Search Results

Search found 7296 results on 292 pages for 'developers'.

Page 236/292 | < Previous Page | 232 233 234 235 236 237 238 239 240 241 242 243  | Next Page >

• Is parsing JSON faster than parsing XML

  - by geme_hendrix

  I'm creating a sophisticated JavaScript library for working with my company's server side framework. The server side framework encodes its data to a simple XML format. There's no fancy namespacing or anything like that. Ideally I'd like to parse all of the data in the browser as JSON. However, if I do this I need to rewrite some of the server side code to also spit out JSON. This is a pain because we have public APIs that I can't easily change. What I'm really concerned about here is performance in the browser of parsing JSON versus XML. Is there really a big difference to be concerned about? Or should I exclusively go for JSON? Does anyone have any experience or benchmarks in the performance difference between the two? I realize that most modern web developers would probably opt for JSON and I can see why. However, I really am just interested in performance. If there's a proven massive difference then I'm prepared to spend the extra effort in generating JSON server side for the client.

  Read the article

• Getting MSDeploy working on our build/integration server - Is an MSBuild upgrade necessary?

  - by Jeff D

  We have what I think is a fairly standard build process: 1. Developer: Check in code 2. Build: Polls repo, sees change, and kicks off build that: 3. Build: Updates from repo, Builds w/ MSBuild, Runs unit tests w/ nunit, 4. Build: creates installer package Our security team allows us to pull from the build server, but does not allow the build server to push. So we generally rdp in, d/l the installers, and run them, which rules out the slick deployment services, so I would need to generate packages instead. I'd like to use MSDeploy, except that we have the following issues: We're on .net 3.5, and the MSBuild target (Package) that uses MSDeploy requires 4.0. Is there anything I'd need to install other than .net 4.0 RC for this? (Would MSBuild be part of that upgrade?) When I generate packages with MSDeploy, I see that I don't have just 1 file. There's a zip, deploy.cmd, SourceManifest.xml, and SetParameters.xml. What are all the other files for, and why wouldn't they all be in the 'package'? It sounds as if you can create packages by telling the system to look at a working IIS site. But if the packages are build from a CI environment, aren't you basically out of luck here? It feels like they designed some of this for small-scale developers deploying from their dev environment. That's a fine use case, but I'm interested in see what everyone's enterprise-experience is with the tool Any suggestions?

  Read the article

• IndexOutOfBoundsException when updating a contact in contact list - Blackberry

  - by Taha

  Software and Simulator version i am using Blackberry Smartphone simulator: 2.13.0.65 Blackberry software version 5.0.0_5.0.0.14 I am looking at modifying contacts. Below is the code snippet i am using. I am getting a IndexOutOfBounds Exception at line String wtel = blackBerryContact.getString(BlackBerryContact.TEL, supportedAttributes[i]); Can someone advise what is going wrong here. Following is the code snippet ..... // Load the addressbook and let the user choose from list of contact BlackBerryContactList contactList = (BlackBerryContactList) PIM.getInstance().openPIMList(PIM.CONTACT_LIST,PIM.READ_WRITE); PIMItem pimItem = contactList.choose(); BlackBerryContact blackBerryContact = (BlackBerryContact)pimItem; PIMList pimList = blackBerryContact.getPIMList(); // get the supported attributes for Contact.TEL int[] supportedAttributes = pimList.getSupportedAttributes(Contact.TEL); Dialog.alert("Supported Attributes "+supportedAttributes.length); // gives me 8 for (int i=0; i < supportedAttributes.length;i++){ if(blackBerryContact.ATTR_WORK == supportedAttributes[i]){ Dialog.alert("updating Work"); // This alert is shown Dialog.alert("is supported "+ pimList.isSupportedAttribute(BlackBerryContact.TEL, supportedAttributes[i])+" "+pimList.getAttributeLabel(supportedAttributes[i])); // shows true and work String wtel = blackBerryContact.getString(BlackBerryContact.TEL, supportedAttributes[i]); // I get a IndexOutOfBounds Exception here if(wtel != ""){ pimItem.removeValue(BlackBerryContact.TEL, supportedAttributes[i]); } pimItem.addString( Contact.TEL, BlackBerryContact.ATTR_WORK, number); // passing the number that has to be updated if(pimItem.isModified()) { pimItem.commit(); Dialog.alert("Updated Work Number"); } } } ..... I want to update all the supported attributes for Contact.TEL field http://www.blackberry.com/developers/docs/5.0.0api/net/rim/blackberry/api/pdap/BlackBerryContact.html Field Values Per Field Supported Attributes ----------------------------------------------------------------------------- Contact.TEL 8 Contact.ATTR_WORK, Contact.ATTR_HOME, Contact.ATTR_MOBILE, Contact.ATTR_PAGER, Contact.ATTR_FAX, Contact.ATTR_OTHER, Contact.ATTR_HOME2, Contact.ATTR_WORK2

