I'm looking to send email messages programmatically from my websites. For example, if people register their email address, I would like to email them to confirm their email address. To do this I will need to use an email sending tool and plug into an smtp service. In the past (7 or so years ago) I used Jmail, however, I am not sure wh...
SELECT FROM Foo WHERE sort < sortParam PARAMETERS String sortParam ORDER BY sort RANGE 15,16 where there are less then 15 objects throws a java.lang.IllegalStateException exception. Do I just need to catch that exception to handle the case when there are fewer then 15 records, or is there something else going on that I'm...
In my own App Engine App, at the browser, I wanted to mess around with new code by simulating having access to the python interpretor's >> within a browser window by embdedding this app --> http://shell.appspot.com/ . One can get shell_20091112.tar.gz at http://code.google.com/p/google-app-engine-samples/downloads/detail?name=shell_200...
I created one application in eclipse.I want to deploy my application into google app engine.How to deploy my application into google app engine. ...
I created an application to add an event into my Google Calendar. I ran it successfully and added an event in my calendar. After that I deployed my application into Google App Engine and ran my program in a browser. It accepts input but doesn't add the event into the calendar. I don't know what the problem is. How do I solve this? ...
Hi, I just have a hunch about this. But if feels like I'm doing it the wrong way. What I want to do is to have a db.StringProperty() as a unique identifier. I have a simple db.Model, with property name and file. If I add another entry with the same "name" as one already in the db.Model I want to update this. As of know I look it up w...
Has anyone any suggestions on how to use internationalization in app engine / webapp / python. I have seen some posts re - django - translation support but i cant seem to find enough info on how to make it work. What i need is a solution where browser can detect language user can override and set strings in templates and from code can...
Hi, I'm trying to use figure out how to sub query a query that uses a filter. From what I've figured out so far while using .filter() it changes the original query, that leads to a second .filter() would also have to match the first filter. I would like to make something like this: modules = data.Modules.all().filter('page = ', page.k...
For Java web app development on GAE, I would like to add users androles management. Is there a basic Java library which provides role management (maybe based on annotations) which I could use as a foundation? ...
Every few times I run my app on the development server it seems to deadlock. I'm not sure if it also deadlocks on the production server. I pause the threads and see that one of them is stuck at Permissions.implies:162 which is the start of a synchronized block. What my code does is: on the home page, it sends 5 jquery requests at the ...
Does each JVM instance only use one thread? eg. if a user makes a request to one JVM instance that will take 5 seconds, then 2 seconds later another user makes a request to the same JVM instance, will the second user have to wait the remaining 3 seconds before their request even starts being processed? ...
I've been developing a Facebook app using Google App Engine in Python and the pyfacebook bindings. For weeks everything worked fine but suddenly it stopped. At first I thought it was a code change so I rolled back the entire dev directory to a version I knew worked, but still it failed. It's possible a change I made to the application'...
what are jar files needed for google App engine datastore via JPA and JDO ...
I created one application in eclipse.I deployed that application in google app engine.It deployed successfully.But now i want to do some changes in my application.It is possible to do the changes.And also one more doubt possible to delete my appliction after done the deployement. ...
I created one web application in eclipse and successfully deployed it on google app engine. Then i do some modification in my program. How to do changes in the deployed application. Is their any option for redeployment? ...
Consider a GAE (python) app that lets users comment on songs. The expected number of users is 1,000,000+. The expected number of songs is 5,000. The app must be able to: Give the number of songs a user has commented on Give the number of users who have commented on a song Counter management must be transactional so that they alway...
I'd like to write a web site using App Engine. The web site will be a front end for schedule the execution of some events that I plan to run with cron. Can I use cron from App Engine? Anyone can provide an example? ...
Is there any restriction? Other kind of advertisements? ...
Hi, i need a locking in memcache. Since all operations are atomic that should be an easy task. My idea is to use a basic spin-lock mechanism. So every object that needs locking in memcache gets a lock object, which will be polled for access. // pseudo code // try to get a lock int lock; do { lock = Memcache.increment("lock", 1); } wh...
Since there are 1500+ questions for google-app-engine, I was wondering: what are people actually using it for? are they doing something for their companies or startups? are they just playing around with it because "the cloud is cool"? are they using it because it's the "java free hosting"? (answers from actual GAE users are preferabl...