Trying to view items in memcache in GAE.
https://code.google.com/p/googleappengine/issues/detail?id=7245
http://googleappengine.blogspot.com/2012/08/app-engine-171-released.html
These links say "Namespaces in the Memcache Viewer - The Admin Console now supports retrieving memcache values that are stored in a non-default namespace."
But I still couldn't the view item trying different combinations.
tried, ns.key, ns_key, key (where ns is namespace, key is key set in the program).
I use Development SDK 1.7.6, with GO runtime. What should I enter it in the search space as seen in the picture, or what is the best way?
This is not currently implemented in the development server (but is available in the production admin console as pointer by Jesse in the comment).
You should open a new feature request in dev_appserver2 projects.
If you feel like contributing it yourself, you could easily add support by patching:
memcache_viewer.html to add a new <input> field to capture the namespace.
memcache_viewer.py to add namespace arg to memcache.get call
Related
I'm trying to delete a key from the memcache using the latest GAE console (https://console.developers.google.com/appengine/memcache). I used to be able to do this with the old console but I can't figure out the new one.
Sometimes I manually edit an entity with the GAE console and afterwards I need to delete the entity from the memcache so that my app uses the latest data. I know the entity is in the memcache since the old data is being served, but I can't find it with the memcache viewer.
Here is the new memcache console:
I leave Namespace blank because I don't use them.
I select Python String for the key type since I am using Python.
For the key, I've tried:
Key('Election', 6254893018906624)
aglzfm9wYXZvdGVyFQsSCEVsZWN0aW9uGICAgKSsmY4LDA
NDB9:aglzfm9wYXZvdGVyFQsSCEVsZWN0aW9uGICAgKSsmY4LDA
but none of them work.
Clicking the "Show all keys" link just produces a blank screen.
How do I get this to work?
Not sure for Python, but for Java, with Objectify, I have used this many times:
Namespace: ObjectifyCache
Key type: Java String
Key: aglzfm9wYXZvdGVyFQsSCEVsZWN0aW9uGICAgKSsmY4LDA (from your data)
Is it possible to have multiple user profiles—with separate cookies, history, local storage, etc.—running at the same time in one CEF (Chromium Embedded Framework) instance? The goal is to allow multiple browsing "sessions" side-by-side in one window (it's actually an OpenGL app).
There are two possible solutions I've looked into, each with its own problems:
Using CefCookieManager
This is possible to do for just cookies by creating multiple CefCookieManagers. However, there does not seem to be similar API for history and local storage, which are now still shared.
Using CefSettings::cache_path
CefSettings settings;
CefString(&settings.cache_path).FromASCII("C:\\CefCache");
CefInitialize(args, settings, app, nullptr);
The problem here is that CefSettings is associated with the global CEF instance rather than with each browser/client.
Is there a way to do this that I have not discovered?
If it's only about cookies and local storage, and you host content using custom scheme handler or request interception, then you could use different domains/subdomains for each profile. See this topic for reference: http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=11695 .
Regarding history, you could implement history on your own by using the OnBeforeBrowse callback.
In the topic referenced above it is also mentioned that it's technically possible to specify a different cache path per CefRequestContext (can be provided during browser creation). So working on a patch for CEF may be another option.
EDIT: CEF revision 2040 adds support for complete isolation of storage and permissions per request context, see comment #7 in Issue 1044: https://code.google.com/p/chromiumembedded/issues/detail?id=1044#c7
I would like to accesss the sitecore DB and items from console application like
Sitecore.Data.Database db = Sitecore.Context.Database
or
Sitecore.Data.Database db = Sitecore.Data.Database.GetDatabase("master")
how do I configure and setup my console application to access the DB as above?
Thanks Everyone for the suggestion, I am really interested in config changes, I used webservice, but it has very limited methods. For example, if I would like create an Item with the template and insert the item with prepopulated value, there is no such option. The reason I am looking for the console apporach is I would like to import the contents from XML or excel sheet and push those to the sitecore tree, eventually use the scheduled task to run the console app periodically. I do not want to copy the entire web.config and app_config. If anyone has already done this, could you please post your steps and necessary config changes?
You have two options I think:
1) Import the Sitecore bits of a website's web.config into your console application's app.config, so that the Sitecore API "just works"
I'm sure I read a blog post about this, but I can't find the reference right now. (I will have another look) But I think the simple but long winded approach is to copy all of the <sitecore/> element and all the separate files it references. I'm fairly sure you can whittle this down to a subset of the config required for data access with a bit of thinking.
2) Don't use the Sitecore API directly, connect to a web service that exposes access to it remotely.
