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• How to integrate yahoo user interface with cakePHP

  - by ygmehboob

  Hi all I am very new to cakePHP, I want to add YUI accordion in the default layout of my application. A simple explanation could be like this - I have a table 'lecturers' in my database. I have baked the model lecturer (file) I have baked the controller lecturers_controller (file) I have baked the view lecturers (folder) I need to override the default layout but I want to add YUI 3 accordion sothat the table name lecturers will be on top, after clicking on the top division it will slidedown and will show me the column name of lecturer table. Is there anyone who could suggest me how to integrate the YUI 3 accordion - Do I have to write a helper for this or simply after copying the YUI 3 library I could code this in the default.ctp file. I am really confused as I could hardly get a full tutorial on this topic. Thank you in advance ................

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• Declaring an enum within a class

  - by bporter

  In the following code snippet, the Color enum is declared within the Car class in order to limit the scope of the enum and to try not to "pollute" the global namespace. class Car { public: enum Color { RED, BLUE, WHITE }; void SetColor( Car::Color color ) { _color = color; } Car::Color GetColor() const { return _color; } private: Car::Color _color; }; (1) Is this a good way to limit the scope of the Color enum? Or, should I declare it outside of the Car class, but possibly within its own namespace or struct? I just came across this article today, which advocates the latter and discusses some nice points about enums: http://gamesfromwithin.com/stupid-c-tricks-2-better-enums. (2) In this example, when working within the class, is it best to code the enum as Car::Color, or would just Color suffice? (I assume the former is better, just in case there is another Color enum declared in the global namespace. That way, at least, we are explicit about the enum to we are referring.) Thanks in advance for any input on this.

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• Providing updates during a long Rails controller action

  - by highBandWidth

  I have an action that takes a long time. I want to be able to provide updates during the process so the user is not confused as to whether he lost the connection or something. Can I do something like this: class HeavyLiftingController < ApplicationController def data_mine render_update :js=>"alert('Just starting!')" # do some complicated find etc. render_update :js=>"alert('Found the records!')" # do some processing ... render_update :js=>"alert('Done processig')" # send @results to view end end

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• Scrollbar Problem

  - by Hitesh Gupta

  Hi All, There is a datagrid on my page which contains a lot of data. When i click on any row , the user is redirected to a page where he can edit the content of that row. But suppose I am at the bottom of page and then if I click on any row, the scrollbar of browser automatically shifts upwards which causes illusion for the user and make him confused if he has clicked on some other row. Is there any solution to this so that the position of scrollbar does not change after clicking on any data in datagrid. Thanks in advance.

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• Creating Pages or Windows in WPF

  - by cmptrer

  Hey all, I'm new to using WPF. I have the following program I want to create: -Application opens up with one button -User clicks button and it takes them to a new page with various input. I'm confused about how I need to do this. I tried opening a new window, but I don't want a window to open up, I want it to be all one Window. I tried creating a new page and navigating to it using NavigationService but couldn't get it to work. Basically I want to create a workflow where the user enters some stuff, clicks the next button and is taken to a new page to enter some more information. Can anyone point me in the right direction?

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• Which Subversion do I install for Windows?

  - by johnny

  I was reading this article on Coding Horror: http://www.codinghorror.com/blog/2008/04/setting-up-subversion-on-windows.html I went to the downloads and am confused. I would have just downloaded the first entry but I am afraid it would break my server or something if I don't have apache. We use IIS only and I wouldn't want to break it somehow. I don't even need a web or webdav front end. Which one should I install on this page, please: http://subversion.tigris.org/servlets/ProjectDocumentList?folderID=91 thank you for any help. edit: thanks for information, but I am hoping to stay free with the "regular" subversion. I plan on using TortoiseSVN for the client.

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• I can't Distinct, Sum, or Count from 3 tables with group clauses

  - by Rio Inggit Dharmawangsa

  I'm still learning linq, now i'm getting confused. I need data for report from 3 tables, I get the result, but it's duplicate. I have used distinct but it's not working, n I need data to be sum still not working. Here is my query, can somebody explain what's wrong? var report= (from u in myDb.TBL_TRANSAKSI_MKN_MNMs.AsEnumerable() where u.TGL_TRANSAKSI.Value.Date.Equals(dateTimePicker1.Value.Date) join l in myDb.TBL_DETAIL_TRANSAKSIs.AsEnumerable() on u.ID_NOTA equals l.ID_NOTA join m in myDb.TBL_MKN_MNMs.AsEnumerable() on l.ID_MKN_MNM equals m.ID_MKN_MNM group new { u, l, m } by new { m.NAMA_MKN_MNM, m.HARGA_JUAL, u.TGL_TRANSAKSI, l.ID_MKN_MNM, u.USERNAME, l.Jumlah } into grp select new { MakanMinum = grp.Key.NAMA_MKN_MNM, HargaJual = grp.Key.HARGA_JUAL, Stok = grp.Sum(groupedthing => groupedthing.l.Jumlah), Tanggal = grp.Key.TGL_TRANSAKSI, Jumlah =(grp.Key.HARGA_JUAL * grp.Sum(groupedthing => groupedthing.l.Jumlah)), Total = grp.Sum(grouptotal => grp.Key.HARGA_JUAL * grp.Sum(groupedthing => groupedthing.l.Jumlah)), Username = grp.Key.USERNAME }).Distinct();

