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  • 640 enterprise library caching threads - how?

    - by JohnW
    We have an application that is undergoing performance testing. Today, I decided to take a dump of w3wp & load it in windbg to see what is going on underneath the covers. Imagine my surprise when I ran !threads and saw that there are 640 background threads, almost all of which seem to say the following: OS Thread Id: 0x1c38 (651) Child-SP RetAddr Call Site 0000000023a9d290 000007ff002320e2 Microsoft.Practices.EnterpriseLibrary.Caching.ProducerConsumerQueue.WaitUntilInterrupted() 0000000023a9d2d0 000007ff00231f7e Microsoft.Practices.EnterpriseLibrary.Caching.ProducerConsumerQueue.Dequeue() 0000000023a9d330 000007fef727c978 Microsoft.Practices.EnterpriseLibrary.Caching.BackgroundScheduler.QueueReader() 0000000023a9d380 000007fef9001552 System.Threading.ExecutionContext.runTryCode(System.Object) 0000000023a9dc30 000007fef72f95fd System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) 0000000023a9dc80 000007fef9001552 System.Threading.ThreadHelper.ThreadStart() If i had to give a guess, I'm thinkign that one of these threads are getting spawned for each run of our app - we have 2 app servers, 20 concurrent users, and ran the test approximately 30 times...it's in the neighborhood. Is this 'expected behavior', or perhaps have we implemented something improperly? The test ran hours ago, so i would have expected any timeouts to have occurred already.

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  • Using Symbol MC70 series scanner with native code

    - by Sandeep
    Is it possible to use Symbol MC70 series scanner with native code? I have a Windows Mobile application written using Lazarus(Object pascal) and I want to use it with Symbol MC70. The sdk that they have are for C, .NET and Java. I had a look at the C sdk and it comes with .LIB files which I cannot use with Object Pascal. I have no clue as to how the scanner is working with .NET stuff, I could not see a WIN32 dll in the files provided, maybe it is in the cab file. Any suggestions as to what I should do to get the scanners to work for me. Sandeep

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  • Where is my validator?

    - by Danny Chen
    I have a validator in my page: <asp:RequiredFieldValidator ID="rfv1" runat="server" ControlToValidate="IdentifySEDSED1TxtDate" ErrorMessage="Significant Event Date 1 is missing" ValidType="SEDate">*</asp:RequiredFieldValidator> I found that in Page_Load: (below is a screen shot from the Watch Window) this.FindControl("rfv1") {Text = "*"} rfv1 The name 'rfv1' does not exist in the current context See, I can get this control with FindControl, but I can't get it using ID directly! What happens?

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  • rails - named scoped help

    - by sameera207
    Hi All, I want to write a named scoped to get a record from its id. Ex: I have a model called Event and its same as doing Event.find(id) (I dont want to use find inside my controller and I want my controller to use a named scoped (for future flexibility)) So I have written a named scoped named_scope :from_id, lambda { |id| {:conditions = ['id= ?', id] } } and I'm calling it from my controller like Event.from_id(id) But my problems is it returns Event object array not only one object Ex: if I want to get event name I have to write event = Event.from_id(id) event[0].name instead I want to write event = Event.from_id(id) event.name Am I doing something wrong here.. thanks in advance cheers sameera

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  • May a NSManagedObjectContext re-fault objects automatically?

    - by frenetisch applaudierend
    I am trying to create an application which allows background threads to update core data objects while the user might be reading the same data. My approach to this would be to use multiple NSManagedObjectContexts and then before a background thread does a -save: operation, I fetch the object the user is currently working on and fire the fault for all its properties and relationships recursively. This way I have all objects the user could act with in my NSManagedObjectContext without seeing the already updated values. But this can only work if the NSManagedObjectContext cannot decide himself that e.g. memory usage is too high, and starts faulting objects which I do not explicitly reference (other than through the NSManagedObject relationship). So the question is, can the NSManagedObjectContext decide that an object needs to be re-faulted, without intervention from my side? Thanks for your effort, Markus

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  • Combinatorics grouping problem

    - by Harry Pap
    I'm looking for an algorithm in c# that solves a combinatorics problem: Assume i have the objects 1,2,3,4 I want to get all possible ways to group these object in multiple groups, that each time contain all objects. Order is not important. Example: <1,2,3,4 <1,2 / 3,4 <1,3 / 2,4 <1,4 / 3,2 <1,2,3 / 4 <1,2,4 / 3 <1,3,4 / 2 <2,3,4 / 1 <1 / 2 / 3 / 4 In the first case there is one group that contain all 4 objects. Next are cases with 2 groups that contain all objects in many different ways. The last case is 4 groups, that each one contains only one object.

