Scratching my head with the following problem.
I have developed a SAPUI5 application using smarttemplates/odata annotations. In the first screen - i create entries for an entity - navigate to another screen - create entries for another entity - pretty simple.
But the problem is, I am encountering an error Virus scan profile not active in the backend (gateway embedded). When I switch off the virus profile in /n/IWFND/VIRUS_SCAN backend, all good . No issues at all.
But switch on to a default profile, back comes the problem. 90% of the times I get it in the second screen, but 10% in the first entity.
The weird part is, all the other UI5 applications in the same system works ! If it's a system problem, then it has to be affecting all the ones, but only my application is stuck with this problem.
I realize that there is something different between mine and the rest, but I am unable to figure out what it is . I have compared the projects, manifest/project.json, etc. $batch request payload of mine vs. others and I see no anomaly, other than the _changeset, rest all are identical, and adhering.
So, what would be the one thing that is making a POST request from my application trigger the check for virus scan profile and fail ?
Even strange is, the request statuscode is 202 , but it doesn't reach the backend at all.
Any help is highly appreciated,
thanks,
Sathish R
Finally, the issue seems that one of the properties in my entity is of type EDM.Guid, one of the types for which a virus scan would be performed before passing through the request. As we don't have any profiles configured, I ended up with the error. Converting it to string just fixed the issue :-)
thanks,
Sathish R
Related
I am completely stuck on where to start with getting a log-in area for a Clojure site I am building (for fun).
I've looked at several resources, which I'll post below, mercilessly copy/pasted code, and the closest I can get is one of two situations:
The login page takes the login but says that the login failed, though, as far as I can tell, the login matches.
Or I get this error: No method in multimethod '->sql' for dispatch value: null
I'm not sure how to interpret the above error: is this specifying that I need a multi-method or is it specifying that I need to check for null? The null requirement makes no sense at all. I'm not really asking but if anyone wants to give an explanation, that is great.
I tested the output by comparing the results-to-select queries from raw non-hashed data, I've went through 5 variations on this theme, using everything from page-to-page calls to creating new defpartials, multi-methods, defn, etc.
Sources I have used (unfortunately, I can't list all of them being a first-time poster):
This one uses Clojure -> Korma -> PostgreSQL, but the code doesn't seem to work for multiple users?
http://www.vijaykiran.com/2012/01/17/web-application-development-with-clojure-part-2/
This one shows how to use Noir and PostgreSQL (Yes, I am using Noir):
https://yogthos.net:11794/blog/23-Noir+tutorial+-+part+2
The 4Clojure site, but that one uses CongoMongo:
The Heroku Twitter clone, but no mention of how to create logins for one person, much less several.
I also bought Programming Clojure from O'Reilly Press, but once again, nothing about how to create a log-in area.
FIRST EDIT: I was asked to create a github repository of a stand-alone site. This includes a working "Account Creation" area that is found in the welcome.clj file and only a form of the Login area in login.clj.
I was attempting to get some of the same errors working as I had last night and also attempting to get this working before I uploaded the files. I don't have any reasonable starting points yet, thus there is no beginning implementation as of yet. I'm seriously embarrassed at the solutions I've been coming up with, thus I don't want to post them. I get conceptually what I should do, but for some reason, I can't seem to translate this. This is my first github account: my background is Python, Scheme a'la SICP, and some Python + PostgreSQL marketing program I built.
SECOND EDIT: Ack! I can't seem to get the thing to work at all... Yeah, I spent well over 20 minutes (hours) on this one, so I have just have to admit that I don't yet have the requisite knowledge to accomplish this, no matter how many sources I look to. I committed the updated files and all the odd things I tried, including all the variations on login box to running raw SQL. The closest I can come is getting it so that I don't get any errors, but no evidence at all that someone is logged in. Thanks so much for the help and suggestions. I'll most certainly return to this later.
https://github.com/dt1/noirKormaLogin
There are a couple of issues that I see. First, in datapass.clj, you're creating an entity with no content. I'm not sure how Korma handles that. It's trying to thread results as inputs to other functions, so I could see how nil gets introduced there.
Secondly, you'll need something to handle the login post. (defpage ...) only handles GET requests by default. You'll need a separate defpage to handle the post. Something along these lines:
(defpage [:post "/login"] {:keys [user-name pwd]}
(if-let [user (db/find-user user)]
(if (noir.util.crypt/compare pwd (:password user))
(do
(noir.session/put! :some-key some-value)
(noir.response/redirect "/success"))
noir.response/redirect "/failed-to-login"))
(noir.response/redirect "/failed-to-login"))
session/put! is how you put data into the session. The default is to use an in-memory store. You'll need to add Ring middleware to use persistent sessions (look at Session Stores).
Also, as luck would have, someone just posted an authentication app for Noir... you may want to take a look: https://github.com/xavi/noir-auth-app
We have a working web application, which has been developed with ExtJS for client side, and Struts, Spring, Hibernate for server side. now, we are considering to migrate to GXT (or may be GWT itself). The thing is I'm very new to GWT/GXT. and we are trying to decide whether we go down this road or not.
1) Until now, we have 2 domains for our web-app. one is that the application (Struts+...) have been deployed to, and the other is mainly a cookie-less custom CDN. The transfer between client and server is mostly XHR requests, sending/receiving JSON and/or JSONP. But with the new approach ahead of us, I began to understand that we are supposed to have only ONE domain, for the whole GXT application. Is it correct or I forgot to consider something here?
and if not, Is it possible that we deployed just part of the application (i.e. com.ourcompany.webapp.gxt.server.*) to the main server, and the contents that have been compiled and generated by the GWT compiler to the other CDN-like domain?
