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  • Question on jpa joined table inheritance

    - by soontobeared
    Hi, The 'DiscriminatorColumn' annotation isn't creating any column in my parent entity. Where am I going wrong ? Here's my code @Entity @Inheritance(strategy=InheritanceType.JOINED) @DiscriminatorColumn(name="TYPE", discriminatorType=DiscriminatorType.STRING,length=20) public class WorkUnit extends BaseEntityClass implements Serializable{ @Entity @DiscriminatorValue(value="G") @Table(name="Group_") @PrimaryKeyJoinColumn public class Group extends WorkUnit implements Serializable{

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  • Ajax gets nothing back from the php.

    - by ShaMun
    Jquery i dont have alert and firefox i dont have anything in return. The code was working before, database query have successfull records also. What i am missing??? Jquery ajax. $.ajax({ type : "POST", url : "include/add_edit_del.php?model=teksten_display", data : "oper=search&ids=" + _id , dataType: "json", success : function(msg){ alert(msg); } }); PHP case 'teksten_display': $id = $_REQUEST['ids']; $res = $_dclass-_query_sql( "select a,b,id,wat,c,d from tb1 where id='" . $id . "'" ); $_rows = array(); while ( $rows = mysql_fetch_array ($res) ) { $_rows = $rows; } //header('Cache-Control: no-cache, must-revalidate'); //header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); header('Content-type: application/json'); echo utf8_encode( json_encode($_rows) ) ; //echo json_encode($_rows); //var_dump($_rows); //print_r ($res); break; Firefox response/request header Date Sat, 24 Apr 2010 22:34:55 GMT Server Apache/2.2.3 (CentOS) X-Powered-By PHP/5.1.6 Expires Thu, 19 Nov 1981 08:52:00 GMT Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma no-cache Content-Length 0 Connection close Content-Type application/json Host www.xxxx.be User-Agent Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.5.9-2.fc12 Firefox/3.5.9 Accept application/json, text/javascript, */* Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 300 Connection keep-alive Content-Type application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With XMLHttpRequest Referer http://www.xxxx.be/xxxxx Content-Length 17 Cookie csdb=2; codb=5; csdbb=1; codca=1.4; csdca=3; PHPSESSID=benunvkpecqh3pmd8oep5b55t7; CAKEPHP=3t7hrlc89emvg1hfsc45gs2bl2

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  • What's the simplest way to extract the last section of an IP address?

    - by Jon Cage
    I have an IP address which I want to grab the last chunk of as an integer. So from "192.168.1.150" I'd get 150. This is the code I'd concocted (I'm using C++/CLI), but somehow it feels rather clunky: String^ ipString = "192.168.1.150"; int lastDot = ipString->LastIndexOf('.'); int lastSection = int::Parse(ipString->Substring(lastDot, ipString->Length-lastDot)); Is there a simpler way of doing this?

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  • Java: most efficient way to defensively copy an int[]?

    - by Jason S
    I have an interface DataSeries with a method int[] getRawData(); For various reasons (primarily because I'm using this with MATLAB, and MATLAB handles int[] well) I need to return an array rather than a List. I don't want my implementing classes to return the int[] array because it is mutable. What is the most efficient way to copy an int[] array (sizes in the 1000-1000000 length range) ? Is it clone()?

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  • How can I make Google Maps icon to always appear in the center of map - when clicked?

