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• php file force download

  - by droidus

  When I use this code to download this image (only used for testing purposes), I open the downloaded image, and all it gives me is an error. i tried it in chrome. opening it with windows photo viewer, it says that it can't display the picture because it is empty??? here is the code: <?PHP // Define the path to file $file = 'http://www.media.lonelyplanet.com/lpi/12553/12553-11/469x264.jpg'; if(!file) { // File doesn't exist, output error die('file not found'); } else { header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename='.basename($file)); header('Content-Transfer-Encoding: binary'); header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header('Content-Length: ' . filesize($file)); ob_clean(); flush(); readfile($file); exit; } ?>

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• How to identify ideas and concepts in a given text

  - by Nick

  I'm working on a project at the moment where it would be really useful to be able to detect when a certain topic/idea is mentioned in a body of text. For instance, if the text contained: Maybe if you tell me a little more about who Mr Balzac is, that would help. It would also be useful if I could have a description of his appearance, or even better a photograph? It'd be great to be able to detect that the person has asked for a photograph of Mr Balzac. I could take a really naïve approach and just look for the word "photo" or "photograph", but this would obviously be no good if they wrote something like: Please, never send me a photo of Mr Balzac. Does anyone know where to start with this? Is it even possible? I've looked into things like nltk, but I've yet to find an example of someone doing something similar and am still not entirely sure what this kind of analysis is called. Any help that can get me off the ground would be great. Thanks!

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• I installed XAMPP in a virtual drive and now I can't run its services. Why?

  - by Haris

  Hi, The description is quite long. Please spend some time to read it. ^:)^ I have an old PHP application and I'm trying to test and debug it. Unfortunately, the application uses important data so I can't just click this and that. Now, what I'm trying to do is create a copy of the application in a different computer. From now on, I will call the computer running my original PHP application as 'Computer A' and the computer which I'm going to use to run the copy of the application as 'Computer B'. To prevent missing link problems since the application contains static paths, such in images or tags, I have to copy all files and folder related to my PHP application from Computer A to the same path in Computer B. Unfortunately, Computer B only has drive C while Computer A has drive D and the files of my PHP application is located in 'D:\xampp\htdocs' in Computer A. OK, now I have to create drive D in computer B. At first, I tried to create a second partition in Computer B by using PowerQuest Partition Magic 8, but somehow Partition Magic doesn't run in Computer B. I have tried to reinstall it but it still doesn't run. So, another alternative is to create a virtual drive. That is what I did. I created a virtual drive by running the 'subst' command in Command Prompt. The virtual drive is D and it refers to a directory, which is 'C:\Virtual'. After I have drive D in Computer B, I installed XAMPP there. The installation was successful. Now, I also have 'D:\xampp\htdocs' in Computer B. However, when I ran the Apache, MySQL, or Filezilla service, I receive an error message "Error 3: The system cannot find the file specified.". In Computer B, there is no IIS or process using the port 80. What should I do? Please help me. Many thanks in advance, Haris

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• How do I pass parameters between request-scoped beans

  - by smayers81

  This is a question that has been bothering me for sometime. My application uses ICEFaces for our UI framework and Spring 2.5 for Dependency Injection. In addition, Spring actually maintains all of our backing beans, not the ICEFaces framework, so our faces-config is basically empty. Navigation is not even really handled through navigation-rules. We perform manual redirects to new windows using window.open. All of our beans are defined in our appContext file as being request-scoped. I have Page ABC which is backed by BackingBeanABC. Inside that backing bean, I have a parameter say: private Order order; I then have Page XYZ backed by BackingBeanXYZ. When I redirect from page ABC to page XYZ, I want to transfer the 'order' property from ABC to XYZ. The problem is since everything is request-scoped and I'm performing a redirect, I am losing the value of 'description'. There has got to be an easier way to pass objects between beans in request scope during a redirect. Can anyone assist with this issue?

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• Create serial number column in telerik mvc grid

  - by Jayaraj

  I could create a grid with telerik mvc <% Html.Telerik().Grid(Model) .Name("ProductGrid") .Columns(columns => { columns.Bound(h => h.ProductName).Width("34%"); columns.Bound(h => h.Description).Width("60%"); columns.Bound(h => h.ProductID).Format(Html.ImageLink("Edit", "Products", new { Id = "{0}" }, "/Content/images/icon_edit.gif", "", new { Id = "edit{0}" }, null).ToString()).Encoded(false).Title("").Sortable(false).Width("3%"); columns.Bound(h => h.ProductID).Format(Html.ImageLink("Delete", "Products", new { Id = "{0}" }, "/Content/images/icon_delete.gif", "", new { onclick = string.Format("return confirm('Are you sure to delete this add on?');") },null).ToString()).Encoded(false).Title("").Sortable(false).Width("3%"); }) .EnableCustomBinding(true) .DataBinding(databinding => databinding.Ajax().Select("_Index", "ProductGrid")) .Pageable(settings => settings.Total((int)ViewData["TotalPages"]) .PageSize(10)) .Sortable() .Render(); %> but I need to add a serial number column in telerik grid.How can i do this?

