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  • rails paperclip multi upload

    - by mattherick
    hello! has somebody from you followed this tutorial? link text I really don´t now why, but I got following fault, when I went through the tutorial word by word: @album[photo_attributes]‘ is not allowed as an instance variable name somebody an idea why?

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  • How can I stop cruise control re-building after a failed build?

    - by RodeoClown
    I got back from the weekend to discover that somebody *ahem* had missed a file commit last thing Friday afternoon... Cruise control has been having fun, and tried to re-build every five minutes since then despite no further commits. This means that my colleagues and I have received approximately six hojillion emails from cruise control. A single fail email would be more than enough to notify us. Is there any way to stop cruise control building on failure, at least until a new commit occurs?

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  • Most Frequent 3 page sequence in a weblog

    - by Sundararajan S
    Given a web log which consists of fields 'User ' 'Page url'. We have to find out the most frequent 3-page sequence that users takes. There is a time stamp. and it is not guaranteed that the single user access will be logged sequentially it could be like user1 Page1 user2 Pagex user1 Page2 User10 Pagex user1 Page 3 her User1s page sequence is page1- page2- page 3

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  • Triangle rendering problem in directX

    - by Himadri
    I am working with directX 9. I have a problem while rendering triangles using drawprimitive. The problem is - When I am rendering the whole object made of several triangles, the triangle having all points on a single line shows gap in a whole closed object. I am showing the image below. The white dashed line is the problem.

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  • Is it possible to run a Java program inside a Flex application?

    - by Joshua
    I would like to be able to incorporate a simple game, written in Java as a component within a Flex Application. Am I crazy? Flex can display HTML, and SWF, it can also call JavaScript - but can I incorporate an applet somehow? I do NOT mean kludging it in as a sister component within a browser, but actually within the flex application itself, so that it could also run under Adobe Air, for instance.

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  • N2Cms, Adding a new property to a ContentPageBase class, corrupts the already entered data.

    - by Nour Sabouny
    i want to modify the ContentPageBase, in a functional site, i tried to add a property called for example (weight), but if there is an existing page in the database, the site will malfunction, and throws an Exception, of (Object reference not set to an instance of an object). how can i correct the already entered data ? public abstract class ContentPageBase : PageBase, ICommentable { [EditableTextBox("Weight", 10, ContainerName = Tabs.Details)] //newly added property. public virtual int Weight { get { return (int)GetDetail("Weight"); } set { SetDetail("Weight", value); } } }

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  • What is the meaning of method class in the class definition in Ruby?

    - by Steven Xu
    I'm familiar with function definitions and variable declarations being in class definitions: public class MyClass { public int myvar; public void doSomething() { } } But what does it "mean" in Ruby when a method is actually called in the class definition? This happens amply in Rails, for instance: class User < ActiveRecord::Base has_many :posts end What exactly does this do (at a lower level than "it adds some methods to the class")? How would I implement such a function (e.g., one that mixes in some additional methods)?

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  • MYSQL DELETE from a table [closed]

    - by Hossein
    Possible Duplicate: MySQL DELETE in a single table Hi, I have this table: userurltag(id,user,Url,tag) I want to remove rows that contain urls that are used by only one user, can someone help me? It seems that DELETE...(SELECT...) is not supported in Mysql.

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  • UML diagram for application architecture?

    - by fayer
    i'm trying to map my whole application in a UML diagram and i wonder what diagram type i should use. im not doing this in class level, rather from a bird eye's perspective. single application object (patterns: singleton)(examples: CodeIgniter application) that composes multiple module objects (patterns: singleton, facades)(examples: guestbook, addressbook) that compose multiple low level stand alone objects (examples: mysql mapper, doctrine mapper) that compose various 3rd and in-house libraries (examples: doctrine, solr, xml-parser) what UML diagram is suited for this kind of overview presentation? thanks

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  • Looking for icon shop

    - by citronas
    I'm looking for nice icons for my webapplications. Some of these applications are commercial applications. I want to polish them up by using nice looking icons, but where do I find specific icons/grafics? Does anybody know a icon shop, that allows me to buy single icons for commercial use? Payable via paypal or credit card.

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  • date representation in user interface

    - by Samuel
    Most of the sites capture the date (e.g. birth date) information as either a single entity (i.e via a calendar control) or instead as separate fields (date, month, year). Are there any benefits in showing them as separate fields? Are they represented in the database as DATE data type or as separate fields. I am just trying to understand the pros & cons of representing the date field.

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  • Managing a user's PHP session with Cocoa Touch

    - by Calvin L
    I'm building an iPhone app, which will allow users to log in to a PHP web server that authenticates the user and starts a session. My idea for managing a session is to create a singleton User class that has a sharedLogin method. Would it be prudent to store the session variable in the shared instance in order to maintain the session?

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  • Subroutine to apply Daylight Bias to display time in local DST?

    - by vfclists
    UK is currently 1 hour ahead of UTC due to Daylight Savings Time. When I check the Daylight Bias value from GetTimeZoneInformation it is currently -60. Does that mean that translating UTC to DST means DST = UTC + -1 * DaylightBias, ie negate and add? I thought in this case for instance adding Daylight Bias to UTC is the correct operation, hence requiring DaylightBias to be 60 rather than -60.

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  • How to create a true singleton in java?

    - by rjoshi
    I am facing a problem with my singleton when used across multiple class loaders. E.g Singleton accessed by multiple EJBs. Is there any way to create a singleton which has only one instance across all class loader? I am looking for pure java solution either using custom class loader or some other way.

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  • Oneliner to count the number of tabs in each line of a file

    - by JasonHorner
    I have a file that is tab delimited. I would like a powershell script that counts the number of tabs in each line. I came up with this: ${C:\tabfile.txt} |% {$_} | Select-String \t | Measure-Object | fl count it yields 3, Which is the number of lines in the file. any pointers to what I'm doing wrong? I would like it to print a single number for each line in the file.

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  • A Question on Encapsulation.

    - by Bragaadeesh
    Hi, I know that encapsulation is binding the members and its behavior in one single entity. And it has made me think that the members have to be private. Does this mean if a class having public members is not following 100% Encapsulation rule? Thanks

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  • JSON parsing using JSON.net

    - by vbNewbie
    I am accessing the facebook api and using the json.net library (newtonsoft.json.net) I declare a Jobject to parse the content and look for the specific elements and get their values. Everything works fine for the first few but then I get this unexplained nullexception error " (Object reference not set to an instance of an object) Now I took a look at the declaration but cannot see how to change it. Any help appreciated: Dim jobj as JObject = JObject.Parse(responseData) Dim message as string = string.empty message = jobj("message").tostring The error occurs at the last line above.

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  • Add text to every line in text file using PowerShell

    - by Joshua
    I'd like to add characters to the end of every line of text in a .txt document. #Define Variables $a = c:\foobar.txt $b = get-content $a #Define Functions function append-text { foreach-Object { add "*" } } #Process Code $b | append-text Something like that. Essentially, load a given text file, add a "*" the the end of every single line of text in that text file, save and close.

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