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  • why i got : ReferenceError: $ is not defined $.ajax({

    - by user2922621
    i need to call phpfile through ajax.. i tried \::; <html> <script type="text/javascript"> setInterval(function(){ test(); },3000); function test(){ $.ajax({ type: "POST", url: "GetMachineDetail.php", data: "{}", success: function(response){ alert("suceccess");} }); } Its simple javascript jquery calling.. but we got ajax not found eror, any solution please.

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  • Passing a variable that can be updated

    - by Rob Bonner
    This seems like a simple thing, but can't get it to work. I pass a variable into a UIViewController thourgh a standard property: [aViewController setProposedDate:proposedWorkLog.entryDate]; which is retained by the controller, and possible changed. I have verified that in the controller, the data is modified. But, after it is popped off the stack and I look in the calling view, the data has not been updated. Is there a way to pass this variable and have it retain the new value, or a way to pass back a response from a closing view controller? Thanks!

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  • Uploading an image file with Paperclip (in RoR) causing error.

    - by mtay
    This should be a simple thing to do, but I'm running into a wall and I'm not sure how to debug this response. In my Image model, I have: class Image < ActiveRecord::Base has_attached_file :image, :styles => { :display => "500x500>", :thumbnail => "95x95>"} Then in my Views, my form contains this: -form_for @image, :html => { :multipart => true } do |image| %tr %td.woc_left =label_tag :image, 'photo to upload', :class => 'required' %td.woc_center =image.file_field :image In my Mysql table, I have a column called "image_file_name" (string). However, when I try to upload an image and submit it, I see 2 errors prohibited this from being saved There were problems with the following fields: Image Paperclip::CommandNotFoundError Image Paperclip::CommandNotFoundError What am I doing wrong? Thank you for your help!

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  • MySQL Insert Query Randomly Takes a Long Time

    - by ShimmerTroll
    I am using MySQL to manage session data for my PHP application. When testing the app, it is usually very quick and responsive. However, seemingly randomly the response will stall before finally completing after a few seconds. I have narrowed the problem down to the session write query which looks something like this: INSERT INTO Session VALUES('lvg0p9peb1vd55tue9nvh460a7', '1275704013', '') ON DUPLICATE KEY UPDATE sessAccess='1275704013',sessData=''; The slow query log has this information: Query_time: 0.524446 Lock_time: 0.000046 Rows_sent: 0 Rows_examined: 0 This happens about 1 out of every 10 times. The query usually only takes ~0.0044 sec. The table is InnoDB with about 60 rows. sessId is the primary key with a BTREE index. Since this is accessed on every page view, it is clearly not an acceptable execution time. Why is this happening? Update: Table schema is: sessId:varchar(32), sessAccess:int(10), sessData:text

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  • KindError: Property r must be an instance of SecondModel, why ?

    - by zjm1126
    class FirstModel(db.Model): p = db.StringProperty() r=db.ReferenceProperty(SecondModel) class SecondModel(db.Model): r = db.ReferenceProperty(FirstModel) class sss(webapp.RequestHandler): def get(self): a=FirstModel() a.p='sss' a.put() b=SecondModel() b.r=a b.put() a.r=b a.put() self.response.out.write(str(b.r.p)) the error is : Traceback (most recent call last): File "D:\Program Files\Google\google_appengine\google\appengine\ext\webapp\__init__.py", line 511, in __call__ handler.get(*groups) File "D:\zjm_code\helloworld\a.py", line 158, in get a.r=b File "D:\Program Files\Google\google_appengine\google\appengine\ext\db\__init__.py", line 3009, in __set__ value = self.validate(value) File "D:\Program Files\Google\google_appengine\google\appengine\ext\db\__init__.py", line 3048, in validate (self.name, self.reference_class.kind())) KindError: Property r must be an instance of SecondModel thanks

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  • Filter---after setting attribute--->Servlet---after getting and setting the attribute---->Jsp How do I do this?

    - by Y.E.P
    This is what I want to do : A servlet is called.Before a servlet is called , the request is intercepted by a filter. Filter gets some details out from the request,sets them as an attribute and the forwards it to a servlet via chain.doFilter(request,response). Request finally reaches the servlet. Servlet gets the attribute set by the filter before and sets a new attribute by another name. Then it forwards it to some jsp page where the page gets the attribute and processes it. How do I do this ? I know how to write a filter and a servlet but how do I forward it to a jsp page from the servlet or is there any other way to achieve this ?

