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  • preg_match() Unknown modifier '[' help

    - by Jonathan
    Hi, I have this regex for getting the YouTube video ID: (?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=[0-9]/)[^&\n]+|(?<=v=)[^&\n]+ I get it from there: http://stackoverflow.com/questions/2597080/regex-to-parse-youtube-yid The problem is I get preg_match() Unknown modifier '[' warning. I know I have to enclose the regex delimiters but I have no idea how to do this. Any help?

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  • How to create and Expression tree to do the same as "StartsWith"

    - by Jonathan
    Hi to all. Currently, I have this method to compare two numbers Private Function ETForGreaterThan(ByVal query As IQueryable(Of T), ByVal propertyValue As Object, ByVal propertyInfo As PropertyInfo) As IQueryable(Of T) Dim e As ParameterExpression = Expression.Parameter(GetType(T), "e") Dim m As MemberExpression = Expression.MakeMemberAccess(e, propertyInfo) Dim c As ConstantExpression = Expression.Constant(propertyValue, propertyValue.GetType()) Dim b As BinaryExpression = Expression.GreaterThan(m, c) Dim lambda As Expression(Of Func(Of T, Boolean)) = Expression.Lambda(Of Func(Of T, Boolean))(b, e) Return query.Where(lambda) End Function It works fine and is consumed in this way query = ETForGreaterThan(query, Value, propertyInfo) As you can see, I give it an IQueryable collection and it add a where clause to it, base on a property and a value. Y can construct Lessthan, LessOrEqualThan etc equivalents as Expression has this operators predefined. ¿How can I transform this code to do the same with strings? Expression don't give me a predefined operator like "contains" or "startwith" and I'm really noob with Expression trees. Thanks, and please Post your answer in C#/VB. Choose the one that make you feel more confortable.

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  • C#: Searching through arrays

    - by Jonathan Oberhaus
    I have a dvd app that stores dvds and blu-rays, I want to search the arrays by director. Below is the code for the inventory class I have seen many different ways to do this. There seems to be some debate as the best/most efficient way to accomplish this, any suggestions? Blockquote namespace MovieInventoryApplication { class Inventory { public Bluray[] BlurayMovies; public DVD[] DVDMovies; private int blurayCount; private int dvdCount; public Inventory() { BlurayMovies = new Bluray[5]; DVDMovies = new DVD[5]; blurayCount = 0; dvdCount = 0; } public void AddBluray() { String strTitle; int intReleaseYear; int intRunningTimeMinutes; String strDirector; int intPrice; int intRegionCode; try { Console.Write("Enter a title: "); strTitle = Console.ReadLine(); Console.Write("Enter a release year: "); intReleaseYear = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter the running time in minutes: "); intRunningTimeMinutes = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter the directors name: "); strDirector = Console.ReadLine(); Console.Write("Enter a rental price: "); intPrice = Convert.ToInt32(Console.ReadLine()); BlurayMovies[blurayCount] = new Bluray(strTitle, intReleaseYear, intRunningTimeMinutes, strDirector, intPrice); blurayCount++; Console.Write("Enter the DVD region code: "); intRegionCode = Convert.ToInt32(Console.ReadLine()); DVDMovies[dvdCount] = new DVD(strTitle, intReleaseYear, intRunningTimeMinutes, strDirector, intPrice, intRegionCode); dvdCount++; } catch (FormatException FormatException) { Console.WriteLine(FormatException.Message); Console.WriteLine("Please enter a number in this field."); } } public void AddDVD() { String strTitle; int intReleaseYear; int intRunningTimeMinutes; String strDirector; int intPrice; int intRegionCode; try { Console.Write("Enter a title: "); strTitle = Console.ReadLine(); Console.Write("Enter a release year: "); intReleaseYear = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter the running time in minutes: "); intRunningTimeMinutes = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter the directors name: "); strDirector = Console.ReadLine(); Console.Write("Enter a rental price: "); intPrice = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter the region code: "); intRegionCode = Convert.ToInt32(Console.ReadLine()); DVDMovies[dvdCount] = new DVD(strTitle, intReleaseYear, intRunningTimeMinutes, strDirector, intPrice, intRegionCode); dvdCount++; } catch (FormatException FormatException) { Console.WriteLine(FormatException.Message); Console.WriteLine("Please enter a number in this field."); } } public void ListAllBluray() { int position = 0; while (BlurayMovies[position] != null) { Console.WriteLine(position + " " + BlurayMovies[position].strTitle); position++; } } public void ListAllDVD() { int position = 0; while (DVDMovies[position] != null) { //position + 1 + " " + Console.WriteLine(position + " " + DVDMovies[position].strTitle); position++; } } public void BlurayInfo(int position) { Console.WriteLine("Title: {0}", DVDMovies[position].strTitle); Console.WriteLine("Release Year: {0}", DVDMovies[position].intReleaseYear); Console.WriteLine("Running Time (Minutes): {0}", DVDMovies[position].intRunningTimeMinutes); Console.WriteLine("Director: {0}", DVDMovies[position].strDirector); Console.WriteLine("Price: {0}", DVDMovies[position].intPrice); } public void DVDInfo(int position) { Console.WriteLine("Title: {0}", DVDMovies[position].strTitle); Console.WriteLine("Release Year: {0}", DVDMovies[position].intReleaseYear); Console.WriteLine("Running Time (Minutes): {0}", DVDMovies[position].intRunningTimeMinutes); Console.WriteLine("Director: {0}", DVDMovies[position].strDirector); Console.WriteLine("Price: {0}", DVDMovies[position].intPrice); Console.WriteLine("Region Code: {0}", DVDMovies[position].intRegionCode); } } }

