Search Results

Search found 62701 results on 2509 pages for 'sql function'.

Page 2472/2509 | < Previous Page | 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479  | Next Page >

  • how can we change the value by using radio buttons

    - by magna
    I am making a website in Adobe Dreamweaver with php. In the site there’s a 3 buttons for selecting payment method that will act as the continue button. What I want is when the user checks a radio buttons (I agree button), it will be add with that amount and display with previous amount.. there is three buttons which has the corresponding values(amount in pounds).. plz check my website http://www.spsmobile.co.uk in this linkgo to mobile phone unlocking and after add the cart click make payment it will go to next page there is a delivery mail details.. for that delivery mail details only am asking.. here i mentioned code: <input id="radio-1" type="radio" name="rmr" value="1"> <label for="radio-1">£3</label> <input id="radio-2" type="radio" name="rmr" value="2"> <label for="radio-2">£5.5</label> <input id="radio-3" type="radio" name="rmr" value="4"> <label for="radio-3">£10</label> <div class="total-text" style="font-size:36px">£10</div> var total = parseInt($("div.total-text").text().substring(1), 10); $("input[name='rmr']").bind('change', function() { var amount = 0; switch (this.value) { case "1": amount = 3; break; case "2": amount = 5.5; break; case "4": amount = 10; break; } $("div.total-text").text("£" + (total + amount)); }); but there is no change , my previous amount did not add with that. while am clicking previous amount only displayed on browser.. i need when i cliks radio button the value should change correspondingly.. where i did that mistake...plz give me some idea and what should i do..is there any need for storing db.. thanks in adv

    Read the article

  • Passing ViewModel for backbone.js from MVC3 Server-Side

    - by Roman
    In ASP.NET MVC there is Model, View and Controller. MODEL represents entities which are stored in database and essentially is all the data used in a application (for example, generated by EntityFramework, "DB First" approach). Not all data from model you want to show in the view (for example, hashs of passwords). So you create VIEW MODEL, each for every strongly-typed-razor-view you have in application. Like this: using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace MyProject.ViewModels.SomeController.SomeAction { public class ViewModel { public ViewModel() { Entities1 = new List<ViewEntity1>(); Entities2 = new List<ViewEntity2>(); } public List<ViewEntity1> Entities1 { get; set; } public List<ViewEntity2> Entities2 { get; set; } } public class ViewEntity1 { //some properties from original DB-entity you want to show } public class ViewEntity2 { } } When you create complex client-side interfaces (I do), you use some pattern for javascript on client, MVC or MVVM (I know only these). So, with MVC on client you have another model (Backbone.Model for example), which is third model in application. It is a bit much. Why don`t we use the same ViewModel model on a client (in backbone.js or another framework)? Is there a way to transfer CS-coded model to JS-coded? Like in MVVM pattern, with knockout.js, when you can do like this: in SomeAction.cshtml: <div style="display: none;" id="view_model">@Json.Encode(Model)</div> after that in Javascript-code var ViewModel = ko.mapping.fromJSON($("#view_model").get(0).innerHTML); now you can extend your ViewModel with some actions, event handlers, etc: ko.utils.extend(ViewModel, { some_function: function () { //some code } }); So, we are not building the same view model on the client again, we are transferring existing view model from server. At least, data. But knockout.js is not suitable for me, you can`t build complex UI with it, it is just data-binding. I need something more structural, like backbone.js. The only way to build ViewModel for backbone.js I can see now is re-writing same ViewModel in JS from server with hands. Is there any ways to transfer it from server? To reuse the same viewmodel on server view and client view?

    Read the article

  • pagination in php error

    - by fusion
    i've implemented this pagination class for my webpage in a separate file called class.pagination.php, but when i execute the page, nothing happens. it just displays a blank page. this is my search.php file, where i'm calling this class: <?php include 'config.php'; require ('class.pagination.php'); $search_result = ""; $search_result = $_GET["q"]; $search_result = trim($search_result); //Check if the string is empty if ($search_result == "") { echo "<p class='error'>Search Error. Please Enter Your Search Query.</p>" ; exit(); } //search query for multiple keywords if(!empty($search_result)) { // the table to search $table = "thquotes"; // explode search words into an array $arraySearch = explode(" ", $search_result); // table fields to search $arrayFields = array(0 => "cQuotes"); $countSearch = count($arraySearch); $a = 0; $b = 0; $query = "SELECT cQuotes, vAuthor, cArabic, vReference FROM ".$table." WHERE ("; $countFields = count($arrayFields); while ($a < $countFields) { while ($b < $countSearch) { $query = $query."$arrayFields[$a] LIKE '%$arraySearch[$b]%'"; $b++; if ($b < $countSearch) { $query = $query." AND "; } } $b = 0; $a++; if ($a < $countFields) { $query = $query.") OR ("; } } $query = $query.")"; $result = mysql_query($query, $conn) or die ('Error: '.mysql_error()); $totalrows = mysql_num_rows($result); if($totalrows < 1) { echo '<span class="error2">No matches found for "'.$search_result.'"</span>'; } else { ?> <div class="caption">Search Results</div> <div class="center_div"> <table> <?php while ($row= mysql_fetch_array($result, MYSQL_ASSOC)) { $cQuote = highlightWords(htmlspecialchars($row['cQuotes']), $search_result); ?> <tr> <td style="text-align:right; font-size:15px;"><?php h($row['cArabic']); ?></td> <td style="font-size:16px;"><?php echo $cQuote; ?></td> <td style="font-size:12px;"><?php h($row['vAuthor']); ?></td> <td style="font-size:12px; font-style:italic; text-align:right;"><?php h($row['vReference']); ?></td> </tr> <?php } ?> </table> </div> <?php } } else { exit(); } //Setting Pagination $pagination = new pagination(); $pagination->byPage = 5; $pagination->rows = $totalrows; // number of records in a table-back mysql_num_rows () instance or another, you have to play $from = $pagination->fromPagination(); // sql used for applications such LIMIT $ from, $ pagination-> byPage $pages = $pagination->pages(); if(isset($pages)) {?> <div class="pagination"> <?foreach ($pages as $key){?> <?if($key['current'] == 1) {?> <a href="?p=<?=$key['p']?>" class="active"><?=$key['page']?></a> <?} else {?> <a href="?p=<?=$key['p']?>" class="inactive"><?=$key['page']?></a> <?}?> <?}?> </div> <?} //End Pagination ?>

