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  • Modifying records in my migration throws an authlogic error

    - by nfm
    I'm adding some columns to one of my database tables, and then populating those columns: def self.up add_column :contacts, :business_id, :integer add_column :contacts, :business_type, :string Contact.reset_column_information Contact.all.each do |contact| contact.update_attributes(:business_id => contact.client_id, :business_type => 'Client') end remove_column :contacts, :client_id end The line contact.update_attributes is causing the following Authlogic error: You must activate the Authlogic::Session::Base.controller with a controller object before creating objects I have no idea what is going on here - I'm not using a controller method to modify each row in the table. Nor am I creating new objects. The error doesn't occur if the contacts table is empty. I've had a google and it seems like this error can occur when you run your controller tests, and is fixed by adding before_filter :activate_authlogic to them, but this doesn't seem relevant in my case. Any ideas? I'm stumped.

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  • Nant task sysinfo verbose - fails

    - by Broken Link
    Nant.core.dll : 0.86.2898.0 I can not get the following tag working on my machine. <sysinfo verbose="true" /> <sysinfo /> It gives me the following error. If I comment out those two lines I'm able to build. I google'd but not much help. Any idea? NAnt 0.85 (Build 0.85.1932.0; rc3; 4/16/2005) Copyright (C) 2001-2005 Gerry Shaw http://nant.sourceforge.net Buildfile: file:///C:/xyz/source/Default.build Target framework: Microsoft .NET Framework 1.1 Target(s) specified: all [tstamp] Thursday, July 30, 2009 3:10:24 PM. [sysinfo] Setting system information properties under sys.* BUILD FAILED Property name 'sys.env.Zen Managed Workstation' is invalid. Total time: 0 seconds.

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  • How to control a NSView, located in a dedicated NSWindow, from the main NSWindow designed to support

    - by Michael
    Hi, This is probably a simple problem for the high skilled Cocoa programmers, but I can't find how to control the graph in a separate window. I read carefully the Cocoa related books, go through many web notes,but I can't find a solution to my problem. The purpose is to use a dedicated window to draw the I=F(Vg) curves extracted by the GUI from a specific hardware. All the GUI and the hardware works fine ( thanks to the help provided by several members of stackoverflow) , but no way to send the parameters to the NSView to display the results. So far, the GUI class is based on a NSObject, the graphic class is NSView. Any idea, examples, links will be appreciated. Thank you so much. Michael

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  • How can you prevent an individual window being captured by Print-Screen?

    - by John
    I noticed a few times than when I print-screen while Media Player is running, the content is replaced with a grey rectangle. I've no idea if it's deliberate due to DRM, or some technical issue, but it struck me that being able to deliberately block screen-capture might be a useful feature in some scenarios. I am not looking to fix the problem, but replicate it! Is there some specific message each HWND gets for print-screen - does Windows do a special repaint or simply dump buffers to the clipboard? I guess I'd prefer to focus this on Win32 specifically, but as long as it's Windows-related then fine.

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  • Hibernate - moving annotations from property (method) level to field level

    - by kan
    How do I generate hibernate domain classes from tables with annotations at field level? I used Hibernate Tools project and generated domain classes from the tables in the database. The generated classes have annotations on the getter methods rather than at the field level. Kindly advice a way to generate domain classes that have the fields annotated. Is there any refactoring facility available in eclipse/IDEA etc.. to move the annotations from method level to field level? Appreciate your help and time.

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  • Eclipse RCP & tycho - The type org.eclipse.swt.widgets.Button cannot be resolved. It is indirectly referenced from required .class files

    - by Skip
    Situation: I have an Eclipse RCP Application, which I am trying to build with tycho plugin for Eclipse. When I am executing my Eclipse Application inside of the IDe - the Application is executed normally. When using tycho to build the Application - the following error is thrown: The type org.eclipse.swt.widgets.Button cannot be resolved. It is indirectly referenced from required .class files What I did : In other cases where a "missing requirenments" exception was thrown, which I found - a missing transitive plugin-dependency was the reason. In my case an SWT widget "Button" is missing, so I am trying to import swt. SWT is platform dependant so I am importing swt inside of the product, as described here. Anyway, during compilation the error occurs again. Question: Do someone have any Idea, how to solve this Problem?

