el eduardo - Page 24 - Developer IT

Change JS alert to DOM error message div

- by Jason

I need to convert my error messaging to a positioned div (hidden initially) instead of the standard js alert. I realize I need to push the alert message to the DOM, but I'm new to javascript. Any help would be appreciated. Additionally, I need to do it without a confirm (so error message removes on field focus) if(el != null) { switch(el.name) { case "firstName": //First Name Field Validation, Return false if field is empty if( f.firstName.value == "" ) { alert( bnadd_msg_002 ); if ((typeof TeaLeaf != "undefined") && (typeof TeaLeaf.Client != "undefined") && (typeof TeaLeaf.Client.tlAddEvent != "undefined") ) { var nVO = { ErrorMessage : bnadd_msg_002} var subtype="CustomErrorMsg"; TeaLeaf.Event.tlAddCustomEvent(subtype, nVO); } return false; } break;

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Convert XML attributes to a Dictionary in Linq to XML

- by NateD

I've got a program that needs to convert two attributes of a particular tag to the key and value of an Dictionary<int,string>. The XML looks like this: (fragment) <startingPoint coordinates="1,1" player="1" /> and so far my LINQ looks something like this: XNamespace ns = "http://the_namespace"; var startingpoints = from sp in xml.Elements(ns+"startingPoint") from el in sp.Attributes() select el.Value; Which gets me a nice IEnumerable full of things like "1,1" and "1", but there should be a way to adapt something like this answer to do attributes instead of elements. Little help please? Thank you!

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How can I transfer output that appears on the console and format it so that it appears on a web page

- by lojayna

package collabsoft.backlog_reports.c4; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.Statement; //import collabsoft.backlog_reports.c4.Report; public class Report { private Connection con; public Report(){ connectUsingJDBC(); } public static void main(String args[]){ Report dc = new Report(); dc.reviewMeeting(6, 8, 10); dc.createReport("dede",100); //dc.viewReport(100); // dc.custRent(3344,123,22,11-11-2009); } /** the following method is used to connect to the database **/ public void connectUsingJDBC() { // This is the name of the ODBC data source String dataSourceName = "Simple_DB"; try { // loading the driver in the memory Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); // This is the connection URL String dbURL = "jdbc:odbc:" + dataSourceName; con = DriverManager.getConnection("jdbc:mysql://localhost:3306/Collabsoft","root",""); // This line is used to print the name of the driver and it would throw an exception if a problem occured System.out.println("User connected using driver: " + con.getMetaData().getDriverName()); //Addcustomer(con,1111,"aaa","aaa","aa","aam","111","2222","111"); //rentedMovies(con); //executePreparedStatement(con); //executeCallableStatement(con); //executeBatch(con); } catch (Exception e) { e.printStackTrace(); } } /** *this code is to link the SQL code with the java for the task *as an admin I should be able to create a report of a review meeting including notes, tasks and users *i will take the task id and user id and note id that will be needed to be added in the review *meeting report and i will display the information related to these ida **/ public void reviewMeeting(int taskID, int userID, int noteID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL report_review_meeting(?,?,?)}"); callableStatement.setInt(1,taskID); callableStatement.setInt(2,userID); callableStatement.setInt(3,noteID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } ////////////////////////////////// ///////////////////////////////// public void allproject(int projID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL all_project(?)}"); callableStatement.setInt(1,projID); //callableStatement.setInt(2,userID); //callableStatement.setInt(3,noteID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } /////////////////////////////// /** * here i take the event id and i take a string report and then * i relate the report with the event **/ public void createReport(String report,int E_ID )// law el proc bt return table { try{ Statement st = con.createStatement(); st.executeUpdate("UPDATE e_vent SET e_vent.report=report WHERE e_vent.E_ID= E_ID;"); /* CallableStatement callableStatement = con.prepareCall("{CALL Create_report(?,?)}"); callableStatement.setString(1,report); callableStatement.setInt(2,E_ID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); }*/ } catch(Exception e) { System.out.println("E"); System.out.println(e); } } /** *in the following method i view the report of the event having the ID eventID **/ public void viewReport(int eventID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL view_report(?)}"); callableStatement.setInt(1,eventID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } } // the result of these methods is being showed on the console , i am using WIcket and i want it 2 be showed on the web how is that done ?!

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i want to show the result of my code on a web page because it is being showed on a console??

