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• Why’s (Poignant) Guide to Ruby

  - by Ben Griswold

  You’re familiar with O’Reilly’s brilliant Head First Series, right?  Great.  Then you know how every book begins with an explanation of the Head First teaching style and you know the teaching format which Kathy Sierra and Bert Bates developed is based on research in cognitive science, neurobiology and educational psychology and it’s all about making learning visual and conversational and attractive and emotional and it’s highly effective.  Anyway, it’s a great series and you should read every last one of the books. Moving on… I’ve been wanting to learn more about Ruby and Why’s (Poignant) Guide to Ruby has been on my reading list for a while and there was talk about cartoon foxes and other silliness and I figured Why’s (Poignant) Guide to Ruby probably takes the same unorthodox teaching style as the Head First books – and that’s great – so I read the book, in piecemeal, over the last couple of weeks and, well, I figured wrong. Now having read the book, here’s my take on Why’s (Poignant) Guide – it’s very creative and clever and it does a darn good job of introducing one to Ruby.  If you’re interested in Ruby or simply interested, the online book is worth your time.  If you’re thinking (like me) that cartoon foxes will be doing the teaching, that’s simple not the case.  However, the cartoons and the random stories in the sidebar may serve a purpose. Unlike the Head First books where images and captions are used to further explain the teachings, the cartoons and stories in Why’s Guide serve as intermission and offer your brain a brief moment of rest before the next Ruby concept is explained.  It’s not a bad strategy, but definitely not as effective as the Head First techniques.  

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• To sample or not to sample...

  - by [email protected]

  Ideally, we would know the exact answer to every question. How many people support presidential candidate A vs. B? How many people suffer from H1N1 in a given state? Does this batch of manufactured widgets have any defective parts? Knowing exact answers is expensive in terms of time and money and, in most cases, is impractical if not impossible. Consider asking every person in a region for their candidate preference, testing every person with flu symptoms for H1N1 (assuming every person reported when they had flu symptoms), or destructively testing widgets to determine if they are "good" (leaving no product to sell). Knowing exact answers, fortunately, isn't necessary or even useful in many situations. Understanding the direction of a trend or statistically significant results may be sufficient to answer the underlying question: who is likely to win the election, have we likely reached a critical threshold for flu, or is this batch of widgets good enough to ship? Statistics help us to answer these questions with a certain degree of confidence. This focuses on how we collect data. In data mining, we focus on the use of data, that is data that has already been collected. In some cases, we may have all the data (all purchases made by all customers), in others the data may have been collected using sampling (voters, their demographics and candidate choice). Building data mining models on all of your data can be expensive in terms of time and hardware resources. Consider a company with 40 million customers. Do we need to mine all 40 million customers to get useful data mining models? The quality of models built on all data may be no better than models built on a relatively small sample. Determining how much is a reasonable amount of data involves experimentation. When starting the model building process on large datasets, it is often more efficient to begin with a small sample, perhaps 1000 - 10,000 cases (records) depending on the algorithm, source data, and hardware. This allows you to see quickly what issues might arise with choice of algorithm, algorithm settings, data quality, and need for further data preparation. Instead of waiting for a model on a large dataset to build only to find that the results don't meet expectations, once you are satisfied with the results on the initial sample, you can  take a larger sample to see if model quality improves, and to get a sense of how the algorithm scales to the particular dataset. If model accuracy or quality continues to improve, consider increasing the sample size. Sampling in data mining is also used to produce a held-aside or test dataset for assessing classification and regression model accuracy. Here, we reserve some of the build data (data that includes known target values) to be used for an honest estimate of model error using data the model has not seen before. This sampling transformation is often called a split because the build data is split into two randomly selected sets, often with 60% of the records being used for model building and 40% for testing. Sampling must be performed with care, as it can adversely affect model quality and usability. Even a truly random sample doesn't guarantee that all values are represented in a given attribute. This is particularly troublesome when the attribute with omitted values is the target. A predictive model that has not seen any examples for a particular target value can never predict that target value! For other attributes, values may consist of a single value (a constant attribute) or all unique values (an identifier attribute), each of which may be excluded during mining. Values from categorical predictor attributes that didn't appear in the training data are not used when testing or scoring datasets. In subsequent posts, we'll talk about three sampling techniques using Oracle Database: simple random sampling without replacement, stratified sampling, and simple random sampling with replacement.