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• How to handle refunds or rebates via a payment processor?

  - by Tai Squared

  I need to handle online payments and am trying to choose a payment processor. One requirement is to handle refunds and rebates to the customer. These won't always be at the time of sale, and not for the entire amount of the purchase. Is this something all payment processors handle? I don't want to have to do this manually as there may be many rebates, and they may be for relatively small amounts. I see PayPal has a refund API, but other parts of their site talk about sending a refund within 60 days. Is this something also required by the API? Amazon FPS also has a refund API that seems a bit more flexible. The Google Checkout refund has an amout field, but it's unclear to me if you can do a partial refund as the description reads "The refund-order command instructs Google Checkout to refund the buyer for a particular order." What are some things to look out for when looking for a payment processor that can handle rebates and refunds? Is there always a time limit in issuing these refunds? Is using a merchant account better for this type of process? I was hoping to avoid that due to the increased cost and complexity, but would consider it if it meets all of my requirements. Update It appears the refund process is fairly simple and handled by all processors. Is there any additional information on rebates? I would like to avoid a process of sending live checks to customers, but I will have to send rebates in some small amounts that may be a few months after the initial purchase.

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• Using the Search API with Sharepoint Foundation 2010 - 0 results

  - by MB

  I am a sharepoint newbee and am having trouble getting any search results to return using the search API in Sharepoint 2010 Foundation. Here are the steps I have taken so far. The Service Sharepoint Foundation Search v4 is running and logged in as Local Service Under Team Site - Site Settings - Search and Offline Availability, Indexing Site Content is enabled. Running the PowerShell script Get-SPSearchServiceInstance returns TypeName : SharePoint Foundation Search Description : Search index file on the search server Id : 91e01ce1-016e-44e0-a938-035d37613b70 Server : SPServer Name=V-SP2010 Service : SPSearchService Name=SPSearch4 IndexLocation : C:\Program Files\Common Files\Microsoft Shared\Web Server Exten sions\14\Data\Applications ProxyType : Default Status : Online When I do a search using the search textbox on the team site I get a results as I would expect. Now, when I try to duplicate the search results using the Search API I either receive an error or 0 results. Here is some sample code: using Microsoft.SharePoint.Search.Query; using (var site = new SPSite(_sharepointUrl, token)) { // FullTextSqlQuery fullTextSqlQuery = new FullTextSqlQuery(site) { QueryText = String.Format("SELECT Title, SiteName, Path FROM Scope() WHERE \"scope\"='All Sites' AND CONTAINS('\"{0}\"')", searchPhrase), //QueryText = String.Format("SELECT Title, SiteName, Path FROM Scope()", searchPhrase), TrimDuplicates = true, StartRow = 0, RowLimit = 200, ResultTypes = ResultType.RelevantResults //IgnoreAllNoiseQuery = false }; ResultTableCollection resultTableCollection = fullTextSqlQuery.Execute(); ResultTable result = resultTableCollection[ResultType.RelevantResults]; DataTable tbl = new DataTable(); tbl.Load(result, LoadOption.OverwriteChanges); } When the scope is set to All Sites I retrieve an error about the search scope not being available. Other search just return 0 results. Any ideas about what I am doing wrong?

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• Problem facing to run ruport from other machine

  - by shabi

  I am using SQL Server 2008 Reporting Services and set mode remotely. All is going fine and reports running on my machine. I am not using report viewer control, but switch to browser. Problem is that when I access the report from any other system in browser by providing required url. I m getting the following premission error: Server Error in /ReportServer Application. Access is denied: Description: An error is occured while accessing the resources required to serve for this request. You might have not premission to view the requested resources. Error message: 401.3 : You dont have the premission to view this directory or page using the creditinals you supplied. I have go through all step of this article "http://msdn.microsoft.com/en-us/library/ms365170.aspx" and set remotly premession but after all changes no success and getting same error. Please some one can tell me or provide step list, that how can I set the premession? that the report can run from other machine. Quick and detail response will

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• [iOS] becomeFirstResponder: automatically scroll to the UIControl that becomes first responder

  - by Manni

  I have a grouped UITableViewController with one section and many rows. Each cell consists of two elements: a UILabel with a description and a UITextField for an input. A form, I would say. On the bottom is a button "Next" the go to the next view. But before that, I validate the UITextField's: if the user hasn't filled a field, this field should get the focus, so that the user sees that he needs to enter something. I tried with this: [inputField becomeFirstResponder]; Remember, the button I pressed is on the bottom of my view and imagine that the UITextField is on the top. In this situation, the field doesn't get the focus because it is too far away. Now when I scroll up slowly and the field gets visible, the field becomes first responder and gets the cursor :-) Conclusion: The becomeFirstResponder worked, but does not exactly do what I wanted to. I don't want to scroll up with my finger, the field should get the focus and visible automatically. Is there any way to "jump" directly to my field? Use an alternative to becomeFirstResponder? Scroll to my field automatically? Thanks for your help!