- by lojayna

package collabsoft.backlog_reports.c4; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.Statement; //import collabsoft.backlog_reports.c4.Report; public class Report { private Connection con; public Report(){ connectUsingJDBC(); } public static void main(String args[]){ Report dc = new Report(); dc.reviewMeeting(6, 8, 10); dc.createReport("dede",100); //dc.viewReport(100); // dc.custRent(3344,123,22,11-11-2009); } /** the following method is used to connect to the database **/ public void connectUsingJDBC() { // This is the name of the ODBC data source String dataSourceName = "Simple_DB"; try { // loading the driver in the memory Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); // This is the connection URL String dbURL = "jdbc:odbc:" + dataSourceName; con = DriverManager.getConnection("jdbc:mysql://localhost:3306/Collabsoft","root",""); // This line is used to print the name of the driver and it would throw an exception if a problem occured System.out.println("User connected using driver: " + con.getMetaData().getDriverName()); //Addcustomer(con,1111,"aaa","aaa","aa","aam","111","2222","111"); //rentedMovies(con); //executePreparedStatement(con); //executeCallableStatement(con); //executeBatch(con); } catch (Exception e) { e.printStackTrace(); } } /** *this code is to link the SQL code with the java for the task *as an admin I should be able to create a report of a review meeting including notes, tasks and users *i will take the task id and user id and note id that will be needed to be added in the review meeting report and i will display the information related to these ida */ public void reviewMeeting(int taskID, int userID, int noteID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL report_review_meeting(?,?,?)}"); callableStatement.setInt(1,taskID); callableStatement.setInt(2,userID); callableStatement.setInt(3,noteID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } ////////////////////////////////// ///////////////////////////////// public void allproject(int projID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL all_project(?)}"); callableStatement.setInt(1,projID); //callableStatement.setInt(2,userID); //callableStatement.setInt(3,noteID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } /////////////////////////////// /** * here i take the event id and i take a string report and then * i relate the report with the event **/ public void createReport(String report,int E_ID )// law el proc bt return table { try{ Statement st = con.createStatement(); st.executeUpdate("UPDATE e_vent SET e_vent.report=report WHERE e_vent.E_ID= E_ID;"); /* CallableStatement callableStatement = con.prepareCall("{CALL Create_report(?,?)}"); callableStatement.setString(1,report); callableStatement.setInt(2,E_ID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); }*/ } catch(Exception e) { System.out.println("E"); System.out.println(e); } } /** in the following method i view the report of the event having the ID eventID */ public void viewReport(int eventID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL view_report(?)}"); callableStatement.setInt(1,eventID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } } // the result of these methods is being showed on the console , i am using WIcket and i want it 2 be showed on the web how is that done ?! thnxxx

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How to modify by loading and saving the same xml file

- by cynthia hong

I have a problem with modifying xml file when i first load and then save it with same file path and name. Below is my code. The error is "Access to the path C:\MyApp\Web.config is denied. If i change the path of the xdoc.Save to be different from xdoc.Load, then it will be ok. What is your recommandation to solve this problem? If possible, i need to modify the existing xml file(meaning xml file for loading and saving is the same path). XmlDocument xdoc = new XmlDocument(); xdoc.Load(@"C:\\MyApp\\Web.config"); XmlNode xn = xdoc.SelectSingleNode("//configuration/MyProvider"); XmlElement el = (XmlElement)xn; el.SetAttribute("defaultProvider", "MyCustomValue"); xdoc.Save(@"C:\\MyApp\\Web.config"); Thanks in advance.

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JQuery UI Drop Disable on selected elements

- by Suneth Kalhara

i want to add drop limit on circles, i wrote a scrit for dragging circles the problem is user can drop circle on another circle, i don't want to allow it, simply i need to revert if the user drag and drop circle on another circle. i write some codes for this. but this not working for me, it always revert the dropped circle. here is my example url http://webxtreams.net/demoprofiles004/circledragger.html here is js code i run on fire bug $(".circle").draggable({ revert: 'invalid' }); $(".circle").droppable({ accept: function(el) { return el.hasClass('.circle'); } }); please help me to do that. have another little question - can we track the reverting event on this, i need to repaint the lines when reverting the circle :)

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jQuery / jqgrid / Editing form events