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• To the world, with love

  - by kaleidoscope

  kaleidoscope 1817, lit. "observer of beautiful forms," coined by its inventor, Sir David Brewster (1781-1868), from Gk. kalos "beautiful" + eidos "shape" (see -oid) + -scope, on model of telescope, etc. Figurative meaning "constantly changing pattern" is first attested 1819 in Lord Byron, whose publisher had sent him one. Let’s start by setting some context here. “We” are not a single blogger but a bunch of like minded people who will be contributing to this blog. We belong to a team led by some folks possessed by innovation, and this has rubbed on us in a good way. How it started It all started with initiative from Girish, A. A big thank you, goes to him. To get it straight from the horse’ mouth: What is it? - Everybody (as per the published schedule) post a small write-up (not more than say 5/6 lines) regarding any Azure related concept. - We shall consolidate all these mails (which would be 5/week) and quickly discuss/brain storm about it, end of the week i.e. on Fridays. What’s the benefit? - This should make our basic Azure concepts rock-solid. - As part of this exercise, we will have a very good collection of Azure FAQs. As the team grew stronger, so did the contributions and after almost 3 months of regular contributions and weekly discussions we thought of sharing the content with the world at large. Afterall we are IT folks and the big I in IT is there for a reason. :) The road ahead We will post the entire collection as time permits. Tagged by contributor. Going forward each contributor will post individually adding his/her specific tag. Get blogging!!

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• Sign of a Good Game

  - by Matt Christian

  (Warning: This post contains spoilers about SILENT HILL 2.  If you haven't played this game, you are dumb) What is one sign of a great game? One of the signs I realized recently is when a game continues to stun and surprise you years and years after you've played and beaten it.  As a major Silent Hill fan, I recently was reminded of Silent Hill 2 and even though see it as one of my favorite Silent Hill games, there are still things I'm learning about it that are neat little additions that add to the atmosphere (atmosphere also makes a great game!). For instance, when you start the game you are given a letter by your wife who has been deceased for years and years.  You are directed to Silent Hill and start treking through hell all by your lonesome (with the exception of a few psychos).  As you continue through the game, pieces of the letter begin to fade and disappear until eventually it is completely non-existent, thus implying the letter was never real and the letter was a delusion you created. Another example is the game's use of imagery the player knows about but might not notice at first.  For me, the most apparent of these was the dress you find near the start when you find the flashlight, which is the same dress you see Mary (your wife) wearing in the flashback sequences.  However, one thing I didn't know was that several deceased bodies you encounter laying around Silent Hill are actually the body of the main character (James) which invokes an idea you've seen that body before but can't pinpoint where... It's amazing to see a game go to such unique lengths to provide a psychological horror game.  Sure, all the dead bodies could be randomly modelled and the dress could be any ol' dress, but just the idea of your brain knowing something deep down but you can't pinpoint it is a really unique idea.  In my opinion, it ties less into subconscious and more into natural tendencies, it taps into the fear hidden inside us all.

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• Oracle Database 11.2.0.4 Certified with EBS on Microsoft Windows Server

