2 possible ways of persisting large strings in the Google Datastore are Text and Blob properties. From a storage consumption perspective which of the 2 is recommended? Same question from a protobuf serialization and deserialization perspective. Thanks, Keyur ...
Is there a way to periodically run some code on app engine? I have a form which allows users to upload images, and I do the image upload before the full form submission. There is potential for a user to upload an image, and then never finish the form. I need to periodically run a check and delete any unassociated images to clean up. ...
from wtforms import Form, BooleanField, TextField, validators,PasswordField class LoginForm(Form): username = TextField('Username', [validators.Length(min=4, max=25)]) password = PasswordField('Password') when i use LoginForm on webapp(gae) like this : def post(self): form=LoginForm(self.request) but it show error : ...
I had created entity in google app engie datastore using JPA. I set the id as follows @Id @GeneratedValue(strategy=GenerationType.SEQUENCE) private Long s; After i deployed my applicaiton it give identity (i.e) unique value.but igive 1001,1002,1003 ....as id.But i wnat 1,2,3,4,5 like that.how to achive this? ...
Hi created student entity in gogole app engine datastore using JPA. Student--->Coding @Entity @Table(name="StudentPersonalDetails", schema="PUBLIC") public class StudentPersonalDetails { @Id @Column(name = "STUDENTNO") private Long stuno; @Basic @Column(name = "STUDENTNAME") private String stuname; public void se...
Is google app engine datastore support unique constraints? Thanks in advance ...
(1) a={'b':'bbbb','c':'ccc',....} (2) self.redirect('/tribes/view?b=' + a['b'] + '&c=' + a['c']) so i want to get b=' + a['b'] + '&c=' + a['c'] ... from dict a hae any easy way to do this ? thanks ...
wtforms is a forms validation and rendering library for python web development but i can't find how to handle the username and email Unique , thanks ...
my model is : class MyUser(db.Model): username = db.StringProperty() password = db.StringProperty(default=UNUSABLE_PASSWORD) email = db.StringProperty() nickname = db.StringProperty(indexed=False) and my method which want to get all username is : s=[] a=MyUser.all() for i in a: s.append(i.username) and i wa...
Is it possible to change or assign new parent to the Model instance that already in datastore? For example I need something like this task = db.get(db.Key(task_key)) project = db.get(db.Key(project_key)) task.parent = project task.put() but it doesn't works this way because task.parent is built-in method. I was thinking about creating...
Any tips or best practices for unit testing Google Wave robots written in Java? I'm expecting to deploy on AppEngine, if that helps. I'm a fan of TDD but new to both Wave Robots and AppEngine, so I'm hoping to use TDD to help me explore the design space. ...
Using python and wsgiref.handlers, I can get a single variable from a form with self.handler.request.get(var_name), but how do I iterate through all form variables, be they from GET and POST? Is it something like this? for field in self.handler.request.fields: value = self.handler.request.get(field) Again, it should include both fi...
I'm developing a GWT app running on the Google App Engine and wondering if I need to worry about Cross-site request forgery or is that automatically taken care of for me? For every RPC request that requires authentication, I have the following code: public class BookServiceImpl extends RemoteServiceServlet implements BookService { ...
Hi, I've recently tried to switch my app engine app to using openID, but I'm having an issue authenticating with remote_api. The old authentication mechanism for remote_api doesn't seem to work (which makes sense) - I'm getting a 'urllib2.HTTPError: HTTP Error 302: Found', which I assume is appengine redirecting me to the openid login p...
what is the difference between owned one to many relationship and owned one to many bidirectional relationship i read the article below but i don't understand it. Article ...
I'm running Google App Engine on the dev server. Here is my models file: from google.appengine.ext import db import pickle import re re_dept_code = re.compile(r'[A-Z]{2,}') re_course_number = re.compile(r'[0-9]{4}') class DependencyArcHead(db.Model): sink = db.ReferenceProperty() tails = db.ListProperty() class DependencyA...
Here is the lay of the land. I have an app that I have created. I uninstalled hibernate, installed app-engine plugin and am using jdo. I am able to create a domain-class but the when I run generate-all I run into the following error. Oh and I did try just generating the controller for the domain class and that seemed to work fine but t...
Does Google App Engine have an equivalent of Django's get_or_create()? ...
I am using the robots api. I have a wave id and wavelet id, and my app's email is added to the wave. How can I simply get the wave (or wavelet's) contents using the python api? ...
I am trying to use the Google Wave Active Robot API fetch_wavelet() and I get an HTTP 502 error example: from waveapi import robot import passwords robot = robot.Robot('gae-run', 'http://images.com/fake-image.jpg') robot.setup_oauth(passwords.CONSUMER_KEY, passwords.CONSUMER_SECRET, server_rpc_base='http://www-opensoci...