    Read the article

  • Jscrollpane causese text to disappear on internet explorer

    - by Crippletoe
    Hello all, in my current site, i am using the new Jscrollpane in order to generate a scrollbar for a menu (not my descision but the designer's descision so i dont wanna get into how 90's that all looks like..). my menu is based on a <UL> the <li> elements inside it have the attribute "text-align: right;". my problem that on IE alone the menu text doesnt show when i apply the ScrollPane to the menu. when i delete the ScrollPane function from my code- the menu re-appears. i checked the page with "microsoft Expression" DOM inspector in order to examine how IE sees my code and i can see the <li> elements there, only the text inside them is missing. when i disable the "text-align: right;" for the <li> in my CSS, the text shows again. i suspect this has something to do with the jScrollPane's containing which is relatively aligned but i cannot be sure.. can anyone suggest some fix for this problem? a link to a page where you can see the problem is here: http://kaplanoland.com/index.php?option=com_content&view=article&id=2&Itemid=12 the problematic menu is on the right side of the page. on every browser but IE you can see the text. only on IE not. my CSS code for that menu (not including the jScrollPane CSS) is here: div#menu2{ position: absolute; top: 123px; right: 36px; width: 330px; height: 150px; } div#menu2_scroll{ /*the actual scroller*/ height: 150px; } div#menu2 div#menu2_contain{ } div#menu2 li{ text-align: right; } div#menu2 li span{ line-height: 18px; } div#menu2 a:link, div#menu2 a:visited{ color: #808285 ; font-family: Arial, Helvetica, sans-serif ; font-size: 12px ; } div#menu2 a:hover, div#menu2 li#current a{ color: #000000 ; font-family: Arial, Helvetica, sans-serif ; font-size: 12px ; } div#menu2 span.separator{ display: block; padding-top: 12px; padding-bottom: 40px; font-family: Arial, Helvetica, sans-serif; font-size: 12px; font-weight: bold; color: #000000; } div#menu2 span.separator span { padding-top: 12px; border-top-width: 1px; border-top-style: solid; border-top-color: #808285; } thank you all so much.

    Read the article

  • JQuery Validation - Wrap offending field in a div.

    - by Samuurai
    Hi, It's my first time using StackOverFlow and first time trying to set up jQuery Validation. It's displaying <label> tags with the error messages as default behaviour, however the way my CSS is set up I need a div to wrap around the offending element and a message display in <p> tags. Without errors, my html looks like this: <div class="grid-26 append-2"> <p class="noMarginBottom"> <label>First Name</label> <div class="jNiceInputWrapper"> <div class="jNiceInputInner"> <input type="text" class="text jNiceInput" name="name"/> </div> </div> </p> <span class="clear"/> </div> And with Errors, it needs to look like this - Note the div with class "error" and the <p> tag. <div class="grid-26 append-2"> <div class="error"> <p>Please write your real name</p> <p class="noMarginBottom"> <label>First Name</label> <div class="jNiceInputWrapper"> <div class="jNiceInputInner"> <input type="text" class="text jNiceInput" name="name"/> </div> </div> </p> <span class="clear"/> </div> </div> My Validation code is very basic. $(document).ready(function(){ $("#contact_form").validate({ rules:{ name: { required: true } } }); }); This is my first venture into jQuery and form validation, so I'll be the first to say "I'm lost!" any help would be greatly appreciated. Thanks.

    Read the article

  • Vector iterators in for loops, return statements, warning, c++

    - by Crystal
    Had 3 questions regarding a hw assignment for C++. The goal was to create a simple palindrome method. Here is my template for that: #ifndef PALINDROME_H #define PALINDROME_H #include <vector> #include <iostream> #include <cmath> template <class T> static bool palindrome(const std::vector<T> &input) { std::vector<T>::const_iterator it = input.begin(); std::vector<T>::const_reverse_iterator rit = input.rbegin(); for (int i = 0; i < input.size()/2; i++, it++, rit++) { if (!(*it == *rit)) { return false; } } return true; } template <class T> static void showVector(const std::vector<T> &input) { for (std::vector<T>::const_iterator it = input.begin(); it != input.end(); it++) { std::cout << *it << " "; } } #endif Regarding the above code, can you have more than one iterator declared in the first part of the for loop? I tried defining both the "it" and "rit" in the palindrome() method, and I kept on getting an error about needing a "," before rit. But when I cut and paste outside the for loop, no errors from the compiler. (I'm using VS 2008). Second question, I pretty much just brain farted on this one. But is the way I have my return statements in the palindrome() method ok? In my head, I think it works like, once the *it and *rit do not equal each other, then the function returns false, and the method exits at this point. Otherwise if it goes all the way through the for loop, then it returns true at the end. I totally brain farted on how return statements work in if blocks and I tried looking up a good example in my book and I couldn't find one. Finally, I get this warnings: \palindrome.h(14) : warning C4018: '<' : signed/unsigned mismatch Now is that because I run my for loop until (i < input.size()/2) and the compiler is telling me that input can be negative? Thanks!

    Read the article

  • ZF Autoloader to load ancestor and requested class

    - by Pekka
    I am integrating Zend Framework into an existing application. I want to switch the application over to Zend's autoloading mechanism to replace dozens of include() statements. I have a specific requirement for the autoloading mechanism, though. Allow me to elaborate. The existing application uses a core library (independent from ZF), for example: /Core/Library/authentication.php /Core/Library/translation.php /Core/Library/messages.php this core library is to remain untouched at all times and serves a number of applications. The library contains classes like class ancestor_authentication { ... } class ancestor_translation { ... } class ancestor_messages { ... } in the application, there is also a Library directory: /App/Library/authentication.php /App/Library/translation.php /App/Library/messages.php these includes extend the ancestor classes and are the ones that actually get instantiated in the application. class authentication extends ancestor_authentication { } class translation extends ancestor_translation { } class messages extends ancestor_messages { } usually, these class definitions are empty. They simply extend their ancestors and provide the class name to instantiate. $authentication = new authentication(); The purpose of this solution is to be able to easily customize aspects of the application without having to patch the core libraries. Now, the autoloader I need would have to be aware of this structure. When an object of the class authentication is requested, the autoloader would have to: 1. load /Core/Library/authentication.php 2. load /App/Library/authentication.php My current approach would be creating a custom function, and binding that to Zend_Loader_Autoloader for a specific namespace prefix. Is there already a way to do this in Zend that I am overlooking? The accepted answer in this question kind of implies there is, but that may be just a bad choice of wording. Are there extensions to the Zend Autoloader that do this? Can you - I am new to ZF - think of an elegant way, conforming with the spirit of the framework, of extending the Autoloader with this functionality? I'm not necessary looking for a ready-made implementation, some pointers (This should be an extension to the xyz method that you would call like this...) would already be enough.

