google-app-engine

问题 I am trying to implement an ndb model audit so that all changes to properties are stored within each model instance. Here is the code of the _pre_put_hook I chose to implement that. def _pre_put_hook(self): # save a history record for updates if not (self.key is None or self.key.id() is None): old_object = self.key.get(use_cache=True) for attr in dir(self): if not callable(getattr(self, attr)) and not attr.startswith("_"): if getattr(self, attr) != getattr(old_object, attr): logging.debug(

问题 When i click to deploy the application on google app engine in netbeans ,these are the error messages produced. Let me tell you that initially, probably i entered the wrong password and the application failed to deploy. But now when i click to deploy the application it doesn't ask me the email or the password. Anyway how can i resolve these errors ? Reading application configuration data... Bad configuration: appengine-web.xml does not contain a <threadsafe> element. See http://code.google

问题 When i click to deploy the application on google app engine in netbeans ,these are the error messages produced. Let me tell you that initially, probably i entered the wrong password and the application failed to deploy. But now when i click to deploy the application it doesn't ask me the email or the password. Anyway how can i resolve these errors ? Reading application configuration data... Bad configuration: appengine-web.xml does not contain a <threadsafe> element. See http://code.google

问题 is there a way to access the blobstore in the new console? I couldn't find one, nor did I find a way to return to the old console 回答1: While most likely this is still not implemented yet, but you can still access the old Blob Viewer from this link: https://appengine.google.com/blobstore/explorer?&app_id=s~<APPLICATION_ID> 回答2: The Blobstore UI is now accessible from the Developer Console at this link: https://console.cloud.google.com/appengine/blobstore?project=<APPLICATION_ID> Or just browse

问题 Given I have two variables {{ profile }} with a value "test" and {{ element.author }} again with the value "test". In jinja2 when I try to compare them using an if, nothing shows up. I do the comparison as follows: {% if profile == element.author %} {{ profile }} and {{ element.author }} are same {% else %} {{ profile }} and {{ element.author }} are **not** same {% endif %} I get the output test and test are not same Whats wrong, how can I compare? 回答1: I have the same problem, two variables

问题 I saw on the Google App Engine documentation that http://www.antlr.org/ Antlr3 is used as the parsing third party library. But from what I know Pyparsing seems to be the easier to use and I am only aiming to parse some simple syntax. Is there an alternative? Can I get pyparsing working on the App Engine? 回答1: "Just do it"!-) Get pyparsing.py, e.g. from here, and put it in your app engine app's directory; now you can just import pyparsing in your app code and use it. For example, tweak the

问题 I'm developing an application on Google App Engine using Maven. When I run the local server I would like to have some data preloaded in the datastore, such as the local user table. The server puts the datastore file under the WEB-INF/appengine-generated of the target directory and it is cleaned before every build. Is there a convenient way to do so? 回答1: You have a couple of options: a. backup and reload local_db.bin in your build steps b. use the datastore.backing_store system property with:

问题 I have an AppEngine application with billing enabled. I also set up 1 idle instance, and set the pending-latency to 500ms. The issue is that I get quite a lot of new frontend instance warmups: This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application. This is surprising mostly because it usually happens after a few

问题 We still have a rare case of duplicate entries when this POST method is called. I had asked for advice previously on Stack overflow and was given a solution, that is utilising the parent/child methodology to retain strongly consistent queries. I have migrated all data into that form and let it run for another 3 months. However the problem was never solved. The problem is right here with this conditional if recordsdb.count() == 1: It should be true in order to update the entry, but instead HRD

问题 We still have a rare case of duplicate entries when this POST method is called. I had asked for advice previously on Stack overflow and was given a solution, that is utilising the parent/child methodology to retain strongly consistent queries. I have migrated all data into that form and let it run for another 3 months. However the problem was never solved. The problem is right here with this conditional if recordsdb.count() == 1: It should be true in order to update the entry, but instead HRD