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  • Django: Only one of two fields can be filled in

    - by Giovanni Di Milia
    I have this model: class Journals(models.Model): jid = models.AutoField(primary_key=True) code = models.CharField("Code", max_length=50) name = models.CharField("Name", max_length=2000) publisher = models.CharField("Publisher", max_length=2000) price_euro = models.CharField("Euro", max_length=2000) price_dollars = models.CharField("Dollars", max_length=2000) Is there a way to let people fill out either price_euro or price_dollars? I do know that the best way to solve the problem is to have only one field and another table that specify the currency, but I have constraints and I cannot modify the DB. Thanks!

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  • jqgrid button editing

    - by Sasha
    Hi all, another question about jqgrid. I have a jqgrid table and i have a button in each row. When user clicks on that button, i need to call an action in my mvc controller and i need to change value of my object's field from true to false or opposite and then reload grid. What is the best way to implement this? Thanks.

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  • C# Win Forms Auto-Updating Controls

    - by Goober
    Hello! I have a datagridview and a combobox which get populated randomly with data. However, the new data is never displayed automatically. Someone mentioned the idea of invalidating the control to force the application to redraw it and thus iterate through the contents and populate the control with the new data. Does anyone know which is the best method for implementing auto-updating controls in windows forms applications? help greatly appreciated, regards.

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  • Store IPv6 in database

    - by poru
    What's the best practise to store IP's with PHP in MySQL database? There's a function called ip2long - but this is just for IPv4. But what about IPv6? I know a php function that is for IPv6 IP's, but it doesn't work on Windows with PHP < Version 5.3

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  • PHP to Mesh 2 PDF'S Together or not?

    - by Justin
    I have an already pre-designed PDF, and I would like to fill the PDF with some database information. So I'm curious if I should save the PDF into JPG's and render them out with the data on top of the image and re-create a PDF. Or is there a way to use the PDF already, and print data into the PDF that is already made? I am trying to figure out the best solution to generating this type of PDF. All thoughts would be greatly appreciated!

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  • submatrix from a matrix

    - by Grv
    A matrix is of size n*n and it consists only 0 and 1 find the largest submatrix that consists of 1's only eg 10010 11100 11001 11110 largest sub matrix will be of 3*2 from row 2 to row 4 please answer with best space and time complexity

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  • How to provide an own contentView for using -drawRect?

    - by mystify
    I want to use -drawRect: in an UITableViewCell subclass but it is covered by contentView. So the best option seems to be that I make a UIView subclass with my -drawRect: code and use that as contentView. But how could I feed my UITableViewCell subclass with that contentView? UITableViewCell creates that on its own when the contentView property is accessed. Would I simply override the getter method and then provide my own view there?

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  • Dealing with PHP server and MySQL server in different time zones

    - by Kyle Noland
    For those of us who use standard shared hosting packages, such as GoDaddy or Network Solutions, how do you handle datetime conversions when your hosting server (PHP) and MySQL server are in different time zones? Also, does anybody have some best practice advice for determining what time zone a visitor to your site is in and manipulating a datetime variable appropriately?

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  • Passing Validation exceptions via WCF REST

    - by Coppermill
    I am using WCF and REST, and I have complex types, which are working fine. Now I need to check for validation, I am thinking of using DataAnnotations e.g. public class Customer { [Required] public string FirstName {get;set;} } Now where the issue is how do I pass this validation down to the REST service? ALso I need to validate the object when it comes back, and throw an exception, if I am to throw an exception then what is the best way of doing this using REST?

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  • What's right for me: htAccess, form submittion, HTTP header authentication w/ PHP?

    - by Brook Julias
    I am creating a website with multiple sections--admin, client, user, and anonymous--each user group having less access then the next. I am wondering what form of authentication would be best for my use? I have heard the if you are just dealing with a websites then a web form is for you (because it's prettier). HTTP header authentication with PHP is said to get clunky/sloppy. htAcess is pretty much the hard core of various authentication methods I have looked up, but is it too much?

