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Articles indexed Friday November 2 2012

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  • GNOME lock screen (screensaver) is missing music controls

    - by oleg
    I have a custom Ubuntu 12.10 configuration (started out as a minimal installation of Ubuntu 12.04 with a number of other packages such as Gnome Shell selectively installed via apt-get and then upgraded to 12.10). (Almost) everything works just fine. However, the lock screen (Gnome screensaver) does not expose a UI to control music playback. Whenever I have Rhythmbox running in the background I cannot pause music playback without unlocking the screen. Obviously some package(s) or configuration bits are not present but I am not able to figure out what needs to be added or done in order to enable playback control in the lock screen. Any idea what I might be missing? Ideally I would not like to install Ubuntu desktop only to get music controls in the Gnome lock screen.

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  • Target a specific Button and Style it

    - by CoffeeAddict
    I've got a button inside my div. The image is showing some kind of padding around it <div id="member-name" hidden="true"> <span><button id="expandButton"><img src="~/Content/Images/plus.jpg" /></button></span><p id="member-fullName"></p> </div> Not sure how to get rid of this issue, see the grey around that plus image..I want to get rid of that. Here's the image alone, see that there is nothing around it: here is my css (just various related snippets to all this): div { padding: 0px;} input[type="submit"], input[type="button"], button { background-color: #ffffff; cursor: pointer; font-size: 11px; font-weight: 600; padding: 0px; margin: 0px; width: auto; vertical-align: middle; } #member-name { margin: 30px 0px 0px 0px; height: 20px; font-weight: bold; color: white; padding: 1px 1px 0px 1px; background-color: #d28105; border: 1px solid darkgray; overflow: hidden; } #member-name.p { display: inline-block; } /* #member-name.input[type="submit"] { margin: 0px;padding: 0px; } - this does not work, probably wrong syntax anyway */

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  • Removing Duplicate Data From SQL Query Output For Display On A Web Page [migrated]