    Read the article

  • Calling CryptUIWizDigitalSign from .NET on x64

    - by Joe Kuemerle
    I am trying to digitally sign files using the CryptUIWizDigitalSign function from a .NET 2.0 application compiled to AnyCPU. The call works fine when running on x86 but fails on x64, it also works on an x64 OS when compiled to x86. Any idea on how to better marshall or call from x64? The Win32exception returned is "Error encountered during digital signing of the file ..." with a native error code of -2146762749. The relevant portion of the code are: [StructLayout(LayoutKind.Sequential)] public struct CRYPTUI_WIZ_DIGITAL_SIGN_INFO { public Int32 dwSize; public Int32 dwSubjectChoice; [MarshalAs(UnmanagedType.LPWStr)] public string pwszFileName; public Int32 dwSigningCertChoice; public IntPtr pSigningCertContext; [MarshalAs(UnmanagedType.LPWStr)] public string pwszTimestampURL; public Int32 dwAdditionalCertChoice; public IntPtr pSignExtInfo; } [DllImport("Cryptui.dll", CharSet=CharSet.Unicode, SetLastError=true)] public static extern bool CryptUIWizDigitalSign(int dwFlags, IntPtr hwndParent, string pwszWizardTitle, ref CRYPTUI_WIZ_DIGITAL_SIGN_INFO pDigitalSignInfo, ref IntPtr ppSignContext); CRYPTUI_WIZ_DIGITAL_SIGN_INFO digitalSignInfo = new CRYPTUI_WIZ_DIGITAL_SIGN_INFO(); digitalSignInfo = new CRYPTUI_WIZ_DIGITAL_SIGN_INFO(); digitalSignInfo.dwSize = Marshal.SizeOf(digitalSignInfo); digitalSignInfo.dwSubjectChoice = 1; digitalSignInfo.dwSigningCertChoice = 1; digitalSignInfo.pSigningCertContext = pSigningCertContext; digitalSignInfo.pwszTimestampURL = timestampUrl; digitalSignInfo.dwAdditionalCertChoice = 0; digitalSignInfo.pSignExtInfo = IntPtr.Zero; digitalSignInfo.pwszFileName = filepath; CryptUIWizDigitalSign(1, IntPtr.Zero, null, ref digitalSignInfo, ref pSignContext)); And here is how the SigningCertContext is retrieved (minus various error handling) public IntPtr GetCertContext(String pfxfilename, String pswd) IntPtr hMemStore = IntPtr.Zero; IntPtr hCertCntxt = IntPtr.Zero; IntPtr pProvInfo = IntPtr.Zero; uint provinfosize = 0; try { byte[] pfxdata = PfxUtility.GetFileBytes(pfxfilename); CRYPT_DATA_BLOB ppfx = new CRYPT_DATA_BLOB(); ppfx.cbData = pfxdata.Length; ppfx.pbData = Marshal.AllocHGlobal(pfxdata.Length); Marshal.Copy(pfxdata, 0, ppfx.pbData, pfxdata.Length); hMemStore = Win32.PFXImportCertStore(ref ppfx, pswd, CRYPT_USER_KEYSET); pswd = null; if (hMemStore != IntPtr.Zero) { Marshal.FreeHGlobal(ppfx.pbData); while ((hCertCntxt = Win32.CertEnumCertificatesInStore(hMemStore, hCertCntxt)) != IntPtr.Zero) { if (Win32.CertGetCertificateContextProperty(hCertCntxt, CERT_KEY_PROV_INFO_PROP_ID, IntPtr.Zero, ref provinfosize)) pProvInfo = Marshal.AllocHGlobal((int)provinfosize); else continue; if (Win32.CertGetCertificateContextProperty(hCertCntxt, CERT_KEY_PROV_INFO_PROP_ID, pProvInfo, ref provinfosize)) break; } } finally { if (pProvInfo != IntPtr.Zero) Marshal.FreeHGlobal(pProvInfo); if (hMemStore != IntPtr.Zero) Win32.CertCloseStore(hMemStore, 0); } return hCertCntxt; }

    Read the article

  • Wordpress Search Results in Order

    - by Brad Houston
    One of my clients websites, www.kevinsplants.co.uk is not showing the search results in alphabetical order, how do I go about ordering the results in alphabetical order? We are using the Shopp plugin and I believe its that plugin that is generating the results! Cheers, Brad case "orderby-list": if (isset($Shopp->Category->controls)) return false; if (isset($Shopp->Category->smart)) return false; $menuoptions = Category::sortoptions(); $title = ""; $string = ""; $default = $Shopp->Settings->get('default_product_order'); if (empty($default)) $default = "title"; if (isset($options['default'])) $default = $options['default']; if (isset($options['title'])) $title = $options['title']; if (value_is_true($options['dropdown'])) { if (isset($Shopp->Cart->data->Category['orderby'])) $default = $Shopp->Cart->data->Category['orderby']; $string .= $title; $string .= '<form action="'.esc_url($_SERVER['REQUEST_URI']).'" method="get" id="shopp-'.$Shopp->Category->slug.'-orderby-menu">'; if (!SHOPP_PERMALINKS) { foreach ($_GET as $key => $value) if ($key != 'shopp_orderby') $string .= '<input type="hidden" name="'.$key.'" value="'.$value.'" />'; } $string .= '<select name="shopp_orderby" class="shopp-orderby-menu">'; $string .= menuoptions($menuoptions,$default,true); $string .= '</select>'; $string .= '</form>'; $string .= '<script type="text/javascript">'; $string .= "jQuery('#shopp-".$Shopp->Category->slug."-orderby-menu select.shopp-orderby-menu').change(function () { this.form.submit(); });"; $string .= '</script>'; } else { if (strpos($_SERVER['REQUEST_URI'],"?") !== false) list($link,$query) = explode("\?",$_SERVER['REQUEST_URI']); $query = $_GET; unset($query['shopp_orderby']); $query = http_build_query($query); if (!empty($query)) $query .= '&'; foreach($menuoptions as $value => $option) { $label = $option; $href = esc_url($link.'?'.$query.'shopp_orderby='.$value); $string .= '<li><a href="'.$href.'">'.$label.'</a></li>'; } } return $string; break;

    Read the article

  • How can I represent a line of music notes in a way that allows fast insertion at any index?

