist connected to a database
field, and if the corresponding dataset is empty, for example by
applying a filter, then the application crashes with an AttributeError:
'dRadioList' object has no attribute 'Clear'.
Very simple example to demonstrate this:
SQLite database "mytest.db", containing a table "person":
create table person(
idn integer primary key,
firstname varchar(20),
lastname varchar(20) not null,
gender char(1) not null check(gender in 'F', 'M')
);
insert into person (firstname, lastname, gender) values ('Funkel',
'Friedhelm',
'M');
insert into person (firstname, lastname, gender) values ('Prinz', 'Birgit',
'F');
insert into person (firstname, lastname, gender) values ('Bruchhagen',
'Heribert', 'M');
Application code:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# sqlite_feldtest.py
import dabo
dabo.ui.loadUI("wx")
class BizPerson(dabo.biz.dBizobj):
def initProperties(self):
self.DataSource = "person"
self.KeyField = "id"
self.AutoPopulatePK = True
self.UserSQL = """SELECT id, firstname, lastname, gender FROM
person"""
self.DefaultValues["gender"] = "M"
self.DataStructure = [("id", "I", True, "person", "id"),
("firstname", "C", False, "person", "firstname"),
("lastname", "C", False, "person", "lastname"),
("gender", "C", False, "person", "gender")]
class FrmTest(dabo.ui.dForm):
def afterInit(self):
self.Sizer = dabo.ui.dSizer("v")
panel = dabo.ui.dPanel(self)
self.Sizer.append1x(panel)
panel.Sizer = dabo.ui.dSizer("v")
grPerson = dabo.ui.dGrid(panel, ColumnCount=4)
grPerson.DataSource = "person"
grPerson.Columns[0].Caption = "ID"
grPerson.Columns[0].DataField = "id"
grPerson.Columns[1].Caption = "First name"
grPerson.Columns[1].DataField = "firstname"
grPerson.Columns[2].Caption = "Last name"
grPerson.Columns[2].DataField = "lastname"
grPerson.Columns[3].Caption = "Gender"
grPerson.Columns[3].DataField = "gender"
panel.Sizer.append1x(grPerson)
hs = dabo.ui.dSizer("h")
hs.append(dabo.ui.dButton(panel, Caption="Last name 'B..'",
OnHit=self.OnFilterB))
hs.append(dabo.ui.dButton(panel, Caption="Last name 'C..'",
OnHit=self.OnFilterC))
hs.append(dabo.ui.dButton(panel, Caption="All",
OnHit=self.OnNoFilter))
panel.Sizer.append(hs)
gs = dabo.ui.dGridSizer(MaxCols=2, HGap=3, VGap=3)
gs.setColExpand(True, 1)
gs.append(dabo.ui.dLabel(panel, Caption="First name"),
halign="right")
gs.append(dabo.ui.dTextBox(panel, DataSource="person",
DataField="firstname"))
gs.append(dabo.ui.dLabel(panel, Caption="Last name"),
halign="right")
gs.append(dabo.ui.dTextBox(panel, DataSource="person",
DataField="lastname"))
gs.append(dabo.ui.dLabel(panel, Caption="Gender"),
halign="right")
rlGender = dabo.ui.dRadioList(panel, DataSource="person",
DataField="gender",
Orientation="horizontal")
rlGender.Choices = ["Female", "Male"]
rlGender.Keys = ["F", "M"]
rlGender.ValueMode = "Key"
gs.append(rlGender)
panel.Sizer.append(gs, 0, "x")
self.layout()
def afterInitAll(self):
self.requery()
def applyFilter(self, startchar):
self.removeFilter()
try:
self.PrimaryBizobj.filter("lastname", startchar,
"startswith")
except dabo.dException.NoRecordsException:
pass
self.update()
def OnFilterB(self, evt):
self.applyFilter("B")
def OnFilterC(self, evt):
self.applyFilter("C")
def OnNoFilter(self, evt):
self.removeFilters()
self.update()
def createBizobjs(self):
self.Application.addConnectFile("sqlite_feldtest.cnxml")
self.Connection =
self.Application.getConnectionByName("SQLite_Leute")
biz = BizPerson(self.Connection)
self.addBizobj(biz)
if __name__ == "__main__":
app = dabo.dApp()
app.MainFormClass = FrmTest
app.start()
Clicking on the button "Last name 'C..'":
s...@elend:~/bin/dabo_sib> python sqlite_leute.py
Traceback (most recent call last):
File
"/usr/lib/python2.6/site-packages/wx-2.8-gtk2-unicode/wx/_misc.py", line
1341, in Notify
self.notify()
File
"/usr/lib/python2.6/site-packages/wx-2.8-gtk2-unicode/wx/_core.py", line
14653, in Notify
self.result = self.callable(*self.args, **self.kwargs)
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dForm.py", line 122, in
__update
super(BaseForm, self).update()
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dPemMixin.py", line
1242, in
update
self.raiseEvent(dEvents.Update)
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dPemMixin.py", line
947, in
raiseEvent
super(dPemMixin, self).raiseEvent(eventClass, nativeEvent, *args,
**kwargs)
File "/home/sib/svn_src/dabo_trunk/dabo/lib/eventMixin.py", line 93, in
raiseEvent
bindingFunction(event)
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dPemMixin.py", line
1223, in
__onUpdate
self.update()
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dPemMixin.py", line
1242, in
update
self.raiseEvent(dEvents.Update)
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dPemMixin.py", line
947, in
raiseEvent
super(dPemMixin, self).raiseEvent(eventClass, nativeEvent, *args,
**kwargs)
File "/home/sib/svn_src/dabo_trunk/dabo/lib/eventMixin.py", line 93, in
raiseEvent
bindingFunction(event)
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dPemMixin.py", line
1223, in
__onUpdate
self.update()
File "/home/sib/svn_src/dabo_trunk/dabo/ui/dDataControlMixinBase.py",
line 97,
in update
self.__dataUpdate()
File "/home/sib/svn_src/dabo_trunk/dabo/ui/dDataControlMixinBase.py", line
116, in __dataUpdate
self.Value = self.getBlankValue()
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dControlItemMixin.py",
line
380, in _setValue
self.KeyValue = value
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dControlItemMixin.py",
line
235, in _setKeyValue
self._resetChoices()
File "/home/sib/svn_src/dabo_trunk/dabo/ui/uiwx/dControlItemMixin.py",
line
109, in _resetChoices
self.Clear()
AttributeError: 'dRadioList' object has no attribute 'Clear'
And that doesn't look right, does it?
Platform: GTK
Python Version: 2.6 on linux2
Dabo Version: Version 0.9.1; Revision 5075M
UI Version: 2.8.8.1 on wxGTK (gtk2)
Same thing on Windows:
Platform: Win
Python Version: 2.6.1 on win32
Dabo Version: Version 0.9.1; Revision ~5067
UI Version: 2.8.9.2 on wxMSW
Regards
Sibylle
--
Sibylle Koczian
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