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  • Best application for process flow with expandable attributes

    - by Marcus
    I am looking for the best software application to do the following I have a set of use cases that are in relationship to each other. I want to show an overview of this relationship. If the user desires the attributes for each use case (such as business rules, data elements, etc) should be expandable. This is potentially a large map which is the reason why the attributes should be expandable / collapsable. Finally all this needs to be printable. Any idea of the ideal application to do this? Thanks a lot in advance

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  • Racket regular-expression matching

    - by Inaimathi
    I'm trying to create a regex that matches the inverse of a certain string type (so, strings not ending in ".js", for example). According to the documentation, that should be the expression #rx"(?!\\.js$)", but it doesn't seem to work. To test it out, I have this function: (define (match-test regex) (map (lambda (text) (regexp-match? regex text)) '("foo.js" "bar.css" "baz.html" "mumble.gif" "foobar"))) (match-test #rx"\\.js$") returns (#t #f #f #f #f) as expected, but (match-test #rx"(?!\\.js$)") returns (#t #t #t #t #t), where I would expect (#f #t #t #t #t). What am I doing wrong, and how do I actually get a regex in Racket to express the idea "match anything which does not contain [x]"?

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  • Mapping class properties to generic columns in table .NET

    - by Tony_Henrich
    I have have a SQL Server table which has generic names like Text1, Text2.. etc. The table was designed like this because the same structure is used for different projects. I have a class in .NET which has properties. Say a Customer class has a property called FirstName. How can I do the mapping from FirstName to Text1 just once (central place) in the application so that I don't have to remember and hard code the mappings all over the app when I create the different DAL methods? For example, I want the app to know when I want to update, insert a FirstName, the DAL automatically uses Text1. Basically I don't have to remember which property goes to which column. The idea is so the developers do not map the properlies/columns in a wrong way. It's always consistent. Note: Database inserts, updates and deletes are allowed through stored procedures only.

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  • http/html/ajax: show result before site is completely processed

    - by chris
    hi! I am looking for a way to show in a webapp in front of a task a wait-message and after it hide the message. The task is running a longer time. I dont know if it is possible at all. The problem is, so far I can see, that the site will be returned to the users browser AFTER the task is completed because the task is part of the site as a inline code replaces by the webserver interpreter (no matter if php, perl or whatever). The only solution I can imagine is to parallel the task with threads or processes and requery the state with ajax in the website. Any idea to do it less complex? Thanks for help! regards chris

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  • how to make a NEWS -Reader app

    - by exiang
    hey, I'm a beginner and I'm trying to make a NEWS reader app. My idea is to make an app just like N.Y Times. The question is : how do I access the news database and display on my native app ? If I make an RSS reader kinda thing, will I be able to display the contents of the news feed on my native app itself ? Please, I'v been reading and trying different tactics but not really getting anywhere close to what I want. A simple tip from you guys could really help me. thx

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  • A database of questions with unambiguous numeric answers.

    - by dreeves
    I (and co-hackers) are building a sort of trivia game inspired by this blog post: http://messymatters.com/calibration. The idea is to give confidence intervals and learn how to be calibrated (when you're "90% sure" you should be right 90% of the time). We're thus looking for, ideally, thousands of questions with unambiguous numerical answers. Also, they shouldn't be too boring. There are a lot of random statistics out there -- eg, enclosed water area in different countries -- that would make the game mind-numbing. Things like release dates of classic movies are more interesting (to most people). Other interesting ones we've found include Olympic records, median incomes for different professions, dates of famous inventions, and celebrity ages. Scraping things like above, by the way, was my reason for asking this question: http://stackoverflow.com/questions/2611418/scrape-html-tables So, if you know of other sources of interesting numerical facts (in a parsable form) I'm eager for pointers to them. Thanks!

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  • IntPtr in 32 Bit OS, UInt64 in 64 bit OS

    - by Ngu Soon Hui
    I'm trying to do an interop to a C++ structure from C#. The structure ( in C# wrapper) is something like this [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct SENSE4_CONTEXT { public System.IntPtr dwIndex; //or UInt64, depending on platform. } The underlying C++ structure is a bit abnormal. In 32 bit OS, dwIndex must be IntPtr in order for the interop to work, but in 64 bit OS, it must be UInt64 in order for the interop to work. Any idea how to modify the above structure to make it work on both 32 and 64 bit OS?