There are a few of these that already exist. Sitecore itself exposes one, Sitecore Rocks has one, and Hedgehog TDS has one too. And you can always write your own (since any web service running inside the Sitecore ASP.Net app can make database calls and report values back and forth - just remember to consider security if this web service might end up exposed externally for any reason)
John West links to some relevant stuff here:
http://www.sitecore.net/Learn/Blogs/Technical-Blogs/John-West-Sitecore-Blog/Posts/2013/09/Getting-Data-Out-of-the-Sitecore-ASPNET-CMS.aspx
-- Edited to add --
I've not found the blog post I remember. But I came across this SO thread:
Accessing Sitecore API from a CLI tool
which refers to this blog post:
http://www.experimentsincode.com/?p=232
which I think gives the info you'll need for option 1.
(And it reminds me that, of course, when you copy the config stuff you have to copy the Sitecore binaries into your app's folder as well)
I would just like to expand on #JermDavis' post and note that Sitecore isn't a big fan of being accessed when not in a web application. However, if you still want to do this, you will need to make sure that you have all of the necessary configuration settings from the web.config and App_Config of your site in your console application's app.config file.
Moreover, you will never be able to call Sitecore.Context in a console application, as the Sitecore Context sits on top of the HttpContext which means that it must be an application and have a valid request for you to use it. What you are looking for is something more along the lines of Sitecore.Configuration.Factory.GetDatabase("master").
Good luck and happy coding :)
This sounds like a job for the Sitecore Item Web API. I use the Sitecore Item Web API whenever I need to access Sitecore data from the master database outside the context of the Content Management server or outside of the context of the Sitecore application. The Web API definitely does not allow you to do everything that the standard Sitecore API does but it can act as a good base and I now extend upon the Web API instead of writing my own custom web services whenever possible.
Thanks to JemDavis's advise.
After I copied the configuration and made changes to config section to get rid of conflicts. I copied almost all of Sitrecore, analytics and lucene dlls, it worked great.
Only thing you have to remember is, copy the app_config folder to the same location where your dlls are.
Thanks again JemDavis....
From the tutorial, which I confirmed by creating a simple project, the index.yaml file is auto-generated when a query is run. What I further observe is that until then the admin console (http://localhost:8080/_ah/admin/datastore) does not show the data-store.
My problem is this: I have a project for which data/entities are to be added manually through the datastore admin console. The website is only used to display/retrieve data, not to add data to the data-store.
How do I get my data-store to appear on the console so I can add data?
Yes, try retrieving from the empty data-store through the browser just so I can get the index.yaml to populate, etc. But that does not work.
The easiest way is probably just to create a small python script inside your project folder and create your entities in script. Assign it to a URL handler that you'll use once, then disable.
You can even do it from the python shell. It's very useful for debugging, but you'll need to set it up once.
http://alex.cloudware.it/2012/02/your-app-engine-app-in-python-shell.html
In order to do the same on production, use the remote_api:
https://developers.google.com/appengine/articles/remote_api
This is a very strange question.
The automatic creation of index.yaml only happens locally, and is simply to help you create that file and upload it to AppEngine. There is no automatic creation or update of that file once it's on the server: and as the documentation explains, no queries can be run unless the relevant index already exists in index.yaml.
Since you need indexes to run queries, you must create that file locally - either manually, or by running the relevant queries against your development datastore - then upload it along with your app.
However, this has nothing at all to do with whether the datastore viewer appears in the admin. Online, it will always show, but only entity kinds that actually have an instance in the store will be shown. The datastore viewer knows nothing about your models, it only knows about kinds that exist in the datastore.
On your development server you can use the interactive console to create/instantiate/save an entity, which should cause the entity class to appear in the datastore interface, like so:
from google.appengine.ext import ndb
class YourEntityModel(ndb.Model):
pass
YourEntityModel().put()
I am setting cache properly as my project does grab the correct result from it. I want to view it in the dev console memcache viewer (http://localhost:8080/_ah/amdin/memcache)
But when I paste in the key, it says "no such key". The memcache statement I use is:
stuff=memcache.get(userid, namespace='book')
So when I use the userid (aka key) in the memcache viewer, it fails. Am I to somehow add the namespace? I tried that and that failed. I also tried the entity key, that was a fail. any ideas?!?
To the best of my knowledge you can't retrieve a namespaced memcache key using the dev console memcache viewer.
You have more than an option though:
a. Use the interactive console with a code like this:
from google.appengine.api import memcache
print memcache.get(youruserid, namespace='book')
b. Create an admin section (Webapp+memcache api) to your web application adding this feature