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• how can I solve a problem with andWhere with symfony/doctrine and odbc?

  - by JaSk

  While following the symfony tutorial (1.4.4) I'm getting an error with ODBC/mssql 2008. SQLSTATE[07002]: COUNT field incorrect: 0 [Microsoft][SQL Server Native Client 10.0]COUNT field incorrect or syntax error (SQLExecute[0] at ext\pdo_odbc\odbc_stmt.c:254). Failing Query: "SELECT [j].[id] AS [j__id], [j].[category_id] AS [j__category_id], [j].[type] AS [j_type], [j].[company] AS [j_company], [j].[logo] AS [j_logo], [j].[url] AS [j_url], [j].[position] AS [j_position], [j].[location] AS [j_location], [j].[description] AS [j__description], [j].[how_to_apply] AS [j__how_to_apply], [j].[token] AS [j__token], [j].[is_public] AS [j__is_public], [j].[is_activated] AS [j__is_activated], [j].[email] AS [j__email], [j].[expires_at] AS [j__expires_at], [j].[created_at] AS [j__created_at], [j].[updated_at] AS [j__updated_at] FROM [jobeet_job] [j] WHERE ([j].[category_id] = '2' AND [j].[expires_at] ?) ORDER BY [j].[expires_at] DESC" I've narrowed the problem to a line that uses parameters public function getActiveJobs(Doctrine_Query $q = null) { if (is_null($q)) { $q = Doctrine_Query::create() -from('JobeetJob j'); } //$q->andWhere('j.expires_at > \''.date('Y-m-d H:i:s', time()).'\'');<-- this works $q->andWhere('j.expires_at > ?', date('Y-m-d H:i:s', time())); //<-- this line has problem $q->addOrderBy('j.expires_at DESC'); return $q->execute(); } can anyone point me in the right direction? Thanks.

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• How to access Youtube_it ruby query results?

  - by spectro

  I am trying to implement the youtube_it youtube api wrapper for ruby and have it working except I'm stumped as to how the query results should be accessed. Here is my query: client.videos_by(:query => "penguin", :max_results => 1) Submitting request [url=http://gdata.youtube.com/feeds/api/videos?max-results=1&start-index=1&vq=penguin]. => #<YouTubeIt::Response::VideoSearch:0xb6c41b14 @feed_id="http://gdata.youtube.com/feeds/api/videos", @updated_at=Wed Nov 03 18:01:39 UTC 2010, @videos=[#<YouTubeIt::Model::Video:0xb6c424d8 @thumbnails=[#<YouTubeIt::Model::Thumbnail:0xb6c6b694 @url="http://i.ytimg.com/vi/oSbLpQEZP1Y/2.jpg", @width=120, @height=90, @time="00:01:34">, #<YouTubeIt::Model::Thumbnail:0xb6c6b248 @url="http://i.ytimg.com/vi/oSbLpQEZP1Y/1.jpg", @width=120, @height=90, @time="00:00:47">, #<YouTubeIt::Model::Thumbnail:0xb6c6a988 @url="http://i.ytimg.com/vi/oSbLpQEZP1Y/3.jpg", @width=120, @height=90, @time="00:02:21">, #<YouTubeIt::Model::Thumbnail:0xb6c69e34 @url="http://i.ytimg.com/vi/oSbLpQEZP1Y/0.jpg", @width=320, @height=240, @time="00:01:34">], @categories=[#<YouTubeIt::Model::Category:0xb6ca5d6c @term="Music", @label="Music">], @noembed=false, @racy=false, @favorite_count=7862, @duration=188, @author=#<YouTubeIt::Model::Author:0xb6c9942c @name="wili", @uri="http://gdata.youtube.com/feeds/api/users/wili">, @updated_at=Tue Nov 02 08:45:25 UTC 2010, @longitude=nil, @position=nil, @view_count=1682350, @html_content="penguin", @media_content=[#<YouTubeIt::Model::Content:0xb6c770d4 @url="http://www.youtube.com/v/oSbLpQEZP1Y?f=videos&app=youtube_gdata", @duration=188, @format=#<YouTubeIt::Model::Video::Format:0xb656d108 @name=:swf, @format_code=5>, @default=true, @mime_type="application/x-shockwave-flash">, #<YouTubeIt::Model::Content:0xb6c766d4 @url="rtsp://v5.cache3.c.youtube.com/CiILENy73wIaGQlWPxkBpcsmoRMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp", @duration=188, @format=#<YouTubeIt::Model::Video::Format:0xb656d11c @name=:rtsp, @format_code=1>, @default=false, @mime_type="video/3gpp">, #<YouTubeIt::Model::Content:0xb6c75d38 @url="rtsp://v8.cache3.c.youtube.com/CiILENy73wIaGQlWPxkBpcsmoRMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp", @duration=188, @format=#<YouTubeIt::Model::Video::Format:0xb656d0f4 @name=:three_gpp, @format_code=6>, @default=false, @mime_type="video/3gpp">], @description="penguin", @latitude=nil, @title="penguin", @published_at=Mon May 08 18:11:01 UTC 2006, @player_url="http://www.youtube.com/watch?v=oSbLpQEZP1Y&feature=youtube_gdata_player", @rating=#<YouTubeIt::Model::Rating:0xb6c5eb4c @min=1, @max=5, @average=4.676985, @rater_count=2746>, @keywords=["pigloo", "penguin"], @video_id="http://gdata.youtube.com/feeds/api/videos/oSbLpQEZP1Y", @where=nil>], @total_result_count=291282, @offset=1, @max_result_count=1> I would like to retrieve the URL and thumbnail links. Any ideas?