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  • get iphone window background color

    - by Jonathan
    I've been looking at the Stanford University iphone videos on iTunes U. And saw the teacher trying to do something similar to this code but he realised and said it didn't work though I didn't get why: - (IBAction)flashPressed{ if (window.backgroundColor == [UIColor magentaColor]){ window.backgroundColor = [UIColor redColor]; }else { window.backgroundColor = [UIColor magentaColor]; } } Objective-C, windows based application. Not sure what else you need to know.

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  • password/login system in php

    - by Jonathan
    For a login system in php would this be a suitable outline of how it would work: users types in username and password, clicks login button. Checks if user exists in database, if it does, then retrieve the salt for that user hash the password and salt (would this be done on the client or server side? I think client side would be better, but php is server side so how would you do this?) check value against value in database, if the values match then user has typed in correct password and they are logged in.

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  • Automatic form generation software

    - by Jonathan
    Hi! I'm using winforms. I spend a lot of time drawing forms (maybe not a lot, but it is a boring task). To sum up... I want to develop a simple aplication that connect to a sql server database, let the user to select a table, and put the controls in a form for me (generate the designer code), based on the tipe of each column. Then my app will name each control like the column of the table, set the maxlengh property (if the type is varchar), and create a label with the same text near the control. If the column is a FK, then the app will draw a combobox and so on. I saw that Telerik Open ORM make something like this, but I only need a simple app for the IU Generation. If the same day I finish my little application I discover a tool that make the same... I will feel myself stupid :D Are there any tool out there that do this work for me? Thanks

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  • How do I make use of multiple cores in Large SQL Server Queries?

    - by Jonathan Beerhalter
    I have two SQL Servers, one for production, and one as an archive. Every night, we've got a SQL job that runs and copies the days production data over to the archive. As we've grown, this process takes longer and longer and longer. When I watch the utilization on the archive server running the archival process, I see that it only ever makes use of a single core. And since this box has eight cores, this is a huge waste of resources. The job runs at 3AM, so it's free to take any and all resources it can find. So what I need to do if figure out how to structure SQL Server jobs so they can take advantage of multiple cores, but I can't find any literature on tackling this problem. We're running SQL Server 2005, but I could certainly push for an upgrade if 2008 takes of this problem.

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  • pass string or data of local file between viewcontrollers

    - by Jonathan
    In my last question i asked how to best send a string from one view controller to another, both which were on a navigation stack: http://stackoverflow.com/questions/2898860/pass-string-from-tableviewcontroller-to-viewcontroller-in-navigation-stack However I just realised I can either pass the path to the file in the app's document's folder as the first (the table view) has already accessed the data in the file should I pass viewcontroller the data to the pushed VC?

