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• How to run the HelloWorld ODE from the browser?

  - by tikky

  I develop a simple hello world project by using Eclipse IDE. I can run it from the IDE (Web Services - Test with Web Services Explorer). From that it work perfectly, but if I try to access the http://localhost:8080/ode/processes/HelloWorld/ It gives some exceptions. org.apache.axis2.AxisFault: The endpoint reference (EPR) for the Operation not found is /ode/processes/HelloWorld/ and the WSA Action = null at org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPhase.java:86) at org.apache.axis2.engine.Phase.invoke(Phase.java:308) at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:212) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:132) at org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUtil.java:125) at org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUtil.java:119) at org.apache.axis2.transport.http.AxisServlet$RestRequestProcessor.processURLRequest(AxisServlet.java:799) at org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:242) at org.apache.ode.axis2.hooks.ODEAxisServlet.doGet(ODEAxisServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:729) What may be the issue and how to develop it as, input values through the web browser and get the output from it. Thank you.

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• How to change attribute on Scala XML Element

  - by Dave

  I have an XML file that I would like to map some attributes of in with a script. For example: <a> <b attr1 = "100" attr2 = "50"> </a> might have attributes scaled by a factor of two: <a> <b attr1 = "200" attr2 = "100"> </a> This page has a suggestion for adding attributes but doesn't detail a way to map a current attribute with a function (this way would make that very hard): http://www.scalaclass.com/book/export/html/1 What I've come up with is to manually create the XML (non-scala) linked-list... something like: // a typical match case for running thru XML elements: case Elem(prefix, e, attributes, scope, children @ _*) => { var newAttribs = attributes for(attr <- newAttribs) attr.key match { case "attr1" => newAttribs = attribs.append(new UnprefixedAttribute("attr1", (attr.value.head.text.toFloat * 2.0f).toString, attr.next)) case "attr2" => newAttribs = attribs.append(new UnprefixedAttribute("attr2", (attr.value.head.text.toFloat * 2.0f).toString, attr.next)) case _ => } Elem(prefix, e, newAttribs, scope, updateSubNode(children) : _*) // set new attribs and process the child elements } Its hideous, wordy, and needlessly re-orders the attributes in the output, which is bad for my current project due to some bad client code. Is there a scala-esque way to do this?

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• How to make multiple queries with PHP prepared statements (Commands out of sync error)

  - by Tirithen

  I'm trying to run three MySQL queries from a PHP script, the first one works fine, but on the second one I get the "Commands out of sync; you can’t run this command now" error. I have managed to understand that I need to "empty" the resultset before preparing a new query but I can't seem to understand how. I thought that $statement-close; would do that for me. Here is the relevant part of the code: <?php $statement = $db_conn->prepare("CALL getSketches(?,?)"); // Prepare SQL routine to check if user is accepted $statement->bind_param("is", $user_id, $loaded_sketches); // Bind variables to send $statement->execute(); // Execute the query $statement->bind_result( // Set return varables $id, $name, $description, $visibility, $createdby_id, $createdby_name, $createdon, $permission ); $new_sketches_id = array(); while($statement->fetch()) { $result['newSketches'][$id] = array( "name" => $name, "description" => $description, "visibility" => $visibility, "createdById" => $createdby_id, "createdByName" => $createdby_name, "createdOn" => $createdon, "permission" => $permission ); $new_sketches_id[] = $id; } $statement->close; // Close satement $new_sketches_ids = implode(",", $new_sketches_id); // Get the new sketches elements $statement = $db_conn->prepare("CALL getElements(?,'',?,'00000000000000')"); // Prepare SQL routine to check if user is accepted // The script crashes here with $db_conn->error // "Commands out of sync; you can't run this command now" $statement->bind_param("si", $new_sketches_ids, $user_id); // Bind variables to send $statement->execute(); // Execute the query $statement->bind_result( // Set return varables $id, $user_id, $type, $attribute_d, $attribute_stroke, $attribute_strokeWidth, $sketch_id, $createdon ); while($statement->fetch()) { $result['newSketches'][$sketch_id]['newElements']["u".$user_id."e".$id] = array( "type" => $type, "d" => $attribute_d, "stroke" => $attribute_stroke, "strokeWidth" => $attribute_strokeWidth, ); } $statement->close; // Close satement ?> How can I make the second query without closing and reopening the entire database connection?

