On Thu, Nov 26, 2009 at 8:40 AM, adelaide_mike
<mike.ro...@internode.on.net>wrote:
> In my report generating view I have this (snip):
>
> if tablename == 'Area':
> areas = Area.objects.all()
> data.append(['Code','Name','Description'])
> for area in areas:
> data.append([
> Paragraph(area.area, normalstyle, bulletText=None),
> Paragraph(area.nick, normalstyle, bulletText=None),
> Paragraph(area.desc, normalstyle, bulletText=None)
> ])
> table = Table(data, 1*[0.75*inch]+1*[2.0*inch]+1*[4.0*inch],
> style=ts)
>
> elif tablename == 'Rack':
> racks = Rack.objects.all()
> data.append(['Code','Name', 'Description'])
> for rack in racks:
> data.append([
> Paragraph(rack.rack, normalstyle, bulletText=None),
> Paragraph(rack.nick, normalstyle, bulletText=None), #
> thats line 108
> Paragraph(rack.desc, normalstyle, bulletText=None)
> ])
> table = Table(data, 1*[1.25*inch]+1*[2.0*inch]+1*[4.0*inch],
> style=ts)
>
> When tablename = "Area" the .pdf is generated without error. Wnen it
> is "Rack" this error is raised:
>
> Traceback (most recent call last):
>
> File "/home/mrowan/django/django/core/handlers/base.py", line 86, in
> get_response
> response = callback(request, *callback_args, **callback_kwargs)
>
> File "/home/mrowan/projects/cbm/djcbm/cbm/reports.py", line 108, in
> print_list
> Paragraph(rack.nick, normalstyle, bulletText=None),
>
> File "/usr/lib/python2.5/site-packages/reportlab/platypus/
> paragraph.py", line 523, in __init__
> self._setup(text, style, bulletText, frags, cleanBlockQuotedText)
>
> File "/usr/lib/python2.5/site-packages/reportlab/platypus/
> paragraph.py", line 543, in _setup
> text = cleaner(text)
>
> File "/usr/lib/python2.5/site-packages/reportlab/platypus/
> paragraph.py", line 61, in cleanBlockQuotedText
> L=filter(truth,map(_lineClean, split(text, '\n')))
>
> File "/usr/lib/python2.5/site-packages/reportlab/platypus/
> paragraph.py", line 23, in split
> return [uword.encode('utf8') for uword in text.split(delim)]
>
> AttributeError: 'NoneType' object has no attribute 'split'
>
> What does the error message mean? Can someone translate please? TIA
>
It's saying the specified line is trying to call the split method on an
object that has no such method. Specifically the object that it is trying
to call split on is None, so the value of text on that line is None. That
would seem to imply (assuing text is the first argument to Paragraph and it
hasn't been set to None between the time the initial __init__ for Paragraph
was entered and the time the error is raised), that there is a Rack in the
db where rack.nick is None. Which seems odd -- assuming nick is a
CharField, unless you have it declared with null=True, an "empty" nick ought
to be an empty string, not None.
Karen
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