    - by JHM_67
    For simplicity sake, lets use the XML example on Econym's site. http://econym.org.uk/gmap/example_map3.htm Once clicked, I would like icon balloon to be displayed in the middle of the map. What might I need to add to Mike's code to get this to work? I apologize for asking a lot.. Thanks in advance. <script type="text/javascript"> //<![CDATA[ if (GBrowserIsCompatible()) { side_bar var side_bar_html = ""; var gmarkers = []; function createMarker(point,name,html) { var marker = new GMarker(point); GEvent.addListener(marker, "click", function() { marker.openInfoWindowHtml(html); }); gmarkers.push(marker); side_bar_html += '<a href="javascript:myclick(' + (gmarkers.length-1) + ')">' + name + '<\/a><br>'; return marker; } function myclick(i) { GEvent.trigger(gmarkers[i], "click"); } var map = new GMap2(document.getElementById("map")); map.addControl(new GLargeMapControl()); map.addControl(new GMapTypeControl()); map.setCenter(new GLatLng( 43.907787,-79.359741), 9); GDownloadUrl("example.xml", function(doc) { var xmlDoc = GXml.parse(doc); var markers = xmlDoc.documentElement.getElementsByTagName("marker"); for (var i = 0; i < markers.length; i++) { // obtain the attribues of each marker var lat = parseFloat(markers[i].getAttribute("lat")); var lng = parseFloat(markers[i].getAttribute("lng")); var point = new GLatLng(lat,lng); var html = markers[i].getAttribute("html"); var label = markers[i].getAttribute("label"); var marker = createMarker(point,label,html); map.addOverlay(marker); } document.getElementById("side_bar").innerHTML = side_bar_html; }); } else { alert("Sorry, the Google Maps API is not compatible with this browser"); } //]]> </script>

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  • Deleting document attachments in CouchDb

    - by henrik_lundgren
    In CouchDb's documentation, the described method of deleting document attachments is to send a DELETE call to the attachment's url. However, I have noticed that if you edit the document and remove the attachment stub from the _attachment field, it will not be accessible anymore. If i remove foo.txt from the document below and save to CouchDb it will be gone the next time I access the document: { "_id":"attachment_doc", "_rev":1589456116, "_attachments": { "foo.txt": { "stub":true, "content_type":"text/plain", "length":29 } } } Is the attachment actually deleted on disk or is just the reference to it deleted?

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  • JavaFx MediaPlayer via HTTPS

    - by LMA
    I'm trying to make applet-videoplayer, that takes video files from PHP script via https. If source of data is httpS ://domain.com/1.flv - it works httpS ://domain.com/view.php - it doesn't work HTTP ://domain.com/view.php - it works again. In php I make HTTP header, that contains Content-type: video/x-flv Last-Modified: Wed, 14 Apr 2010 14:04:34 GMT Accept-Ranges: bytes Content-Length: 24693477 What else should I add in header to make it work? If I use not mediaPlayer, but MediaBox from samples, it writes "Loading", and keeps "rolling" locading image

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  • 1) PasswordResets emails user when requesting password reset

    - by Surge Pedroza
    I've been trying to add a password reset for users that forget their password. The users clicks on forgot password? on sign up page. Then the user types their email and clicks reset password, which creates a token and sends an email with a link to reset their password. For the most part, it was working well, and then it suddenly stopped working. When a user clicks password reset, it brings up the error message: Password cant be blank, password is too short(6 min) Ran into this error in video 275 How I Test. on 11:20 Failure/Error: click_button "Reset Password" ActiveRecord::RecordInvalid: Validation failed: Password can't be blank, Password is too short (minimum is 6 characters), Password confirmation can't be blank # ./app/models/user.rb:30:in send_password_reset' # ./app/controllers/password_resets_controller.rb:7:increate' # (eval):2:in click_button' # ./spec/requests/password_resets_spec.rb:9:inblock (2 levels) in ' Finished in 13.66 seconds 95 examples, 1 failure This is some of the code being used. user.rb # == Schema Information # # Table name: users # # id :integer not null, primary key # name :string(255) # email :string(255) # created_at :datetime not null # updated_at :datetime not null # class User < ActiveRecord::Base attr_accessible :name, :email, :password, :password_confirmation has_secure_password before_save { |user| user.email = email.downcase } before_save :create_remember_token validates :name, presence: true, length: { maximum: 50 } VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false } validates :password, presence: true, length: { minimum: 6 } validates :password_confirmation, presence: true def send_password_reset generate_token(:password_reset_token) self.password_reset_sent_at = Time.zone.now save! UserMailer.password_reset(self).deliver end def generate_token(column) begin self[column] = SecureRandom.urlsafe_base64 end while User.exists?(column => self[column]) end def self.search(search) if search find(:all, :conditions => ['name LIKE ?', "%#{search}%"]) else find(:all) end end private def create_remember_token self.remember_token = SecureRandom.urlsafe_base64 end end password_resets_controller.rb class PasswordResetsController < ApplicationController def new end def create user = User.find_by_email(params[:email]) user.send_password_reset redirect_to root_url, :notice => "Email sent with password reset instructions." end def edit @user = User.find_by_password_reset_token!(params[:id]) end end new.html.erb <h1>Reset Password</h1> <%= form_tag password_resets_path, :method => :post do %> <div class="field"> <%= label_tag :email %> <%= text_field_tag :email, params[:email] %> </div> <div class="actions"><%= submit_tag "Reset Password" %></div> <% end %>

