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• PHP equivalent to Perl format function

  - by Dustin Hansen

  Is there an equivalent to Perl's format function in PHP? I have a client that has an old-ass okidata dotmatrix printer, and need a good way to format receipts and bills with this arcane beast. I remember easily doing this in perl with something like: format BILLFORMAT = Name: @>>>>>>>>>>>>>>>>>>>>>> Age: @### $name, $age . write; Any ideas would be much appreciated, banging my head on the wall with this one. O.o

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• $.(ajax) wrapper for Jquery - passing parameters to delegates

  - by gnomixa

  I use $.(ajax) function extensively in my app to call ASP.net web services. I would like to write a wrapper in order to centralize all the ajax calls. I found few simple solutions, but none address an issue of passing parameters to delegates, for example, if i have: $.ajax({ type: "POST", url: "http://localhost/TemplateWebService/TemplateWebService/Service.asmx/GetFoobar", data: jsonText, contentType: "application/json; charset=utf-8", dataType: "json", success: function(response) { var results = (typeof response.d) == 'string' ? eval('(' + response.d + ')') : response.d; OnSuccess(results, someOtherParam1, someOtherParam2); }, error: function(xhr, status, error) { OnError(); } }); The wrapper to this call would have to have the way to pass someOtherParam1, someOtherParam2 to the OnSuccess delegate...Aside from packing the variables into a generic array, I can't think of other solutions. How did you guys address this issue?

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• Determining which JavaScript/CSS browser features are required

  - by Alan Neal

  My website uses a variety of technologies, such as JQuery, new CSS definitions (e.g., moz-selection, -webkit-user-select), etc. The site works perfectly with Google Chrome and Safari, but has some quirkiness in Firefox, IE, and some of the other browsers. I want to write a script to check for necessary browser features but, with several thousand lines of code and CSS definitions, I'm not certain which features I should be looking for. Is there some sort of online analysis (similar to how JSLint operates) that would tell me which features my script and CSS files need? Are there tools (like FireBug) that provide this info?

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• Is there anyway to enable MultiSelect in the StyledTextCtrl

  - by John Baker

  I've noticed that the StyledTextControl (Scintilla basically) in wxWidgets has a great feature that allows multi-selections of text, just like TextMate. However wxRuby doesn't seem to have the function calls to support that feature. I'm wonder if there is a way to enable it or if there might be a way I could rewrite that wrapper to include that function. It seems strange that they would purposely omit that since they are seemingly pretty exhaustive on most functions calls. Any insight on this would be greatly appreciated. I'm trying to write an open source TextMate clone in Ruby and it's gonna be pretty hard without MultiSelect, I could probably hack something together but it'd be ugly. Thanks ahead of time.

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• Usage of WCF RIA Services, where the datasource isn't a classical (relational) database

  - by Kottan

  I want (have) to write a Silverlight and (or) ASP.NET based webapplication with SAP in the backend (in other words, the datasource is no classical database) . The usage of Silverlight and ASP.NET is a precondition. Is it possible to use the WCF RIA Services (and Silverlight) where the data-source are RFCs from SAP ? Makes this sense ? If yes, how the pattern/architecture could be shortly described ? Or should I take other architectures into considerations (usage of plain WCF services, WCF data services,...) ?

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• How to keep material on one double page in latex ?

  - by drasto

  I have two side document(so I use twoside option) in latex. I need to keep some material(text, pictures...) on one double page. In another words I want to allow page break from odd to even page but I want to prohibit breaks from even to odd page. I tried to write macro: \newcommand{\nl}{ \\ \ifodd\c@page \relax \else \nopagebreak \fi} and use it instead of \ (I don't use any other line breaks commands in my document) but it does not work. Thanks for all answers.

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• Best Practice - Validating Input In Simple GUI Application?

  - by Alex

  I'm writing a GUI app with wxwidgets in C++ for one of my programming classes. We have to validate input and throw custom exceptions if it doesn't meet certain conditions. My question is, what is best practice when it comes to this? Should I write a seperate function that checks for errors, and have my event handler's call that function? Or should I do my error-checking in my event handlers? Or does it really matter? Thanks!