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• .htaccess - alias all www-only requests to subdirectory

  - by CodeMoose

  Trying to install the wonderful Concrete5 CMS to use as my main site engine - the problem is it has about 15 different files and directories, and they clutter up my root. I'd really like to move it to a /_concrete/ subdirectory, and still maintain it in the domain root. htaccess has never been my strong suit - after a lot of research and learning, and a lot of error 500s, my frustration is overriding my pride and I'm posting here. Here's exactly what I'm trying to accomplish: Any requests that come through www.domain.com are forwarded to www.domain.com/_concrete/, except in the case of an existing file. The end-user URL shouldn't change - they will still see the site as www.domain.com, even though they're being served www.domain.com/_concrete/. Multiple subdomains exist on this site as sub-folders within the root - thus, only requests coming through www.domain.com should be redirected. Here's the closest I got with my htaccess, which produces an error 500: RewriteEngine On RewriteCond %{HTTP_HOST} ^(www\.)?domain\.com [NC] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !^_concrete RewriteRule ^(.*)$ _concrete/$1 [L,QSA] This is the result of 4 hours of sweat and blood (mostly blood), so I have to be close. I'm hoping one of your fine minds can point out a stupid mistake and put this thing to rest swiftly. Thanks for your time! Addendum: I previously posted .htaccess - alias domain root to subfolder a while ago, which got me started. Please don't fall into the trap of thinking it's a duplicate.

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• OpenGL gluLookAt issues

  - by Chris D

  I am trying to switch my space invaders game to a first person view, i.e. a view of the world from the ship. I am getting a bit confused about what point I should be looking at. I am currently using these parameters in gluLookAt: GL11.glMatrixMode(GL11.GL_MODELVIEW); GL11.glLoadIdentity(); GLU.gluLookAt(ship3dPos.x, ship3dPos.y, ship3dPos.z,400.0f, 600.0f,-50.0f, 0.0f, 1.0f,-0.0f); Where ship3dPos is a Vector3f. I'm not sure what I'm supposed to set parameters 4,5 and 6 to, to get a view of the whole world(window is 800/600). I want to have a view of say 100.0 wide from the ships perspective, with this view moving along the x-axis as the player moves the ship. Thanks

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• how to find out how much application memory django process is (or will be) taking?

  - by photographer

  There are different "Application memory" options (like 80MB...200MB) in django-friendly hosting called webfaction and I'm confused deciding which one I should buy. Could someone please walk me through the ideas on how to figure out how much memory my project might require (excluding operating system, the main apache server and the database servers memory requirements)? I understand in theory I'll need to perform some kind of load testing, but thought there might be ways to calculate that in advance with some simple/relatively easy understandable approach. I don't know how hard they enforce application memory usage limit, and another question is: what will happen if more users came to the site and more threads started than what I expected? Will the application crash? Or will delays just become uncomfortable? And - no, application is not ready yet (I can't measure anything right now). Development environment if it matters is Winodows 7, 64-bit. Hosting itself is some kind of Linux I think. (Sorry if it's not a stackoverflow question.)

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• Agile web development with Rails 4 interface difficulties

  - by Luke Annison

  I've been following along with the examples in the book in making a online catalog and am having a couple of discouraging difficulties in Chapter 8 task C: Catalog display. I have input the code for the stylesheets as instructed but it has created a slightly skewed result as compared to what is shown in the book. Whilst minor and aesthetic in nature its a little shock to my confidence and slightly irritating when trying to carry on through the book. I have too little rep to post a pic, but heres the link: http://s11.postimage.org/3pwlzfiwj/Screen_Shot_2012_10_08_at_22_29_56.png) As you can see the boarder seems a little confused and the image at the top is covering the header text. I've been through the code time and time again but can't seem find out where I've gone wrong. Could anybody give me some clues?

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• C++: Define simple string?

