[google-appengine] Re: simplejson reordering data, lists, arrays??????
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 ddev...@gmail.com 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
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en
-~--~~~~--~~--~--~---
[google-appengine] Re: simplejson reordering data, lists, arrays??????
Andy, You are my hero! I can't thank you enough.
Hopefully this helps someone else down the path.
Again, many thanks!
Dave
On Feb 6, 12:50 pm, Andy Freeman ana...@earthlink.net wrote:
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 ddev...@gmail.com 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
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en
-~--~~~~--~~--~--~---