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  • Is this valid EJB-QL?

    - by Yishai
    I have the following construct in EJB-QL several EJB 2.1 finder methods: SELECT distinct OBJECT(rd) FROM RequestDetail rd, DetailResponse dr WHERE dr.updateReqResponseParentID is not null and dr.updateReqResponseParentID = ?1 and rd.requestDetailID = dr.requestDetailID and rd.deleted is null and dr.deleted is null IDEA's EJB-QL inspection flags the use of the two object FROM RequestDetail rd, DetailResponse dr with an inspection which says: Several ranged variable declarations are not supported, use collection member declarations instead (e.g. IN(o.lineItems)) The queries themselves function fine (as in return the expected results) on JBoss 4.2. Is IDEA all wet here, or is there a valid issue with the query? And what is the actual preferred alternative syntax for such a query?

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  • Pyramid.security: Is getting user info from a database with unauthenticated_userid(request) really secure?

    - by yourfriendzak
    I'm trying to make an accesible cache of user data using Pyramid doc's "Making A “User Object” Available as a Request Attribute" example. They're using this code to return a user object to set_request_property: from pyramid.security import unauthenticated_userid def get_user(request): # the below line is just an example, use your own method of # accessing a database connection here (this could even be another # request property such as request.db, implemented using this same # pattern). dbconn = request.registry.settings['dbconn'] userid = unauthenticated_userid(request) if userid is not None: # this should return None if the user doesn't exist # in the database return dbconn['users'].query({'id':userid}) I don't understand why they're using unauthenticated_userid(request) to lookup user info from the database...isn't that insecure? That means that user might not be logged in, so why are you using that ID to get there private info from the database? Shouldn't userid = authenticated_userid(request) be used instead to make sure the user is logged in? What's the advantage of using unauthenticated_userid(request)? Please help me understand what's going on here.

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  • Nullable Enum nullable type question

    - by Michael Kniskern
    I get the following compilation error with the following source code: Compilation Error: Type of conditional expression cannot be determined because there is no implicit conversion between '' and 'MyEnum' Source Code public enum MyEnum { Value1, Value2, Value3 } public class MyClass { public MyClass() {} public MyEnum? MyClassEnum { get; set; } } public class Main() { object x = new object(); MyClass mc = new MyClass() { MyClassEnum = Convert.IsDBNull(x) : null ? (MyEnum) Enum.Parse(typeof(MyEnum), x.ToString(), true) }; } How can I resolve this error?

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  • IDataServiceMetadataProvider / ResourceType.... what for dynamic types with no CLR type?

    - by TomTom
    Hello, I try to expose a database via ADO RIA for which we have only an ODBC based interface. The "database" is a server and new elements are developped all the time, so I would like the server to check metadata at start (using the odbc schema methods) and then expose what he finds via RIA services.... clients can the nregenerate when they need access to new elements. As such, I dont ahve any CLR types for all the tabled developped. ResourceType tableType = new ResourceType( typeof(object), ResourceTypeKind.EntityType, null, "Martini", table_name, false ); tableType.CanReflectOnInstanceType = false; I can somehow not put in NULl as CLR element type, and entering typeof(object) seems to result in reflection errors when trying to access the properties. Any documentation on how to do that? I dont really want to get into having types... though if I have to, I probably will dynamically generate some via bytecode emit.

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  • Maven nexus with jetty 7 and apache2 reverse proxy

