[google-appengine] Re: How to get ReferenceProperty's key without causing a 'get'
Then you can use parent_key() method to access key directly.
On Oct 2, 7:40 pm, yejun <[EMAIL PROTECTED]> wrote:
> I think you shouldn't define a post field in comment at all. Simply
> make post as parent of comment when storing data.
>
> On Oct 2, 6:40 pm, Rafe <[EMAIL PROTECTED]> wrote:
>
> > Folks,
>
> > There have been a number of people asking on the forums what the
> > correct way to get the key of a ReferenceProperty without causing a
> > whole 'get' to the datastore. This can be especially inefficient if
> > you need to iterate over 100 or so values from a query, when all you
> > need is, say, the string version of all of those objects keys.
>
> > Let's look at an example:
>
> > class Post(db.Model):
> > title = db.StringProperty()
> > text = db.StringProperty(multiline=True)
>
> > class Comment(db.Model):
> > text = db.StringProperty()
> > post = db.ReferenceProperty(Post, collection_name='comments')
>
> > Let's say you wanted to generate a list of URLs from all the
> > comments in your system with links to the actual posts. This would be
> > an inefficient way to do this:
>
> > def generate_delete_urls(post):
> > urls = []
> > for comment in post:
> > key = comment.post.key()
> > urls.append('http://myapp.appspot.com/post/%s'%key)
>
> > The problem is that each time you de-reference the 'post' property,
> > it will cause a call to 'get' from the Datastore for information you
> > don't need.
>
> > Here is the correct way to get keys for all the posts:
>
> > def generate_delete_urls(post):
> > urls = []
> > for comment in post:
> > key = Comment.post.get_value_for_datastore(comment)
> > urls.append('http://myapp.appspot.com/post/%s'%key)
>
> > Right now, some folks may be using the protected variables that get
> > stored on the Model instance. This is not a good way to access
> > objects as it could well change in the future. If this happens, your
> > application can break!
>
> > So, to make sure it's clear, let me break it down for you:
>
> > reference_property = Comment.post # Gets actual
> > db.ReferenceProperty object
> > key = reference_property.get_value_for_datastore(instance)
>
> > - Rafe Kaplan
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[google-appengine] Re: Long key_name design question?
ah, sorry for the miscommunication. i wasn't paying attention and thought people were discussing a third-party C-based module. you're right, the built-in modules in that list are definitely supported. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: No Cell Phone
On Fri, Oct 3, 2008 at 11:17 AM, AEL21 <[EMAIL PROTECTED]> wrote: > How can I get this to work without entering a phone number? I don't > have a cell phone so I'm not sure how to get past this. There is no other way at present. Find a friend or family member who can receive the single verification message for you. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] sdk
how to download latest sdk version --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] No Cell Phone
How can I get this to work without entering a phone number? I don't have a cell phone so I'm not sure how to get past this. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Retrieving More than 1000 entities
Theo, that will not work. It will aways get the same 1000..and the only thing offset does is get 1 to 100 or 100 to 200. Tony : Well, i have a simple search http://payrate.appspot.com/infosys_salary This search returns more than 1000 records..who do i show them all ? My page explodes after page 10 Rgds, Venkatesh On Thu, Oct 2, 2008 at 8:04 PM, Tony Arkles <[EMAIL PROTECTED]> wrote: > > Theo, I don't think that will work. From what I understand, the 1000 > entity limit is applied before the offset is considered. > > > > On Oct 2, 8:46 pm, theo <[EMAIL PROTECTED]> wrote: > > It's easy. Just keep on calling .fetch(1000, 1000 * n) where n gets > > incremented every time > > > > On Oct 2, 6:42 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > > > > > The real goal is to figure out how *not* to do that. :) > > > > > What are you trying to accomplish? > > > > > On Oct 2, 6:15 pm, "Venkatesh Rangarajan" > > > > > <[EMAIL PROTECTED]> wrote: > > > > Is it possible to retrieve more than 1000 entities ? > > > > > > Has anyone figured a way to do this ? > > > > > > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Timeout - operation took too long
How can we help for this ?
Each day, I've several Timeout.
Do you still need more info about it (date,time, app_id,...) ?
Regards
On 30 sep, 18:57, johnP <[EMAIL PROTECTED]> wrote:
> For a while today, I started seeing errors in custom form validation.
> Requesting self.instance in ModelForm form resulted in ValueErrors.
> Now, it seems to have recovered a bit...
>
> On Sep 30, 9:43 am, Adam Loving <[EMAIL PROTECTED]> wrote:
>
> > I am seeing the datastoretimeouterror intermittently several times a
> > day (application = toyvirtualgifts) on a fairly simple put operation.
> > Could this be caused by the rest of the request taking too long (like
> > if thetimeoutfor the entire request fires during the put)? It
> > doesn't seem like that would be the case here, but that's the only
> > explanation I can think of.
>
> > File "/base/python_lib/versions/1/google/appengine/ext/db/
> > __init__.py", line 618, in put
> > return datastore.Put(self._entity)
> > File "/base/python_lib/versions/1/google/appengine/api/
> > datastore.py", line 162, in Put
> > raise _ToDatastoreError(err)
> > File "/base/python_lib/versions/1/google/appengine/api/
> > datastore.py", line 1627, in _ToDatastoreError
> > raise errors[err.application_error](err.error_detail)
> >Timeout
>
> > Thanks,
> > Adam
>
> > On Sep 28, 3:19 am, Ronald <[EMAIL PROTECTED]> wrote:
>
> > > Hi,
> > > I don't know how much work has been done on this front, but my app is
> > > still cripple by this issue.
> > > Maybe the amount oftimeouterrors in the log has decrease a little,
> > > but so has the amount of happy users of my site =(
>
> > > /ronald
>
> > > On Sep 19, 9:45 pm, "Marzia Niccolai" <[EMAIL PROTECTED]> wrote:
>
> > > > Hi,
>
> > > > Our engineers are looking in to your reports.
>
> > > > If all of the people experiencing quota issues like this could email me
> > > > directly with your application id, as well as the approximate times
> > > > these
> > > > errors were occurring, that would be helpful!
>
> > > > Thanks,
> > > > Marzia
>
> > > > On Fri, Sep 19, 2008 at 11:17 AM, Michael Bailey <[EMAIL
> > > > PROTECTED]>wrote:
>
> > > > > I got the error below on a app that has almost zero traffic:
> > > > > see screenshot:
> > > > >http://imagebin.ca/img/3rlwzkBy.png
>
> > > > > Traceback (most recent call last):
> > > > > File "/base/python_lib/versions/1/google/appengine/ext/webapp/
> > > > > __init__.py", line 496, in __call__
> > > > >handler.get(*groups)
> > > > > File "/base/data/home/apps/***/1.4/search.py", line 25, in get
> > > > >for kw in kws:
> > > > > File "/base/python_lib/versions/1/google/appengine/ext/db/
> > > > > __init__.py", line 1257, in __iter__
> > > > >return self.run()
> > > > > File "/base/python_lib/versions/1/google/appengine/ext/db/
> > > > > __init__.py", line 1589, in run
> > > > >query_run = self._proto_query.Run(*self._args, **self._kwds)
> > > > > File "/base/python_lib/versions/1/google/appengine/ext/gql/
> > > > > __init__.py", line 572, in Run
> > > > >it = bind_results.Run()
> > > > > File "/base/python_lib/versions/1/google/appengine/ext/gql/
> > > > > __init__.py", line 1211, in Run
> > > > >results.append(bound_query.Run())
> > > > > File "/base/python_lib/versions/1/google/appengine/api/
> > > > > datastore.py", line 860, in Run
> > > > >return self._Run()
> > > > > File "/base/python_lib/versions/1/google/appengine/api/
> > > > > datastore.py", line 879, in _Run
> > > > >apiproxy_stub_map.MakeSyncCall('datastore_v3', 'RunQuery', pb,
> > > > > result)
> > > > > File "/base/python_lib/versions/1/google/appengine/api/
> > > > > apiproxy_stub_map.py", line 46, in MakeSyncCall
> > > > >stub.MakeSyncCall(service, call, request, response)
> > > > > File "/base/python_lib/versions/1/google/appengine/runtime/
> > > > > apiproxy.py", line 246, in MakeSyncCall
> > > > >rpc.CheckSuccess()
> > > > > File "/base/python_lib/versions/1/google/appengine/runtime/
> > > > > apiproxy.py", line 189, in CheckSuccess
> > > > >raise self.exception
> > > > > OverQuotaError: The API call datastore_v3.RunQuery() required more
> > > > > quota than is available.