- by MiBol

I'm working with the jqGrid and I want to know if exists an event to read a double click in the Editing Form? Has example: I have a grid with ColumnA and ColumnB. I want read the event when the user perform a double click under ColumnB (In the Editing Form). Thanks! I found the solution of my problem ^^ Here is the code, to this example I use the alert "TEST!!!"... [Thanks to Oleg to wake up my mind :P] In the colModel { name: 'Total_uploads', index: 'Total_uploads', width: '100', editable: true, edittype: 'text', editoptions: { size: 10, maxlength: '20', dataInit: function (el) { $(el).click(function () { alert("TEST!!!"); }); } }, editrules: { required: true }, formoptions: { label: 'Total uploads: ', elmsuffix: '   <span style="color : #0C66BE; font-family: Calibri">(*)</span>' } }

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not including null values in sql join

- by Ashanti

Hi, I have two tables CustomerAddress(CustomerId, City, Country) and CustomerTransactions(TransactionId, CustomerId, CustomerContact). Here are the values in the tables: For CustomerAddress: 1001, El Paso, USA 1002, Paris, France 1003, Essen, Germany For CustomerTransactions: 98, 1001, Phillip 99, 1001, NULL 100, 1001, NULL 101, 1003, Carmen 102, 1003, Carmen 103, 1003, Lola 104, 1003, NULL 105, 1002, NULL I'm trying to join both tables and have the following result set: 1001, El Paso, USA, Phillip 1002, Paris, France, (empty string) 1003, Essen, Germany, Carmen 1003, Essen, Germany, Lola It seems like a simple join but I'm having trouble coming up with the above result set. Please help. Thanks.

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How to filter Backbone.js Collection and Rerender App View?

- by Jeremy H.

Is is a total Backbone.js noob question. I am working off of the ToDo Backbone.js example trying to build out a fairly simple single app interface. While the todo project is more about user input, this app is more about filtering the data based on the user options (click events). I am completely new to Backbone.js and Mongoose and have been unable to find a good example of what I am trying to do. I have been able to get my api to pull the data from the MongoDB collection and drop it into the Backbone.js collection which renders it in the app. What I cannot for the life of me figure out how to do is filter that data and re-render the app view. I am trying to filter by the "type" field in the document. Here is my script: (I am totally aware of some major refactoring needed, I am just rapid prototyping a concept.) $(function() { window.Job = Backbone.Model.extend({ idAttribute: "_id", defaults: function() { return { attachments: false } } }); window.JobsList = Backbone.Collection.extend({ model: Job, url: '/api/jobs', leads: function() { return this.filter(function(job){ return job.get('type') == "Lead"; }); } }); window.Jobs = new JobsList; window.JobView = Backbone.View.extend({ tagName: "div", className: "item", template: _.template($('#item-template').html()), initialize: function() { this.model.bind('change', this.render, this); this.model.bind('destroy', this.remove, this); }, render: function() { $(this.el).html(this.template(this.model.toJSON())); this.setText(); return this; }, setText: function() { var month=new Array(); month[0]="Jan"; month[1]="Feb"; month[2]="Mar"; month[3]="Apr"; month[4]="May"; month[5]="Jun"; month[6]="Jul"; month[7]="Aug"; month[8]="Sep"; month[9]="Oct"; month[10]="Nov"; month[11]="Dec"; var title = this.model.get('title'); var description = this.model.get('description'); var datemonth = this.model.get('datem'); var dateday = this.model.get('dated'); var jobtype = this.model.get('type'); var jobstatus = this.model.get('status'); var amount = this.model.get('amount'); var paymentstatus = this.model.get('paymentstatus') var type = this.$('.status .jobtype'); var status = this.$('.status .jobstatus'); this.$('.title a').text(title); this.$('.description').text(description); this.$('.date .month').text(month[datemonth]); this.$('.date .day').text(dateday); type.text(jobtype); status.text(jobstatus); if(amount > 0) this.$('.paymentamount').text(amount) if(paymentstatus) this.$('.paymentstatus').text(paymentstatus) if(jobstatus === 'New') { status.addClass('new'); } else if (jobstatus === 'Past Due') { status.addClass('pastdue') }; if(jobtype === 'Lead') { type.addClass('lead'); } else if (jobtype === '') { type.addClass(''); }; }, remove: function() { $(this.el).remove(); }, clear: function() { this.model.destroy(); } }); window.AppView = Backbone.View.extend({ el: $("#main"), events: { "click #leads .highlight" : "filterLeads" }, initialize: function() { Jobs.bind('add', this.addOne, this); Jobs.bind('reset', this.addAll, this); Jobs.bind('all', this.render, this); Jobs.fetch(); }, addOne: function(job) { var view = new JobView({model: job}); this.$("#activitystream").append(view.render().el); }, addAll: function() { Jobs.each(this.addOne); }, filterLeads: function() { // left here, this event fires but i need to figure out how to filter the activity list. } }); window.App = new AppView; });

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What is a simple way to combine two Emacs major modes, or to change an existing mode?