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• Symfony dynamic forms

  - by Asier

  Hi there, I started with a form, which is made by hand because of it's complexity (it's a javascript modified form, with sortable parts, etc). The problem is that now I need to do the validation, and it's a total mess to do it from scratch in the action using the sfValidator* classes. So, I am thinking to do it using sfForm so that my form validation and error handling can be done more easier and so I can reuse this form for the Edit and Create pages. The form is something like this: <form> <input name="form[year]"/> <textarea name="form[description]"></textarea> <div class="sortable"> <div class="item"> <input name="form[items][0][name]"/> <input name="form[items][0][age]"/> </div> <div class="item"> <input name="form[items][1][name]"/> <input name="form[items][1][age]"/> </div> </div> </form> The thing is that the sortable part of the form can be expanded from 2 to N elements on the client side. So that it has variable items quantity which can be reordered. How can I approach this problem? Any ideas are welcome, thank you. :)

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• @WebServices as @Stateless session bean in ejb jar

  - by kislo_metal

  Hi! Scenario: Creating some web service as @Stateless bean, package it as ejb jar. Result - can`t access to wsdl file. Goal: I want to use @WebServices as @Stateless session using ejb jar packaging with accessible wsdl file form web. Web service: @Stateless @WebService(serviceName = "ws.isp.SecurityService", wsdlLocation = "META-INF/wsdl/SecurityService.wsdl") public class SecurityService{ @EJB private Kerberos factory; @EJB private UsersServiceBean uService; public SecurityService() { } @WebMethod @WebResult(name = "SimpleResponse") public SimpleResponse LogOut( @WebParam(name = "sessionUUID", targetNamespace = "https://secure.co.ua/ws/") String sessionUUID ) { SimpleResponse resp = new SimpleResponse(); try{ factory.removeSession(sessionUUID); resp.setError(WSErrorCodes.SUCCESS); }catch (Exception e){ e.printStackTrace(); resp.setError(WSErrorCodes.UNRELOSVED_ERROR); } return resp; } @WebMethod public MySession logIn( @WebParam(name = "username", targetNamespace = "https://secure.co.ua/ws/") String username, @WebParam(name = "password", targetNamespace = "https://secure.co.ua/ws/") String password){ MySession result = new MySession(); try { UserSession us = factory.creatSession(uService.getUser(username, password).getId()); result.setSessionID(us.getSessionUUID().toString()); result.setError(WSErrorCodes.SUCCESS); } catch (NullPointerException e){ e.printStackTrace(); result.setError(WSErrorCodes.UNRELOSVED_USER); } catch (Exception e){ e.printStackTrace(); result.setError(WSErrorCodes.UNRELOSVED_ERROR); } return result; } } In this case I getting Invalid wsdl request http://192.168.44.48:8181/ws.isp.SecurityService/SecurityService when I try to access to wsdl and if do not use description of wsdlLocation I getting blank page. Web service as it self working good. Q1: what is the rule of describing wsdl file location for web services as stateless in ejb jar. Q2: is it possible to generate wsdl file during maven packaging ? Q3: how to generate wsdl file for web service where we have such annotation as @Stateless and @EJB (currently I can generate it only by commenting those annotations) environment: mave 2, ejb 3.1, glassfish v3, jax-ws 2.x Thank you!

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• Glassfish, railo and coldbox - messed up links?

