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• How to configure auto-logon in Active Directory

  - by Jonas Stensved

  I need to improve our account management (using Active Directory) for a customer support site with 50+ computers. The default "AD"-way is to give each user their own account. This adds up with a lot of administration with adding/disabling/enabling user accounts. To avoid this supervisors have started to use shared "general" accounts like domain\callcenter2 etc and I don't like the idea of everyone knowing and sharing accounts and passwords. Our ideal solution would be to create a group with computers which requires no login by the user. I.e. the users just have to start the computer. Should I configure auto-logon with a single user account like domain\agentAccount? Is there anything else to consider if I use the same account for all users? How do I configure the actual auto-logon with a GPO on the group? Is there a "Microsoft way" without 3rd party plugins? Or is there a better solution?

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• Funnelling http traffic

  - by spencer p

  I have a situation where a large batch of servers (X), on demand, need to request data from a smaller set of web servers (Y). The worst case scenario is if all servers in X decide to fetch different requests to one server in Y. That would be X amount of connections, which could be a very large burst of traffic. The best case scenario is if 1 server in X hit 1 server in Y in tandem. Life does not work like this. One idea to entertain is placing a proxy, similar to squid between X and Y. All of X servers can connect to this proxy, but would result in a few persistent (http keepalive) connections to Y. If The few were say, 3 or 4, then it would funnel. If we could then rate limit those connections and traffic decides to spike unusually high, we wouldn't hurt anyone but ourselves. Thoughts?

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• Impersonation on IIS 7.0 passes the machine credentials for Crystal Reports

  - by pknox

  On a 32-bit Windows 2008 server running the Donor2 Application in the Classic .NET Managed Pipeline mode, configured for Windows Integrated Authentication and Impersonation, all of the .NET pages are passing the authenticated user’s credentials [DomainName\UserName]. This is the correct, expected behavior. The Crystal Reports pages, instead of passing the authenticated user’s credentials, are passing the IIS Server’s credentials [DomainName\MachineName$]. One of the very frustrating aspects of this situation is that I have another server which, as far as I can tell, is configured identically. That server, when loading Crystal Reports, is passing the authenticated user’s credentials [DomainName\UserName] as expected. I have obviously missed something, but I have no idea what it could be.

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• Server 2008 locks me out when not using the machine for 10 minutes after installing SP2

  - by Daniel Magliola

  I have recently installed Service Pack 2 on my Windows Server 2008 machine (which I use actively for development, and i'm always logged on to). Now, after this installation, when I don't use the machine for some time (let's say, 10 minutes), it locks itself so I have to press Ctrl+Alt+Del and log back in. I have already checked the Screen Saver settings, and it's "None", as it always has been. I also looked into power settings and everything looks right (20 mins to turn off monitor, and i haven't found any settings regarding locking me in there). Do you have any idea what I can do so that it won't lock me out after not using the machine for a while? Thanks! Daniel

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• Using a 3g usb dongle as Cisco router access point

  - by beakersoft

  We have an office opening, and we aren't going to have comms into the building when management want the building to open. Our only option (I think) Is to try and hook up a 3/4g dongle to something to act as the access point, and send all the traffic via that. The model of router we use wont support the usb dongle, so we need some sort of 'bridge' My idea was to build a Linux box, plug the dongle into that and then via the Ethernet ports plug the router in. We need the Cisco router in the equation as we create VPN connections over that back to head office. My question is will this work?

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• How to set default permissions for automounted FAT drives in Ubuntu

  - by piman

  I've got many FAT32 drives that I'd like to mount in Ubuntu such that they have permission mode 700 for directories and 600 for all other files. By default, they have 755 for all files, which is not particularly useful since almost no non-directories should be executable, and it screws up version control repos hosted on the drives. "Back in the day" I would have had the drives listed in /etc/fstab with the umask/dmask I want and there was no such thing as a default. These days, drives automount under their volume names. Which is great, except now I have no idea how to set the default. I have tried changing the /system/storage/default_options/vfat/mount_options gconf key with no apparently effect. It was 077 initially but the mounted drive reflected a default of 022; changing it and re-inserting the drives resulted in the files still having permission bits of 755.

