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Search found 594 results on 24 pages for 'philipp der rautenberg'.

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  • Prevent wsgi from modifying 401 responses.

    - by Gary van der Merwe
    If I have the following pylons controller: def challange(self): response.status = '401 Unauthorized' return 'You are not logged in.' I would expect to see 'You are not logged in.' But I see : Unauthorized This server could not verify that you are authorized to access the document you requested. Either you supplied the wrong credentials (e.g., bad password), or your browser does not understand how to supply the credentials required. WSGI Server I have disabled the pylons error middleware. But the wsig server seems to be modifying the response. How do I stop this?

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  • Problem with between join for sqlalchemy orm relation.

    - by Gary van der Merwe
    I'm trying to create a relation that has a between join. Here is a shortish example of what I'm trying to do: #!/usr/bin/env python import sqlalchemy as sa from sqlalchemy import orm from sqlalchemy.engine.base import Engine from sqlalchemy.ext.declarative import declarative_base metadata = sa.MetaData() Base = declarative_base(metadata=metadata) engine = sa.create_engine('sqlite:///:memory:') class Network(Base): __tablename__ = "network" id = sa.Column(sa.Integer, primary_key=True) ip_net_addr_db = sa.Column('ip_net_addr', sa.Integer, index=True) ip_broadcast_addr_db = sa.Column('ip_broadcast_addr', sa.Integer, index=True) # This can be determined from the net address and the net mask, but we store # it in the db so that we can join with the address table. ip_net_mask_len = sa.Column(sa.SmallInteger) class Address(Base): __tablename__ = "address" ip_addr_db = sa.Column('ip_addr', sa.Integer, primary_key=True, index=True, unique=True) Network.addresses = orm.relation(Address, primaryjoin=Address.ip_addr_db.between( Network.ip_net_addr_db, Network.ip_broadcast_addr_db), foreign_keys=[Address.ip_addr_db]) metadata.create_all(engine) Session = orm.sessionmaker(bind=engine) Network() I you run this, you get this error: ArgumentError: Could not determine relation direction for primaryjoin condition 'address.ip_addr BETWEEN network.ip_net_addr AND network.ip_broadcast_addr', on relation Network.addresses. Do the columns in 'foreign_keys' represent only the 'foreign' columns in this join condition ? The answer to that question is Yes, but I cant figure out how to tell it that

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  • Weird generics compile error.

    - by Jouke van der Maas
    I have two classes, a base class and a child class. In the base class i define a generic virtual method: protected virtual Bar Foo<T() where T : Bar {} Then in my child class i try to do this: protected override BarChild Foo() // BarChild inherits Bar { return base.Bar<T as BarChild() } Visual studio gives this weird error: The type 'T' cannot be used as type parameter 'T' in the generic type or method 'Foo()'. There is no boxing conversion or type parameter conversion from 'T' to 'Bar'. Repeating the where clause on the child's override also gives an error: Constraints for override and explicit interface implementation methods are inherited from the base method, so they cannot be specified directly So what am i doing wrong here?

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  • Is a red-black tree my ideal data structure?

    - by Hugo van der Sanden
    I have a collection of items (big rationals) that I'll be processing. In each case, processing will consist of removing the smallest item in the collection, doing some work, and then adding 0-2 new items (which will always be larger than the removed item). The collection will be initialised with one item, and work will continue until it is empty. I'm not sure what size the collection is likely to reach, but I'd expect in the range 1M-100M items. I will not need to locate any item other than the smallest. I'm currently planning to use a red-black tree, possibly tweaked to keep a pointer to the smallest item. However I've never used one before, and I'm unsure whether my pattern of use fits its characteristics well. 1) Is there a danger the pattern of deletion from the left + random insertion will affect performance, eg by requiring a significantly higher number of rotations than random deletion would? Or will delete and insert operations still be O(log n) with this pattern of use? 2) Would some other data structure give me better performance, either because of the deletion pattern or taking advantage of the fact I only ever need to find the smallest item? Update: glad I asked, the binary heap is clearly a better solution for this case, and as promised turned out to be very easy to implement. Hugo

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  • How to 'do' ByVal in C#

    - by Jouke van der Maas
    As I understand it, C# passes parameters into methods by reference. In vb.net, you can specify this with ByVal and ByRef. The default is ByVal. Is this for compatibility with vb6, or is it just random? Also, how can I specify what to use in C#? I kind of like the idea of passing parameters by value.

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  • Another word for Business Logic?