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• Help Required on track active directory changes

  - by Faiasl Iqbal

  I am going to write a small software to track active directory changes. I need an expert opinion from you. I want to display information about What ( with before and after values), When, Where and Who of any change in AD. I am going to implement this by one of the following way 1. Change Notification Control 2. DirSync Control Both of these method give us the attribute that are changed and we can compare new values with some dump in SQL Server to get old values. My problem is how can I find “Who” has made this change. I have tried but there is no attribute “LastModifiedBy” in active directory. Please give your opinion how can I track who has made this change. --Faisal Iqbal

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• Grand Central Strategy for Opening Multiple Files

  - by user276632

  I have a working implementation using Grand Central dispatch queues that (1) opens a file and computes an OpenSSL DSA hash on "queue1", (2) writing out the hash to a new "side car" file for later verification on "queue2". I would like to open multiple files at the same time, but based on some logic that doesn't "choke" the OS by having 100s of files open and exceeding the hard drive's sustainable output. Photo browsing applications such as iPhoto or Aperture seem to open multiple files and display them, so I'm assuming this can be done. I'm assuming the biggest limitation will be disk I/O, as the application can (in theory) read and write multiple files simultaneously. Any suggestions? TIA

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• JQuery never reaches success or fail on aspx returning json.

  - by David

  Basicaly I have my aspx page doing <% Response.Clear(); Response.Write("{\"Success\": \"true\" }"); Response.End(); %> My JQuery code is function DoSubmit(r) { if (r == null || r.length == 0 || formdata == null || formdata.length == 0) return; for (i = 0; i < formdata.length; i++) { var fd = formdata[i]; r[fd.Name] = fd.Value; } r["ModSeq"] = tblDef.ModSeq; jQuery.ajax({ url: "NashcoUpdate.aspx" , succsess: doRow , error: DoSubmitError , complete: DoSubmitComplete , dataType: "json" , cache: false , data: r , type: "post" }) } When I call the DoSubmit() function every thing works but the doRow or DoSubmitError functions never get called only the DoSubmitComplete function. When I look at the response text in teh DoSubmitComple function it is {"Success": "true" } Every JSON tester I have tried says that this is valied JSON. What am I doing wrong here?

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• Mac dashboard widgets not loading external images

  - by andrhamm

  I set out to make a quick Mac OS X dashboard widget. I read the documentation and was pleased to find out they use simple HTML, JS, and CSS. I created my widget and it works when I open the .html file in Firefox, but it does not work when I install the widget to the dashboard. The widget is simple: it displays the most recent image from a weather web cam stream. The image URLs look like this: http://webcam.com/stream.jpg?1274213999617. The timestamp is appended to the URL and the server automatically responds with the latest image for that time. I did not write the server script. The widget appears to be loading correctly, but the web cam image will not load. Notice the blue question mark in the upper left. The image should appear over the square background image. Is there any special procedure for loading external images into a widget?

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• A better way to build this MySQL statement with subselects

  - by Corey Maass

  I have five tables in my database. Members, items, comments, votes and countries. I want to get 10 items. I want to get the count of comments and votes for each item. I also want the member that submitted each item, and the country they are from. After posting here and elsewhere, I started using subselects to get the counts, but this query is taking 10 seconds or more! SELECT `items_2`.*, (SELECT COUNT(*) FROM `comments` WHERE (comments.Script = items_2.Id) AND (comments.Active = 1)) AS `Comments`, (SELECT COUNT(votes.Member) FROM `votes` WHERE (votes.Script = items_2.Id) AND (votes.Active = 1)) AS `votes`, `countrys`.`Name` AS `Country` FROM `items` AS `items_2` INNER JOIN `members` ON items_2.Member=members.Id AND members.Active = 1 INNER JOIN `members` AS `members_2` ON items_2.Member=members.Id LEFT JOIN `countrys` ON countrys.Id = members.Country GROUP BY `items_2`.`Id` ORDER BY `Created` DESC LIMIT 10 My question is whether this is the right way to do this, if there's better way to write this statement OR if there's a whole different approach that will be better. Should I run the subselects separately and aggregate the information?