    - by doubleJ
    I had asked a similar question on stackoverflow but didn't really get anywhere. This page shows the output that I'm currently getting from my MSSQL server. I have a table of venue information (name, address, etc...) that our events happen on. Separately, I have a table of the actual events that are scheduled (an event may happen multiple times in one day and/or over multiple days). I join those tables with this query: <?php try { $dbh = new PDO("sqlsrv:Server=localhost;Database=Sermons", "", ""); $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = "SELECT TOP (100) PERCENT dbo.TblSermon.Day, dbo.TblSermon.Date, dbo.TblSermon.Time, dbo.TblSermon.Speaker, dbo.TblSermon.Series, dbo.TblSermon.Sarasota, dbo.TblSermon.NonFlc, dbo.TblJoinSermonLocation.MeetingName, dbo.TblLocation.Location, dbo.TblLocation.Pastors, dbo.TblLocation.Address, dbo.TblLocation.City, dbo.TblLocation.State, dbo.TblLocation.Zip, dbo.TblLocation.Country, dbo.TblLocation.Phone, dbo.TblLocation.Email, dbo.TblLocation.WebAddress FROM dbo.TblLocation RIGHT OUTER JOIN dbo.TblJoinSermonLocation ON dbo.TblLocation.ID = dbo.TblJoinSermonLocation.Location RIGHT OUTER JOIN dbo.TblSermon ON dbo.TblJoinSermonLocation.Sermon = dbo.TblSermon.ID WHERE (dbo.TblSermon.Date >= { fn NOW() }) ORDER BY dbo.TblSermon.Date, dbo.TblSermon.Time"; $stmt = $dbh->prepare($sql); $stmt->execute(); $stmt->setFetchMode(PDO::FETCH_ASSOC); foreach ($stmt as $row) { echo "<pre>"; print_r($row); echo "</pre>"; } unset($row); $dbh = null; } catch(PDOException $e) { echo $e->getMessage(); } ?> So, as it loops through the query results, it creates an array for each record and ends up like this: Array ( [Day] => Tuesday [Date] => 2012-10-30 00:00:00.000 [Time] => 07:00 PM [Speaker] => Keith Moore [Location] => The Ark Church [Pastors] => Alan & Joy Clayton [Address] => 450 Humble Tank Rd. [City] => Conroe [State] => TX [Zip] => 77305.0 [Phone] => (936) 756-1988 [Email] => [email protected] [WebAddress] => http://www.thearkchurch.org ) Array ( [Day] => Wednesday [Date] => 2012-10-31 00:00:00.000 [Time] => 07:00 PM [Speaker] => Keith Moore [Location] => The Ark Church [Pastors] => Alan & Joy Clayton [Address] => 450 Humble Tank Rd. [City] => Conroe [State] => TX [Zip] => 77305.0 [Phone] => (936) 756-1988 [Email] => [email protected] [WebAddress] => http://www.thearkchurch.org ) Array ( [Day] => Tuesday [Date] => 2012-11-06 00:00:00.000 [Time] => 07:00 PM [Speaker] => Keith Moore [Location] => Fellowship Of Faith Christian Center [Pastors] => Michael & Joan Kalstrup [Address] => 18999 Hwy. 59 [City] => Oakland [State] => IA [Zip] => 51560.0 [Phone] => (712) 482-3455 [Email] => [email protected] [WebAddress] => http://www.fellowshipoffaith.cc ) Array ( [Day] => Wednesday [Date] => 2012-11-14 00:00:00.000 [Time] => 07:00 PM [Speaker] => Keith Moore [Location] => Faith Family Church [Pastors] => Michael & Barbara Cameneti [Address] => 8200 Freedom Ave NW [City] => Canton [State] => OH [Zip] => 44720.0 [Phone] => (330) 492-0925 [Email] => [WebAddress] => http://www.myfaithfamily.com ) As you can see, The Ark Church and its associated contact information is duplicated, so when I work with those arrays and output them to the page, I see a bunch of duplicate content. I'd like to remove the duplicate information so that I get results similar to this: The Ark Church Alan & Joy Clayton 450 Humble Tank Rd. Conroe, TX 77305 (936) 756-1988 [email protected] http://www.thearkchurch.org Meetings: Tuesday, 2012-10-30 07:00 PM Wednesday, 2012-10-31 07:00 PM Fellowship Of Faith Christian Center Michael & Joan Kalstrup 18999 Hwy. 59 Oakland, IA 51560 (712) 482-3455 [email protected] http://www.fellowshipoffaith.cc Meetings: Tuesday, 2012-11-06 07:00 PM Faith Family Church Michael & Barbara Cameneti 8200 Freedom Ave NW Canton, OH 44720 (330) 492-0925 http://www.myfaithfamily.com Meetings: Wednesday, 2012-11-14 07:00 PM It doesn't necessarily have to end up like that (I'm not looking for code specific for these results, but a concept of how to not show the duplicated information). I'm assuming that an additional foreach or while will do it, but I haven't figured out any logic that says <?php if ($location == $previouslocation) echo ""; ?>.

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  • SDL_image & OpenGL Problem