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  • Rails: How can I log all requests which take more than 4s to execute?

    - by Fedyashev Nikita
    I have a web app hosted in a cloud environment which can be expanded to multiple web-nodes to serve higher load. What I need to do is to catch this situation when we get more and more HTTP requests (assets are stored remotely). How can I do that? The problem I see from this point of view is that if we have more requests than mongrel cluster can handle then the queue will grow. And in our Rails app we can only count only after mongrel will receive the request from balancer.. Any recommendations?

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  • MySQL - Update the same column twice

    - by uzioriluzan
    Hello, I need to update a column in a mysql table. If I do it in two steps as below, is the column "col" updated twice in the disk ? update table SET col=3*col, col=col+2; or is it written only once as in : update table SET col=3*col+2; Thanks

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  • Need advice on cron job'ing a very large process

    - by Arms
    I have a PHP script that grabs data from an external service and saves data to my database. I need this script to run once every minute for every user in the system (of which I expect to be thousands). My question is, what's the most efficient way to run this per user, per minute? At first I thought I would have a function that grabs all the user Ids from my database, iterate over the ids and perform the task for each one, but I think that as the number of users grow, this will take longer, and no longer fall within 1 minute intervals. Perhaps I should queue the user Ids, and perform the task individually for each one? In which case, I'm actually unsure of how to proceed. Thanks in advance for any advice.

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  • Is it safe to modify CCK tables by hand?

    - by LanguaFlash
    I'm not intimately familiar with CCK but I have a one-time custom setup and know that I could get some performance gains if I created indexes and changed the field type and length of some of the fields in my CCK table. Is it save to modify this table at all or will I end up destroying something in the process? Thanks

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  • Question about fwrite API

    - by michael
    Hi, In C++, there is a fwrite() which writes a buffer to a file on disk: http://www.cplusplus.com/reference/clibrary/cstdio/fwrite/ Can you please tell me if there is any buffer inside that fwrite implementation? i.e. if I call fwrite() multiple times (say 10 times), does it actually invoke file i/o 10 different times? Thank you.

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  • How to properly enque css in to wordpress

    - by wordpressm
    I am trying to en-queue css in worpress. Here is my code function amba_adding_styles() { wp_register_script( 'jquery-ui-css', 'http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css'); // Register the style like this for a plugin: wp_register_style( 'custom-style', plugins_url( '/css/custom-style.css', __FILE__ ), array(), '20120208', 'all' ); // For either a plugin or a theme, you can then enqueue the style: wp_enqueue_style( 'jquery-ui-css' ); // For either a plugin or a theme, you can then enqueue the style: wp_enqueue_style( 'custom-style' ); } add_action( 'wp_enqueue_scripts', 'amba_adding_styles' ); However, jquer-ui.css doesnt load. Can anybody guess the error here??