- by Winston C. Yang

In Emacs, I'm working with a file that is a hybrid of two languages. Question 1: Is there a simple way to write a major mode file that combines two major modes? Details: The language is called "brew" (not the "BREW" of "Binary Runtime Environment for Wireless"). brew is made up of the languages R and Latex, whose modes are R-mode and latex-mode. The R code appears between the tags <% and %. Everything else is Latex. How can I write a brew-mode.el file? (Or is one already available?) One idea, which I got from this posting, is to use Latex mode, and treat the code of the form <% ... % as a comment. Question 2: How do you change the .emacs file or the latex.el file to have Latex mode treat code of the form <% ... % as a comment?

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How to add JSTL to Maven?

- by La Chamelle

I'm working on a JSF 2.0 project using Mojarra, PrimeFaces and Tomcat 6.x. I need to use c:forEach for some primefaces component like dynamic number of p:tab but i have problem with the c:forEach. All the other tag of JSTL work nice. I have the following error : java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/LoopTagStatus I use the following xmlns:c="http://java.sun.com/jsp/jstl/core", i tried to replace with xmlns:c="http://java.sun.com/jstl/core" but nothing display with the second. This is the exact version of lib: <dependency> <groupId>javax.faces</groupId> <artifactId>jsf-api</artifactId> <version>2.0.2-FCS</version> </dependency> <dependency> <groupId>com.sun.faces</groupId> <artifactId>jsf-impl</artifactId> <version>2.0.4-b03</version> </dependency> <dependency> <groupId>org.primefaces</groupId> <artifactId>primefaces</artifactId> <version>2.2.1</version> </dependency> <dependency> <groupId>javax.el</groupId> <artifactId>el-api</artifactId> <version>2.2</version> </dependency> <dependency> <groupId>org.glassfish.web</groupId> <artifactId>el-impl</artifactId> <version>2.2</version> </dependency> How i can fix it ? I can give more specific information if needed.

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C# - Problem while listing directories - DirectoryNotFoundException

- by HoNgOuRu

I'm getting a "DirectoryNotFoundException" error, here is the code: string directorio = "D:\MUSICA\La Trampa - El Mísero Espiral De Encanto"; DirectoryInfo dir = new DirectoryInfo(directorio); DirectoryInfo[] dirs = dir.GetDirectories(); <------------This is the line I'm having this problem. I believe it's caused when it tries to parse the tilde part of that string "Mísero". the directory "D:\MUSICA\La Trampa - El Mísero Espiral De Encanto" exists because I can see it and also have some files in it. Is there any way to send this string in correct way? Thanks

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Writing the output of IEnumerable<XElement> to a XML File

- by Googler

HI folks , This is my code to read two xml files and merge their elemnts. I want to write the output to an xml file. This is my code. IEnumerable<XElement> list0 = doc.Descendants(node1).Concat(doc2.Descendants(node2)); foreach (XElement el in list0) Console.WriteLine(el); Instead of writing to the console i need to write it to a xml file. Output is also in the xml format.How to achieve this. Can anyone pls give me a code or method to achiev this.

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Posting comment with ajax and jquery

- by Steve

I want to display the posted comment once the user comments. Just to add it under all of them as facebook does. I have this: // Interceptamos el evento submit $('#CommentAddForm').submit(function() { alert("entro"); alert($(this).attr('action')); // Enviamos el formulario usando AJAX $.ajax({ type: 'POST', url: $(this).attr('action'), data: $(this).serialize(), // Mostramos un mensaje con la respuesta de PHP success: function(data) { $('#result').html(//????????????); } }); return false; }); But i don't know very well how it works and i dont know what should i write in the line $('#result').html(//????????????); The variable URL contains the route which inserts the comment in the DB. And it works well. Any idea? Thanks. By the way, i have been reading this answer: Ajax/jQuery Comment System But i still don't get it.