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  • Cadr of a list involving assoc function

    - by user3619045
    I have looked around on the net and cant find an answer to my query. I would really appreciate if someone could provide a good answer without down rating this post. In Lisp car, cdr are used on data mode like '(whatever here) which makes sense to me. Now, in the book Land of Lisp the author is explaining how to build a text engine and suddenly he uses the following description to make a function. (defun describe-location (location nodes) (cadr (assoc location nodes))) Can I ask why is he doing a cadr on a list and how come it provides a response and not an error? shouldn't it be a data mode i.e with a quote in front of the opening bracket '(whatever here)? and also why is he using assoc as in (assoc location nodes) and not (assoc 'garden *nodes*) Isn't the second correct way to use assoc ? I may be missing the big picture and as such would really appreciate someone explaining these key points please. Many thanks!

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  • Facebook iframe app redirecting https to http, how?

    - by Paul Whitrow
    I'm trying to get an app working within Facebook, but it seems that no matter what I try including forcing just https in the app settings (see screen shot), the iframe source (Facebooks canvas) seems to change the https address to http (301) which is then producing SEC7111: HTTPS security errors in IE? (sorry I can't post screen shots or extra links yet:( ) Header dump of page in question: Request URL:https://[hidden] Request Method:POST Status Code:301 Moved Permanently Request Headers (13) Form Data (1) Response Headersview source Connection:keep-alive Content-Encoding:gzip Content-Length:253 Content-Type:text/html; charset=iso-8859-1 Date:Mon, 01 Jul 2013 09:42:32 GMT Location:http://[hidden] Server:Apache/2.2.22 Vary:Accept-Encoding I'm getting so confused by this, and would welcome any help that the community could offer.

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  • Zend Framework: How to handle exceptions in Ajax requests?

    - by understack
    Normally when an exception is thrown, Error controller takes command and displays error page with regular common header and footer. This behavior is not wanted in Ajax request. Because in case of error, whole html page is sent over. And in cases where I'm directly loading the content of http response in a div, this is even more unwanted. Instead in case of Ajax request, I just want to receive 'the actual error' thrown by exception. How can I do this? I think, one dirty way could be: set a var in ajax request and process accordingly. Not a good solution.

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  • Web Service Security java

    - by WhoAmI
    My web service was created some time back using IBM JAX-RPC. As a part of enhancement, I need to provide some security to the existing service. One way is to provide a handler, all the request and response will pass through that handler only. In the request I can implement some authentication rules for each and every application/user accessing it. Other than this, What are the possible ways for securing it? I have heard someting called wsse security for web service. Is it possible to implement it for the JAX-RPC? Or it can be implemented only for JAX-WS? Need some helpful inputs on the wsse security so that i can jump learning it. Other than handler and wsse security, any other possible way to make a service secure? Please help.

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  • How to disable EditText box in Android when using LongClick Listener

    - by user1443051
    I have EditText box which has focusable and focusableontouch enabled and all the rest are disabled in XML. The problem I am facing is that on longclick on this text box the selectAll and select pop up comes up - I would like to disable it and at the same time use the OnlongClick Funtion too.. So I tried android:longClickable="false" on XML and set the text box using LongClick listener in java Something like this: edEmailId.setOnLongClickListener(myOnLongClickListener); Didn't work I am still getting selectALL popup window. Is LongClickable in XML and SetOnlongClicklistener the same? If so how do I disable the popup? Awaiting your response! Thanks!

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  • How do I make a DIV stay at the top of the screen no matter ow far down the page my visitor scrolls?

    - by user1289863
    What I'm saying is, I have some extremely long pages on my website, which can make it annoying I've my visitors need to scroll to the top of the page to be able to navigate to another page. I'm not quite sure what I would call this but any Google search that contains the words 'DIV' and 'float' come up with completely unrelated results... What I'm looking to do is create a DIV that stays at the top of the Screen (not to be confused with the page) so that if the user is at the bottom of the page, they can still see the navigation bar just floating at the top of the screen. What I can think of is to position the DIV relative to the position of the screen but I don't know how to code this. I'm happy to use JavaScript (preferably in the form of jQuery), but if you know how to do this using CSS, I would favour your response. This might help: I know a little bit of jQuery and JavaScript and I know a good deal of CSS and HTML. Thanks in advance.

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  • Why StringWriter.ToString return `System.Byte[]` and not the data?