  Read the article

• System.IO.FileLoadException

  - by Raj G

  Hi All, I have got this error when using Enterprise Library 3.1 May 2007 version. We are developing a product and have a common lib directory beneath the Subversion Trunk directory <\Trunk\Lib\ into which we put all the third party DLLs. Inside this we have Microsoft\EnterpriseLibrary\v3.1 in which we have copied all the dlls from \Program Files\Microsoft Enterprise Library May2007\bin. Everything was working properly until one of the developers installed the source code on this machine. There were some dlls copied at the end of the source code installation and once that was done, he is not able to run the project anymore. He always gets this error 'Microsoft.Practices.EnterpriseLibrary.Data, Version=3.1.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)' What is the problem here? I thought that when the source code was installed it was just supposed to build everything and copy in the bin directory within the source code parent directory. Also we have copied the Dlls from Microsoft Enterprise Library May 2007\bin directory into our product development directory and references into our project with a copylocal flag set to true. Can anyone help me out here RK

  Read the article

• How to implement facebook like button

  - by vamsivanka

  I am trying to implement facebook like button on my website. The first four lines in the code is already there on my site after the end of the "" tag. To implement the "Like button" i have added the second script (Line five to the end) and ran the application. Its giving me an error as "Microsoft Jscript runtime error:'_onLoad' is null or not an object" Please Let me know. Thanks <script type="text/javascript" src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php"></script> <script type="text/javascript"> FB.init("myapikey", "xd_receiver.htm", { "reloadIfSessionStateChanged": true }); </script> <script type="text/javascript"> window.fbAsyncInit = function() { FB.init({appId: 'myappid', status: true, cookie: true, xfbml: true}); }; (function() { var e = document.createElement('script'); e.async = true; e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js'; document.getElementById('fb-root').appendChild(e); }()); </script> References: http://developers.facebook.com/docs/reference/plugins/like <fb:like href="http://webclip.in" layout="standard" show-faces="true" width="450" action="like" font="arial" colorscheme="light"/>

  Read the article

• How to utilize WebDev.WebServer.exe (VS Web Server) in x64?

  - by Nick Craver

  Visual Studio is x86 until at least the 2010 release comes around, my question is can anyone think of a way or know of an independent ASP.NET debug server that's x64 for 2008? Background: Our ASP.NET application runs against Oracle as the DB. Since we're on 64-bit servers for memory concerns later, we need to use Oracle's 64-bit drivers (Instant Client). Setup: x64 OS (XP or Windows 7) IIS (5 or 7, both x64 App Pools) Oracle 64-bit Instant Client (Separate Directory, in the PATH) Visual Studio 2008 SP1 In IIS the application pool runs as 64-bit, uses the Oracle drivers as intended, however since WebDev.WebServer.exe is 32-bit you'll get a BadImageFormatException because it's trying to load 64-bit driver DLLs in a 32-bit environment. All of our developers would like to be able to use the quick debug server via Visual Studio 2008, but since it runs as 32-bit we're unable to. Some problems we run into are during application startup, so although we're attaching to the IIS process sometimes that isn't enough to track an issue down. Are there any alternatives, or work-arounds? We would like to match our Dev/Val/Prod tiers as much as possible, so everything running in x64 would be ideal.

  Read the article

• Version control of software refactoring

  - by Muhammad Alkarouri

  What is the best way of doing version control of large scale refactoring? My typical style of programming (actually of writing documents as well) is getting something out as quickly as possible and then refactoring it. Typically, refactoring takes place at the same time as adding other functionality. In addition to standard refactoring of classes and functions, functions may move from one file to another, files get split and merged or just reordered. For the time being, I am using version control as a lone user, so there is no issue of interaction with other developers at this stage. Still, version control gives me two aspects: Backup and ability to revert to a good version "in case". Looking at the history tells me how the project progressed and the flow of ideas. I am using mercurial on windows using TortoiseHg which enables selections of hunks to commit. The reason I mention this is that I would like advice on the granularity of a commit in refactoring. Should I split refactoring from functionality added always in committing? I have looked at the answers of http://stackoverflow.com/questions/68459/refactoring-and-source-control-how-to but it doesn't answer my question. That question focuses on collaboration with a team. This one concentrates on having a history that is understandable in future (assuming I don't rewrite history as some VCS seem to allow).

