I'm trying to get a tg (v2.3.4) controller to deal with a json request with
contains (as one of its parameters) a list of objects -- the idea being
that (post validation), I have a variable 'fruit' (see below) as a list of
anonymous hashes.
I want to *avoid* simply passing a string and evaluating this using
json.loads()
I have a straightforward javascripy/jquery function in my template as
follows:
$.ajax({
url: "tmp",
type: 'POST',
dataType: 'json',
data: {
basket_id: 1,
fruit: [{name:'apples', qty: 2},
{name:'bananas', qty: 4},
{name:'oranges', qty: 6}
]
}
}).done(function(resp){
console.log("I'm back...", resp)
});
I have a formencode Schema used for the validation of the controller's
method (in two parts) as follows:
from formencode import validators, Schema, ForEach
class FruitSchema(Schema):
name = validators.String()
qty = validators.Int()
class FruitbowlSchema(Schema):
basket_id = validators.Int()
fruit = ForEach(FruitSchema())
My controller method is as follows:
@expose('json')
@validate(validators=FruitbowlSchema())
def tmp(self, basket_id, fruit):
log.debug("basket_id: %s", basket_id)
log.debug("fruit: %s", fruit)
return dict()
Calling tmp() from the $.ajax I see that (prior to validation) the
following parameters are included in the request:
basket_id=u'1' <type 'unicode'>
fruit[0][qty]=u'2' <type 'unicode'>
fruit[0][name]=u'apples' <type 'unicode'>
fruit[1][qty]=u'4' <type 'unicode'>
fruit[1][name]=u'bananas' <type 'unicode'>
fruit[2][name]=u'oranges' <type 'unicode'>
fruit[2][qty]=u'6' <type 'unicode'>
However, the jquery call is complaining of a 500 error and Turbogears'
debug gives me:
TypeError: tmp() got an unexpected keyword argument 'fruit[2][name]'
My understanding is that @validate with formencode can deal with the single
'fruit' parameter in the controller's method
And I also have a strong suspicion that I've (successfully) accomplished
this before -- -- but can't remember how! -- clearly I'm doing something
wrong here!!
Can anyone help me out... ?
Many thanks,
Rob
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