  - by Jason

  This thing is really wracking my mind. I'm learning C++ and I wanted to define a constant that I can use in another function, A short answer on how to do this will be fine.. Lets say at the beginning of my code I want to define this constant: //After #includes bool OS = 1; //1 = linux if (OS) { const ??? = "clear"; } else { const ??? = "cls"; } I don't know what type to use to define the "clear" string... I'm so confused. Later on I want to use it within a function: int foo() { system(::cls); //:: for global return 0; } How would I define the string up top, and use the string down below? I heard char only had one character and things... I'm not sure how to use , since it says it's converting string into const char or something.

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• C# dll import function correctly

  - by poco

  I am trying to import a function from a c dll into C#. The c function looks like this unsigned short write_buffer( unsigned short device_number, unsigned short word_count, unsigned long buffer_link, unsigned short* buffer) my attempt at a C# import looks like this [DllImport("sslib32.dll", CharSet = CharSet.Ansi, SetLastError = true)] private static extern ushort write_buffer(ushort deviceNumber, ushort wordCount, UInt32 bufferLink, IntPtr buffer) In C# i have a Dictionary of messages that i would like to pass to this function. The Dictionary looks like this: Dictionary<string, List<ushort>> msgs I am a bit confused how to make a make a proper call to pass msgs as the buffer. deviceNumber is 2, wordCount is 32, and buffLink is 0. So i know the call should look something like this write_buffer(2,32,0, msgs[key]); Obviously i am getting an invalid argument for the IntPtr. What is the proper way to make this call?

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• Multi dimensional array with get image data

  - by Dave

  I'm really confused with an array im making, its gotten a bit confusing to follow but i believe its the only way for me to approach what im trying to do. My idea here is to store getImageData in an array so i can link each image to an array of data. This is how i create my array: var listObj = { id: uid, extra: [ ctx2.getImageData(abposx,abposy,imgwidth,imgheight) ] }; pixeld.push(listObj); So now im trying to run through the array "pixeld" to find the uid but i don't know how the syntax should be.... this is what i tried: for (j = (pixeld.length-1); j > -1; --j){ if(pixeld[j].extra.data[3] !==0){ //line 220 matches.push(pixeld[j].id); } } The problem is i get this error: Uncaught TypeError: Cannot read property '3' of undefined on line 220 I have marked which line is 220 in the for loop. Any one know what my mistake is ?

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• Getting started with a facebook application

  - by Cyclone

  I'm really new to Facebook application development, and I'm quite confused about application permissions and why the php sdk is so limiting and has so few precoded functions. First off, how do I check if a user has set proper permissions for my application, and if not, display that standard dialog immediately instead of using FBML and making them click the link? Secondly, how do I publish to a user's stream with the php apis? Finally, are there any good tutorial sites for making a php based canvas application that use the latest versions of all the sdks? Thank you for your help! I really don't see why so much of this is Javascript, it would really make much more sense to me to have things like: if(!$facebook->appHasPerm('publish_stream'){$facebook->showPermDialog('publish_stream');} I'd feel like I have much more control over the application if it worked like that.

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• Java Sound Clip Looping Frame Position

  - by InsertNickHere

  Hi, I have a little problem with a loopting clip: If you have a soundfile e.g. 20000 samples long, the frame position will not reset after looping, so I get values that are "out of bounds" of the original soundfile. As I want to draw a position marker on my waveform, I'm a bit confused how to achive. At this time I just get myClip.getLongFramePosition() but this does not work as described above. Does anyone have an idea how to fix that? Is there a possibility to count how often a clip was looped before? Regards

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• Forking Multiple Apps Under Python Subprocess

  - by noxtion

  Hello all. I have been looking through Google and SO for something that could help me solve this but I have run into a block. I am a bit new to Python but I am looking for a way to run multiple apps that will continuously run in the background. For example, I need 4 apps to start up with a param -appnum set to a different value. I would like to use python to count up and then start up a new app that will continue to run. I assumed I would use subprocess but I feel a bit overwhelmed by the documentation. I also plan to have the app print out sequences of numbers and would like to redirect this to a file. I noticed some of the SO questions talked about this, but I am a little confused on what to do. -Mike

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• What is the difference between an object's scope and it's context in javascript?

  - by DKinzer

  In the vernacular, scope and context have a lot in common. Which is why I get confused when I read references to both, such as in the quote below from an article on closures: Scope refers to where variables and functions are accessible, and in what context it is being executed. (@robertnyman) As far as I can tell, context is just a reference to an object. Can someone please explain what exactly is context, as used, for instance, in the jQuery syntax, $(selector, context). And is an object's scope the same at it's context?

