Search Results

Search found 16902 results on 677 pages for 'trade off'.

Page 211/677 | < Previous Page | 207 208 209 210 211 212 213 214 215 216 217 218  | Next Page >

  • Inspecting the model in a Rails application

    - by Matt Sherman
    I am learning some Ruby on Rails, and am a newbie. Most of my background is in ASP.net MVC on the back end. As I play with a basic scaffold project, I wonder about this case: you jump into an established Rails project and want to get to know the model. Based on what I have seen so far (again, simple scaffold), the properties for a given class are not immediately revealed. I don't see property accessors on the model classes. I do understand that this is because of the dynamic nature of Ruby and such things are not necessary or even perhaps desirable. Convention over code, I get that. (Am familiar with dynamic concepts, mostly via JS.) But if I am somewhere off in a view, and want to quickly know whether the (eg) Person object has a MiddleName property, how would I find that out? I don't have to go into the migrations, do I?

    Read the article

  • First of all...

    - by devboy00
    First of all, this is going to be about my long (hopefully not) and painful (most definitely) climb back into the saddle after spending all of the intervening years between .NET 1.1 and now being a PHB.  I've half-heartedly attempted to get back up to speed a couple of times, but THIS time I actually have some coding to do, AND the geeks are so amped up about all of the new technologies, I really have to do this. So...  Once again, .NET 1.1.  Right now I'm getting ready to work on a site that incorporates Fluent nHibernate, MVC, Spark, and some conventions based coding practices.  Along the way, I'll have to learn about Lambda expressions and other cool stuff that I've missed out on in the last bazillion years since I seriously coded.  Hopefully this will be a guide, or a warning for those of you who feel the need to get off the sidelines and get back into the game. Yeah, that's it for now.

    Read the article

  • Can SpriteBatch be used to fill a polygon with a texture?

    - by can poyrazoglu
    I basically need to fill a texture into a polygon using the SpriteBatch. I've done some research but couldn't find anything useful except polygon triangulation method, which works well only with convex polygons (without diving into super math which is definitely not something I'm pretty good at). Are there any solutions for filling in a polygon in a basic way? I of course need something dynamic (I'll have a map editor that you can define polygons, and the game will render them (and collision detection will also use them but that's off topic), basically I can't accept solutions like "pre-calculated" bitmaps or anything like that. I need to draw a polygon with the segments provided, to the screen, using the SpriteBatch.

    Read the article

  • Eliminating Downtime During Database Upgrades: A Customer Case Study

    - by irem.radzik(at)oracle.com
    Planned outages, such as database, OS, hardware upgrades and migrations, are a fact of life. Even though they are "planned" and many of them are performed during "off business hours", they can still interrupt operations-- especially for global operations and online businesses. For this reason many IT organizations postpone these critical infrastructure improvement projects, which in turn result in delays in advancing business operations. This week, on Thursday January 13th, we will host a free webcast on this topic, and will feature Oracle GoldenGate's customer Atmos Energy. Atmos Energy implemented Oracle GoldenGate for eliminating downtime during their database upgrade from Oracle Database 8.1.7 to Oracle Database 11.1.0.7. Jos Francis, Lead DBA for Atmos, and Ronald Nedd, Sr. DBA for Atmos, will be presenting their database upgrade project and their solution architecture. Join us at this live webcast and hear from our customer and product management how to eliminate planned outages with Oracle GoldenGate's real-time, heterogeneous data replication capabilities.

    Read the article

  • Unable to wake display with remote

    - by Eugene
    I'm running an HTPC (xbmc) without a keyboard/mouse attached, running oneiric. After some indeterminate amount of time, sometime between 1 and 12 hours, the display goes to sleep. The computer itself is not sleeping, I can still SSH to it from another computer. The remote will not wake the display. The IR receiver is working, as irw will show me the remote key presses. The only way to get my display back is to restart the display manager, lightdm in this case. Does anybody know a way to keep the display from going to sleep? I don't really need any power management at all considering that it connects to my TV and when I want my display to go to sleep, I turn off my TV.

