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  • User Management: Managing users in user-defined "groups", database schema and logistics

    - by Kevin Brown
    I'm a noob, development wise and logistically-wise. I'm developing a site that lets people take a test... My client wants the ability for a user with the roll/privledge "admin" (a step below a super-admin) to be allowed to create users and only see/edit the users that they create... The users created in that "category" or group need some information that their superior provides. For example, I log in as a "manager", I have the ability to invite people to take the test, and manage those people. Before adding those people, I will have filled out a short survey about myself... Right now, the users that are invited will be asked some of the same questions as the manager. I'd like to cut down the redundancy by using the information put into the database by the manager and apply it to the invited users. How do I set up my database to work with this criterion? I'm a little confused about how to do this! Let me know if I can add more details... (This is a mysql and php app)

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  • Dealing with dependencies between WCF services when using Castle Windsor

    - by Georgia Brown
    I have several WCF services which use castle windsor to resolve their dependencies. Now I need some of these services to talk to each other. The typical structure is service -- Business Logic -- DAL The calls to the other services need to occur at Business Logic level. What is the best approach for implementing this? Should I simply inject a service proxy into the business logic? Is this wasteful if for example, only one of two method from my service need to use this proxy? What if the services need to talk to each other? - Will castle windsor get stuck in a loop trying to resolve each services dependencies?

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  • "Cannot find symbol" problem.

    - by joseph
    I'm getting the Cannot find symbol error from my code. Does anyone know what can cause this problem? // Register JDBC driver Class.forName("net.sourceforge.jtds.jdbc.Driver"); method forName(java.Lang.String) Class.forName("net.sourceforge.jtds.jdbc.Driver); ^

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  • intersection of three sets in python?

    - by Phil Brown
    Currently I am stuck trying to find the intersection of three sets. Now these sets are really lists that I am converting into sets, and then trying to find the intersection of. Here's what I have so far: for list1 in masterlist: list1=thingList1 for list2 in masterlist: list2=thingList2 for list3 in masterlist: list3=thingList3 d3=[set(thingList1), set(thingList2), set(thingList3)] setmatches c= set.intersection(*map(set,d3)) print setmatches and I'm getting set([]) Script terminated. I know there's a much simpler and better way to do this, but I can't find one...

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  • Using game of life or other virtual environment for artificial (intelligence) life simulation? [clos

    - by Berlin Brown
    One of my interests in AI focuses not so much on data but more on biologic computing. This includes neural networks, mapping the brain, cellular-automata, virtual life and environments. Described below is an exciting project that includes develop a virtual environment for bots to evolve in. "Polyworld is a cross-platform (Linux, Mac OS X) program written by Larry Yaeger to evolve Artificial Intelligence through natural selection and evolutionary algorithms." http://en.wikipedia.org/wiki/Polyworld " Polyworld is a promising project for studying virtual life but it still is far from creating an "intelligent autonomous" agent. Here is my question, in theory, what parameters would you use create an AI environment? Possibly a brain environment? Possibly multiple self contained life organisms that have their own "brain" or life structures. I would like a create a spin on the game of life simulation. What if you have a 64x64 game of life grid. But instead of one grid, you might have N number of grids. The N number of grids are your "life force" If all of the game of life entities die in a particular grid then that entire grid dies. A group of "grids" makes up a life form. I don't have an immediate goal. First, I want to simulate an environment and visualize what is going on in the environment with OpenGL and see if there are any interesting properties to the environment. I then want to add "scarce resources" and see if the AI environment can manage resources adequately.

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  • No transperancy in Bitmap loading from MemoryStream

    - by Jogi Joseph George
    Please see the C# code. When i am writing a Bitmap to a file and read from the file, i am getting the transperancy correctly. using (Bitmap bmp = new Bitmap(2, 2)) { Color col = Color.FromArgb(1, 2, 3, 4); bmp.SetPixel(0, 0, col); bmp.Save("J.bmp"); } using (Bitmap bmp = new Bitmap("J.bmp")) { Color col = bmp.GetPixel(0, 0); // ------------------------------ // Here col.A is 1. This is right. // ------------------------------ } But if I write the Bitmap to a MemoryStream and read from that MemoryStream, the transperancy has been removed. All Alpha values become 255. MemoryStream ms = new MemoryStream(); using (Bitmap bmp = new Bitmap(2, 2)) { Color col = Color.FromArgb(1, 2, 3, 4); bmp.SetPixel(0, 0, col); bmp.Save(ms, ImageFormat.Bmp); } using (Bitmap bmp = new Bitmap(ms)) { Color col = bmp.GetPixel(0, 0); // ------------------------------ // But here col.A is 255. Why? i am expecting 1 here. // ------------------------------ } I wish to save the Bitmap to a MemoryStream and read it back with transperancy. Could you please help me?

