datastore

I've got my sencha-touch app wired up as I believe it should be, and when I load it into Chrome, the Javascript console doesn't throw any errors. The WebService is finally returning the appropriate data, yet for some reason I can't for the life of me figure out why the panel is blank. Here's the APP URL http://rpcm.infinitas.ws/ Here's the WebService URL http://rpc.infinitas.ws/Vimeo/Read?_dc=1308083451839&limit=25&callback=stcCallback1001 And here is some relevant code. CONTROLLER rpc.controllers.VimeoController = new Ext.Panel( rpc.views.Vimeo.index ); VIEW rpc.views.Vimeo.index = { id:

in http://code.google.com/appengine/docs/python/datastore/entities.html#Saving_Getting_and_Deleting_Entities the batch operation for getting the entity are stated below: A batch get. entities = db.get([k1, k2, k3]) How can I fetch all entities without supplying keys? Lynard I got a solution on this and can be found in Datastore Queries - Query interface example : Query q = new Query("Person") PreparedQuery pq = datastore.prepare(q); for (Entity result : pq.asIterable()) { String firstName = (String) result.getProperty("firstName"); String lastName = (String) result.getProperty("lastName");

In a shared expenses app that shows payments dues and shared expenses details for each group. As a financial application, so many operations are transactional, which requires strong consistency to ensure data integrity. We used Entity Groups and ancestor queries which seems to have solved the issue of strong consistency, this caused the entity group to be large in size. As the shared 'group' is now the parent of members, expenses, payments, dues..etc. Until now we don't see a problem, but we are worried as this scales, expenses and/or payments can scale to the order of 10~100K entities. After

I would like to perform a small operation on all entities of a specific kind and rewrite them to the datastore. I currently have 20,000 entities of this kind but would like a solution that would scale to any amount. What are my options? Use a mapper - this is part of the MapReduce framework, but you only want the first component, map, as you don't need the shuffle/reduce step if you're simply mutating datastore entities. Daniel is correct, but if you don't want to mess up with the mapper, that requires you to add another library to your app you can do it using Task Queues or even simpler using

I'm trying to upload my dataset to datastore. I create dataset and try to upload dataset to datastore with "Upload to datastore" menu in ckan interface. I got "Upload error: Could not connect to DataPusher." error message in web not in any log(ckan log, datapusher log) This is contents of my development.ini sqlalchemy.url = postgresql://ckan_default:MYPASS@localhost/ckan_default ckan.datastore.write_url = postgresql://ckan_default:MYPASS@localhost/datastore_default ckan.datastore.read_url = postgresql://datastore_default:MYPASS@localhost/datastore_default ckan.datastore.default_fts_lang =

I have a db expando class called widget. I'm passing in a json string and converting it to a dict and then adding it to the datastore. My question is how can I loop through my dict to create dynamic fields. widget = Widget.get_by_key_name(key_name) widget.name = self.request.get('wname') fields = simplejson.loads(self.request.get('wcontents')) for k,v in fields.iteritems(): widget.k = v This renders "k" as my field name as oppose to the k value in the dict. The syntax widget.k references the attribute k on object widget . To dynamically choose which attribute you set, use the built-in setattr