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• Go, AppEngine: How to structure templates for application

  - by laslowh

  How are people handling the use of templates in their Go-based AppEngine applications? Specifically, I'm looking for a project structure that affords the following: Hierarchical (directory) structure of templates and partial templates Allow me to use HTML tools/editors on my templates (embedding template text in xxx.go files makes this difficult) Automatic reload of template text when on dev server Potential stumbling blocks are: template.ParseGlob() will not traverse recursively. For performance reasons it has been recommended not to upload your templates as raw text files (because those text files reside on different servers than executing code). Please note that I am not looking for a tutorial/examples of the use of the template package. This is more of an app structure question. That being said, if you have code that solves the above problems, I would love to see it. Thanks in advance.

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• File/module structure in Python

  - by keithjgrant

  So I'm just getting started with Python, and currently working my way through diveintopython.org. The code examples are nice, but the vast majority of them are little four-line snippets, and I want to see a little more of the big picture. As I understand it--and correct me if I'm wrong--each '.py' file becomes a "module", and a group of modules in a directory becomes a "package" (at least, it does if I create a __init__.py file in that directory). What is it if I don't have a __init__.py file? So what does each "module" file look like? Do I generally define only one class in the file? Does anything else go in that file besides the class definition and maybe a handful of import commands?

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• Error: cant find main class

  - by Vurb

  ok so im a newbie java dev using netbeans IDE 7.1.1 and im watching this tutorial and right off the bat i get an error in my program even after 5 retypes to make sure its exactly the same as in the video so anyways this is the error Error: Could not find or load main class javagame.JavaGame Java Result: 1 and this is the code i have written package JavaGame; import javax.swing.JFrame; public class JavaGame extends JFrame { public JavaGame(){ setTitle("java game"); setSize(500, 500); setResizable(false); setVisible(true); //setDefaultCloseOperation(); } public static void main(String[] args){ } }

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• Are all of the Oracle exceptions named?

  - by John O

  In particular, I've been trying to find the name of the ORA-0955 to improve code readability. Currently I'm using the following: EXCEPTION WHEN OTHERS THEN IF SQLCODE = -00955 What I would prefer is something like: EXCEPTION WHEN OBJECT_EXISTS THEN This seems cleaner to me and I would prefer that. But I've looked in SYS.STANDARD, and it lists relatively few named exceptions. Online documentation seems to mirror what's in SYS.STANDARD. Is there another package to look in? Some other resource?

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• How to prevent application thievery?

  - by Berdon Magnus

  Hey, I was wondering what the most effective way of preventing people from stealing my application (downloading a copy of the .apk online rather than buying it). I've spent a lot of time on one in particular (Droidbox) and won't be releasing Sync until I can guarantee that the people who are providing illegal copies of the pro version aren't able to. Anyone implemented this? I've tried checking my package signature verses an the signature of an unsigned copy but it appears to be the same - perhaps I'm doing something incorrectly here. I'm unsure whether people actually distribute the signed .apk in which case I don't think signature validation would work to begin with...

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• Why might someone say R is *NOT* a programming language? [closed]

  - by Tal Galili

  I came by the following comment today on twitter "R is not a programming language, it's a statistics package with the GUI missing." And I am wondering - Why not? What is "missing" in R to make it a "programming language" ? Update: For the protocol, I am a big fan of R, use it daily, and support it's existence. I now changed the name of this thread from "Why is R NOT a programming language?" to "Why might someone say R is NOT a programming language?" Which better reflects my motivation for this thread (which is, to know if R has any programmatical disadvantages that I might have not heard about).

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• Yahoo Astra flash component error BaseScrollPane not found

  - by Chris

  I'm trying to use the Astra library from Yahoo but I'm getting an error saying the base class BaseScrollPane is not found. It appears to be imported from fl.containers.BaseScrollPane, which leads me to believe it should be a part of the base flash 10 library and therefore should be available, but it appears to be missing. Is this part of a separate package from somewhere? Update: For what it's worth, I found the actual class files in the Configuration/Component Source folder on my hard drive, but adding that to the class path (as well as the Components directory) did no good. I ended up fixing the issue by dragging a scroll pane component to the stage from the Components window and then deleting it, but I'm not sure what exactly that action changed that made it work, and would like to know for future reference.