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• Time machine folders won't restore recursively

  - by Brian Postow

  I have a Snow Leopard system with Time Machine. Every so often I need to look at an old folder, so I go in and try to restore it, usually to a different location. What I end up with is an empty folder of the appropriate name. none of the files, nothing. It doesn't give any error messages. The files ARE there, because I can see them, also, if I go in via the mount point, and trace down through the file system, I can do a filecopy of the folder, and everything turns out fine. However, that seems like a bad idea. so, I'd like to know why he "right" way doesn't work... I believe that it used to work. It's also possible that it only doesn't work for certain folders. I haven't tested extensively.

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• Sample domain model for online store

  - by Carel

  We are a group of 4 software development students currently studying at the Cape Peninsula University of Technology. Currently, we are tasked with developing a web application that functions as a online store. We decided to do the back-end in Java while making use of Google Guice for persistence(which is mostly irrelevant for my question). The general idea so far to use PHP to create the website. We decided that we would like to try, after handing in the project, and register a business to actually implement the website. The problem we have been experiencing is with the domain model. These are mostly small issues, however they are starting to impact the schedule of our project. Since we are all young IT students, we have virtually no experience in the business world. As such, we spend quite a significant amount of time planning the domain model in the first place. Now, some of the issues we're picking up is say the reference between the Customer entity and the order entity. Currently, we don't have the customer id in the order entity and we have a list of order entities in the customer entity. Lately, I have wondered if the persistence mechanism will put the client id physically in the order table, even if it's not in the entity? So, I started wondering, if you load a customer object, it will search the entire order table for orders with the customer's id. Now, say you have 10 000 customers and 500 000 orders, won't this take an extremely long time? There are also some business processes that I'm not completely clear on. Finally, my question is: does anyone know of a sample domain model out there that is similar to what we're trying to achieve that will be safe to look at as a reference? I don't want to be accused of stealing anybody's intellectual property, especially since we might implement this as a business.

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• Hybrid Graphics on Ubuntu 12.04 switching to discrete

  - by cfstras

  I have a Sony Vaio VPCCB-27FX with hybrid graphics. Using vgaswitcheroo enables me to switch my discrete card off to save power. Now when i want to switch to the discrete card for performance, my system freezes. I already tried logging out and killing x with service lightdm stop, but still, it freezes as soon as I echo DIS > switch. typing blindly, echo IGD > switch returns me to my console where it reads [ 179.555171] i915: switched off, but it seems the discrete card never gets switched on... running echo DDIS > switch gives me the following: [540....] [drm:atop_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [540....] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEE2 (len 62, WS 0, PS 0) @ 0xCEFE [540....] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing BBF6 (len 1036, WS 4, PS 0) @ 0xBCF3 [540....] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing BB8C (len 76, WS 0, PS 0) @ 0xBB94 [541....] [drm:r600_RING_TEST] *ERROR* radeon: ring test failed (scratch(0x8504)=0xFFFFFFFF) [541....] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume after that, the atombios part repeats a few times. also, the terminal locks up again and sysrq+REISUB is my only rescue. Has anybody an idea how I can switch to my discrete card without the system locking up? #uname -srvmpio Linux 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux #lsb_release -r Description: Ubuntu 12.04 LTS

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• ATI AMD Radeon 6670M 2GB Dual External monitors

  - by kellax

  I have HP Pavilion dv7 BeatsAudo model: dv7-6b with following specifications: CPU: Intel i7-2670QM ( Quad Core ) 8 CPU's @ 2.2Ghz RAM: 8GB @ 1066 GPU: ATI Radeon HD 6770M 1GB Notebook has two slots: HDMI and VGA On my VGA i have an external monitor 24" Samsung, any idea if my notebook could support a second external monitor as well. I do a lot of development work, i havent got a second monitor to test it yes but i know there can be problems. I would like to have a monitor connected on my VGA and on my HDMI so two external monitors and notebooks monitor. Would this be viable ?