    - by Dylan
    i've been following tutorials online to load textures using SDL and display them on a opengl quad. but ive been getting weird results that no one else on the internet seems to be getting... so when i render the texture in opengl i get something like this. http://www.kiddiescissors.com/after.png when the original .bmp file is this: http://www.kiddiescissors.com/before.bmp ive tried other images too, so its not that this particular image is corrupt. it seems like my rgb channels are all jumbled or something. im pulling my hair out at this point. heres the relevant code from my init() function if ( SDL_Init(SDL_INIT_VIDEO) != 0 ) { return 1; } SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 ); SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 ); SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 ); SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 ); SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 4); SDL_SetVideoMode(WINDOW_WIDTH, WINDOW_HEIGHT, 32, SDL_HWSURFACE | SDL_GL_DOUBLEBUFFER | SDL_OPENGL); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(50, (GLfloat)WINDOW_WIDTH/WINDOW_HEIGHT, 1, 50); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glEnable(GL_DEPTH_TEST); glEnable(GL_MULTISAMPLE); glEnable(GL_TEXTURE_2D); glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); heres the code that is called when my main player object (the one with which this sprite is associated) is initialized texture = 0; SDL_Surface* surface = IMG_Load("i.bmp"); glGenTextures(1, &texture); glBindTexture(GL_TEXTURE_2D, texture); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, surface->w, surface->h, 0, GL_RGB, GL_UNSIGNED_BYTE, surface->pixels); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); SDL_FreeSurface(surface); and then heres the relevant code from my display function glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); glColor4f(1, 1, 1, 1); glPushMatrix(); glBindTexture(GL_TEXTURE_2D, texture); glTranslatef(getCenter().x, getCenter().y, 0); glRotatef(getAngle()*(180/M_PI), 0, 0, 1); glTranslatef(-getCenter().x, -getCenter().y, 0); glBegin(GL_QUADS); glTexCoord2f(0, 0); glVertex3f(getTopLeft().x, getTopLeft().y, 0); glTexCoord2f(0, 1); glVertex3f(getTopLeft().x, getTopLeft().y + size.y, 0); glTexCoord2f(1, 1); glVertex3f(getTopLeft().x + size.x, getTopLeft().y + size.y, 0); glTexCoord2f(1, 0); glVertex3f(getTopLeft().x + size.x, getTopLeft().y, 0); glEnd(); glPopMatrix(); let me know if i left out anything important... or if you need more info from me. thanks a ton, -Dylan

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  • How to convert pitch and yaw to x, y, z rotations?

    - by Aaron Anodide
    I'm a beginner using XNA to try and make a 3D Asteroids game. I'm really close to having my space ship drive around as if it had thrusters for pitch and yaw. The problem is I can't quite figure out how to translate the rotations, for instance, when I pitch forward 45 degrees and then start to turn - in this case there should be rotation being applied to all three directions to get the "diagonal yaw" - right? I thought I had it right with the calculations below, but they cause a partly pitched forward ship to wobble instead of turn.... :( So my quesiton is: how do you calculate the X, Y, and Z rotations for an object in terms of pitch and yaw? Here's current (almost working) calculations for the Rotation acceleration: float accel = .75f; // Thrust +Y / Forward if (currentKeyboardState.IsKeyDown(Keys.I)) { this.ship.AccelerationY += (float)Math.Cos(this.ship.RotationZ) * accel; this.ship.AccelerationX += (float)Math.Sin(this.ship.RotationZ) * -accel; this.ship.AccelerationZ += (float)Math.Sin(this.ship.RotationX) * accel; } // Rotation +Z / Yaw if (currentKeyboardState.IsKeyDown(Keys.J)) { this.ship.RotationAccelerationZ += (float)Math.Cos(this.ship.RotationX) * accel; this.ship.RotationAccelerationY += (float)Math.Sin(this.ship.RotationX) * accel; this.ship.RotationAccelerationX += (float)Math.Sin(this.ship.RotationY) * accel; } // Rotation -Z / Yaw if (currentKeyboardState.IsKeyDown(Keys.K)) { this.ship.RotationAccelerationZ += (float)Math.Cos(this.ship.RotationX) * -accel; this.ship.RotationAccelerationY += (float)Math.Sin(this.ship.RotationX) * -accel; this.ship.RotationAccelerationX += (float)Math.Sin(this.ship.RotationY) * -accel; } // Rotation +X / Pitch if (currentKeyboardState.IsKeyDown(Keys.F)) { this.ship.RotationAccelerationX += accel; } // Rotation -X / Pitch if (currentKeyboardState.IsKeyDown(Keys.D)) { this.ship.RotationAccelerationX -= accel; } I'm combining that with drawing code that does a rotation to the model: public void Draw(Matrix world, Matrix view, Matrix projection, TimeSpan elsapsedTime) { float seconds = (float)elsapsedTime.TotalSeconds; // update velocity based on acceleration this.VelocityX += this.AccelerationX * seconds; this.VelocityY += this.AccelerationY * seconds; this.VelocityZ += this.AccelerationZ * seconds; // update position based on velocity this.PositionX += this.VelocityX * seconds; this.PositionY += this.VelocityY * seconds; this.PositionZ += this.VelocityZ * seconds; // update rotational velocity based on rotational acceleration this.RotationVelocityX += this.RotationAccelerationX * seconds; this.RotationVelocityY += this.RotationAccelerationY * seconds; this.RotationVelocityZ += this.RotationAccelerationZ * seconds; // update rotation based on rotational velocity this.RotationX += this.RotationVelocityX * seconds; this.RotationY += this.RotationVelocityY * seconds; this.RotationZ += this.RotationVelocityZ * seconds; Matrix translation = Matrix.CreateTranslation(PositionX, PositionY, PositionZ); Matrix rotation = Matrix.CreateRotationX(RotationX) * Matrix.CreateRotationY(RotationY) * Matrix.CreateRotationZ(RotationZ); model.Root.Transform = rotation * translation * world; model.CopyAbsoluteBoneTransformsTo(boneTransforms); foreach (ModelMesh mesh in model.Meshes) { foreach (BasicEffect effect in mesh.Effects) { effect.World = boneTransforms[mesh.ParentBone.Index]; effect.View = view; effect.Projection = projection; effect.EnableDefaultLighting(); } mesh.Draw(); } }