    - by user613154
    Hello stackoverflow ! Here is my problem : i try to run a maven nexus behind an apache reverse proxy. As i have multiples war in my jetty, i want the nexus to run here : http://localhost:8080/nexus I made a jetty context file as follow : {jetty.home}/contexts/nexus.xml <?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd"> <Configure class="org.eclipse.jetty.webapp.WebAppContext"> <Set name="contextPath">/nexus</Set> <Set name="war"><SystemProperty name="jetty.home" default="."/>/webapps/nexus.war</Set> </Configure> My jetty connector in jetty.xml is as follow : <Call name="addConnector"> <Arg> <New class="org.eclipse.jetty.server.nio.SelectChannelConnector"> <Set name="host"><Property name="jetty.host" /></Set> <Set name="port"><Property name="jetty.port" default="8080"/></Set> <Set name="maxIdleTime">300000</Set> <Set name="Acceptors">2</Set> <Set name="forwarded">true</Set> <Set name="statsOn">false</Set> <Set name="confidentialPort">8443</Set> <Set name="lowResourcesConnections">20000</Set> <Set name="lowResourcesMaxIdleTime">5000</Set> </New> </Arg> </Call> I want http://maven.foo.com/ as an end point for the nexus, so i made this apache2 configuration file : ProxyRequests Off ProxyVia Off ProxyPreserveHost On <Proxy *> AddDefaultCharset off Order deny,allow Allow from all </Proxy> <VirtualHost *:80> ServerName maven.foo.com ProxyPass / http://localhost:8080/nexus/ ProxyPassReverse / http://localhost:8080/nexus/ ErrorLog ${APACHE_LOG_DIR}/error_nexus.log </VirtualHost> But i can't manage to make it work. The error message displayed in the browser is "The server has not found anything matching the request URI". I tried to read docs on jetty and apache web site, but didn't find information for mapping a subdomain "sub.foo.com" to a context "localhost:8080/sub" ... Any help welcome ! Thanks

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  • WebClient DownloadStringCompleted Never Fired in Console Application

    - by azamsharp
    I am not sure why the callback methods are not fired AT ALL. I am using VS 2010. static void Main(string[] args) { try { var url = "some link to RSS FEED"; var client = new WebClient(); client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(client_DownloadStringCompleted); client.DownloadDataCompleted += new DownloadDataCompletedEventHandler(client_DownloadDataCompleted); client.DownloadStringAsync(new Uri(url)); } catch (Exception ex) { Console.WriteLine(ex.Message); } } // THIS IS NEVER FIRED static void client_DownloadDataCompleted(object sender, DownloadDataCompletedEventArgs e) { Console.WriteLine("something"); } // THIS IS NEVER FIRED static void client_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e) { Console.WriteLine("do something"); var rss = XElement.Parse(e.Result); var pictures = from item in rss.Descendants("channel") select new Picture { Name = item.Element("title").Value }; foreach (var picture in pictures) { Console.WriteLine(picture.Name); Console.WriteLine(picture.Url); } }

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  • working with generic lifetime managers in unity config section

    - by Martin Bailey
    I have the following generic lifetime manager public class RequestLifetimeManager<T> : LifetimeManager, IDisposable { public override object GetValue() { return HttpContext.Current.Items[typeof(T).AssemblyQualifiedName]; } public override void RemoveValue() { HttpContext.Current.Items.Remove(typeof(T).AssemblyQualifiedName); } public override void SetValue(object newValue) { HttpContext.Current.Items[typeof(T).AssemblyQualifiedName] = newValue; } public void Dispose() { RemoveValue(); } } How do I reference this in the unity config section. Creating a type alias <typeAlias alias="requestLifeTimeManager`1" type=" UI.Common.Unity.RequestLifetimeManager`1, UI.Common" /> and specifying it as a lifetime manager <types> <type type="[interface]" mapTo="[concretetype]" > <lifetime type="requestLifeTimeManager`1" /> </type> </types> causes the following error Cannot create an instance of UI.Common.Unity.RequestLifetimeManager`1[T] because Type.ContainsGenericParameters is true. How do you reference generic lifetime managers ?

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  • Disable lazy loading by default in Entity Framework 4

    - by Mikey Cee
    It seems that lazy loading is enabled by default in EF4. At least, in my project, I can see that the value of dataContext.ContextOptions.LazyLoadingEnabled is true by default. I don't want lazy loading and I don't want to have to write: dataContext.ContextOptions.LazyLoadingEnabled = false; each time I get a new context. So is there a way to turn it off by default, say, across the whole project?

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  • php Undefined variable: article_id

    - by mmcgrail
    I keep getting this as a warning but but I don't care if its not set so how do I get rid of the warning and still achieve my goal here is the context var url_items = array("foo"); $article_id = db_escape($url_items[1]); $article = get_article($article_id); function get_article($article_id = NULL) {.....}

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  • How to get reviews success message in magento?

