Responding to my own post as I have narrowed down the issue to this table
definition that I believe breaks the graph model.
db.define_table("employee_comments",
Field("employee", "reference employee", requires=IS_IN_DB(db,
'employee.id', '%(profile_statement)s'), readable=False, writable=False),
Field("parent_id", "reference employee_comments", readable=False,
writable=False),
Field("body", "text", label='', notnull=True, requires=IS_NOT_EMPTY()),
auth.signature)
And particularly due this field definition.
Field("parent_id", "reference employee_comments", readable=False,
writable=False),
In other words, if I reference the parent id to its own, then the graph
model breaks with the error given above. Not sure its a bug but I thought I
should at least document the finding.
On Wednesday, August 3, 2016 at 12:03:07 PM UTC-4, Ron Chatterjee wrote:
>
> Guys, any one ran into an issue of running Graph model of web2py in
> windows? Wondering if others will try the instruction below and see if they
> can replicate the same problem.
>
> I get the following error:
>
> ....r\lib\site-packages\pygraphviz\agraph.py", line 481, in add_edge
> eh = gv.agedge(self.handle, uh, vh, key, _Action.find)
> KeyError: 'agedge: no key'
>
> *Steps I have taken to install the packages are following (Thank you
> Leonel):*
>
>
>
>
> 1. Install graphviz from here
> http://www.graphviz.org/pub/graphviz/stable/windows/graphviz-2.38.msi
>
> 2. Downloaded wheel source from https://pypi.python.org/pypi/wheel
>
> 3. Unpacked the zip and got a folder C:\Usersl\Desktop\wheel-0.29.0
>
> 4. In a command line:
>
> 4.1 cd C:\Users\Desktop\wheel-0.29.0
>
> 4.2 python setup.py install
>
> 5. Step 4 made an installer for me that is now
> in C:\Users\Desktop\wheel-0.24.0\dist
>
> 6. Having wheel installed download the right version wheel of pygraphviz
> (pygraphviz-1.3.1-cp27-none-win_amd64.whl for me) from here
> http://www.lfd.uci.edu/~gohlke/pythonlibs/
> <http://www.lfd.uci.edu/~gohlke/pythonlibs/#pygraphviz> (I was able to
> install and when I do import pygraphviz it doesn't complain)
>
> 7. With a command line In the directory where the whl file is "pip install
> 1.3.1-cp27-none-win_amd64.whl "
>
> 8. Add C:\Program Files (x86)\Graphviz2.38\bin to the environment PATH
>
> 9. Restart web2py, if you ran web2py from a command line, make sure to
> start it in a new one which has PATH updated.
>
>
>
--
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- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
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