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• video calling (center)

  - by rrejc

  We are starting to develop a new application and I'm searching for information/tips/guides on application architecture. Application should: read the data from an external (USB) device send the data to the remote server (through internet) receive the data from the remote server perform a video call with to the calling (support) center receive a video call call from the calling (support) center support touch screens In addition: some of the data should also be visible through the web page. So I was thinking about: On the server side: use the database (probably MS SQL) use ORM (nHibernate) to map the data from the DB to the domain objects create a layer with business logic in C# create a web (WCF) services (for client application) create an asp.net mvc application (for item 7.) to enable data view through the browser On the client side I would use WPF 4 application which will communicate with external device and the wcf services on the server. So far so good. Now the problem begins. I have no idea how to create a video call (outgoing or incoming) part of the application. I believe that there is no problem to communicate with microphone, speaker, camera with WPF/C#. But how to communicate with the call center? What protocol and encoding should be used? I think that I will need to create some kind of server which will: have a list of operators in the calling center and track which operator is occupied and which operator is free have a list of connected end users receive incoming calls from end users and delegate call to free operator delegate calls from calling center to the end user Any info, link, anything on where to start would be much appreciated. Many thanks!

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• Problem in JsonResult

  - by Saravanan I M

  I am using the jsonresult for listing all the cities under a country. I retrieve the data from database and load it to a dropdown list using jquery. The problem is if the cities goes beyond 3000 then the jsonresult is not working. <script type="text/javascript"> $(document).ready(function () { //Hook onto the MakeID list's onchange event $("#Country").change(function () { //build the request url $("#HomeTown").empty(); var url = '<%= Url.Content("~/") %>' + "Location/GetCitiesByCountry/" + $("#Country").val(); $.getJSON(url, function (data) { $.each(data, function (index, optionData) { $("#HomeTown").append("<option value='" + optionData.geonameid + "'>" + optionData.asciiname + "</option>"); }); $("#HomeTown").option[0].selected = true; }); }).change(); }); </script>

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• D callbacks in C functions

  - by Caspin

  I am writing D2 bindings for Lua. This is in one of the Lua header files. typedef int (*lua_CFunction) (lua_State *L); I assume the equivalent D2 statement would be: extern(C) alias int function( lua_State* L ) lua_CFunction; Lua also provides an api function: void lua_pushcfunction( lua_State* L, string name, lua_CFunction func ); If I want to push a D2 function does it have to be extern(C) or can I just use the function? int dfunc( lua_State* L ) { std.stdio.writeln("dfunc"); } extern(C) int cfunc( lua_State* L ) { std.stdio.writeln("cfunc"); } lua_State* L = lua_newstate(); lua_pushcfunction(L, "cfunc", &cfunc); //This will definitely work. lua_pushcfunction(L, "dfunc", &dfunc); //Will this work? If I can only use cfunc, why? I don't need to do anything like that in C++. I can just pass the address of a C++ function to C and everything just works.

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• How do I catch jQuery $.getJSON (or $.ajax with datatype set to 'jsonp') error when using JSONP?

  - by Andy May

  Is it possible to catch an error when using JSONP with jQuery? I've tried both the $.getJSON and $.ajax methods but neither will catch the 404 error I'm testing. Here is what I've tried (keep in mind that these all work successfully, but I want to handle the case when it fails): jQuery.ajax({ type: "GET", url: handlerURL, dataType: "jsonp", success: function(results){ alert("Success!"); }, error: function(XMLHttpRequest, textStatus, errorThrown){ alert("Error"); } }); And also: jQuery.getJSON(handlerURL + "&callback=?", function(jsonResult){ alert("Success!"); }); I've also tried adding the $.ajaxError but that didn't work either: jQuery(document).ajaxError(function(event, request, settings){ alert("Error"); }); Thanks in advance for any replies!