  - by mrt181

  I am new to ColdFusion and ColdBox (and programming). I tried to setup ColdBox but some of the links in the sample applications are broken. My configuration is a GlassFish v3 installation with the current Railo OSS. I access my site through Apache 2.2.14. So instead of http://127.0.0.1:8080/railo/ I access my environment trough http://railo/. In Railo I have a webroot mapping / to C:/webapps/myproject/. I have copied the current ColdBox 3M4 to C:/webapps/myproject/coldbox. I can access the dashboard through http://railo/coldbox/dashboard/index.cfm and have access to all options. My problems start the moment I try to open the sample gallery: HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception java.io.FileNotFoundException: C:\webapps\viss-dev\coldbox\samples (Zugriff verweigert) note The full stack traces of the exception and its root causes are available in the GlassFish v3 logs. GlassFish v3 OK, no problem, just enter the link directly: http://railo/coldbox/samples/index.cfm. The site looks plain, who cares - BUT all local links look like this: http://127.0.0.1:8080/coldbox/samples/applications/helloworld/index.cfm (railo is replaced with 127.0.0.1:8080). Looks like trouble. To make my confusion perfect: when I try to access the login app: http://railo/coldbox/samples/applications/sampleloginapp/index.cfm and hit the submit button, I am redirected to this address: http://railo/railo/coldbox/samples/applications/sampleloginapp/index.cfm. I believe that this is not really ColdBox-related, but it manifests itself when I try to use ColdBox, so here I am. P.S.: amazon.de takes too long to ship the ColdBox book :(

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• How to sort a date array in PHP

  - by Click Upvote

  I have an array in this format: Array ( [0] => Array ( [28th February, 2009] => 'bla' ) [1] => Array ( [19th March, 2009] => 'bla' ) [2] => Array ( [5th April, 2009] => 'bla' ) [3] => Array ( [19th April, 2009] => 'bla' ) [4] => Array ( [2nd May, 2009] => 'bla' ) ) I want to sort them out in the ascending order of the dates (based on the month, day, and year). What's the best way to do that? Originally the emails are being fetched in the MySQL date format, so its possible for me to get the array in this state: Array [ ['2008-02-28']='some text', ['2008-03-06']='some text' ] Perhaps when its in this format, I can loop through them, remove all the '-' (hyphen) marks so they are left as integars, sort them using array_sort() and loop through them yet again to sort them? Would prefer if there was another way as I'd be doing 3 loops with this per user. Thanks. Edit: I could also do this: $array[$index]=array('human'=>'28 Feb, 2009', 'db'=>'20080228', 'description'=>'Some text here'); But using this, would there be any way to sort the array based on the 'db' element alone? Edit 2: Updated initial var_dump

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• Accelerated C++, problem 5-6 (copying values from inside a vector to the front)