    - by herzmeister der welten
    What is another good word for Business Logic? Software might also run in civil service offices or for hobbyists, so I never felt that comfortable with using that term in certain modules and documentation. App Logic is too specific as well, because logic modules might also be used in services.

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  • How to set up source control in VS2010

    - by Jouke van der Maas
    Hi, I want to set up source control for my project, but it seems like I need a server for this. I've never done this before, and I couldn't find anything helpfull yet. Is there any way to host a server locally so Visual studio can use it? Or do you know any online (free) servers I can use? By the way, if source control is not actually what i should use for keeping track of changes in my files, please suggest a better option. Thanks in advance.

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  • How to call an event when the user "finally" selects an item in a list?

    - by herzmeister der welten
    When a user clicks once on an item in a Grid or a ListBox, that item is usually selected, hence most UI frameworks have a onSelected event or the like for that. However, how can we generally call the next step when a user "finally" selects an item by e.g. double clicking an entry? You know when some popup might appear in the context of the selected item and the user can do further stuff. Strangely enough, I think I have never seen a word for that in any UI framework. onPicked, onAccepted, onChosen, onFinallySelected, onResult? All kinda awkward or too special. Any other ideas?

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  • Code Contracts: Do we have to specify Contract.Requires(...) statements redundantly in delegating me

    - by herzmeister der welten
    I'm intending to use the new .NET 4 Code Contracts feature for future development. This made me wonder if we have to specify equivalent Contract.Requires(...) statements redundantly in a chain of methods. I think a code example is worth a thousand words: public bool CrushGodzilla(string weapon, int velocity) { Contract.Requires(weapon != null); // long code return false; } public bool CrushGodzilla(string weapon) { Contract.Requires(weapon != null); // specify contract requirement here // as well??? return this.CrushGodzilla(weapon, int.MaxValue); } For runtime checking it doesn't matter much, as we will eventually always hit the requirement check, and we will get an error if it fails. However, is it considered bad practice when we don't specify the contract requirement here in the second overload again? Also, there will be the feature of compile time checking, and possibly also design time checking of code contracts. It seems it's not yet available for C# in Visual Studio 2010, but I think there are some languages like Spec# that already do. These engines will probably give us hints when we write code to call such a method and our argument currently can or will be null. So I wonder if these engines will always analyze a call stack until they find a method with a contract that is currently not satisfied? Furthermore, here I learned about the difference between Contract.Requires(...) and Contract.Assume(...). I suppose that difference is also to consider in the context of this question then?

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  • Can I pass events like key strokes to another control in Silverlight?

    - by herzmeister der welten
    Can I pass events like key strokes to another control in Silverlight? Imagine I'm in a custom control that contains a Textbox and a Treeview. I'm listening to a Key event for the TextBox. When the user pushes the Arrow Up or Arrow Down key, I want the Treeview to behave as if it's itself who received that event, i.e. it should move the current selection up or down. The user shouldn't lose focus on the TextBox though so that they can continue typing. Is this possible? I don't want to set the selection manually on the Treeview because it has no easy MoveSelectionUp() or MoveSelectionDown() method, so I would have to duplicate that functionality which is not so trivial especially when the tree is databound and loads nodes on demand.

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  • Create unique identifier for different row-groups

    - by Max van der Heijden
    I want to number certain combinations of row in a dataframe (which is ordered on ID and on Time) tc <- textConnection(' id time end_yn number abc 10 0 1 abc 11 0 2 abc 12 1 3 abc 13 0 1 def 10 0 1 def 15 1 2 def 16 0 1 def 17 0 2 def 18 1 3 ') test <- read.table(tc, header=TRUE) The goal is to create a new column ("journey_nr") that give a unique number to each row based on the journey it belongs to. Journeys are defined as a sequence of rows per id up until to end_yn == 1, also if end_ynnever becomes 1, the journey should also be numbered (see the expected outcome example). It is only possible to have end_yn == 0 journeys at the end of a collection of rows for an ID (as shown at row 4 for id 3). So either no end_yn == 1 has occured for that ID or that happened before the end_yn == 0-journey (see id == abc in the example). I know how to number using the data.table package, but I do not know which columns to combine in order to get the expected outcome. I've searched the data.table-tag on SO, but could not find a similar problem. Expected outcome: id time end_yn number journey abc 10 0 1 1 abc 11 0 2 1 abc 12 1 3 1 abc 13 0 1 2 def 10 0 1 3 def 15 1 2 3 def 16 0 1 4 def 17 0 2 4 def 18 1 3 4

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  • When inheriting a control in Silverlight, how to find out if its template has been applied?