  Read the article

• Eclipse: Cannot install CDT because of a conflicting dependency

  - by MarkZar

  my eclipse has been configured for Java and pydev, now i want to configure C/C++ development tools with Eclipse. i dont want to download the whole Eclipse IDE for C/C++ Developers, for it is not convenient. so i decided to install CDT in my Eclipse. Help == Install New Software, then input http://download.eclipse.org/tools/cdt/releases/indigo, waited for a while, and chose the following CDT Main Features, CDT Optional Features, and Next, then an error occurred. Cannot complete the install because of a conflicting dependency. Software being installed: C/C++ DSF GDB Debugger Integration 4.0.0.201106081058 (org.eclipse.cdt.gnu.dsf.feature.group 4.0.0.201106081058) Software being installed: C/C++ Development Tools SDK 8.0.2.201202111925 (org.eclipse.cdt.sdk.feature.group 8.0.2.201202111925) Only one of the following can be installed at once: GDB DSF Debugger Integration Core 4.0.0.201106081058 (org.eclipse.cdt.dsf.gdb 4.0.0.201106081058) GDB DSF Debugger Integration Core 4.0.2.201202111925 (org.eclipse.cdt.dsf.gdb 4.0.2.201202111925) GDB DSF Debugger Integration Core 4.0.1.201109151620 (org.eclipse.cdt.dsf.gdb 4.0.1.201109151620) Cannot satisfy dependency: From: C/C++ Development Tools 8.0.2.201202111925 (org.eclipse.cdt.feature.group 8.0.2.201202111925) To: org.eclipse.cdt.gnu.dsf.feature.group [4.0.1.201202111925] Cannot satisfy dependency: From: C/C++ DSF GDB Debugger Integration 4.0.0.201106081058 (org.eclipse.cdt.gnu.dsf.feature.group 4.0.0.201106081058) To: org.eclipse.cdt.dsf.gdb [4.0.0.201106081058] Cannot satisfy dependency: From: C/C++ DSF GDB Debugger Integration 4.0.1.201202111925 (org.eclipse.cdt.gnu.dsf.feature.group 4.0.1.201202111925) To: org.eclipse.cdt.dsf.gdb [4.0.2.201202111925] Cannot satisfy dependency: From: C/C++ Development Tools SDK 8.0.2.201202111925 (org.eclipse.cdt.sdk.feature.group 8.0.2.201202111925) To: org.eclipse.cdt.feature.group [8.0.2.201202111925] i have googled for a lot of time, but still cannot find a valid solution. can anyone give a hand to me? thanks a lot!

  Read the article

• Eclipse throwing error when copying and pasting

  - by hoffmandirt

  I am using Eclipse 3.5 SR2 for Java EE developers. Each time I press control+C or control+V for the first time after I open a file I get an error. After I close the error, I can successfully copy and paste. The error message made me believe that it was related to the Mylyn plugin, but I uninstalled it and still no difference. Has anyone else experience this problem? I also have the subclipse, adobe flex builder, and maven plugins installed. The 'org.eclipse.mylyn.tasks.ui.hyperlinks.detectors.url' extension from plug-in 'org.eclipse.mylyn.tasks.ui' to the 'org.eclipse.ui.workbench.texteditor.hyperlinkDetectors' extension point failed to load the hyperlink detector. Plug-in org.eclipse.mylyn.tasks.ui was unable to load class org.eclipse.mylyn.internal.tasks.ui.editors.TaskUrlHyperlinkDetector. An error occurred while automatically activating bundle org.eclipse.mylyn.tasks.ui (520). The 'org.eclipse.mylyn.java.hyperlink.detector.stack' extension from plug-in 'org.eclipse.mylyn.java.tasks' to the 'org.eclipse.ui.workbench.texteditor.hyperlinkDetectors' extension point failed to load the hyperlink detector. Plug-in org.eclipse.mylyn.java.tasks was unable to load class org.eclipse.mylyn.internal.java.tasks.JavaStackTraceHyperlinkDetector. org/eclipse/mylyn/tasks/ui/AbstractTaskHyperlinkDetector The 'org.eclipse.mylyn.tasks.ui.hyperlinks.detectors.task' extension from plug-in 'org.eclipse.mylyn.tasks.ui' to the 'org.eclipse.ui.workbench.texteditor.hyperlinkDetectors' extension point failed to load the hyperlink detector. Plug-in org.eclipse.mylyn.tasks.ui was unable to load class org.eclipse.mylyn.internal.tasks.ui.editors.TaskHyperlinkDetector. An error occurred while automatically activating bundle org.eclipse.mylyn.tasks.ui (520).

