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• Fetch request error: no entity? Probably easy, but help!

  - by cksubs

  Hi, I'm going through the Stanford iPhone course. I'm on the second Paparazzi assignment. I'm getting this error: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'executeFetchRequest:error: A fetch request must have an entity.' I've copied a lot of the code from this walkthrough site. Running his source code works perfectly, and at this point my code is pretty much exactly the same as his. But it throws that error. See below for the relavent bits: // Create FetchRequest NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Person" inManagedObjectContext:context]; [request setEntity:entity]; // Set the sort descriptor NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"personName" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [request setSortDescriptors:sortDescriptors]; [sortDescriptors release]; [sortDescriptor release]; // set up NSFetchedResultsController to hold the fetch NSFetchedResultsController *frc = [[NSFetchedResultsController alloc] initWithFetchRequest:request managedObjectContext:context sectionNameKeyPath:nil cacheName:@"personCache"]; // execute the fetch NSError *error; NSLog(@"Prints Here"); [frc performFetch:&error]; NSLog(@"Doesn't Print Here"); I'm clearly setting the entity with [request setEntity:entity]. So the error has me stumped. Is there something I'm missing? Maybe in another file? I don't know. I'm still so confused with Objective-C.... Thanks.

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• This codes in Actionscript-2, Can anyone help me translate it into AS-3 please ?.......a newby pulli

  - by Spux

  this.createEmptyMovieClip('mask_mc',0); bg_mc.setMask(mask_mc); var contor:Number=0; // function drawCircle draws a circle on mask_mc MovieClip of radius r and having center to mouse coordinates function drawCircle(mask_mc:MovieClip):Void{ var r:Number = 20; var xcenter:Number = _xmouse; var ycenter:Number = _ymouse; var A:Number = Math.tan(22.5 * Math.PI/180); var endx:Number; var endy:Number; var cx:Number; var cy:Number; mask_mc.beginFill(0x000000, 100); mask_mc.moveTo(xcenter+r, ycenter); for (var angle:Number = Math.PI/4; angle<=2*Math.PI; angle += Math.PI/4) { xend = r*Math.cos(angle); yend = r*Math.sin(angle); xbegin =xend + r* A *Math.cos((angle-Math.PI/2)); ybegin =yend + r* A *Math.sin((angle-Math.PI/2)); mask_mc.curveTo(xbegin+xcenter, ybegin+ycenter, xend+xcenter, yend+ycenter); } mask_mc.endFill(); } // contor variable is used to hold if the mouse is pressed (contor is 1) or not (contor is 0) this.onMouseDown=function(){ drawCircle(mask_mc); contor=1; } // if the mouse is hold and moved then we draw a circle on the mask_mc this.onMouseMove=this.onEnterFrame=function(){ if (contor==1){ drawCircle(mask_mc); } } this.onMouseUp=function(){ contor=0; }

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• What freeware/floss tools are available to help load data into SPSS?

  - by tardate

  I'm looking for a solution for producing SPSS format data files for loading into SPSS. The few offerings I can find are all commercial. Has anyone experience with generating SPSS-format data files using open-source, freeware or home-grown solutions? I'm not even sure that the file format is "open". Any hints appreciated (any language is fine, although java, perl or ruby preferred).

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• Help a C# developer understand: What is a monad?

  - by Charlie Flowers

  There is a lot of talk about monads these days. I have read a few articles / blog posts, but I can't go far enough with their examples to fully grasp the concept. The reason is that monads are a functional language concept, and thus the examples are in languages I haven't worked with (since I haven't used a functional language in depth). I can't grasp the syntax deeply enough to follow the articles fully ... but I can tell there's something worth understanding there. However, I know C# pretty well, including lambda expressions and other functional features. I know C# only has a subset of functional features, and so maybe monads can't be expressed in C#. However, surely it is possible to convey the concept? At least I hope so. Maybe you can present a C# example as a foundation, and then describe what a C# developer would wish he could do from there but can't because the language lacks functional programming features. This would be fantastic, because it would convey the intent and benefits of monads. So here's my question: What is the best explanation you can give of monads to a C# 3 developer? Thanks! (EDIT: By the way, I know there are at least 3 "what is a monad" questions already on SO. However, I face the same problem with them ... so this question is needed imo, because of the C#-developer focus. Thanks.)

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• Can you help me think of problems for my programming language?

  - by I can't tell you my name.

  I've created an experimental toy programming language with a (now) working interpreter. It is turing-complete and has a pretty low-level instruction set. Even if everything takes four to six times more code and time than in PHP, Python or Ruby I still love programming all kinds of things in it. So I got the "basic" things that are written in many languages working: Hello World Input - Output Countdowns (not as easy as you think as there are no loops) Factorials Array emulation 99 Bottles of Beer (simple, wrong inflection) 99 Bottles of Beer (canonical) Conjatz conjecture Quine (that was a fun one!) Brainf*ck interpreter (To proof turing-completeness, made me happy) So I implemented all of the above examples because: They all used many different aspects of the language They are pretty interesting They don't take hours to write Now my problem is: I've run out of ideas! I don't find any more examples of what problems I could solve using my language. Do you have any programming problems which fit into some of the criteria above for me to work out?

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• trying to make this code less messy in android, can anyone help?

  - by clayton33

  i know that there must be a simpler way of doing this, i just don't understand how java works well enough, and i am struggling. could someone perhaps point me in the right direction? ImageButton image = (ImageButton) findViewById(R.id.card1); ImageButton image2 = (ImageButton) findViewById(R.id.card2); ImageButton image3 = (ImageButton) findViewById(R.id.card3); ImageButton image4 = (ImageButton) findViewById(R.id.card4); ImageButton image5 = (ImageButton) findViewById(R.id.card5); ImageButton image6 = (ImageButton) findViewById(R.id.card6); ImageButton image7 = (ImageButton) findViewById(R.id.card7); ImageButton image8 = (ImageButton) findViewById(R.id.card8); ImageButton image9 = (ImageButton) findViewById(R.id.card9); ImageButton image10 = (ImageButton) findViewById(R.id.card10); ImageButton image11 = (ImageButton) findViewById(R.id.card11); ImageButton image12 = (ImageButton) findViewById(R.id.card12); ImageButton image13 = (ImageButton) findViewById(R.id.card13); ImageButton image14 = (ImageButton) findViewById(R.id.card14); ImageButton image15 = (ImageButton) findViewById(R.id.card15); //image.setImageResource(R.drawable.test2); Bitmap bMap = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled = Bitmap.createScaledBitmap(bMap, buttonSize, buttonSize, true); Bitmap bMap2 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled2 = Bitmap.createScaledBitmap(bMap2, buttonSize, buttonSize, true); Bitmap bMap3 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled3 = Bitmap.createScaledBitmap(bMap3, buttonSize, buttonSize, true); Bitmap bMap4 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled4 = Bitmap.createScaledBitmap(bMap4, buttonSize, buttonSize, true); Bitmap bMap5 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled5 = Bitmap.createScaledBitmap(bMap5, buttonSize, buttonSize, true); Bitmap bMap6 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled6 = Bitmap.createScaledBitmap(bMap6, buttonSize, buttonSize, true); Bitmap bMap7 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled7 = Bitmap.createScaledBitmap(bMap7, buttonSize, buttonSize, true); Bitmap bMap8 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled8 = Bitmap.createScaledBitmap(bMap8, buttonSize, buttonSize, true); Bitmap bMap9 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled9 = Bitmap.createScaledBitmap(bMap9, buttonSize, buttonSize, true); Bitmap bMap10 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled10 = Bitmap.createScaledBitmap(bMap10, buttonSize, buttonSize, true); Bitmap bMap11 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled11 = Bitmap.createScaledBitmap(bMap11, buttonSize, buttonSize, true); Bitmap bMap12 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled12 = Bitmap.createScaledBitmap(bMap12, buttonSize, buttonSize, true); Bitmap bMap13 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled13 = Bitmap.createScaledBitmap(bMap13, buttonSize, buttonSize, true); Bitmap bMap14 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled14 = Bitmap.createScaledBitmap(bMap14, buttonSize, buttonSize, true); Bitmap bMap15 = BitmapFactory.decodeResource(getResources(), R.drawable.vraag); Bitmap bMapScaled15 = Bitmap.createScaledBitmap(bMap15, buttonSize, buttonSize, true); image.setImageBitmap(bMapScaled); image2.setImageBitmap(bMapScaled2); image3.setImageBitmap(bMapScaled3); image4.setImageBitmap(bMapScaled4); image5.setImageBitmap(bMapScaled5); image6.setImageBitmap(bMapScaled6); image7.setImageBitmap(bMapScaled7); image8.setImageBitmap(bMapScaled8); image9.setImageBitmap(bMapScaled9); image10.setImageBitmap(bMapScaled10); image11.setImageBitmap(bMapScaled11); image12.setImageBitmap(bMapScaled12); image13.setImageBitmap(bMapScaled13); image14.setImageBitmap(bMapScaled14); image15.setImageBitmap(bMapScaled15);

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• Dropdown menu disappears in IE7

  - by Justine

  A weird problem with a dropdown menu in IE7: http://screenr.com/SNM The dropdown disappears when the mouse moves to a part that hovers above other layers. The HTML structure looks like this: <div class="header"> <ul class="nav> <li><a href="">item</a> <ul><li><a href="">sub-item</a></li></ul> </li> </ul> </div><!-- /header--> <div class="featured"></div> <div class="content"></div> The sub-menu is positioned absolutely and has visibility:hidden, then it's set to visible using jQuery, like so: $(".header ul.nav li").hover(function(){ $(this).addClass("hover"); $('ul:first',this).css('visibility', 'visible'); }, function(){ $(this).removeClass("hover"); $('ul:first',this).css('visibility', 'hidden'); }); I had a problem with the dropdown hiding under other content in IE7, fixed easily by giving the z-index to its parent and other divs: *:first-child+html .header { position: relative; z-index: 2 !important; } *:first-child+html .content, *:first-child+html .main, *:first-child+html .primary *:first-child+html .featured { position: relative; z-index: 1 !important; } Now, I have no idea why the menu disappears when hovered over other divs, you can view the site live here: http://dev.gentlecode.net/ama/ubezpieczenia.html I would love any help, been staring at this code for ages now without any solution. I guess it's just me tunnel visioning already... Thanks in advance for any help!

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• Need help with creating complex UITableView items (like the Settings app).

  - by Craig

  I hoping to create a custom Settings view, similar to the Settings application, but with more control over the UI and access to some settings (i need to lock some of the settings). Obvously, there are a variety of UI elements mixed in each row of application's UITableView. For example, the 'Airplane Mode' setting shows a UISwitch, while the 'Wi-Fi' setting has a text value adjacent to the disclosure symbol (''). Further complicating matters, is the grouping of these settings. I have some general questions about the approach I should take: Seems like i need to save the name of the setting, its current value, its grouping, and the type of UI element(s) needed to modify its value. i would like to make use [NSUserDefault standardUserDefaults], but not have these settings appear in the Settings application. I'm guessing that I will need to create my own settings-persistence class. is it better to build each one of these complex UI-element combinations in code or to create a series of custom views based on the UITableViewCell and load the appropriate one? i'm guessing the latter. some of the setting require that i load another view to select its value. assuming that the application is based on the Utility pattern, should the SettingsView manage the navigation stack, rather than having the app delegate do so? Thanks for your time and comments. Craig Buchanan

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• Help me to simplify my jQuery, it's growing huge and redundant!

  - by liquilife

  Hey all, I am no jQuery expert, but I'm learning. I'm using a bit (growing to a LOT) of jQuery to hide some images and show a single image when a thumb is clicked. While this bit of jQuery works, it's horribly inefficient but I am unsure of how to simplify this to something that works on more of a universal level. <script> $(document).ready(function () { // Changing the Materials $("a#shirtred").click(function () { $("#selectMaterials img").removeClass("visible"); $("img.selectShirtRed").addClass("visible"); }); $("a#shirtgrey").click(function () { $("#selectMaterials img").removeClass("visible"); $("img.selectShirtGrey").addClass("visible"); }); $("a#shirtgreen").click(function () { $("#selectMaterials img").removeClass("visible"); $("img.selectShirtGreen").addClass("visible"); }); $("a#shirtblue").click(function () { $("#selectMaterials img").removeClass("visible"); $("img.selectShirtBlue").addClass("visible"); }); // Changing the Collars $("a#collarred").click(function () { $("#selectCollar img").removeClass("visible"); $("img.selectCollarRed").addClass("visible"); }); $("a#collargrey").click(function () { $("#selectCollar img").removeClass("visible"); $("img.selectCollarGrey").addClass("visible"); }); $("a#collargreen").click(function () { $("#selectCollar img").removeClass("visible"); $("img.selectCollarGreen").addClass("visible"); }); $("a#collarblue").click(function () { $("#selectCollar img").removeClass("visible"); $("img.selectCollarBlue").addClass("visible"); }); // Changing the Cuffs $("a#cuffred").click(function () { $("#selectCuff img").removeClass("visible"); $("img.selectCuffRed").addClass("visible"); }); $("a#cuffgrey").click(function () { $("#selectCuff img").removeClass("visible"); $("img.selectCuffGrey").addClass("visible"); }); $("a#cuffblue").click(function () { $("#selectCuff img").removeClass("visible"); $("img.selectCuffBlue").addClass("visible"); }); $("a#cuffgreen").click(function () { $("#selectCuff img").removeClass("visible"); $("img.selectCuffGreen").addClass("visible"); }); // Changing the Pockets $("a#pocketred").click(function () { $("#selectPocket img").removeClass("visible"); $("img.selectPocketRed").addClass("visible"); }); $("a#pocketgrey").click(function () { $("#selectPocket img").removeClass("visible"); $("img.selectPocketGrey").addClass("visible"); }); $("a#pocketblue").click(function () { $("#selectPocket img").removeClass("visible"); $("img.selectPocketBlue").addClass("visible"); }); $("a#pocketgreen").click(function () { $("#selectPocket img").removeClass("visible"); $("img.selectPocketGreen").addClass("visible"); }); }); </scrip> <!-- Thumbnails which can be clicked on to toggle the larger preview image --> <div class="materials"> <a href="javascript:;" id="shirtgrey"><img src="/grey_shirt.png" height="122" width="122" /></a> <a href="javascript:;" id="shirtred"><img src="red_shirt.png" height="122" width="122" /></a> <a href="javascript:;" id="shirtblue"><img src="hblue_shirt.png" height="122" width="122" /></a> <a href="javascript:;" id="shirtgreen"><img src="green_shirt.png" height="122" width="122" /></a> </div> <div class="collars"> <a href="javascript:;" id="collargrey"><img src="grey_collar.png" height="122" width="122" /></a> <a href="javascript:;" id="collarred"><img src="red_collar.png" height="122" width="122" /></a> <a href="javascript:;" id="collarblue"><img src="blue_collar.png" height="122" width="122" /></a> <a href="javascript:;" id="collargreen"><img src="green_collar.png" height="122" width="122" /></a> </div> <div class="cuffs"> <a href="javascript:;" id="cuffgrey"><img src="grey_cuff.png" height="122" width="122" /></a> <a href="javascript:;" id="cuffred"><img src="red_cuff.png" height="122" width="122" /></a> <a href="javascript:;" id="cuffblue"><img src="blue_cuff.png" height="122" width="122" /></a> <a href="javascript:;" id="cuffgreen"><img src="/green_cuff.png" height="122" width="122" /></a> </div> <div class="pockets"> <a href="javascript:;" id="pocketgrey"><img src="grey_pocket.png" height="122" width="122" /></a> <a href="javascript:;" id="pocketred"><img src=".png" height="122" width="122" /></a> <a href="javascript:;" id="pocketblue"><img src="blue_pocket.png" height="122" width="122" /></a> <a href="javascript:;" id="pocketgreen"><img src="green_pocket.png" height="122" width="122" /></a> </div> <!-- The larger images where one from each set should be viewable at one time, triggered by the thumb clicked above --> <div class="selectionimg"> <div id="selectShirt"> <img src="grey_shirt.png" height="250" width="250" class="selectShirtGrey show" /> <img src="red_shirt.png" height="250" width="250" class="selectShirtRed hide" /> <img src="blue_shirt.png" height="250" width="250" class="selectShirtBlue hide" /> <img src="green_shirt.png" height="250" width="250" class="selectShirtGreen hide" /> </div> <div id="selectCollar"> <img src="grey_collar.png" height="250" width="250" class="selectCollarGrey show" /> <img src="red_collar.png" height="250" width="250" class="selectCollarRed hide" /> <img src="blue_collar.png" height="250" width="250" class="selectCollarBlue hide" /> <img src="green_collar.png" height="250" width="250" class="selectCollarGreen hide" /> </div> <div id="selectCuff"> <img src="grey_cuff.png" height="250" width="250" class="selectCuffGrey show" /> <img src="red_cuff.png" height="250" width="250" class="selectCuffRed hide" /> <img src="blue_cuff.png" height="250" width="250" class="selectCuffBlue hide" /> <img src="green_cuff.png" height="250" width="250" class="selectCuffGreen hide" /> </div> <div id="selectPocket"> <img src="grey_pocket.png" height="250" width="250" class="selectPocketGrey show" /> <img src="hred_pocket.png" height="250" width="250" class="selectPocketRed hide" /> <img src="blue_pocket.png" height="250" width="250" class="selectPocketBlue hide" /> <img src="green_pocket.png" height="250" width="250" class="selectPocketGreen hide" /> </div> </div>

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• Use absolute path for easier modify include path in future?

  - by i need help

  config.php put at the root level, this file will be included in any pages. Then at config.php <?php define( 'ROOT_DIR', dirname(__FILE__) ); ?> So at all other pages from different sub/a.php , sub/sub/b.php directories, when I want to include a specific file in specific location, I just need to include( ROOT_DIR.'/include/functions.php' ); In windows server, the ROOT_DIR bring the value to C:/inetpub/vhosts/domain.com Is this a good/secure way? It seems like via this way, when I move the b.php to other upper level folder, I don't need to do any changes to the include file path, which is good for maintenance. Any cons? Like SEO wise, or any other reason... What you guys think.

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• Advice needed- aweber form submission using curl?

  - by i need help

  Advice needed for backend form submission to aweber and get response. Scenario When customer signup at my form, I will 1. insert the customer details into my own database, 2. send them a welcome email from my system, 3. at the same time I want the email to be added into aweber (this should run in the background, so that customer no need to fill in details for second time) If I use the php curl call alone, is it a good solution? I want to submit form value to aweber, so that aweber add the new email into their system, and then response to my backend script? I have seen many versions outside, which may include: http://scripts.incutio.com/httpclient/ http://freshmeat.net/projects/curl_http_client/ http://snoopy.sourceforge.net/ Are they having any special benefit over the normal php curl call to pass in data?

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• $.noConflict() not working with mootools slide show. Need help !

  - by Shantanu Gupta

  I am working on a site http://tapasya.co.in where i just impemented mootools slideshow. But I noticed that menubar that i was using stopped working, it was supposed to drop horizontaly but it is not being displayed now. I have used jquery for it. Please see the source of the web page. What can be the problem ? Mootools conflicting with javascript or some other problem. If I tries to use $.noConflict() it throws me an error in script Uncaught TypeError: Object function (B,C){if(B&&B.$family&&B.uid){return B}var A=$type(B);return($[A])?$[A](B,C,this.document):null} has no method 'noConflict' I tried the given solution below. But it is not working. <script type="text/javascript" src="<%= ResolveUrl("~/Js/jquery-1.3.2.min.js") %>" ></script> <script type="text/javascript" src="<%= ResolveUrl("~/Scripts/SlideShow/js/mootools.js") %>"></script> <script type="text/javascript" src="<%= ResolveUrl("~/Scripts/SlideShow/js/slideshow.js") %>"></script> <script type="text/javascript" src="<%= ResolveUrl("~/Scripts/SlideShow/js/lightbox.js") %>"></script> <script type="text/javascript"> // <![CDATA[ $.noConflict(); var timeout = 500; var closetimer = 0; var ddmenuitem = 0; function ddmenu_open(){ ddmenu_canceltimer(); ddmenu_close(); ddmenuitem = $(this).find('ul').css('visibility', 'visible'); } function ddmenu_close(){ if(ddmenuitem) ddmenuitem.css('visibility', 'hidden'); } function ddmenu_timer(){ closetimer = window.setTimeout(ddmenu_close, timeout); } function ddmenu_canceltimer(){ if(closetimer){ window.clearTimeout(closetimer); closetimer = null; }} $(document).ready(function(){ $('#ddmenu > li').bind('mouseover', ddmenu_open) $('#ddmenu > li').bind('mouseout', ddmenu_timer) }); document.onclick = ddmenu_close; // ]]> </script> <script type="text/javascript"> //<![CDATA[ window.addEvent('domready', function(){ var data = { '1.jpg': { caption: 'Acoustic Guitar,electric,bass,keyboard, indian vocal traning and Music theory.' }, '2.jpg': { caption: 'Acoustic Guitar,electric,bass,keyboard, indian vocal traning and Music theory.' }, '3.jpg': { caption: 'Acoustic Guitar,electric,bass,keyboard, indian vocal traning and Music theory.' }, '4.jpg': { caption: 'Acoustic Guitar,electric,bass,keyboard, indian vocal traning and Music theory.' } }; // Note the use of "linked: true" which tells Slideshow to auto-link all slides to the full-size image. //http://code.google.com/p/slideshow/wiki/Slideshow#Options: var mootoolsSlideshow = new Slideshow('divbanner', data, {loader:true,captions: true, delay: 5000,controller: false, height: 370,linked: false, hu: '<%= ResolveUrl("~/Scripts/SlideShow/Images/") %>', thumbnails: true, width: 1002}); // Here we create the Lightbox instance. // In this case we will use the "close" and "open" callbacks to pause our show while the modal window is visible. var box = new Lightbox({ 'onClose': function(){ this.pause(false); }.bind(mootoolsSlideshow), 'onOpen': function(){ this.pause(true); }.bind(mootoolsSlideshow) }); }); //]]> </script>

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• Android: How can i play Video in the internal MediaPlayer from a Resource, Can anyone Help?

  - by Lucy

  Hi, I am trying to play a mp4 video from the resource within the app, either res/raw or assets, but i am having no luck, nor can i find any tutorials or solutions that work anywhere, hoping someone hear can provide the answer. Code below that i thought would work but doesnt, please show me how? Thanks Lucy public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.video); final Button button = (Button) findViewById(R.id.play); button.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { Uri uri = Uri.parse("android.resource://com.video.play.test/" + R.raw.test2); Intent intent=new Intent(Intent.ACTION_VIEW); intent.setDataAndType(uri, "video/mp4"); startActivity(intent); } }); }

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• As a web developer, what are your favorite software tools that help to get the job done?

  - by Ben

  I find myself using the software below most. Gimp(GNU Image Manipulation Program) - For making sure elements within web pages are aligned pixel perfect. Fiddler - For analyzing HTTP(S) traffic. Programmers Notepad - For code editing and comparison.

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• Could you help me write a proper query in rails for accessing the following information?

  - by aditi-syal

  @workname = [] @recos = [] @bas = [] if current_user.recommendations.size != 0 current_user.recommendations.each do |r| if r.work_type == 'J' @job = Job.find_by_id(r.work_id) @workname.push "#{@job.title} at #{@job.company.name}" else @qualification = Qualification.find_by_id(r.work_id) @workname.push "Student at #{@qualification.school_name}" end @recommender = User.find_by_id(r.recommender_id) if r.recommender_work_type == 'J' @job = Job.find_by_id(r.recommender_work_id) @recos.push "#{@recommender.first_name} #{@recommender.last_name}" @bas.push "#{r.basis.gsub("You","#{@job.title} at #{@job.company.name}")}" else @qualification = Qualification.find_by_id(r.recommender_work_id) @recos.push "#{@recommender.first_name} #{@recommender.last_name} as " @bas.push "#{r.basis.gsub("You","Student at #{@qualification.school_name}")}" end end end

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• HELP! WebClient.UploadFile() throws exception while uploading files to sharepoint

  - by Royson

  In my application i am uploading files to sharepoint 2007. I am using using (WebClient webClient = new WebClient()) { webClient.Credentials = new NetworkCredential(userName, password); webClient.Headers.Add("Content-Type", "application/x-vermeer-urlencoded"); webClient.Headers.Add("X-Vermeer-Content-Type", "application/x-vermeer-urlencoded"); String result = Encoding.UTF8.GetString(webClient.UploadData(webUrl + "/_vti_bin/_vti_aut/author.dll","POST", data.ToArray())); } the code is running successfully..but for some files it throws exception The underlying connection was closed: The connection was closed unexpectedly. at System.Net.WebClient.UploadDataInternal(Uri address, String method, Byte[] data, WebRequest& request) at System.Net.WebClient.UploadData(Uri address, String method, Byte[] data) at System.Net.WebClient.UploadData(String address, String method, Byte[] data) Any Ideas what I have done wrong? I am using VS-2008 2.0

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• Zend Framework - tinyMCE - plugin folders are mistaken to be controllers? Help

  - by Ali

  Hi guys I'm trying to integrate the tinymce plugin however I'm running into problems such that almost every feature which requires a plugin to be rendered i.e the add url popup or add image pop up - it opens an empty pop up window. Even if I try to open it inline I get the same blank popup window.. I noticed that whenever I click on lets say url button in tinymCE it opens with reference to my localhost and because of that I'm assuming my application is mistaking the containing javascript folder to be some controller or action. How can I fix this please - I've set up mod rewrite to allow clean urls as well as ignore the javascript folder but this is a different issue altogether :( what should I be looking at here.. I can't notice any error sin firebug..

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• Windows Sidebar gadget - cannont access a div in Flyout DOM

  - by cyrix86

  In the main gadget html, there is a div with an onclick that calls this method in the Gadget script file: ShowFlyout = function() { System.Gadget.Flyout.show = true; var flyoutDoc = System.Gadget.Flyout.document; var mainFlyoutDiv = flyoutDoc.getElementById('divFlyout'); mainFlyoutDiv.innerHTML = "hello"; } Here is the Flyout html: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>This is a flyout</title> <link href="Css\FlyoutStyle.css" type="text/css" rel="Stylesheet" /> </head> <body> <div id="divFlyout" > </div> </body> </html> The problem is that mainFlyoutDiv is always null. When peering into the System.Gadget.Flyout.document object through the debugger, the body parameter is null - I don't think that's right. The System.Gadget.Flyout.file value is being set elsewhere when the gadget first loads. What am I doing wrong? Also, does the System.Gadget.Flyout.show property have to be true before the System.Gadget.Flyout.document property can be accessed? My ultimate goal is to open a flyout and dynamically populate it's html

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• How to embed multiple jQuery line of code in custom HtmlHelpers ASP.NET MVC

  - by embarus

  I 've tried to create my own HTML Helper which work fine for my need but I can't embed many lines of jQuery code in my extension HtmlHelpers class. I've tried @ literal for jQuery code I doesn't work or I need to escape every line of code that I thing I not good for multiple line of code. I don't know if there is another way to achieve this problem like << Therefore, I need to include jQuery plugin file and put implement script after HTML tag. I find it would be convenience if I could put every in HTML helper and put a single line of code in aspx page for example <%= Html.ParentChildSelectList(string parentName, string childName, IEnumerable parentViewData, IEnumerable childViewData, int parentSize, in childSize) % The following code is the way that I used now. the .aspx page Category model.CategoryID)% , new { size = 10 })% model.SubcategoryID,"subcategory") % model.SubcategoryID)% , new { size = 10 })% <script type="text/javascript"> jQuery.sarapadchang.parentChildSelectList( { parentId : "CategoryID" , childId : "SubcategoryID", actionName : "GetSubcategoryList", controllerName : "Json" } ); </script> I put in head tag to include ParentChildSelectList.js the following code for ParentChildSelectList.js (function($) { $.sarapadchang = { parentChildSelectList: function(options) { // $("#CategoryID option").click(function() $("#" + options.parentId).find("option").click(function() { $("#" + options.childId).empty(); //clear data $("#" + options.childId).append('<option>loading...</option>'); $.post("/" + options.controllerName + "/" + options.actionName + "/" + $(this).attr('value'), "", function(data) { var html = ""; $.each(data, function(index, entry) { html += '<option value="' + entry['Value'] + '">' + entry['Text'] + '</option>'; } ); $("#" + options.childId).empty() $("#" + options.childId).append(html); }, "json"); //end getJson }); })(jQuery); To illustrate you, I've attached simple solution, please follow this link. http://www.thaileaguefc.net/ParentChildSelectList.rar Please accept my apologies if my English is difficult to understand. I am looking forward to hearing from you. Your faithfully, Theeranit

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• Is there any framework for rich web clients on top of html/css?

  - by iamgopal

  Some RAD tools like openobject use rich web clients. I.e. their client side code reside inside the browser and they talk to the server via xml-rpc or json-rpc only and change the view accordingly, all the javascript and css are transferred only once. Such rich web clients would increase the productivity in enterprise class web application that have lots of processes and forms etc. I would like to use such a rich web client inside my own application. I tried to search but found only openerp-web, which is tightly integrated to its server. Is there any other rich web client framework available? if not, is there any design detail I can look into to create my own? Thanks. Edit: Browser is a client which uses http and similar protocols to talks to web server which serve pages that the client displays. Rich web client is a client which sits on top of Browser which talks to the server, send data, receive data and information about How to update the view etc and do it. Similar to Vaadin, such rich web client will eliminate any code requirement on client side and and all the coding will be done on server side. Belows are such thin clients. pjax ( jquery ) vaadin ( java ) openobject web client ( python ) nagare ( python ) seaside ( smalltalk ) p4a ( php ) this are all such clients that once properly setup will allow to code on only on sever and still provide great ajax like experience.

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• HELP!! Delayed-job: Rake aborted! Can't modify frozen hash

  - by pmneve

  Too bad even the trace doesn't say which hash is involved. Sorry this post is long: am trying to provide enough context to be meaningful. Occurs intermittently when rake jobs:work is pulling a command out of delayed_jobs while my status observer is in the process of parsing a log file for detailed results of the previous delayed_job denizen. I have an observer class (in RAILS_ROOT/lib ) which listens for the events, makes a copy of them and calls the owner class ( in apps/models ) which then calls on the log parser (also in /lib) to do the actual work. (Should both of those classes, the observer and the parser be in app/models?) Am due to deliver this application in a few days and this is killing it (and me). Am using DirectoryWatcher to look for flag files that indicate the start and finish of the delayed_jobs. That is started at the end of environment.rb like this: require 'directory_watcher' $scriptStatusObserver = ScriptStatusObserver.new dirToWatch ="#{RAILS_ROOT}/tmp/flags" $directoryWatcher = DirectoryWatcher.new( dirToWatch ) $directoryWatcher.glob= "*.flg" $directoryWatcher.interval=(15) $directoryWatcher.add_observer( $scriptStatusObserver ) $directoryWatcher.persist=("#{RAILS_ROOT}/tmp/flags/dw_state.yml") $directoryWatcher.start at_exit { $directoryWatcher.stop } This code is outside of the run method (btw is that the best place or is inside the run better?) Here is the observer: require 'script_run' class ScriptStatusObserver def initialize @rcvdEvents = [] end def update( *events ) begin puts "#{LINE.to_s}: ScriptStatusObserver events: \n"+events.to_yaml cnt = 0 events.each do |e| if e.to_s.match(/^\s*added/) cnt = cnt + 1 @rcvdEvents << e end end ScriptRun.new.catch_up( @rcvdEvents ) if cnt > 0 @rcvdEvents.clear rescue puts $! end end end Here is ScriptRun (it attaches to an associative table built with has_many:through) require 'observer' class ScriptRun < ActiveRecord::Base set_table_name "scripts_runs" belongs_to :script belongs_to :run def parse( result ) parser = LogParser.new parser.parse(result) end def catch_up( events ) events.each do |e| typ = e.type path = e.path thisMatch = path.match(/flags\/(\d+)_(\d+)_([\d\.]+)_(\w+)\.flg/) run_id = thisMatch[1] script_id = thisMatch[2] ts = thisMatch[3] status = thisMatch[4] if e.to_s.match(/^\s*added/) status_update( script_id, run_id, status, ts, path ) end end end def status_update( script_id, run_id, status, ts, path ) scriptrun = ScriptRun.find(:first, :conditions => [ "run_id = ? and script_id = ?", run_id.to_i, script_id.to_i ]) if scriptrun.kind_of?(ScriptRun) currStatus = scriptrun.status if not currStatus == 'completed' scriptrun.update_attribute(:status, status) if status == 'parse' flag = File.new(path) logSpec = flag.gets flag.close logName = File.basename(logSpec) logPath = logSpec.sub(logName, '') logName =~ /^(([\w_]+)_([\w]+)_(\d+))\.log$/ name = $1 basename = $2 runenv = $3 tsOrPid = $4 result = Result.new result.log_path = logPath result.basename = basename result.name = name result.script_id = script_id.to_i result.run_id = run_id.to_i if runenv == 'sit' runenv = 'SIT3348' end result.application_environment_id = ApplicationEnvironment.find(:first, :conditions => [ "nodename = ?", runenv]).id parse(result) if run_completed?( run_id ) myRun = Run.find(run_id.to_i) if myRun.kind_of?( Run ) myRun.update_attribute( :completed, Time.now.to_f ) end end end end else puts "#{__LINE__.to_s}: ScriptRun.status_update: ScriptRun not found for run #{run_id} script #{script_id} ts #{ts.to_s}" end File.delete(path) end def run_completed?( id ) scriptruns = ScriptRun.find(:all, :conditions = [ "run_id = ?", id.to_i] ) scriptruns.each do |sr| if not sr.status == 'completed' return false end end return true end end LogParser is too long even for this post but it reads the script log and pulls detailed information (counts and timings) out of the log and writes to a details table. It also tallies and calculates averages and rolls those up into summary tables for quicker access from the web pages. Here is the error trace: (don't ask why everything is under my Windows profile. It's a long story) Scanner running 1270239731.43 directory_watcher.notify_observers: #, #] update:[#, /pneve/workspace/waftt-0.29/tmp/flags/100039_18_1270239550.108_parse.flg"] rake aborted! can't modify frozen hash C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/attribute_methods.rb:313:in []=' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/attribute_methods.rb:313:inwrite_attribute_without_dirty' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/dirty.rb:139:in write_attribute' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/attribute_methods.rb:211:inlast_error=' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:141:in handle_failed_job' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:115:inrun' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:162:in reserve_and_run_one_job' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:92:inwork_off' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:91:in times' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:91:inwork_off' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:66:in start' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activesupport/ lib/active_support/core_ext/benchmark.rb:10:inrealtime' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:65:in start' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:62:inloop' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:62:in start' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/tasks.rb:13 c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:636:incall' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:636:in execute' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:631:ineach' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:631:in execute' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:597:ininvoke_with_call_chain' c:/Documents and Settings/pneve/ruby/lib/ruby/1.8/monitor.rb:242:in synchronize ' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:590:ininvoke_with_call_chain' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:583:in invoke' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2051:ininvoke_task' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2029:in top_level' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2029:ineach' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2029:in top_level' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2068:instandard_exception_handling' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2023:in top_level' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2001:inrun' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2068:in standard_exception_handling' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:1998:inrun' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake: 31 c:/Documents and Settings/pneve/ruby/bin/rake:16:in `load' c:/Documents and Settings/pneve/ruby/bin/rake:16

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• Ruby on Rails - Static page as start page

  - by meetraghu28

  Hello! I am developing an app in RoR which has static and dynamic parts. The static portion is placed in the public/ folder of the app. Now if i have an index.html in my public folder then i will not be able to use the routes configured in my routes.rb The default configurations like map.connect /:controller/:action will not be usable if i have an index.html. So i removed the index html. Now i have a static page startpage.html in my public/ folder which has to be the starting page of the app. And the i have links in it for other static/dynamic pages. The RoR app is hosted in apache and i tried to configure the Virtual Host configuration by adding the DirectoryIndex param so that when ever a request comes for the site it will direct it to the startpage.html but still it takes me to the default controller that i have specified in routes.rb with map.root I dont want to add a dummy controller and action and create a view which has the startpage and configure routes.rb to use it as the root. What i am looking to do here is Basically startpage.html should be my first page in the app served as a static page from the public/ folder. This will then have links to other pages and controllers/actions Here i am not able to apache to redirect to the html page instead of passing on the control to rails application. Directory listing is also enabled by using Options Indexes but still no change. Any pointers anyone?

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• Help with ActiveX Install? Merge Modules - Windows Vista and Windows 7

  - by Watts

  I'm building an ActiveX control installer in VS2008 which uses both the CRT and MFC merge modules to install. When my control tries to register on Windows 7 it fails. Dependency Walker says I'm missing the mfc90u.dll, msvcr90.dll and msvcp90.dll dependencies when trying to register my control and the install fails. Are the merge modules supposed to take care of this? My output OCX is being registered with the vsdrpCOMSelfReg option. From what I am reading on other forums, this might not be the best method, what should I try at this point? Install works fine on Windows XP.

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• Im getting fatal errors... can anyone help me edit my program!

  - by user350217

  The errors i am getting are: Error 1 error LNK2019: unresolved external symbol "double __cdecl getDollarAmt(void)" (? getDollarAmt@@YANXZ) referenced in function _main hid.obj Error 2 fatal error LNK1120: 1 unresolved externals this is my program: #include<iostream> #include<cmath> #include<string> using namespace std; double getDollarAmt(); void displayCurrencies(); char getCurrencySelection (float amtExchanged); bool isSelectionValid(char selection); double calcExchangeAmt (float amtExchanged, char selection); void displayResults(double newAmount, float amtExchanged, char selection, char yesNo); const double russianRubles = 31.168; const double northKoreanWon = .385; const double chineseYuan = 6.832; const double canadianDollar = 1.1137; const double cubanPeso = 1.0; const double ethiopianBirr = 9.09; const double egyptianPound = 5.6275; const double tunisianDinar = 1.3585; const double thaiBaht = 34.4; /****** I changed the variables to global variables so you don't have to worry about accidentally setting them to 0 or assigning over a value that you need ********/ float amtEchanged = 0.0; char selection; char yesNo; double newAmount; int main() { float amtExchanged = 0.0; selection = 'a'; yesNo = 'y'; newAmount = 0.0; getDollarAmt (); displayCurrencies(); getCurrencySelection (amtExchanged); isSelectionValid(selection);/**** you only need to use the selection variable ****/ calcExchangeAmt (amtExchanged, selection); displayResults(newAmount, amtExchanged, selection, yesNo); return 0; } double getDollarAmt (float amtExchanged) // promt user for eachange amount and return it to main { float amtExchanged0;//created temporary variable to set amtExchanged to cout<< "Please enter the total dollar amount to exchange: "; cin>> amtExchanged0; amtExchanged = amtExchanged0;//setting amtExchanged to the right value return amtExchanged; } void displayCurrencies() // display list of currencies { cout<<"A Russian Ruble"<<endl <<"B North Korean Won"<<endl <<"C Chinese Yuan"<<endl <<"D Cuban Peso"<<endl <<"E Ethiopian Birr"<<endl <<"F Thai Baht"<<endl <<"G Canadian Dollars"<<endl <<"H Tunisian Dinar"<<endl <<"I Egyptian Pound"<<endl; } char getCurrencySelection (float amtExchanged) // make a selection and return to main { char selection0;//again, created a temporary variable for selection cout<<"Please enter your selection: "; cin>>selection0; selection = selection0;//setting the temporary variable to the actual variable you use /***** we are now going to see if isSelectionValid returns false. if it returns false, that means that their selection was not character A-H. if it is false we keep calling getCurrencySelection *****/ if(isSelectionValid(selection)==false) { cout<<"Sorry, the selection you chose is invalid."<<endl; getCurrencySelection(amtExchanged); } return selection; } bool isSelectionValid(char selection) // this fuction is supposed to be called from getCurrencySelection, the selction // must be sent to isSelectionValid to determine if its valid // if selection is valid send it bac to getCurrencySelection // if it is false then it is returned to getCurrencySelection and prompted to // make another selection until the selection is valid, then it is returned to main. { /**** i'm not sure if this is what you mean, all i am doing is making sure that their selection is A-H *****/ if(selection=='A' || selection=='B' || selection=='C' || selection=='D' || selection=='E' || selection=='F' || selection=='G' || selection=='H' || selection=='I') return true; else return false; } double calcExchangeAmt (float amtExchanged,char selection) // function calculates the amount of money to be exchanged { switch (toupper(selection)) { case 'A': newAmount =(russianRubles) * (amtExchanged); break; case 'B': newAmount = (northKoreanWon) * (amtExchanged); break; case 'C': newAmount = (chineseYuan) * (amtExchanged); break; case 'D': newAmount = (canadianDollar) * (amtExchanged); break; case 'E': newAmount = (cubanPeso) * (amtExchanged); break; case 'F': newAmount = (ethiopianBirr) * (amtExchanged); break; case 'G': newAmount = (egyptianPound) * (amtExchanged); break; case 'H': newAmount = (tunisianDinar) * (amtExchanged); break; case 'I': newAmount = (thaiBaht) * (amtExchanged); break; } return newAmount; } void displayResults(double newAmount, float amtExchanged, char selection, char yesNo) // displays results and asked to repeat. IF they want to repeat it clears the screen and starts over. { switch(toupper(selection)) { case 'A': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Russian Rubles."<<endl<<endl; break; case 'B': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" North Korean Won."<<endl<<endl; break; case 'C': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Chinese Yuan."<<endl<<endl; break; case 'D': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Cuban Pesos."<<endl<<endl; break; case 'E': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Ethiopian Birr."<<endl<<endl; break; case 'F': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Thai Baht."<<endl<<endl; break; case 'G': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Canadian Dollars."<<endl<<endl; break; case 'H': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Tunisian Dinar."<<endl<<endl; break; case 'I': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Egyptian Pound."<<endl<<endl; break; } cout<<"Do you wish to continue? (Y for Yes / N for No)"; cin>>yesNo; if(yesNo=='y' || yesNo=='Y') { getDollarAmt(); } else { system("cls"); } }

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• HELP!! Rake aborted! Can't modify frozen hash

  - by pmneve

  Too bad even the trace doesn't say which hash is involved. Sorry this post is long: am trying to provide enough context to be meaningful. Occurs intermittently when rake jobs:work is pulling a command out of delayed_jobs while my status observer is in the process of parsing a log file for detailed results of the previous delayed_job denizen. I have an observer class (in RAILS_ROOT/lib ) which listens for the events, makes a copy of them and calls the owner class ( in apps/models ) which then calls on the log parser (also in /lib) to do the actual work. (Should both of those classes, the observer and the parser be in app/models?) Am due to deliver this application in a few days and this is killing it (and me). Am using DirectoryWatcher to look for flag files that indicate the start and finish of the delayed_jobs. That is started at the end of environment.rb like this: require 'directory_watcher' $scriptStatusObserver = ScriptStatusObserver.new dirToWatch ="#{RAILS_ROOT}/tmp/flags" $directoryWatcher = DirectoryWatcher.new( dirToWatch ) $directoryWatcher.glob= "*.flg" $directoryWatcher.interval=(15) $directoryWatcher.add_observer( $scriptStatusObserver ) $directoryWatcher.persist=("#{RAILS_ROOT}/tmp/flags/dw_state.yml") $directoryWatcher.start at_exit { $directoryWatcher.stop } This code is outside of the run method (btw is that the best place or is inside the run better?) Here is the observer: require 'script_run' class ScriptStatusObserver def initialize @rcvdEvents = [] end def update( *events ) begin puts "#{LINE.to_s}: ScriptStatusObserver events: \n"+events.to_yaml cnt = 0 events.each do |e| if e.to_s.match(/^\s*added/) cnt = cnt + 1 @rcvdEvents << e end end ScriptRun.new.catch_up( @rcvdEvents ) if cnt > 0 @rcvdEvents.clear rescue puts $! end end end Here is ScriptRun (it attaches to an associative table built with has_many:through) require 'observer' class ScriptRun < ActiveRecord::Base set_table_name "scripts_runs" belongs_to :script belongs_to :run def parse( result ) parser = LogParser.new parser.parse(result) end def catch_up( events ) events.each do |e| typ = e.type path = e.path thisMatch = path.match(/flags\/(\d+)_(\d+)_([\d\.]+)_(\w+)\.flg/) run_id = thisMatch[1] script_id = thisMatch[2] ts = thisMatch[3] status = thisMatch[4] if e.to_s.match(/^\s*added/) status_update( script_id, run_id, status, ts, path ) end end end def status_update( script_id, run_id, status, ts, path ) scriptrun = ScriptRun.find(:first, :conditions => [ "run_id = ? and script_id = ?", run_id.to_i, script_id.to_i ]) if scriptrun.kind_of?(ScriptRun) currStatus = scriptrun.status if not currStatus == 'completed' scriptrun.update_attribute(:status, status) if status == 'parse' flag = File.new(path) logSpec = flag.gets flag.close logName = File.basename(logSpec) logPath = logSpec.sub(logName, '') logName =~ /^(([\w_]+)_([\w]+)_(\d+))\.log$/ name = $1 basename = $2 runenv = $3 tsOrPid = $4 result = Result.new result.log_path = logPath result.basename = basename result.name = name result.script_id = script_id.to_i result.run_id = run_id.to_i if runenv == 'sit' runenv = 'SIT3348' end result.application_environment_id = ApplicationEnvironment.find(:first, :conditions => [ "nodename = ?", runenv]).id parse(result) if run_completed?( run_id ) myRun = Run.find(run_id.to_i) if myRun.kind_of?( Run ) myRun.update_attribute( :completed, Time.now.to_f ) end end end end else puts "#{__LINE__.to_s}: ScriptRun.status_update: ScriptRun not found for run #{run_id} script #{script_id} ts #{ts.to_s}" end File.delete(path) end def run_completed?( id ) scriptruns = ScriptRun.find(:all, :conditions = [ "run_id = ?", id.to_i] ) scriptruns.each do |sr| if not sr.status == 'completed' return false end end return true end end LogParser is too long even for this post but it reads the script log and pulls detailed information (counts and timings) out of the log and writes to a details table. It also tallies and calculates averages and rolls those up into summary tables for quicker access from the web pages. Here is the error trace: (don't ask why everything is under my Windows profile. It's a long story) Scanner running 1270239731.43 directory_watcher.notify_observers: #, #] update:[#, /pneve/workspace/waftt-0.29/tmp/flags/100039_18_1270239550.108_parse.flg"] rake aborted! can't modify frozen hash C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/attribute_methods.rb:313:in []=' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/attribute_methods.rb:313:inwrite_attribute_without_dirty' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/dirty.rb:139:in write_attribute' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activerecord/l ib/active_record/attribute_methods.rb:211:inlast_error=' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:141:in handle_failed_job' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:115:inrun' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:162:in reserve_and_run_one_job' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:92:inwork_off' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:91:in times' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:91:inwork_off' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:66:in start' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/rails/activesupport/ lib/active_support/core_ext/benchmark.rb:10:inrealtime' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:65:in start' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:62:inloop' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/worker.rb:62:in start' C:/Documents and Settings/pneve/workspace/waftt-0.29/vendor/plugins/delayed_job/ lib/delayed/tasks.rb:13 c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:636:incall' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:636:in execute' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:631:ineach' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:631:in execute' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:597:ininvoke_with_call_chain' c:/Documents and Settings/pneve/ruby/lib/ruby/1.8/monitor.rb:242:in synchronize ' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:590:ininvoke_with_call_chain' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:583:in invoke' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2051:ininvoke_task' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2029:in top_level' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2029:ineach' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2029:in top_level' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2068:instandard_exception_handling' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2023:in top_level' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2001:inrun' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:2068:in standard_exception_handling' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake. rb:1998:inrun' c:/Documents and Settings/pneve/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake: 31 c:/Documents and Settings/pneve/ruby/bin/rake:16:in `load' c:/Documents and Settings/pneve/ruby/bin/rake:16

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