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  • Separating weakly linked database schemas

    - by jldugger
    I've been tasked with revisiting a database schema we designed and use internally for various ticketing and reporting systems. Currently there exists about 40 tables in one Oracle database schema supporting perhaps six webapps. However, there's one unifying relationship amongst them all: a rooms table describing the room. Room name, purpose and other data are thrown into a shared table for each app. My initial idea was to pull each of these applications into a separate database, and perform joins between a given database and the room database. But I've discovered this solution prevents foreign key constraints in SQL Server 2005. It seems silly to duplicate one table for each app and keep those multiple copies synchronized. Should I just leave everything in one large DB, or is there something else I can do separate the tables without losing FK constraints?

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  • how to handle CONNECT http request

    - by davidshen84
    hi, i want to implement a simple web server for my self. i can handle GET and POST request now. but i have no idea what to do with CONNECT request. CONNECT request is send when the client is going to access a https site. according to http://muffin.doit.org/docs/rfc/tunneling_ssl.html, it says i should response '200 Connection established'. but i got 'A TLS packet with unexpected length was received' on the client. the wiki described about the ssl handshake protocol, but it did not mention how to implement it.

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  • Is unit testing the definition of an interface necessary?

    - by HackedByChinese
    I have occasionally heard or read about people asserting their interfaces in a unit test. I don't mean mocking an interface for use in another type's test, but specifically creating a test to accompany the interface. Consider this ultra-lame and off-the-cuff example: public interface IDoSomething { string DoSomething(); } and the test: [TestFixture] public class IDoSomethingTests { [Test] public void DoSomething_Should_Return_Value() { var mock = new Mock<IDoSomething>(); var actualValue = mock.Expect(m => m.DoSomething()).Returns("value"); mock.Object.DoSomething(); mock.Verify(m => DoSomething()); Assert.AreEqual("value", actualValue); } } I suppose the idea is to use the test to drive the design of the interface and also to provide guidance for implementors on what's expected so they can draw good tests of their own. Is this a common (recommended) practice?

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  • set current user in asp.net mvc

    - by Tomh
    Hey guys, I'm not sure if this is the best way to do it, but I want to keep a user object alive during all requests of the current user. From reading several resources I learned that you should create your own IPrinciple which holds this. But I don't want to trigger the database every authentication request. Any recommendations on how to handle this? Is caching the db request a good idea? protected void Application_AuthenticateRequest(Object sender, EventArgs e) { HttpCookie authCookie = Request.Cookies[FormsAuthentication.FormsCookieName]; if (authCookie != null) { FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value); User user; using (HgDataContext hg = new HgDataContext()) { if (Session["user"] != null) { user = (from u in hg.Users where u.EmailAddress == authTicket.Name select u).Single(); } else { user = Session["user"] as User; } } var principal = new HgPrincipal(user); Context.User = principal; } }

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  • What do the different columns (of letters) mean for the svn merge output?

    - by James
    The output of SVN merge has 4 columns of letters listed before the file name. I understand the meaning of the letters (mostly) but I can't find any information on the meanings of the columns and so only have a vague understanding based on context. Can anyone point me to the documentation on this? Based on context I've been able to infer that column: Is about text changes to a file Seems to be related to use of the svn ignore command on a folder (or maybe it's just properties of the file?) I've never seen a letter in the third column and hence I have no idea what it means. Might be tree conflicts? This is the one I'm mostly worried about because I don't know how to handle it yet.

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  • Web Service in c# - "This web service is using http://tempuri.org/ as its default namespace."

    - by glenatron
    I've created a web service using Visual Studio ( 2005 - I know I'm old school ) and it all compiles fine but when it opens I get warned thus: This web service does not conform to WS-I Basic Profile v1.1. And furthermore: This web service is using http://tempuri.org/ as its default namespace. Which would be fine except my service begins thus: [WebService(Namespace = "http://totally-not-default-uri.com/servicename")] Searching the entire solution folder for "tempuri" returns nothing. I can't find it mentioned in any configuration page acessible from Visual Studio. And yet it's right there in the wsdl:definitions list for the xmlns:tns attribute on the web service descriptor page when I view it through the browser and as targetNamespace in the same tag. I'm viewing it using Visual Studio's "debug" mode with the built in server from that. Seems like something has got cached somewhere but I can't work out what and where- I've tried stopping and restarting the server, cleaning and rebuilding the service and going through the associated text config files with a text editor but no dice. Any idea what is going on?