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• Maximum compression of a MSI install using WIX

  - by MX4399

  I used to build installs for an app with NSIS and the final self extractor was 1.2 MB. Now I need to use WIX due to operational needs and the same install comes out at 4.2 MB. I set the compressed flags as the docs and specs indicated on the package node. Using 7z to zip the MSI results in a 2.4 MB zip file. Question: How can I do a maximum compress on the MSI or create a small MSI (e.g. remove unneeded resources etc) ? Note - size is uber important and I have to use MSI/WIX now - this is a show stopper!

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• Enclosing multiple LaTeX documents

  - by InfiniteInt

  I am not sure if this question is suitable for superuser instead, but I'll ask anyway. Currently I'm writing on my documentation for my final project. I must append several other LaTeX documents as enclosure. They must be mentioned in the first Table of Contents as alphabetical appendix. I tried the package subfiles, but the subsequent TOC´s are always empty exept in case of translating them alone. Is there any other way to append multiple full documents with there own documentclass??

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• Should we or should we not check in the classes folder in WEB-INF directory into SVN?

  - by Vatsala

  I use SVN, and am learning how to use it along with eclipse IDE. The first time I add classes to my package, there is no problem, the generated class files get into SVN smoothly. The moment I edit them, I get this message - "WEB-INF/classes" is obstructed. I try the "clean-up" command and the clean up command says "WEB-INF/classes" folder is locked. I use TortoiseSVN as my SVN client. I know why this is happening. It probably because the Eclipse overwrites all the files while generating classes and then causes this - Is it inappropriate to commit the class files into SVN? If not, what should I do to commit these class files smoothly?

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• How do I replace "this" in Java with something that works.

  - by Luke Alderton

  I'm looking to get the showGUI() method work, the compiler says "this" is not a static variable and cannot be referenced from a static context, what would I use to replace "this"? I've tried test.main (test being the package it's in). The reason I'm using the static method showGUI() is because I need the method to be called from another static method, as well as the startup() method. Below are my two main classes. public class Main extends SingleFrameApplication { @Override protected void startup() { showGUI(); } @Override protected void configureWindow(java.awt.Window root) { } public static Main getApplication() { return Application.getInstance(Main.class); } public static void main(String[] args) { launch(Main.class, args); } public static void showGUI() { show(new GUI(this)); } } public class GUI extends FrameView { public GUI(SingleFrameApplication app) { super(app); initComponents(); } private void initComponents() { //all the GUI stuff is somehow defined here } }

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• R.id cannot be resolved

  - by Soren

  So I copied this tutorial example thing right from Google's android site and I ma getting an error that R.id cannot be resolved. Here is my Java file package com.TestApp.HelloWebView; import android.app.Activity; import android.os.Bundle; import android.webkit.WebView; public class HelloWebView extends Activity { WebView mWebView; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mWebView = (WebView) findViewById(R.id.webview); mWebView.getSettings().setJavaScriptEnabled(true); mWebView.loadUrl("http://www.google.com"); } } Here is my main.xml <?xml version="1.0" encoding="utf-8"?> <WebView android:id="@+id/webview" android:layout_width="fill_parent" android:layout_height="fill_parent"/>

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• Remote connect to mysql?

  - by chobo2

  Hi I don't use php or mysql but I am trying to upgrade a phpbb board I got but the one click installer forgot to install some stuff in the database so I can't upgrade to the newest version till I add the missing stuff. So I need to do a remote connect to mysql database but I am not sure how to do this or what software I need(free, and very easy to setup I don't want to spend much time on this). I don't really want to use phpmyadmin since I don't want to start setting up a virtual directory and whatever else it needs to be installed. Like I said I don't do php or mysql I just choose it since in my hosting package it was one click to install phpbb and I had a mysql database free. Thanks

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• How do I make this linkButton custom component work?