  - by Darel

  Hello, I'm working through the exercises in Accelerated C++ and I'm stuck on question 5-6. Here's the problem description: (somewhat abbreviated, I've removed extraneous info.) 5-6. Write the extract_fails function so that it copies the records for the passing students to the beginning of students, and then uses the resize function to remove the extra elements from the end of students. (students is a vector of student structures. student structures contain an individual student's name and grades.) More specifically, I'm having trouble getting the vector.insert function to properly copy the passing student structures to the start of the vector students. Here's the extract_fails function as I have it so far (note it doesn't resize the vector yet, as directed by the problem description; that should be trivial once I get past my current issue.) // Extract the students who failed from the "students" vector. void extract_fails(vector<Student_info>& students) { typedef vector<Student_info>::size_type str_sz; typedef vector<Student_info>::iterator iter; iter it = students.begin(); str_sz i = 0, count = 0; while (it != students.end()) { // fgrade tests wether or not the student failed if (!fgrade(*it)) { // if student passed, copy to front of vector students.insert(students.begin(), it, it); // tracks of the number of passing students(so we can properly resize the array) count++; } cout << it->name << endl; // output to verify that each student is iterated to it++; } } The code compiles and runs, but the students vector isn't adding any student structures to its front. My program's output displays that the students vector is unchanged. Here's my complete source code, followed by a sample input file (I redirect input from the console by typing " < grades" after the compiled program name at the command prompt.) #include <iostream> #include <string> #include <algorithm> // to get the declaration of `sort' #include <stdexcept> // to get the declaration of `domain_error' #include <vector> // to get the declaration of `vector' //driver program for grade partitioning examples using std::cin; using std::cout; using std::endl; using std::string; using std::domain_error; using std::sort; using std::vector; using std::max; using std::istream; struct Student_info { std::string name; double midterm, final; std::vector<double> homework; }; bool compare(const Student_info&, const Student_info&); std::istream& read(std::istream&, Student_info&); std::istream& read_hw(std::istream&, std::vector<double>&); double median(std::vector<double>); double grade(double, double, double); double grade(double, double, const std::vector<double>&); double grade(const Student_info&); bool fgrade(const Student_info&); void extract_fails(vector<Student_info>& v); int main() { vector<Student_info> vs; Student_info s; string::size_type maxlen = 0; while (read(cin, s)) { maxlen = max(maxlen, s.name.size()); vs.push_back(s); } sort(vs.begin(), vs.end(), compare); extract_fails(vs); // display the new, modified vector - it should be larger than // the input vector, due to some student structures being // added to the front of the vector. cout << "count: " << vs.size() << endl << endl; vector<Student_info>::iterator it = vs.begin(); while (it != vs.end()) cout << it++->name << endl; return 0; } // Extract the students who failed from the "students" vector. void extract_fails(vector<Student_info>& students) { typedef vector<Student_info>::size_type str_sz; typedef vector<Student_info>::iterator iter; iter it = students.begin(); str_sz i = 0, count = 0; while (it != students.end()) { // fgrade tests wether or not the student failed if (!fgrade(*it)) { // if student passed, copy to front of vector students.insert(students.begin(), it, it); // tracks of the number of passing students(so we can properly resize the array) count++; } cout << it->name << endl; // output to verify that each student is iterated to it++; } } bool compare(const Student_info& x, const Student_info& y) { return x.name < y.name; } istream& read(istream& is, Student_info& s) { // read and store the student's name and midterm and final exam grades is >> s.name >> s.midterm >> s.final; read_hw(is, s.homework); // read and store all the student's homework grades return is; } // read homework grades from an input stream into a `vector<double>' istream& read_hw(istream& in, vector<double>& hw) { if (in) { // get rid of previous contents hw.clear(); // read homework grades double x; while (in >> x) hw.push_back(x); // clear the stream so that input will work for the next student in.clear(); } return in; } // compute the median of a `vector<double>' // note that calling this function copies the entire argument `vector' double median(vector<double> vec) { typedef vector<double>::size_type vec_sz; vec_sz size = vec.size(); if (size == 0) throw domain_error("median of an empty vector"); sort(vec.begin(), vec.end()); vec_sz mid = size/2; return size % 2 == 0 ? (vec[mid] + vec[mid-1]) / 2 : vec[mid]; } // compute a student's overall grade from midterm and final exam grades and homework grade double grade(double midterm, double final, double homework) { return 0.2 * midterm + 0.4 * final + 0.4 * homework; } // compute a student's overall grade from midterm and final exam grades // and vector of homework grades. // this function does not copy its argument, because `median' does so for us. double grade(double midterm, double final, const vector<double>& hw) { if (hw.size() == 0) throw domain_error("student has done no homework"); return grade(midterm, final, median(hw)); } double grade(const Student_info& s) { return grade(s.midterm, s.final, s.homework); } // predicate to determine whether a student failed bool fgrade(const Student_info& s) { return grade(s) < 60; } Sample input file: Moo 100 100 100 100 100 100 100 100 Fail1 45 55 65 80 90 70 65 60 Moore 75 85 77 59 0 85 75 89 Norman 57 78 73 66 78 70 88 89 Olson 89 86 70 90 55 73 80 84 Peerson 47 70 82 73 50 87 73 71 Baker 67 72 73 40 0 78 55 70 Davis 77 70 82 65 70 77 83 81 Edwards 77 72 73 80 90 93 75 90 Fail2 55 55 65 50 55 60 65 60 Thanks to anyone who takes the time to look at this!

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• Set Property Value on Master Page from Content Page

  - by Merk

  Hello, I tried following the advice posted here: http://stackoverflow.com/questions/1071920/set-property-value-on-master-page-from-content-page. Specifically the last post about creating a class. However, visual studio keeps giving me an error on my default.aspx.cs page when i try to set the value: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class _Default : BasePage { protected override int NavHighlight { get { return new{0} ; } } protected void Page_Load(object sender, EventArgs e) { } } It throws an error on new, the error being: cannot inplicity convert anonymoustype#1 to int Can someone tell me what i might have done wrong here? Here's what my class looks like: using System; using System.Collections.Generic; using System.Linq; using System.Web; /// <summary> /// Summary description for BasePage /// </summary> public abstract class BasePage : System.Web.UI.Page { protected abstract int NavHighlight { get; } protected override void OnLoad(EventArgs e) { base.OnLoad(e); if (this.Master != null) { //value assignment } } public BasePage() { // // TODO: Add constructor logic here // } } Thanks.

