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• MVC Implementation PHP Zend PDF generation

  - by zod

  Am using Zend framework and PHP Am going to generate a PDF using Zend . So the View is PDF.There is no PHTML. But if i dont use PHTML in view , is it a perfect MVC? if i want to be a perfect MVC shall i do the db retrieval and variable declaration and assigning in controller and use view and use all pdf functions in view phtml file will it make a perfect MVC? What is the advantage of MVC in this case? :-) can i do the include of zend pdf in phtml file or controller php file? what is the difference ?

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• Can't get expand_aliases to take effect

  - by sachmet

  I can't get expand_aliases to take effect in bash. I've tried a lot of different things, and nothing works. Here's the simple test case: /bin/bash -c 'shopt -s expand_aliases; alias cdtmp="cd /tmp"; alias; cdtmp; pwd;' And the output: $ /bin/bash -c 'shopt -s expand_aliases; alias cdtmp="cd /tmp"; alias; cdtmp; pwd;' alias cdtmp='cd /tmp' /bin/bash: cdtmp: command not found /home/user $ /bin/bash --version GNU bash, version 3.2.25(1)-release (i686-redhat-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. (Yes, I'm using shopt instead of the -O option to bash, just to prove it's being done.) Any ideas?

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• How can I set a field to null in a Pre-Update Plugin

  - by Juergen

  I developed a Pre-Update Plugin for the Case entity. In this plugin I want to set a string field to a new value. It works smoothly if the new value is not null. But if the new value si null, it is just ignored. This works: Incident caseTarget = ((Entity) localContext.PluginExecutionContext.InputParameters["Target"]).ToEntity<Incident>(); caseTarget.ProductSerialNumber = "new value"; After the execution of the plugin, the ProductSerialNumber field has value "new value". This doesn't work: Incident caseTarget = ((Entity) localContext.PluginExecutionContext.InputParameters["Target"]).ToEntity<Incident>(); caseTarget.ProductSerialNumber = null; After the execution of the plugin, the ProductSerialNumber field has still its old value. How can I set the target's field to null?

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• What is the equivalent to Java's canvas object in C#?

  - by Winston

  I'm working on creating a basic application that will let a user draw (using a series of points) and I plan to do something with these points. If this were Java, I think I would probably use a canvas object and some Java2D calls to draw what I want. All the tutorials I've read on C#/Drawing involve writing your own paint method and adding it to the paint event for the form. However, I'm interested in having some traditional Form controls as well and I don't want to be drawing over them. So, is there a "Canvas" object where I can constrain what I'm drawing on? Also, is WinForms a poor choice given this use case? Would WPF have more features that would help enable me to do what I want? Or Silverlight?

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• Shark tool on iphone crashes

  - by Joey

  Hi, I am trying to use Shark to profile my app. However, it crashes after I hit "stop" and it analyzes and then goes to "load session". Only once when I decided not to select my app but chose to target "everything" did it actually display some trace. However, I could not reproduce this case. Does anyone have any idea what might be going wrong? Could it be something to do with the wrong version of Shark or my SDK or some other detail? I have the latest SDK and am running 3.1.3 on the phone. The various documentation I've found on google or via Apple's docs don't seem to be terribly helpful, so if anyone has found some that's useful, I'd love to see it. Thanks.

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• Accurate Timings with Oscilloscopes on PC

  - by Paul Bullough

  In the world of embedded software (firmware) it is fairly common to observe the order of events, take timings and optimise a program by getting it to waggle PIO lines and capturing their behavior on an oscilloscope. In days gone by it was possible to toggle pins on the serial and parallel ports to achieve much the same thing on PC-based software. This made it possible to capture host PC-based software events and firmware events on the same trace and examine host software/firmware interactions. Now, my new laptop ... no serial or parallel ports! This is increasingly the case. So, does anyone have any suggestions as to go about emitting accurate timing signals off a "modern" PC? It strikes me that we don't have any immediately programmable, lag-free output pins left. The solution needs to run off a laptop, so using add-on cards that only plug into desktops are not permitted.