  Read the article

• Session State with MVP and Application Controller patterns

  - by Graham Bunce

  Hi, I've created an MVP (passive view) framework for development and decided to go for an Application Controller pattern to manage the navigation between views. This is targeted at WinForms, ASP.NET and WPF interfaces. Although I'm not 100% convinced that these view technologies really swappable, that's my aim at the moment so my MVP framework is quite lightweight. What I'm struggling to fit in is the concept of a "Business Conversation" that needs state information to be either (a) maintained for the lifetime of the View or, more likely, (b) maintained across several views for the lifetime of a use case (business conversation). I want state management to be part of the framework as I don't want developers to worry about it. All they need to do is to "start" a conversation, "Register" objects and the framework does the rest until the "end" a conversation. Has anybody got any thoughts (patterns) to how to fit this into MVP? I was thinking it may be part of the Application Controller responsibility (delegating to a Conversation Manager object) as it knows about current state in order to send the user to the next view.... but then I thought it may be up to the Presenter to start and end the conversation so then it comes down the presenters to manage conversations and the objects registered for the that conversation. Unfortunately that means presenters can't be used in different conversations... so that idea doesn't seem right. As you can see, I don't think there is an easy answer (and I've looked for a while). So anybody else got any thoughts?

  Read the article

• converted javascript to fbjs - tabs still not working

  - by JohnMerlino

  Hey all, I tried my best to convert javascript to fbjs according to this page: http://wiki.developers.facebook.com/index.php/FBJS. Yet my tabs are still not working properly. Does anyone have any suggestions how to fix this so I can click through the tabs and display and hide content accordingly: <script type="text/javascript"><!-- var tabLinks = []; var contentDivs = []; function init() { var tabListItems = document.getElementById('tabs').getChildNodes(); for ( var i = 0; i < tabListItems.length; i++ ) { if ( tabListItems[i].getNodeName("LI") ) { var tabLink = getFirstChildWithTagName( tabListItems[i], 'A' ); var id = getHash( tabLink.getAttribute('href') ); tabLinks[id] = tabLink; contentDivs[id] = document.getElementById( id ); } } var i = 0; for ( var id in tabLinks ) { tabLinks[id].addEventListener(onclick, showTab) tabLinks[id].addEventListener(onfocus, function() { this.blur() }; if ( i == 0 ) tabLinks[id].setClassName('selected'); i++;) } var i = 0; for ( var id in contentDivs ) { if ( i != 0 ) contentDivs[id].setClassName('tabContent hide'); i++; } } function showTab() { var selectedId = getHash( this.getAttribute('href') ); for ( var id in contentDivs ) { if ( id == selectedId ) { tabLinks[id].setClassName('selected'); contentDivs[id].setClassName('tabContent'); } else { tabLinks[id].setClassName(''); contentDivs[id].setClassName('tabContent hide'); } } return false; } function getFirstChildWithTagName( element, tagName ) { for ( var i = 0; i < element.getChildNodes().length; i++ ) { if ( element.getChildNodes[i].getNodeName(tagName) ) return element.getChildNodes[i]; } } function getHash( url ) { var hashPos = url.getLastIndexOf ( '#' ); return url.getSubString( hashPos + 1 ); } init(); --></script> Thanks for any response.

  Read the article

• RotatingFileHandler throws an exception when delay parameter is set

  - by Eli Courtwright

  When I run the following code under Python 2.6 import logging from logging.handlers import RotatingFileHandler rfh = RotatingFileHandler("testing.log", delay=True) logging.getLogger().addHandler(rfh) logging.warning("Boo!") then the last line throws AttributeError: RotatingFileHandler instance has no attribute 'level'. So I add the line rfh.setLevel(logging.DEBUG) before the call to addHandler, and then the last line throws AttributeError: RotatingFileHandler instance has no attribute 'filters'. So if I manually set filters to be an empty list, then it complains about not having the attribute lock, etc. When I remove the delay=True to leave it as the default value of False as documented here, the problem completely goes away. Am I missing something? How do I properly use the delay parameter of the RotatingFileHandler class? EDIT: Upon further analysis (presented in my own answer below), this looks like a bug, but I can't find a bug report on this in the Python bug tracker, even trying different search terms, so I guess I'll report it. However, if someone can locate the actual bug report, then I can avoid submitting a duplicate reporting and wasting the time of the Python developers. I'll hold off on reporting the bug for a few hours, and if someone posts an answer that has the current bug report, then I'll accept that answer for this question.