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• bug in NHunspell spelling checker

  - by Nikhil K

  I am using NHunspell for checking spelling.I added NHunspell.dll as a reference to my asp.net page.I added the namespace System.NHunspell. The problem i am facing is related to IDisposible. I put the downloaded code of NHunspell inside the button event. protected void Button1_Click(object sender, EventArgs e) { using (Hunspell hunspell = new Hunspell("en_us.aff", "en_us.dic")) { bool correct = hunspell.Spell("Recommendation"); var suggestions = hunspell.Suggest("Recommendatio"); foreach (string suggestion in suggestions) { Console.WriteLine("Suggestion is: " + suggestion); } } // Hyphen using (Hyphen hyphen = new Hyphen("hyph_en_us.dic")) { var hyphenated = hyphen.Hyphenate("Recommendation"); } * using (MyThes thes = new MyThes("th_en_us_new.idx", "th_en_us_new.dat")) { using (Hunspell hunspell = new Hunspell("en_us.aff", "en_us.dic")) { ThesResult tr = thes.Lookup("cars", hunspell); foreach (ThesMeaning meaning in tr.Meanings) { Console.WriteLine(" Meaning: " + meaning.Description); foreach (string synonym in meaning.Synonyms) { Console.WriteLine(" Synonym: " + synonym); } } } } The * shown above is the line of error.The error is: " type used in a using statement must be implicitly convertible to 'System.IDisposable'". Also there is a warning on that line :"'NHunspell.MyThes.MyThes(string, string)' is obsolete: 'idx File is not longer needed, MyThes works completely in memory'"; Can any one help me to correct this???

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• Force Download Files Broken Headers wrong?

  - by Sinan

  if($_POST['mode']=="save") { $root = $_SERVER['DOCUMENT_ROOT']; $path = "/mcboeking/"; $path = $root.$path; $file_path = $_POST['path']; $file = $path.$file_path; if(!file_exists($file)) { die('file not found'); } else { header("Cache-Control: public"); header("Content-Description: File Transfer"); header('Content-Type: application/force-download'); header("Content-Disposition: attachment; filename=\"".basename($file)."\";" ); header("Content-Length: ".filesize($file)); readfile($file);}} As soon as i download the file and open it i get an error message. When i try to open a .doc i get the message : file structure is invalid. And when i try to open a jpg : This file can not be opened. It may be corrupt or a file format that Preview does not recognize. But when i download PDF files, they open without any problem. Can someone help me? P.s. i tried different headers including : header('Content-Type: application/octet-stream');

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• How do I build a JSON object to send to an AJAX WebService?

  - by Ben McCormack

  After trying to format my JSON data by hand in javascript and failing miserably, I realized there's probably a better way. Here's what the code for the web service method and relevant classes looks like in C#: [WebMethod] public Response ValidateAddress(Request request) { return new test_AddressValidation().GenerateResponse( test_AddressValidation.ResponseType.Ambiguous); } ... public class Request { public Address Address; } public class Address { public string Address1; public string Address2; public string City; public string State; public string Zip; public AddressClassification AddressClassification; } public class AddressClassification { public int Code; public string Description; } The web service works great with using SOAP/XML, but I can't seem to get a valid response using javascript and jQuery because the message I get back from the server has a problem with my hand-coded JSON. I can't use the jQuery getJSON function because the request requires HTTP POST, so I'm using the lower-level ajax function instead: $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "http://bmccorm-xp/HBUpsAddressValidation/AddressValidation.asmx/ValidateAddress", data: "{\"Address\":{\"Address1\":\"123 Main Street\",\"Address2\":null,\"City\":\"New York\",\"State\":\"NY\",\"Zip\":\"10000\",\"AddressClassification\":null}}", dataType: "json", success: function(response){ alert(response); } }) The ajax function is submitting everything specified in data:, which is where my problem is. How do I build a properly formatted JSON object in javascript so I can plug it in to my ajax call like so: data: theRequest I'll eventually be pulling data out of text inputs in forms, but for now hard-coded test data is fine. How do I build a properly formatted JSON object to send to the web service?

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• Prevent "hg status" from showing everything under untracked directories

  - by Wei Hu

  I find the output of hg status too verbose for untracked directories. Suppose I have an empty repository that's managed by both git and hg. So there would be two directories, .git and .hg. The output of git status is: # Untracked files: # (use "git add <file>..." to include in what will be committed) # # .hg/ The output of hg status is: ? .git/HEAD ? .git/config ? .git/description ? .git/hooks/applypatch-msg.sample ? .git/hooks/commit-msg.sample ? .git/hooks/post-commit.sample ? .git/hooks/post-receive.sample ? .git/hooks/post-update.sample ? .git/hooks/pre-applypatch.sample ? .git/hooks/pre-commit.sample ? .git/hooks/pre-rebase.sample ? .git/hooks/prepare-commit-msg.sample ? .git/hooks/update.sample ? .git/info/exclude Is there a way to reduce its output to something like the following line? ? .git/

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• self referencing object in JPA