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• C# Casting system.__comobject to class type

  - by ijrufus

  I have an Excel Add-In that I'm currently trying to set up a unit test framework for. For the unit tests I've followed this guide: http://blogs.msdn.com/b/varsha/archive/2010/08/17/writing-automated-test-cases-for-vsto-application.aspx It seems to work fine, until I want to return a class object from my interface. Specifying the class object as the return type throws a "return argument has an invalid type" exception when calling the method. Changing the return type from the class to an object allows me to call the method and get the object, but now I'm unable to cast it as the class and use it as intended, getting this exception message when I try: > Unable to cast COM object of type 'System.__ComObject' to class type > 'anaplan.Utility.XYCoordinates'. Instances of types that represent COM > components cannot be cast to types that do not represent COM > components; however they can be cast to interfaces as long as the > underlying COM component supports QueryInterface calls for the IID of > the interface. I've retrieved the Type name using VisualBasic.Information.TypeName and it's showing it as the class I expect. Is there any way to get the comobject cast back to the class? Or another way to access the properties it has? Or am I just being a bit stupid here?

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• How Do Sockets Work in C?

  - by kaybenleroll

  I am a bit confused about socket programming in C. You create a socket, bind it to an interface and an IP address and get it to listen. I found a couple of web resources on that, and understood it fine. In particular, I found an article Network programming under Unix systems to be very informative. What confuses me is the timing of data arriving on the socket. How can you tell when packets arrive, and how big the packet is, do you have to do all the heavy lifting yourself? My basic assumption here is that packets can be of variable length, so once binary data starts appearing down the socket, how do you begin to construct packets from that?

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• Comparing objects and inheritance

  - by ereOn

  Hi, In my program I have the following class hierarchy: class Base // Base is an abstract class { }; class A : public Base { }; class B : public Base { }; I would like to do the following: foo(const Base& one, const Base& two) { if (one == two) { // Do something } else { // Do something else } } I have issues regarding the operator==() here. Of course comparing an instance A and an instance of B makes no sense but comparing two instances of Base should be possible. (You can't compare a Dog and a Cat however you can compare two Animals) I would like the following results: A == B = false A == A = true or false, depending on the effective value of the two instances B == B = true or false, depending on the effective value of the two instances My question is: is this a good design/idea ? Is this even possible ? What functions should I write/overload ? My apologies if the question is obviously stupid or easy, I have some serious fever right now and my thinking abilities are somewhat limited :/ Thank you.

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• C++ Typing and OOP child classes

  - by Zack

  I'm a bit confused: If I have a base class A, and a class B which extends A, can a variable of the type A hold a value of the type B and vice versa? If yes, why? Aren't they completely different even if B is derived from A? How about type-safety? If this is possible, what things do I have to mind when taking use of this? How would this work out in terms of performance? Note: Sorry if I asked too many questions, just ignore them and just look out for those "marked" with the list decoration dot :) Also, this is not my homework. I'm a hobby programmer and have skills in scripting languages with OOP, yet I'm relatively new to OOP typing in C++.

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• method returning wrong variable

  - by cocoanewbie

  This class I'm working with has three instance variables I'm interested in, NSmutablearrays xArray yArray and zArray, there are also other NSmutablearrays, a, bArray and c. I just added accessors - (NSMutableArray *) xArray { return xArray; } ditto for y and z. However, it's returning yArray, zArray and bArray for some reason. Why is that happening? Okay, I just changed the names of the methods to GetXArray and everything seems to be returning the right variables. Now I'm really confused. How the heck did this happen and how do I prevent this from happening in the future?

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• Writing .NET in dynamic language?

  - by tillda

  I'm confused by the possibility of writing .NET in dynamic languages, such as (Iron)Ruby. Particularly, I've seen code in IronRuby that used generics (...foo[String]), but I'm not aware of this feature in Ruby as it seems nonsense to me in dynamic languages. So, when I write .NET app in IronRuby, how is it with type safety and compilation? I thought that it is just as dynamic as Ruby everywhere else. I thought that if the Ruby syntax is OK all the type checking would be done at the runtime. Also, as far as I know, .NET itself is type-oriented - there are classes that heavily utilize the mentioned generics. How is this handled? And what about delegates? In dynamic languages I can have almost function-spaghetti and sometimes, its just fine (like hacking UI in javascript). Or do I have to care even about generic delegates?

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• Alternatives to C++ Reference/Pointer Syntax

  - by Jon Purdy

  What languages other than C and C++ have explicit reference and pointer type qualifiers? People seem to be easily confused by the right-to-left reading order of types, where char*& is "a reference to a pointer to a character", or a "character-pointer reference"; do any languages with explicit references make use of a left-to-right reading order, such as &*char/ref ptr char? I'm working on a little language project, and legibility is one of my key concerns. It seems to me that this is one of those questions to which it's easy for a person but hard for a search engine to provide an answer. Thanks in advance!

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