  - by John Abraham

  As a follow up to to a previous announcement, Oracle Database 11g Release 2 (11.2.0.4) is now certified with Oracle E-Business Suite Release 11i and Release 12 on the following Microsoft Windows Server operating systems: Release 12.2 (12.2.3 and higher): Microsoft Windows x64 (64-bit) (2008 R2) Release 12.1 (12.1.1 and higher): Microsoft Windows Server (32-bit) (2003, 2008) Microsoft Windows x64 (64-bit) (20031, 20081, 2008 R22) Release 12.0 (12.0.4 and higher): Microsoft Windows Server (32-bit) (2003) Microsoft Windows x64 (64-bit) (2003, 2008, 2008 R2)1 Release 11i (11.5.10.2 + ATG PF.H RUP 6 and higher):: Microsoft Windows Server (32-bit) (2003, 20081) Microsoft Windows x64 (64-bit) (2003, 2008, 2008 R2)1 Notes: 1: This OS is a 'database tier only' or 'split tier configuration' platform where the application tier must be on a fully certified E-Business Suite platform. 2: This OS is a 'database tier only' platform for Release 11i. For 12.1.1 or higher, it is also supported on the application tier via the migration process outlined in My Oracle Support Document 1188535.1. This announcement for Oracle E-Business Suite 11i and R12 includes: Oracle Database 11gR2 version 11.2.0.4 Oracle Database 11gR2 version 11.2.0.4 Real Application Clusters (RAC) Oracle Database Vault 11gR2 version 11.2.0.4 Transparent Data Encryption (Column Encryption) using Oracle Database 11gR2 version 11.2.0.4 TDE Tablespace Encryption using Oracle Database 11gR2 version 11.2.0.4 Advanced Security Option (ASO)/Advanced Networking Option (ANO) with Oracle Database 11gR2 version 11.2.0.4 Export/Import Process for Oracle E-Business Suite Release 11i and Release 12 Database Instances Transportable Database and Transportable Tablespaces Data Migration Processes for Oracle E-Business Suite Release 11i and Release 12 Certification data in My Oracle Support (http://support.oracle.com) has been updated with this certification - please review the documents below for all requirements and additional details: Where can I find more information? MOS Document 881505.1 - Interoperability Notes - Oracle E-Business Suite Release 11i with Oracle Database 11g Release 2 (11.2.0) MOS Document 1058763.1 - Interoperability Notes - Oracle E-Business Suite Release 12 with Oracle Database 11g Release 2 (11.2.0) MOS Dcoument 1623879.1 - Interoperability Notes - Oracle E-Business Suite Release 12.2 with Oracle Database 11g Release 2 (11.2.0) MOS Document 1091086.1 - Integrating Oracle E-Business Suite Release 11i with Oracle Database Vault 11gR2 MOS Document 1091083.1 - Integrating Oracle E-Business Suite Release 12 with Oracle Database Vault 11gR2 MOS Document 216205.1 - Database Initialization Parameters for Oracle E-Business Suite 11i MOS Document 396009.1 - Database Initialization Parameters for Oracle Applications Release 12 MOS Document 823586.1 - Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 11i MOS Document 823587.1 - Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 MOS Document 946413.1 - Using Oracle Applications with a Split Configuration Database Tier on Oracle Release 11g Release 2 MOS Document 403294.1 - Using Transparent Data Encryption (TDE) Column Encryption with Oracle E-Business Suite Release 11i MOS Document 732764.1 - Using Transparent Data Encryption (TDE) Column Encryption with Oracle E-Business Suite Release 12 MOS Document 828223.1 - Using TDE Tablespace Encryption with Oracle E-Business Suite Release 11i MOS Document 828229.1 - Using TDE Tablespace Encryption with Oracle E-Business Suite Release 12 MOS Document 391248.1 - Encrypting Oracle E-Business Suite Release 11i Network Traffic using Advanced Security Option and Advanced Networking Option MOS Document 376700.1 - Enabling SSL in Oracle Application Release 12 MOS Document 732764.1 - Using Transparent Data Encryption (TDE) Column Encryption with Oracle E-Business Suite Release 12 MOS Document 557738.1 - Export/Import Process for Oracle E-Business Suite Release 11i Database Instances Using Oracle Database 11g Release 1 or 11g Release 2 MOS Document 741818.1 - Export/Import Process for Oracle E-Business Suite Release 12 Database Instances Using Oracle Database 11g Release 1 or 11g Release 2 MOS Document 1366265.1 - Using Transportable Tablespaces to Migrate Oracle Applications 11i Using Oracle Database 11g Release 2 MOS Document 1311487.1 - Using Transportable Tablespaces to Migrate Oracle E-Business Suite Release 12 Using Oracle Database 11g Release 2 MOS Document 729309.1 - Using Transportable Database to Migrate Oracle E-Business Suite Release 11i Using Oracle Database 10g Release 2 or 11g MOS Document 734763.1 - Using Transportable Database to Migrate Oracle E-Business Suite Release 12 Using Oracle Database 10g Release 2 or 11g MOS Document 1188535.1 - Migrating Oracle E-Business Suite R12 to Microsoft Windows Server 2008 R2 MOS Dcoument 1349240.1 - Database Preparation Guidelines for an Oracle E-Business Suite Release 12.2 Upgrade MOS Document 1594274.1 - Oracle E-Business Suite Release 12.2: Consolidated List of Patches and Technology Bug Fixes Please also review the platform-specific Oracle Database Installation Guides for operating system and other prerequisites.

