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• Networking Icon Keeps Disappearing

  - by Zelda64fan

  Almost every time I unlock my computer the networking icon and the Bluetooth icons are missing from the panel. They also disappear if I disable networking with the 'hardware switch', even though before they would just switch to a 'disabled' look. I know I can get the networking one back by running nm-applet, but I'd rather just find a way to make it stop disappearing. What causes this? This is on 12.10 64-bit, if it matters. UPDATE: I ran it from terminal, and got this: $ nm-applet ** Message: applet now removed from the notification area ** Message: PID 31340 (we are 28924) sent signal 15, shutting down... And then it exited. So it thinks it's supposed to quit...? I haven't been able to figure out what process had that ID.

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• What is the best way to INSERT a large dataset into a MySQL database (or any database in general)

  - by Joe

  As part of a PHP project, I have to insert a row into a MySQL database. I'm obviously used to doing this, but this required inserting into 90 columns in one query. The resulting query looks horrible and monolithic (especially inserting my PHP variables as the values): INSERT INTO mytable (column1, colum2, ..., column90) VALUES ('value1', 'value2', ..., 'value90') and I'm concerned that I'm not going about this in the right way. It also took me a long (boring) time just to type everything in and testing writing the test code will be equally tedious I fear. How do professionals go about quickly writing and testing these queries? Is there a way I can speed up the process?

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• How can I pull data from PeopleSoft on demand?

  - by trpt4him

  I work in IT at a university and I'm working with about 5 different departments to develop a new process for students to apply to a specific school within the university (not the university as a whole). We're using a web-based college application vendor and adding the applicant questions for the school itself to the main university application. Currently the main application feeds into PeopleSoft. The IT staff here is building a new table to hold just our school's applicant data. I want to be able to access that data from PeopleSoft for use in external applications, but our IT staff doesn't really seem to understand what I'm requesting, as they simply tell me I can have access to the PS query tools. The problem is, I don't want to run just ad hoc queries, I want to be able to connect from outside PeopleSoft and show current data within the external app. I am unable to find documentation or get a clear answer to my question. Does PeopleSoft support access via a web services API or anything similar, and does that sound like the right direction for me to take?

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• 12.4 LTS after update fails to login

  - by user111839

  An update today (30-11-2012) on 12.4 lead to failure to log in. The system gets through its boot process then presents the logins, on choosing any of these immediately returned to log-in screen with no error. Machine is an AMD FX 64 on an Asus MB using the built-in graphics. If no one knows what this might be, what's the alternative distro to Ubuntu? It's the second time something like this has happened after an update in three months, kudos to the Ubuntu team but I need more reliability. Cheers, thanks to all.

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• Announcement: Video Demos Now Available

  - by Richard Bingham

  The YouTube Channel will complement our blog posts, showing you many customization and development tasks using the Fusion Applications platform. This includes: Using Page Composer and Application Composer for run-time customization Using JDeveloper for ADF design-time customization Using BI Composer tools for reports and analytics customization Using SOA development tools for BPEL and BPM customization These videos are bite-sized, only a few minutes each, and show a process from start to finish with no slides or static screenshots. We have an initial library of 14 videos covering many popular areas and a plan to release many more, roughly on a weekly basis. We hope you find these useful, and if you have comments or have things you would like to see then please leave a comment below and we'll do our best. Enjoy the show!

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• gnome-panel has multiple rows -- how to undo that?