    - by theateist
    UnZipFile method writes the data from inputStream to outputWriter. Why sr.ToString() returns System.Byte[] and not the data? using (var sr = new StringWriter()) { UnZipFile(response.GetResponseStream(), sr); var content = sr.ToString(); } public static void UnZipFile(Stream inputStream, TextWriter outputWriter) { using (var zipStream = new ZipInputStream(inputStream)) { ZipEntry currentEntry; if ((currentEntry = zipStream.GetNextEntry()) != null) { var size = 2048; var data = new byte[size]; while (true) { size = zipStream.Read(data, 0, size); if (size > 0) { outputWriter.Write(data); } else { break; } } } } }

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  • Querying Postgresql with a very large result set

    - by sanity
    In an application I need to query a Postgres DB where I expect tens or even hundreds of millions of rows in the result set. I might do this query once a day, or even more frequently. The query itself is relatively simple, although may involve a few JOINs. My question is: How smart is Postgres with respect to avoiding having to seek around the disk for each row of the result set? Given the time required for a hard disk seek, this could be extremely expensive. If this isn't an issue, how does Postgres avoid it? How does it know how to lay out data on the disk such that it can be streamed out in an efficient manner in response to this query?

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  • Callback exception/error handling for ASP TreeView OnTreeNodePopulate?

    - by MHutchinson
    We're using an asp:TreeView configured with lazy loading. The callback method assigned for OnTreeNodePopulate throws an exception if the user has been logged out since the page was loaded. What we want to do is to direct the user to the login page. First attempt was to catch the exception on the server and try Response.Redirect(...), but that doesn't work because you can't redirect within a callback. I've tried various other approaches, including using ClientScript.RegisterStartupScript(...) but that doesn't seem to work for OnTreeNodePopulate. If there was some way we could hook into the callback event handling on the client side then it would be easy, but the TreeView doesn't seem to offer anything here. Suggestions?

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  • Windows Azure Mobil Services first connection in Android

    - by egente
    my application based windows azure mobil services. Application connecting time is well normally but when login to application first time azure mobile services connection is very slow like 10 second, after connection speed is normally. how can i solve this problem? my codes; private MobileServiceClient mClient; private MobileServiceTable<products> mProductsTable; mClient = new MobileServiceClient( "https://example.azure-mobile.net/", "aaaaaaaaaaaaaaaaaaaaaaaa", this).withFilter(new ProgressFilter());; mProductsTable = mClient.getTable(products.class); mProductsTable.where() .execute(new TableQueryCallback<products>() { public void onCompleted(List<products> result, int count, Exception exception, ServiceFilterResponse response) { if (exception == null) { } else{ Toast.makeText(Product.this, "Ops!!! Error.", 1000).show(); }} });

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  • Socket.io Duplicate clients on a namespace

    - by Servernumber
    Hi I'm trying to use dynamic namespace to create them on demand. It's working except that I get duplicate or more client for some reason Server side : io.of("/" + group ).on("connection", function(socket_group) { socket_group.groupId = group; socket_group.on("infos", function(){ console.log("on the group !"); }) socket_group.on('list', function () { Urls.find({'group' : '...'}).sort({ '_id' : -1 }).limit(10).exec(function(err, data){ socket_group.emit('links', data); }); }) [...] }) Client Side : socket.emit('list', { ... }); On the client side only one command is sent but the server is always responding with 2 or more responses. Every time I close/open my app the response is incremented. Thanks if you find out.

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  • Google App Engine: Difficulty with Users API (or maybe just a Python syntax problem)

    - by Rosarch
    I have a simple GAE app that includes a login/logout link. This app is running on the dev server at the moment. The base page handler gets the current user, and creates a login/logout url appropriately. It then puts this information into a _template_data dictionary, for convenience of subclasses. class BasePage(webapp.RequestHandler): _user = users.get_current_user() _login_logout_link = None if _user: _login_logout_link = users.create_logout_url('/') else: _login_logout_link = users.create_login_url('/') _template_data = {} _template_data['login_logout_link'] = _login_logout_link _template_data['user'] = _user def render(self, templateName, templateData): path = os.path.join(os.path.dirname(__file__), 'Static/Templates/%s.html' % templateName) self.response.out.write(template.render(path, templateData)) Here is one such subclass: class MainPage(BasePage): def get(self): self.render('start', self._template_data) The login/logout link is displayed fine, and going to the correct devserver login/logout page. However, it seems to have no effect - the server still seems to think the user is logged out. What am I doing wrong here?

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  • A better and faster way for eval?