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• Set binding for DataTemplate components in code

  - by Chouppy

  Hi; sorry if I'm not clear, it's not really clear in my head too (especially after trying to find my way in other posts :p) What I'm willing to do is creating DataGrids in code, with zero to numerous columns containing a button, which will call one same function but with a "parameter" (different for each column). Here is what I got so far : DataGrid created in code DataTemplate defined in the xaml resources (with a button) DataGridTemplateColumn which uses the above DataTemplate Is it possible to bind the button's properties (in the DataTemplate), to the DataGridTemplateColumn properties (in my case, the column header would be ok), and how? Is there a way to get an access to the DataTemplate components (the button for example) in code, and modify their properties? Is it possible (and not hazardous) to create a DataTemplate in code? I declared mine in xaml because I found a post advising to do so instead of code. Thanks for your help.

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• Is lock returned by ReentrantReadWriteLock equivalent to it's read and write locks?

  - by Todd

  Hello, I have been looking around for the answer to this, but no joy. In Java, is using the lock created by ReentrantReadWriteLock equivalent to getting the read and write locks as returned by readLock.lock() and writeLock.lock()? In other words, can I expect the read and write locks associated with the ReentrantReadWriteLock to be requested and held by synchronizing on the ReentrantReadWriteLock? My gut says "no" since any object can be used for synchronization. I wouldn't think that there would be special behavior for ReentrantReadWriteLock. However, special behavior is the corner case of which I may not be aware. Thanks, Todd

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• Rabbitmq 2.2 not working on Snow Leopard (SSL errors)

  - by ebeland

  When I start rabbitmq, I see the following message. I have Activating RabbitMQ plugins ... WARNING Undefined function crypto:des3_cbc_decrypt/5 WARNING Undefined function crypto:start/0 WARNING Undefined function ssl:close/1 WARNING Undefined function ssl:controlling_process/2 WARNING Undefined function ssl:peercert/1 WARNING Undefined function ssl:peername/1 WARNING Undefined function ssl:recv/3 WARNING Undefined function ssl:send/2 WARNING Undefined function ssl:sockname/1 WARNING Undefined function ssl:ssl_accept/3 0 plugins activated: I followed the advice here to install openssl and recompile erlang with a --with-ssl path set: http://old.nabble.com/2.1.1%3A-no-such-file-or-directory-crypto.app-message-prevents-broker-from-starting-td30011026.html When I recompiled erlang, I used the following .configure: ./configure \ --prefix=/usr/local/erlang/R13B04 \ --enable-smp-support \ --enable-threads \ --enable-darwin-64bit \ --with-ssl=/usr/include/openssl It compiled fine. Then, just in case, I reinstalled rabbit from macports. I still get the error. Am I using the wrong path for --with-ssl? Help?

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• Good development themes/environments for Gnome/kde/whatever?

  - by EvanAlm

  I've searched forever for good themes or customized versions of any type of x-server that is designed for development in terms of web productions/programming for all kind of stuffs. Features such as simplified workspace overviews, good tabbing support etc. For multimedia "UbuntuStudio" exists, and something like that but for programming instead. I know that it's possible to customize it by myself but I don't have the skills to make it all happen. Another reason why it's hard for me to customize it is that I simply do not know everything that would make it good for me. I've looked into gnome-shell and it has (according to me) superb workspace overview functions, but lacks in other spaces instead. Any help in finding a good solution for me in this case is appreciated. If some of you also have had this problem and found a solution that works for you, please tell me how you did :) Would love to solve this for once!

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• Will an Nginx as reverse proxy for Apache help on dynamic content only

  - by Saif Bechan

  I am planning to move all my static content to a CDN so on my server I only have dynamic content left. I now have Nginx set up as reverse proxy to Apache. The static request that came in where directly delivered by Nginx without having to go to Apache. In this case Nginx handled a large portion of the request and I can clearly see the necessity of Nginx. Now that I moved all the static content to another domain, is there still a need to have nginx in front of Apache. Because now all the request are by default dynamic requests and all go to Apache. Are there any other benefits of having Nginx and Apache running for only dynamic content. My dynamic content is PHP/MySQL Edit: To be clear: I now have Nginx as a reverse proxy. It delivers static and dynamic content. But I am moving my static files to a CDN. Do I then still need Nginx on my domain.

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• Why do C compilers prepend underscores to external names?