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• Tomcat 5.5 - second application returs 404

  - by Tomas Tintera

  There are two versions of web application. Want to have both on one machine so I can test upgrade. If there is one of them copied to Tomcat's webapplications directory and then Tomcat is started, it works fine. So if there is only have only ...webapplicatios\ROOT\... ...webapplicatios\myApp25\... it works fine. Or when there is only ...\webapps\ROOT\... ...\webapps\myApp26\... it works fine too. If I upload both ...\webapps\ROOT and ...\webapps\myApp25 ...\webapps\myApp26 only one of the apps will work. The other one returns 404, page not found. It's running on Windows7 and I use Tomcat 5.5. Tomcat is just default installation. Any idea what to check? How to make both running both apps? Thank you in advance for any help. I'm beginner regarding TC.

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• Why is my query soooooo slow?

  - by geekrutherford

  A stored procedure used in our production environment recently became so slow it cause the calling web service to begin timing out. When running the stored procedure in Query Analyzer it took nearly 3 minutes to complete.   The stored procedure itself does little more than create a small bit of dynamic SQL which calls a view with a where clause at the end.   At first the thought was that the query used within the view needed to be optimized. The query is quite long and therefore easy to jump to this conclusion.   Fortunately, after bringing the issue to the attention of a coworker they asked "is there a where clause, and if so, is there an index on the column(s) in it?" I had no idea and quickly said as much. A quick check on the table/column utilized in the where clause indicated indeed there was no index.   Before adding the index, and after admitting I am no SQL wiz, I checked the internet for info on the difference between clustered and non-clustered indexes. I found the following site quite helpful OdeToCode. After adding the non-clustered index on the column, the query that used to take nearly 3 minutes now takes 10 seconds! Ah, if only I'd thought to do this ahead of time!

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• Why is math taught "backwards"? [closed]

  - by Yorirou

  A friend of mine showed me a pretty practical Java example. It was a riddle. I got excited and quickly solved the problem. After it, he showed me the mathematical explanation of my solution (he proved why is it good), and it was completely clear for me. This seems like natural approach for me: solve problems, and generalize. This is very familiar to me, I do it all the time when I am programming: I write a function. When I have to write a similar function, I generalize the problem, grab the generic parts, and refactor them to a function, and solve the original problems as a specialization of the general function. At the university (or at least where I study), things work backwards. The professors shows just the highest possible level of the solutions ("cryptic" mathematical formulas). My problem is that this is too abstract for me. There is no connection of my previous knowledge (== reality in my sense), so even if I can understand it, I can't really learn it properly. Others are learning these formulas word-by-word, and get good grades, since they can write exactly the same to the test, but this is not an option for me. I am a curious person, I can learn interesting things, but I can't learn just text. My brain is for storing toughts, not strings. There are proofs for the theories, but they are also really hard to understand because of this, and in most of the cases they are omitted. What is the reason for this? I don't understand why is it a good idea to show the really high level of abstraction and then leave the practical connections (or some important ideas / practical motivations) out?

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• Best practice for scaling a single application source to multiple nodes

  - by Andrew Waters

  I have an application which needs to scale horizontally to cover web and service nodes (at the moment they're all on one) but interact with the same set of databases and source files (both application code and custom assets). Database is no problem, it's handled already with replication in MongoDB. Also, the configuration of the servers are the same (100% linux). This question is literally about sharing a filesystem between machines so that its content is always correct, regardless of the node accessing it. My two thoughts have so far been NFS and SAN - SAN being prohibitively expensive and NFS seeing some performance issues on the second node with regards to glob()ing in PHP. Does anyone have recommended strategies or other techniques that don't involved sharding data across nodes or any potential gotchas in NFS that may cause slow disk seek times? To give you an idea of the scale, the main node initialises it's application modules in ~ 0.01 seconds. The secondary is taking ~2.2 seconds. They're VM's inside a local virtual network in ESXi and ping time between them is ~0.3ms

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• Threading models when talking to hardware devices