  - by towi

  On Ubuntu 12.04 I use openbox with a single "gnome-panel" started. But after trying to configure my two screen in Xinerama mode I got additional rows of panels each time X restarted. And despite I completely reverted to my one-screen-X-config the gnome-panel displayed has 4 rows (4 at top sreen, 4 at bottom) only the outermost row has content, the other 3 are empty there is only one gnome-panel process running some widgets appear 4 times, too, although they run only once when I switch away from openbox using unity I am back to 1 row temporarily What went wrong here? How do I undo that? Things that did not help: rm -Rf .gnome2 .gconf/ .compiz-1/ pkill panel, and restarting it

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• Update to 13.10 without GUI access

  - by Tom

  After upgrading 13.04 with the latest patches, I'm getting some really weird problems -- namely, logging in at the GUI just dumps me back at the GUI login screen. I can, however, get command line access from Ctrl-Alt-F1, and remotely via SSH. Given that I was doing these updates to step to 13.10, I figure I might as well continue the process, and then deal with the fallout once I get there. However, how can this be achieved with only the command line, and no X available? The only method I've found thus far is to run 'update-manager', which does not appear to have a CLI mode (and will not start without access to X). What's the solution? Thanks!

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• Amnesic Environment

  - by Mike Clark

  My team is looking for a technical term which may or may not exist. We are trying to describe an environment, such as a database, which has been built up over time with little or documentation about the change process that has gone into it. Generally these are legacy systems who's original developers have long since moved on and they are in such a tangled and unmanageable state that the only way to recreate the environment, say for testing purposes, is to copy it and do your best guess at re-configuring it for its new purpose. So far the best term we have come up with is Amnesic, such as "setting up the new test environment is going to be a challenge because it is an amnesic db." However, we are still not quite happy with the term and were wondering if a better and/or more accepted term for this situation exists.

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• Cannot upgrade system because of this error

  - by user292375

  Setting up mongodb-org-server (2.6.1) ... * Starting database mongod [fail] invoke-rc.d: initscript mongod, action "start" failed. dpkg: error processing mongodb-org-server (--configure): subprocess installed post-installation script returned error exit status 1 No apport report written because MaxReports is reached already dpkg: dependency problems prevent configuration of mongodb-org: mongodb-org depends on mongodb-org-server; however: Package mongodb-org-server is not configured yet. dpkg: error processing mongodb-org (--configure): dependency problems - leaving unconfigured No apport report written because MaxReports is reached already Errors were encountered while processing: mongodb-org-server mongodb-org E: Sub-process /usr/bin/dpkg returned an error code (1)

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• Mid level IT lead [closed]

  - by Arihant

  I am a mid level IT lead at a IT support company with 8 years of experience. I don't get a lot of opportunities to learn at my organization since we primarily support existing systems and just fix issues arising on a day to day basis, We are not expected by the parent company to develop solutions from scratch. I aspire to become an Architect. Please guide me how should I plan to acquire the required skills and Knowledge esp since my company doesn't provide me with the right opportunities. The city where i am in doesn't have a lot of s/w development companies they are mostly services companies. Thanks a lot for your replies. Please give me some directions on how do I plan the self learning process ? Personal commitment won't let me move out of my current capacity to join a entry level job outside as of now . Atleast I should be well prepared to grab the opportunity when the time comes.

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• Keeping application backend and UI synchronised

  - by Deanna

  Hi all. I have an app that works with a list of objects so has one central keyed list. The main window has a tree containing these object with some information, which is easy enough to populate as a one off event after loading. Now, the complicated part, any part of the application can add, remove, and more importantly change the details of those objects at any time (all in the same process) and I'd like the tree to update to suit. I have a few options including passing events back down from the object to the list to the form which seems to be the most flexible way. I can also do it lazily and repopulate the tree each time or periodically (very hackish). Does anyone have any better thoughts on how to structure this? This is being done in C# 2.0 but the concepts apply to any environment. Thanks

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• What is the difference from the push and pull development models?

  - by michelpm

  I was reading Extreme Programming Explained, Second Edition and in the chapter 11 "The Theory of Constraints" the authors talk about the old and obsolete "push" development model and the XP way, the "pull" development model. It looks like a quite important concept, but it takes only a very small paragraph and two images that are mere illustrations of the "waterfall" and iterative process, nothing specific about these models except by the image caption. I searched and it doesn't go any further about it in the rest of the book. I couldn't find any further explanations or discussions about it in the Internet either. If the only difference about those is that one is "waterfall" and the other is iterative, them why push and why pull? Does anyone understand what is really the difference between those two and give some good examples?