    Read the article

  • Is true multithreading really necessary?

    - by Jonathan Graef
    So yeah, I'm creating a programming language. And the language allows multiple threads. But, all threads are synchronized with a global interpreter lock, which means only one thread is allowed to execute at a time. The only way to get the threads to switch off is to explicitly tell the current thread to wait, which allows another thread to execute. Parallel processing is of course possible by spawning multiple processes, but the variables and objects in one process cannot be accessed from another. However the language does have a fairly efficient IPC interface for communicating between processes. My question is: Would there ever be a reason to have multiple, unsynchronized threads within a single process (thus circumventing the GIL)? Why not just put thread.wait() statements in key positions in the program logic (presuming thread.wait() isn't a CPU hog, of course)? I understand that certain other languages that use a GIL have processor scheduling issues (cough Python), but they have all been resolved.

    Read the article

  • How to disable Alert volume from the command line?

    - by Bryce
    There is an option in the Sound Preferences dialog, Sound Effects tab, to toggle Alert volume 'mute'. It works and suffices for my needs to disable the irritating system beep/bell. However, I reinstall systems a LOT for testing purposes and would like to set this setting in a shell script so it's off without having to fiddle with a GUI. But for the life of me I can't seem to find where this can be toggled via a command line tool. I've scanned through gconf-editor, pulseaudio's pacmd, grepped through /etc, even dug through the gnome-volume-control source code, but I am not seeing how this can be set. I gather that gnome-volume-control has changed since a few releases ago. Ideas?

    Read the article

  • Gamification at OOW

    - by erikanollwebb
    Last week was Oracle OpenWorld, and for those of you not in tech or downtown San Francisco, that might not mean a whole lot.  However, if you are familiar with it, Oracle OpenWorld is our premier customer event.  This year, more than 50,000 people attended.  It's not a good week to visit San Francisco on vacation because Oracle customers take over all the hotels in town!  It was crazy, but a lot of fun and it's a great opportunity for the Apps UX group to do customer research with a range of customers.  This year, more than 100+ customers and partners took the time to team up with our UX experts and provide feedback on new designs and ideas. Over three days,  UX teams conducted 8  one-on-one user feedback sessions, 4 focus groups and 7 surveys. In addition, we conducted a voice capture activity and were able to collect close to 70 speech samples at the lab and DEMOgrounds. This was a great opportunity for us to do some testing on some specific gamification concepts with a set of business analysts.  We pulled in 8 folks for a focus group on gamification concepts and whether they thought those would work for their teams. To get ready for this, my designer extraordinaire, Andrea Cantú, flew into town and we spent almost a week locked in a room together brainstorming design ideas.  We killed a few trees trying to get all of our concepts and other examples together in the process, but in the end, we put together a whole series of examples of how you might gamify an Oracle app (in this case, CRM).  Andrea is a genius for this kind of thing and the comps she created looked great.  Here's a picture of her hard at work!  We also had the good fortune to have my boss, Laurie Pattison and my usability contractor, Shobana Subramanian there to note take and observe as well.  Here's a few shots of us, hard at work preparing for the day (or checking out something on Laurie's iPhone...) To start things off, we gave an overview of gamification and I talked about what it's used for.  Then we gave the participants a scenario about our sales person and what we were trying to get her to do. It was a great opportunity to highlight what our business goals might be and why we might want to add game mechanics.  It was also a good way to get them thinking about how that might work for them in their environments and workplaces. There were some surprises for the day.  We asked how many of them were already familiar with the concept of gamification--only two people had heard of it and only one was using game mechanics in his work.  That's in contrast to a survey we just ran internally with folks in a dev org where almost 50% of about 450 respondents had heard of gamification.  As we discussed the ways game mechanics could be used, it became clear that many of the folks had seen some game mechanics in action but didn't know that's what they were.  We also noticed that the folks in this group felt that if they were trying to sell the concept in their orgs, they wouldn't call it gamification.  That's not a huge surprise to me--they said what we've heard in the past, that gamification does not seem like a serious term for enterprise software.  They said they'd sell it with the goals--as a means to increase behaviors by rewarding users for activities.  It's a funny problem.  The word puts some folks off, but at the same time, I haven't seen another one word description that quite captures the range of things that "gamification" can cover.  My guess is that the more mainstream the term becomes, the more desensitized we'll become to the idea the it's trivializing enterprise software in some way.  Still, it was interesting to note that this group still felt that they would not take this concept to their bosses or teams and call it "gamification".  They focused on the goals, and how we could incentivize desired behaviors with game mechanics.  As I have already stated in other posts, I feel like my org is more receptive to discussing how this is just a more transparent type of usability and user experience methods than talking about gamification.  That's the argument they said they would use. All in all, it was a good session.  I love getting to talk to customers, present ideas and concepts, and get their feedback and input.  It's the type of thing that really helps drive our designs and keeps us grounded in what our customers need/want.  We're already planning where to get more feedback opportunities in the coming months. 

