On Thu, Feb 23, 2012 at 1:01 PM, John Anderson <son...@gmail.com> wrote:
>
>
> On Thu, Feb 23, 2012 at 3:47 AM, tonthon <tontho...@gmail.com> wrote:
>
>> Hi all,
>>
>> I'm looking for some feedback on building a single page app with backbone
>> and pyramid (I'm using Sqlalchemy as ORM).
>>
>> How do you handle Urls on the js side ?
>> How do you handle form submission (I like deform but it doesn't seem to
>> fit my needs here) ?
>>
>> Cheers,
>>
>> Gaston
>>
>>
> For URLs I just define a convention and use that everywhere. But you have
> to tell Pyramid to not handle those requests, so I have the following:
>
> def automore(request, elements, kw):
> # this is for adding the more kwargs for backbone urls
> kw.setdefault('more', ())
> return elements, kw
>
> config.add_route('index', '/*more', pregenerator=automore)
>
>
> This tells pyramid to send all requests to the index route, we do this
> because backbone.js is actually going to handle the routing.
>
> Then for form submission I actually build RESTful webservices in pyramid
> and on form submit I pass my form data to a backbone model and then save
> that out, and use colander to actually validate the data coming in:
>
> map_form_to_model: function(data, model) {
> model.off("change");
>
> for(var i=0; i < data.length; i++) {
> var name = data[i].name;
> var value = data[i].value;
>
> var current_value = model.get(name);
>
> if (value != current_value) {
> model.set(name, value);
> }
> }
> },
>
> save_model: function(e) {
> e.preventDefault();
>
> if (this.model != undefined) {
> var me = this;
>
> var data = me.$("form").serializeArray();
> map_form_to_model(data, me.model);
>
> me.model.save({
> error: function(e) {
> console.log(e);
> }
> })
> }
> },
>
>
>
> and the server side of something like that:
>
> @json_result
> def get_user(self):
> user = None
>
> try:
> pk = self.request.matchdict.get("user_pk")
> user = self.manager.get_by_pk(pk)
> except DataError:
> pass
>
> if not user:
> return HTTPNotFound()
>
> return user.serialize()
>
> @json_result
> def save_user(self):
> data = json.loads(self.request.body)
> schema = ProfileSchema()
>
> try:
> cstruct = schema.deserialize(data)
> except colander.Invalid, e:
> return HTTPBadRequest(e.asdict())
>
> try:
> pk = self.request.matchdict.get("user_pk")
> user = self.manager.get_by_pk(pk)
> except DataError:
> pass
>
> if not user:
> return HTTPNotFound()
>
> map_dict_to_obj(cstruct, user)
>
> self.db.add(user)
>
> return {'success': True}
>
>
>
Also, for security I do everything off an API key and send it with every
ajax request:
$(document).ajaxSend(function(event, xhr, settings) {
var user = EventQ.get_user();
if (user == null) {
return;
}
if (user != undefined || user != 'undefined') {
xhr.setRequestHeader("X-EventQ-Key", user.api_key);
}
});
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