>
> > > > > On Sep 10, 1:16 pm, Ronald <[EMAIL PROTECTED]> wrote:
> > > > > > Hi,
> > > > > > I'm seeing a number ofTimeouterrors on my log file:
>
> > > > > > Traceback (most recent call last):
> > > > > > File "/base/python_lib/versions/1/google/appengine/ext/webapp/
> > > > > > __init__.py", line 496, in __call__
> > > > > > handler.get(*groups)
> > > > > > File "/base/data/home/apps/40tazo/2.29/index.py", line 46, in get
> > > > > > moves = g.move(card,pickups)
> > > > > > File "/base/data/home/apps/40tazo/2.29/game.py", line 231, in move
> > > > > > self.save()
> > > > > > File "/base/data/home/apps/40tazo/2.29/game.py", line 290, in save
> > > > > > self.g.put()
> > > > > > File "/base/python_lib/versions/1/google/appengine/ext/db/
> > > > > > __init__.py", lin
[google-appengine] Re: Retrieving More than 1000 entities
Theo, I don't think that will work. From what I understand, the 1000 entity limit is applied before the offset is considered. On Oct 2, 8:46 pm, theo <[EMAIL PROTECTED]> wrote: > It's easy. Just keep on calling .fetch(1000, 1000 * n) where n gets > incremented every time > > On Oct 2, 6:42 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > > > The real goal is to figure out how *not* to do that. :) > > > What are you trying to accomplish? > > > On Oct 2, 6:15 pm, "Venkatesh Rangarajan" > > > <[EMAIL PROTECTED]> wrote: > > > Is it possible to retrieve more than 1000 entities ? > > > > Has anyone figured a way to do this ? > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Retrieving More than 1000 entities
It's easy. Just keep on calling .fetch(1000, 1000 * n) where n gets incremented every time On Oct 2, 6:42 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > The real goal is to figure out how *not* to do that. :) > > What are you trying to accomplish? > > On Oct 2, 6:15 pm, "Venkatesh Rangarajan" > > <[EMAIL PROTECTED]> wrote: > > Is it possible to retrieve more than 1000 entities ? > > > Has anyone figured a way to do this ? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: How to get ReferenceProperty's key without causing a 'get'
I think you shouldn't define a post field in comment at all. Simply
make post as parent of comment when storing data.
On Oct 2, 6:40 pm, Rafe <[EMAIL PROTECTED]> wrote:
> Folks,
>
> There have been a number of people asking on the forums what the
> correct way to get the key of a ReferenceProperty without causing a
> whole 'get' to the datastore. This can be especially inefficient if
> you need to iterate over 100 or so values from a query, when all you
> need is, say, the string version of all of those objects keys.
>
> Let's look at an example:
>
> class Post(db.Model):
> title = db.StringProperty()
> text = db.StringProperty(multiline=True)
>
> class Comment(db.Model):
> text = db.StringProperty()
> post = db.ReferenceProperty(Post, collection_name='comments')
>
> Let's say you wanted to generate a list of URLs from all the
> comments in your system with links to the actual posts. This would be
> an inefficient way to do this:
>
> def generate_delete_urls(post):
> urls = []
> for comment in post:
> key = comment.post.key()
> urls.append('http://myapp.appspot.com/post/%s'% key)
>
> The problem is that each time you de-reference the 'post' property,
> it will cause a call to 'get' from the Datastore for information you
> don't need.
>
> Here is the correct way to get keys for all the posts:
>
> def generate_delete_urls(post):
> urls = []
> for comment in post:
> key = Comment.post.get_value_for_datastore(comment)
> urls.append('http://myapp.appspot.com/post/%s'% key)
>
> Right now, some folks may be using the protected variables that get
> stored on the Model instance. This is not a good way to access
> objects as it could well change in the future. If this happens, your
> application can break!
>
> So, to make sure it's clear, let me break it down for you:
>
> reference_property = Comment.post # Gets actual
> db.ReferenceProperty object
> key = reference_property.get_value_for_datastore(instance)
>
> - Rafe Kaplan
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[google-appengine] Re: Retrieving More than 1000 entities
The real goal is to figure out how *not* to do that. :) What are you trying to accomplish? On Oct 2, 6:15 pm, "Venkatesh Rangarajan" <[EMAIL PROTECTED]> wrote: > Is it possible to retrieve more than 1000 entities ? > > Has anyone figured a way to do this ? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
I just tested this on GAE.
import hashlib
hashlib.sha224("Nobody inspects the spammish repetition").hexdigest()
They are working properly.
On Oct 2, 8:14 pm, ryan <[EMAIL PROTECTED]> wrote:
> unfortunately, app engine doesn't support native (ie C-based) python
> modules:
>
> http://code.google.com/appengine/docs/python/purepython.html
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[google-appengine] Retrieving More than 1000 entities
Is it possible to retrieve more than 1000 entities ? Has anyone figured a way to do this ? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
unfortunately, app engine doesn't support native (ie C-based) python modules: http://code.google.com/appengine/docs/python/purepython.html --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Datastore Key IDs
theo is right: only entire keys (ie paths) are guaranteed to be unique. more: http://code.google.com/appengine/docs/datastore/keysandentitygroups.html#Entity_Groups_Ancestors_and_Paths one corollary to this is that ids (and key names) are guaranteed to be unique within all entities of a given kind with the same parent. similarly, ids and key names will be unique within all root entities of a given kind. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Resuming Bulk Upload
All, Thought this will be useful to others. I have modified bulk_upload client to "resume" if it fails. Couple of things 1. On each failure, the bulk upload will wait 1 min before resuming. I found this useful, because my uploads failed because the app was getting overloaded or my WIFI connection was choppy or getting capacity errors. 2. Write the log to a file. So if you happen to close your shell, you can pick up the data count from the log file. 3. SKIP parameter, to skip records before resuming. More here : http://blog.amanthan.com/2008/10/resuming-google-bulk-data-uploader-for.html rgds, Venkatesh --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] How to get ReferenceProperty's key without causing a 'get'
Folks,
There have been a number of people asking on the forums what the
correct way to get the key of a ReferenceProperty without causing a
whole 'get' to the datastore. This can be especially inefficient if
you need to iterate over 100 or so values from a query, when all you
need is, say, the string version of all of those objects keys.
Let's look at an example:
class Post(db.Model):
title = db.StringProperty()
text = db.StringProperty(multiline=True)
class Comment(db.Model):
text = db.StringProperty()
post = db.ReferenceProperty(Post, collection_name='comments')
Let's say you wanted to generate a list of URLs from all the
comments in your system with links to the actual posts. This would be
an inefficient way to do this:
def generate_delete_urls(post):
urls = []
for comment in post:
key = comment.post.key()
urls.append('http://myapp.appspot.com/post/%s' % key)
The problem is that each time you de-reference the 'post' property,
it will cause a call to 'get' from the Datastore for information you
don't need.
Here is the correct way to get keys for all the posts:
def generate_delete_urls(post):
urls = []
for comment in post:
key = Comment.post.get_value_for_datastore(comment)
urls.append('http://myapp.appspot.com/post/%s' % key)
Right now, some folks may be using the protected variables that get
stored on the Model instance. This is not a good way to access
objects as it could well change in the future. If this happens, your
application can break!
So, to make sure it's clear, let me break it down for you:
reference_property = Comment.post # Gets actual
db.ReferenceProperty object
key = reference_property.get_value_for_datastore(instance)
- Rafe Kaplan
--~--~-~--~~~---~--~~
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[google-appengine] Re: ReferenceProperty - id access without fetching the entity
Correction on this post :(
A.C.get_value_for_datastore(a)
It is not necessary to call 'key()' because the object that gets
returns IS the key.
On Oct 2, 3:02 pm, Rafe <[EMAIL PROTECTED]> wrote:
> Mazia is correct, there is no guarantee that this will work. In
> fact, it is very likely it will not work in the future. We may in the
> future implement lazy loading so that you can access the key directly
> without loading the entity (a.C.key()) however, for now, this is
> guaranteed to work:
>
> A.C.get_value_for_datastore(a).key()
>
> On Sep 29, 6:23 pm, Andy Freeman <[EMAIL PROTECTED]> wrote:
>
> > Is there an approved way to copy aReferencePropertyfrom one entity
> > to another without fetching the referred to entity from the datastore?
>
> > In other words,
>
> > class C(db.Model):
> > ...
>
> > class A(db.Model):
> > C = db.ReferenceProperty(reference_class=C)
>
> > class B(db.Model):
> > C = db.ReferenceProperty(reference_class=C)
>
> > a = {some query}
> > b = B()
> > # I would like to do the next assignment without retrieving the
> > relevant entity
> > # from the data store.