    - by chairbender
    For "fun", and to learn functional programming, I'm developing a program in Clojure that does algorithmic composition using ideas from this theory of music called "Westergaardian Theory". It generates lines of music (where a line is just a single staff consisting of a sequence of notes, each with pitches and durations). It basically works like this: Start with a line consisting of three notes (the specifics of how these are chosen are not important). Randomly perform one of several "operations" on this line. The operation picks randomly from all pairs of adjacent notes that meet a certain criteria (for each pair, the criteria only depends on the pair and is independent of the other notes in the line). It inserts 1 or several notes (depending on the operation) between the chosen pair. Each operation has its own unique criteria. Continue randomly performing these operations on the line until the line is the desired length. The issue I've run into is that my implementation of this is quite slow, and I suspect it could be made faster. I'm new to Clojure and functional programming in general (though I'm experienced with OO), so I'm hoping someone with more experience can point out if I'm not thinking in a functional paradigm or missing out on some FP technique. My current implementation is that each line is a vector containing maps. Each map has a :note and a :dur. :note's value is a keyword representing a musical note like :A4 or :C#3. :dur's value is a fraction, representing the duration of the note (1 is a whole note, 1/4 is a quarter note, etc...). So, for example, a line representing the C major scale starting on C3 would look like this: [ {:note :C3 :dur 1} {:note :D3 :dur 1} {:note :E3 :dur 1} {:note :F3 :dur 1} {:note :G3 :dur 1} {:note :A4 :dur 1} {:note :B4 :dur 1} ] This is a problematic representation because there's not really a quick way to insert into an arbitrary index of a vector. But insertion is the most frequently performed operation on these lines. My current terrible function for inserting notes into a line basically splits the vector using subvec at the point of insertion, uses conj to join the first part + notes + last part, then uses flatten and vec to make them all be in a one-dimensional vector. For example if I want to insert C3 and D3 into the the C major scale at index 3 (where the F3 is), it would do this (I'll use the note name in place of the :note and :dur maps): (conj [C3 D3 E3] [C3 D3] [F3 G3 A4 B4]), which creates [C3 D3 E3 [C3 D3] [F3 G3 A4 B4]] (vec (flatten previous-vector)) which gives [C3 D3 E3 C3 D3 F3 G3 A4 B4] The run time of that is O(n), AFAIK. I'm looking for a way to make this insertion faster. I've searched for information on Clojure data structures that have fast insertion but haven't found anything that would work. I found "finger trees" but they only allow fast insertion at the start or end of the list. Edit: I split this into two questions. The other part is here.

    Read the article

  • Using images in QListWidget, is this possible?

    - by Neko
    Hi, again. :) As with the last few times I posted here, I have a question about QT, which I am using to create a chat messenger client. To display the list of online users, I'm using a QListWidget, as created like this: listWidget = new QListWidget(horizontalLayoutWidget); listWidget->setObjectName("userList"); QSizePolicy sizePolicy1(QSizePolicy::Preferred, QSizePolicy::Expanding); sizePolicy1.setHorizontalStretch(0); sizePolicy1.setVerticalStretch(0); sizePolicy1.setHeightForWidth(listWidget->sizePolicy().hasHeightForWidth()); listWidget->setSizePolicy(sizePolicy1); listWidget->setMinimumSize(QSize(30, 0)); listWidget->setMaximumSize(QSize(150, 16777215)); listWidget->setBaseSize(QSize(100, 0)); listWidget->setContextMenuPolicy(Qt::CustomContextMenu); Users are shown by constantly refreshing the list, like this: (Note: There are different channels, with different userlists, so refreshing it is the most efficient thing to do, as far as I know.) void FMessenger::refreshUserlist() { if (currentPanel == 0) return; listWidget = this->findChild<QListWidget *>(QString("userList")); listWidget->clear(); QList<FCharacter*> charList = currentPanel->charList(); QListWidgetItem* charitem = 0; FCharacter* character; foreach(character, charList) { charitem = new QListWidgetItem(character->name()); // charitem->setIcon(QIcon(":/Images/status.png")); listWidget->addItem(charitem); } } This has always worked perfectly. The line that I commented out is the one I have problems with: my current goal is to be able to display a user's online status with an image, which represents whether they are busy, away, available, etc. Using setIcon() does absolutely nothing though, apparently; the items still show up as they used to, without icons. I'm aware that this is probably not the way this function needs to be used, but I have found little documentation about it online, and absolutely no useful examples of implementations. My question is, can anybody help me with fixing this problem? Any help would be appreciated terrifically, like always!

    Read the article

  • How to Automatically Refresh Data on Page Using Ajax on an Interval?

    - by Karnak
    I would like to load an XML file every 30 seconds and display its contents inside an HTML page. So far I know how to load the file, but I don't know how to automatically refresh it and display its updated contents. It would also be great if it did some error checking and if it displayed error.png image when it's not able to load data.xml file. Here is my code: <head> <script> window.XMLHttpRequest { xmlhttp = new XMLHttpRequest(); } xmlhttp.open("GET", "data.xml", false); xmlhttp.send(); loadXMLDoc = xmlhttp.responseXML; f = loadXMLDoc.getElementsByTagName("foo") function buildBar(i) { qux = (f[i].getElementsByTagName("qux")[0].childNodes[0].nodeValue); document.getElementById("displayBar").innerHTML = qux; } </script> </head> <body> <script> document.write("<ul>"); for (var i = 0; i < f.length; i++) { document.write("<li onclick='buildBar(" + i + ")'>"); document.write(f[i].getElementsByTagName("bar")[0].childNodes[0].nodeValue); document.write("</li>"); } document.write("</ul>"); </script> <div id="displayBar"> </div> </body> After searching the internet for a few hours I found many examples on how to do this, but I didn't know how to implement it in my particular case. I am not a programmer, so please be kind. I would really appriciate any help. It would mean a lot.

    Read the article

  • Facebook PHP SDK - can't pass parameters to getLoginUrl()

    - by Elliott
    I'm using the Facebook PHP SDK for simple login with extended permissions. I'm using the example code from the SDK docs, but I found that I need to manually clear out the FB session data otherwise if($user) comes back as true even though the user is logged out. I have the app going to logout.php upon logout; this page clears out the session vars and redirects to the app home page. Once I clear out the FB session data, log in/log out works fine. However, it stops working if I pass $params to the getLoginUrl function. Once I pass any params (I've tried several), the login breaks, either by not bringing up the second extended permissions screen or by refreshing the app page w/out login success. index page and logout page code follow. index.php <?php require 'services/facebook-php-sdk/src/facebook.php'; $facebook = new Facebook(array( 'appId' => '[APP_ID]', 'secret' => '[SECRET]', )); // Get User ID $user = $facebook->getUser(); if($user) { try { // Proceed knowing you have a logged in user who's authenticated. $user_profile = $facebook->api('/me'); $params = array('next' => 'http://'.$_SERVER["SERVER_NAME"].'/logout.php'); $logout_url = $facebook->getLogoutUrl($params); } catch (FacebookApiException $e) { error_log($e); $user = null; } } else { $login_url = $facebook->getLoginUrl($params = array('redirect_uri' => 'http://'.$_SERVER["SERVER_NAME"].'/', 'scope' => 'read_stream')); } ?> <!DOCTYPE html> <html lang="en"> <head> </head> <body> <?php if($user) { ?> <p><a href="<?php echo($logout_url); ?>">Log out</a></p> <?php } else { ?> <p><a href="<?php echo($login_url); ?>">Log in</a></p> <?php } ?> </body> </html> logout.php <?php session_start(); $fb_app_id = '[APP_ID]'; unset($_SESSION['fb_'.$fb_app_id.'_code']); unset($_SESSION['fb_'.$fb_app_id.'_access_token']); unset($_SESSION['fb_'.$fb_app_id.'_user_id']); unset($_SESSION['fb_'.$fb_app_id.'_state']); header('Location: http://'.$_SERVER["SERVER_NAME"].'/'); ?>

    Read the article

  • Structures not working correctly?