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• Counting consecutive items within MS SQL

  - by Greg

  Got a problem with a query I'm trying to write. I have a table that lists people that have been sent an email. There is a bit column named Active which is set to true if they have responded. But I need to count the number of consecutive emails the person has been inactive since either their first email or last active email. For example, this basic table shows one person has been sent 9 emails. They have been active within two of the emails (3 & 5). So their inactive count would be 4 as we are counting from email number 6 onwards. PersonID(int) EmailID(int) Active(bit) 1 1 0 1 2 0 1 3 1 1 4 0 1 5 1 1 6 0 1 7 0 1 8 0 1 9 0 Any pointers or help would be great. Regards Greg

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• pass an ID with hyperlik but cant get this ID value from a fk in one table when i click in insert

  - by susan

  Something strange happened in my codes, actually I have a hyperlink that pass ID value in a query string to second page.in second page i have 2 sql datasource that both these sql datasources should get this id value and pass it to a filter parameter to show sth in datalist. so in another word I have a first page that has an hyperlink read ID value from a datasource and pass it to second page.its like below: <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# "~/forumpage.aspx?ID="+Eval("ID")%>'><%#Eval("title")%> </asp:HyperLink> then in second page i have one sql datasource with a query like this ...where ID=@id and get this id in query string from db.it work great . but i have problem with second sql datasource in second page it has a query sth like below:...forms.question_id=@id then in sql reference both to query string as ID that get by first page in hyperlink. but when i click in insert button show me error with fk. error:Error:The INSERT statement conflicted with the FOREIGN KEY constraint "FK_forumreply_forumquestions". The conflict occurred in database "forum", table "dbo.forumquestions", column 'ID'. The statement has been terminated. my tables (question(ID,user_id(fk),Cat_id(fk),title,bodytext) (reply(ID,userr_id(fk),questionn_id(fk),titlereply,bodytestreply); When by hand in cb i gave a number in questionn_id like 1 it show me successful but when it want read from a filter by datasource this field face with problem. plzzzz help i really need skip from this part.and cause i am new i guess I cant understand the logic way clearly. <asp:SqlDataSource ID="sdsreply" runat="server" ConnectionString="<%$ ConnectionStrings:forumConnectionString %>" SelectCommand="SELECT forumreply.ID, forumreply.userr_id, forumreply.questionn_id, forumreply.bodytextreply, forumreply.datetimereply, forumquestions.ID AS Expr1, forumusers.ID AS Expr2, forumusers.username FROM forumquestions INNER JOIN forumreply ON forumquestions.ID = forumreply.questionn_id INNER JOIN forumusers ON forumquestions.user_id = forumusers.ID AND forumreply.userr_id = forumusers.ID where forumreply.questionn_id=@questionn_id"> <SelectParameters> <asp:QueryStringParameter Name="questionn_id" QueryStringField="ID" /> </SelectParameters> </asp:SqlDataSource> it is cb for second page in insert button: { if (Session["userid"] != null) { lblreply.Text = Session["userid"].ToString(); } else { Session["userid"]=null; } if (HttpContext.Current.User.Identity.IsAuthenticated) { lblshow.Text = string.Empty; string d = HttpContext.Current.User.Identity.Name; lblshow.Text =d + "???? ??? ?????." ; foreach (DataListItem item in DataList2.Items) { Label questionn_idLabel = (Label)item.FindControl("questionn_idLabel"); Label userr_idLabel = (Label)item.FindControl("userr_idLabel"); lbltest.Text = string.Empty; lbltest.Text = questionn_idLabel.Text; lblreply.Text = string.Empty; lblreply.Text = userr_idLabel.Text; } } else { lblshow.Text = "??? ??? ??? ??? ?? ?? ?????? ???? ???? ???? ????? ??? ??? ? ??? ????? ???????."; } } { if(HttpContext.Current.User.Identity.IsAuthenticated) { if (Page.IsValid) { SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["forumConnectionString"].ConnectionString); try { con.Open(); SqlCommand cmd = new SqlCommand("insert into forumreply (userr_id,questionn_id,bodytextreply,datetimereply)values(@userr_id,@questionn_id,@bodytextreply,@datetimereply)", con); cmd.Parameters.AddWithValue("userr_id",lblreply.Text); cmd.Parameters.AddWithValue("questionn_id",lbltest.Text); cmd.Parameters.AddWithValue("bodytextreply",txtbody.Text); cmd.Parameters.AddWithValue("datetimereply",DateTime.Now ); cmd.ExecuteNonQuery(); } catch (Exception exp) { Response.Write("<b>Error:</b>"); Response.Write(exp.Message); } finally { con.Close(); } lblmsg.Text = "???? ??? ?? ?????? ??? ?????.thx"; lblshow.Visible = false; //lbltxt.Text = txtbody.Text; txtbody.Text = string.Empty; } } else { lblmsg.Text = string.Empty; Session["rem"] = Request.UrlReferrer.AbsoluteUri; Response.Redirect("~/login.aspx"); } }