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• Using pam_python in a script running with mod_python

  - by markys

  Hi ! I would like to develop a web interface to allow users of a Linux system to do certain tasks related to their account. I decided to write the backend of the site using Python and mod_python on Apache. To authenticate the users, I thought I could use python_pam to query the PAM service. I adapted the example bundled with the module and got this: # out is the output stream used to print debug def auth(username, password, out): def pam_conv(aut, query_list, user_data): out.write("Query list: " + str(query_list) + "\n") # List to store the responses to the different queries resp = [] for item in query_list: query, qtype = item # If PAM asks for an input, give the password if qtype == PAM.PAM_PROMPT_ECHO_ON or qtype == PAM.PAM_PROMPT_ECHO_OFF: resp.append((str(password), 0)) elif qtype == PAM.PAM_PROMPT_ERROR_MSG or qtype == PAM.PAM_PROMPT_TEXT_INFO: resp.append(('', 0)) out.write("Our response: " + str(resp) + "\n") return resp # If username of password is undefined, fail if username is None or password is None: return False service = 'login' pam_ = PAM.pam() pam_.start(service) # Set the username pam_.set_item(PAM.PAM_USER, str(username)) # Set the conversation callback pam_.set_item(PAM.PAM_CONV, pam_conv) try: pam_.authenticate() pam_.acct_mgmt() except PAM.error, resp: out.write("Error: " + str(resp) + "\n") return False except: return False # If we get here, the authentication worked return True My problem is that this function does not behave the same wether I use it in a simple script or through mod_python. To illustrate this, I wrote these simple cases: my_username = "markys" my_good_password = "lalala" my_bad_password = "lololo" def handler(req): req.content_type = "text/plain" req.write("1- " + str(auth(my_username,my_good_password,req) + "\n")) req.write("2- " + str(auth(my_username,my_bad_password,req) + "\n")) return apache.OK if __name__ == "__main__": print "1- " + str(auth(my_username,my_good_password,sys.__stdout__)) print "2- " + str(auth(my_username,my_bad_password,sys.__stdout__)) The result from the script is : Query list: [('Password: ', 1)] Our response: [('lalala', 0)] 1- True Query list: [('Password: ', 1)] Our response: [('lololo', 0)] Error: ('Authentication failure', 7) 2- False but the result from mod_python is : Query list: [('Password: ', 1)] Our response: [('lalala', 0)] Error: ('Authentication failure', 7) 1- False Query list: [('Password: ', 1)] Our response: [('lololo', 0)] Error: ('Authentication failure', 7) 2- False I don't understand why the auth function does not return the same value given the same inputs. Any idea where I got this wrong ? Here is the original script, if that could help you. Thanks a lot !

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• Python OOP and lists

  - by Mikk

  Hi, I'm new to Python and it's OOP stuff and can't get it to work. Here's my code: class Tree: root = None; data = []; def __init__(self, equation): self.root = equation; def appendLeft(self, data): self.data.insert(0, data); def appendRight(self, data): self.data.append(data); def calculateLeft(self): result = []; for item in (self.getLeft()): if (type(item) == type(self)): data = item.calculateLeft(); else: data = item; result.append(item); return result; def getLeft(self): return self.data; def getRight(self): data = self.data; data.reverse(); return data; tree2 = Tree("*"); tree2.appendRight(44); tree2.appendLeft(20); tree = Tree("+"); tree.appendRight(4); tree.appendLeft(10); tree.appendLeft(tree2); print(tree.calculateLeft()); It looks like tree2 and tree are sharing list "data"? At the moment I'd like it to output something like [[20,44], 10, 4], but when I tree.appendLeft(tree2) I get RuntimeError: maximum recursion depth exceeded, and when i even won't appendLeft(tree2) it outputs [10, 20, 44, 4] (!!!). What am I missing here? I'm using Portable Python 3.0.1. Thank you

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• sql statement supposed to have 2 distinct rows, but only 1 is returned. for C# windows

  - by jello

  yeah so I have an sql statement that is supposed to return 2 rows. the first with psychological_id = 1, and the second, psychological_id = 2. here is the sql statement select * from psychological where patient_id = 12 and symptom = 'delire'; But with this code, with which I populate an array list with what is supposed to be 2 different rows, two rows exist, but with the same values: the second row. OneSymptomClass oneSymp = new OneSymptomClass(); ArrayList oneSympAll = new ArrayList(); string connStrArrayList = "Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\PatientMonitoringDatabase.mdf; " + "Initial Catalog=PatientMonitoringDatabase; " + "Integrated Security=True"; string queryStrArrayList = "select * from psychological where patient_id = " + patientID.patient_id + " and symptom = '" + SymptomComboBoxes[tag].SelectedItem + "';"; using (var conn = new SqlConnection(connStrArrayList)) using (var cmd = new SqlCommand(queryStrArrayList, conn)) { conn.Open(); using (SqlDataReader rdr = cmd.ExecuteReader()) { while (rdr.Read()) { oneSymp.psychological_id = Convert.ToInt32(rdr["psychological_id"]); oneSymp.patient_history_date_psy = (DateTime)rdr["patient_history_date_psy"]; oneSymp.strength = Convert.ToInt32(rdr["strength"]); oneSymp.psy_start_date = (DateTime)rdr["psy_start_date"]; oneSymp.psy_end_date = (DateTime)rdr["psy_end_date"]; oneSympAll.Add(oneSymp); } } conn.Close(); } OneSymptomClass testSymp = oneSympAll[0] as OneSymptomClass; MessageBox.Show(testSymp.psychological_id.ToString()); the message box outputs "2", while it's supposed to output "1". anyone got an idea what's going on?