    - by Raul
    How to get revies success message in magento? Array ( [core] = Array ( [_session_validator_data] = Array ( [remote_addr] = 192.168.151.102 [http_via] = [http_x_forwarded_for] = [http_user_agent] = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4 ) [session_hosts] => Array ( [technova2] => 1 ) [messages] => Mage_Core_Model_Message_Collection Object ( [_messages:protected] => Array ( ) [_lastAddedMessage:protected] => Mage_Core_Model_Message_Success Object ( [_type:protected] => success [_code:protected] => Your review has been accepted for moderation [_class:protected] => [_method:protected] => [_identifier:protected] => [_isSticky:protected] => ) ) [just_voted_poll] => [visitor_data] => Array ( [] => [server_addr] => -1062692990 [remote_addr] => -1062693018 [http_secure] => [http_host] => technova2 [http_user_agent] => Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4 [http_accept_language] => en-US,en;q=0.8 [http_accept_charset] => ISO-8859-1,utf-8;q=0.7,*;q=0.3 [request_uri] => /~rahuls/sextoys/index.php/review/product/list/id/169/ [session_id] => 21bq2vtkup5m1gtghknlu1tit42c6dup [http_referer] => http://technova2/~rahuls/sextoys/index.php/review/product/list/id/169/ [first_visit_at] => 2010-06-16 05:49:56 [is_new_visitor] => [last_visit_at] => 2010-06-16 06:00:00 [visitor_id] => 935 [last_url_id] => 23558 ) [last_url] => http://technova2/~rahuls/sextoys/index.php/review/product/list/id/169/ ) [_cookie_revalidate] => 1276669711 [customer_base] => Array ( [_session_validator_data] => Array ( [remote_addr] => 192.168.151.102 [http_via] => [http_x_forwarded_for] => [http_user_agent] => Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4 ) [session_hosts] => Array ( [technova2] => 1 ) [id] => [messages] => Mage_Core_Model_Message_Collection Object ( [_messages:protected] => Array ( ) [_lastAddedMessage:protected] => ) ) [checkout] => Array ( [_session_validator_data] => Array ( [remote_addr] => 192.168.151.102 [http_via] => [http_x_forwarded_for] => [http_user_agent] => Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4 ) [session_hosts] => Array ( [technova2] => 1 ) ) [review] => Array ( [_session_validator_data] => Array ( [remote_addr] => 192.168.151.102 [http_via] => [http_x_forwarded_for] => [http_user_agent] => Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4 ) [session_hosts] => Array ( [technova2] => 1 ) [messages] => Mage_Core_Model_Message_Collection Object ( [_messages:protected] => Array ( ) [_lastAddedMessage:protected] => ) ) [store_default] => Array ( [_session_validator_data] => Array ( [remote_addr] => 192.168.151.102 [http_via] => [http_x_forwarded_for] => [http_user_agent] => Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4 ) [session_hosts] => Array ( [technova2] => 1 ) ) ) After posting the review i want to display the message: Your review has been accepted for moderation. which appears in the session array. but how to fetch it :(. please help. Thanks in advance.

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  • Android GridView Custom BaseAdapter ImageView ImageButton OnItemClick doesn´t work

    - by Marek
    i have a problem using a GridView with a CustomAdapter (extends BaseAdapter). any Activity implements the OnItemClickListener. if i use ImageView as item everything works fine, OnItemClick-Events will be fired/catched I have not found a useful example for a GridView with a custom BaseAdapter using ImageButton. Has anyone an idea? Many thanks in advantage! Snippets: class MyActivity extends Activity implements OnItemClickListener { ... @Override public void onCreate() { ... GridView gridview = (GridView) findViewById(R.id.gridview); gridview.setOnItemClickListener(this); gridview.setAdapter(new ImageButtonAdapter(this)); } ... @Override public void onItemClick(AdapterView<?> adapter, View view, int arg2, long arg3) { Log.e("onItemClick()", "arg2=" + arg2 + ", arg3=" + arg3); } } public class ImageButtonAdapter extends BaseAdapter { private Context mContext; public LayoutMenuAdapter(Context c) { mContext = c; } public int getCount() { return mThumbIds.length; } public Object getItem(int position) { return null; } public long getItemId(int position) { return 0; } public View getView(int position, View convertView, ViewGroup parent) { /* IF I USE THIS PART EVERYTHING WORKS FINE */ // ImageView imageView; // if (convertView == null) { // imageView = new ImageView(mContext); // imageView.setLayoutParams(new GridView.LayoutParams(100, 100)); // imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); // imageView.setPadding(0, 0, 0, 0); // imageView.setFocusable(false); // } else { // imageView = (ImageView) convertView; // } // imageView.setImageResource(mThumbIds[position]); // return imageView; /* IF I USE THIS PART NO THE ACTIVITY/LISTENER RECEIVES NO EVENT */ ImageButton imageButton; if (convertView == null) { imageButton = new ImageButton(mContext); imageButton.setLayoutParams(new GridView.LayoutParams(100, 100)); imageButton.setScaleType(ImageView.ScaleType.CENTER_CROP); imageButton.setPadding(0, 0, 0, 0); imageButton.setFocusable(false); } else { imageButton = (ImageButton) convertView; } imageButton.setImageResource(mThumbIds[position]); return imageButton; } // references to images private Integer[] mThumbIds = { R.drawable.media}; }