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table cell background color change problem

- by Mellon

I work on another guy's code, and I try to change the table cell background color when mouse over the cell, and change back to the original background color when mouse leave. I use the following code: var bgcolor=$(".cell-el").css("background-color") $(".cell-el").hover( function(){ $(this).css("background-color", "#3c3c36")}, //mouse enter, bg-color change function(){ $(this).css("background-color", bgcolor) // mouse leave, bg-color change back }) Things are working fine, EXCEPT that when mouse first time enter the cell, the cell background color is not changed to "#3c3c36", but when mouse leave the cell after first entering and enter in the cell again, the cell's background color changed to "#3c3c36". That's the cell color never change for mouse first enter, after that, everything is working great. What's could be the cause of this problem?

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php paypal ipn membership error

- by aleksander haugas

hello I integrated the membership subscription in the website, but I fail to insert data to the database. checking out all the function I make a txt file with php with data and generates me correctly. but I can not verify any data and less insert. <?php // read the post from PayPal system and add 'cmd' $req = 'cmd=_notify-validate'; foreach ($_POST as $key => $value) { $value = urlencode(stripslashes($value)); $req .= "&$key=$value"; } // Post back to PayPal system to validate $header .= "POST /cgi-bin/webscr HTTP/1.0\r\n"; $header .= "Content-Type: application/x-www-form-urlencoded\r\n"; $header .= "Content-Length: " . strlen($req) . "\r\n\r\n"; $fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30); // Assign posted variables to local variables $item_name = $_POST['item_name']; $item_number = $_POST['item_number']; $payment_status = $_POST['payment_status']; $payment_amount = $_POST['mc_gross']; $payment_currency = $_POST['mc_currency']; $txn_id = $_POST['txn_id']; $receiver_email = $_POST['receiver_email']; $payer_email = $_POST['payer_email']; $user_id = $_POST['custom']; //Here i make the txt file and it works correctly //but after this does not work or make a txt file //Insert and update data if (!$fp) { // HTTP ERROR } else { fputs ($fp, $header . $req); while (!feof($fp)) { $res = fgets ($fp, 1024); if (strcmp ($res, "VERIFIED") == 0) { //Verificamos el estado del pedido if ($payment_status == 'Completed') { $txn_id_check = mysql_query("SELECT Transaction_ID FROM ".$db_table_prefix."Users_Payments WHERE Transaction_ID='".$txn_id."'"); if (mysql_num_rows($txn_id_check) !=1) { //Si el pago se ha realizado al dueño especificado y coincide con el dueño if ($receiver_email == $website_Payment_Email) { //Tipo de cuenta segun pagado if ($payment_amount == '10.00' && $payment_currency == 'EUR') { //add txn_id to database $log_query = mysql_query("INSERT INTO `".$db_table_prefix."Users_Payments` VALUES ('','".$txn_id."','".$payer_email."')"); //update premium to 3 $update_premium = mysql_query("UPDATE ".$db_table_prefix."Users SET Group_ID='3' WHERE User_ID='".$user_id."'"); } } } } } else if (strcmp ($res, "INVALID") == 0) { // log for manual investigation } } fclose ($fp); } ?> I call this file with require_once () with the connection to the database any ideas? thanks

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Cast element in Java For Each statement

- by Carl Summers

Is it possible (or even advisable) to cast the element retrieved from a for each statement in the statement itself? I do know that each element in list will be of type . I.E.: List<BaseType> list = DAO.getList(); for(<SubType> element : list){ // Cannot convert from element type <BaseType> to <SubType> ... } rather than: List <BaseType> list = DAO.getList(); for(<BaseType> el : list){ <SubType> element = (<SubType>)el; ... }

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javascript get child by id

- by Senica Gonzalez

<div onclick="test(this)"> Test <div id="child">child</div> </div> I want to change the style of the child div when the parent div is clicked. How do I reference it? I would like to be able to reference it by ID as the the html in the parent div could change and the child won't be the first child etc. function test(el){ el.childNode["child"].style.display = "none"; } Something like that, where I can reference the child node by id and set the style of it. Thanks.