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• Odd DOM Problem with Firefox

  - by Bob

  Hello. I'm experiencing an odd problem when trying to navigate through a table's rows and cells in a while loop using javascript. I'm using Firefox 3.5.7 on Win7 with Firebug enabled. I have this markup: <table> <tbody> <tr id='firstRow'><td>a</td><td>b</td><td>c</td></tr> <tr><td>a</td><td>b</td><td>c</td></tr> <tr><td>a</td><td>b</td><td>c</td></tr> </tbody> </table> And this javascript: var row = document.getElementById('firstRow'); console.log(row); // Row call 1 while (row) { console.log(row); // Row call 2 row = row.nextSibling; } The problem I'm having is that on the line commented "Row call 1", Firebug is outputting <tr id='firstRow'> as expected. However, in the while loop, Firebug is giving me <tr id='firstRow'> <TextNode textContent="\n"> It is giving me different output for the exact same row, even immediately after the while loop begins executing and nothing else touched the row. For subsequent rows, it of course does not have id='firstRow' as an attribute. The bigger problem this is giving me is that if I'm in the while loop, and I want to access a particular cell of the current row using row.cells[0], Firebug will give me an error that row.cells is undefined. I want to know if someone could shed some light on this situation I am experiencing.

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• SharePoint extensions for VS - which version have I got?

  - by Javaman59

  I'm using Visual Studio 2008, and have downloaded VSeWSS.exe 1.2, to enable Web Part development. I am new to SP development, and am already bewildered by the number of different versions of SP, and the VS add-ons. This particular problem has come up, which highlights my confusion. I selected Add - New Project - Visual C# - SharePoint- Web Part, accepted the defaults, and VS created a project, with the main file WebPart1.cs using System; using System.Runtime.InteropServices; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Serialization; using Microsoft.SharePoint; using Microsoft.SharePoint.WebControls; using Microsoft.SharePoint.WebPartPages; namespace WebPart1 { [Guid("9bd7e74c-280b-44d4-baa1-9271679657a0")] public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart { public WebPart1() { } protected override void CreateChildControls() // <-- This line { base.CreateChildControls(); // TODO: add custom rendering code here. // Label label = new Label(); // label.Text = "Hello World"; // this.Controls.Add(label); } } } The book I'm following, Essential SharePoint 2007, by Jeff Webb, has the following for the default project - using System; <...as previously> namespace WebPart1 { [Guid("9bd7e74c-280b-44d4-baa1-9271679657a0")] public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart { // ^ this is a new style (ASP.NET) web part! [author's comment] protected override void Render(HtmlTextWriter writer) // <-- This line { // This method draws the web part // TODO: add custom rendering code here. // Label label = new Label(); // writer.Write("Output HTML"); } } } The real reason for my concern is that in this chapter of the book the author frequently mentions the distinction between "old style" web parts, and "new style" web parts, as noted in his comment on the Render method. What's happened? Why has my default Web Part got a different signature to the authors?

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• Querying a database using Cocoa.

  - by S1syphus

  Hello everybody. Before I start a disclaimer, I should add a little disclaimer, that I am relatively new to Cocoa development and C in general. However I do have a copy of 'Cocoa Programming for Mac OS X 3rd edition' by Aaron Hillegass, which I am working through and using as a base, if anybody has a copy I am using the 'AmaZone' example on page 346 as a template and base. I trying to develop a small client app that takes a search string then displays results from a database accordingly. The database will contain a: list of files, their location, description & creation date, so for the moment the field number and types will remain the same. After looking around on SO, I saw something like: NSURL *myURL = [NSURL URLWithString:@"http://www.myserver.com/results.php"]; NSArray *sqlResults = [[NSArray alloc] initWithContentsOfURL:myURL]; I've worked with php before, so my current thinking after seeing this is create a php script on the server that queries the database, and creates an XML output. And with the XML response, just parse it. Would this be ok? as is there any major pitfalls anybody can see, that I can't. I know there are some database bundles, I've had a look at BaseTen for Postgres, but being relatively new to this, didn't want to get in over my head. Or if anybody else has any other suggestions and ideas, they would be greatly appreciated.

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• PHP: How to process SOAP response to get a tag value?