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  • Level designing with Cocos2d and Box2d

    - by Majster
    I want to learn how to make levels using cocos2d and box2d (for iOS). I am talking about a 2d platformer such as Limbo or Braid or something like that. How can I design and build levels like this? I have seen Level Helper for cocos2d but its not free and I don't think it makes physic objects for box2d. How is this accomplished in real games? How to make camera move with character and so on. Any starting points would be much appreciated.

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  • How to set per-script upload_max_filesize limit?

    - by Ilya Muromets
    I have the following issue: How to set per-script upload_max_filesize limit? I want to set a larger upload max filesize limit for a particular script (action). I know I could use .htaccess, but the problem is that all actions are being dispatched via single index.php file, which likely means for all actions .htaccess rules are the same. So is it possible to set a per-script max_upload_size for a single php script (action)? Hope, you will be able to help me. Thanks in advance.

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  • Generating ul from array with php fails

    - by Toni Michel Caubet
    Given a $files array I am trying to generate a list, like this: <ul class=""> <? for($i=0;$i < count($files); $i++) { $text = str_replace("http://domain.com/files/uploads/", "", $files[$i]); $file = $files[$i]; $notme = sesion()>0 && $obj['id'] != sesion(); ?> <li> <a target="_blank" href="<?=$file?>"><?=$text?></a> <? if($notme){ ?> <span class="add_to_files" data-file="<?=$file?>">Agregar al gestor</span> <? } ?> </li> <? } ?> </ul> This is the output: Please note how the span html is wrong, <ul class=""> <li> <a href="http://domain.com/files/uploads/388400967232883.jpg" target="_blank">388400967232883.jpg</a> <span target="_blank" href="http://domain.com/files/uploads/388400967232883.jpg" url"="" data-file="&lt;a class=" class="add_to_files">http://domain.com/files/uploads/388400967232883.jpg"&gt;Agregar al gestor</span> </li> </ul> Any idea why?

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  • Java init method

    - by Johan Sjöberg
    What's a good way to make sure an init method is invoked in java? The alternatives I see are Don't test it, let the method fail by itself, likely by a NullPointerException Test if method was initialized or throw public void foo() { if (!inited) { throw new IllegalArgumentException("not initalized"); } ... } Delagate public void foo() { if (!inited) { throw new IllegalArgumentException("not initalized"); } fooInternal(); } private void fooInternal(){ ... }; Always init, and make init a noop otherwise public void foo() { init(); ... } public void init() { if(!inited) { ... } } Silently init public void foo() { if (!inited) { init(); } ... } Most of these approaches are very verbose and decreases overall readability.

