In many cases, values are already converted to the appropriate type
automatically (e.g., when doing database inserts). Aside from that, you
could write your own convenience function in a few lines of code, and it
can do exactly what you want (e.g., convert both "True" and "true" to a
boolean). For example:
import ast
def convert(value):
value = 'True' if value == 'true' else 'False' if value == 'false' else
value
try:
return ast.literal_eval(value)
except:
pass
return value
Anthony
On Thursday, May 11, 2017 at 3:10:47 AM UTC-4, Brendan Barnwell wrote:
>
> Does web2py provide any kind of utility to convert the request args and
> vars "intelligently" into regular Python types? Values passed in the URL
> or query string will always be received as strings by web2py code, but in
> many cases they really need to be converted to other types. In a URL like
> ".../app/controller/function/this/1?option=True=3.456", it would be
> nice to have a simple function that could be called on each argument to
> convert it to the "right" type. It would be nice if it were slightly
> smarter than ast.literal_eval, for instance maybe accepting "true" and
> "false" as well as "True" and "False".
>
> I'm not suggesting anything that would automatically do this, but just a
> convenience function that could be explicitly called on the arguments you
> want to convert, e.g.
>
> number = convert(request.args[1])
> option = convert(request.vars['option'])
> # etc.
>
> Is there anything like this? Would it be a good thing to add? It seems
> like the sort of thing I'd expect there to be a general-purpose Python
> library for, but looking around I wasn't able to find anything.
>
>
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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