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• Stuck in screen saver during upgrade

  - by vinni_f

  I'm upgrading from 10.04 to 12.04. The screen saver is now on and I can't exit it. If I type my password or move the mouse the screen flickers. Regardless of what I do the screen saver stays and the login prompt never shows. If I type my password and then enter it, it does nothing. Last time I checked the packages were all downloaded and I was in the install process. I really want this upgrade to work. It would be really bad to have to restart from a fresh install. Cheers.

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• How to deal with OOP design problems in interviews?

  - by haps10

  This is a question where I seek guidance from fellow/senior developers to get into my dream company - it's a pioneer in OOP and Agile. I've already failed once to clear an interview. One part I feel most challenging is to come up with a proper Object Oriented design(classes, interfaces, methods, interactions etc.) in a very short time for certain situations like Pacman, Game Of Life and so on. As the problems are unprecedented ones - my approach is mostly to try different things and then make decisions - which they feel is not clear and not what they expect from a developer with 5+ years of experience. I've already studied a few books on patterns, OOP - it didn't help me much and I think it'll take a bit more than that. Could some one please guide on what specifically shall I practice so that I can do better at design problems as above. I want to refine my approach and have a better thought process.

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• Where in a typical rendering pipeline does visibility and shading occur?

  - by user29163

  I am taking a computer graphics course. The book and the lecture notes are vague on the on the order of flow between the different steps in the rendering process. For example, if we have specified a view in a scene, and then want to perform a projection transformation for that given view, then we have to go through a sequence of transformations. In the end we end up with a normalized "viewcube" ready to be mapped 2D after clipping. But why do we end up with a cube (ie 3D thing), when a projection results in projecting the 3D objects to 2D. (depth information is lost?) The other line of reasoning is that all information further needed is stored within the "cube" and that visibility detection and shading is performed with respect to this cube and then we perform rasterezation.

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• The underlying provider failed on Open

  - by aghausman12

  The underlying provider failed on Open is an entity framework error and with a simple fix it is little difficult to sort out what is going wrong. 1) if you are using IIS 7 with Integrated Security in connection string. Make sure your IIS user have appropriate permissions to access database. 2) If you are using Visual Studio built in Web Server and facing this issue. Simple fix is to either re-start Visual Studio or Kill the process of Web Server which is (WebDev.WebServer*.exe). I was in the second...(read more)

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• ASUS VX-6 Laptop Wireless not connecting

  - by user2152790

  Someone posted a script a couple days ago, here is my output.Pastebin I can see wifi SSIDs in network, but cannot connect to mine. The only time wifi worked on 13.10 was in the Live CD, but wifi stopped working as soon as install process started. Did below but made no difference. sudo apt-get install bcmwl-kernel-source sudo modprobe -rv brcmsmac sudo modprobe -v wl What I do next? I tried Software&Updates and it showed 1 proprietary driver in use. This sounds like a WPA/WPA2 issue? Wifi works when I tried Zorin OS 7.1, wifi always worked in windows 7.

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• Monitor screen size and programming ease

  - by rrazd

  I recently heard that a big part in successful/quick debugging and easing the process of programming is to use a big screen. I may be purchasing a new computer in the future and this has me wondering: 1)Is the aforementioned statement actually true or is it a bit of a stretch? 2)Have you noticed that this plays a significant enough part to buy a bigger screen if the bigger screen is significantly more expensive? 3)Is it common for developers to work on 13'' laptop screen as their main (and only) workstation (this is what I currently develop on) or is this actually disadvantageous? This may be subjective but any professional opinions/experiences would be greatly appreciated!

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• How do you assign commands to keys to in Terminal?