> > b.C = a.C
>
> > Yes, I know that a._C.id() can be used to read the id, but that
> > doesn't seem to be part of the documented interface.
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[google-appengine] Re: Long key_name design question?
It's in feb this year. Amazon s3 use hmac-sha1 for request authentication. See the last post for details. http://developer.amazonwebservices.com/connect/thread.jspa?threadID=19714&start=75&tstart=0 On Oct 2, 5:56 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > Ahhh, leveraging the fact that the secure hashes are written in C > would definitely improve things. > > Do you have a link to any info about the S3 hash problem? A quick > search didn't turn anything up. > > On Oct 2, 3:28 pm, yejun <[EMAIL PROTECTED]> wrote: > > > The problem is that a hand written python hash function not likely > > outperform secure hash function implemented in c. > > This kind attack actually happened once on amazon's s3 service, which > > caused about 2 hours partial service interruption. > > > On Oct 2, 4:43 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > > > > I don't think a *secure* hash function is necessary here (nor do I > > > think it desirable, due to speed). By the pigeonhole principle, *all* > > > hashes have collisions; it's just a matter of a) how likely it is to > > > happen, and b) how much of an impact will it have. > > > > For doing a hashtable implementation (which is basically what we're > > > talking about here), it seems to me that it's much more important to > > > have a fast hash than it is to have a secure hash. In theory an > > > attacker could submit a huge pile of specially-constructed URLs that > > > all had the same hash (such that the lookups would be linear instead > > > of constant), but I'm much more concerned about minimizing my CPU > > > burder on all requests :) > > > > On Oct 2, 1:09 pm, yejun <[EMAIL PROTECTED]> wrote: > > > > > On Oct 2, 2:31 pm, Bill <[EMAIL PROTECTED]> wrote: > > > > > > Seems like the SHA hashes are overkill. > > > > > Collisions have been found for both sha0 and md5. > > > > I guess the minimal usable hash function is sha1 for now. In python > > > > hashlib uses openssl which should be reasonable fast. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Python 2.6 Runtime Environment
Python 2.6 and 3.0 will be maintained in parallel for the next couple of years. They will have the same language features except 3.0 will implement a few of them a bit different (e.q. exceptions[only classes] and print[now a function] ). This is done so people have time to make the transition from 2.x to 3.x. Python 2.6 CAN issue warnings for none 3.0 style to help you find the spots needing attention. 2008/10/2 Ovnicraft <[EMAIL PROTECTED]>: > > > 2008/10/2 Nathan <[EMAIL PROTECTED]> >> >> Now that Python 2.6 has reached final release, I am just wondering >> what plans/schedule there is for rolling it on on Google App Engine. > > 2.6 and 3.0 was made almost in parallell maybe wait for 3.0? and testing > changes with 2.6? >> >> >> > > > > -- > [b]question = (to) ? be : !be; .[/b] > > > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Using ReferenceProperty is very(!) slow
Waldemar,
It is not necessary to have a separate Property type for accessing a
model key without loading it from the datastore. You can instead:
class MyModel(db.Model):
my_reference = db.ReferenceProperty()
my_instance = MyModel.all().get()
MyModel.my_reference.get_value_for_datastore(my_instance)
On Sep 13, 4:36 am, Waldemar Kornewald <[EMAIL PROTECTED]> wrote:
> Hi Frank,
> I reordered your mail a little bit.
>
> On Sep 12, 9:26 pm, Frank <[EMAIL PROTECTED]> wrote:
>
> > And the most puzzling is that this is always the same 'oParent' 150
> > times, since I'm listing its children, so I would expect this
> >ReferencePropertyto be cached already.
>
> ReferencePropertyonly caches for a single model, but you have 150
> models, so every child will get() its parent.
>
> > of course I am not talking about accessing theReferenceProperty'sown
> > properties, I am only interested to see if it's None (and I tried with
> > both '==' and 'is'), and also getting its id
> > (self.oParent.key().id()), and doing one or the other gives the same
> > behavior.
>
> As soon as you access oParent it will result in a get().
> Unfortunately, you can't get the key of aReferencePropertywithout
> dereferencing it. Well, there is a hacky solution:
> if self._oParent is None:
> ...
> Note that most properties store their real value in
> "_", but Google might change this any time, so I
> wouldn't use it in an important app.
>
> Instead, I'd suggest you either store the str(key) in a StringProperty
> and manually get() it or you use our KeyReferenceProperty from
> appenginepatch's snippet library. If your parent node model is
> ParentNode you could define this:
>
> parent_key = db.StringProperty()
> parent = KeyReferenceProperty('parent_key', ParentNode,
> use_key_name=False)
>
> The "parent_key" property will store the str(key) of the parent while
> the "parent" property allows to access the parent directly (like
> withReferenceProperty). So, in order to test whether it's None you would
> write:
> if self.parent_key is None:
> ...
> If you want to access the parent model instance you can just write
> self.parent. This separation between key and model instance also makes
> writing transactional code that has to pass around key_names a little
> bit easier.
>
> You can rip out the source
> here:http://trac-hg.assembla.com/appenginepatch/browser/ragendja/dbutils.py
>
> Alternatively, if you use Django you can integrate it with
> appenginepatch and get the whole snippet
> library:http://code.google.com/p/app-engine-patch/
> But then I'd suggest you fetch the most recent source from the
> repository because that contains a few additions like support for
> setting the key via the KeyReferenceProperty (self.parent =
> some_parent_object).
>
> Bye,
> Waldemar Kornewald
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[google-appengine] Re: ReferenceProperty - id access without fetching the entity
Mazia is correct, there is no guarantee that this will work. In
fact, it is very likely it will not work in the future. We may in the
future implement lazy loading so that you can access the key directly
without loading the entity (a.C.key()) however, for now, this is
guaranteed to work:
A.C.get_value_for_datastore(a).key()
On Sep 29, 6:23 pm, Andy Freeman <[EMAIL PROTECTED]> wrote:
> Is there an approved way to copy a ReferenceProperty from one entity
> to another without fetching the referred to entity from the datastore?
>
> In other words,
>
> class C(db.Model):
> ...
>
> class A(db.Model):
> C = db.ReferenceProperty(reference_class=C)
>
> class B(db.Model):
> C = db.ReferenceProperty(reference_class=C)
>
> a = {some query}
> b = B()
> # I would like to do the next assignment without retrieving the
> relevant entity
> # from the data store.
> b.C = a.C
>
> Yes, I know that a._C.id() can be used to read the id, but that
> doesn't seem to be part of the documented interface.
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[google-appengine] Re: Long key_name design question?
Ahhh, leveraging the fact that the secure hashes are written in C would definitely improve things. Do you have a link to any info about the S3 hash problem? A quick search didn't turn anything up. On Oct 2, 3:28 pm, yejun <[EMAIL PROTECTED]> wrote: > The problem is that a hand written python hash function not likely > outperform secure hash function implemented in c. > This kind attack actually happened once on amazon's s3 service, which > caused about 2 hours partial service interruption. > > On Oct 2, 4:43 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > > > I don't think a *secure* hash function is necessary here (nor do I > > think it desirable, due to speed). By the pigeonhole principle, *all* > > hashes have collisions; it's just a matter of a) how likely it is to > > happen, and b) how much of an impact will it have. > > > For doing a hashtable implementation (which is basically what we're > > talking about here), it seems to me that it's much more important to > > have a fast hash than it is to have a secure hash. In theory an > > attacker could submit a huge pile of specially-constructed URLs that > > all had the same hash (such that the lookups would be linear instead > > of constant), but I'm much more concerned about minimizing my CPU > > burder on all requests :) > > > On Oct 2, 1:09 pm, yejun <[EMAIL PROTECTED]> wrote: > > > > On Oct 2, 2:31 pm, Bill <[EMAIL PROTECTED]> wrote: > > > > > Seems like the SHA hashes are overkill. > > > > Collisions have been found for both sha0 and md5. > > > I guess the minimal usable hash function is sha1 for now. In python > > > hashlib uses openssl which should be reasonable fast. > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Timeout consumes a lot of mcycles ?
Hi, I've just added a comment about Timeout in another topic (How to help you for this issue ? If you need more info (date, time,...)) But while looking at my log, I've noticed that all my Timeout have a very very high mcycles (more than 10k) So, I wonder why a Timeout consumes mcycles ? I find this very strange. For me a Timeout should consume near 0 And so I wonder if mcycles is directly linked to time (how long does the request take) ? Thank you for your answer. Regards. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: High CPU warnings on simple PUT with implicit references.
How about your model? What 'shape' is it? Do you have any string
properties that don't need to be indexed?
It does seem quite odd that a simple put like that is getting a
warning though. It basically makes an app useless if that is a proper
recording.