  Read the article

• Multiple dex files define Lcom/google/api/client/auth/oauth/AbstractOAuthGetToken;

  - by Elad Benda

  I have just followed this tutorial: https://developers.google.com/drive/quickstart-android so I don't see a reason for duplicated libs in my project. I have added the drive Client lib via Google plugin for eclipse When I build my android app with this manifest <uses-sdk android:minSdkVersion="15" android:targetSdkVersion="16" /> <uses-permission android:name="android.permission.READ_CALENDAR" /> <uses-permission android:name="android.permission.WRITE_CALENDAR" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.GET_ACCOUNTS"/> <uses-permission android:name="android.permission.INTERNET" /> <application android:icon="@drawable/todo" android:label="@string/app_name" > <activity android:name=".TodosOverviewActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".TodoDetailActivity" android:windowSoftInputMode="stateVisible|adjustResize" > <intent-filter> <action android:name="android.intent.action.SEND" /> <category android:name="android.intent.category.DEFAULT" /> <data android:mimeType="image/*" /> </intent-filter> </activity> <provider android:name=".contentprovider.MyTodoContentProvider" android:authorities="de.vogella.android.todos.contentprovider" > </provider> </application> I get the following error: [2013-10-27 00:43:58 - Dex Loader] Unable to execute dex: Multiple dex files define Lcom/google/api/client/auth/oauth/AbstractOAuthGetToken; [2013-10-27 00:43:58 - de.vogella.android.todos] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lcom/google/api/client/auth/oauth/AbstractOAuthGetToken; how can I fix this?

  Read the article

• Navigating through a sea of hype

  - by wouldLikeACrystalBall

  This is a vague, open question, so if you have no interest in these, please leave now. A few years ago it seemed everyone thought the death of desktop software was imminent. Web applications were the future. Everyone would move to cloud-based software-as-a-service systems, and developing applications for specific end-user platforms like Windows would soon become something of a ghetto. Joel's "How Microsoft Lost the API War" was but one of many such pieces sounding the death knell for this way of software development. Flash-forward to 2010, and the hype is all around mobile devices, particularly the iPhone. Software-as-a-Service vendors--even small ones such as YCombinator startups--go out of their way to build custom applications for the iPhone and other smart phone devices; applications that can be quite sophisticated, that run only on specific hardware and software architectures and are thus inherently incompatible. Now some of you are probably thinking, "Well, only the decline of desktop software was predicted; mobile devices aren't desktops." But the term was used by those predicting its demise to mean laptops also, and really any platform capable of running a browser. What was promised was a world where HTML and related standards would supplant native applications and their inherent difficulties. We would all code to the browser, not the OS. But here we are in 2010 with the AppStore bulging and development for the iPad just revving up. A few days ago, I saw someone on Hacker News claim that the future of computing was entirely in small, portable devices. Apparently the future is underpowered, requires dexterous thumbs and induces near-sightedness. How do those who so vehemently asserted one thing now assert the opposite with equal vehemence, without making even the slightest admission of error? And further, how are we as developers supposed to sift through all of this? I bought into the whole web-standards utopianism that was in vogue back in '06-'07 and now feel like it was a mistake. Is there some formula one can apply rather than a mere appeal to experience?

  Read the article

• What GUI tool can I use for building applications that interact with multiple APIs?

  - by tarasm

  My company uses a lot of different web services on daily bases. I find that I repeat same steps over and over again on daily bases. For example, when I start a new project, I perform the following actions: Create a new client & project in Liquid Planner. Create a new client Freshbooks Create a project in Github or Codebasehq Developers to Codebasehq or Github who are going to be working on this project Create tasks in Ticketing system on Codebasehq and tasks in Liquid Planner This is just when starting new projects. When I have to track tasks, it gets even trickier because I have to monitor tasks in 2 different systems. So my question is, is there a tool that I can use to create a web service that will automate some of these interactions? Ideally, it would be something that would allow me to graphically work with the web service API and produce an executable that I can run on a server. I don't want to build it from scratch. I know, I can do it with Python or RoR, but I don't want to get that low level. I would like to add my sources and pass data around from one service to another. What could I use? Any suggestions?