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  • jquery on click sibling selection

    - by Deviland
    I generate a Table from a database to look like this <table id="items"> <thead> <tr> <th>Details</th> <th>Goldmine ID</th> <th>&nbsp;</th> </tr> </thead> <tbody> <tr> <td class="evenrow">This is a test Description generated through UNIT Tests for the category description</td> <td class="evenrow"><input type="text" value="" id="106" class="gminput"></td> <td class="butCell evenrow"><button class="saveButton updateitem">Update</button></td> </tr> <tr> <td class="oddrow">This is a test Description generated through UNIT Tests for the category description</td> <td class="oddrow"><input type="text" value="" id="107" class="gminput"></td> <td class="butCell oddrow"><button class="saveButton updateitem">Update</button></td> </tr> <tr> <td class="evenrow">This is a test Description generated through UNIT Tests for the category description</td> <td class="evenrow"><input type="text" value="" id="108" class="gminput"></td> <td class="butCell oddrow"><button class="saveButton updateitem">Update</button></td> </tr> </tbody> </table> I am trying to get the input box value and id returned by the relevant row's button click so far I have tried this but failed $('body').on('click', '.updateitem', function(event) { event.preventDefault(); $(this).parent().siblings().forEach(function(index) { alert(($(this).val())); }); var par = sib.parent('td'); par.addClass('redBorder'); });

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  • Error 500 on template.render() with jinja2

    - by Asperitas
    I am working on playing with some Python to create a webapp. At first I put the HTML in a string, using %s to fill certain elements. That all worked perfectly. Now I want to put the HTML in a template, so I followed this tutorial. My code looks like this (I deleted irrelevant code for this error): import codecs import cgi import os import jinja2 jinja_environment = jinja2.Environment(loader=jinja2.FileSystemLoader(os.path.join(os.path.dirname(__file__)))) class Rot13Handler(webapp2.RequestHandler): def get(self): template = jinja_environment.get_template('rot13.html') self.response.out.write(template.render({'text': ''})) When I replace just template.render({'text': ''}) a random string, the program works fine. I did add the latest jinja2 library to my app.yaml, and naturally my rot13.html does exist with the {{ text }} added. So could anyone please help me in the right direction? I don't know why it's going wrong.

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  • not able to close other opened tab in browser

    - by tulsi
    hi please check the below code i am trying to open tab with name and after that try to close that tab but unable to close or else can anyone tell how we can close opened all tab (url1,url2) from parent tab (url) while close parent tab error in firebug is my_window is undefined <form name="submitForm1" target="my_window" method="POST" action="http://localhost:8080/ADDMIBREP/"> <input type="hidden" name="uname" value="uname"> <a HREF="javascript:document.submitForm1.submit();">ADDMIBREPORT</a> </form> <a HREF="javascript: closepopup() ">remove</a> </body> <script> function closepopup() { alert("hi"); if(false == my_window.closed) { my_window.close (); } else { alert('Window already closed!'); } } <script>

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  • HTML overflow:hidden doesn't format text correctly

    - by Rens Groenveld
    I'm working on a website for an American Football team. They have these newsitems on their front page which they can manage through a CMS system. I have a problem with alligning the text inside those news items. Two of the news items look like this: As you can see, the right newsitem text are displayed nicely. But the left cuts it off really bad. You can only see the top half of the text at the last sentence. I use overflow: hidden; to make sure the text doesn't make the div or newsitem bigger. Does anyone have any idea how to solve this through HTML and CSS or should I cut it off serverside with PHP? Here's my code (HTML): <div class="newsitem"> <div class="titlemessagewrapper"> <h2 class="titel" align="center"><?php echo $row['homepagetitel']; ?></h2> <div class="newsbericht"> <?php echo $row['homepagebericht']; ?> </div> </div> <div class="newsfooter"> <span class="footer_author"><a href=""><?php echo get_gebruikersnaam_by_id($row['poster_id']); ?></a></span> <span class="footer_comment"><a href="">Comments <span>todo</span></a></span> <a href="" class="footer_leesmeer">Lees meer</a> </div> </div> And here is the CSS: .newsitem{ float: left; height: 375px; width: 296px; margin: 20px 20px 0px 20px; background-color: #F5F5F5; } .newsitem .titel{ color:#132055; font-size:1.2em; line-height:1.3em; font-weight:bold; margin:10px 5px 5px 5px; padding:0 0 6px 0; border-bottom:1px dashed #9c0001; } .titlemessagewrapper{ height: 335px; overflow: hidden; } .newsitem .newsbericht{ padding:5px 5px 5px 5px; font-size: 0.8em; margin-bottom: 5px; } .newsitem .newsfooter{ width: 100%; height: 25px; background-color: #132055; margin: 0px auto; font-size: 0.8em; padding-top: 5px; margin-top: 10px; border: 1px solid #9c0001; }