On Oct 2, 2:27 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
wrote:
> I'm trying to build a system where a shopkeeper can list promotional
> items and mark their store on a map, so that anyone searching for
> those items can find a place nearby that has a deal on them. The idea
> is that a shopkeeper has just one store/identity, but they may have
> multiple items, which I want searchable, so I'm using implicit
> references, as it seems like a good way to go.
>
> Here's my code for saving the sale. Ignore all the long/lat stuff;
> that's a different conversation:
>
> class SaveSale(webapp.RequestHandler):
> def get(self):
>
> address = cgi.escape(self.request.get('address'))
> lattitude,longitude =
> cgi.escape(self.request.get('point')).split(',')
> wholeLat,decLat = lattitude.split('.')
> mLat = wholeLat + decLat[0]
> wholeLong,decLong = longitude.split('.')
> mLon = wholeLong + decLong[0]
>
> token = str(mLon)+','+str(mLat)
>
> sale = SaleLocation(longitude = longitude,
> lattitude = lattitude,
> address = address,
> region = token).put()
> SaleItem(salelocation = sale,
> name = 'itemName').put() # hard-coded for now, just for
> testing purposes
>
> self.response.headers['Content-Type'] = 'text/xml'
> self.response.out.write('Sale Saved response>')
>
> If I take out that "SaleItem(...).put()" command, I get a very
> reasonable average CPU reading of something like 300-400. With it in,
> this save action immediately gets a CPU warning with values ranging
> from 800 to well over 1000.
>
> Gets are a lot lighter, so I'm not worried about the overall volume,
> but I'm concerned that something that is ostensibly supported in the
> documentation can't be done without a CPU warning. That warning says
> the code should be optimized, but there's just not that much there to
> optimize.
> I realize that I could put this value in an array within the
> SaleLocation object, or even in a comma delimited string in the
> SaleLocation object, but that defeats the fairly elegant purpose of
> the implicit link between these objects.
>
> Is there a way to do things this way and reduce the CPU impact, or am
> I screwed? Alternately, is the CPU meter screwed, in which case,
> should I plunder forward, assuming it'll be fixed?
>
> Best,
>
> Ben
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[google-appengine] High CPU warnings on simple PUT with implicit references.
I'm trying to build a system where a shopkeeper can list promotional
items and mark their store on a map, so that anyone searching for
those items can find a place nearby that has a deal on them. The idea
is that a shopkeeper has just one store/identity, but they may have
multiple items, which I want searchable, so I'm using implicit
references, as it seems like a good way to go.
Here's my code for saving the sale. Ignore all the long/lat stuff;
that's a different conversation:
class SaveSale(webapp.RequestHandler):
def get(self):
address = cgi.escape(self.request.get('address'))
lattitude,longitude =
cgi.escape(self.request.get('point')).split(',')
wholeLat,decLat = lattitude.split('.')
mLat = wholeLat + decLat[0]
wholeLong,decLong = longitude.split('.')
mLon = wholeLong + decLong[0]
token = str(mLon)+','+str(mLat)
sale = SaleLocation(longitude = longitude,
lattitude = lattitude,
address = address,
region = token).put()
SaleItem(salelocation = sale,
name = 'itemName').put() # hard-coded for now, just for
testing purposes
self.response.headers['Content-Type'] = 'text/xml'
self.response.out.write('Sale Saved')
If I take out that "SaleItem(...).put()" command, I get a very
reasonable average CPU reading of something like 300-400. With it in,
this save action immediately gets a CPU warning with values ranging
from 800 to well over 1000.
Gets are a lot lighter, so I'm not worried about the overall volume,
but I'm concerned that something that is ostensibly supported in the
documentation can't be done without a CPU warning. That warning says
the code should be optimized, but there's just not that much there to
optimize.
I realize that I could put this value in an array within the
SaleLocation object, or even in a comma delimited string in the
SaleLocation object, but that defeats the fairly elegant purpose of
the implicit link between these objects.
Is there a way to do things this way and reduce the CPU impact, or am
I screwed? Alternately, is the CPU meter screwed, in which case,
should I plunder forward, assuming it'll be fixed?
Best,
Ben
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[google-appengine] Re: Long key_name design question?
The problem is that a hand written python hash function not likely outperform secure hash function implemented in c. This kind attack actually happened once on amazon's s3 service, which caused about 2 hours partial service interruption. On Oct 2, 4:43 pm, Tony Arkles <[EMAIL PROTECTED]> wrote: > I don't think a *secure* hash function is necessary here (nor do I > think it desirable, due to speed). By the pigeonhole principle, *all* > hashes have collisions; it's just a matter of a) how likely it is to > happen, and b) how much of an impact will it have. > > For doing a hashtable implementation (which is basically what we're > talking about here), it seems to me that it's much more important to > have a fast hash than it is to have a secure hash. In theory an > attacker could submit a huge pile of specially-constructed URLs that > all had the same hash (such that the lookups would be linear instead > of constant), but I'm much more concerned about minimizing my CPU > burder on all requests :) > > On Oct 2, 1:09 pm, yejun <[EMAIL PROTECTED]> wrote: > > > On Oct 2, 2:31 pm, Bill <[EMAIL PROTECTED]> wrote: > > > > Seems like the SHA hashes are overkill. > > > Collisions have been found for both sha0 and md5. > > I guess the minimal usable hash function is sha1 for now. In python > > hashlib uses openssl which should be reasonable fast. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: from . import module
Also, make sure all of your directories contain an __init__.py file. -Marzia On Thu, Oct 2, 2008 at 6:09 AM, Tony Arkles <[EMAIL PROTECTED]> wrote: > > Can you please post the directory structure and the goal? > > > > On Oct 2, 1:48 am, James <[EMAIL PROTECTED]> wrote: > > From a child directory, why can't a module in a parent or sibling > > directory be imported? > > > > Am I mistaken, or is this prohibited? (not using Django, just > > webapp) > > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Python Support
Wouldn't Python 3 support be possible without breaking any code by simply requiring developers to change their app.yaml to include: runtime: python3 That, I assume, is the use of the runtime parameter? Python 2.6 will be good too, but I would especially love to see Python 3 when it's released. Can anyone from Google give any information about this please? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Any Site in Production Use ?
> nope ... it seems is using AWS now! I met BuddyPoke's creator a week or so ago. He was very happy with App Engine and said how great it was to handle his significant load. If you are seeing AWS, it's probably static flash files being served off Amazon S3. Let me know if that's incorrect. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
I don't think a *secure* hash function is necessary here (nor do I think it desirable, due to speed). By the pigeonhole principle, *all* hashes have collisions; it's just a matter of a) how likely it is to happen, and b) how much of an impact will it have. For doing a hashtable implementation (which is basically what we're talking about here), it seems to me that it's much more important to have a fast hash than it is to have a secure hash. In theory an attacker could submit a huge pile of specially-constructed URLs that all had the same hash (such that the lookups would be linear instead of constant), but I'm much more concerned about minimizing my CPU burder on all requests :) On Oct 2, 1:09 pm, yejun <[EMAIL PROTECTED]> wrote: > On Oct 2, 2:31 pm, Bill <[EMAIL PROTECTED]> wrote: > > > Seems like the SHA hashes are overkill. > > Collisions have been found for both sha0 and md5. > I guess the minimal usable hash function is sha1 for now. In python > hashlib uses openssl which should be reasonable fast. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Contract development for an application?
Hi, I'm using Elance for hiring contractors (both software developers and copywriters). Recently I outsourced a small GAE project. There were two providers Iliked: http://www.elance.com/php/profile/main/eolproviderprofile.php?view_person=fidlej&rid=1A6T4 http://www.elance.com/php/profile/main/eolproviderprofile.php?view_person=vitaliyk&rid=1A6T4 The first one I choose and the second I'm going to try next time as he provided demo of what i required for free but later when I laready awarded the project. I was very happy with timeline/price/quality of job done (gallery usign Flickr API). Hope that helps. -- Alexander Trakhimenok http://sharp-developer.net/CV/ On Oct 1, 1:39 pm, Mark From Dallas <[EMAIL PROTECTED]> wrote: > Can anyone recommend a great location where I can post notice of a > development job to convert a simple online database app (mysql, php, > html) to run on the App Engine? > > I have a job open on RentACoder for the work but I would like to get > spread the word among App Engine developers as well. > > Thanks. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
On Oct 2, 2:31 pm, Bill <[EMAIL PROTECTED]> wrote: > Seems like the SHA hashes are overkill. Collisions have been found for both sha0 and md5. I guess the minimal usable hash function is sha1 for now. In python hashlib uses openssl which should be reasonable fast. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Is there anyway of getting the dimensions of an image?