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  • Testing Mobile Sites

    - by Kyle Rozendo
    Hi All, We are about to launch a mobile site and are wondering what the best way of testing across as many mobile browsers as possible would be? This could be a company that does this sort of thing, or a way in which to do it in-house, we're not being picky. Thanks, Kyle

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  • WPF Composition/Agregation

    - by Eric.Lacroix
    Hi, I'm looking for documentation regarding WPF best practice for Compositing and agregating the user interface in a large project. I'm comming from a visual Inheriance world using Delphi and Winform. And I'm now try to replicate that kind of pattern well in fact reusability of those UI elements. I'm open to suggestion and reading.

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  • Database Table of Boolean Values

    - by guazz
    What's the best method of storing a large number of booleans in a database table? Should I create a column for each boolean value or is there a more optimal method? Employee Table IsHardWorking IsEfficient IsCrazy IsOverworked IsUnderpaid ...etc.

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  • PHP beautifiers (libraries for formatting code)

    - by takeshin
    Previously, my intention was to ask: Do you know any open source SQL formatter/beautifier library for PHP projects? But I think, I'd better ask: Which code formatting libraries written in PHP are the best? Let's list them all in one place. My types: for CSS syntax: Css Tidy for PHP: PEAR's PHP_Beautifier for HTML syntax: Tidy

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  • book style website, how to have different links on each page?

    - by dean nolan
    I am creating a website that is to have a book style layout. So you turn the pages and they fold over. I have this working in JQuery for images. What I am looking to do is have clickable links on the pages so that I can jump to a page further in the "book" or even to another site. Does anyone know the best way to go about this or have any examples to help out? Thanks

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  • Page cache - initiate the first page request in the server

    - by Tiago Teixeira
    Hi, I'm implementing Outputcache in my application and it works fine, but the first time always take a lot to load and the next following request will be faster... I would like to know if there is a way to initiate the page caching on the server side and serve the cached page upon the very first request, rather than have it triggered by the user one first time. Any ideas/suggestions will be very much welcome. Best regards, TT

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  • Deterministic Annealing Code

    - by wade
    I would like to find an open source example of a code for deterministic annealing. It can be in almost any language: C, C++, MatLab/Octave, Fortran. I have already found a MatLab code for simulated annealing, so MatLab would be best. Here is a paper that describes the algorithm: http://www.google.com/url?sa=t&source=web&ct=res&cd=1&ved=0CB8QFjAA&url=http%3A%2F%2Fvandamteaching.googlepages.com%2FABriefIntroductionToDeterministicAnn.pdf&ei=DiLiS8qZFI7AMozB1JED&usg=AFQjCNHLps7HRWXLNN5rAX5aJ5BsJbcHuQ&sig2=YSokUTOs0UszAFZ9TDiJgQ

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  • Programmatically convert a video to FLV

    - by Raibaz
    Hi all, i am currently working on a web application that needs to accept video uploaded by users in any format (.avi, .mov, etc.) and convert them to flv for playing in a flash-based player. Since the site is OpenCms-based, the best solution would be a ready-made plugin for OpenCms that allowed to upload and play videos doing the transcode operation in background, but just a set of Java classes to do the transcode would be great and then i could make the uploading form and playback part on my own.

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  • Set Android Gallery widget to show specific starting image

    - by Dalmazio Brisinda
    Hi all, I have a task where the user can select an image from a GridView representing a photo album, and from this I start a new activity which displays a Gallery widget to show the images of the photo album. However, I can't seem to get the Gallery widget to show the contents of the photo album with a given image as the starting point. Ideally I would like a Gallery#setStartingImage(int position) or something similar. Any ideas would be greatly appreciated. Best, Dalmazio

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  • Using compose with opacity

    - by Spoike
    What's the best way to compose layers in imagemagick with opacity? As I understand it the -compose switch doesn't take any opacity or alpha value. For example I'd like to take two images, much like in Photoshop, blend them together with the picture on top have an opacity set.

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  • As-You-Type-Searching with Core Data / NSFetchedResultsController

    - by Snej
    I implemented an as-you-type-searching (text search on single attribute) by fetching with performFetch: after each given character by the user. The performFetch: is running in a background thread to avoid keyboard freezes. But while typing many useless fetches are started. A NSOperationQueue might be an option, but I wonder if there are other approaches for this quite usual search behavior. What's best practice to notice when fetching is done and the table view is updated with the previous fetch to start a new fetch?

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