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• Jquery hover to only have effect for certain amount of time

  - by Andrew Cassidy

  Hi, I'm using a jquery hover effect but would only like the effect to last for around a second when rolled over....ie user rolls over image, it changes for a second, then reverts back to the original image. $(document).ready(function(){ $(function() { $('.rollover').hover(function() { var currentImg = $(this).attr('src'); $(this).attr('src', $(this).attr('hover')); $(this).attr('hover', currentImg); }, function() { var currentImg = $(this).attr('src'); $(this).attr('src', $(this).attr('hover')); $(this).attr('hover', currentImg); }); }); }); This is the code I'm using for the standard hover. Any help would be great, thanks.

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• jQuery Validation error...

  - by Povylas

  Hi, I have been struggling with this jQuery Validation Plugin. Here is the code: <script type="text/javascript"> $(function() { var validator = $('#signup').validate({ errorElement: 'span', rules: { username: { required: true, minlenght: 6 //remote: "check-username.php" }, password: { required: true, minlength: 5 }, confirm_password: { required: true, minlength: 5, equalTo: "#password" }, email: { required: true, email: true }, agree: "required" }, messages: { username: { required: "Please enter a username", minlength: "Your username must consist of at least 6 characters" //remote: "Somenoe have already chosen nick like this." }, password: { required: "Please provide a password", minlength: "Your password must be at least 5 characters long" }, confirm_password: { required: "Please provide a password", minlength: "Your password must be at least 5 characters long", equalTo: "Please enter the same password as above" }, email: "Please enter a valid email address", agree: "Please accept our policy" } }); var root = $("#wizard").scrollable({size: 1, clickable: false}); // some variables that we need var api = root.scrollable(); $("#data").click(function() { validator.form(); }); // validation logic is done inside the onBeforeSeek callback api.onBeforeSeek(function(event, i) { if($("#signup").valid() == false){ return false; }else{ return true; } $("#status li").removeClass("active").eq(i).addClass("active"); }); //if tab is pressed on the next button seek to next page root.find("button.next").keydown(function(e) { if (e.keyCode == 9) { // seeks to next tab by executing our validation routine api.next(); e.preventDefault(); } }); $('button.fin').click(function(){ parent.$.fn.fancybox.close() }); }); </script> And here is the error: $.validator.methods[method] is undefined http://www.vvv.vhost.lt/js/jquery-validate/jquery.validate.min.js Line 15 I am completely confused... Maybe some kind of handler is needed? I would be grateful for any kind of answer.

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• Python thread pool similar to the multiprocessing Pool?

  - by Martin

  Is there a Pool class for worker threads, similar to the multiprocessing module's Pool class? I like for example the easy way to parallelize a map function def long_running_func(p): c_func_no_gil(p) p = multiprocessing.Pool(4) xs = p.map(long_running_func, range(100)) however I would like to do it without the overhead of creating new processes. I know about the GIL. However, in my usecase, the function will be an IO-bound C function for which the python wrapper will release the GIL before the actual function call. Do I have to write my own threading pool?

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• R: How to tell lapply to ignore an error and process the next thing in the list?

  - by John

  I have an example function below that reads in a date as a string and returns it as a date object. If it reads a string that it cannot convert to a date, it returns an error. testFunction <- function (date_in) { return(as.Date(date_in)) } testFunction("2010-04-06") # this works fine testFunction("foo") # this returns an error Now, I want to use lapply and apply this function over a list of dates: dates1 = c("2010-04-06", "2010-04-07", "2010-04-08") lapply(dates1, testFunction) # this works fine But if I want to apply the function over a list when one string in the middle of two good dates returns an error, what is the best way to deal with this? dates2 = c("2010-04-06", "foo", "2010-04-08") lapply(dates2, testFunction) I presume that I want a try catch in there, but is there a way to catch the error for the "foo" string whilst asking lapply to continue and read the third date?