  - by understack

  I've a SOAP response in a var $soap_response like this: <SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0"> <SOAP-ENV:Header> <h3:__MethodSignature xsi:type="SOAP-ENC:methodSignature" SOAP-ENC:root="1" xmlns:h3="http://schemas.microsoft.com/clr/soap/messageProperties" xmlns:a2="http://schemas.microsoft.com/clr/ns/System.Collections">xsd:string a2:Hashtable</h3:__MethodSignature> </SOAP-ENV:Header> <SOAP-ENV:Body> <i4:ReturnDataSetResponse id="ref-1" xmlns:i4="http://schemas.microsoft.com/clr/nsassem/TOIServerAppl.clsRSchedule/TOIServerAppl"> <return href="#ref-6"/> </i4:ReturnDataSetResponse> <a3:DataSet id="ref-6" xmlns:a3="http://schemas.microsoft.com/clr/nsassem/System.Data/System.Data%2C%20Version%3D1.0.5000.0%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3Db77a5c561934e089"> <XmlSchema id="ref-7"><![CDATA[<?xml version="1.0" encoding="utf-16"?> <xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> <xs:element name="NewDataSet" msdata:IsDataSet="true"> <xs:complexType> <xs:choice maxOccurs="unbounded"> <xs:element name="Table"> <xs:complexType> <xs:sequence> <xs:element name="id" type="xs:long" msdata:targetNamespace="" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema>]]> </XmlSchema> <XmlDiffGram id="ref-8"> <id>4437031</id> </XmlDiffGram> </a3:DataSet> </SOAP-ENV:Body> </SOAP-ENV:Envelope> How can I extract id value from <id>4437031</id>? simplexml_load_string($soap_response); returns empty object array. I've seen someplaces that I might have to replace all those namespaces to make it work?

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• Execute SQL SP in Excel VBA

  - by TheOCD

  HI I am having problem with getting all the columns back when i execute following code in excel vba. I only get 6 out of 23 columns back. Connection, command etc works fine (i can see exec command in the SQL Profiler), data headers are created for all 23 columns but i only get data for 6 column. Side Note: it's not prod level code, have missed out error handling on purpose, sp works fine in SQL management studio, ASP.Net, C# win form app, it is for Excel 2003 connecting to SQL 2008. Can someone help me troubleshoot it? Dim connection As ADODB.connection Dim recordset As ADODB.recordset Dim command As ADODB.command Dim strProcName As String 'Stored Procedure name Dim strConn As String ' connection string. Dim selectedVal As String 'Set ADODB requirements Set connection = New ADODB.connection Set recordset = New ADODB.recordset Set command = New ADODB.command If Workbooks("Book2.xls").MultiUserEditing = True Then MsgBox "You do not have Exclusive access to the workbook at this time." & _ vbNewLine & "Please have all other users close the workbook and then try again.", vbOKOnly + vbExclamation Exit Sub Else On Error Resume Next ActiveWorkbook.ExclusiveAccess 'On Error GoTo No_Bugs End If 'set the active sheet Set oSht = Workbooks("Book2.xls").Sheets(1) 'get the connection string, if empty just exit strConn = ConnectionString() If strConn = "" Then Exit Sub End If ' selected value, if <NOTHING> just exit selectedVal = selectedValue() If selectedVal = "<NOTHING>" Then Exit Sub End If If Not oSht Is Nothing Then 'Open database connection connection.ConnectionString = strConn connection.Open ' set command stuff. command.ActiveConnection = connection command.CommandText = "GetAlbumByName" command.CommandType = adCmdStoredProc command.Parameters.Refresh command.Parameters(1).Value = selectedVal 'Execute stored procedure and return to a recordset Set recordset = command.Execute() If recordset.BOF = False And recordset.EOF = False Then Sheets("Sheet2").[A1].CopyFromRecordset recordset ' Create headers and copy data With Sheets("Sheet2") For Column = 0 To recordset.Fields.Count - 1 .Cells(1, Column + 1).Value = recordset.Fields(Column).Name Next .Range(.Cells(1, 1), .Cells(1, recordset.Fields.Count)).Font.Bold = True .Cells(2, 1).CopyFromRecordset recordset End With Else MsgBox "b4 BOF or after EOF.", vbOKOnly + vbExclamation End If 'Close database connection and clean up If CBool(recordset.State And adStateOpen) = True Then recordset.Close Set recordset = Nothing If CBool(connection.State And adStateOpen) = True Then connection.Close Set connection = Nothing Else MsgBox "oSheet2 is Nothing.", vbOKOnly + vbExclamation End If

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• Perl: remove relative path components?