2) The other big issue we are facing is that the current application is consists of mostly 3 huge modules. One is responsible for "SignIn", the other is for "Webtop", and the third one is "Modules which each users has access to". The latter has been generated on the server due to "access rights" of each users, and obviously could be different from one user to the other.
The only thing I could find on this matter, which might be related is Code Splitting. Although I'm not totally sure if this would be the right solution for this.
We want that the application, on Start Up, checks whether user has been logged in or not. if not, loads the SignIn sets of javascript files (i.e webapp.signin.nocache.js), then after user has entered the correct username/password, unloads this signin file and loads webtop.nocache.js AND modules.nocache.js.
I would be really appreciated if you could help me out.
1) If your GWT app is loaded from a different domain than you have to face the same origin policy. You can not do a xhr to a different domain. You could use the ScriptTagProxy to get around this. But it does not feel very netural.
2) You can use CodeSplitting in order to automatically load a particular part of your application dynamically. All you have to do is to warp your splitt point into an async call.
A detailed compile report gives you a pretty good overview how well code splitting is working.
But CodeSplitting does not unload already loaded code. If its really importend to do so you have to redirect the user to another url in order to load the appropriate user depended module.
Once Javascript code has been loaded and executed its impossible to remove the code from the browsers memory.
Grettings,
Peter
After many support cases we are realizing the biggest problem we have with our GWT-based application is that users are leaving it open for weeks at a time. This means when we do a hotfix every week or two the RPC stubs are out of sync and cause silent exceptions to be thrown making the site look "broken". Does anybody know of a way to auto-detect and avoid this issue? A few ideas I have had are...
On catching an RPC mismatch exception refresh the browser.
When loading the host page inject the version number in source control the build came from, have a status checker/timer that check that the number did not change. When it does reload.
Reload on an arbitrary timer (perhaps twice daily).
Any ideas?
I'd like to present a fourth option.
Create an RPC Proxy and UI Object proxy that all UI requests and RPC requests are routed through. This way whenever this proxy detects that something is out of date it can dynamically load the widget or change it's expected RPC models.
This is pretty how Vaadin does things and it works great. Vaadin is a UI toolkit built on GWT in case you're not aware. We have several long running production applications using this over the last couple of years and we have made some tweaks in their UI Def language (UIDL) to add version mismatch.
This diagram is a good representation of what they do and if you don't want to build something like this yourself I'd of course recommend moving to Vaadin.
Implement security that logs users out after an hour of idle time. Assuming your releases are overnight or on weekends, the users are logging in after the release. No need to refresh the app.
this is viable especially if your site eventually needs users to login.
I am to use Blogengine .Net as my blogengine and most of it served well until I realized I have to run this identically on two servers and one database.
When the editor is on server 1, anything he/she posts will be written to the database and will be updated in the in memory post list(static List Posts). Meantime for any user on server 2, nothing done on server 1 is visible because the in memory post there won't be updated.
One life questioning solution is making the editor switch servers from their host files and with a help of a shinny button making them able to reload the posts as
BlogEngine.Core.Post.Reload();
HttpRuntime.Close();
but I really feel there should be a better solution because I m now thinking about would integrating Memcached somewhere here be easy, if not I guess I have to switch from BlogEngine .Net.
Any suggestion would be more than welcome,
Thanks,
Bilsay
I have the same problem. I am running 2 servers and a load balancer to do the work. I first login with the first server, and post the blog. than login on the second server and press the button "reset cache" which I wrote to get the data again from database. But this solution is still troublesome for user comments.
Thanks
There's an extension to help solve this problem:
http://allben.net/post/2009/05/10/Web-Farm-Extension-10
We have a very strange problem at the moment whereby our Silverlight 4 application will not display the contents of ComboBox on (some) client machines.
We have an observable collection in our view model, with a simple binding expression on the ItemsSource on the ComboBox. In the page's Loaded event, we are calling a domain service to retrieve the items, then in it's Completed event we are storing the returned items into the collection. Nothing fancy.
Firstly, when we deployed the solution in Release mode, the combobox's had no values. I opened fiddler and saw the request and response from the domain service, and it was in fact successfully returning the correct data to the client. However the combobox's had no data in them.
I rebuilt in Debug|Any CPU configuration, hit the same URL and it worked straight away - the combobox's were filled with data. Problem solved? Not quite.
We then gave the URL to someone else to test (on the same network/subnet) and the combobox
s were empty again. It works on 5 machines, and doesn't work on the rest. I checked fiddler, and the response is coming back with all the data - Silverlight just doesn't populate the comboboxes.
We have tried a number of things - IE no addons, chrome incognito's, cross domain and client access policies... nothing seems to make a difference. We've tried running the browsers as administrator, we've even tried on very old machine running IE6, same issue (ie no UAC or anything strange there). No anti-virus installed on any of the machines. At a complete loss. We've tried machines on the company domain, and off the domain with no difference - different operating systems (xp/win7).
Does anyone have any ideas or solutions for me on this problem? Seems like there's something installed on the machine doing it?
Cheers,
Matt
This is probably a timing issue. ComboBoxes wreak all sorts of havoc. Check out Kyle's blog for tips and some tools to make things easier.
http://blogs.msdn.com/b/kylemc/archive/2010/11/02/silverlight-combobox-frequently-asked-questions.aspx
The general problem is that the Silverlight ComboBox was not designed with async data patterns in mind.