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• user creating/saving

  - by Xaver

  i want to write 2 program: 1) programm saves all local users to the file. 2) loads file find that users not found on local machine and create user. for searching all users which create on local machine i use next code: foreach (ManagementObject user in userSearcher.Get()) { if ((bool)user["LocalAccount"]) { string UserName = (string)user["FullName"]; } } How can i save the settings of user by name and create user?

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• Python: load variables in a dict into namespace

  - by celil

  I want to use a bunch of local variables defined in a function, outside of the function, so I am passing x=locals() as a return value. How can I load all the variables defined in that dictionary into the namespace outside the function, so that instead of accessing the value using x['variable'], I could simply use variable.

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• When onblur occurs, how can I find out which element focus went *to*?

  - by Michiel Borkent

  Suppose I attach an onblur function to an html input box like this: <input id="myInput" onblur="function() { ... }"></input> Is there a way to get the ID of the element which caused the onblur event to fire (the element which was clicked) inside the function? How? For example, suppose I have a span like this: <span id="mySpan">Hello World</span> If I click the span right after the input element has focus, the input element will lose its focus. How does the function know that it was mySpan that was clicked? PS: If the onclick event of the span would occur before the onblur event of the input element my problem would be solved, because I could set some status value indicating a specific element had been clicked. PPS: The background of this problem is that I want to trigger an Ajax.AutoCompleter control externally (from a clickable element) to show its suggestions, without the suggestions disappearing immediately because of the onblur event on the input element. So I want to check in the OnBlur function if one specific element has been clicked, and if so, ignore the blur event.

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• Delphi: Fast(er) widestring concatenation

  - by Ian Boyd

  i have a function who's job is to convert an ADO Recordset into html: class function RecordsetToHtml(const rs: _Recordset): WideString; And the guts of the function involves a lot of wide string concatenation: while not rs.EOF do begin Result := Result+CRLF+ '<TR>'; for i := 0 to rs.Fields.Count-1 do Result := Result+'<TD>'+VarAsString(rs.Fields[i].Value)+'</TD>'; Result := Result+'</TR>'; rs.MoveNext; end; With a few thousand results, the function takes, what any user would feel, is too long to run. The Delphi Sampling Profiler shows that 99.3% of the time is spent in widestring concatenation (@WStrCatN and @WstrCat). Can anyone think of a way to improve widestring concatenation? i don't think Delphi 5 has any kind of string builder. And Format doesn't support Unicode. And to make sure nobody tries to weasel out: pretend you are implementing the interface: IRecordsetToHtml = interface(IUnknown) function RecordsetToHtml(const rs: _Recordset): WideString; end; Update One I thought of using an IXMLDOMDocument, to build up the HTML as xml. But then i realized that the final HTML would be xhtml and not html - a subtle, but important, difference. Update Two Microsoft knowledge base article: How To Improve String Concatenation Performance

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• Using recursion an append in prolog

  - by Adrian

  Lets say that I would like to construct a list (L2) by appending elements of another list (L) one by one. The result should be exactly the same as the input. This task is silly, but it'll help me understand how to recurse through a list and remove certain elements. I have put together the following code: create(L, L2) :- (\+ (L == []) -> L=[H|T], append([H], create(T, L2), L2);[]). calling it by create([1,2,3,4], L2) returns L2 = [1|create([2,3,4], **)\. which is not a desired result.

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• Is the salt contained in a phpass hash or do you need to salt its input?