  - by jnylen

  I need to get Perl to remove relative path components from a Linux path. I've found a couple of functions that almost do what I want, but: File::Spec->rel2abs does too little. It does not resolve ".." into a directory properly. Cwd::realpath does too much. It resolves all symbolic links in the path, which I do not want. Perhaps the best way to illustrate how I want this function to behave is to post a bash log where FixPath is a hypothetical command that gives the desired output: '/tmp/test'$ mkdir -p a/b/c1 a/b/c2 '/tmp/test'$ cd a '/tmp/test/a'$ ln -s b link '/tmp/test/a'$ ls b link '/tmp/test/a'$ cd b '/tmp/test/a/b'$ ls c1 c2 '/tmp/test/a/b'$ FixPath . # rel2abs works here ===> /tmp/test/a/b '/tmp/test/a/b'$ FixPath .. # realpath works here ===> /tmp/test/a '/tmp/test/a/b'$ FixPath c1 # rel2abs works here ===> /tmp/test/a/b/c1 '/tmp/test/a/b'$ FixPath ../b # realpath works here ===> /tmp/test/a/b '/tmp/test/a/b'$ FixPath ../link/c1 # neither one works here ===> /tmp/test/a/link/c1 '/tmp/test/a/b'$ FixPath missing # should work for nonexistent files ===> /tmp/test/a/b/missing

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• Recognize Dates In A String

  - by Tim Scott

  I want a class something like this: public interface IDateRecognizer { DateTime[] Recognize(string s); } The dates might exist anywhere in the string and might be any format. For now, I could limit to U.S. culture formats. The dates would not be delimited in any way. They might have arbitrary amounts of whitespace between parts of the date. The ideas I have are: ANTLR Regex Hand rolled I have never used ANTLR, so I would be learning from scratch. I wonder if there are libraries or code samples out there that do something similar that could jump start me. Is ANTLR too heavy for such a narrow use? I have used Regex a lot before, but I hate it for all the reasons that most people hate it. I could certainly hand roll it but I'd rather not re-solve a solved problem. Suggestions? UPDATE: Here is an example. Given this input: This is a date 11/3/63. Here is another one: November 03, 1963; and another one Nov 03, 63 and some more (11/03/1963). The dates could be in any U.S. format. They might have dashes like 11-2-1963 or weird extra whitespace inside like this: Nov   3,   1963, and even maybe the comma is missing like [Nov 3 63] but that's an edge case. The output should be an array of seven DateTimes. Each date would be the same: 11/03/1963 00:00:00.

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• Javascript Object.Watch for all browsers?

  - by SeanW

  Hey all, I was looking for an easy way to monitor an object or variable for changes, and I found Object.Watch that's supported in Mozilla browsers, but not IE. So I started searching around to see if anyone had written some sort of equivalent. About the only thing I've found has been a jQuery plugin (http://plugins.jquery.com/files/jquery-watch.js.txt), but I'm not sure if that's the best way to go. I certainly use jQuery in most of my projects, so I'm not worried about the jQuery aspect... Anyway, the question: can someone show me a working example of that jQuery plugin? I'm having problems making it work... Or, does anyone know of any better alternatives that would work cross browser? Thanks! Update after answers: Thanks everyone for the responses! I tried out the code posted here: http://webreflection.blogspot.com/2009/01/internet-explorer-object-watch.html But I couldn't seem to make it work with IE. The code below works fine in FireFox, but does nothing in IE. In Firefox, each time watcher.status is changed, the document.write in watcher.watch is called and you can see the output on the page. In IE, that doesn't happen, but I can see that watcher.status is updating the value, because the last document.write shows the correct value (in both IE and FF). But, if the callback function isn't called, then that's kind of pointless... :) Am I missing something? var options = {'status': 'no status'}, watcher = createWatcher(options); watcher.watch("status", function(prop, oldValue, newValue) { document.write("old: " + oldValue + ", new: " + newValue + "<br>"); return newValue; }); watcher.status = 'asdf'; watcher.status = '1234'; document.write(watcher.status + "<br>");

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• Strange behavior of move with strings