  - by Michael Burr

  I've been working in C for so long that the fact that compilers typically add an underscore to the start of an extern is just understood... However, another SO question today got me wondering about the real reason why the underscore is added. A wikipedia article claims that a reason is: It was common practice for C compilers to prepend a leading underscore to all external scope program identifiers to avert clashes with contributions from runtime language support I think there's at least a kernel of truth to this, but also it seems to no really answer the question, since if the underscore is added to all externs it won't help much with preventing clashes. Does anyone have good information on the rationale for the leading underscore? Is the added underscore part of the reason that the Unix creat() system call doesn't end with an 'e'? I've heard that early linkers on some platforms had a limit of 6 characters for names. If that's the case, then prepending an underscore to external names would seem to be a downright crazy idea (now I only have 5 characters to play with...).

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• fileinfo and mime types I've never heard of

  - by Jim

  I'm not a stranger to mime types but this is strange. Normally, a text file would have been considered to be of text/plain mime but now, after implementing fileinfo, this type of file is now considered to be "text/x-pascal". I'm a little concerned because I need to be sure that I get the correct mime types set before allowing users to upload with it. Is there a cheat sheet that will give me all of the "common" mimes as they are interpreted by fileinfo? Sinan provided a link that lists all of the more common mimes. If you look at this list, you will see that a .txt file is of text/plain mime but in my case, a plain-jane text file is interpreted as text/pascal.

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• How do I migrate a ManyToOne to a ManyToMany relationship in Hibernate?

  - by spderosso

  I have a instance field of a class X that is mapped using Hibernate as a Many to One relationship. E.g: public class X{ ... @ManyToOne(optional=false) private Y iField; ... } That is correctly working with a particular schema. I know want to change this instance field iField to a List and a Many to Many relationship. public class X{ ... @ManyToMany(optional=false) private List<Y> iField; ... } What steps should I follow? Do I have to change the schema? in which way? In case you need more info let me know. Thanks!

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• Hierarchical animations in DirectX and handling seperate animations on the same mesh?

  - by meds

  I have a hierarchical animated model in DirectX which loads and animates based on the following DirectX sample: http://msdn.microsoft.com/en-us/library/ee418677%28VS.85%29.aspx As good as the sample is it does not really go into some of the details of animation that I'd like. For example, if I have a mesh which has a running animation and a throwing animation as seperate animation sets how can I get the throwing animation to occur for bones above the hip and the walking animation to occur for bones underneath the hip? Also if I wanted to for example have the person lean left or right would I simply have to find the bone for the hip and multiplay a rotation matrix by its matrix? In this case I think the matrix is m_amxBoneOffsets?

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• How do I use TrueType fonts with LaTeX

  - by harper

  I need to use a font family in my LaTeX documents, that is available as 18 .TTF (TrueTypeFont) files. Where do I have to copy the files in my MiKTeX 2.8 installation? How Do I make the fonts to available for LaTeX? I usually use pdfLaTeX. I read in Truetype-Fonts in LaTeX that TTF fonts are available without creating all the .TFM files. What is necessary for this case? Can I install the fonts in the local-texfm directory? I would like to isolate the system installation and my manually added stuff. Probably it would be easier to copy this font family on another installation.

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• Graphics.FromHwnd(IntPtr.Zero) returns null, why?

  - by Martin Moser

  I'm currently investigating a problem with a 3rd party component (DevExpress) in my application. My issue is quite similar to this one DevExpress KB article. I get the same exception with more less the same stacktrace. So I used .NET Reflector to find out, what may be null in this scenario, and the only object which is a candiate to be null is Graphics. This is created with Graphics.FromHwnd(IntPtr.Zero). Because I don't have a broad knowledge about GDI, I would like to know if somebody can tell me possible scenarios when this may return null... I tried to reproduce it in a scenario where windows is out of GDI handle's, but then I'm getting a "out of handles" - exception at least once, which is not the case in the issue I'm investigating tia, Martin

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• Freelancer's problem and legal actions

  - by user198003

  Hi, Last year, I worked as a free lancer on one project. Unfortunately, person I worked for, decided that he is not happy about my work, and he decided to fired me. After 7 months, he called me, and ask to me return "his" money. In any other case, he will sue me. His version is that I have to give him 1500 euros, but my version is that he own me another 1500. I have no contract, only emails and Excel file with counted hours. What do I have to do? I don't want to give him back 1500, because it was my work, and his bad management. Also, I do not want my 1500, because I think it's not fair from my side. What should I do?

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• Should I update an application when a used framework release a new version?

  - by Alex

  I have an application that use several libraries and frameworks, should I update my application to use the latest version of those frameworks when a new stable version is available? For example, migrate from python 2.x to python 3.x, or from spring 2.5 to spring 3.0, but the question es very general, not language specific. If I keep the application updated to use the latest stable frameworks versions then I will have new features available in case I need them. If I don't, then may be in a future I will need to do the update and it will be a lot of work to update the application. Is there any best practice about this?