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  • Wordpress: Sort posts by meta value after AFTER querying from database

    - by Joseph Carrington
    Hello, I am pulling posts from my database by using Wordpress' WP_Query object like so: $shows_query = new WP_Query("category_name=shows&meta_key=band&meta_value=$artist_id"); I have another meta value I would like to sort the posts by, however. The meta key is 'date'. The WP_Query object can no work with multiple meta_keys, so this does not work: $shows_query = new WP_Query("category_name=shows&meta_key=band&meta_value=$artist_id&meta_key=date&orderby=meta_value&order=DESC"); So now I have to figure out a way to sort the posts in $shows_query['posts'] by one of their meta_values, which are not even IN their array. Any other, more sensible approach would also be appreciated.

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  • Why is this bookmarklet code saying jQuery is not defined even though jQuery is included?

    - by Josh Brown
    I am creating a bookmarklet and the code below is not working on first try. When I goto a page, it says "jQuery is not defined". But, if I click it again, it works perfectly? var qrcodetogo = { jQURL: 'http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js', jQUIURL: 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js', jQUIThemeURL: 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/ui-lightness/jquery-ui.css', init: function(){ this.createLink('qrcodetogo_UI-Lightness', this.jQUIThemeURL); this.createScript('qrcodetogo_jQuery', this.jQURL); this.createScript('qrcodetogo_jQueryUI', this.jQUIURL); this.createHiddenDiv('qrcodetogo_dialog','This is a Test.'); jQuery.noConflict(); }, showQRCode: function() { jQuery('#qrcodetogo_dialog').dialog(); }, createLink: function(id, url) { var l = document.createElement('link'); l.href = url; l.rel = 'stylesheet'; l.type = 'text/css'; l.media = 'screen'; l.charset = 'utf-8'; document.getElementsByTagName('head')[0].appendChild(l); }, createScript: function(id, url) { var s = document.createElement('script'); s.src = url; s.id = id; document.getElementsByTagName('head')[0].appendChild(s); }, createHiddenDiv: function(id, body) { var div = document.createElement('div'); div.id = id; div.innerHTML = body; div.style.display = 'none'; document.getElementsByTagName('body')[0].appendChild(div) } } qrcodetogo.init(); qrcodetogo.showQRCode();

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  • Can you overload controller methods in ASP.Net MVC?

    - by Eric Brown
    Im curious to see if you can overload controller methods in ASP.Net MVC. Whenever I try, I get the error below. The two methods accept different arguements. Is this something that cannot be done? The current request for action 'MyMethod' on controller type 'MyController' is ambiguous between the following action methods:

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  • Using inheritance and polymorphism to solve a common game problem

    - by Barry Brown
    I have two classes; let's call them Ogre and Wizard. (All fields are public to make the example easier to type in.) public class Ogre { int weight; int height; int axeLength; } public class Wizard { int age; int IQ; int height; } In each class I can create a method called, say, battle() that will determine who will win if an Ogre meets and Ogre or a Wizard meets a Wizard. Here's an example. If an Ogre meets an Ogre, the heavier one wins. But if the weight is the same, the one with the longer axe wins. public Ogre battle(Ogre o) { if (this.height > o.height) return this; else if (this.height < o.height) return o; else if (this.axeLength > o.axeLength) return this; else if (this.axeLength < o.axeLength) return o; else return this; // default case } We can make a similar method for Wizards. But what if a Wizard meets an Ogre? We could of course make a method for that, comparing, say, just the heights. public Wizard battle(Ogre o) { if (this.height > o.height) return this; else if (this.height < o.height) return o; else return this; } And we'd make a similar one for Ogres that meet Wizard. But things get out of hand if we have to add more character types to the program. This is where I get stuck. One obvious solution is to create a Character class with the common traits. Ogre and Wizard inherit from the Character and extend it to include the other traits that define each one. public class Character { int height; public Character battle(Character c) { if (this.height > c.height) return this; else if (this.height < c.height) return c; else return this; } } Is there a better way to organize the classes? I've looked at the strategy pattern and the mediator pattern, but I'm not sure how either of them (if any) could help here. My goal is to reach some kind of common battle method, so that if an Ogre meets an Ogre it uses the Ogre-vs-Ogre battle, but if an Ogre meets a Wizard, it uses a more generic one. Further, what if the characters that meet share no common traits? How can we decide who wins a battle?