With python code! http://www.google.com/search?q=image+dimensions+pure+python On Thu, Oct 2, 2008 at 9:41 AM, acuth <[EMAIL PROTECTED]> wrote: > > Hi, > > I want to generate a 20x20 image out of an uploaded image. Using the > image API I can resize it to 20x20 but for non-square input images I > get a smaller image. For example a 100x50 image would come back as a > 20x10 image. The crop() method would allow me to extract a square > image but to generate the input parameters - left_x=0.25, top_y=1.0, > right_x=0.75, bottom_y=0.0 - I need to know the image dimensions. > > Any thoughts/advice would be gratefully received, Adrian > > > > -- Barry - www.nearby.org.uk - www.geograph.org.uk - --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Any Site in Production Use ?
nope ... it seems is using AWS now! On Wed, Oct 1, 2008 at 8:32 AM, Bill <[EMAIL PROTECTED]> wrote: > > I know buddypoke.com is using AppEngine. It's a fairly successful app > under heavy load. (I want to say hundreds of requests per second but > can't say my memory is correct there.) > > On Sep 30, 2:21 am, "Feris Thia" <[EMAIL PROTECTED]> wrote: > > Hi All, > > > > I understand that GAE is still in preview used only, but I just wonder if > > anyone has used it in any semi or full production ? And with how many > page > > hits / visitors per day ? > > > > -- > > Thanks & Best Regards, > > > > Feris Thia > > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
Yeah, it's tough either way. I'm fine with just discarding urls that exceed 500 characters (that was my first solution), although I agree that the key space is probably large enough that hash collisions would be highly unlikely. On Oct 2, 12:31 pm, Bill <[EMAIL PROTECTED]> wrote: > > Then I think your only solution is to do it yourself (the > > "tinyurl" service), assuring uniqueness. Basically, you "only" need to > > mix datastore simple Gets with hashtable behaviour (taking care and > > assuming that two different urls, despite rare, can result in the same > > hash key). You need to query by hash key and then, among the results, > > look for the matching url. Most of the time (depending on the url->key > > algorithm) you should get few results, so overhead won't be a problem. > > The above assumes that there'll be collisions when you map from urls > to the key name. I might naively assume that with a large enough key > space (500 characters), you should be able to find a hashing function > that'll pretty much guarantee unique keys to be generated. > > My first question, though, would be if the urls that are greater than > 500 characters can be truncated or simply not permitted. When I've > seen really long urls on previous apps, they've been attacks by bots > or urls with all kinds of state information. You could impose a > restriction on submitted URLs and I think a very small % of URLs would > trip it. Anyone know stats of valid URLs by length? > > Since I also plan on implementing a Digg-like function on one of my > websites, I'm interested in good hashing functions that let you > produce a reasonably sized hash (less than 500 char) efficiently. > Seems like the SHA hashes are overkill. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Is there anyway of getting the dimensions of an image?
I now see that this specific issue has been raised as http://code.google.com/p/googleappengine/issues/detail?id=435 and that somebody was good enough to supply precisely the relevant code at http://groups.google.com/group/google-appengine/browse_thread/thread/cd287afcdf4cf976/388c5be1a22747fe?lnk=gst&q=image+width#388c5be1a22747fe --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Is there anyway of getting the dimensions of an image?
Hi, I want to generate a 20x20 image out of an uploaded image. Using the image API I can resize it to 20x20 but for non-square input images I get a smaller image. For example a 100x50 image would come back as a 20x10 image. The crop() method would allow me to extract a square image but to generate the input parameters - left_x=0.25, top_y=1.0, right_x=0.75, bottom_y=0.0 - I need to know the image dimensions. Any thoughts/advice would be gratefully received, Adrian --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
> Then I think your only solution is to do it yourself (the > "tinyurl" service), assuring uniqueness. Basically, you "only" need to > mix datastore simple Gets with hashtable behaviour (taking care and > assuming that two different urls, despite rare, can result in the same > hash key). You need to query by hash key and then, among the results, > look for the matching url. Most of the time (depending on the url->key > algorithm) you should get few results, so overhead won't be a problem. The above assumes that there'll be collisions when you map from urls to the key name. I might naively assume that with a large enough key space (500 characters), you should be able to find a hashing function that'll pretty much guarantee unique keys to be generated. My first question, though, would be if the urls that are greater than 500 characters can be truncated or simply not permitted. When I've seen really long urls on previous apps, they've been attacks by bots or urls with all kinds of state information. You could impose a restriction on submitted URLs and I think a very small % of URLs would trip it. Anyone know stats of valid URLs by length? Since I also plan on implementing a Digg-like function on one of my websites, I'm interested in good hashing functions that let you produce a reasonably sized hash (less than 500 char) efficiently. Seems like the SHA hashes are overkill. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Python Support
On Oct 2, 2:53 pm, Sal <[EMAIL PROTECTED]> wrote: > Will GAE be supporting Python versions 2.6 and/or 3.0? I believe the developers have stated that 3.0 support is unlikely since it's not backwards-compatible and would break existing code that works now. There's been no timeline posted for 2.6 support (or, really, for much of anything), but personally I'd expect to see it sometime in the future as I believe it is fully backwards-compatible. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Python Support
Will GAE be supporting Python versions 2.6 and/or 3.0? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Any Site in Production Use ?
> I get on the order of 100 bogus high CPU warnings per day in my error > log. They tend to come in clusters of 4 or 5 within a few seconds, so > it's clearly some issue on Google's end (these are simple datastore > GETs by key, and they timeout after 10,000 megacycles or so). They've > never been a threat to my quota, so I don't worry about them. How do you handle the datastore get failures? I'm concerned about the .01% failure rate mentioned in another thread, because I'm thinking this is behavior that's not just preview mode but something that should be expected for datastore access. If so, can we issue temporary redirects back to the same URL in the case of failure for idempotent actions? Or are folks just assuming some very small percentage of requests fail? (I'm thinking of handling it on the client side with AJAX or Flash, where the client either informs the user or reissues a request.) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Datastore: Query for .key does not work
Hi,
I'm not sure exactly your use case, so I'm just going to describe in general
what I might do in a similar situation.
Say I have a list of keys for a picture model, and I want to render that
picture on my HTML page. So, let's assume these are my models:
class FirstModel(db.Model)
my_pics = ListProperty(db.Keys)
class MyPic(db.Model)
picture = BlobProperty()
Assume I've have an instance of FirstModel, my_model, and I want to
construct links to images for my HTML template. I'd do something like this:
for picture_key in my_model.my_pics:
image_links.append('' % str(picture_key))
The I would have an Image request handler that was something along the lines
of:
class Image(webapp.RequestHandler):
def get(self):
img_key = self.request.get('key')
img = MyPic.get(img_key)
self.response.headers['Content-Type'] = 'image/jpg'
self.response.out.write(img.picture)
Obviously this is not production ready code, but you get the idea...
-Marzia
On Thu, Oct 2, 2008 at 4:03 AM, Nate Dog <[EMAIL PROTECTED]> wrote:
>
> Hi Mariza,
>
> ive been having the same issue as ARMIX,
>
> my question is i have a page model one of the page models propertys is
> a field called pics which is a list property
> im storing a list ok keys from a photo model ... the idea is page has
> a number of photos.
>
> from what your saying i think ill need to loop through my list and do
> a new query per list item as oposed to using the GQL IN syntax to try
> and match the photo model's key with my list of keys from my page.pics
> property
>
> is that correct or is there a way to use a Kinds/Models key in GQL ?
>
> On Aug 23, 2:55 am, "Marzia Niccolai" <[EMAIL PROTECTED]> wrote:
> > Hi Armin,
> > You can't query for the key, there is really no need. If you know the
> key
> > for the entity you want just do:
> >
> > entity = MyModel.get(key)
> >
> > Thats all there is to it.
> >
> > -Marzia
> >
> > On Fri, Aug 22, 2008 at 7:43 AM, ARMIX <[EMAIL PROTECTED]> wrote:
> >
> > > Hi,
> >
> > > I'm new to App Engine, new to python and have some problems with the
> > > datastore. :)
> > > I'd like to query a record from the Datastore where the field "user" =
> > > users.get_current_user() and the field "key" =
> > > "agNhd25yCgsSBE5vdGUYBww"
> > > ... so the Query looks like:
> > > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1 AND key = :2
> > > LIMIT 1", users.get_current_user(), key)
> > > ...but that doesn't work.
> >
> > > If I submit the same query without the "AND key = :2" it works fine.
> > > It seems that it is not possible to query for the entity key? Is that
> > > right? And if yes, how can I get the requested record?