    - by booby
    Fraction AddFractions(const Fraction& frac1, const Fraction& frac2) { Fraction frac3; if (frac1.denom == frac2.denom) { frac3.num = frac1.num + frac2.num; frac3.denom = frac1.denom; } else { frac3.denom = (frac1.denom * frac2.denom); frac3.num = (frac1.num * frac2.denom) + (frac2.num * frac1.denom); } return frac3; } This is my prototype and there is a structure defined as Fraction with int num and int denom when I call the function it just gives me back garbage? I don't know what's wrong with it. Please help. =( cout << "Please enter two Fractions" << endl; cout << endl; GetFraction(frac1); cout << "Your fisrt fraction is: "; PrintFraction(frac1); cout << endl; cout << endl; GetFraction(frac2); cout << "Your second fraction is: "; PrintFraction(frac2); cout << endl; do { choice1 = MathMenu(); if (choice1 == ErrorOpt) { cout << "There was an error with what you have entered" << endl; } else if(choice1 != QuitOpt) { // do the math options switch (choice1) { case AddOpt: AddFractions(frac1, frac2); break; case SubtractOpt: SubtractFractions(frac1, frac2); break; case MultiplyOpt: MultiplyFractions(frac1, frac2); break; case DivideOpt: DivideFractions(frac1, frac2); break; } //print the results PrintFraction(frac1); PrintMathOption(choice1); PrintFraction(frac2); cout << " = "; Standardize(frac3); Reduce(frac3); PrintFraction(frac3); cout << endl; Pause();

    Read the article

  • Move an object in the direction of a bezier curve?

    - by Sent1nel
    I have an object with which I would like to make follow a bezier curve and am a little lost right now as to how to make it do that based on time rather than the points that make up the curve. .::Current System::. Each object in my scene graph is made from position, rotation and scale vectors. These vectors are used to form their corresponding matrices: scale, rotation and translation. Which are then multiplied in that order to form the local transform matrix. A world transform (Usually the identity matrix) is then multiplied against the local matrix transform. class CObject { public: // Local transform functions Matrix4f GetLocalTransform() const; void SetPosition(const Vector3f& pos); void SetRotation(const Vector3f& rot); void SetScale(const Vector3f& scale); // Local transform Matrix4f m_local; Vector3f m_localPostion; Vector3f m_localRotation; // rotation in degrees (xrot, yrot, zrot) Vector3f m_localScale; } Matrix4f CObject::GetLocalTransform() { Matrix4f out(Matrix4f::IDENTITY); Matrix4f scale(), rotation(), translation(); scale.SetScale(m_localScale); rotation.SetRotationDegrees(m_localRotation); translation.SetTranslation(m_localTranslation); out = scale * rotation * translation; } The big question I have are 1) How do I orientate my object to face the tangent of the Bezier curve? 2) How do I move that object along the curve without just setting objects position to that of a point on the bezier cuve? Heres an overview of the function thus far void CNodeControllerPieceWise::AnimateNode(CObject* pSpatial, double deltaTime) { // Get object latest pos. Vector3f posDelta = pSpatial->GetWorldTransform().GetTranslation(); // Get postion on curve Vector3f pos = curve.GetPosition(m_t); // Get tangent of curve Vector3f tangent = curve.GetFirstDerivative(m_t); } Edit: sorry its not very clear. I've been working on this for ages and its making my brain turn to mush. I want the object to be attached to the curve and face the direction of the curve. As for movement, I want to object to follow the curve based on the time this way it creates smooth movement throughout the curve.

    Read the article

  • Wordpress plugin $post

    - by Jordan Pagaduan
    I have already get how to insert in the database. My only problem is to get the value of text box to insert in the database. Here is my code: function dbAdd() { global $wpdb; $new_title = $_POST['new_title']; $new_author = $_POST['new_author']; $new_url = $_POST['new_url']; if($wpdb->insert('wp_podcast_data', array( 'mp3_id' => '', 'title' => '$new_title', 'creator' => '$new_author', 'url' => '$new_url') )) { echo"<h1>Save Successfully!</h1>"; }else { echo mysql_error(); } } ---------------------------------------------------------- function player_manager_index() { if($_SERVER['REQUEST_METHOD']=='POST') { dbAdd(); } ?> <h3>Podcast Player Manager (This Plug is not yet finish)</h3><br /> <p>Note: This Player Manager needs the URL of mp3 file that you want to include in your podcast player.</p> <form method="post" action=""> <label for="new_title" style="display:block; padding-top: 5px; cursor: default;">Title</label><input type="text" id="new_title" name="new_title" size="50" /> <label for="new_author" style="display:block; padding-top: 5px; cursor: default;">Author</label><input type="text" id="new_author" name="new_author" size="50" /> <label for="new_url" style="display:block; padding-top: 5px; cursor: default;">URL</label><input type="text" id="new_url" name="new_url" size="50" /> <div><input type="submit" value="Add New" style="margin-left: 20px; margin-top: 15px;" /></div> </form> Please Help me. I'm newbie in wordpress. Thank you so much.

    Read the article

  • C++: get const or non-const reference type from trait

    - by maciekp
    I am writing a functor F which takes function of type void (*func)(T) and func's argument arg. Then functor F calls func with arg. I would like F not to copy arg, just to pass it as reference. But then I cannot simply write "void F(void (*func)(T), T&)" because T could be a reference. So I am trying to write a trait, which allows to get proper reference type of T: T -> T& T& -> T& const T -> const T& const T& -> const T& I come up with something like this: template<typename T> struct type_op { typedef T& valid_ref_type; }; template<typename T> struct type_op<T&> { typedef typename type_op<T>::valid_ref_type valid_ref_type; }; template<typename T> struct type_op<const T> { typedef const T& valid_ref_type; }; template<typename T> struct type_op<const T&> { typedef const T& valid_ref_type; }; Which doesn't work for example for void a(int x) { std::cout << x << std::endl; } F(&a, 7); Giving error: invalid initialization of non-const reference of type ‘int&’ from a temporary of type ‘int’ in passing argument 2 of ‘void f(void (*)(T), typename type_op::valid_ref_type) [with T = int]’ How to get this trait to work?

    Read the article

  • Qt, can't display child widget

    - by Blin
    I have two widgets defined as follows class mainWindow : public QWidget { Q_OBJECT public: mainWindow(); void readConfig(); private: SWindow *config; QVector <QString> filePath; QVector <QLabel*> alias,procStatus; QVector <int> delay; QGridLayout *mainLayout; QVector<QPushButton*> stopButton,restartButton; QVector<QProcess*> proc; QSignalMapper *stateSignalMapper, *stopSignalMapper, *restartSignalMapper; public slots: void openSettings(); void startRunning(); void statusChange(int); void stopProc(int); void restartProc(int); void renew(); }; class SWindow : public QWidget { Q_OBJECT public: SWindow(QWidget *parent=0); void readConfig(); void addLine(int); private: QVector<QPushButton*> selectButton; QVector<QLabel*> filePath; QVector<QLineEdit*> alias; QSignalMapper *selectSignalMapper; QVector<QSpinBox*> delay; QGridLayout *mainLayout; public slots: void selectFile(int); void saveFile(); void addLineSlot(); }; when i create and display SWindow object from mainWindow like this void mainWindow::openSettings() { config = new SWindow(); config->show(); } everything is ok, but now i need to access the mainWindow from SWindow, and void mainWindow::openSettings() { config = new SWindow(this); config->show(); } doesn't display SWindow. How can i display SWindow? How do i call a function on widget close?

    Read the article

  • TestNG - Factories and Dataproviders

    - by Tim K
    Background Story I'm working at a software firm developing a test automation framework to replace our old spaghetti tangled system. Since our system requires a login for almost everything we do, I decided it would be best to use @BeforeMethod, @DataProvider, and @Factory to setup my tests. However, I've run into some issues. Sample Test Case Lets say the software system is a baseball team roster. We want to test to make sure a user can search for a team member by name. (Note: I'm aware that BeforeMethods don't run in any given order -- assume that's been taken care of for now.) @BeforeMethod public void setupSelenium() { // login with username & password // acknowledge announcements // navigate to search page } @Test(dataProvider="players") public void testSearch(String playerName, String searchTerm) { // search for "searchTerm" // browse through results // pass if we find playerName // fail (Didn't find the player) } This test case assumes the following: The user has already logged on (in a BeforeMethod, most likely) The user has already navigated to the search page (trivial, before method) The parameters to the test are associated with the aforementioned login The Problems So lets try and figure out how to handle the parameters for the test case. Idea #1 This method allows us to associate dataproviders with usernames, and lets us use multiple users for any specific test case! @Test(dataProvider="players") public void testSearch(String user, String pass, String name, String search) { // login with user/pass // acknowledge announcements // navigate to search page // ... } ...but there's lots of repetition, as we have to make EVERY function accept two extra parameters. Not to mention, we're also testing the acknowledge announcements feature, which we don't actually want to test. Idea #2 So lets use the factory to initialize things properly! class BaseTestCase { public BaseTestCase(String user, String password, Object[][] data); } class SomeTest { @Factory public void ... } With this, we end up having to write one factory per test case... Although, it does let us have multiple users per test-case. Conclusion I'm about fresh out of ideas. There was another idea I had where I was loading data from an XML file, and then calling the methods from a program... but its getting silly. Any ideas?

    Read the article

  • Zend Framework-where should this root.php file go for MVC?

    - by Joel
    Hi guys, I'm converting over a web-app to use the MVC structure of Zend Framework. I have a root.php include file that contains most of the database info, and some static variables that are used in the program. I'm not sure if some of this should be in the application.ini of in a model that is called by the init() function in a controller, or in the bootstrap or what? Any help would be much appreciated! root.php (include file at the top of every php page): <?php /*** //Configuration file */ ## Site Configuration starts ## define("SITE_ROOT" , dirname(__FILE__)); define("SITE_URL" , "http://localhost/monkeycalendarapp/monkeycalendarapp/public"); define('DB_HOST', "localhost"); define('DB_USER', "root"); define('DB_PASS', "xxx"); define('DB_NAME', "xxxxx"); define("PROJECT_NAME" , "Monkey Mind Manager (beta 2.2)"); //site title define("CALENDAR_WIDTH" , "300"); //left mini calendar width define("CALENDAR_HEIGHT" , "150"); //left mini calendar height $page_title = 'Event List'; $stylesheet_name = 'style.css'; //default stylesheet define("SITE_URL_AJAX" , SITE_URL . "/ajax-tooltip"); define("JQUERY" , SITE_URL . "/jquery-ui-1.7.2"); $a_times = array("12:00","12:30","01:00","01:30","02:00","02:30","03:00","03:30","04:00","04:30","05:00","05:30","06:00","06:30","07:00","07:30","08:00","08:30","09:00","09:30","10:00","10:30","11:00","11:30"); //PTLType Promotional timeline type $a_ptlType= array(1=>"Gigs","To-Do","Completed"); $a_days = array("Su","Mo","Tu","We","Th","Fr","Sa"); $a_timesMerd = array("12:00am","12:30am","01:00am","01:30am","02:00am","02:30am","03:00am","03:30am","04:00am","04:30am","05:00am","05:30am","06:00am","06:30am","07:00am","07:30am","08:00am","08:30am","09:00am","09:30am","10:00am","10:30am","11:00am","11:30am","12:00pm","12:30pm","01:00pm","01:30pm","02:00pm","02:30pm","03:00pm","03:30pm","04:00pm","04:30pm","05:00pm","05:30pm","06:00pm","06:30pm","07:00pm","07:30pm","08:00pm","08:30pm","09:00pm","09:30pm","10:00pm","10:30pm","11:00pm","11:30pm"); //Setting stylesheet for this user. $AMPM=array("am"=>"am","pm"=>"pm"); include(SITE_ROOT . "/includes/functions/general.php"); include(SITE_ROOT . "/includes/db.php"); session_start(); if(isset($_SESSION['userData']['UserID'])) { $s_userID = $_SESSION['userData']['UserID']; } $stylesheet_name = stylesheet(); ini_set('date.timezone', 'GMT'); date_default_timezone_set('GMT'); if($s_userID) { ini_set('date.timezone', $_SESSION['userData']['timezone']); date_default_timezone_set($_SESSION['userData']['timezone']); } ?>

    Read the article

  • TreeView Control unexpected event behavior

    - by ProgNet
    Hi all, In the MSDN is writen about TreeNode that: "By default, a node is in selection mode." "To put a node into selection mode, set the node's NavigateUrl property to an empty string." "When a node is in selection mode, use the SelectAction property to specify which event or events are raised when a node is selected." "Setting TreeNodeSelectAction value TreeNodeSelectAction.Select Raises the SelectedNodeChanged event when a node is selected." Please see TreeNode Here is the problem and possibly a bug in the control: When I set the TreeNode object PopulateOnDemand value to true and call the Collapse() function on that node. Then the TreeNodeExpanded event is raised in addition to the SelectedNodeChanged event. This is in complate contradiction to what is writen in the MSDN. According to the MSDN this sould happen only if TreeNodeSelectAction Property is set to TreeNodeSelectAction.SelectExpand value. Does some know whats the cause for that? Here is the code: <asp:TreeView ID="TreeView1" runat="server" AutoGenerateDataBindings="False" onselectednodechanged="TreeView1_SelectedNodeChanged" ontreenodepopulate="TreeView1_TreeNodePopulate"> </asp:TreeView> protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { string path = Server.MapPath("."); PopulateTopNodes(path); } } //MSDN : Occurs when a node with its PopulateOnDemand property set to true is expanded in //the TreeView control. protected void TreeView1_TreeNodePopulate(object sender, TreeNodeEventArgs e) { LoadChildNode(e.Node); } private void PopulateTopNodes(string pathToRootFolder) { DirectoryInfo dirInfo = new DirectoryInfo(pathToRootFolder); DirectoryInfo[] dirs = dirInfo.GetDirectories(); foreach (DirectoryInfo dir in dirs) { string relativePath = (dir.FullName).Replace(pathToRootFolderPrefix, ""); TreeNode folderNode = new TreeNode(dir.Name, relativePath); if (dir.GetDirectories().Length > 0) { folderNode.PopulateOnDemand = true; folderNode.Collapse(); } folderNode.NavigateUrl = ""; folderNode.SelectAction = TreeNodeSelectAction.SelectExpand; TreeView1.Nodes.Add(folderNode); } } private void LoadChildNode(TreeNode treeNode) { string d = treeNode.NavigateUrl; string action = treeNode.SelectAction.ToString(); string fullPath = Path.Combine(pathToRootFolderPrefix, treeNode.Value); DirectoryInfo dirInfo = new DirectoryInfo(fullPath); DirectoryInfo[] dirs = dirInfo.GetDirectories(); foreach (DirectoryInfo dir in dirs) { string relativePath = (dir.FullName).Replace(pathToRootFolderPrefix, ""); TreeNode folderNode = new TreeNode(dir.Name, relativePath); if(dir.GetDirectories().Length>0){ folderNode.PopulateOnDemand = true; folderNode.Collapse(); } folderNode.NavigateUrl = ""; folderNode.SelectAction = TreeNodeSelectAction.SelectExpand; treeNode.ChildNodes.Add(folderNode); } } //MSDN:Occurs when a node is selected in the TreeView control. protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e) { } Thanks

    Read the article

  • Global NSMutableArray doesn't seem to be holding values

    - by diatrevolo
    I have a Cocos2D iPhone application that requires a set of CGRects overlaid on an image to detect touches within them. "Data" below is a class that holds values parsed from an XML file. "delegateEntries" is a NSMutableArray that contains several "data" objects, pulled from another NSMutableArray called "entries" that lives in the application delegate. For some strange reason, I can get at these values without problems in the init function, but further down the class in question, I try to get at these values, and the application crashes without an error message (as an example, I put in the "ccTouchBegan" method which accessess this data through the "populateFieldsForTouchedItem" method. Can anyone see why these values would not be accessible from other methods? No objects get released until dealloc. Thanks in advance! @synthesize clicked, delegate, data, image, blurImage, normalImage, arrayOfRects, delegateEntries; - (id)initWithTexture:(CCTexture2D *)aTexture { if( (self=[super initWithTexture:aTexture] )) { arrayOfRects = [[NSMutableArray alloc] init]; delegateEntries = [[NSMutableArray alloc] init]; delegate = (InteractivePIAppDelegate *)[[UIApplication sharedApplication] delegate]; delegateEntries = [delegate entries]; data = [delegateEntries objectAtIndex:0]; NSLog(@"Assigning %@", [[delegateEntries objectAtIndex:0] backgroundImage]); NSLog(@"%@ is the string", [[data sections] objectAtIndex:0]); //CGRect rect; NSLog(@"Count of array is %i", [delegateEntries count]); //collect as many items as there are XML entries for(int i=0; i<[delegateEntries count]; i++) { if([[delegateEntries objectAtIndex:i] xPos]) { NSLog(@"Found %i items", i+1); [arrayOfRects addObject:[NSValue valueWithCGRect:CGRectMake([[[delegateEntries objectAtIndex:i] xPos] floatValue], [[[delegateEntries objectAtIndex:i] yPos] floatValue], [[[delegateEntries objectAtIndex:i] xBounds] floatValue], [[[delegateEntries objectAtIndex:i] yBounds] floatValue])]]; } else { NSLog(@"Nothing"); } } //remove the following once the NSMutableArray from above works (legacy) blurImage = [[NSString alloc] initWithString:[data backgroundBlur]]; NSLog(@"5"); normalImage = [[NSString alloc] initWithString:[data backgroundImage]]; clicked = NO; } return self; } And then: - (void)populateFieldsForTouchedItem:(TouchedRect)touchInfo { Data *touchDatum = [[Data alloc] init]; touchDatum = [[self delegateEntries] objectAtIndex:touchInfo.recordNumber]; NSLog(@"Assigning %@", [[[self delegateEntries] objectAtIndex:touchInfo.recordNumber] backgroundImage]); rect = [[arrayOfRects objectAtIndex:touchInfo.recordNumber] CGRectValue]; image = [[NSString alloc] initWithString:[[touchDatum sections] objectAtIndex:0]]; [touchDatum release]; } - (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event { TouchedRect touchInfo = [self containsTouchLocation:touch]; NSLog(@"Information pertains to %i", touchInfo.recordNumber); if ( !touchInfo.touched && !clicked ) { //needed since the touch location changes when zoomed NSLog(@"NOPE"); return NO; } [self populateFieldsForTouchedItem:touchInfo]; NSLog(@"YEP"); return YES; }

    Read the article

  • problem with JsonStore and JsonReader

    - by kalan
    Hello, In my ExtJS application I use EditorGridPanel to show data from server. var applicationsGrid = new Ext.grid.EditorGridPanel({ region: 'west', layout: 'fit', title: '<img src="../../Content/img/app.png" /> ??????????', collapsible: true, margins: '0 0 5 5', split: true, width: '30%', listeners: { 'viewready': { fn: function() { applicationsGridStatusBar.setText('??????????: ' + applicationsStore.getTotalCount()); } } }, store: applicationsStore, loadMask: { msg: '????????...' }, sm: new Ext.grid.RowSelectionModel({ singleSelect: true, listeners: { 'rowselect': { fn: applicationsGrid_onRowSelect} } }), viewConfig: { forceFit: true }, tbar: [{ icon: '../../Content/img/add.gif', text: '????????' }, '-', { icon: '../../Content/img/delete.gif', text: '???????' }, '-'], bbar: applicationsGridStatusBar, columns: [{ header: '??????????', dataIndex: 'ApplicationName', tooltip: '???????????? ??????????', sortable: true, editor: { xtype: 'textfield', allowBlank: false } }, { header: '<img src="../../Content/img/user.png" />', dataIndex: 'UsersCount', align: 'center', fixed: true, width: 50, tooltip: '?????????? ????????????? ??????????', sortable: true }, { header: '<img src="../../Content/img/role.gif" />', dataIndex: 'RolesCount', align: 'center', fixed: true, width: 50, tooltip: '?????????? ????? ??????????', sortable: true}] }); When I use JsonStore without reader it works, but when I try to update any field it uses my 'create' url instead of 'update'. var applicationsStore = new Ext.data.JsonStore({ root: 'applications', totalProperty: 'total', idProperty: 'ApplicationId', messageProperty: 'message', fields: [{ name: 'ApplicationId' }, { name: 'ApplicationName', allowBlank: false }, { name: 'UsersCount', allowBlank: false }, { name: 'RolesCount', allowBlank: false}], id: 'app1234', proxy: new Ext.data.HttpProxy({ api: { create: '/api/applications/getapplicationslist1', read: '/api/applications/getapplicationslist', update: '/api/applications/getapplicationslist2', destroy: '/api/applications/getapplicationslist3' } }), autoSave: true, autoLoad: true, writer: new Ext.data.JsonWriter({ encode: false, listful: false, writeAllFields: false }) }); I believe that the problem is that I don't use reader, but when I use JsonReader grid stops showing any data at all. var applicationReader = new Ext.data.JsonReader({ root: 'applications', totalProperty: 'total', idProperty: 'ApplicationId', messageProperty: 'message', fields: [{ name: 'ApplicationId' }, { name: 'ApplicationName', allowBlank: false }, { name: 'UsersCount', allowBlank: false }, { name: 'RolesCount', allowBlank: false}] }); var applicationsStore = new Ext.data.JsonStore({ id: 'app1234', proxy: new Ext.data.HttpProxy({ api: { create: '/api/applications/getapplicationslist1', read: '/api/applications/getapplicationslist', update: '/api/applications/getapplicationslist2', destroy: '/api/applications/getapplicationslist3' } }), reader: applicationReader, autoSave: true, autoLoad: true, writer: new Ext.data.JsonWriter({ encode: false, listful: false, writeAllFields: false }) }); So, does anyone know what the problem might be and how to solve it. The data returned from my server is Json-formated and seams to be ok {"message":"test","total":2,"applications":[{"ApplicationId":"f82dc920-17e7-45b5-98ab-03416fdf52b2","ApplicationName":"Archivist","UsersCount":6,"RolesCount":3},{"ApplicationId":"054e2e78-e15f-4609-a9b2-81c04aa570c8","ApplicationName":"Test","UsersCount":1,"RolesCount":0}]}

    Read the article

  • Technical non-terminating condition in a loop

    - by Snarfblam
    Most of us know that a loop should not have a non-terminating condition. For example, this C# loop has a non-terminating condition: any even value of i. This is an obvious logic error. void CountByTwosStartingAt(byte i) { // If i is even, it never exceeds 254 for(; i < 255; i += 2) { Console.WriteLine(i); } } Sometimes there are edge cases that are extremely unlikeley, but technically constitute non-exiting conditions (stack overflows and out-of-memory errors aside). Suppose you have a function that counts the number of sequential zeros in a stream: int CountZeros(Stream s) { int total = 0; while(s.ReadByte() == 0) total++; return total; } Now, suppose you feed it this thing: class InfiniteEmptyStream:Stream { // ... Other members ... public override int Read(byte[] buffer, int offset, int count) { Array.Clear(buffer, offset, count); // Output zeros return count; // Never returns -1 (end of stream) } } Or more realistically, maybe a stream that returns data from external hardware, which in certain cases might return lots of zeros (such as a game controller sitting on your desk). Either way we have an infinite loop. This particular non-terminating condition stands out, but sometimes they don't. A completely real-world example as in an app I'm writing. An endless stream of zeros will be deserialized into infinite "empty" objects (until the collection class or GC throws an exception because I've exceeded two billion items). But this would be a completely unexpected circumstance (considering my data source). How important is it to have absolutely no non-terminating conditions? How much does this affect "robustness?" Does it matter if they are only "theoretically" non-terminating (is it okay if an exception represents an implicit terminating condition)? Does it matter whether the app is commercial? If it is publicly distributed? Does it matter if the problematic code is in no way accessible through a public interface/API? Edit: One of the primary concerns I have is unforseen logic errors that can create the non-terminating condition. If, as a rule, you ensure there are no non-terminating conditions, you can identify or handle these logic errors more gracefully, but is it worth it? And when? This is a concern orthogonal to trust.

    Read the article

  • Send multidimensional array to php with jQuery

    - by robertdd
    hy, i have a little, big problem here :) after i upload some images i get a list with all the images. I have some jQuery function for rotate, duplicate, delete, shuffle images! when i select a image and hit delete i send a post to php with the alt="" value of the image,i identify the picture and edit. I want to make a save button, Instead of sending a post every time i rotate a image, better send a post after editing the list of images with an array that contains all data? my php array after upload looks like this: [files] => Array ( [lcxkijgr] => lcxkijgr.jpg [xcewxpfv] => xcewxpfv.jpg [rtiurwxf] => rtiurwxf.jpg [gsbxdsdc] => gsbxdsdc.jpg ) say that I uploaded 4 pictures, firs picture i rotate 90 degrees second i want to duplicate third i rotate 270 degrees and the fourth image i delete i can do all this only with jQuery, but on the server the images are the same, after a refresh the images are the same this is the list with the images: <div class="upimage"> <ul id="upimagesQueue"> <li id="upimagesHPVEJM"> <a href="javascript:jQuery('#upimagesHPVEJM').showlargeimage('HPVEJM')"> <img alt="lcxkijgr" src="uploads/s6id9r9icnp8q9102h8md9kfd7/lcxkijgr.jpg?1272087830477" id="HPVEJM" style="display: block;" > </a> </li> <li id="upimagesSTCSAV"> <a href="javascript:jQuery('#upimagesSTCSAV').showlargeimage('STCSAV')"> <img alt="xcewxpfv" src="uploads/s6id9r9icnp8q9102h8md9kfd7/xcewxpfv.jpg?1272087831360" id="STCSAV" style="display: block;" > </a> </li> <li id="upimagesBFPUEQ"> <a href="javascript:jQuery('#upimagesBFPUEQ').showlargeimage('BFPUEQ')"> <img alt="rtiurwxf" src="uploads/s6id9r9icnp8q9102h8md9kfd7/rtiurwxf.jpg?1272087832162" id="BFPUEQ" style="display: block;" > </a> </li> <li id="upimagesRKXNSV"> <a href="javascript:jQuery('#upimagesRKXNSV').showlargeimage('RKXNSV')"> <img alt="gsbxdsdc" src="uploads/s6id9r9icnp8q9102h8md9kfd7/gsbxdsdc.jpg?1272087832957" id="RKXNSV" style="display: block;"> </a> </li> <ul> </div> is ok if i make one array like this: array{ imgFromLi = array(img1,img2,img3,img4,img5,img6) rotate = array{img1=90, img2=270, img3=90} delete = array{img4,img5,img6} duplicate = array{img2, img3} } how i can make/send/cache this array?? sorry for my very bad english

    Read the article

< Previous Page | 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479  | Next Page >