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  • for cycle not works allright

    - by joseph
    Hello. I call addNotify() method in class that I posted here. The problem is, that when I call addNotify() as it is in the code, setKeys(objs) do nothing. Nothing appears in my explorer of running app. But when I call addNotify()without loop(for int....), and add only one item to ArrayList, it shows that one item correctly. Does anybody knows where can be problem? See the cede class ProjectsNode extends Children.Keys{ private ArrayList objs = new ArrayList(); public ProjectsNode() { } @Override protected Node[] createNodes(Object o) { MainProject obj = (MainProject) o; AbstractNode result = new AbstractNode (new DiagramsNode(), Lookups.singleton(obj)); result.setDisplayName (obj.getName()); return new Node[] { result }; } @Override protected void addNotify() { //this loop causes nothing appears in my explorer. //but when I replace this loop by single line "objs.add(new MainProject("project1000"));", it shows that one item in explorer for (int i=0;i==10;i++){ objs.add(new MainProject("project1000")); } setKeys (objs); } }

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  • File.Move does not inherit permissions from target directory?

    - by Joseph Kingry
    In case something goes wrong in creating a file, I've been writing to a temporary file and then moving to the destination. Something like: var destination = @"C:\foo\bar.txt"; var tempFile = Path.GetTempFileName(); using (var stream = File.OpenWrite(tempFile)) { // write to file here here } string backupFile = null; try { var dir = Path.GetDirectoryName(destination); if (!Directory.Exists(dir)) { Directory.CreateDirectory(dir); Util.SetPermissions(dir); } if (File.Exists(destination)) { backupFile = Path.Combine(Path.GetTempPath(), new Guid().ToString()); File.Move(destination, backupFile); } File.Move(tempFile, destination); if (backupFile != null) { File.Delete(backupFile); } } catch(IOException) { if(backupFile != null && !File.Exists(destination) && File.Exists(backupFile)) { File.Move(backupFile, destination); } } The problem is that the new "bar.txt" in this case does not inherit permissions from the "C:\foo" directory. Yet if I create a file via explorer/notepad etc directly in the "C:\foo" there's no issues, so I believe the permissions are correctly set on "C:\foo". Update Found Inherited permissions are not automatically updated when you move folders, maybe it applies to folders as well. Now looking for a way to force an update of file permissions. Is there a better way overall of doing this?

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  • TypeError: Error #2007: Parameter child must be non-null.

    - by Bobby Francis Joseph
    I am running the following piece of code: package { import fl.controls.Button; import fl.controls.Label; import fl.controls.RadioButton; import fl.controls.RadioButtonGroup; import flash.display.Sprite; import flash.events.MouseEvent; import flash.text.TextFieldAutoSize; public class RadioButtonExample extends Sprite { private var j:uint; private var padding:uint = 10; private var currHeight:uint = 0; private var verticalSpacing:uint = 30; private var rbg:RadioButtonGroup; private var questionLabel:Label; private var answerLabel:Label; private var question:String = "What day is known internationally as Speak Like A Pirate Day?"; private var answers:Array = [ "August 12", "March 4", "September 19", "June 22" ]; public function RadioButtonExample() { setupQuiz(); } private function setupQuiz():void { setupQuestionLabel(); setupRadioButtons(); setupButton(); setupAnswerLabel(); } private function setupQuestionLabel():void { questionLabel = new Label(); questionLabel.text = question; questionLabel.autoSize = TextFieldAutoSize.LEFT; questionLabel.move(padding, padding + currHeight); currHeight += verticalSpacing; addChild(questionLabel); } private function setupAnswerLabel():void { answerLabel = new Label(); answerLabel.text = ""; answerLabel.autoSize = TextFieldAutoSize.LEFT; answerLabel.move(padding + 120, padding + currHeight); addChild(answerLabel); } private function setupRadioButtons():void { rbg = new RadioButtonGroup("question1"); createRadioButton(answers[0], rbg); createRadioButton(answers[1], rbg); createRadioButton(answers[2], rbg); createRadioButton(answers[3], rbg); } private function setupButton():void { var b:Button = new Button(); b.move(padding, padding + currHeight); b.label = "Check Answer"; b.addEventListener(MouseEvent.CLICK, checkAnswer); addChild(b); } private function createRadioButton(rbLabel:String, rbg:RadioButtonGroup):void { var rb:RadioButton = new RadioButton(); rb.group = rbg; rb.label = rbLabel; rb.move(padding, padding + currHeight); addChild(rb); currHeight += verticalSpacing; } private function checkAnswer(e:MouseEvent):void { if (rbg.selection == null) { return; } var resultStr:String = (rbg.selection.label == answers[2]) ? "Correct" : "Incorrect"; answerLabel.text = resultStr; } } } This is from Adobe Livedocs. http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/ I have added a Radiobutton to stage and then deleted it so that its there in the library. However I am getting the following error TypeError: Error #2007: Parameter child must be non-null. at flash.display::DisplayObjectContainer/addChildAt() at fl.controls::BaseButton/fl.controls:BaseButton::drawBackground() at fl.controls::LabelButton/fl.controls:LabelButton::draw() at fl.controls::Button/fl.controls:Button::draw() at fl.core::UIComponent/::callLaterDispatcher() Can anyone tell me what is going on and how to remove this error.