    - by herzmeister der welten
    When inheriting a control in Silverlight, how do I find out if its template has already been applied? I.e., can I reliably get rid of my cumbersome _hasTemplateBeenApplied field? public class AwesomeControl : Control { private bool _hasTemplateBeenApplied = false; public override void OnApplyTemplate() { base.OnApplyTemplate(); this._hasTemplateBeenApplied = true; // Stuff } private bool DoStuff() { if (this._hasTemplateBeenApplied) { // Do Stuff } } }

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  • how do i install intermediate certificate

    - by getmizanur
    I have installed private key (pem encoded) and public key certificate (pem encoded) on amazon load balancer however when i check the ssl with site test tool (http://www.networking4all.com/en/support/tools/site+check/), i get the following error Error while checking the SSL Certificate!! Unable to get the local issuer of the certificate. The issuer of a locally looked up certificate could not be found. Normally this indicates that not all intermediate certificates are installed on the server. i converted crt file to pem using these command from this tutorial openssl x509 -in input.crt -out input.der -outform DER openssl x509 -in input.der -inform DER -out output.pem -outform PEM during setting up of amazon load balancer only option i left out was certificate chain (pem encoded) however this was optional. could this be cause of my issue? and if so i how do i create certificate chain? for the last question i have tried googling however i'm getting more confused than before. please help many thanks in advance. UPDATE @all thanks for the helpful advice. if you make request to verisign they will give you a certificate chain however this chain includes public crt, intermediate crt and root crt. make sure to remove the public crt from your certificate chain (which is the top most certificate) before adding it to your certification chain box of your amazon load balancer. if you are making https request from an android app then above instruction may not work for older android os such as 2.1 and 2.2. to make it work on older android os [https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR657&actp=LIST&viewlocale=en_US]. on this link click on "retail ssl" tab and then click on "secure site" "CA Bundle for Apache Server". copy and past these intermediate certs into certificate chain box. just incase if you have not found it here is the direct link [https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR1409] if you are using geo trust certificates then solution is much the same for android devices however you need to copy and past their intermediate certs for android. PS: sorry for the long urls however "new users can only post a maximum of two hyperlinks"

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  • Oracle @Munich Business School

    - by Maria Sandu
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Last Wednesday, Lisa from the Graduate Recruitment team and her colleague Philipp from Sales visited the Munich Business School to talk about IT challenges, Sales and Career Opportunities at Oracle. Although the talk started at 6:30 pm, the audience of about 100 students was still attentive and curious. First they were provided with some facts about Oracle, then Philipp went into detail and took them through current IT challenges like ‘Social’, ‘Mobile’, ‘Information’ and ‘Cloud’ and how Oracle solutions can help facing these challenges. He also demonstrated what kind of prerequisites and qualifications are required to become a successful Sales person. When talking about his own career, the audience got even more anxious to hear what he would tell them. Finally, students asked questions on career opportunities across Europe or on other topics they were interested in. If you’re interested in talking to us in person, connect with us on Facebook to get the latest information about events we’re attending and schools we’re visiting. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • SharePoint Workflow: how to update the item without triggering the workflow again

    - by Philipp Schmid
    I have a SharePoint workflow which is running whenever the item changes. The workflow communicates with an external REST service. If the service returns a string, I want to update one of the field values with that string. Unfortunately, this update will trigger another instance of the workflow for this item once the current workflow terminates. I end up with an infinite loop! How I can prevent this from happening? SPListItem has Update(), UpdateOverwriteVersion(), and SystemUpdate() methods but none of them seem to prevent subsequent workflows from being triggered. I could inspect the last modified timestamp of the item and terminate the workflow if the last update happened within a certain timespan, but I am looking for a more robust solution.

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  • Synchronizing scroll positions for 2 WPF DataGrids

    - by Philipp Schmid
    I am trying to synchronize the horizontal scroll position of 2 WPF DataGrid controls. I am subscribing to the ScrollChanged event of the first DataGrid: <toolkit:DataGrid x:Name="SourceGrid" ScrollViewer.ScrollChanged="SourceGrid_ScrollChanged"> I have a second DataGrid: <toolkit:DataGrid x:Name="TargetGrid"> In the event handler I was attempting to use the IScrollInfo.SetHorizontalOffset, but alas, DataGrid doesn't expose IScrollInfo: private void SourceGrid_ScrollChanged(object sender, ScrollChangedEventArgs e) { ((IScrollInfo)TargetGrid).SetHorizontalOffset(e.HorizontalOffset); // cast to IScrollInfo fails } Is there another way to accomplish this? Or is there another element on TargetGrid that exposes the necessary IScrollInfo to achieve the synchronization of the scroll positions? BTW, I am using frozen columns, so I cannot wrap both DataGrid controls with ScrollViewers.