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  • Hiding iPhone Status Bar pulls my tableViews up by 20px

    - by JustinXXVII
    When doing an asynchronous HTTP request, I hide the iPhone status bar and animate in my own custom UIViewController to show upload status. So instead of seeing signal strength, carrier, time and battery life, the user gets messages based on the progress of the HTTP request. My status bar is exactly 20px high, and fits nicely where the status bar used to be. When the HTTP activity is done, the custom view animates out and the iPhone status bar animates back in. I would like to just avoid hiding the iPhone status bar completely, and instead bring my custom view ON TOP of the status bar. Currently, if I invoke my custom view animation and keep the iPhone status bar set to visible, my custom view is behind it. This is the code I have: -(void) animateStatusBarIn { CGRect statusFrame = CGRectMake(0.0f, -20.0f, 320.0f, 20.0f); UploadStatusBar *statusView = [[UploadStatusBar alloc] initWithNibName:@"UploadStatusBar" bundle:nil]; self.status = statusView; [statusView release]; status.view.frame = statusFrame; [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES]; [window addSubview:status.view]; [UIView beginAnimations:@"slideDown" context:nil]; [UIView setAnimationDuration:0.3]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(animationFinished:)]; status.view.frame = CGRectMake(0.0f, 0.0f, 320.0f, 20.0f); [UIView commitAnimations]; } -(void) animateStatusBarOut { [UIView beginAnimations:@"slideUp" context:nil]; [UIView setAnimationDuration:0.3]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(animationFinished:)]; status.view.frame = CGRectMake(0.0f, -20.0f, 320.0f, 20.0f); [UIView commitAnimations]; } -(void)animationFinished:(NSString *)name { if ([name isEqualToString:@"slideDown"]) { } if ([name isEqualToString:@"slideUp"]) { [[UIApplication sharedApplication]setStatusBarHidden:NO animated:YES]; [status.view removeFromSuperview]; } } Without the [[UIApplication sharedApplication]setStatusBarHidden:YES animated:YES] you can't see my custom view. How can I get my custom view to just appear on top of the status bar so I don't have to hide it? Thank you!

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  • JSP Page HttpServletRequest getAttribute Typecasting

    - by MontyBongo
    Hi There, Any ideas on the correct method of typecasting an Object out of a getAttribute request from a JSP page HttpServletRequest? I have googled but it seems that the common solution is just sticking suppresswarnings in your code... Something I would very much like to avoid. I currently have: HashMap<String, ArrayList<HashMap<String, String>>> accounts = (HashMap<String, ArrayList<HashMap<String, String>>>)request.getAttribute("accounts"); And the complier is giving me this warning: Unchecked cast from Object to HashMap Thanks in Advance!! MB.