  - by Umair Ahmed

  I am testing some enhanced string related functions with which I am trying to use move as a way to copy strings around for faster, more efficient use without delving into pointers. While testing a function for making a delimited string from a TStringList, I encountered a strange issue. The compiler referenced the bytes contained through the index when it was empty and when a string was added to it through move, index referenced the characters contained. Here is a small downsized barebone code sample:- unit UI; interface uses System.SysUtils, System.Types, System.UITypes, System.Rtti, System.Classes, System.Variants, FMX.Types, FMX.Controls, FMX.Forms, FMX.Dialogs, FMX.Layouts, FMX.Memo; type TForm1 = class(TForm) Results: TMemo; procedure FormCreate(Sender: TObject); end; var Form1: TForm1; implementation {$R *.fmx} function StringListToDelimitedString ( const AStringList: TStringList; const ADelimiter: String ): String; var Str : String; Temp1 : NativeInt; Temp2 : NativeInt; DelimiterSize : Byte; begin Result := ' '; Temp1 := 0; DelimiterSize := Length ( ADelimiter ) * 2; for Str in AStringList do Temp1 := Temp1 + Length ( Str ); SetLength ( Result, Temp1 ); Temp1 := 1; for Str in AStringList do begin Temp2 := Length ( Str ) * 2; // Here Index references bytes in Result Move ( Str [1], Result [Temp1], Temp2 ); // From here the index seems to address characters instead of bytes in Result Temp1 := Temp1 + Temp2; Move ( ADelimiter [1], Result [Temp1], DelimiterSize ); Temp1 := Temp1 + DelimiterSize; end; end; procedure TForm1.FormCreate(Sender: TObject); var StrList : TStringList; Str : String; begin // Test 1 : StringListToDelimitedString StrList := TStringList.Create; Str := ''; StrList.Add ( 'Hello1' ); StrList.Add ( 'Hello2' ); StrList.Add ( 'Hello3' ); StrList.Add ( 'Hello4' ); Str := StringListToDelimitedString ( StrList, ';' ); Results.Lines.Add ( Str ); StrList.Free; end; end. Please devise a solution and if possible, some explanation. Alternatives are welcome too.

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• Trim characters from RSS feed

  - by egr103

  I'm calling in a RSS feed to my website using PHP. Currently my code below is calling in the entire contents for pubDate: <pubDate>Thu, 12 Sep 2013 07:23:59 +0000</pubDate> How do I just display the day and month from the above example i.e. 12 Sep? EDIT I should clarify, the above line of code is an example output I currently get but as I'm calling the latest 3 posts from an RSS feed, this date and time will vary. I therefore need the code to be more dynamic (if that's the right term!) This code is my full code that fetches the contents of an RSS feed: <?php $counter = 0; $xml=simplexml_load_file("http://tutorial.world.edu/feed/"); foreach ($xml->channel->item as $item) { $title = (string) $item->title; // Title Post $link = (string) $item->link; // Url Link $pubDate = (string) $item->pubDate; // date $description = (string) $item->description; //Description Post echo '<div class="display-rss-feed"><a href="'.$link.'" target="_blank" title="" >'.$title.' </a><br/><br/>'; echo $description.'<hr><p style="background-color:#e4f;">'.$pubDate.'</p></div>'; if($counter == 2 ) { break; } else { $counter++; } } ?>

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• Getting hibernate to log clob parameters

  - by SCdF

  (see here for the problem I'm trying to solve) How do you get hibernate to log clob values it's going to insert. It is logging other value types, such as Integer etc. I have the following in my log4j config: log4j.logger.net.sf.hibernate.SQL=DEBUG log4j.logger.org.hibernate.SQL=DEBUG log4j.logger.net.sf.hibernate.type=DEBUG log4j.logger.org.hibernate.type=DEBUG Which produces output such as: (org.hibernate.SQL) insert into NoteSubstitutions (note, listIndex, substitution) values (?, ?, ?) (org.hibernate.type.LongType) binding '170650' to parameter: 1 (org.hibernate.type.IntegerType) binding '0' to parameter: 2 (org.hibernate.SQL) insert into NoteSubstitutions (note, listIndex, substitution) values (?, ?, ?) (org.hibernate.type.LongType) binding '170650' to parameter: 1 (org.hibernate.type.IntegerType) binding '1' to parameter: 2 However you'll note that it never displays parameter: 3 which is our clob. What I would really want is something like: (org.hibernate.SQL) insert into NoteSubstitutions (note, listIndex, substitution) values (?, ?, ?) (org.hibernate.type.LongType) binding '170650' to parameter: 1 (org.hibernate.type.IntegerType) binding '0' to parameter: 2 (org.hibernate.type.ClobType) binding 'something' to parameter: 3 (org.hibernate.SQL) insert into NoteSubstitutions (note, listIndex, substitution) values (?, ?, ?) (org.hibernate.type.LongType) binding '170650' to parameter: 1 (org.hibernate.type.IntegerType) binding '1' to parameter: 2 (org.hibernate.type.ClobType) binding 'something else' to parameter: 3 How do I get it to show this in the log?