> >
> > > Until now I tried the following queries without success:
> > > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1 AND key = :2
> > > LIMIT 1", users.get_current_user(), key)
> > > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1 AND id = :2
> > > LIMIT 1", users.get_current_user(), "7")
> > > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1",
> > > users.get_current_user())
> > > notes = Note.get_by_key_name(key)
> > > notes = Note.get(db.key.from_path('Note', key)
> > > notes = Note.get_by_key_name("agNhd25yCgsSBE5vdGUYBww")
> > > notes = db.get("agNhd25yCgsSBE5vdGUYBww")
> >
> > > Sometimes I got the following error: 'Note' object is not iterable
> >
> > > The class "Note":
> > > class Note(db.Model):
> >
> > > user = db.UserProperty()
> >
> > > subj = db.StringProperty(multiline=False)
> >
> > > text = db.StringProperty(multiline=True)
> >
> > > tscrt = db.DateTimeProperty(auto_now_add=True)
> >
> > > tschg = db.DateTimeProperty(auto_now=True)
> >
> > > Can anybody help me please?
> >
> > > Thanks,
> > > Armin
> >
> >
> >
>
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[google-appengine] Re: Is there anyway of getting the dimensions of an image?
I guess I had assumed that the Image API already had the necessary functionality and that I just hadn't found it yet. Obviously it's a very small subset of PIL functionality, which people have been asking for since issue 38 - http://code.google.com/p/googleappengine/issues/detail?id=38 --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Did Something Change Since Yesterday which now Requires Additional Indexes?
Hi, There should not have been a change yesterday that would have affected needing new indexes, but there are rare cases when built in indexes are not sufficient to run queries, and usually the correct index for the query will be suggested in the error. If you could reply directly to me with the app id experiencing this issue, the query that you are attempting to run, and the suggested index, I'd be happy to help you troubleshoot the issue. Thanks, Marzia On Thu, Oct 2, 2008 at 12:32 AM, gg <[EMAIL PROTECTED]> wrote: > > Now I am totally hosed. Tried to add the needed index (which seemed to > be in the new 1.1.4 format and I am running 1.1.1) it caused an error. > I vacuumed the indexes and tried to regenerate. When I do ALL indexes > now do not rebuild and show in error status?? What is up with > that? > > On Oct 2, 12:07 am, gg <[EMAIL PROTECTED]> wrote: > > As stated in the title: > > > > Did Something Change Since Yesterday which would now Requires > > Additional Indexes? > > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Any Site in Production Use ?
On Oct 2, 2:59 am, Bill <[EMAIL PROTECTED]> wrote: > Feris, Wordle.net is Jonathan's site so I don't have any info other > than looking at the web pages. It looks the image thumbnails are > image blobs stored in datastore and the java applet displays graphics > on individual gallery pages. Correct. Thumbnails are little (~15K) blobs, and the saved Wordle state is about 3K, which is then rendered by the applet. > So he'd have at least one intensive > request when doing the thumbnail processing and image put. No, the applet generates the thumbnail and POSTs it as an opaque binary blob. There's no processing to speak of on the server side. > There's no tagging or join models from what I can see, so his gallery page GET > should be reasonably fast. Yes. I get on the order of 100 bogus high CPU warnings per day in my error log. They tend to come in clusters of 4 or 5 within a few seconds, so it's clearly some issue on Google's end (these are simple datastore GETs by key, and they timeout after 10,000 megacycles or so). They've never been a threat to my quota, so I don't worry about them. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Python 2.6 Runtime Environment
2008/10/2 Nathan <[EMAIL PROTECTED]> > > Now that Python 2.6 has reached final release, I am just wondering > what plans/schedule there is for rolling it on on Google App Engine. 2.6 and 3.0 was made almost in parallell maybe wait for 3.0? and testing changes with 2.6? > > > > > -- [b]question = (to) ? be : !be; .[/b] --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
Ahhh... sigh. :) I was hoping to avoid doing that. It certainly adds a layer of complexity that I was hoping to avoid. On Oct 2, 10:49 am, "José Oliver Segura" <[EMAIL PROTECTED]> wrote: > 2008/10/2 Tony Arkles <[EMAIL PROTECTED]>: > > > > > I don't think that'll help. :( > > > I'm trying to ensure uniqueness... so if two people try to add the > > same URL, there will only be one entry in the datastore. I don't > > think there's any guarantee that tinyurl/etc would provide that > > uniqueness constraint. > > > Also, there will be a pretty decent volume of lookups going on, and > > routing every request through tinyurl won't win me any friends :) > > Then I think your only solution is to do it yourself (the > "tinyurl" service), assuring uniqueness. Basically, you "only" need to > mix datastore simple Gets with hashtable behaviour (taking care and > assuming that two different urls, despite rare, can result in the same > hash key). You need to query by hash key and then, among the results, > look for the matching url. Most of the time (depending on the url->key > algorithm) you should get few results, so overhead won't be a problem. > > Best, > Jose --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: undocumented size cap on memcache entries
1 MB seems the magic number for GAE currently. Blobs, requests, responses, memcache entries, app files all has to be <= 1 MB. On Oct 2, 2:02 am, Mahmoud <[EMAIL PROTECTED]> wrote: > Just a heads up, in case you get bit by this like we did: > > It seems that there is an undocumented size cap of 1 MB on memcache > entries. Our application caches a list of entities with a thumbnail > BlobProperty, and we weren't putting memcache.set() in a try/catch > block. It turns out, that it stopped working after a while, with the > following error in the logs: > > """ > File "/base/python_lib/versions/1/google/appengine/api/memcache/ > __init__.py", line 539, in set > return self._set_with_policy(MemcacheSetRequest.SET, key, value, > time=time) > File "/base/python_lib/versions/1/google/appengine/api/memcache/ > __init__.py", line 602, in _set_with_policy > stored_value, flags = _validate_encode_value(value, > self._do_pickle) > File "/base/python_lib/versions/1/google/appengine/api/memcache/ > __init__.py", line 176, in _validate_encode_value > 'received %d bytes' % (MAX_VALUE_SIZE, len(stored_value))) > ValueError: Values may not be more than 100 bytes in length; > received 1000685 bytes > """ > > I guess we'll have to make those thumbnails into ReferenceProperties, > put them in their own entities and memcache them separately. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
Maybe,your should have a look at the project calling "appengine- utitlies" http://code.google.com/p/appengine-utitlies/ >> >> >> These are a collection of classes to be used for rapid development >> using Google App Engine. >> >> This starts with the session class which Joe Bowman wrote for a >> project he was working on and gave to the community because there >> seemed to be some demand for it. Any new classes will probably be a >> result of packages created for other projects, bundled inside this >> utilities module. This is a very loose project with developers >> encouraged to work and release their own modules independent of >> each other. >> >> Please check the Wiki and use the Issue Tracker. There's a link to >> the google groups discussion forum for this project in the links on >> the right. >> >> Current classes are: session.py - Used for session handling within >> a website, using the datastore as a backend. Only stores a session >> id in the browser, all other information is kept in the datastore. >> Supports customizable cookie paths and session expiration time. > 在 2008-10-3，上午12:42， Tony Arkles 写道： > > I don't think that'll help. :( > > I'm trying to ensure uniqueness... so if two people try to add the > same URL, there will only be one entry in the datastore. I don't > think there's any guarantee that tinyurl/etc would provide that > uniqueness constraint. > > Also, there will be a pretty decent volume of lookups going on, and > routing every request through tinyurl won't win me any friends :) > > > On Oct 2, 10:34 am, Gmail <[EMAIL PROTECTED]> wrote: >> Maybe,You Can try to short the URI by some service like this one; >> >>> Short URL is a Wordpress plugin that allows you to take a long URL >>> such as: >> >>> http://www.harleyquine.com/downloads/php-scripts/somefile.zip >> >>> and turn it into: >>> http://www.harleyquine.com/u/1 >> >> there are lots of this kind of services. >> >> 在 2008-10-2，下午11:55， Tony Arkles 写道： >> >> >> >>> Hi everyone, >> >>> I'm running into a bit of a snag, and I'm hoping that someone >>> might be >>> able to offer some suggestions. >> >>> I've got a Kind that is keeping track of information about URLs >>> (ratings, summary, etc). At first glance, it seems natural to key >>> Entities based on the full URL -- this will ensure that there is >>> only >>> ever one entry for each URL. get_or_insert() works awesome for >>> this. >> >>> This design was working great until yesterday, when I hit a URL that >>> was longer than 500 characters (egads!). >> >>> Now I don't know what to do! I want to ensure uniqueness on a per- >>> URL >>> basis, but it doesn't look like I can use it as a key anymore. >>> Since >>> you can't do queries within transactions, I'm at a loss for how to >>> do >>> this... >> >>> Any thoughts? >> >>> Cheers >>> Tony >> >> > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
2008/10/2 Tony Arkles <[EMAIL PROTECTED]>: > > I don't think that'll help. :( > > I'm trying to ensure uniqueness... so if two people try to add the > same URL, there will only be one entry in the datastore. I don't > think there's any guarantee that tinyurl/etc would provide that > uniqueness constraint. > > Also, there will be a pretty decent volume of lookups going on, and > routing every request through tinyurl won't win me any friends :) Then I think your only solution is to do it yourself (the "tinyurl" service), assuring uniqueness. Basically, you "only" need to mix datastore simple Gets with hashtable behaviour (taking care and assuming that two different urls, despite rare, can result in the same hash key). You need to query by hash key and then, among the results, look for the matching url. Most of the time (depending on the url->key algorithm) you should get few results, so overhead won't be a problem. Best, Jose --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
I don't think that'll help. :( I'm trying to ensure uniqueness... so if two people try to add the same URL, there will only be one entry in the datastore. I don't think there's any guarantee that tinyurl/etc would provide that uniqueness constraint. Also, there will be a pretty decent volume of lookups going on, and routing every request through tinyurl won't win me any friends :) On Oct 2, 10:34 am, Gmail <[EMAIL PROTECTED]> wrote: > Maybe,You Can try to short the URI by some service like this one; > > > Short URL is a Wordpress plugin that allows you to take a long URL > > such as: > > >http://www.harleyquine.com/downloads/php-scripts/somefile.zip > > > and turn it into: > >http://www.harleyquine.com/u/1 > > there are lots of this kind of services. > > 在 2008-10-2，下午11:55， Tony Arkles 写道： > > > > > Hi everyone, > > > I'm running into a bit of a snag, and I'm hoping that someone might be > > able to offer some suggestions. > > > I've got a Kind that is keeping track of information about URLs > > (ratings, summary, etc). At first glance, it seems natural to key > > Entities based on the full URL -- this will ensure that there is only > > ever one entry for each URL. get_or_insert() works awesome for this. > > > This design was working great until yesterday, when I hit a URL that > > was longer than 500 characters (egads!). > > > Now I don't know what to do! I want to ensure uniqueness on a per-URL > > basis, but it doesn't look like I can use it as a key anymore. Since > > you can't do queries within transactions, I'm at a loss for how to do > > this... > > > Any thoughts? > > > Cheers > > Tony > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Python 2.6 Runtime Environment
Now that Python 2.6 has reached final release, I am just wondering what plans/schedule there is for rolling it on on Google App Engine. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Long key_name design question?