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• Inside Red Gate - The Office

  - by Simon Cooper

  The vast majority of Red Gate is on the first and second floors (the second and third floors in US parlance) of an office building in Cambridge Business Park (here we are!). As you can see, the building is split into three sections; the two wings, and the section between them. As well as being organisationally separate, the four divisions are also split up in the office; each division has it's own floor and wing, so everyone in the division is working together in the same area (.NET and DBA on the left, SQL Tools and New Business on the right). The non-divisional parts of the business share wings with the smaller divisions, again keeping each group together. The canteen One of the downsides of divisionalisation is that communication between people in different decisions is greatly reduced. This is where the canteen (aka the SQL Servery) comes in. Occupying most of the central section on the first floor, the canteen provides free cooked lunch every day, and is where everyone in the company gathers for lunch. The idea is to encourage communication between the divisions; having lunch with people in a different division you wouldn't otherwise talk to helps people keep track of what's going on elsewhere in the company. (I'm still amazed at how the canteen staff provide a wide range of superbly cooked food for over 200 people out of a kitchen in which, if you were to swing a cat, it would get severe head injuries.). There's also table tennis and table football tables that anyone can use, provided you can grab them when they're free! Office layout Cubicles are practically unheard of in the UK, and no one, including the CEOs, has separate offices. The entire office is open-plan, as you can see in this youtube video from when we first moved in (although all the empty desks are now full!). Neil & Simon, instead of having dedicated offices, move between the different divisions every few months to keep up to date with what's going on around the company; sitting with a division gives you a much better overall impression of how the division's doing than written status reports from the division heads. There's also the usual plethora of meeting rooms scattered around the place; when we first moved in in 2009 we had a competition to name them all. We've got Afoxalypse A & B, Seagulls A & B, Traffic Jam, Thinking Hats, Camelids A & B, Horses, etc. All the meeting rooms have pictures on the walls corresponding to their theme, which adds a nice bit of individuality to otherwise fairly drab meeting rooms. Generally, any meeting room can be booked by anyone at any time, although some groups have priority in certain rooms (Camelids B is used a lot for UX testing, the Interview Room is used for, well, interviews). And, as you can see from the video, each area has various pictures, post-its, notes, signs, on the walls to try and stop it being a dull office space. Yes, it's still an office, but it's designed to be as interesting and as individual as possible.

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• Why does Amazon release private keys instead of public keys?

  - by S37H

  My brain is wrapped around the axle on public and private keys. When you create a cloud server (instance) on Amazon's EC2 service and then want to connect to it via SSH, Amazon requires you to download private a key to make the connection. Doesn't the idea behind public/private key suggest that Amazon should be require you to download a public one? Further, if I set up an SFTP server for a customer to use, should I be installing their key on the server or giving them a key from the server? In either case, should it be a public or private key?

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• P90X or How I Stopped Worrying and Love Exercise

  - by Matt Christian

  Last Wednesday, after many UPS delivery failures, I received P90X in the mail.  P90X is a series of DVD's and a nutrition guide you use to shed pounds and gain muscle.  Odds are you've seen the infomercial on TV at some point if you watch a little tube now and again.  I started last Thursday and am still standing to tell this tale. At it's core, P90X is a 12 DVD set of exercise videos.  Each video is comprised of a different workout routine that typically last around an hour (some up to 1 1/2 hours).  Every day you are supposed to do one of the workouts which are different every day (sometimes you may repeat a shorter 6 min workout dedicated to abs twice a week).  There are different 'programs' focused on different areas, for weight loss you do the Lean Program, standard weight loss and muscle gain do the Regular Program, and for those hardcore health-nuts, the Insane Program (which consists of 2 - 1 hour long exercises per day).  Each Program has a different set of workouts per week which you repeat for 3 weeks, followed by a 'Relaxation Week' which is essentially a slightly different order.  After the month of workouts is over, you've finished 1 phase out of 3.  P90X takes 90 days, split into 3 Phases (1 phase per month).  Every phase has a different workout order which is also focused on different areas (Weight Loss, Muscle Gain, etc...)  With the DVD's you also get a small glossy book of about 100 pages detailing the different workouts and the different programs as well as a sample workout to see if you're even ready to start P90X. The second part of P90X, which can also be considered the 'core' (actually the other half of the core) is the nutrition guide that is included.  The Nutrition Guide is a book similar to the one that defines the exercises (about 100 glossy pages) though it details foods you should eat, the amounts, and a number of healthy (and tasty!) recipes.  The guide is split up into 3 phases as well, promoting high protein and low carb/dairy at during Phase 1, and levelling off through to Phase 3 where you have a relatively balanced amount of every food group. So after 1 week where am I?  I've stuck quite close to the nutrition guide (there isn't 'diet food' in here people, it's ACTUALLY food) and done my exercise every day.  I think a lot of the first week is getting into the whole idea and learning the moves performed on the DVD.  Have I lost weight?  No.  Do I feel some definition already starting to poke out?  Absolutely (no pun intended). