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  • Form variable does not refresh with ajax call

    - by ChrisOPeterson
    I'm building a simple email sending form and wanted to make it with ajax. The form submits correctly the first time but if you make any subsequent changes to the text in the form and then submit again then jquery does not pick up on the changes and posts the old data. Whats going on? <script type="text/javascript"> var $j = jQuery.noConflict(); $j(document).ready(function() { var submit_url = "mail_submit.php"; var send_email = $j("#sendemail"); send_email.click(function() { var form = $j("#post"); $j.post(submit_url, form.serialize(), function(data) { alert(data); }); }); });

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  • Using pthread condition variable with rwlock

    - by Doomsday
    Hello, I'm looking for a way to use pthread rwlock structure with conditions routines in C++. I have two questions: First: How is it possible and if we can't, why ? Second: Why current POSIX pthread have not implemented this behaviour ? To understand my purpose, I explain what will be my use: I've a producer-consumer model dealing with one shared array. The consumer will cond_wait when the array is empty, but rdlock when reading some elems. The producer will wrlock when adding(+signal) or removing elems from the array. The benefit of using rdlock instead of mutex_lock is to improve performance: when using mutex_lock, several readers would block, whereas using rdlock several readers would not block.

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  • Why is this global variable not being changed???

    - by user398314
    Why does this turn up null instead of being set to the data returned from the ajax call? It must be something simple i am overlooking. var message; $(document).ready(function(){ fbFetchMessage(); alert(message); }); function fbFetchMessage(){ var url = "http://graph.facebook.com/companyname/feed?callback=?"; $.getJSON(url,function(json){ message = json.data[0].message; }); }

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  • Double variable argument list.

    - by Lukasz Lew
    I need something like this: class Node (left : Node*, right : Node*) I understand the ambiguity of this signature. Is there a way around it better than the following? class Node (left : Array[Node, right : Array[Node]) val n = new Node (Array(n1, n2), Array(n3)) Maybe some kind of separator like this? val n = new Node (n1, n2, Sep, n3)

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  • how to truncate an double datatype value variable

    - by prince23
    hi, i have an class public class Score { public double marks { get; set; } } now in my code List<Level1> Obj= new List<Level1>(); Score Object= new Score(); l1.marks=94.345454; Obj.Add(Object) // now whiling adding the object to list i need to trunacte the value to 94.34 and store in the list obj. so that i need to get output has 94.34 how can i do it. thanks in advance prince

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  • session variable not available in global before(:each, :type => :controller)

    - by Rob
    Hi, I'm refactoring some specs, in controller specs I have a before(:each) which sets up things required in the session my before filter is... config.before(:each, :type => :controller) do ... session[:current_user] = @user session[:instance] = @instance ... end @user and @instance are also set in the before(:each) i've just hidden them for readability here I get the following error when running the controller tests undefined method `session' for nil:NilClass I would expect the global before callbacks to have the same things as the ones in the individual tests but I guess maybe they are loaded before the rails environment has been initialised? Thanks

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  • variable size datatype(int) in c++

    - by goutham
    Hello I want to use a datatype to represent sizes like 3bits or 12bits.. can anyone tell me how can I implement this in c++ and is there any code like this, which can help me define size in bits int i:3; thanks in advance ..

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  • Air/Flex concatenating a variable with a property

    - by Deyon
    I have three text boxes on the stage id=red, blue, green same as the keys in my cars Object/Array public function carsToBox():void { var cars:Object={red:"300zx",blue:"Skyline",green:"Supra"}; for(var tempObj:String in cars) { tempObj.text= cars[tempObj];//this trows errors } } So I'm thinking "tempObj.text" would equal red.text but I can't stick "tempObj" with ".text" is there a way this can be done?

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  • JS variable scope missunderstanding

    - by meo
    I have a little problem: slideHelpers.total = 4 for (i=1;i <= slideHelpers.total; i++) { $('<a href="#">' + i + '</a>').bind('click', function(){ alert('go to the ' + i + ' slide')}).appendTo('.slideaccess') } the alert gives out 5 what is logic, because when the function click triggers i is actually 5. But i would like to have the same i as in my <a> tag. What is the best way to handle this? I could put i in the data() of the <a> tag for example but i am sure there is a easier way.

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  • How to call javascript function when url variable is sent

    - by mattlarkin
    Hello, heres basically what I need to get done. I have a jsp page which allows me to add/modify/delete an item. The items are stored in a database which I have controller classes to access(dont worry bout that part) When an item gets selected and deleted the id of the item gets sent to the controller to be processed. The item will not always be deleted if their is a foreign key constraint so I send either a delete=true or delete=false through url back to the jsp page. I would like to have it so a javascript function gets called displaying an alert saying the item was deleted or the item was not deleted. can someone please tell me the best way to do this? thank you

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  • PHP: Accessing an object property with a variable.

    - by Peter
    Let's assume I have an array of object properties I'd like to access: $properties = array('foo', 'bar'); I'd like to loop through the object and access these properties dynamically (specifically, I'm trying to dynamically handle missing JSON elements based on an array of expected elements): foreach ($data as $item) { foreach ($properties as $property) { if (empty($item->{$property})) { // Do something } } } Each $item in $data should have the properties 'foo' and 'bar'. If empty(), I'll handle them. I'm trying to get the loop (in line 3) to access $item-{'foo'} and $item-{'bar'}, but it's not working. Any idea why? Thanks!

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  • Putting a variable name = value format in Ruby

    - by Calm Storm
    Hi, I would like to add some debugs for my simple ruby functions and I wrote a function as below, def debug(&block) varname = block.call.to_s puts "#{varname} = #{eval(varname,block)}" end debug {:x} #prints x = 5 debug {:y} #prints y = 5 I understand that eval is evil. So I have two questions. Is there any way to write that debug method without using eval? If NO is there a preferred way to do this? Is there any way to pass a list of arguments to this method? I would ideally prefer debug {:x, :y. :anynumOfvariables}. I could not quite figure out how to factor that into the debug method (i.e, to take a list of arguments)

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  • Cannot running next process when a variable save no value

    - by bruine
    First, I wanna compare between 2 tables tb_wrapper and tb_summary to get the data in the tb_wrapper that doesn't exist in the tb_summary then save in $link. If I don't get the same data, I want to print the result $link. When I don't get the not same data, I want it to go to another process. Here's the code : $q2 = mysql_query(" SELECT a.doc_url FROM tb_wrapper a LEFT JOIN tb_summary b ON a.doc_name = b.doc_summ WHERE b.doc_summ IS NULL"); while ($row = mysql_fetch_array($q2)){ $link = $row['doc_url']; if (!$link){ include 'next_process.php'; } else { print_r($link); } } it doesn't work. When I don't get the not same data or $link not save a value. table : CREATE TABLE tb1 (`id` int, `doc_name` varchar(100), `doc_url` varchar(50)) } CREATE TABLE tb2 (`id` int, `doc_summ` varchar(100)) }

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  • Removing the last character of a string IF it is $variable

    - by KeenLearner
    Hi there, I've made a little script to convert titles into url friendly things. ie: 'I am a title' becomes 'I_am_a_title' My script basically goes through and turns spaces, apostrophes, commas etc etc into an underscore. The problem is, sometimes my url's end up like this: 'i_am_a_title_' with a trailing underscore... So i figure, add a little bit to go through and search to see if the last character is an underscore on the final result, and if it is, then swap it. I looked into the strrchr() function but I seem to be hitting a wall of my own understanding. How is this sort of thing accomplished?

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  • How to pass a variable through url and use it inside a controller

    - by anthonypliu
    I have this controller: public ActionResult Details(String UserName) { using (var db = new MatchGamingEntities()) { var Users = from m in db.Users join m2 in db.MyProfiles on m.UserId equals m2.UserId where m.UserName == UserName select new UserViewModel { UserName = m.UserName, LastActivityDate = m.LastActivityDate, Address = m2.Address, City = m2.City, State = m2.State, Zip = m2.Zip }; return View(Users.SingleOrDefault()); } } I type in the url Profiles/Details/hello, but it does not work, if I do Profiles/Details?UserName=hello then it works. I have another ActionResult just like this except taking in an int id as parameter and it works fine with the first url format.

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  • How to define a class with variable properties?

    - by user1723326
    I'm making a database program. I want the user to be able to define their own columns, as many as they want. How would I then define each record in its class file?(Since the properties would be different user to user) EDIT: It's part of a school assignment-it's going to hold different scores and the likes for the teacher for different students they can add, but they will also be able to add a new assignment, test(a column) .

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  • ajax how to read out $_post variable

    - by alex
    Hi, I am trying to filter/search a database with ajax $.ajax({ type: "POST", url: "filterSearch.php", queryString: qry, success: function(data){ alert( "Data Saved: " + data ); $('#searchResult').html(data); // Fill the search results box } }); Now in filterSearch.php i have the following test codes if(isset($_POST['queryString'])) { echo "TEST"; } if($_POST['runquery']==1) { $sql = "SELECT * FROM fs_vacatures WHERE here-the-like-query?"; $msg = $sql; echo $msg; die(); } die(); But nor TEST or the $sql is return in the alert??