Maybe,You Can try to short the URI by some service like this one; > Short URL is a Wordpress plugin that allows you to take a long URL > such as: > > http://www.harleyquine.com/downloads/php-scripts/somefile.zip > > and turn it into: > http://www.harleyquine.com/u/1 there are lots of this kind of services. 在 2008-10-2，下午11:55， Tony Arkles 写道： > > Hi everyone, > > I'm running into a bit of a snag, and I'm hoping that someone might be > able to offer some suggestions. > > I've got a Kind that is keeping track of information about URLs > (ratings, summary, etc). At first glance, it seems natural to key > Entities based on the full URL -- this will ensure that there is only > ever one entry for each URL. get_or_insert() works awesome for this. > > This design was working great until yesterday, when I hit a URL that > was longer than 500 characters (egads!). > > Now I don't know what to do! I want to ensure uniqueness on a per-URL > basis, but it doesn't look like I can use it as a key anymore. Since > you can't do queries within transactions, I'm at a loss for how to do > this... > > Any thoughts? > > Cheers > Tony > > > --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: unsupported operand type(s) for +=: 'NoneType' and 'int'
On Thu, Oct 2, 2008 at 8:31 AM, GMan <[EMAIL PROTECTED]> wrote: > > I am scratching my head at this seemingly simple problem. All I want > to do is: > 1) Take the value of a db.IntegerProperty > 2) increment it using a local variable > 3) Save the local variable back to the IntegerProperty > > class IncrementHolder: > counter = db.IntegerProperty() > > > class UserOfIncrementHolder: > def doSomething(self): > incrementQueryResult = IncrementHolder.all() #assume there is > only one of these > > incrementHolderObj = incrementQueryResult.get() > > currCountValue = incrementHolderObj.counter > > currCountValue += 1 ## This is where the error occurs !! I guess you're geting a None value assigned to incrementHolderObj.counter, and adding a NoneType with an Int seems not to be allowed by python (though I'm not an expert). Why don't you try to check for None before? if currCountValue is None: currCountValue = 1 else currCountValue += 1 hope that helps. Best, Jose --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Upgrade to GoogleAppEngineLauncher 1.1.4 breaks apps running on 1.1.3
I have exactly the same problem. Mac OSX 10.5/Update of the launcher from 1.1.3. to 1.1.4 (automatic update). As additional info I can redirect to generic urls (random web sites) - I get this error when using a url generated like this: client = gdata.service.GDataService() gdata.alt.appengine.run_on_appengine(client) authUrl = client.GenerateAuthSubURL(self.request.url, scope, secure=False, session=True) self.redirect(authUrl) Any hints would be appreciated! Cheers --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] unsupported operand type(s) for +=: 'NoneType' and 'int'
I am scratching my head at this seemingly simple problem. All I want to do is: 1) Take the value of a db.IntegerProperty 2) increment it using a local variable 3) Save the local variable back to the IntegerProperty class IncrementHolder: counter = db.IntegerProperty() class UserOfIncrementHolder: def doSomething(self): incrementQueryResult = IncrementHolder.all() #assume there is only one of these incrementHolderObj = incrementQueryResult.get() currCountValue = incrementHolderObj.counter currCountValue += 1 ## This is where the error occurs !! incrementHolderObj.put() ... On the error line, i have already tried the following int(currCountValue) without success. What gives??? Thanks --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] GData Calendar 501 Error
I'm trying to use the the GData Python library to create a calendar
for a user. The logon (client based) works, getting the calendar feed
works, but then the code chokes on the InsertCalendar call. Here is
the snippet:
# Check for the master Google calendar, if not present create
one
calendar_service = gdata.calendar.service.CalendarService()
gdata.alt.appengine.run_on_appengine(calendar_service)
calendar_service.email = g_user
calendar_service.password = g_pass
calendar_service.source = GOOGLE_DICT['api-source']
calendar_service.ProgrammaticLogin()
logging.info(calendar_service.GetClientLoginToken())<
things are okay here
# Create the default calendar, if it is not there
feed = calendar_service.GetOwnCalendarsFeed()
logging.info('Obtained a feed: ' + feed.title.text)<
things are okay here
if 'mydefault' not in ( c.title.text for c in feed.entry ):
logging.info('Default calendar not found, creating!')
calendar = gdata.calendar.CalendarListEntry()
calendar.title = atom.Title(text='mydefault')
new_calendar =
calendar_service.InsertCalendar(new_calendar=calendar)< Bombs
here!
logging.info(new_calendar.title)
The insert bombs with a 501 from the Googles :
File "C:\Program Files\Google\google_appengine\academic\admin.py",
line 92, in post
new_calendar =
calendar_service.InsertCalendar(new_calendar=calendar)
File "C:\Program Files\Google\google_appengine\academic\gdata
\calendar\service.py", line 197, in InsertCalendar
converter=gdata.calendar.CalendarListEntryFromString)
File "C:\Program Files\Google\google_appengine\academic\gdata
\service.py", line 831, in Post
media_source=media_source, converter=converter)
File "C:\Program Files\Google\google_appengine\academic\gdata
\service.py", line 951, in PostOrPut
'reason': server_response.reason, 'body': result_body}
RequestError: {'status': 501, 'body': '\n\n\n\n501
Not Implemented\
I am using the latest iterations of GAE and the Python lib (Local Dev
1.1.4 and GData Python 1.2.1).
I added the following at the top of my file just after my imports, but
to no avail:
gdata.service.http_request_handler = gdata.urlfetch
Any ideas / suggestions?
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[google-appengine] May I sign up an app engine?
