Have you seen GqlQuery.bind() ?
http://code.google.com/appengine/docs/datastore/gqlqueryclass.html#GqlQuery_bind
-Mahmoud
On Nov 23, 4:47 pm, GAERiddler <[EMAIL PROTECTED]> wrote:
> Hello,
>
> So I am not a Python programmer, though I am currently trying to pick
> it up.
>
> My question is whether there is a way I can stash all my named
> arguments in a dictionary and then pass that off to the GQL query
> somehow?
>
> What I am trying to do is dynamically generate my GQL queries based on
> how my user fills-out a form.
>
> so here's the constructor I am calling: class GqlQuery(query_string,
> *args, **kwds)
>
> Instead of passing a bunch of arguments in here, is there a way to
> pass or finesse a dictionary object into those arguments?
>
> Being new to Python I was hoping to find a bind() method that accepted
> a dictionary as a parameter and took care of this for me.
>
> Here's some contrived sample code to illustrate my question:
>
> filters = {}
> whereSection = "WHERE "
>
> if (name != None):
> if (len(filters) > 0):
> whereSection += "AND "
> whereSection += "name = :name "
> filters['name'] = name
>
> if (busRoute != None):
> if (len(filters) > 0):
> whereSection += "AND "
> whereSection += "routeNumber = :routeNumber "
> filters['routeNumber'] = busRoute.number
>
> if (len(filters) > 0):
> busesDriven = BusTraffic.gql(whereSection + "ORDER BY yearBuilt",
> filters)
>
> Since that does not work as written, is there a way to get filters
> into a format the **kwds varargs param in the prototype above
> expects? Seems like there ought to be, if only I had enough of a
> handle on Python. If not, would it be a useful constructor for the
> AppEngine folks to implement?:
>
> class GqlQuery(query_string, args_dictionary)
>
> My interim solution is to just have a GQL statement for each number of
> bind arguments, which is hacky, but will work for now.
>
> Thanks!
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