  Read the article

• Help/Questions About New Team Foundation Server 2010 Installation

  - by user579218

  Hello. Before starting down the TFS2010 installation process, I have a few questions I'm hoping the community can help me with. We're planning on a single-server installation of TFS2010. Initially, we want version/source control and build services, but not reporting or SharePoint. We may add reporting and SharePoint capabilities later. Our environment will be Windows Server 2008 R2 (x64), SQL Server 2008 R2 (x64), Office 2010 (x86), Visual Studio 6 and 2010, and, of course, Team Foundation Server 2010. Can I install TFS2010 on a server that is on our domain? It's not a domain controller, it's just a member server on the domain. Should I install TFS2010 before or after putting the server on the domain? We have six developers that will be logging into their local development computers (which are also on the same domain) using their domain user accounts, do I add each domain user to the TFS2010 server's security groups? If so, which one(s)? Can I or should I use a domain user account as the TFS2010 service account? Or, should I just use Network Service? The TFS2010 install guide notes that none of the service accounts should belong to the Administrators security group, so which security group(s) are recommended for the service account(s)? We're planning on using a local instance of SQL Server 2008 R2 Standard with TFS2010, what service account should we use? Should we use the same domain account as TFS2010 or Local System or ?? The TFS2010 install guide isn't very specific on this. Since we're planning on this server being both the version/source control and build server, should we install our development environments (VS6, VS2010, Access2010) before installing TFS2010? Or does it matter? Thanks in advance for answering these questions.

  Read the article

• How to prove writing specifications beats code cowboys?

  - by Andrew Grant

  So I have a problem. Or rather my friend has a problem, since I would never write about my company on an internet forum. At my friend's company specification writing is, shall we say, a little underused. There's a deeply ingrained culture of writing code first and asking questions later, whether it's for a library routine or a new tool to inflict on their long suffering designers. This of course leads to situations where functionality is partially correct, incorrect, or just completely missing ("oh, just save before trying anything you may want to undo"). This usually results in a loss of productivity for those poor designers, or beta periods where bug-fixing is largely spent implementing things correctly. My friend's found his suggestions of writing (and testing against) specifications to be generally well received. Most of his colleagues have embraced the wonderful feeling of discovering false-assumptions on paper, instead of at 11pm on a Sunday in the middle of beta. Viva La Revolution! However there are a few who poo-poo anything that stands between their task and a keyboard. They laugh at the thought of actually designing anything, and write code with merry abandon. Mostly these are senior, long employed developers, reluctant to "waste time". The problem is that this second group of heretics invariably produce things (or at least something) quicker than the first. Subsequently this becomes justification along the lines of "It's pointless to write specifications for something as simple as an image resizer! Oh and those bugs where width!=height or the image uses RLE just need a few tweaks". And now the question :) Other than saying "told you so" at the end of a project, what are some good short-term ways to demonstrate how the practice of writing functional or technical specifications leads to better software in the long run? Cheers!

  Read the article

• Legit? Two foreign keys referencing the same primary key.

  - by Ryan

  Hi All, I'm a web developer and have recently started a project with a company. Currently, I'm working with their DBA on getting the schema laid out for the site, and we've come to a disagreement regarding the design on a couple tables, and I'd like some opinions on the matter. Basically, we are working on a site that will implement a "friends" network. All users of the site will be contained in a table tblUsers with (PersonID int identity PK, etc). What I am wanting to do is to create a second table, tblNetwork, that will hold all of the relationships between users, with (NetworkID int identity PK, Owners_PersonID int FK, Friends_PersonID int FK, etc). Or conversely, remove the NetworkID, and have both the Owners_PersonID and Friends_PersonID shared as the Primary key. This is where the DBA has his problem. Saying that "he would only implement this kind of architecture in a data warehousing schema, and not for a website, and this is just another example of web developers trying to take the easy way out." Now obviously, his remark was a bit inflammatory, and that have helped motivate me to find an suitable answer, but more so, I'd just like to know how to do it right. I've been developing databases and programming for over 10 years, have worked with some top-notch minds, and have never heard this kind of argument. What the DBA is wanting to do is instead of storing both the Owners_PersonId and Friends_PersonId in the same table, is to create a third table tblFriends to store the Friends_PersonId, and have the tblNetwork have (NetworkID int identity PK, Owner_PersonID int FK, FriendsID int FK(from TBLFriends)). All that tblFriends would house would be (FriendsID int identity PK, Friends_PersonID(related back to Persons)). To me, creating the third table is just excessive in nature, and does nothing but create an alias for the Friends_PersonID, and cause me to have to add (what I view as unneeded) joins to all my queries, not to mention the extra cycles that will be necessary to perform the join on every query. Thanks for reading, appreciate comments. Ryan

  Read the article

• Grails - Development advice - Where do I find Plugin APIs / Troubleshoot errors / Make life easy for

  - by gav

  Hello fellow Grails Developers! I was wondering if you could help me with what must be a very common issue. I have come from a world of Java and eclipse where JavaDocs and APIs are at your fingertips. Grails has some great features and plugins but I find their inner workings completely undescoverable and that makes me sad. Take for example the excellent authentication plugin, I set this up using the brief but accurate doc. Now I'm in eclipse with STS and I'm staring at a method; applicationContext.authenticationService.filterRequest( request, response, "${request.contextPath}/authentication/index" ) Which is throwing an exception; 2010-05-01 01:17:07,292 [http-8080-1] ERROR [/grailsapp].[default] - Servlet.service() for servlet default threw exception java.lang.IllegalStateException at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:407) at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:118) at org.codehaus.groovy.grails.web.sitemesh.GrailsPageResponseWrapper.sendError(GrailsPageResponseWrapper.java:91) And I have no idea where to start. I would love to have eclipse link to the source but there must be other manageable alternatives too as I know some people use TextMate or vim for development, they can't all have discovered the APIs for the plugins through trial and error!?! Is there any way of making the core Grails API more accessible / searchable? Autocomplete also doesn't seem to work for me in eclipse so if anyone has this working that would be ideal (It's an extension of the same question really). What's your approach? (Please don't say intelliJ, I can't afford it) I'm sure it's obvious and I'm just missing it, please put me out of my misery! Thanks in advance, Gav

  Read the article

• Android Scan for Wifi networks

  - by Nils

  Hello, I'm trying to scan for wireless networks and found this helpful source on the net. Unfortunately it's not working and I have no idea why. My problem is that I can't wait 10 minutes for the result - I need them within a few seconds and thought about setting the boolean variable waiting on false as soon as I get a result.... well, it runs forever ... looks like nothing is received. Any idea ? Thanks. // -- Sample WiFi implementation - http://groups.google.com/group/android-developers/browse_thread/thread/f722d5f90cfae69 IntentFilter i = new IntentFilter(); i.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION); registerReceiver(new BroadcastReceiver(){ @Override public void onReceive(Context c, Intent i){ // Code to execute when SCAN_RESULTS_AVAILABLE_ACTION event occurs mWifiManager = (WifiManager) c.getSystemService(Context.WIFI_SERVICE); wireless = mWifiManager.getScanResults(); // Returns a <list> of scanResults waiting = false; } } ,i); // -- End Wifi Sample mWifiManager.startScan(); while (waiting) { try { Thread.sleep(200); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.d("PROJECT1","Wifi WAITING"); }

  Read the article

• Ruby on rails generates tests for you. Do those give a false sense of a safety net?

  - by Hamish Grubijan

  Disclaimer: I have not used RoR, and I have not generated tests. But, I will still dare to post this question. Quality Assurance is theoretically impossible to get 100% right in general (Undecidable problem ;), and it is hard in practice. So many developers do not understand that writing good automated tests is an art, and it is hard. When I hear that RoR generates the tests for you, I get very skeptical. It cannot be that easy. Testing is a general concept; it applies across languages. So does the concept of code contracts, it is similar for languages that support it. Code contracts do not generate themselves. The programmer must add the requirements and the promises manually, after doing some thinking about the algorithm / function. If a human gets it wrong, then the tools will propagate the error. Similarly with testing - it takes human judgement about what should happen. Tests do not write themselves, and we are far from the day when a business analyst can just have a conversation with a computer and tell it informally what the requirements are and have the computer do all the work. There is no magic ... how can RoR generate good tests for you? Please shed some light on this. Opinions are ok, for this is a community wiki. Thanks!

  Read the article

• Multiple CodeSnippet in an XML .snippet file

  - by Frinavale

  I'm attempting to supplement the help features for my code by providing other developers with code snippets. These produce skeletons of code which demonstrate how to use/call my classes or methods. I've created a .snippet file and have placed it in the "%Visual Studio Folder%\Code Snippets\Visual Basic\My Snippets" folder. I've used the Code Snippets Manager and ensured that it included this folder so that I can access the snippets. Everything works well when I have 1 CodeSnippet tag within the root CodeSnippets tag.... When I add more than one CodeSnippet tag to the file (each with their own title, and their own code example) I'm experiencing something strange. The first CodeSnippet I've added contains code for adding something to my system, the second contains code for editing something in my system, and the third deleting something from the system. When I use the code snippet by right clicking and selecting "Insert Code Snippet", only the first code snippet in the file shows up as an option. When I select it, the code in the first CodeSnippet is inserted....but so is the code within the other CodeSnippet tags. Do you have to have a separate XML .snippet file for each code snippet you want to make available? After reading through MSDN about creating Code Snippets I was under the impression that this could all be done within one file. It seems that I'm not understanding something very basic here and would love to find the answer but apparently Code Snippets are under used so finding the answer has proven to be a little trickier than I first thought it would be. Thanks, -Frinny