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  • Custom API requirement

    - by Jonathan.Peppers
    We are currently working on an API for an existing system. It basically wraps some web-requests as an easy-to-use library that 3rd party companies should be able to use with our product. As part of the API, there is an event mechanism where the server can call back to the client via a constantly-running socket connection. To minimize load on the server, we want to only have one connection per computer. Currently there is a socket open per process, and that could eventually cause load problems if you had multiple applications using the API. So my question is: if we want to deploy our API as a single standalone assembly, what is the best way to fix our problem? A couple options we thought of: Write an out of process COM object (don't know if that works in .Net) Include a second exe file that would be required for events, it would have to single-instance itself, and open a named pipe or something to communicate through multiple processes Extract this exe file from an embedded resource and execute it None of those really seem ideal. Any better ideas?

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  • How do I simply hide a tooltip?

    - by Jonathan Garrido
    I have a image set as a link, with a title which is used for a caption in a lightbox. I need the "title" set in order to keep the caption for the lightbox, but I don't want the tool tip to pop up when I hover over the links. Anyone got a easy css fix? Or does this need to be done in Javascript?

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  • % confuses python raw sql query

    - by Jonathan
    Following this SO question, I'm trying to "truncate" all tables related to a certain django application using the following raw sql commands in python: cursor.execute("set foreign_key_checks = 0") cursor.execute("select concat('truncate table ',table_schema,'.',table_name,';') as sql_stmt from information_schema.tables where table_schema = 'my_db' and table_type = 'base table' AND table_name LIKE 'some_prefix%'") for sql in [sql[0] for sql in cursor.fetchall()]: cursor.execute(sql) cursor.execute("set foreign_key_checks = 1") Alas I receive the following error: C:\dev\my_project>my_script.py Traceback (most recent call last): File "C:\dev\my_project\my_script.py", line 295, in <module> cursor.execute(r"select concat('truncate table ',table_schema,'.',table_name,';') as sql_stmt from information_schema.tables where table_schema = 'my_db' and table_type = 'base table' AND table_name LIKE 'some_prefix%'") File "C:\Python26\lib\site-packages\django\db\backends\util.py", line 18, in execute sql = self.db.ops.last_executed_query(self.cursor, sql, params) File "C:\Python26\lib\site-packages\django\db\backends\__init__.py", line 216, in last_executed_query return smart_unicode(sql) % u_params TypeError: not enough arguments for format string Is the % in the LIKE making trouble? How can I workaround it?

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  • jquery for each function

    - by jonathan p
    I have added a show more or less function to a div - this all works fine however now i need to only allow this functionality if a element is over a certain height in this case. there are numerous classes of the same so i need to do the check on each element. although i am having problems getting it to work see code below : $(document).ready(function() { $(".less").hide(); $(".more").each(function() { var actualHeight = ($(this).parent().parent().find('.appsList').height()); if (actualHeight < 150) { $(".more").hide(); } }); $(".more").click(function() { var paragraphHeight = ($(this).parent().parent().find('.appsList').height()); if (paragraphHeight > 150) { $(this).parent().parent().find('.appsHolderBody').animate({height:(paragraphHeight + 100) }); $(this).hide('slow'); $(this).parent().find('.less').show(); } return false; }); $(".less").click(function() { $(this).parent().parent().find('.appsHolderBody').animate({height:190 }); $(this).hide('slow'); $(this).parent().find('.more').show(); return false; }); }); Any help would be greatly appreciated - please note when i am targeting the parent using .parent.parent i know its not pretty but could'nt get it to run using eq(4) for some reason. so the main problem is with this part of code $(".more").each(function() { var actualHeight = ($(this).parent().parent().find('.appsList').height()); if (actualHeight < 150) { $(".more").hide(); } it hides all of the elements $(".more") instead of the ones that match the condition. html as requested <div class="appsHolder"> <div class="appsHolderBody"> <h5 class="appTitle">General Apps</h5> <ul class="appsList"> <li class="mainAppList">Resource Manager</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Resource Manager</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Yet Another App</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Yet Another App</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Yet Another App</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Yet Another App</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Yet Another App</li> <li><a href="">Launch</a> <a href="">Info</a></li> <li class="mainAppList">Yet Another App</li> <li><a href="">Launch</a> <a href="">Info</a></li> </ul> </div> <div class="appsHolderExpander"> <a href="" class="more">More <img src="/wps/PA_applicationsintros/./img/downArrow.png" /></a> <a href="" class="less">Less <img src="/wps/PA_applicationsintros/./img/upArrow.png" /></a> </div> </div> <div class="appsHolderAdvertising"> <div class="appsHolderBody"> <h5 class="appTitle">Advertising Apps</h5> <ul class="appsList"> <li class="mainAppList">ATEX</li> <li><a href="">Launch</a> <a href="">Info</a></li> </ul> </div> <div class="appsHolderExpander"> <a href="" class="more">More <img src="/wps/PA_applicationsintros/./img/downArrow.png" /></a> <a href="" class="less">Less <img src="/wps/PA_applicationsintros/./img/upArrow.png" /></a> </div> </div> cheers in advance