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  • changing button tag border color

    - by rashmi
    dear all, i have loaded image in border less button tag when button is selected with tab key i get brown color rectangle around image. how do i change color of that rectangle from brown to white. and is that possible to have white rectangle with inner and outer shadow of rectangle with blue. please help. here is my code snippet. <td align=center valign=middle > <figure> <button style="background-color:black; height:160px;width:160px ; border:none"><img src="F:\rashmi\icons_tv\Help_Normal.png" > </button> <figcaption><font size="5" color="white" style="font-weight:bold"><center>help</center></font></figcaption> </figure> </td>

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  • Help with filetype association!

    - by Zachary Brown
    I have the actual assoication part down, but when I open the file that is associated with my Python program, how do I get the filepath of the file opened? I think it is something like sys.argv? But that just returns the path to the python program, not the associated file.

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  • Perl script to print out cars model and car color

    - by Gary Liggons
    I am tying to create a perl script to printout car models and colors, and the data is below. I want to know if there is anyway to make the car model heading a field so that I can print it any time I want to? the data below is a csv file. the way I want the data to look on a report is below as well This is how the data looks* Chevy blue,1978,Washington brown,1989,Dallas black,2001,Queens white,2003,Manhattan Toyota red,2003,Bronx green,2004,Queens brown,2002,Brooklyn black,1999,Harlem ****This is how I am trying to get the data to look in a report**** Car Model:Toyota Color:Red Year:2002 City: Queens

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  • What alternatives are there in OS projects for c# similar to Joomla/Mambo/Drupal?

    - by Joseph
    I'm beginning a project with a client to build a web application and I'm a little stuck on which solution to go with. I've used Joomla for many clients in the past, but this client has specific requests that I KNOW I'm going to have to build myself. The problem I'm facing is that I work full time under the .NET spectrum and while I am a novice developer in PHP, and I've been studying Joomla's plug in architecture for about a month now, I am a lot more comfortable building something in ASP.NET than I am in PHP. My question is, what OS projects are out there that have a similar community following as Joomla/Mambo/Drupal, along with a plug in architecture that is somewhat akin to Joomla as well? I don't really have the time to build out a full blown CMS system in ASP.NET, but if something already exists that can give me X% (25%, 50%, something) of what Joomla has that will at least get me on the right path. Joomla just has too many extensions and too much of a community backing for me to pass it up if there's not something comparable in the ASP.NET realm.

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  • How to add a "handle bar" to a sliding div

    - by Josh Brown
    I have a small splash page and have a browser-wide div that acts as a wrapper and have a div inside of #wrapper that is attached to a $.click(); event to slide the wrapper div out to view the browser-size background photo. I'm wanting to implement a small button/link that will slide in on the bottom right corner after the wrapper div is hidden. I know it is probably mainly CSS, but am needing some help. Thanks in advance for your help! PS: Using jQuery as my framework.

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  • Why can't I pass self as a named argument to an instance method in Python?

    - by Joseph Garvin
    This works: >>> def bar(x, y): ... print x, y ... >>> bar(y=3, x=1) 1 3 And this works: >>> class foo(object): ... def bar(self, x, y): ... print x, y ... >>> z = foo() >>> z.bar(y=3, x=1) 1 3 And even this works: >>> foo.bar(z, y=3, x=1) 1 3 But why doesn't this work? >>> foo.bar(self=z, y=3, x=1) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: unbound method bar() must be called with foo instance as first argument (got nothing instead) This makes metaprogramming more difficult, because it requires special case handling. I'm curious if it's somehow necessary by Python's semantics or just an artifact of implementation.

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