    Read the article

  • Time jumping forward on NTP failure

    - by Dan
    I have been having some weird problems with NTP for a while. If I use ntpdate to set the time then it sets fine. ntpd then invariably fails to find a server (I have loads configured) and decides to set the clock forward about 5 hours. It's a Xen server with dom0 set to a different timezone so I'm not sure if that is interfering with it. How can I make sure I ignore the dom0 time and have ntpd not change the time if it fails to reach a time server? EDIT: I now do not think it is ntpd giving me problems, I turned ntpd off and it jumped forward seemingly randomly.

    Read the article

  • Visual Studio 2010 Parody

    Last week my acting career got off the ground (and likely burned and crashed just as quickly). You can check out my Visual Studio meets The Pink Panther-like a totally tongue in cheek video right here. be gentle :-) Tim Heuer even has some behind the scenes photos he may share. ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

    Read the article

  • Multilevel Queue Scheduling (MQS) with Round Robin

    - by stackuser
    I'm trying to use MQS to create a Gantt chart of 5 processes (P1-P5) as well as their waiting, response, and turnaround times (and averages of those metrics) within a CPU task schedule. Here's the basic table of arrival times and bursts: Here's my actual work version after ticking off the finished processes. The time quantum for each time slice is (2 queues) TQ1=4 and TQ2=3. Note that I'm doing MQS and NOT MLFQ: It just doesn't feel like I'm doing MQS right here, I know this gets a little complex but maybe someone can point out where I'm going totally wrong.

    Read the article

  • Why do I get unknown printer error 0xFA on my EPSON Workforce WF-3540 under Ubuntu 12.10?

    - by potofcoffee
    I recently bought an EPSON Workforce WF-3540, which I'm using under Ubuntu 12.10 with the official driver provided by EPSON. I am often printing batches of about a hundred pages, duplex. When I'm doing this, after about 20 pages, I regularly get an error message on the printer screen, telling me the printer encountered unknown error 0xFA, forcing me to turn the printer off and back on. I talked to EPSON about the problem, but they claim they're not supporting Linux and tell me to ask the Linux community about the problem (and possibly another driver?). So this is what I'm doing here... any ideas? Unfortunately, the documentation does not contain any information pertaining to error code 0xFA and the support hotline wasn't able to give me further information, either. BTW, the problem hasn't happened, so far, when I'm printing smaller batches or not using duplex. Whenever the problem happens, there's a page in the printer that's already been printed on one side, so I'm suspecting the problem's connected with the duplexer.

    Read the article

  • Get Hands On with Raspberry Pi via Free OS-Building Course

    - by Jason Fitzpatrick
    Cambridge University is now offering a free 12-segment course that will guide you through building an OS from scratch for the tiny Raspberry Pi development board–learn the ins and outs of basic OS design on the cheap. You’ll need a Raspberry Pi board, a computer running Windows, OS X, or Linux, and an SD card, as well as a small amount of free software. The 12-part tutorial starts you off with basic OS theory and then walks you through basic control of the board, graphics manipulation, and, finally, creating a command line interface for your new operating system. Hit up the link below to read more and check out the lessons. Baking Pi – Operating Systems Development HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows?

    Read the article

  • Stupid Geek Tricks: Disable Windows 7 Aero Peek in Two Clicks

    - by The Geek
    Most of you probably already know how to do this, but earlier today I was showing somebody how to turn Aero Peek off, and they were surprised at just how simple it is—you only have to use two mouse clicks to disable it. This method only disables the setting in the lower-right. If you’d like to disable the taskbar thumbnail version of Aero Peek, you’ll need to read our article on the subject. Or if you’d like to disable the delay, you can do that too.What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

    Read the article

  • Mod_rewrite and urls that don't end with .php

    - by Kevin Laity
    I'm trying to use Mod_rewrite to hide the .php extensions of my pages. However, it refuses to do any rewriting unless the input url ends with .php, which makes that impossible. I can confirm that rewriting works fine as long as the url has .php at the end. RewriteRule a\.php b\.php Works, while RewriteRule a\.html b\.html does not. How can I turn off this behavior and allow it to rewrite all urls? I'm on a shared host so whatever I do has to be done from a .htaccess file. Update: There seems to be some confusion about what I'm asking here. The question is not about how to write the rule, the question is about server configuration. The rule I'm using is fine, I can test that locally. But the server I'm working with is somehow configured so that mod_rewrite doesn't attempt to rewrite anything that doesn't end with .php

    Read the article

  • How to Build Your Own Siri App In a Browser

    - by ultan o'broin
    This post from Applications User Experience team co-worker Mark Vilrokx (@mvilrokx) about building your own Siri-style voice app in a browser using Rails, Chrome, and WolframAlpha is so just good you've now got it thrice! I love these kind of How To posts. They not only show off innovation but inspire others to try it out too. Love the sharing of the code snippets too. Hat tip to Jake at the AppsLab (and now on board with the Applications UX team too) for picking up the original All Things Rails blog post. Oracle Voice & Nuance demo on the Oracle Applications User Experience Usable Apps YouTube Channel Mark recently presented on Oracle Voice at the Oracle Usability Advisory Board on Oracle Voice and Oracle Fusion Applications and opened customers and partners eyes to how this technology can work for their users in the workplace and what's coming down the line! Great job, Mark.

    Read the article

  • Newton Game Dynamics: Making an object not affect another object

    - by Boreal
    I'm going to be using Newton in my networked action game with Mogre. There will be two "types" of physics object: global and local. Global objects will be kept in sync for everybody; these include the players, projectiles, and other gameplay-related objects. Local objects are purely for effect, like ragdolls, debris, and particles. Is there a way to make the global objects affect the local objects without actually getting affected themselves? I'd like debris to bounce off of a tank, but I don't want the tank to respond in any way.

    Read the article

  • Are there any good reasons to intentionally serve a new web site in Quirks mode?

    - by wsanville
    I was a little surprised that Amazon's site doesn't specify a doctype, and is rendered in quirks mode. What could possibly be the reason for this? I understand what quirks mode is and why doctypes were introduced, but I can't understand why this would be intentionally left off. I guess it might simplify markup if they're trying to support ancient browsers, but isn't that like shooting yourself in the foot when it comes to modern browsers, especially when their site is so Javascript rich? Does this level the playing field when it comes to supporting really old browsers? Is there something else I'm missing?

    Read the article

  • Digital Audio Output light on on MacBook Pro

    - by Emerson Hsieh
    I don't know if this problem happened when I installed Ubuntu before. Recently I noticed that when I boot Ubuntu, the Digital Audio Output light automatically switches on. Digital Audio Output light on means "Something wrong in the headphone port". Although my headphone is working in Ubuntu. I've heard that the headphone contains some magical "switch" that will fix the light problem. So I poked the headphone port with chopsticks, pens, paper clips, even my finger, and the Digital Audio Output light still stays on. I don't have this problem in OSX. How do I switch the light off?

    Read the article

  • What tools are available for remote communication when working from home or with a distributed team?

    - by Ryan Hayes
    My supervisor is allowing my team to dip our toes in the water of working from home. Considering a recent aquisition of another company is requiring some employees to love this new idea which will hack up to an hour off their commute into work every morning, I really want this to succeed. In order to make it a success, we need good tools to make our lives a lot easier. We currently are set up with OpenVPN, and Team Foundation Server 2010 with SharePoint 2010, and use Live Messenger (for SharePoint integration and easier remote desktop) for IM. These are just what we use (and they are currently working well) , but you can suggest other products. So, what are some great tools that will helps us collaborate, communicate, and generally work together when we're hours apart?

    Read the article

  • Day 5 of Oracle OpenWorld 2012 October 4th

    - by Maria Colgan
    Its the last day of Oracle OpenWorld and we have saved the very best for last. So hopefully you are still awake and functioning at this stage! Today, we present An Insider’s View of How the Optimizer Works (Session CON8457) at Moscone South - room 104. This session explains how the latest version of the optimizer works and the best ways you can influence its decisions to ensure you get optimal execution every time We really hope you have enjoy the conference so far and will stop by our session this afternoon before you head off home! +Maria Colgan

    Read the article

  • Should I be paid for time spent learning a framework?

    - by nate-bit
    To give light to the situation: I am currently one of two programmers working in a small startup software company. Part of my job requires me to learn a Web development framework that I am not currently familiar with. I get paid by the hour. So the question is: Is it wholly ethical to spend multiple hours of the day reading through documentation and tutorials and be paid for this time where I am not actively developing for our product? Or should the bulk of this learning be done at home, or otherwise off hours, to allow for more full-on development of our application during the work day?

    Read the article

  • Ask the Readers: How Do You Keep Your Email SPAM Free and Tidy?

    - by Jason Fitzpatrick
    Email can be a fantastically efficient way to deal with communication, but not if it’s bogged down with SPAM messages and poorly organized. This week we want to hear all about the tips, tricks, and ninja-filters you use to keep your inbox tidy. Whether it’s special filters for your Bacon (spam-like marketing that you actually want to receive and occasional review), services you use to block spammers, or organization tips you use to keep your email inbox streamlined with no message unreplied to, we want to hear all about it. Sound off in the comments with your proclamations of your inbox-fu and how you maintain zen-like mastery over your email workflow. Be sure to check in on Friday for the What You Said roundup. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

    Read the article

  • Build a LEGO Creation without Leaving Your Cube

    - by Jason Fitzpatrick
    Just because you’re stuck at your desk doesn’t mean you can’t sneak in a little fun. At BuildWithChrome you can slap together virtual LEGO bricks with ease. The site, a collaboration between Google and LEGO, shows you a massive map of Australia and New Zealand covered in thousands of LEGO base plates. Zoom in, select a base plate, and get building. The block selection is fairly limited (you can work with the kind of blocks you’d find in a generic LEGO brick pack) but it’s still quite a bit of fun. When I took it for a test drive, I started simple by building a house-like structure: With the addition of a few more pieces it would be possible to pull off the wizard shop my wife and daughter just built: How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

    Read the article

  • Get Creative soundcard working correctly

    - by schwiz
    I am trying to get sound going on my fresh install of 10.10. I have a creative fatlity branded sound card. My ALSA information. Most things seems to be working out of the box, once I turned off my onboard sound in my BIOS the soundcard kicked in. However, the system sounds aren't working (I love those drums and the road runner sound when you press backspace). Also, with a 7.1 setup my center channel and subwoofer don't work at all. All other channels are working like a champ. So I am trying to accomplish two things, get system sounds working and get center/sub channels working. How should I try to fix this?

    Read the article

< Previous Page | 207 208 209 210 211 212 213 214 215 216 217 218  | Next Page >