wx._core.PyAssertionError in Class Designer

[rubdos]

Hi,

I'm on dabo git working branch, because I'm affected with bugs #16 en #15.

I'm a newbe to Dabo, but I'm trying to create an invoicing application as I became a self-employed.

I started very basic with sqlite; a table for my clients:

CREATE TABLE "clients" (
    "client_id" INTEGER PRIMARY KEY AUTOINCREMENT,
    "name" TEXT,
    "street" TEXT,
    "city" TEXT,
    "postalcode" TEXT
)

and

CREATE TABLE "invoices" (
    "invoice_id" INTEGER PRIMARY KEY AUTOINCREMENT,
    "date" DATETIME,
    "client_fk" INTEGER
)

Now, I try to use the Class Designer and the Add From Data Environment feature, but after selecting the order of my fields and selecting Column; labels on Left on the Layout Selection, the Class Designer breaks when clicking next with this error:

Traceback (most recent call last):
  File "/home/rsmet/.local/lib/python2.7/site-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/uiwx/dControlMixin.py", line 27, in _onWxHit
    self.raiseEvent(dEvents.Hit, evt, *args, **kwargs)
  File "/home/rsmet/.local/lib/python2.7/site-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/uiwx/dPemMixin.py", line 1084, in raiseEvent
    super(dPemMixin, self).raiseEvent(eventClass, nativeEvent, *args, **kwargs)
  File "/home/rsmet/.local/lib/python2.7/site-packages/Dabo-0.9.14-py2.7.egg/dabo/lib/eventMixin.py", line 81, in raiseEvent
    bindingFunction(event)
  File "/home/rsmet/.local/lib/python2.7/site-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/dialogs/Wizard.py", line 126, in onNext
    self.CurrentPage += pg.nextPage()
  File "/home/rsmet/.local/lib/python2.7/site-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/dialogs/Wizard.py", line 311, in _setCurrPage
    self._pages[self._currentPage].onEnterPage(direction)
  File "/home/rsmet/src/dabo/ide/wizards/QuickLayoutWizard.py", line 382, in onEnterPage
    cs.setColExpand(True, 1)
  File "/home/rsmet/.local/lib/python2.7/site-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/uiwx/dGridSizer.py", line 178, in setColExpand
    self.AddGrowableCol(colNum, proportion=proportion)
  File "/usr/lib64/python2.7/site-packages/wx-3.0-gtk2/wx/_core.py", line 15364, in AddGrowableCol
    return _core_.FlexGridSizer_AddGrowableCol(*args, **kwargs)
wx._core.PyAssertionError: C++ assertion "!m_cols || idx < (size_t)m_cols" failed at ./src/common/sizer.cpp(1980) in AddGrowableCol(): invalid column index

[EdLeafe]

Hmmm... I'm not able to reproduce this on my OSX system, so I'm guessing that it's a Gtk issue. Can you modify the dGridSizer script to add some debug information? Just before the line that's causing the error (line 178), try adding:

print "Count:", self.HighCol, "Index:", colNum

Now re-run the Class Designer and follow the same steps as before. This time it should print the debug line before the traceback. Let me know what it prints.

[rubdos]

Just checked, also happens with PostgreSQL (I debugged some stuff in sqlite, now I moved to Postgres, because, well, performance and ease of use).

And the output of HighCol is pretty fancy:
Count: -1 Index: 1

Let me know what I can do to help debug this any further. I don't have a good grasp on the code atm., so I won't be of much help. This is probably a two-minute fix for you. If you want to, I can give you temporary database credentials to try against.

[gagabon501]

Hi. I'm new to Dabo as well and I am on Ubuntu 15.10. I have a similar issue. Actually, I am just following the "TheStep-By-StepGuidetoDaboProgramming" tutorial and I am stuck on this error:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/uiwx/dControlMixin.py", line 27, in _onWxHit
self.raiseEvent(dEvents.Hit, evt, _args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/uiwx/dPemMixin.py", line 1084, in raiseEvent
super(dPemMixin, self).raiseEvent(eventClass, nativeEvent, _args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Dabo-0.9.14-py2.7.egg/dabo/lib/eventMixin.py", line 81, in raiseEvent
bindingFunction(event)
File "/usr/local/lib/python2.7/dist-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/dialogs/Wizard.py", line 126, in onNext
self.CurrentPage += pg.nextPage()
File "/usr/local/lib/python2.7/dist-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/dialogs/Wizard.py", line 311, in _setCurrPage
self._pages[self._currentPage].onEnterPage(direction)
File "/home/gag0/Documents/Programming/Dabo/dabo-0.9.14/ide/wizards/QuickLayoutWizard.py", line 382, in onEnterPage
cs.setColExpand(True, 1)
File "/usr/local/lib/python2.7/dist-packages/Dabo-0.9.14-py2.7.egg/dabo/ui/uiwx/dGridSizer.py", line 178, in setColExpand
self.AddGrowableCol(colNum, proportion=proportion)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 15364, in AddGrowableCol
return core.FlexGridSizer_AddGrowableCol(_args, *_kwargs)
wx._core.PyAssertionError: C++ assertion "!m_cols || idx < (size_t)m_cols" failed at ../src/common/sizer.cpp(1980) in AddGrowableCol(): invalid column index

[EdLeafe]

OK, it looks like the grid sizer doesn't like having things set on columns that don't exist yet. Strange that the other platforms have no problem with this.

I've pushed a fix to the working branch. Can you try that out and let me know if it fixes the problem?

[gagabon501]

Wow Ed! Thank you very much! It did solve the issue. I was able to continue. Thank you so much.