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  • Call function under object from string

    - by sam
    I have a script which creates a drag-and-drop uploader on the page from a div. My DIV will look something like <div class="well uploader" data-type="image" data-callback="product.addimage" data-multi="1"></div> Then I'll have a function something like var product = new function(){ /* Some random stuff */ this.addimage = function(image){ alert('W00T! I HAZ AN IMAGE!'); } /* More random stuff */ } When the upload is complete, I need to call the function in data-callback (In this example, product.addimage). I know with global functions you can just do window[callback]() but I'm not sure the best way to do this with functions under objects. My first thought was to do something like* var obj = window; var parts = callback.split('.'); for(part in parts){ obj = obj[parts[part]]; } obj(); but that seems a bit dirty, is there a better way without using eval because eval is evil? I haven't tested this so I have no idea if it will work

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  • Dynamic openrowset in T-Sql Function or viable alternative?

    - by IronicMuffin
    I'm not quite sure how to phrase this. Here is the problem: I have 1-n items that I need to join to a different system (AS400) to get some data. The openrowset takes forever if I specify the where criteria outside of the openrowset, e.g.: select * from openrowset('my connection string', 'select code, myfield from myTable') where code = @code My idea was to create a function that takes in the item number and uses dynamic sql to inject it into the openrowset string, a la: declare @cmd varchar(1000) set @cmd = 'select * from openrowset('my connection string', ''select code, myfield from myTable where code = ' + @code + ''')' Apparently I can't use the insert.. exec.. strategy inside of a function. Is there any better way to achieve this? I was going to use this in joins where I needed the external data using cross apply. I'm not married to tvf and cross apply, but I do need a method of getting this data quickly. Thanks for any help.

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  • Python: Plot some data (matplotlib) without GIL

    - by BandGap
    Hello all, my problem is the GIL of course. While I'm analysing data it would be nice to present some plots in between (so it's not too boring waiting for results) But the GIL prevents this (and this is bringing me to the point of asking myself if Python was such a good idea in the first place). I can only display the plot, wait till the user closes it and commence calculations after that. A waste of time obviously. I already tried the subprocess and multiprocessing modules but can't seem to get them to work. Any thoughts on this one? Thanks

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  • Update multiple rows with one query?

    - by kavoir.com
    I found something that works with updating one field at here: http://www.karlrixon.co.uk/articles/sql/update-multiple-rows-with-different-values-and-a-single-sql-query/ UPDATE person SET name = CASE id WHEN 1 THEN 'Jim' WHEN 2 THEN 'Mike' WHEN 3 THEN 'Precious' END WHERE id IN (1,2,3) My question is how to update more than one field? Such as: UPDATE person SET name = CASE, sex = CASE id WHEN 1 THEN 'Jim', 'female' WHEN 2 THEN 'Mike' 'male' WHEN 3 THEN 'Precious', 'male' END WHERE id IN (1,2,3) Which doesn't work of course. Tried a few other combination and failed. Any idea? Thanks!

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  • Chipmunk physics: Velocity question

    - by Johannes Jensen
    I'm making an iPhone game where the main actor is a ball that rolls depending on the device's accelerometer rotation. I haven't started on this part of the coding yet, but I was wondering if you guys had a nice way of solving this: I tried looking a little into chipmunk, and I noticed that bodies have the property v, which is a point containing x and y velocities. I was thinking it'd be a bad idea to just do like: playerBody->v = ccp(accelerometer.x * 5, playerBody->v.y); because it'd just roll up of walls and stuff, is there a better solution to do this?

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  • How can I set the line style of a specific cell in a QTableView?

    - by Bob Nelson
    I am working with a QT GUI. I am implementing a simple hex edit control using a QTableView. My initial idea is to use a table with seventeen columns. Each row of the table will have 16 hex bytes and then an ASCII representation of that data in the seventeenth column. Ideally, I would like to edit/set the style of the seventeenth column to have no lines on the top and bottom of each cell to give the text a free flowing appearance. What is the best way to approach this using the QTableView?

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