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  • Extract dates from filename(C#3.0)

    - by Newbie
    I have a situation where I need to extract dates from the file names whose general pattern is [filename_]YYYYMMDD[.fileExtension] e.g. "xxx_20100326.xls" or x2v_20100326.csv The below program does the work //Number of charecter in the substring is set to 8 //since the length of YYYYMMDD is 8 public static string ExtractDatesFromFileNames(string fileName) { return fileName.Substring(fileName.IndexOf("_") + 1, 8); } Is there any better option of achieving the same? I am basically looking for standard practice. I am using C#3.0 and dotnet framework 3.5 Thanks

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  • Why the generated key size is not constant?

    - by Tom Brito
    The following code prints randomly 634, 635, 636, each time I run it. Why its not constant? public static void main(String[] args) throws Exception { KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA", "BC"); keyPairGen.initialize(1024); RsaKeyPair keyPair = new RsaKeyPair(keyPairGen.generateKeyPair()); System.out.println(keyPair.getPrivate().getEncoded().length); }

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  • Arguments to JavaScript Anonymous Function

    - by Phonethics
    for (var i = 0; i < somearray.length; i++) { myclass.foo({'arg1':somearray[i][0]}, function() { console.log(somearray[i][0]); }); } How do I pass somearray or one of its indexes into the anonymous function ? somearray is already in the global scope, but I still get somearray[i] is undefined

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  • BST Level Traversal

    - by Dalton Conley
    Ok, so I'm trying to do a level order traversal of a binary search tree and its not working. The code below makes sense to me, but that is probably because I've been looking at it forever and I've convinced myself that it should work. void BST<T>::levelByLevel(ostream &out) { Queue<BinNodePointer> q; BinNodePointer subtreeRoot; if(myRoot == NULL) return; q.enqueue(myRoot); while(!q.empty()) { subtreeRoot = q.front(); out << subtreeRoot->data << " "; q.dequeue(); if(subtreeRoot->left != NULL) q.enqueue(subtreeRoot->left); if(subtreeRoot->right != NULL) q.enqueue(subtreeRoot->right); } } Maybe you guys could point out what I'm doing wrong because, although I understand the concept of a binary search tree, I'm not 100% on all the ins and outs.

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  • Xml with spaces as InnerText

    - by David Rutten
    I'm parsing Xml data which has entries like this: <item name="UserText" type_name="gh_string" type_code="10"> </item> I'm supposed to read the 6 spaces as a String, but both the InnerText and InnerXml values of the System.Xml.XmlNode are zero length Strings. Is there any way I can get at this whitespace data in existing files and what do I need to do in the future to prevent this sort of screw up?

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  • snmp and platform specific information

    - by reza
    I need to come with a strategy to use gather information about the health of my linux platform, hardware health such as high CPU temperature and may be disk space usage, etc... I know my examples are not very good ones. Essentially, I have an SNMP agent running on Linux and I need it to provide platform specific health and state information. Are there any Linux packages that do this, what MIBs to use, Dell Open Manager functionality??? Any thoughts and comments are appreciated.

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  • php convert images and upload to amazon s3

    - by faraklit
    I am looking for a best practice while uploading images to amazon s3 server and serving from there. We need four different sizes of an image. So just after image upload we convert the image and scale in 4 different widths and heights. And then we send them to the amazon s3 using official php api. // ... // image conversions, bucket setting, s3 initialization etc. $sizes= array("", "48", "64", "128"); foreach($sizes as $size) { $filename = $upload_path.$dest_file.$size.$ext; $s3->batch()->create_object($bucket, , array( 'fileUpload' => $filename, 'acl' => AmazonS3::ACL_PUBLIC, )); } But for a 1M image the client sometimes wait up to 30 seconds which is a very long time. Instead of sending images immediately to S3, it may be better to add them to a job queue. But the user should see the uploaded image immediately.

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  • Weird constants

    - by Quassnoi
    I've seen these in real code: #define SCREEN_DIMENSIONS 2 #define THREE_THOUSAND_FIVE_HUNDRED_TWENTY_TWO 3522 What is the weirdest constant you've ever seen? P. S. And of course my favorite in JScript: bool b; switch (b.ToString().length) { case 4: // true ... break; case 5: // false ... break; )

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