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• [wxWidgets] How to store wxImage into database, using C++?

  - by Thomas Matthews

  I have some wxImages and I would like to store them into a BLOB (Binary Large OBject) field in a MySQL database. There are no methods in wxImage nor wxBitmap for obtaining the binary data as an array of unsigned char so I can load into the database. My current workaround is to write the image to a temporary file, then load the BLOB field directly from the file. Is there a more efficient method to load and store a wxImage object into a MySQL BLOB field? I am using MySql C++ connector 1.05, MS Visual Studio 2008, wxWidgets and C++.

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• Vim: Goot AutoCompletion Plugin for Python and PHP

  - by Rafid K. Abdullah

  I use Vim with ctags for development. I found ctags to be very useful in going to definitions, but I don't know a good plugin to make use of ctags for clever auto completion. It seems that the default Vim auto completion is not good. When I write set omnifunc? in Vim, I get this: omnifunction=pythoncomplete#Complete I do know about OmniComplete for C++, but I don't know any good plugin for Python and PHP. Does anybody have an idea?

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• Java: conditional initialization?

  - by HH

  Ruby has conditional initialization. Apparently, Java does not or does it? I try to write more succintly, to limit the range as small as possible. import java.io.*; import java.util.*; public class InitFor{ public static void main(String[] args){ for(int i=7,k=999;i+((String h="hello").size())<10;i++){} System.out.println("It should be: hello = "+h); } } Errors Press ENTER or type command to continue InitFor.java:8: ')' expected for(int i=7,k=999;i+((String h="hello").size())<10;i++){} ^

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• Accessing constructor from abstract base class with reflection

  - by craesh

  Hi! I'm playing around with Java's Reflection. I have an abstract class Base with a constructor. abstract class Base { public Base( String foo ) { // do some magic } } I have some further classes extending Base. They don't contain much logic. I want to instantiate them with Base's constructor, without having to write some proxy contructors in those derived classes. And of course, I want to instantiate those derived classes with Reflection. Say: Class cls = SomeDerivedClass.class; Constructor constr; constr = cls.getConstructor( new Class[] { String.class } ); // will return null Class clsBase = Base.class; constr = clsBase.getConstructor( new Class[] { String.class } ); // ok Base obj = (Base) constr.newInstance( new Object[] { "foo" } ); // will throw InstantiationException because it belongs to an abstract class Any ideas, how I can instantiate a derived class with Base's constructor? Or must I declare those dumb proxy constructors?

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• document directory problem?