  - by Fuzz

  When writing an interface to hardware over a communication bus, communications timing can sometimes be critical to the operation of a device. As such, it is common for developers to spin up new threads to handle communications. It can also be a terrible idea to have a whole bunch of threads in your system, an in the case that you have multiple hardware devices you may have many many threads that are out of control of the main application. Certainly it can be common to have two threads per device, one for reading and one for writing. I am trying to determine the pros and cons of the two different models I can think of, and would love the help of the Programmers community. Each device instance gets handles it's own threads (or shares a thread for a communication device). A thread may exist for writing, and one for reading. Requested writes to a device from the API are buffered and worked on by the writer thread. The read thread exists in the case of blocking communications, and uses call backs to pass read data to the application. Timing of communications can be handled by the communications thread. Devices aren't given their own threads. Instead read and write requests are queued/buffered. The application then calls a "DoWork" function on the interface and allows all read and writes to take place and fire their callbacks. Timing is handled by the application, and the driver can request to be called at a given specific frequency. Pros for Item 1 include finer grain control of timing at the communication level at the expense of having control of whats going on at the higher level application level (which for a real time system, can be terrible). Pros for Item 2 include better control over the timing of the entire system for the application, at the expense of allowing each driver to handle it's own business. If anyone has experience with these scenarios, I'd love to hear some ideas on the approaches used.

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• Apache + plesk vhost problem: .htaccess ignored!

  - by DaNieL

  Hi guys, i have a problem with a simple apache configuration. When the user ask for https://mydomain.com i have to redirect it to https://www.mydomain.com, becose my https certificate is valid just for the domain with www. I create the vhost.conf into my /var/www/vhosts/mydomain.com/conf/ directory, with inside: <Directory /var/www/vhosts/mydomain.com/httpsdocs> AllowOverride All </Directory> And my .htaccess file into the /var/www/vhosts/mydomain.com/httpsdocs/ is: RewriteEngine on RewriteCond %{HTTPS_HOST} ^mydomain\.com RewriteRule ^(.*)$ https://www.mydomain.com/$1 [R=301,L] But seem like the .htaccess is completely ignored. Any idea?

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• this.BoundingBox.Intersects(Wall[0].BoundingBox) not working properly

  - by Pieter

  I seem to be having this problem a lot, I'm still learning XNA / C# and well, trying to make a classic paddle and ball game. The problem I run into (and after debugging have no answer) is that everytime I run my game and press either of the movement keys, the Paddle won't move. Debugging shows that it never gets to the movement part, but I can't understand why not? Here's my code: // This is the If statement for checking Left movement. if (keyboardState.IsKeyDown(Keys.Left) || keyboardState.IsKeyDown(Keys.A)) { if (!CheckCollision(walls[0])) { Location.X -= Velocity; } } //This is the CheckCollision(Wall wall) boolean public bool CheckCollision(Wall wall) { if (this.BoundingBox.Intersects(wall.BoundingBox)) { return true; } return false; } As far as I can tell there should be absolutely no problem with this, I initialize the bounding box in the constructor whenever a new instance of Walls and Paddle is created. this.BoundingBox = new Rectangle(0, 0, Sprite.Width, Sprite.Height); Any idea as to why this isn't working? I have previously succeeded with using the whole Location.X < Wall.Location.X + Wall.Texture.Width code... But to me that seems like too much coding if a simple boolean check could be done.

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• How can I disable recent documents in Unity?