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  • Creating a Variable From Two Others

    - by John
    Hello, In the HTML table below, I would like to add a third column that equals $row["countSubmissions"] times 10 plus $row["countComments"]. How could I do this? Thanks in advance, John $sqlStr = "SELECT l.loginid, l.username, COALESCE(s.total, 0) AS countSubmissions, COALESCE(c.total, 0) AS countComments FROM login l LEFT JOIN ( SELECT loginid, COUNT(1) AS total FROM submission GROUP BY loginid ) s ON l.loginid = s.loginid LEFT JOIN ( SELECT loginid, COUNT(1) AS total FROM comment GROUP BY loginid ) c ON l.loginid = c.loginid GROUP BY l.loginid ORDER BY countSubmissions DESC LIMIT 10"; $result = mysql_query($sqlStr); $arr = array(); echo "<table class=\"samplesrec1edit\">"; while ($row = mysql_fetch_array($result)) { echo '<tr>'; echo '<td class="sitename1edit1"><a href="http://www...com/.../members/index.php?profile='.$row["username"].'">'.stripslashes($row["username"]).'</a></td>'; echo '<td class="sitename1edit2">'.stripslashes($row["countSubmissions"]).'</td>'; echo '<td class="sitename1edit2">'.stripslashes($row["countComments"]).'</td>'; echo '</tr>'; } echo "</table>";

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  • When to use pointer to a class and when to just instantiate it as a variable

    - by Enders
    Im sort of confused by it. The best I could find was reading through the cplusplus.com tutorial and all they have to say about pointers to classes. "It is perfectly valid to create pointers that point to classes. We simply have to consider that once declared, a class becomes a valid type, so we can use the class name as the type for the pointer" Which tells me nothing about when to use them over the normal instantiation. I've seen the - operator many times, and looked at some codes but cant really decipher why they did it. Generic examples will be appreciated; but more specifically related to gui programming. Its where I encountered it first. QGridLayout *mainLayout = new QGridLayout; mainLayout->addWidget(nameLabel, 0, 0); mainLayout->addWidget(nameLine, 0, 1); mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop); mainLayout->addWidget(addressText, 1, 1); Why not QGridLayout mainLayout mainLayout.addWidget ... (It doesnt compile if I change the sample code to that and try it but you get the point) Thanks in advance

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  • trying to show a variable in my layout

    - by user1400
    hi i have a simple question where is my code wrong ? in index controller and index action i put $this->view->username="user1"; and when i try in my layout i use echo $this->username; i got fllowing error or null value Notice: Trying to get property of non-object in D:\Zend\Apache2\htdocs\test\application\layouts\layout.phtml on line 115 thanks

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  • Can i Use the value of a variable from within a ruby script inside ssh.exec()

    - by kamal
    If i have a # {} , like #{results}, in the snippet below: results = Array.new                                   f = open("/Users/kahmed/messages", "r")                                   f.each_line do |line|                                        results << "#{$.} #{line}" if line =~ /NFE/                                       put #{results}                                   end How can i use it in the following ssh.exec command Net::SSH.start( HOST, USER, :password = PASS ) do|ssh|                                   ssh.exec(#{results})

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  • Excel assign copied sheet name as variable

    - by rach-90
    I'm trying to copy an existing sheet in my workbook and then I want to use the copied sheet to run the rest of my code. (Sheet3 is the existing sheet, S_Temp is the copied sheet) Dim s_Temp as string Sheet3.copy Activesheet.name = S_Temp Sheets("S_Temp").Range("A1").value = "Test" How can I reference to the copied sheet?

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  • Trying to pass variable from 1 Function to Another to Put in Array within same Model

    - by Jason Shultz
    Ok, that sounds really confusing. What I’m trying to do is this. I’ve got a function that uploads/resizes photos to the server. It stores the paths in the DB. I need to attach the id of the business to the row of photos. Here’s what I have so far: function get_bus_id() { $userid = $this->tank_auth->get_user_id(); $this->db->select('b.id'); $this->db->from ('business AS b'); $this->db->where ('b.userid', $userid); $query = $this->db->get(); if ($query->num_rows() > 0) { return $query->result_array(); } That get’s the id of the business. Then, I have my upload function which is below: /* Uploads images to the site and adds to the database. */ function do_upload() { $config = array( 'allowed_types' => 'jpg|jpeg|gif|png', 'upload_path' => $this->gallery_path, 'max_size' => 2000 ); $this->load->library('upload', $config); $this->upload->do_upload(); $image_data = $this->upload->data(); $config = array( 'source_image' => $image_data['full_path'], 'new_image' => $this->gallery_path . '/thumbs', 'maintain_ratio' => true, 'width' => 150, 'height' => 100 ); $this->load->library('image_lib', $config); $this->image_lib->resize(); $upload = $this->upload->data(); $bus_id = $this->get_bus_id(); $data = array( 'userid' => $this->tank_auth->get_user_id(), 'thumb' => $this->gallery_path . '/thumbs/' . $upload['file_name'], 'fullsize' => $upload['full_path'], 'busid'=> $bus_id['query'], ); echo var_dump($bus_id); $this->db->insert('photos', $data); } The problem I’m getting is the following: A PHP Error was encountered Severity: Notice Message: Undefined index: id Filename: models/gallery_model.php Line Number: 48 I’ve tried all sorts of ways to get the value over, but my limited knowledge keeps getting in the way. Any help would be really appreciated.

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