  - by geoaxis

  Hello, I am trying to save a SystemUser entity in JPA. I also want to save certain things like who created the SystemUser and who last modified the system User as well. @ManyToOne(targetEntity = SystemUser.class) @JoinColumn private SystemUser userWhoCreated; @Temporal(TemporalType.TIMESTAMP) @DateTimeFormat(iso=ISO.DATE_TIME) private Date timeCreated; @ManyToOne(targetEntity = SystemUser.class) @JoinColumn private SystemUser userWhoLastModified; @Temporal(TemporalType.TIMESTAMP) @DateTimeFormat(iso=ISO.DATE_TIME) private Date timeLastModified; I also want to ensure that these values are not null when persisted. So If I use the NotNull JPA annotation, that is easily solved (along with reference to another entity) The problem description is simple, I cannot save rootuser without having rootuser in the system if I am to use a DataLoader class to persist JPA entity. Every other later user can be easily persisted with userWhoModified as the "systemuser" , but systemuser it's self cannot be added in this scheme. Is there a way so persist this first system user (I am thinking with SQL). This is a typical bootstrap (chicken or the egg) problem i suppose.

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• binding nested json object value to a form field

  - by Jack

  I am building a dynamic form to edit data in a json object. First, if something like this exists let me know. I would rather not build it but I have searched many times for a tool and have found only tree like structures that require entering quotes. I would be happy to treat all values as strings. This edit functionality is for end users so it needs to be easy an not intimidating. So far I have code that generates nested tables to represent a json object. For each value I display a form field. I would like to bind the form field to the associated nested json value. If I could store a reference to the json value I would build an array of references to each value in a json object tree. I have not found a way to do that with javascript. My last resort approach will be to traverse the table after edits are made. I would rather have dynamic updates but a single submit would be better than nothing. Any ideas? // the json in files nests only a few levels. Here is the format of a simple case, { "researcherid_id":{ "id_key":"researcherid_id", "description":"Use to retrieve bibliometric data", "url_template" :[ { "name": "Author Detail", "url": "http://www.researcherid.com/rid/${key}" } ] } } $.get('file.json',make_json_form); function make_json_form(response) { dataset = $.secureEvalJSON(response); // iterate through the object and generate form field for string values. } // Then after the form is edited I want to display the raw updated json (then I want to save it but that is for another thread) // now I iterate through the form and construct the json object // I would rather have the dataset object var updated on focus out after each edit. function show_json(form_id){ var r = {}; var el = document.getElementById(form_id); table_to_json(r,el,null); $('body').html(formattedJSON(r)); }

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• Objective-C NSDate memory issue (again)

  - by Toby Wilson

  I'm developing a graphing application and am attempting to change the renderer from OpenGL to Quartz2D to make text rendering easier. A retained NSDate object that was working fine before suddenly seems to be deallocating itself, causing a crash when an NSMutableString attempts to append it's decription (now 'nil'). Build & analyse doesn't report any potential problems. Simplified, the code looks like this: NSDate* aDate -(id)init { aDate = [[NSDate date] retain] return self; } -(void)drawRect(CGRect)rect { NSMutableString* stringy = [[NSMutableString alloc] init]; //aDate is now deallocated and pointing at 0x0? [stringy appendString:[aDate description]]; //Crash } I should stress that the actual code is a lot more complicated than that, with a seperate thread also accessing the date object, however suitable locks are in place and when stepping through the code [aDate release] is not being called anywhere. Using [[NSDate alloc] init] bears the same effect. I should also add that init IS the first function to be called. Can anyone suggest something I may have overlooked, or why the NSDate object is (or appears to be) releasing itself?

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• google maps not working anymore at the drop of a hat

  - by Vordreller

  2 days ago, I was working on a project that involves google maps. The website showed the maps on the pages just fine. Now, I come back to my workstation, nothing has changed, expect for the fact that the google maps won't show up anymore. The code is identical, nobody has touched my machine since I was gone, I've checked the html, everything is perfect and still this isn't working... The Javascript console is giving no errors and the code is identical to a backup I make everytime I call it a day. 2 days ago it was working, today it isn't. I've even copied the source code, put it into an html file and tried that, but the same result. I'm at a loss here. This is my code: <script type="text/javascript"> //<![CDATA[ var map; var directionsPanel; var directions; function initialize() { if (GBrowserIsCompatible()) { map = new GMap2(document.getElementById("map")); map.addControl(new GLargeMapControl()); map.addControl(new GScaleControl()); map.addControl(new GMapTypeControl()); //the route description directionsPanel = document.getElementById("route"); directions = new GDirections(map, directionsPanel); directions.load({COMMAND}); } } //]]> </script> The {COMMAND} is something that the PHP template will parse, I've checked it, the format is 100% correct and like I allready said, code now is identical to the backup, and if it worked back then, it should work now. Did google update their API overnight and did a function that I use here become deprecated? I don't know what's going on here...

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