  Read the article

• People not respecting good practices at workplace

  - by VexXtreme

  Hi There are some major issues in my company regarding practices, procedures and methodologies. First of all, we're a small firm and there are only 3-4 developers, one of which is our boss who isn't really a programmer, he just chimes in now and then and tries to do code some simple things. The biggest problems are: Major cowboy coding and lack of methodologies. I've tried explaining to everyone the benefits of TDD and unit testing, but I only got weird looks as if I'm talking nonsense. Even the boss gave me the reaction along the lines of "why do we need that? it's just unnecessary overhead and a waste of time". Nobody uses design patterns. I have to tell people not to write business logic in code behind, I have to remind them not to hardcode concrete implementations and dependencies into classes and cetera. I often feel like a nazi because of this and people think I'm enforcing unnecessary policies and use of design patterns. The biggest problem of all is that people don't even respect common sense security policies. I've noticed that college students who work on tech support use our continuous integration and source control server as a dump to store their music, videos, series they download from torrents and so on. You can imagine the horror when I realized that most of the partition reserved for source control backups was used by entire seasons of TV series and movies. Our development server isn't even connected to an UPS and surge protection. It's just plugged straight into the wall outlet. I asked the boss to buy surge protection, but he said it's unnecessary. All in all, I like working here because the atmosphere is very relaxed, money is good and we're all like a family (so don't advise me to quit), but I simply don't know how to explain to people that they need to stick to some standards and good practices in IT industry and that they can't behave so irresponsibly. Thanks for the advice

  Read the article

• How do you keep your business rules DRY?

  - by Mario

  I periodically ponder how to best design an application whose every business rule exists in just a single location. (While I know there is no proverbial “best way” and that designs are situational, people must have a leaning toward one practice or another.) I work for a shop where they prefer to house as much of the business rules as possible in the database. This requires developers in many cases to perform identical front-end validations to avoid sending data to the database that will result in an exception—not very DRY. It grates me anytime I find myself duplicating any kind of logic—even lowly validation logic. I am a single-point-of-truth purist to an anal degree. On the other end of the spectrum, I know of shops that create dumb databases (the Rails community leans in this direction) and handle all of the business logic in a separate tier (in Rails the models would house “most” of this). Note the word “most” which implies that some business logic does end up spilling into other places (in Rails it might spill over into the controllers). In way, a clean separation of concerns where all business logic exists in a single core location is a Utopian fantasy that’s hard to uphold (n-tiered architecture or not). Furthermore, is see the “Database as a fortress” and would agree that it should be built on constraints that cause it to reject bad data. As such, I hold principles that cause a degree of angst as I attempt to balance them. How do you balance the database-as-a-fortress view with the desire to have a single-point-of-truth?

  Read the article

• iphone app scroll view is horizontal but i want it vertical - how do i change this?

  - by Billy Jones

  Hi Folks, Got this code for a viewscroller from the apple developers site. @synthesize scrollView1, scrollView2; const CGFloat kScrollObjHeight = 467.0; const CGFloat kScrollObjWidth = 320.0; const NSUInteger kNumImages = 6; (void)layoutScrollImages { UIImageView *view = nil; NSArray *subviews = [scrollView1 subviews]; // reposition all image subviews in a horizontal serial fashion CGFloat curXLoc = 0; for (view in subviews) { if ([view isKindOfClass:[UIImageView class]] && view.tag 0) { CGRect frame = view.frame; frame.origin = CGPointMake(curXLoc, 0); view.frame = frame; curXLoc += (kScrollObjWidth); } } // set the content size so it can be scrollable [scrollView1 setContentSize:CGSizeMake((kNumImages * kScrollObjWidth), [scrollView1 bounds].size.height)]; } it works brilliantly the images are rotated by pulling them left or right. but I want to pull the images up and down to change them. Can anyone help me out with this? this part in the code looks as if it controls the direction but i'm not sure how to change it. // reposition all image subviews in a horizontal serial fashion CGFloat curXLoc = 0; for (view in subviews) { if ([view isKindOfClass:[UIImageView class]] && view.tag 0) { CGRect frame = view.frame; frame.origin = CGPointMake(curXLoc, 0); view.frame = frame; curXLoc += (kScrollObjWidth); } } Any help most appreciated, thanks! Billy

  Read the article

< Previous Page | 232 233 234 235 236 237 238 239 240 241 242 243  | Next Page >