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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