  - by Exception e

  phpass is a widely used hashing 'framework'. Is it good practice to salt the plain password before giving it to PasswordHash (v0.2), like so?: $dynamicSalt = $record['salt']; $staticSalt = 'i5ininsfj5lt4hbfduk54fjbhoxc80sdf'; $plainPassword = $_POST['password']; $password = $plainPassword . $dynamicSalt . $staticSalt; $passwordHash = new PasswordHash(8, false); $storedPassword = $passwordHash->HashPassword($password); For reference the phpsalt class: # Portable PHP password hashing framework. # # Version 0.2 / genuine. # # Written by Solar Designer <solar at openwall.com> in 2004-2006 and placed in # the public domain. # # # class PasswordHash { var $itoa64; var $iteration_count_log2; var $portable_hashes; var $random_state; function PasswordHash($iteration_count_log2, $portable_hashes) { $this->itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'; if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31) $iteration_count_log2 = 8; $this->iteration_count_log2 = $iteration_count_log2; $this->portable_hashes = $portable_hashes; $this->random_state = microtime() . getmypid(); } function get_random_bytes($count) { $output = ''; if (is_readable('/dev/urandom') && ($fh = @fopen('/dev/urandom', 'rb'))) { $output = fread($fh, $count); fclose($fh); } if (strlen($output) < $count) { $output = ''; for ($i = 0; $i < $count; $i += 16) { $this->random_state = md5(microtime() . $this->random_state); $output .= pack('H*', md5($this->random_state)); } $output = substr($output, 0, $count); } return $output; } function encode64($input, $count) { $output = ''; $i = 0; do { $value = ord($input[$i++]); $output .= $this->itoa64[$value & 0x3f]; if ($i < $count) $value |= ord($input[$i]) << 8; $output .= $this->itoa64[($value >> 6) & 0x3f]; if ($i++ >= $count) break; if ($i < $count) $value |= ord($input[$i]) << 16; $output .= $this->itoa64[($value >> 12) & 0x3f]; if ($i++ >= $count) break; $output .= $this->itoa64[($value >> 18) & 0x3f]; } while ($i < $count); return $output; } function gensalt_private($input) { $output = '$P$'; $output .= $this->itoa64[min($this->iteration_count_log2 + ((PHP_VERSION >= '5') ? 5 : 3), 30)]; $output .= $this->encode64($input, 6); return $output; } function crypt_private($password, $setting) { $output = '*0'; if (substr($setting, 0, 2) == $output) $output = '*1'; if (substr($setting, 0, 3) != '$P$') return $output; $count_log2 = strpos($this->itoa64, $setting[3]); if ($count_log2 < 7 || $count_log2 > 30) return $output; $count = 1 << $count_log2; $salt = substr($setting, 4, 8); if (strlen($salt) != 8) return $output; # We're kind of forced to use MD5 here since it's the only # cryptographic primitive available in all versions of PHP # currently in use. To implement our own low-level crypto # in PHP would result in much worse performance and # consequently in lower iteration counts and hashes that are # quicker to crack (by non-PHP code). if (PHP_VERSION >= '5') { $hash = md5($salt . $password, TRUE); do { $hash = md5($hash . $password, TRUE); } while (--$count); } else { $hash = pack('H*', md5($salt . $password)); do { $hash = pack('H*', md5($hash . $password)); } while (--$count); } $output = substr($setting, 0, 12); $output .= $this->encode64($hash, 16); return $output; } function gensalt_extended($input) { $count_log2 = min($this->iteration_count_log2 + 8, 24); # This should be odd to not reveal weak DES keys, and the # maximum valid value is (2**24 - 1) which is odd anyway. $count = (1 << $count_log2) - 1; $output = '_'; $output .= $this->itoa64[$count & 0x3f]; $output .= $this->itoa64[($count >> 6) & 0x3f]; $output .= $this->itoa64[($count >> 12) & 0x3f]; $output .= $this->itoa64[($count >> 18) & 0x3f]; $output .= $this->encode64($input, 3); return $output; } function gensalt_blowfish($input) { # This one needs to use a different order of characters and a # different encoding scheme from the one in encode64() above. # We care because the last character in our encoded string will # only represent 2 bits. While two known implementations of # bcrypt will happily accept and correct a salt string which # has the 4 unused bits set to non-zero, we do not want to take # chances and we also do not want to waste an additional byte # of entropy. $itoa64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; $output = '$2a$'; $output .= chr(ord('0') + $this->iteration_count_log2 / 10); $output .= chr(ord('0') + $this->iteration_count_log2 % 10); $output .= '$'; $i = 0; do { $c1 = ord($input[$i++]); $output .= $itoa64[$c1 >> 2]; $c1 = ($c1 & 0x03) << 4; if ($i >= 16) { $output .= $itoa64[$c1]; break; } $c2 = ord($input[$i++]); $c1 |= $c2 >> 4; $output .= $itoa64[$c1]; $c1 = ($c2 & 0x0f) << 2; $c2 = ord($input[$i++]); $c1 |= $c2 >> 6; $output .= $itoa64[$c1]; $output .= $itoa64[$c2 & 0x3f]; } while (1); return $output; } function HashPassword($password) { $random = ''; if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) { $random = $this->get_random_bytes(16); $hash = crypt($password, $this->gensalt_blowfish($random)); if (strlen($hash) == 60) return $hash; } if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) { if (strlen($random) < 3) $random = $this->get_random_bytes(3); $hash = crypt($password, $this->gensalt_extended($random)); if (strlen($hash) == 20) return $hash; } if (strlen($random) < 6) $random = $this->get_random_bytes(6); $hash = $this->crypt_private($password, $this->gensalt_private($random)); if (strlen($hash) == 34) return $hash; # Returning '*' on error is safe here, but would _not_ be safe # in a crypt(3)-like function used _both_ for generating new # hashes and for validating passwords against existing hashes. return '*'; } function CheckPassword($password, $stored_hash) { $hash = $this->crypt_private($password, $stored_hash); if ($hash[0] == '*') $hash = crypt($password, $stored_hash); return $hash == $stored_hash; } }