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ValueError: too many values to unpack in a tuple

- by falosi

Please put some light on why am getting a too many to unpack (ValueError in my for loop).Have tried deb naislist = [('CONTROL FILE', '0', '0', '0'), ('REDO LOG', '0', '0', '0'), ('ARCHIVED LOG', '.69', '.59', '3'), ('BACKUP PIECE', '46.54', '0', '192'), ('IMAGE COPY', '0', '0', '0'), ('FLASHBACK LOG', '10.15', '6.31', '82'), ('FOREIGN ARCHIVED LOG', '0', '0', '0')] print "size of naislist is ",len((naislist)) heading = ('MAIN MENU', 'LEVELS', 'LEVEL2', 'LEVEL3') rearrange = dict(zip((0, 1, 2, 3), (len(str(x)) for x in heading))) for tu, x in naislist: rearrange.update((i, max(rearrange[i], len(str(el)))) for i, el in enumerate(tu)) rearrange[4] = max(rearrange[4], len(str(x))) forkit = '|'. join('%%-%ss' % rearrange[i] for i in xrange(0, 4)) print '\n'.join((forkit % heading, '-|-'.join(rearrange[i] * '-' for i in xrange(4)), '\n'.join(forkit % (a, b, c, d) for (a, b, c), d in naislist)))

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impress.js Navigation with active class

- by ArtGoddess

I would like to use impress.js in order to make a website, with a navigation bar. In each slide, the corresponding anchor or div must have an "active" class, in order to achieve a different link appearance. I have followed all instructions provided here: https://github.com/Ralt/impress.js/commit/f88feb8cae704ce27bd2168bdb77768f516ac2da#L2R605 but the "active" class on the correct menu must be added. This is the code that generates the menu items. How can I add for example the "active" class in the first link? /* ************************ MENU ***************************** */ // Capitalize first letter of string // @see http://stackoverflow.com/a/1026087/851498 var capitalize = function( str ) { return str.charAt(0).toUpperCase() + str.slice(1); } // `showMenu` API function creates the menu // It defines the names of each entry by the id capitalized. var showMenu = function() { // Create the menu wrapper and the element that will be cloned // for each entry. var menu = document.createElement('div'), el = document.createElement('div'); // Apply some classes menu.className = 'menu'; el.className = 'menu-item'; // Create an element that will be the "button" and append it // to the menu var button = document.createElement('div'); button.className = 'menu-button'; button.textContent = 'Menu'; menu.appendChild(button); // Now, for each div in #impress, add an entry to the menu [].forEach.call(byId('impress').firstElementChild.children, function( child, index ) { var newEl = el.cloneNode(), i = index + 1, text = i + '. ' + capitalize(child.id); // Set the text of the new element newEl.textContent = text; // Add an onclick event to the new element // We need to use a closure to make sure the index is correct (function( index ) { newEl.addEventListener('click', function() { goto(index); }); }( index )); // And append the new element to the menu menu.appendChild(newEl); }); // And append the menu to #impress document.body.appendChild(menu); }; Then, in each click it must be removed the active class on the current, and add it to the clicked element. // Remove the active class from the current active document.querySelector( '.active' )[ 0 ].classList.remove( 'active' ); // And add it to the clicked index byId('impress').firstElementChild.children[ index ].classList.add( 'active' ); Where do I have to apply this code? Thank you!

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Emacs: Define a function which loads the file where the function itself is defined

- by damd

I'm refactoring a bit in my Emacs set up and have come to the conclusion that I want to use a different init file than the default one. So basically, in my ~/.emacs file, I have this: (load "/some/directory/init.el") Up until now, that's been working just fine. However, now I want to redefine an old command that I've used for ages, which opens my init file: (defun conf () "Open a buffer with the user init file." (interactive) (find-file user-init-file)) As you can see, this will open ~/.emacs no matter what I do. I want it to open /some/directory/init.el, or wherever the conf command itself is defined. How would I do that?

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Postgesql select from 2 tables. Joins?