  - by senthilmuthu

  When i write Data(53MB ) to Document directory ,the data is not written when i check directly through application support path.i coded like this, - (BOOL)writeApplicationData:(NSData *)data toFile:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; if (!documentsDirectory) { NSLog(@"Documents directory not found!"); return NO; } NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; return ([data writeToFile:appFile atomically:YES]); } it works fine, but when i read the data using follwing code, the data is null, anyhelp pls? - (NSData *)applicationDataFromFile:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; NSData *myData = [[[NSData alloc] initWithContentsOfFile:appFile] autorelease]; return myData; }

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• VBA Excel To SqlServer

  - by adrianm

  What is the best way to write VBA code to connect to SQL Server 2005 from Excel? The users of the excel file might run XP, Vista, Win7 and I want to prevent driver installation as much as possible. My understanding is that XP uses MDAC while Vista/Win7 uses DAC. Does that mean that a reference to MDAC 2.8 will not work on a Vista machine and the other way around? Will my VBA code work on both if I don't add a reference and use late binding, e.g. CreateObject("ADODB.Connection")?

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• problem with closing sockets

  - by Samantha

  Hi, I'm trying to write a client/server program with threads. I close the socket once the connexion is finished. The servers gets plenty of new connexions, and the socket number (file descriptor) increases very quickly: after 5 minutes running I was already at around file descriptor number 800! Is this a normal thing? Do threads share file descriptors? When I do close(sockfd); is the number released immediatly or after a some time? PS: I used to do with fork(), and I didn't have this issue. Thanks

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• Monkeypatch a model in a rake task to use a method provided by a plugin?

  - by gduquesnay.mp

  During some recent refactoring we changed how our user avatars are stored not realizing that once deployed it would affect all the existing users. So now I'm trying to write a rake task to fix this by doing something like this. namespace :fix do desc "Create associated ImageAttachment using data in the Users photo fields" task :user_avatars => :environment do class User # Paperclip has_attached_file :photo ... <paperclip stuff, styles etc> end User.all.each do |user| i = ImageAttachment.new i.photo_url = user.photo.url user.image_attachments << i end end end When I try running that though I'm getting undefined method `has_attached_file' for User:Class I'm able to do this in script/console but it seems like it can't find the paperclip plugin's methods from a rake task.

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• Subclassing QGraphicsItemGroup

  - by onurozcelik

  Hi everyone I have system that has classes derived from QGraphicsWidget. I manage derived class objects in layouts on QGraphicsScene. Now I need a compound item that contain two or more QGraphicsWidget in it and also I need to put that item inside my layout. So I choose QGraphicsItemGroup and write I class like this. class CompositeItem : public QGraphicsItemGroup,public QGraphicsLayoutItem { ... }; I only implemented sizeHint function again. When add CompositeItem instance to layout it does not shown. What may cause this? Where I made wrong?

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• Is writing eSQL database independant or not?

  - by Robert Koritnik

  Using EF we can use LINQ to read data which is rather simple (especialy using fluent calls), but we have less control unless we write eSQL on our own. Is writing eSQL database actually data store independant code? So if we decide to change data store, can the same statements still be used? Is writing eSQL strings in your code pose any serious security threats similar to writing TSQL statements in plain strings? So we moved to SPs. Could we still mode eSQL scripts outside of code as well and use some other technique to make them a bit more secure?

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• How can I parse a C header file with Perl?

  - by Alphaneo

  Hi, I have a header file in which there is a large struct. I need to read this structure using some program and make some operations on each member of the structure and write them back. For example I have some structure like const BYTE Some_Idx[] = { 4,7,10,15,17,19,24,29, 31,32,35,45,49,51,52,54, 55,58,60,64,65,66,67,69, 70,72,76,77,81,82,83,85, 88,93,94,95,97,99,102,103, 105,106,113,115,122,124,125,126, 129,131,137,139,140,149,151,152, 153,155,158,159,160,163,165,169, 174,175,181,182,183,189,190,193, 197,201,204,206,208,210,211,212, 213,214,215,217,218,219,220,223, 225,228,230,234,236,237,240,241, 242,247,249}; Now, I need to read this and apply some operation on each of the member variable and create a new structure with different order, something like: const BYTE Some_Idx_Mod_mul_2[] = { 8,14,20, ... ... 484,494,498}; Is there any Perl library already available for this? If not Perl, something else like Python is also OK. Can somebody please help!!!

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