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  • redirect images to php script

    - by Jonathan
    I want to be able to redirect all requests to navigate to an image to a php script which will then show the image but with a nav bar at the top. However using rewrite (im using IIS btw) means that I can't embed those images. Any help will be greatly appreciated.

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  • Download HTML from website URL in objective C (iphone)

    - by Jonathan
    I'm trying to get the HTML data of a website so that I can parse it. I have parsing bit sorted out but using the following code doesn't seem to work: NSData *data = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString:@"http://thewebsite.net"]]; Is this the way I should be doing it or is there another way?

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  • Boost: Although compiled, missing lib

    - by Jonathan
    I've compiled Boost and am using it in a Visual C++ project. At some point, I started getting the following error: 1>LINK : fatal error LNK1104: cannot open file 'libboost_filesystem-vc100-mt-sgd-1_45.lib' AFAIK I have the linker configuration set correctly. I've searched for the lib and the closest I found was: libboost_filesystem-vc100-mt-gd-1_45.lib (Notice the missing 's') What does the missing 's' represent? What do these similar yet different libs stand for? How come I'm missing it although I've compiled all of Boost?

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  • How much memory is my iphone app using (from Simulator)

    - by Jonathan
    I know this has something to do with Instruments, but well it's kind of confusing and searching for Instruments on Google doesn't help much. I'd like to know how well my app runs, like how much memory it uses. I just don't know where to find something like: "As close as we can tell from the simulator you'll app will currently be using xx MBs of RAM on a real iphone device." I need help on how to get this information.

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  • PHP: Redirect to the same page, changing $_GET.

    - by Jonathan
    Hi, I have this PHP piece of code that gets $_GET['id'] (a number) and do some stuff with this. When its finished I need to increase that number ($_GET['id']) and redirect to the same page but with the new number (also using $_GET['id']). I am doing something like this: $ID = $_GET['id']; // Some stuff here // and then: $newID = $ID++; header('Location: http://localhost/something/something.php?id='.$newID); exit; The problem here is that the browser stop me from doing it and I get this error from the browser (Firefox) : "The page isn't redirecting properly. Firefox has detected that the server is redirecting the request for this address in a way that will never complete." Some help here please!

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  • Sum and average over null values SQL Server 2008 Analysis Services

    - by Jonathan
    I have a simple problem, I think, but I have googled and can't find the solution. I have a cube that has MeasureA, MeasureB and MeasureC. Not all three measures have values for each record, sometimes they can be null, it's depending if it was applicable. Now for my totals, I need to average but the average must not take nulls into account. Any help will be much appreciated. When I view the measures, the null values show as zeros.

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  • Problem with Java Scanner sc.nextLine();

    - by Jonathan B
    Hi, sry about my english :) Im new to Java programming and i have a problem with Scanner. I need to read an Int, show some stuff and then read a string so i use sc.nextInt(); show my stuff showMenu(); and then try to read a string palabra=sc.nextLine(); Some one told me i need to use a sc.nextLine(); after sc.nextInt(); but i dont understand why do you have to do it :( Here is my code: public static void main(String[] args) { // TODO code application logic here Scanner sc = new Scanner(System.in); int respuesta = 1; showMenu(); respuesta = sc.nextInt(); sc.nextLine(); //Why is this line necessary for second scan to work? switch (respuesta){ case 1: System.out.println("=== Palindromo ==="); String palabra = sc.nextLine(); if (esPalindromo(palabra) == true) System.out.println("Es Palindromo"); else System.out.println("No es Palindromo"); break; } } Ty so much for your time and Help :D

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