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• How to get DIVs into this code via JQuery

  - by ludz

  Heya everyone I been struggling along with this piece of code for the longest time, its driving me insane. I am trying many different things and looking at past posts here but nothing seems to be helping. Basicly i have a jquery pagination code in place and i want to add animated transitions between pages. With some assistance i got that working correctly however this causes the page to jump around as the new items fade in and out. To fix this i need a DIV wrapped around each selection of results. I have been trying to use .wrap .html .wrapinner .append and i cant get any of it to work properly. The 2 areas where i beleive the code needs to be place are as follows: $('#content').children().slice(0, show_per_page).css('display', 'block'); and $('#content').children().fadeOut('slow').slice(start_from, end_on).fadeIn('slow'); Full original code: http://tutsvalley.com/tutorials/making-a-jquery-pagination-system/ Only the second line of code posted here has been altered. Basicly i want to wrap each group of sliced output in a DIV. I hope that makes sense, if you need anymore information please let me know. Any ideas or suggestions on what to try it would be much apreciated as its currently driving me crazy :) Ludz~

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• GET and XMLHttpRequest

  - by Neethusha

  i have an XMLHttpRequest.The request passes a parameter to my php server code in /var/www. But i cannot seem to be able to extract the parameter back at the server side. below i have pasted both the codes: javascript: function getUsers(u) { alert(u);//here u is 'http://start.ubuntu.com/9.10' xmlhttp=new XMLHttpRequest(); var url="http://localhost/servercode.php"+"?q="+u; xmlhttp.onreadystatechange= useHttpResponse; xmlhttp.open("GET",url,true); xmlhttp.send(null); } function useHttpResponse() { if (xmlhttp.readyState==4 ) { var response = eval('('+xmlhttp.responseText+')'); for(i=0;i<response.Users.length;i++) alert(response.Users[i].UserId); } } servercode.php: <?php $q=$_GET["q"]; //$q="http://start.ubuntu.com/9.10"; $con=mysql_connect("localhost","root","blaze"); if(!$con) {die('could not connect to database'.mysql.error()); } mysql_select_db("BLAZE",$con) or die("No such Db"); $result=mysql_query("SELECT * FROM USERURL WHERE URL='$q'"); if($result == null) echo 'nobody online'; else { header('Content-type: text/html'); echo "{\"Users\":["; while($row=mysql_fetch_array($result)) { echo '{"UserId":"'.$row[UsrID].'"},'; } echo "]}"; } mysql_close($con); ?> this is not giving the required result...although the commented statement , where the variable is assigned explicitly the value of the argument works...it alerts me the required output...but somehow the GET method's parameter is not reaching my php or thats how i think it is....pls help....

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• In Ruby, how to implement 20 - point and point - 20 using coerce() ?

  - by Jian Lin

  In Ruby, the operation of point - 20 20 - point are to be implemented. But the following code: class Point attr_accessor :x, :y def initialize(x,y) @x, @y = x, y end def -(q) if (q.is_a? Fixnum) return Point.new(@x - q, @y - q) end Point.new(@x - q.x, @y - q.y) end def -@ Point.new(-@x, -@y) end def *(c) Point.new(@x * c, @y * c) end def coerce(something) [self, something] end end p = Point.new(100,100) q = Point.new(80,80) p (-p) p p - q p q - p p p * 3 p 5 * p p p - 30 p 30 - p Output: #<Point:0x2424e54 @x=-100, @y=-100> #<Point:0x2424dc8 @x=20, @y=20> #<Point:0x2424d3c @x=-20, @y=-20> #<Point:0x2424cc4 @x=300, @y=300> #<Point:0x2424c38 @x=500, @y=500> #<Point:0x2424bc0 @x=70, @y=70> #<Point:0x2424b20 @x=70, @y=70> 30 - p will actually be taken as p - 30 by the coerce function. Can it be made to work? I am actually surprise that the - method won't coerce the argument this way: class Fixnum def -(something) if (/* something is unknown class */) a, b = something.coerce(self) return -(a - b) # because we are doing a - b but we wanted b - a, so it is negated end end end that is, the function returns a negated version of a - b instead of just returning a - b.

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• Textarea Adding Space To Beginning of Text?

  - by Jascha

  I'm having a strange problem in that I have php inserting text into a <textarea> and the <textarea> is adding one white space to the top of my text. I created an example page to display the problem... here it the code behind the page. <textarea style="width:600px;height:100px;"><?php get_film_info('main description'); ?></textarea> <br> <textarea id="mainDescription style="width:600px;height:100px;">Text just typed in</textarea> <br> <?php get_film_info('main description'); ?> You can see that without the <textarea> tag, the text does not include the indent. My database also reflects no indent, as well as the php output outside of the <textarea>... Any clue what could be going on? the sample page -J

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• Testing Finite State Machines

  - by Pondidum

  I have inherited a large and firaly complex state machine at work. It has 31 possbile states to be in. It has the following inputs: Enum: Current State (so 0 - 30) Enum: source (currently only 2 entries) Boolean: Request Boolean: type Enum: Status (3 states) Enum: Handling (3 states) Boolean: Completed The 31 States are really needed (big business process). Breaking into seperate state machines doesnt seem feasable - each state is distinct. I have written tests for one set of inputs (the most common set), with one test per input (all inputs constant, except for the State input): [Subject("Application Process States")] public class When_state_is_meeting2Requested : AppProcessBase { Establish context = () => { //Setup.... }; Because of = () => process.Load(jas, vac); It Current_node_should_be_meeting2Requested = () => process.CurrentNode.ShouldBeOfType<meetingRequestedNode>(); It Can_move_to_clientDeclined = () => Check(process, process.clientDeclined); It Can_move_to_meeting1Arranged = () => Check(process, process.meeting1Arranged); It Can_move_to_meeting2Arranged = () => Check(process, process.meeting2Arranged); It Can_move_to_Reject = () => Check(process, process.Reject); It Cannot_move_to_any_other_state = () => AllOthersFalse(process); } As no one is entirely sure on what the output should be for each state and set of inputs i have been starting to write tests for it, however on calculation i will need to write 4320 ( 30*2*2*2*3*3*2 ) tests for it. Does anyone have any suggestions on how i should go about testing this?

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• Database Functional Programming in Clojure

  - by Ralph

  "It is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail." - Abraham Maslow I need to write a tool to dump a large hierarchical (SQL) database to XML. The hierarchy consists of a Person table with subsidiary Address, Phone, etc. tables. I have to dump thousands of rows, so I would like to do so incrementally and not keep the whole XML file in memory. I would like to isolate non-pure function code to a small portion of the application. I am thinking that this might be a good opportunity to explore FP and concurrency in Clojure. I can also show the benefits of immutable data and multi-core utilization to my skeptical co-workers. I'm not sure how the overall architecture of the application should be. I am thinking that I can use an impure function to retrieve the database rows and return a lazy sequence that can then be processed by a pure function that returns an XML fragment. For each Person row, I can create a Future and have several processed in parallel (the output order does not matter). As each Person is processed, the task will retrieve the appropriate rows from the Address, Phone, etc. tables and generate the nested XML. I can use a a generic function to process most of the tables, relying on database meta-data to get the column information, with special functions for the few tables that need custom processing. These functions could be listed in a map(table name -> function). Am I going about this in the right way? I can easily fall back to doing it in OO using Java, but that would be no fun. BTW, are there any good books on FP patterns or architecture? I have several good books on Clojure, Scala, and F#, but although each covers the language well, none look at the "big picture" of function programming design.

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• Methods and properties in scheme - is object oriented programming possible in scheme?

  - by incrediman

  I will use a simple example to illustrate my question. In Java, C, or any other OOP language, I could create a pie class in a way similar to this: class Apple{ public String flavor; public int pieces; private int tastiness; public goodness(){ return tastiness*pieces; } } What's the best way to do that with Scheme? I suppose I could do with something like this: (define make-pie (lambda (flavor pieces tastiness) (list flavor pieces tastiness))) (define pie-goodness (lambda (pie) (* (list-ref pie 1) (list-ref pie 2)))) (pie-goodness (make-pie 'cherry 2 5)) ;output: 10 ...where cherry is the flavor, 2 is the pieces, and 5 is the tastiness. However then there's no type-safety or visibility, and everything's just shoved in an unlabeled list. How can I improve that? Sidenote: The make-pie procedure expects 3 arguments. If I want to make some of them optional (like I'd be able to in curly-brace languages like Java or C), is it good practice to just take the arguments in as a list (that is treat the arguments as a list - not require one argument which is a list) and deal with them that way?

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• Granite DS Actionscript Code Generation Ant cannot find class error

  - by Roaders

  I am trying to get my Ant build to run the granite DS Actionscript code generation task and am running into some problems. At the moment I am getting this error: BUILD FAILED C...\build.xml:62: Could not load Java class file: SampleDTOOne.class So the .class files are obviously being found. I am not however sure if this error means that the it cannot load the .class file or that it cannot find the actual java source code. My Ant task definition looks like this: <classpath> <pathelement location="C.../src/packages/" /> </classpath> <fileset dir="${base.build.dir}/jc/classes/gpbit/packageName"> <include name="*.class" /> </fileset> </gas3> I have tried many different values for the classpath but cannot get anythign to work. I do not like the path that I am using to find the .class files but again at the moment this is the only one I can get to work. None of the variables seem to make it any easier to get to this location. The fileset is definitely working as it definitely found the .clas files to include the name in the error message. More detailed error message: [gas3] Using output dir: C...trunk\plugin\build/etc/src/as3 [gas3] Using classpath: C...\trunk\plugin\src\packages [gas3] Loading all Java classes referenced by inner fileset(s) { [gas3] java.lang.ClassNotFoundException: SampleDTOOne [gas3] at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1361) any help much appreciated

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