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  • Add the path _vti_bin/Lists.asmx to an ASP.NET MVC 2 web application

    - by Philipp Schmid
    I am trying to add the path /_vti_bin/Lists.asmx to my ASP.NET MVC 2 web application. I am registering the route as follows: routes.IgnoreRoute("{resource}.asmx/{*pathInfo}"); routes.Add(new Route("_vti_bin/Lists.asmx", new ListsHandler())); where ListHandler is defined as: public sealed class ListsHandler : IRouteHandler { #region IRouteHandler Members public IHttpHandler GetHttpHandler(RequestContext requestContext) { throw new NotImplementedException(); } #endregion } But when I start the MVC application and try to navigate to http://localhost:8888/_vti_bin/Lists.asmx, I get an HTTP 404 error, rather than an exception raised. Is this even possible in MVC? Do I need to add an Lists.asmx ASPX web service file to my project in a particular place (I cannot create the _vti_bin folder in the Visual Studio project)?

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  • Using Linux vs Windows for development

    - by Philipp Lenssen
    On my servers I run everything on Linux/ Apache, but for offline preparation before upload of the projects I'm using Windows (Vista) with a local Apache/ WAMP, PHP, Python, GD_image installation and so on. My question, would it be much easier in terms of setting up a good environment if I were to use Linux, e.g. Ubuntu distribution, as development OS for these things? Would you know some pros and cons when it comes to Windows vs Linux in terms of web development? (As I'm using mostly web apps these days, switching the OS might be less of a problem. I would need a good replacement for my image editor, though, as I prefer Corel PhotoPaint and PSP4 over Gimp, last time I tried.)

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  • Call to CFC via Ajax-POST does not work

    - by Philipp
    We have the following problem: A CFC-method that is called from AJAX suddenly redirects the request to cfcexplorer instead of executing the request. The strange thing is, that the problem only occurs when we make the ajax call via "POST" method, like this: // This will return the HTTP Status header: // Location: http://url.to:80/CFIDE/componentutils/cfcexplorer.cfc?method=getcfcinhtml&name=web.ajax&path=/web/ajax.cfc $.post( "http://url.to/ajax.cfc", {method: "test"}, function(res) { alert("ajax.cfc POST return:" + res); } ); Making the same request as "GET" request works perfectly: // This will call the method "test" of web/ajax.cfc $.get( "http://url.to/ajax.cfc", {method: "test"}, function(res) { alert("ajax.cfc GET return:" + res); } ); This is the ajax.cfc file (dummy file): <cfcomponent> <cffunction name="test" access="remote" returntype="Any" returnformat="JSON"> <cfset j = {}> <cfset j.data = "this is the data"> <cfreturn serializeJson(j)> </cffunction> </cfcomponent> What really puzzles us is that the request did work in the past (we have a lot of code all making ajax calls via POST and CF-code that expects FORM-data to be present, so we cannot simply change the method to GET) Maybe there was some setting that has changed or similar...

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  • Experience/Articles about "decision tree" documentation?

    - by Philipp Keller
    I'm running an "defect fixing" group (developers do 2 weeks operations, then rotate). I want to build up a documentation "how to deal with problem x" - basically a decision tree: Is the problem in part x of the web site? Yes: Is the problem occurring in all browsers? Yes: ... No: ... No: ... The documentation should be written and extended by the people using it. Do you know of any book/article describing how that is best done, or is there a software (Mac OS X) that helps doing that?

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  • Branch by abstraction: Are there "examples" of how it can be done?

    - by Philipp Keller
    Having read Martin Fowlers "Feature Branch" and Flickrs "Flipping Out" (http://www.liip.to/flippingout) I guess there are a few guys out there who do: all (or most) development on Trunk release Trunk regularly (assuming updating your web site) not-yet-approved or not-yet-finished features should not be visible/have no impact on the regular user I've got 2 questions: granted - Flickr's article seems to work for "frontend code". But how is it cleaned up? Don't the ifs pile up? how does this work for the more "backend part"? Thinking of database changes, or model refactoring. Working with ifs doesn't seem to work - and copy-pasting classes for small adaptions also seems awkward. Are there any articles out there answering these 2 questions?

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