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  • pyramid - How to handle complex URL in a elegant way?

    - by Lingfeng Xiong
    I'm writing a admin website which control several websites with same program and database schema but different content. The URL I designed like this: http://example.com/site A list of all sites which under control http://example.com/site/{id} A brief overview of select site with ID id http://example.com/site/{id}/user User list of target site http://example.com/site/{id}/item A list of items sold on target site http://example.com/site/{id}/item/{iid} Item detailed information # ...... something similar As you can see, nearly all URL are need the site_id. And in almost all views, I have to do some common jobs like query Site model against database with the site_id. Also, I have to pass site_id whenever I invoke request.route_path. So... is there anyway for me to make my life easier? Thanks in advance.

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  • How can I use PHP Mail() function within PHP-FPM? On Nginx?

    - by TheBlackBenzKid
    I have searched everywhere for this and I really want to resolve this. In the past I just end up using an SMTP service like SendGrid for PHP and a mailing plugin like SwiftMailer. However I want to use PHP. Basically my setup (I am new to server setup, and this is my personal setup following a tutorial) Nginx Rackspace Cloud PHP 5.3 PHP-FPM Ubuntu 11.04 My phpinfo() returns this about the Mail entries: mail.log no value mail.add_x_header On mail.force_extra_parameters no value sendmail_from no value sendmail_path /usr/sbin/sendmail -t -i SMTP localhost smtp_port 25 Can someone help me to as why Mail() will not work - my script is working on all other sites, it is a normal mail command. Do I need to setup logs or enable some PHP port on the server? My Sample script <? # FORMS VARS // $to = $customers_email; // $to = $customers_email; $to = $_GET["customerEmailFromForm"]; $subject = "Thank you for contacting Real-Domain.com"; $message = " <html> <head> </head> <body> Thanks, your message was sent and our team will be in touch shortly. <img src='http://cdn.com/emails/thank_you.jpg' /> </body> </html> "; $headers = "MIME-Version: 1.0" . "\r\n"; $headers .= "Content-type:text/html;charset=iso-8859-1" . "\r\n"; $headers .= 'From: <[email protected]>' . "\r\n"; // SEND MAIL mail($to,$subject,$message,$headers); ?> Thanks

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  • How does Read-Only affect a Directory?

    - by ispiro
    I've found that I can write (say, copy a file into) a Read-Only directory. That is, a Directory with ...Attributes = FileAttributes.ReadOnly.I can even change its name. The only thing I've found that can't be done is to delete it. Is that really the only thing that ReadOnly prevents? EDIT: Here's the code: (The Directory is empty.) (new DirectoryInfo(path)).Attributes = FileAttributes.ReadOnly; Directory.Delete(path); It throws an Access to the path 'c:\... is denied. exception. But after changing ReadOnly to Normal it works fine. So what does a ReadOnly prevent, and what doesn't it prevent?

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  • ProgressBar while transferring data from Excel sheet to SQL database table

    - by Sagar patel
    Can anyone tell me how to show animated progress bar while the data from an Excel sheet to a SQL database table is being transfered? I have a form in .aspx page. In that form, there is one FileUpload control that uploads an Excel file. While uploading that file and saving it on the server at the same time I'm transferring the data from the Excel sheet to a SQL table. During this transfer, I want to show a ProgressBar and after transferring all data it will be removed automatically.. Is there something I can do to achieve this?

