>
> Hello all, im new to python and web2py. i have been trying to get
> matplotlib working in web2py and followed the example at
> http://www.web2pyslices.com/slice/show/1357/matplotlib-howto this is
> working but i dont know how to plug my data into it.
One option is to make the following before calling plot(...) in the action
code. I assume you have already a model and data stored in the db.
a) Make a DAL set.select() of your stored data. It should look like
myrows = db(<a query>).select()
b) Map the output of the select command (a Rows class instance) to a list
of tuples and store it in a variable. For example:
mylist = list()
for row in myrows:
mylist.append((row.column_a, row.column_b))
c) Replace the hardcoded list for the dictionary element named my_plot with
the variable
return plot({'my_plot': mylist})
BTW: It's possible to reduce a, b, and c to a single command using lambda
and list comprehensions
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