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• Complicated jQuery .hover Work

  - by Paul Herz

  The following code is giving me a lot of trouble. To note, .hover changes the background image. Firstly, how can I combine the two with .hover rather than a separate mouseenter and mouseleave? Second, How can I make it so that while the div is shifting upwards, the background image is simultaneously fading? $('div.designbox.orangehello').mouseenter(function() { $('div.designbox.orangehello').animate({ top: '-=10', }, 55, function() { $(this).addClass('hover'); }); }); $('div.designbox.orangehello').mouseleave(function() { $('div.designbox.orangehello').animate({ top: '+=10', }, 55, function() { $(this).removeClass('hover'); }); });

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• Rename image file on upload php

  - by blasteralfred

  Hi, I have a form which uploads and re sizes image. The html file file submits data to a php file. The script is as follows; Index.html <form action="resizer.php" method="post" enctype="multipart/form-data"> Image: <input type="file" name="file" /> <input type="submit" name="submit" value="upload" /> </form> Resizer.php <?php require_once('imageresizer.class.php'); $imagename = "myimagename"; //Path To Upload Directory $dirpath = "uploaded/"; //MAX WIDTH AND HEIGHT OF IMAGE $max_height = 100; $max_width = 100; //Create Image Control Object - Parameters(file name, file tmp name, file type, directory path) $resizer = new ImageResizer($_FILES['file']['name'],$_FILES['file']['tmp_name'],$dirpath); //RESIZE IMAGE - Parameteres(max height, max width) $resizer->resizeImage($max_height,$max_width); //Display Image $resizer->showResizedImage(); ?> imageresizer.class.php <?php class ImageResizer{ public $file_name; public $tmp_name; public $dir_path; //Set variables public function __construct($file_name,$tmp_name,$dir_path){ $this->file_name = $file_name; $this->tmp_name = $tmp_name; $this->dir_path = $dir_path; $this->getImageInfo(); $this->moveImage(); } //Move the uploaded image to the new directory and rename public function moveImage(){ if(!is_dir($this->dir_path)){ mkdir($this->dir_path,0777,true); } if(move_uploaded_file($this->tmp_name,$this->dir_path.'_'.$this->file_name)){ $this->setFileName($this->dir_path.'_'.$this->file_name); } } //Define the new filename public function setFileName($file_name){ $this->file_name = $file_name; return $this->file_name; } //Resize the image function with new max height and width public function resizeImage($max_height,$max_width){ $this->max_height = $max_height; $this->max_width = $max_width; if($this->height > $this->width){ $ratio = $this->height / $this->max_height; $new_height = $this->max_height; $new_width = ($this->width / $ratio); } elseif($this->height < $this->width){ $ratio = ($this->width / $this->max_width); $new_width = $this->max_width; $new_height = ($this->height / $ratio); } else{ $new_width = $this->max_width; $new_height = $this->max_height; } $thumb = imagecreatetruecolor($new_width, $new_height); switch($this->file_type){ case 1: $image = imagecreatefromgif($this->file_name); break; case 2: $image = imagecreatefromjpeg($this->file_name); break; case 3: $image = imagecreatefrompng($this->file_name); break; case 