  - by Adam

  package { import mx.controls.LinkButton; import flash.text.TextLineMetrics; public class multiLineLinkButton extends LinkButton { override protected function createChildren():void { super.createChildren(); if (textField){ textField.wordWrap = true; textField.multiline = true; } } override public function measureText(s:String):TextLineMetrics { textField.text = s; var lineMetrics:TextLineMetrics = textField.getLineMetrics(0); lineMetrics.width = textField.textWidth; lineMetrics.height = textField.textHeight; return lineMetrics; } } my issue here is if you use this component you will see that the text is bunched up into a very small area. It does not fill the entire width of the linkButton. Anyone know why this is happening?

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• Deprecated Preference Activity method

  - by Adnan Nazir

  package com.adi.preferencedemotest; i am working on PreferenceActivity but when i call my preference xml(prefs.xml) with the help of addPreferencesFromResource it says this method is deprecated and "This function is not relevant for a modern fragment-based PreferenceActivity" is there any alternative of this method? how i can handle ? public class PrefsActivity extends PreferenceActivity { @SuppressWarnings("deprecation") <------- @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.prefs); <------- } } Note: may be my question rate as duplicated but i didn't find any.

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• Microsoft Access DB Connection

  - by sikas

  I have a Microsoft Access DB (2003) that I want to connect to it using C# .. The problem I'm facing is I don't have Access installed within the office package .. So I was wondering if it is possible to connect to it as a database to retrieve and update the tables .. Thanks. UPDATE I have received the error below: Error Detected: System.InvalidOperationException: The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine. at System.Data.OleDb.OleDbServicesWrapper.GetDataSource(OleDbConnectionString constr, DataSourceWrapper& datasrcWrapp er) at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInf o, DbConnectionPool pool, DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnection PoolGroup poolGroup) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory conne ctionFactory) at System.Data.OleDb.OleDbConnection.Open() at SampleNamespace.SampleClass.Main()

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• Is it OK to run an array with 22k strings in a PHP code on a shared web host?

  - by kuchikoo

  I'm new to writing code so kindly bear with me if this is a very noobish question. A couple of days back I asked a question about a PHP code that matches the the query entered by users on my website to an array stored within the PHP code and displays the matched queries. Here is the code I'm talking about Now I've ended up with a rather large list (over 22k) of strings that have to be stored in the array. Is it ok to run it like this? I'm hosting the site on a shared hostgator package, will this cause my site to crash? I don't know too much about DBs but can I somehow store this on MySQL instead of having it in the code?

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• Is it good practice to export variables in Perl?

  - by gvkv

  I'm finding it very convenient to pass configuration and other data that is read or calculated once but then used many times throughout a program by using Perl's use mechanism. I'm doing this by exporting a hash into the caller's namespace. For example: package Myconfiguration; my %config; sub import { my $callpkg = caller(0); my $expsym = $_[1]; configure() unless %config; *{"$callpkg\::$expsym"} = \%config; } and then in other modules: use MyConfiguration (loc_config_sym); if ( $loc_config_sym{paramater} ) { # ... do stuff ... } However, I'm not sure about this as a best practice. Is it better to add a method that returns a hash ref with the data? Something else?

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• Not getting image in h:graphicImage in JSF

  - by Nitesh Panchal

  Hello, I have this very strange error with h:graphicImage This code works fine :- <h:graphicImage value="/Common/Images/#{item.templatePicName}"/> And this one doesn't :- <h:graphicImage alt="${app:getCommonImagePath(item.templatePicName)}" value="${app:getCommonImagePath(item.templatePicName)}" /> It only shows alt value /Common/Images/Sunset.jpg which is perfectly fine and works in 1st case. Then why doesn't it work in 2nd case? There are no problems with my images. They are present in right directory. here getCommonImagePath is my custom EL function, whose definition is : package Common; public final class AppDeployment { private AppDeployment(){ //hide constructor } private static String commonImageFolderPath = "/Common/Images/"; public static String getCommonImagePath(String picName){ return commonImageFolderPath + picName; } }

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• What is a Custom Class?

