Javascript {} is a map/hash table, not a list. It doesn't have an
"order".
If you want the tag, tagname tuples in tag order, you have to put them
in tag order yourself.
Try "for tag, tagname in sorted(tags.itertems()):"
Note that "sorted(tags.iteritems())" sorts the keys in string order,
not numeric order, because the tags are strings, not numbers. ("100"
< "2" even though 100 > 2.)
If you want numeric order, replace "sorted(tags.itertems())" with
something like "sorted([(int(k), v,) for (k,v,) in tags.itertems()])".
On Feb 6, 8:43 am, Dave <[email protected]> wrote:
> Greetings, Hopefully this is something dumb I'm doing but simplejson
> is reording my lists/arrays. Has anyone seen this? Know how to fix?
>
> The scenario is I am placing tags and GLatLngs into db.ListProperties.
> However I've noticed that when written into the table the list is no
> longer in proper order which is a major problem for the GLatLngs....
>
> Specifically what appears to be happening and consistent is passing
> the following json string to simplejson:
>
> "tags": {
> "0": "testtag 0",
> "1": "testtag 1",
> "2": "testtag 2",
> "3": "testtag 3",
> "4": "testtag 4"
> }
>
> I get reordered data back such as:
>
> "tags": {"1":"testtag 1", "0":"testtag 0","3":"testtag 3","2":"testtag
> 2","4":"testtag 4"}
>
> This reordered pattern(1,0,3,2,4...) occurs for everything through
> simplejson. I've checked the input/output and removed simplejson to
> isolate it to simplejson doing the reordering.
>
> Code snippet below:
>
> if request.method == "POST":
> data = request.POST['map']
> json = simplejson.loads(data)
> my_map = Map()
> tags = json['tags']
> for tag, tagname in tags.iteritems():
> my_map.tags.append(tagname)
> my_map.save()
>
> Any help will be greatly appreciated. I'm looking at how to reorder
> data back, but ideally want to stop the json reordering.
>
> thx,
>
> Dave
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