Hi, I'm from Mainland China, I need to sign up an appengine account, but seems China Mobile is not supported in the list. However, I saw a post that some guy like me has successfully signed up an appengine, so I want know may I create my app engine? Please reply to me, thank you very much! --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Using Picasa with Appengine
I would like to allow users to put images in to forum posts, but host the images in their picasa accounts. Is this possible currently, or would they have to paste a picasa url just like anywhere else they might use picasa to host a picture? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Error Message while browsing the Apps
Hi, I am not a developer of any app, but, i am a keen follower. Lately when I browse the various apps lists, I constantly get a message that reads as below: Traceback (most recent call last): File "/base/python_lib/versions/1/google/appengine/ext/webapp/ __init__.py", line 499, in __call__ handler.get(*groups) File "/base/data/home/apps/appgallery/3.11/appgallery.py", line 397, in get total = query.Count() File "/base/python_lib/versions/1/google/appengine/api/ datastore.py", line 960, in Count raise _ToDatastoreError(err) File "/base/python_lib/versions/1/google/appengine/api/ datastore.py", line 1627, in _ToDatastoreError raise errors[err.application_error](err.error_detail) Timeout: datastore timeout: operation took too long. Not, I dont really understand what this means, but its hard to imagine a Google service going into Timeout. maybe there is some coding error or something. Maybe I am the only one receiving this message. I am posting this here as I wasnt sure whom to contact regarding this, and thought guys who read this would know what action to take. Good Luck with the Development, the apps are looking great! --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Long key_name design question?
Hi everyone, I'm running into a bit of a snag, and I'm hoping that someone might be able to offer some suggestions. I've got a Kind that is keeping track of information about URLs (ratings, summary, etc). At first glance, it seems natural to key Entities based on the full URL -- this will ensure that there is only ever one entry for each URL. get_or_insert() works awesome for this. This design was working great until yesterday, when I hit a URL that was longer than 500 characters (egads!). Now I don't know what to do! I want to ensure uniqueness on a per-URL basis, but it doesn't look like I can use it as a key anymore. Since you can't do queries within transactions, I'm at a loss for how to do this... Any thoughts? Cheers Tony --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: How count() works?
Thanks On 2 Жов, 14:02, Alexander Kojevnikov <[EMAIL PROTECTED]> wrote: > Микола, count just iterates on the results locally, it's only a little > bit more efficient than querying and then iterating; and also has the > same limits as other requests (max 1000 entities): > > http://code.google.com/appengine/docs/datastore/queryclass.html#Query... > > On Oct 2, 8:10 pm, Микола <[EMAIL PROTECTED]> wrote: > > > Hi. I want to know if query executed when i call count(). And is > > count() executed efficiently? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: undocumented size cap on memcache entries
> > It seems that there is an undocumented size cap of 1 MB on memcache > > entries. Our application caches a list of entities with a thumbnail > > BlobProperty, and we weren't putting memcache.set() in a try/catch > > block. It turns out, that it stopped working after a while, with the > > following error in the logs: Hmm. It seems that the size limit might actually be dictated by the memcached protocol. See: http://www.socialtext.net/memcached/index.cgi?faq --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: from . import module
Can you please post the directory structure and the goal? On Oct 2, 1:48 am, James <[EMAIL PROTECTED]> wrote: > From a child directory, why can't a module in a parent or sibling > directory be imported? > > Am I mistaken, or is this prohibited? (not using Django, just > webapp) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] ZipServe no module called Utils
I am trying to serve files from a zip file using the new ZipServe module in SDK 1.1.4 using Python 2.5.2 under Windows XP. My app.yaml contains the line: - url: /js/dojo/.* script: $PYTHON_LIB/google/appengine/ext/zipserve When running the app I am receiving the folowing error message: ERROR2008-10-02 11:54:51,546 dev_appserver.py] Exception encountered handling request Traceback (most recent call last): File "C:\Program Files\Google\google_appengine\google\appengine\tools \dev_appserver.py", line 2411, in _HandleRequest base_env_dict=env_dict) File "C:\Program Files\Google\google_appengine\google\appengine\tools \dev_appserver.py", line 348, in Dispatch base_env_dict=base_env_dict) File "C:\Program Files\Google\google_appengine\google\appengine\tools \dev_appserver.py", line 1839, in Dispatch self._module_dict) File "C:\Program Files\Google\google_appengine\google\appengine\tools \dev_appserver.py", line 1757, in ExecuteCGI reset_modules = exec_script(handler_path, cgi_path, hook) File "C:\Program Files\Google\google_appengine\google\appengine\tools \dev_appserver.py", line 1653, in ExecuteOrImportScript exec module_code in script_module.__dict__ File "C:\Program Files\Google\google_appengine\google\appengine\ext \zipserve\__init__.py", line 58, in import email.Utils ImportError: No module named Utils Python can quite happily import the email.Utils module, so I am guessing that there is a problem with the way the SDK is trying to import the module. I am using the MSI version of the sdk. Has anyone else suffered from this problem? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Upgrade to GoogleAppEngineLauncher 1.1.4 breaks apps running on 1.1.3
Solved the problem by calling to_string() method on atom.url.Url object before passing it on. Note though that this problem appears only on development environment (works fine when deployed) and only after upgraded 1.1.4 ... --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Datastore: Query for .key does not work
Hi Mariza,
ive been having the same issue as ARMIX,
my question is i have a page model one of the page models propertys is
a field called pics which is a list property
im storing a list ok keys from a photo model ... the idea is page has
a number of photos.
from what your saying i think ill need to loop through my list and do
a new query per list item as oposed to using the GQL IN syntax to try
and match the photo model's key with my list of keys from my page.pics
property
is that correct or is there a way to use a Kinds/Models key in GQL ?
On Aug 23, 2:55 am, "Marzia Niccolai" <[EMAIL PROTECTED]> wrote:
> Hi Armin,
> You can't query for the key, there is really no need. If you know the key
> for the entity you want just do:
>
> entity = MyModel.get(key)
>
> Thats all there is to it.
>
> -Marzia
>
> On Fri, Aug 22, 2008 at 7:43 AM, ARMIX <[EMAIL PROTECTED]> wrote:
>
> > Hi,
>
> > I'm new to App Engine, new to python and have some problems with the
> > datastore. :)
> > I'd like to query a record from the Datastore where the field "user" =
> > users.get_current_user() and the field "key" =
> > "agNhd25yCgsSBE5vdGUYBww"
> > ... so the Query looks like:
> > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1 AND key = :2
> > LIMIT 1", users.get_current_user(), key)
> > ...but that doesn't work.
>
> > If I submit the same query without the "AND key = :2" it works fine.
> > It seems that it is not possible to query for the entity key? Is that
> > right? And if yes, how can I get the requested record?
>
> > Until now I tried the following queries without success:
> > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1 AND key = :2
> > LIMIT 1", users.get_current_user(), key)
> > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1 AND id = :2
> > LIMIT 1", users.get_current_user(), "7")
> > notes = db.GqlQuery("SELECT * FROM Note WHERE user = :1",
> > users.get_current_user())
> > notes = Note.get_by_key_name(key)
> > notes = Note.get(db.key.from_path('Note', key)
> > notes = Note.get_by_key_name("agNhd25yCgsSBE5vdGUYBww")
> > notes = db.get("agNhd25yCgsSBE5vdGUYBww")
>
> > Sometimes I got the following error: 'Note' object is not iterable
>
> > The class "Note":
> > class Note(db.Model):
>
> > user = db.UserProperty()
>
> > subj = db.StringProperty(multiline=False)
>
> > text = db.StringProperty(multiline=True)
>
> > tscrt = db.DateTimeProperty(auto_now_add=True)
>
> > tschg = db.DateTimeProperty(auto_now=True)
>
> > Can anybody help me please?
>
> > Thanks,
> > Armin
>
>
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[google-appengine] Re: How count() works?
Микола, count just iterates on the results locally, it's only a little bit more efficient than querying and then iterating; and also has the same limits as other requests (max 1000 entities): http://code.google.com/appengine/docs/datastore/queryclass.html#Query_count On Oct 2, 8:10 pm, Микола <[EMAIL PROTECTED]> wrote: > Hi. I want to know if query executed when i call count(). And is > count() executed efficiently? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] How count() works?
Hi. I want to know if query executed when i call count(). And is count() executed efficiently? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] from . import module
>From a child directory, why can't a module in a parent or sibling directory be imported? Am I mistaken, or is this prohibited? (not using Django, just webapp) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Re: Did Something Change Since Yesterday which now Requires Additional Indexes?
Now I am totally hosed. Tried to add the needed index (which seemed to be in the new 1.1.4 format and I am running 1.1.1) it caused an error. I vacuumed the indexes and tried to regenerate. When I do ALL indexes now do not rebuild and show in error status?? What is up with that? On Oct 2, 12:07 am, gg <[EMAIL PROTECTED]> wrote: > As stated in the title: > > Did Something Change Since Yesterday which would now Requires > Additional Indexes? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
[google-appengine] Did Something Change Since Yesterday which now Requires Additional Indexes?
As stated in the title: Did Something Change Since Yesterday which would now Requires Additional Indexes? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~--~~~~--~~--~--~---