  - by John Saunders

  Many questions here on SO ask about custom classes. I, on the other hand, have no idea what they're talking about. "Custom class" seems to mean the same thing I mean when I say "class". What did I miss, back in the '80s, that keeps me from understanding? I know that it's possible to purchase a packaged system - for Accounting, ERP, or something like that. You can then customize it, or add "custom code" to make the package do things that are specific to your business. But that doesn't describe the process used in writing a .NET program. In this case, the entire purpose of the .NET Framework is to allow us to write our own code. There is nothing useful out of the box.

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• Fatal error: Call to undefined function mysqli_connect()

  - by Jack

  I have installed WAMP. I am using Tomcat 6 to run my PHP scripts. I am also using JavaBridge.war and I have copied my php scripts into \webapp\JavaBridge\project. I have removed the semicolon from php.ini file before the statements extension=php_mysqli.dll extension=php_mysql.dll I have added C:\wamp\bin into my PATH env variable. I have copied all dll's from C:\wamp\bin\php\php5.3.0\ext into C:\windows\system32 I am still getting this error. Fatal error: Call to undefined function mysqli_connect() in C:\Program Files\apache-tomcat-6.0.26\webapps\JavaBridge\project\pf_query.php on line 534 Note - I dont get this error when I run my PHP script from Apache 2.2.11 of the WAMP package.

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• Using Google's Contacts API's, how can I get the user's name and gmail address?

  - by chris

  I know how to get the entire contacts list using Google Contacts API (I get a session token and use Google's Zend package for PHP). But how can I get the person's name and email address? Currently, the Contacts API just seems to give all of the contacts. I'm not sure how to distinguish which email and name out of that list corresponds to the user's account. Is there an easy way to get the user's full name and email address? Any help would be useful. Thanks!

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• Installing Qt libraries on OS X

  - by AXL79

  I'm trying to install the Qt 4.8.3 precompiled libraries downloaded from http://qt-project.org/downloads on my OS X 10.6 machine. Unfortunately the package doesn't seem to actually install any libraries (although it claims to do so in the readme) I've read loads of instructions of how to configure and build Qt from source but these are precompiled, as in 'you don't have to compile them yourself'. So I must be missing something. Is there anyone out there who knows how to actually install Qt on OS X so that it is possible to link against them -without- building the whole thing from source. Thanks

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• Which Java Web Framework allows Cross-Domain Javascripting (http proxy) ?

  - by snsd

  So just a quick intro, I am starting to explore Vaadin, and it's absolutely perfect. Previously, I was juggling PHP, Perl, Ruby, and Jquery for designing rich client web application. It didn't work out too well, as I've burnt out from trying to fix cross browser issues (aka get-it-to-work-on-IE-damn-it), handling server-side, client-side, and building a robust communication between the two tier had lot of code not related to application logic....by the time I was burnt out, only tiny bit of application logic was implemented. Vaadin seems like the answer to my problem as it only requires Java and built on top of GWT. However, I am curious how I can incorporate Cross-Domain Javascripting ? Back in LAMP environment, I had a CGI proxy script that loaded external URL, and injected JS into the proxy-loaded page. I used the CGI proxy script, as it rendered Javascript of the external URL well. Is there a class or package for Java or a specific Java web framework similiar to Vaadin that makes this possible ? Thank you.

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• jEdit+JythonInterpreter: how to import java class?

  - by JChao

  Hi, I'm running jEdit with the JythonInterprete and I have a .jar file called JavaTest.jar. JavaTest has a class called SampleJavaClass which has a method printerCount. From my .py file, I want to do: from javatest import SampleJavaClass class SampleClass(SampleJavaClass): def pymain(self): SampleJavaClass.printerCount(4) Java code: package javatest; public class SampleJavaClass { public static void printerCount(int i){ for(int j=0; j< i; j++){ System.out.println("hello world"); } } (etc...) In the JythonInterpreter, I have already tried clicking "Edit Jython Path" and adding the .jar file then running the interpreter again, but it still gives me ImportError: cannot import name SampleJavaClass

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