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  • problem with two .NET threads and hardware access

    - by mack369
    I'm creating an application which communicates with the device via FT2232H USB/RS232 converter. For communication I'm using FTD2XX_NET.dll library from FTDI website. I'm using two threads: first thread continuously reads data from the device the second thread is the main thread of the Windows Form Application I've got a problem when I'm trying to write any data to the device while the receiver's thread is running. The main thread simply hangs up on ftdiDevice.Write function. I tried to synchronize both threads so that only one thread can use Read/Write function at the same time, but it didn't help. Below code responsible for the communication. Note that following functions are methods of FtdiPort class. Receiver's thread private void receiverLoop() { if (this.DataReceivedHandler == null) { throw new BackendException("dataReceived delegate is not set"); } FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK; byte[] readBytes = new byte[this.ReadBufferSize]; while (true) { lock (FtdiPort.threadLocker) { UInt32 numBytesRead = 0; ftStatus = ftdiDevice.Read(readBytes, this.ReadBufferSize, ref numBytesRead); if (ftStatus == FTDI.FT_STATUS.FT_OK) { this.DataReceivedHandler(readBytes, numBytesRead); } else { Trace.WriteLine(String.Format("Couldn't read data from ftdi: status {0}", ftStatus)); Thread.Sleep(10); } } Thread.Sleep(this.RXThreadDelay); } } Write function called from main thread public void Write(byte[] data, int length) { if (this.IsOpened) { uint i = 0; lock (FtdiPort.threadLocker) { this.ftdiDevice.Write(data, length, ref i); } Thread.Sleep(1); if (i != (int)length) { throw new BackendException("Couldnt send all data"); } } else { throw new BackendException("Port is closed"); } } Object used to synchronize two threads static Object threadLocker = new Object(); Method that starts the receiver's thread private void startReceiver() { if (this.DataReceivedHandler == null) { return; } if (this.IsOpened == false) { throw new BackendException("Trying to start listening for raw data while disconnected"); } this.receiverThread = new Thread(this.receiverLoop); //this.receiverThread.Name = "protocolListener"; this.receiverThread.IsBackground = true; this.receiverThread.Start(); } The ftdiDevice.Write function doesn't hang up if I comment following line: ftStatus = ftdiDevice.Read(readBytes, this.ReadBufferSize, ref numBytesRead);

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  • LINQ to SQL: To Attach or Not To Attach

    - by bradhe
    So I'm have a really hard time figuring out when I should be attaching to an object and when I shouldn't be attaching to an object. First thing's first, here is a small diagram of my (very simplified) object model. Edit: Okay, apparently I'm not allowed to post images...here you go: http://i.imgur.com/2ROFI.png In my DAL I create a new DataContext every time I do a data-related operation. Say, for instance, I want to save a new user. In my business layer I create a new user. var user = new User(); user.FirstName = "Bob"; user.LastName = "Smith"; user.Username = "bob.smith"; user.Password = StringUtilities.EncodePassword("MyPassword123"); user.Organization = someOrganization; // Assume that someOrganization was loaded and it's data context has been garbage collected. Now I want to go save this user. var userRepository = new RepositoryFactory.GetRepository<UserRepository>(); userRepository.Save(user); Neato! Here is my save logic: public void Save(User user) { if (!DataContext.Users.Contains(user)) { user.Id = Guid.NewGuid(); user.CreatedDate = DateTime.Now; user.Disabled = false; //DataContext.Organizations.Attach(user.Organization); DataContext.Users.InsertOnSubmit(user); } else { DataContext.Users.Attach(user); } DataContext.SubmitChanges(); // Finished here as well. user.Detach(); } So, here we are. You'll notice that I comment out the bit where the DataContext attachs to the organization. If I attach to the organization I get the following exception: NotSupportedException: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. This is not supported. Hmm, that doesn't work. Let me try it without attaching (i.e. comment out that line about attaching to the organization). DuplicateKeyException: Cannot add an entity with a key that is already in use. WHAAAAT? I can only assume this is trying to insert a new organization which is obviously false. So, what's the deal guys? What should I do? What is the proper approach? It seems like L2S makes this quite a bit harder than it should be...

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  • Python: Pretty printing a xml file directly from a tar.gz package

    - by EddyR
    This is the first Python script I've tried to create. I'm reading a xml file from a tar.gz package and then I want to pretty print it. However I can't seem to turn it from a file-like object to a string. I've tried to do it a few different ways including str(), tostring(), etc but nothing is working for me. For testing I just tried to print the string at "print myfile[0:200]" and it always generates "<tarfile.ExFileObject object at 0x10053df10>" import os import sys import tarfile from xml.dom.minidom import parseString tar = tarfile.open("data/ucd.all.flat.tar.gz", "r") getfile = tar.extractfile("ucd.all.flat.xml") myfile = str(getfile) print myfile[0:200] output = parseString(getfile).toprettyxml() print output tar.close()

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