- by Daniel

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Emacs, C++ code completion for vectors

- by Caglar Toklu

Hi, I am new to Emacs, and I have the following code as a sample. I have installed GNU Emacs 23.1.1 (i386-mingw-nt6.1.7600), installed cedet-1.0pre7.tar.gz. , installed ELPA, and company. You can find my simple Emacs configuration at the bottom. The problem is, when I type q[0] in main() and press . (dot), I see the 37 members of the vector, not Person although first_name and last_name are expected. The completion works as expected in the function greet() but it has nothing to do with vector. My question is, how can I accomplish code completion for vector elements too? #include <iostream> #include <vector> using namespace std; class Person { public: string first_name; string last_name; }; void greet(Person a_person) { // a_person.first_name is completed as expected! cout << a_person.first_name << "|"; cout << a_person.last_name << endl; }; int main() { vector<Person> q(2); Person guy1; guy1.first_name = "foo"; guy1.last_name = "bar"; Person guy2; guy2.first_name = "stack"; guy2.last_name = "overflow"; q[0] = guy1; q[1] = guy2; greet(guy1); greet(guy2); // cout q[0]. I want to see first_name or last_name here! } My Emacs configuration: ;;; This was installed by package-install.el. ;;; This provides support for the package system and ;;; interfacing with ELPA, the package archive. ;;; Move this code earlier if you want to reference ;;; packages in your .emacs. (when (load (expand-file-name "~/.emacs.d/elpa/package.el")) (package-initialize)) (load-file "~/.emacs.d/cedet/common/cedet.el") (semantic-load-enable-excessive-code-helpers) (require 'semantic-ia) (global-srecode-minor-mode 1) (semantic-add-system-include "/gcc/include/c++/4.4.2" 'c++-mode) (semantic-add-system-include "/gcc/i386-pc-mingw32/include" 'c++-mode) (semantic-add-system-include "/gcc/include" 'c++-mode) (defun my-semantic-hook () (imenu-add-to-menubar "TAGS")) (add-hook 'semantic-init-hooks 'my-semantic-hook)

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Does lamda in List.ForEach leads to memory leaks and performance problems ?

- by Monomachus

I have a problem which I could solve using something like this sortedElements.ForEach((XElement el) => PrintXElementName(el,i++)); And this means that I have in ForEach a lambda which permits using parameters like int i. I like that way of doing it, but i read somewhere that anonymous methods and delegates with lambda leads to a lot of memory leaks because each time when lambda is executed something is instantiated but is not released. Something like that. Could you please tell me if this is true in this situation and if it is why?

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Odd problem with IE8 and z-index CSS property

- by DK39

I not been able to put one DIV over his parent DIV in Internet Explorer. With Firefox is working as suposed to. The odd part is that if I open the html file directly in IE, everything works fine. But if I upload to the server and open from there, the div is hidden underneath his parent. I've tried several z-index combinations and none works. Here's the code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>Test</title> <meta http-equiv="content-type" content="text-html; charset=utf-8" /> <style type="text/css"> .col { float:left; width:310px; margin-right:13px; } .art { position:relative; border-bottom: 1px solid #d0d0d0; font: normal normal bold 11px Arial,Verdana,Helvetica; color:#A0A0A0; width:310px; height:50px; top:0px; left: 0px; margin-right:10px; background-color:#F0F0F0; } .art a { padding:3px; display:block; width:304px; height:100%; color:#707070; } .art a:visited { color:#A0A0A0; } .art a:hover { background-color:#E0E0E0; } .box { z-index:1000; background-color:#A0A0A0; color:#404040; font: normal normal bold 11px Arial,Verdana,Helvetica; display:none; position:absolute; top:30px; left:10px; text-align:left; border:3px solid #707070; margin:5px 0px 5px 5px; font-size:10px; color:White; width:100%; } </style> <script type="text/javascript"> function sh(obj) { var el = document.getElementById(obj); if ( el.style.display != 'block' ) { el.style.display = 'block'; } else { el.style.display = 'none'; } } </script> </head> <body> <div class="col"> <div class="art"> <a href="" target="_blank" onmouseover="javascript:sh('i0')" onmouseout="javascript:sh('i0')">Title 1</a> <div id="i0" class="box"> <div class="text"> Les "chemises rouges" manifestent depuis la mi-mars pour faire tomber le gouvernement et occupent depuis trois semaines un quartier touristique et commerçant autour duquel ils ont érigé des barricades. </div> </div> </div> <div class="art"> <a href="" target="_blank" onmouseover="javascript:sh('i1')" onmouseout="javascript:sh('i1')">Title2</a> <div id="i1" class="box"> <div class="text"> Une association ardéchoise accueillant des séminaires de "bien-être" et de "développement personnel" a refusé d'accueillir un stage de danse en invoquant l'homosexualité des participants, ont indiqué aujourd'hui les organisateurs. </div> </div> </div> </div> </body> </html> What's is going on here?

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