  - by detly

  How do I disable the tracking and display of recently opened files (and whatever else is remembered) in a default installation of Ubuntu 11.10? (Note that this is not a duplicate of How can I keep recent files from appearing in Unity?, since that question and its answers are concerned with temporary and specific filtering. I want to disable it completely for a single user account.) Okay, to deflect the inevitable and expand on my motivation... While trawling the usual forums and Google results for a solution, it (unsurprisingly) seems that the near-universal use cases for this request are either browsing porn or Warhammer research. And the obvious solution to this is to create another user account to contain all evidence. However, this is not why I'm asking, and I don't say that to get all high and mighty about it, it's because this answer won't help. (Even though I really don't have any interest in Warhammer, and I have no idea how that paint pot and brush ended up in my drawer, no that's not glue on my thumb, etc.) My actual use case is that I use my personal laptop for presentations in different circles of my life. I have a user account set up with all the settings I like for presentations (shortcuts, small launcher, default associations, etc). But I don't want an accidental keystroke (or the find dialog) to display other recent presentations I've given, or the files I used in composing the presentation, or whatever. I also don't want to have to recreate this profile for every single presentation I might give. I just want a nice little isolated, memoryless, clean corner of my notebook for public display.

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• Windows 7 can ping but can't see device on other subnet

  - by user192702

  I have 2 Windows 7 on 2 different subnets but 1 of them is unable to reach a NAS. The topology is as follow. Any idea why this is the case? Is there some Windows settings I need to apply? Subnet 1 - PC 1 - NAS Subnet 2 - PC 2 PC 1 is able to do the following: - Load the admin page on the browser. - Show the NAS under Windows Explorer - Network. - Access the NAS when typed in \\ in Windows Explorer. PC 2 is unable to do any of the above 3. It can however ping the NAS and get a response.

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• Defining work days and work time

  - by user2553268

  I'm working on development of SMS parking software, and I'm stuck at one point for a month... I need to implement periods of payment (or work time, of a work day, if you will). Here's the problem: For an example, traffic wardens work from Monday to Saturday. From Monday to Friday, the work times are from 07:00 to 21:00, and on Saturday, the work time is from 07:00 to 14:00. The project request was, that the customer can pay parking by SMS unlimited, which I did, but didn't implement this logic. I started with making a table for this periods of payment, it consists of: dayofweek (INT, for use with mysql function DAYOFWEEK, to tell me which day in week is the current date), work_start and work_stop (DATETIME, for defining starting and ending the work day), but I'm unsure if I should use DATETIME, beacuse of the date, or should I use only TIME. The idea is this: If you send an SMS, at 20:50, Monday, it should be valid until 07:50, Tuesday (it's payed by the hour). Extending the time of payment, regarding the work time in week. Currently, it works with extending time by the hour without this rule. Really would use some help, or some ideas, I'm stuck with this for quite some time...

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• Service layer coupling

  - by Justin

  I am working on writing a service layer for an order system in php. It's the typical scenario, you have an Order that can have multiple Line Items. So lets say a request is received to store a line item with pictures and comments. I might receive a json request such as { 'type': 'Bike', 'color': 'Red', 'commentIds': [3193,3194] 'attachmentIds': [123,413] } My idea was to have a Service_LineItem_Bike class that knows how to take the json data and store an entity for a bike. My question is, the Service_LineItem class now needs to fetch comments and file attachments, and store the relationships. Service_LineItem seems like it should interact with a Service_Comment and a Service_FileUpload. Should instances of these two other services be instantiated and passed to the Service_LineItem constructor,or set by getters and setters? Dependency injection seems like the right solution, allowing a service access to a 'service fetching helper' seems wrong, and this should stay at the application level. I am using Doctrine 2 as a ORM, and I can technically write a dql query inside Service_LineItem to fetch the comments and file uploads necessary for the association, but this seems like it would have a tighter coupling, rather then leaving this up to the right service object.

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• How can I get nvidia-96 installed?

  - by Bob

  I'm at my wits end here. This is my last effort before I go back to Windows. I need to get nvidia-96 proprietary driver installed. Synaptic won't install it because it says it has dependencies. I installed every single dependency it listed except for "xorg-video-abi-10" which does not show up as an item that can be installed. I have no idea what to do. Using 11.10 with a NVIDIA Geforce 3 GPU. Anyone know how to get this dang driver installed? @fossfreedom: the opensource driver is extremely slow. So slow that the OS is unusable—words appear seconds after I type them—programs take forever to perform actions. Also it is causing my monitor to turn on and off for no reason. @yossile: synaptic shows that I have xserver-xorg-core installed. And xserver-xorg-core-udeb does not show up as something that can be installed. @papseddy: when I try to install the downloaded nvidia driver it says it won't work until I disable Nouveau kernel driver. I have tried everything to get this dang Nouveau kernel driver disabled. Nothing has been successful.