4: $image = imagecreatefromwbmp($this->file_name); } imagecopyresampled($thumb, $image, 0, 0, 0, 0, $new_width, $new_height, $this->width, $this->height); switch($this->file_type){ case 1: imagegif($thumb,$this->file_name); break; case 2: imagejpeg($thumb,$this->file_name,100); break; case 3: imagepng($thumb,$this->file_name,0); break; case 4: imagewbmp($thumb,$this->file_name); } imagedestroy($image); imagedestroy($thumb); } public function getImageInfo(){ list($width, $height, $type) = getimagesize($this->tmp_name); $this->width = $width; $this->height = $height; $this->file_type = $type; } public function showResizedImage(){ echo "<img src='".$this->file_name." />"; } public function onSuccess(){ header("location: index.php"); } } ?> Everything is working well. The image will be uploaded in it's original filename and extension with a "_" prefix. But i want to rename the image to "myimagename" on upload, which is a variable in "Resizer.php". How can i make this possible?? Thanks in advance :) blasteralfred

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• How do I set YUI2 paginator to select a page other than the first page?

  - by Jeremy Weathers

  I have a YUI DataTable (YUI 2.8.0r4) with AJAX pagination. Each row in the table links to a details/editing page and I want to link from that details page back to the list page that includes the record from the details page. So I have to a) offset the AJAX data correctly and b) tell YAHOO.widget.Paginator which page to select. According to my reading of the YUI API docs, I have to pass in the initialPage configuration option. I've attempted this, but it doesn't take (the data from AJAX is correctly offset, but the paginator thinks I'm on page 1, so clicking "next" takes me from e.g. page 6 to page 2. What am I not doing (or doing wrong)? Here's my DataTable building code: (function() { var columns = [ {key: "retailer", label: "Retailer", sortable: false, width: 80}, {key: "publisher", label: "Publisher", sortable: false, width: 300}, {key: "description", label: "Description", sortable: false, width: 300} ]; var source = new YAHOO.util.DataSource("/sales_data.json?"); source.responseType = YAHOO.util.DataSource.TYPE_JSON; source.responseSchema = { resultsList: "records", fields: [ {key: "url"}, {key: "retailer"}, {key: "publisher"}, {key: "description"} ], metaFields: { totalRecords: "totalRecords" } }; var LoadingDT = function(div, cols, src, opts) { LoadingDT.superclass.constructor.call( this, div, cols, src, opts); // hide the message tbody this._elMsgTbody.style.display = "none"; }; YAHOO.extend(LoadingDT, YAHOO.widget.DataTable, { showTableMessage: function(msg) { $('sales_table_overlay').clonePosition($('sales_table').down('table')). show(); }, hideTableMessage: function() { $('sales_table_overlay').hide(); } }); var table = new LoadingDT("sales_table", columns, source, { initialRequest: "startIndex=125&results=25", dynamicData: true, paginator: new YAHOO.widget.Paginator({rowsPerPage: 25, initialPage: 6}) }); table.handleDataReturnPayload = function(oRequest, oResponse, oPayload) { oPayload.totalRecords = oResponse.meta.totalRecords; return oPayload; }; })();

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• Trouble with loading jquery onload.