  - by NES

  Is there a solution to assign special key combinations to words in terminal use. For example the less command is very usefull and i use i a lot to pipe the output of another process through it. The idea would be to set up special key combinations that are only active in terminal use assigned to write different commands? So pressing CTRL + l in terminal window could write | less or CTRL + G could stand for | grep Note: i just mean adding the letters to commandline not execute the finally. A similar way what's tabcompletion but more specific.

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• What plug in or module to use with WordPress? [migrated]

  - by Qacro

  I am developing travel website where users can search and book their travel deal. It goes like this: Providers are creating their travel deals (same as some blogger create blog in WordPress); Users book wanted travel deals; Providers, who have their account where they can see if users book their deal, are notified by the email and sms about just booked (sold) deal. Site is going to be developed using WordPress. Is there any plugin or module that I can use to accomplish this, or at least something similar to reconfigure and not to take this process from scratch?

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• Generating CMakeLists.txt

  - by vanna

  I got a bunch of C++ sources files and headers. They may use external libraries such as Boost e.g. I am interested in the process of building binaries for Windows and *nix. Makefiles (*nix) and .vcproj (Windows) call compilers with some specifications such as the order of compilation, compilation options and stuff. CMakeLists.txt can be used by CMake to build either makefiles or .vcproj and use very helpful commands such as recursive search of files, automatic linkage with known libraries, installers, variables that can be used in source files... Is there any existing tool that would generate a CMakeLists.txt from specified options ? Options could be like : scan this folder and make a library out of it, then scan this other folder and make an executable and automatically link both with Boost as well along with a user friendly installer with generated INSTALL.txt and README.txt. Something very powerful like that.

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• How to design this procedural application into object oriented format?

  - by DavidL

  I'm building an application that basically pulls json data from a bunch of websites, processes it in some way and then writes it to a file. It is very easy to write this in a procedural way. I was wondering how this could be done in an object oriented way. Currently, the application looks something like this: res = get_json(link); process(res); write(res); Even if writing this in an object oriented way is not the best idea, tell me how it could be done because I have trouble with it.

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• In-memory DB to perform intersects on set slices

  - by IanC

  I have a specific programming need where I need to efficiently store large sorted sets in memory, query them for ranges, and intersect them against other sets that are also queried for ranged. I am looking at Redis, but I can't see a range slice command. MongoDB can only use 1 index, so it has to perform row-level scans, whereas I wish to process using columns that are intersected. I'm also looking at Counchbase, but can't easily determine from the documentation if it is suited to this. I know it uses Memcached, which is AFAIK not suited to this usage. Could anyone share potential solutions for this specific problem? EDIT For example, I need to perform the following: Get the IDs of all cars where the price is between 2000 and 3000, and intersect that will all cars where the engine capacity is between 3000 and 4000.

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• Implementing cache system in Java Web Application

  - by TGM

  I worked with JPA (Eclipselink implementation) and Hibernate. As I understand these two have great caching systems. I am interested in caching in a Web application and in order to better understand the process I'm trying to implement something on my own. Sadly, I cannot find any in depth documentation about this subject. I'm interested in things like high scalability, sharing memory on different machines and other important theoretical matters. Is there any tutorial or open project I could check out? Thank you! *LE: * I want to cache DB information in POJOs just like JPA or Eclipselink

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• How come many of the AppShowdown apps aren't available in Ubuntu anymore?

  - by kermit666

  After upgrading to 12.10 I've noticed that I can't install some of the nice apps created for the AppShowdown, such as: Cuttlefish Blubphone (Lightread also came out quite late in 12.10) It seems such a waste having these great new apps added to the repository, only to exclude them in the first next version. I'm wondering why aren't these apps automatically available in a newer version of Ubuntu. Is it simply that the API is so different that it requires major rewrites and programmer activity or is it some bureaucratic reason? Are there any plans to improve this process?

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