    - by user1707250
    I want to build my queries dynamically and use the following snippet: --snip-- module.exports = { get : function(req, res, next) { var queryStr = "req.database.table('locations').get(parseInt(req.params.id))"; if (req.params.id) { if (req.fields) { queryStr += '.pick(' + req.fieldsStr + ')'; } console.log(queryStr); eval(queryStr).run(function(result) { console.log(result); res.send(result); }); } else if (!req.params.id) { --snip-- However introducing eval opens up my code to injection (req.fields is filled with url parameters) and I see the response time of my app increase from 7 to 11ms Is there a smarter way to accomplish what I did here? Please advice.

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  • jQuery/JSON/PHP failing

    - by user730936
    I am trying to call a php script that accepts JSON data, writes it into a file and returns simple text response using jQuery/AJAX call. jQuery code : $("input.callphp").click(function() { var url_file = myurl"; $.ajax({type : "POST", url : url_file, data : {'puzzle': 'Reset!'}, success : function(data){ alert("Success: " + data); }, error : function (data) { alert("Error: " + data); }, dataType : 'text' }); }); PHP Code : <?php $thefile = "new.json"; /* Our filename as defined earlier */ $towrite = $_POST["puzzle"]; /* What we'll write to the file */ $openedfile = fopen($thefile, "w"); fwrite($openedfile, $towrite); fclose($openedfile); echo "<br> <br>".$towrite; ?> However, the call is never a success and always gives an error with an alert "Error : [Object object]".

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  • Sending compres data via socket

    - by Pizza
    Hi, I have to make a log server in java, and one task is to send the data compressed. Now I am sending it line by line in plain text, but I must compress it. The server handle "HTTP like" request. For example, I can get a log sending "GET xxx.log". This will entablish a TCP connection to the server, the server response with a header and the log, and close the connection. The client, reads line by line and analyzes each LOG entry. I tried some ways without success. My main problem is that I don't know where each line ends(in the client size). Any idea?

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  • Problem with sockets in C#

    - by depo
    Socket socket = new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp); ... socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000); ... socket.Send(bytesSent, bytesSent.Length, 0); ... bytes = socket.Receive(bytesReceived, bytesReceived.Length, 0); After socket has sent the data, server does not respond so that program waits for response. How to stop receiving data after 1000 miliseconds? ?

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  • PHP: Simulate a <form> tag with POST data and also redirecting the user...

    - by tarnfeld
    Hi, I have been scouring the internet for a way to do this with no luck :( Basically, it's easy to make a form in HTML with a submit button and some data, and send it to a URL. With this you send the POST data and also the user is taken to the page. I know you can send POST data using cURL and get a response back in PHP but how do I take the user there, I need to simulate exactly what a tag does in php. Some sample code or links would be great! Thanks in advanced...

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  • MySQL query with JOINS and GROUP BY

    - by user1854049
    I'm building a MySQL query but I can't seem to get it right. I have four tables: - customers - orders - sales_rates - purchase_rates There is a 1:n relation 'customernr' between customers and orders. There is a 1:n relation 'ordernr' between orders and sales_rates. There is a 1:n relation 'ordernr' between orders and purchase_rates. What I would like to do is produce an output of all customers with their total purchase and sales amounts. So far I have the following query. SELECT c.customernr, c.customer_name, SUM(sr.sales_price) AS sales_price, SUM(pr.purchase_price) AS purchase_price FROM orders o, customers c, sales_rates sr, purchase_rates pr WHERE o.customernr = c.customernr AND o.ordernr = sr.ordernr AND o.ordernr = pr.ordernr GROUP BY k.bedrijfsnaam The result of the sales_price and purchase_price is far too high. I seem to be getting double counts. What am I doing wrong? Is it possible to perform this in a single query? Thank for your response!

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  • to store char* from function return value

    - by samprat
    Hi folks, I am trying to implement a function which reads from Serial Port ( Linux) and retuns char*. The function works fine but how would I store return value from function. example of function is char *ReadToSerialPort() { char *bufptr; char buffer[256]; // Input buffer/ / //char *bufptr; // Current char in buffer // int nbytes; // Number of bytes read // bufptr = buffer; while ((nbytes = read(fd, bufptr, buffer+sizeof(buffer)-bufptr -1 )) > 0) { bufptr += nbytes; // if (bufptr[-1] == '\n' || bufptr[-1] == '\r') /*if ( bufptr[sizeof(buffer) -1] == '*' && bufptr[0] == '$' ) { break; }*/ } // while ends if ( nbytes ) return bufptr; else return 0; *bufptr = '\0'; } // end ReadAdrPort //In main int main( int argc , char *argv[]) { char *letter; if(strcpy(letter, ReadToSerialPort()) >0 ) { printf("Response is %s\n",letter); } }

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