  - by Darcy

  Hi guys, I'm trying to build some jquery tabs based on the request (which is stored in a table). I have two pages sharing one .js file. One page is for the user to create the request, and the other is for the administrator to approve/deny the request. On the admin page, here is my javascript code: $(function() { GetRequest(); }); Which is just calling a function I have inside my .js file. All the code in the .js file is also wrapped in a '$(function(){ //...code here })'. The problem is the function isn't built yet when calling it from the page. Is there a way I can tell the page to wait until the script is complete?

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• Problem in creating different types of columns in a Winforms gridview

  - by Royson

  My windows form application has a grid view control with filename as a default column. User should create a column of following types Text, Number, Currency, Combo Box, Check Box, Radio Button ,Date time type (should display DateTimePicker control) and Hyper Link type. After that i want to pass all rows to next screen for further processing. We can create a column of these types in a grid view but how can i store it in a data table so that i can pass it to next screen. Or should i create a column in a data table and then assign data table to grid view by gridview.DataSource = dt; but can we create a these types of columns in a data table.

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• JavaScript private methods

  - by Wayne Kao

  To make a JavaScript class with a public method I'd do something like: function Restaurant() { } Restaurant.prototype.buy_food = function() { // something here } Restaurant.prototype.use_restroom = function() { // something here } That way users of my class can: var restaurant = new Restaurant(); restaurant.buy_food(); restaurant.use_restroom(); How do I create a private method that my public buy_food and use_restroom methods can call but that users of the class can't call externally. In other words, I want my method implementation to be able to do: Restaurant.prototype.use_restroom = function() { this.private_stuff(); } But this shouldn't work: var r = new Restaurant(); r.private_stuff(); How do I define private_stuff as a private method so both of those hold true? I've read Doug Crockford's writeup a few times but it doesn't seem like "private" methods can be called by public methods and "privileged" methods can be called externally.

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• fetching rows from mysql table and displaying them as JGROWL notifications

  - by jeansymolanza

  hey guys, i am having problems implementing my php/mysql code into a jgrowl if you are familiar with jgrowl you will know it delivers notifications like Growl does for OS X i am trying to get it read all the records from my table but at the moment it is only displaying one record as a notification and it loops through it 4 times another problem is that if i have 5 rows in the table then jgrowl will only display 4 notifications are going to be viewed how do i get it to view all the records in the table as notifications and how do i display the total number of records (5) as notifications and account for the missing one at the moment thanking you guys in advance... God bless <script type="text/javascript"> // In case you don't have firebug... if (!window.console || !console.firebug) { var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"]; window.console = {}; for (var i = 0; i < names.length; ++i) window.console[names[i]] = function() {}; } (function($){ $(document).ready(function(){ // This specifies how many messages can be pooled out at any given time. // If there are more notifications raised then the pool, the others are // placed into queue and rendered after the other have disapeared. $.jGrowl.defaults.pool = 5; var i = 1; var y = 1; setInterval( function() { if ( i < <?php echo $totalRows_comment; ?> ) { <?php echo '$.jGrowl("'.$row_comment['comment'].'",'; ?> { sticky: true, log: function() { console.log("Creating message " + i + "..."); }, beforeOpen: function() { console.log("Rendering message " + y + "..."); y++; } }); } i++; } , 1000 ); }); })(jQuery); </script> <p> </span> <p>

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• Custom Collection Initializers

  - by Jake

  Classes that implement IEnumerable and provide a public void Add(/* args */) function can be initialized like in the following example: List<int> numbers = new List<int>{ 1, 2, 3 }; which calls the Add(int) function 3x after initializing the List<int>. Is there a way to define this behavior explicitly for my own classes? For example, could I have the initializer call a function other than the appropriate Add() overload?