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  • Traversable => Java Iterator

    - by Andres
    I have a Traversable, and I want to make it into a Java Iterator. My problem is that I want everything to be lazily done. If I do .toIterator on the traversable, it eagerly produces the result, copies it into a List, and returns an iterator over the List. I'm sure I'm missing something simple here... Here is a small test case that shows what I mean: class Test extends Traversable[String] { def foreach[U](f : (String) => U) { f("1") f("2") f("3") throw new RuntimeException("Not lazy!") } } val a = new Test val iter = a.toIterator

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  • Python parsing error message functions

    - by user1716168
    The code below was created by me with the help of many SO veterans: The code takes an entered math expression and splits it into operators and operands for later use. I have created two functions, the parsing function that splits, and the error function. I am having problems with the error function because it won't display my error messages and I feel the function is being ignored when the code runs. An error should print if an expression such as this is entered: 3//3+4,etc. where there are two operators together, or there are more than two operators in the expression overall, but the error messages dont print. My code is below: def errors(): numExtrapolation,opExtrapolation=parse(expression) if (len(numExtrapolation) == 3) and (len(opExtrapolation) !=2): print("Bad1") if (len(numExtrapolation) ==2) and (len(opExtrapolation) !=1): print("Bad2") def parse(expression): operators= set("*/+-") opExtrapolate= [] numExtrapolate= [] buff=[] for i in expression: if i in operators: numExtrapolate.append(''.join(buff)) buff= [] opExtrapolate.append(i) opExtrapolation=opExtrapolate else: buff.append(i) numExtrapolate.append(''.join(buff)) numExtrapolation=numExtrapolate #just some debugging print statements print(numExtrapolation) print("z:", len(opExtrapolation)) return numExtrapolation, opExtrapolation errors() Any help would be appreciated. Please don't introduce new code that is any more advanced than the code already here. I am looking for a solution to my problem... not large new code segments. Thanks.

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  • Visual Studio 2012 crashes everytime I try to debug with error CLR20r3

    - by Chris
    Everytime I try to debug one of my apps I get the below error message. Anyone have any ideas? I tried running Visual Studio in safe mode but I get the same thing. I also tried to repair the install and completely reinstall it with no luck :(. The full Problem Signature is this: Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: devenv.exe Problem Signature 02: 11.0.50727.1 Problem Signature 03: 5011ecaa Problem Signature 04: Microsoft.IntelliTrace.Package.11.0.0 Problem Signature 05: 11.0.50727.1 Problem Signature 06: 5011dad8 Problem Signature 07: 311 Problem Signature 08: 1f1 Problem Signature 09: System.AccessViolationException OS Version: 6.1.7601.2.1.0.256.48 Locale ID: 1033 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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  • Update Related Entity Of Detached Entity

    - by Hemslingo
    I'm having an issue updating an entity with multiple related entities. I've got a very simple model which consists of an article entity and a list of categories the article can be related to. You can choose from a check box list which of these categories are associated to it...which works fine. The problem crops up when I actually come to update an existing entity using the dbContext. As I am updating this entity, I have already detached it from the context ready to re-attach it later so the update can execute properly. I can see that after I posting the model, the category(s) are being added to the article entity just fine and it looks like it updates in the repository with no errors occurring. When I look in the database the article has updated as normal but the category(s) have not. Here is my (simplified) update code... public virtual bool Attach(T entity) { _dbContext.Entry(entity).State = EntityState.Modified; _dbSet.Attach(entity); return this.Commit(); } Any help will be much appreciated.

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  • How to change a Linux user password from python

    - by Vaulor
    I'm having problems with changing a Linux user's password from python. I've tried so many things, but I couldn't manage to solve the issue, here is the sample of things I've already tried: sudo_password is the password for sudo, sudo_command is the command I want the system to run, user is get from a List and is the user who I want to change the password for, and newpass is the pass I want to assign to 'user' user = list.get(ANCHOR) sudo_command = 'passwd' f = open("passwordusu.tmp", "w") f.write("%s\n%s" % (newpass, newpass)) f.close() A=os.system('echo -e %s|sudo -S %s < %s %s' % (sudo_password, sudo_command,'passwordusu.tmp', user)) print A windowpass.destroy() 'A' is the return value for the execution of os.system, in this case 256. I tried also A=os.system('echo %s|sudo -S %s < %s %s' % (sudo_password, sudo_command,'passwordusu.tmp', user)) but it returns the same error code. I tried several other ways with 'passwd' command, but whithout succes. With 'chpasswd' command I 've tried this: user = list.get(ANCHOR) sudo_command = 'chpasswd' f = open("passwordusu.tmp", "w") f.write("%s:%s" % (user, newpass)) f.close() A=os.system('echo %s|sudo -S %s < %s %s' % (sudo_password, sudo_command,'passwordusu.tmp', user)) print A windowpass.destroy() also with: A=os.system('echo %s|sudo -S %s:%s|%s' % (sudo_password, user, newpass, sudo_command)) @;which returns 32512 A=os.system("echo %s | sudo -S %s < \"%s\"" % (sudo_password, sudo_command, "passwordusu.tmp")) @;which returns 256 I tried 'mkpasswd' and 'usermod' too like this: user = list.get(ANCHOR) sudo_command = 'mkpasswd -m sha-512' os.system("echo %s | sudo -S %s %s > passwd.tmp" % (sudo_password,sudo_command, newpass)) sudo_command="usermod -p" f = open('passwd.tmp', 'r') for line in f.readlines(): newpassencryp=line f.close() A=os.system("echo %s | sudo -S %s %s %s" % (sudo_password, sudo_command, newpassencryp, user)) @;which returns 32512 but, if you go to https://www.mkpasswd.net , hash the 'newpass' and substitute for 'newpassencryp', it returns 0 which theoretically means it has gone right, but so far it doesn't changes the password. I've searched on internet and stackoverflow for this issue or similar and tried what solutions exposed, but again,without success. I would really apreciate any help, and of course, if you need more info i'll be glad to supply it! Thanks in advance.

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  • CSS :after pseudo element on INPUT field

    - by matra
    I am trying to use :after CSS pseudo element on INPUT field, but it does not work. If I use it with SPAN, it works OK. <style type="text/css"> .mystyle:after {content:url(smiley.gif);} .mystyle {color:red;} </style> This works (puts the smily after "buu!" and berfore "some more") <span class="mystyle">buuu!</span>a some more This does not work - it only color someValue in red, but there is no smiley. <input class="mystyle" type="text" value="someValue"> What am I doing wrong? should I use another pseudo selector. Note: I can not add SPAN sround my INPUT; because it is being generated by a third party control. Matraj

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  • Free Team Foundation Service a Boon for Play Projects

    - by Ken Cox [MVP]
    My ‘jump in and sink or swim’ learning style leads me to create dozens of unbillable ‘play’ projects in Visual Studio 2012.  For example, I’m currently learning to customize the powerful auction/fixed price/classifieds software called AuctionWorx Enterprise.  I make stupid mistakes as I grasp a new API and configure projects. It’s frustrating to go down a rat hole and discover the VS IDE’s Undo doesn’t reach back to a working build from the previous weekend. Enter Visual Studio’s Free Team Foundation Service.  Put your play projects into the free source control and check in (or shelve) a snapshot before embarking on something risky. (I already use Discount ASP.NET’s Team Foundation Server hosting for client projects so there’s zero TFS/VS learning curve for me and first class GUI support.) TFS is free right now for teams of five or fewer. I’m not naive enough to expect ‘free’ to last forever. So, it’ll be interesting to see how much Microsoft intends to charge in 2013 for TFS. In the meantime, why not grab some free source code storage? BTW, it’s weird to realize that Microsoft is backing up my junky little playtime code on three physically-distinct servers every day - and taking incremental backups every hour.

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