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• Parse text file on click - and then display

  - by John R

  I am thinking of a methodology for rapid retrieval of code snippets. I imagine an HTML table with a setup like this: one two ... ten one oneTwo() oneTen() two twoOne() twoTen() ... ten tenOne() tenTwo() When a user clicks a function in this HTML table, a snippet of code is shown in another div tag or perhaps a popup window (I'm open to different solutions). I want to maintain only one PHP file named utitlities.php that contains a class called 'util'. This file & class will hold all the functions referenced in the above table (it is also used on various projects and is functional code). A key idea is that I do not want to update the HTML documentation everytime I write/update a new function in utilities.php. I should be able to click a function in the table and have PHP open the utilities file, parse out the apropriate function and display it in an HTML window. Questions: 1) I will be coding this in PHP and JavaScript but am wondering if similar scripts are available (for all or part) so I don't reinvent the wheel. 2) Quick & easy Ajax suggestions appreciated too (probably will use jquery, but am rusty). 3) Methodology for parsing out the functions from the utilities.php file (I'm not to good with regex).

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• Hack Fest at Devoxx

  - by Yolande Poirier

  On November 11th and 12th, Devoxx attendees will get the chance to build a Java embedded application onsite. During the Raspberry Pi & Leap Motion hands-on labs on Monday and Tuesday mornings, you will learn about Raspberry Pi development with Java embedded using Leap Motion and other sensors. The afternoons are hacking time on a project of your choice. You can get your inspiration from existing projects. You can also use their project source code and improve on already developed applications.  The goal is for you to create something fun and innovative in only a couple of days, no matter your experience in embedded systems.  We provide you with equipment like the Raspberry Pi, sensors, and Leap Motion. Thanks to Stephan Janssen for lending us 10 Leap Motions for the Hack Fest. Raspberry Pi and sensors are pre-configured. You will access the sensors via a web address. You can build a project alone if you want. We also give the opportunity to brainstorm ideas with other attendees and maybe build something more complex. You will get one-on-one help from top-notch coaches. Vinicius Senger has tons of experience with Java and the Raspberry. He runs Java embedded challenges and give training year round. Geert Bevin contributed to many open source projects and his latest venture is with the Leap Motion. Bruno Borges's expertise is in connecting backend logic with great interfaces. Yara Senger is a Java Champion and a great Java embedded mentor.    Don't miss this opportunity! This is your chance to transform your idea into a Raspberry Pi or a Leap Motion application.

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• Designs for outputting to a spreadsheet

  - by Austin Moore

  I'm working on a project where we are tasked to gather and output various data to a spreadsheet. We are having tons of problems with the file that holds the code to write the spreadsheet. The cell that the data belongs to is hardcoded, so anytime you need to add anything to the middle of the spreadsheet, you have to increment the location for all the fields after that in the code. There are random blank rows, to add padding between sections, and subsections within the sections, so there's no real pattern that we can replicate. Essentially, anytime we have to add or change anything to the spreadsheet it requires a many long and tedious hours. The code is all in this one large file, hacked together overtime in Perl. I've come up with a few OO solutions, but I'm not too familiar with OO programming in Perl and all my attempts at it haven't been great, so I've shied away from it so far. I've suggested we handle this section of the program with a more OO friendly language, but we can't apparently. I've also suggested that we scrap the entire spreadsheet idea, and just move to a webpage, but we can't do that either. We've been working on this project for a few months, and every time we have to change that file, we all dread it. I'm thinking it's time to start some refactoring. However, I don't even know what could make this file easier to work with. The way the output is formatted makes it so that it has to be somewhat hardcoded. I'm wondering if anyone has insight on any design patterns or techniques they have used to tackle a similar problem. I'm open to any ideas. Perl specific answers are welcome, but I am also interested in language-agnostic solutions.

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