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• mcrypt_decrypt return strange code

  - by Jin Yong

  I tried to encrypt an array then decrypt it back to string by calling a function, it's seem return the correct value if I does all encrypt and decrypt at once time in the function, however, if I return the encrypt value, then call the function again to decrypt it will return me some strange code. Exmaple: public main() { $dataArray = array("one"=>1, "two"=>2, "three"=>3); $a = $this->encryptDecryptInfo(json_encode($dataArray),$this->key); var_dump($a); } public function encryptDecryptInfo($text,$key) { $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, $text= base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_CFB, $iv)); return mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($text), MCRYPT_MODE_CFB, $iv); } This will return me the correct value which is string(27) "{"one":1,"two":2,"three":3}" Exmaple 2: public main() { $dataArray = array("one"=>1, "two"=>2, "three"=>3); $a = $this->encryptDecryptInfo(json_encode($dataArray),$this->key,"encrypt"); $b = $this->encryptDecryptInfo($a,$this->key,"decrypt"); var_dump($b); } public function encryptDecryptInfo($text,$key,$type) { $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_CFB), MCRYPT_RAND); if($type == "encrypt") return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_CFB, $iv)); else return mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($text), MCRYPT_MODE_CFB, $iv); } However if I do my code in this way, it will return me strange value which is like this string(27) "?ÔérôŸY éXgíœÈÐN*é౜CµÖ" .Deos anyone know why this is happen?

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• unexpected T_TRY, expecting T_FUNCTION error message, not sure why ?

  - by Rachel

  I am getting unexpected T_TRY, expecting T_FUNCTION error message and am not sure as too why am getting that, can't we use try and catch block inside class like this: class Processor { protected $dao; protected $fin; try { public function __construct($file) { //Open File for parsing. $this->fin = fopen($file,'w+') or die('Cannot open file'); // Initialize the Repository DAO. $this->dao = new Dao('some name'); } public function initiateInserts() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_inserts = $this->dao->initiateInserts($data); } } public function initiateCUpdates() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_updates = $this->dao->initiateCUpdates($data); } } public function initiateExecuteIUpdates() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_updates = $this->dao->initiateIUpdates($data); } } } catch (Exception $e) { } }

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• Coda Slider scroll effect. Click button and change panel.

  - by vatismarty

  <?php echo $javascript->link('jquery-easing-1.3.pack'); ?> <?php echo $javascript->link('jquery-easing-compatibility.1.2.pack'); ?> <?php echo $javascript->link('coda-slider.1.1.1.pack'); ?> <script type="text/javascript"> var theInt = null; var $crosslink, $navthumb; var curclicked = 0; theInterval = function(cur){ clearInterval(theInt); if( typeof cur != 'undefined' ) curclicked = cur; $crosslink.removeClass("active-thumb"); $navthumb.eq(curclicked).parent().addClass("active-thumb"); $(".stripNav ul li a").eq(curclicked).trigger('click'); theInt = setInterval(function(){ $crosslink.removeClass("active-thumb"); $navthumb.eq(curclicked).parent().addClass("active-thumb"); $(".stripNav ul li a").eq(curclicked).trigger('click'); curclicked++; if( 6 == curclicked ) curclicked = 0; }, 3000); }; $(function(){ $("#main-photo-slider").codaSlider(); $navthumb = $(".nav-thumb"); $crosslink = $(".cross-link"); $navthumb .click(function() { var $this = $(this); theInterval($this.parent().attr('href').slice(1) - 1); return false; }); theInterval(); $(".stripViewer").mouseover(function(e) { $(this).stop(); }); }); </script> The actual slider is in this page. PROBLEM : The slider does not work when i click on the 2, 3, and 4th buttons. 1st button shows weird behaviour. Please help me fix this bug. The slider should take me to panel 3 if i click button 3

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