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• How to stop ReSharper from showing error on a lambda expression where Action is expected?

  - by carlmon

  In Silverlight, System.Windows.Threading's Dispatcher.BeginInvoke() takes an Action<T> or a delegate to invoke. .NET allows me to pass just the lambda expression. but ReSharper sees it as an error, saying "Cannot resolve method 'BeginInvoke(lambda expression)'": Dispatcher.BeginInvoke(() => { DoSomething(); }) The error goes away if I explicitly create the Action around the expression like this: Dispatcher.BeginInvoke(new Action<object>(o => { DoSomething(); })); I prefer the least amount of code in this case for the best readability. Is there a way to disable this specific ReSharper error notification? I tried some of the options, but could not find it. Thanks, Carl

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• Is man-in-the-middle attack a security threat during SSH authentication using keys?

  - by JP19

  Hi, I am no expert in network security, so pardon if this question is not very smart :). I am automating logins to some machines using ssh. I am currently avoiding host-key warnings using StrictHostKeyChecking no. I naively understand that someone can impersonate as the server and I risk losing my password to him if that were the case. However, if I am using only public/private Key based authentication ( using PasswordAuthentication no ), can the intruder still cause harm? So basically, with ssh -o "StrictHostKeyChecking no" -o "PasswordAuthentication no" : 1) Can the intruder decipher my private key? 2) Are there any other security threats? regards, JP

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• Android Class which extends Dialog, how to clear TextViews before it is displayed

  - by wuntee

  I have a class that extends android.app.Dialog, the layout is done in an xml file, and the setup (button listeners, etc) is done on the onCreate method. My problem is that whenever the dialog is displayed, then dismissed, and displayed again, the Editable TextViews are still populated with the information that was displayed previously. What is the common way to clear these text fields? Remember - this is a separate class that extends Dialog - so there is no 'onDialogCreate' like Activity has. Or, perhaps I am extending the wrong class? There is just a lot of processing being done, and do not want to have all the code in the main Activity. I would like it to be in a separate Class. I tried to extend AlertDialog, but it does not create the border like Dialog does. Any help would be great. The dialog is shown via the Activity: protected Dialog onCreateDialog(int id) { switch(id){ case DIALOG_NEW_SAFE: return(new NewSafeDialog(this)); default: return(null); } }

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• Android - When to use Service

  - by Chris

  This question is related to my previous question: http://stackoverflow.com/questions/2786720/android-service-ping-url So I have an Android app that on the click of a button, opens up a web page. Now, in the background I want to call another http url for gathering stats. My question is does this have to be a service? I know a service is for background tasks that run for an indefinite period of time, while the user is busy doing something else. In my case, all I really need is to get the URL in the background, not show it to the user, instead show the web page to the user. Can I just not write code to get contents of the http url and fire up the activity that displays the web page? Coz all I want is to get the url in the background and be done with it. Or does this have to be done using the Service class? I am confused. Thanks Chris

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• PHP reading 'get' variable that may or may not have been set

  - by thecoshman

  Simply put, if you try to read the value of a get variable, what happens if said variable had not be put into the URL. Example: you request the page test.php, in that file it tries to read the value of $_GET['message']. What happens in this case? dose the value just get returned as ''? Dose this mean, that if I am always expecting a value to be entered, and am not willing to accept a value of '' that I can just do something like $foo = $_GET['bar']; if($foo == ''){ // Handle my 'error' } else { // $foo should now have a value that I can work with } Please bare in mind I know that I could use isset($_GET['bar']) But I don't just want to know if it is set, I don't care if it is or not, I just care if it has a value that is more then just an empty string.

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• ActiveMQ - Removing queues programatically

  - by Eduardo Z.

  Fellow StackOverflowers, is there a way for me to remove a queue or a topic in ActiveMQ programatically? I am using ActiveMQ's standard persistency, and my application requires that, on startup, all new queues be dynamically re-created (unless there are messages stored in the queue, in which case, the queue should remain to exist). I am also creating all queues programatically through sessions. Is there an equivalent to that procedure, only to delete a queue? Querying and iterating through the existing queues would also be useful, but i haven't found a way to do that yet. Please help an ActiveMQ noob! =)

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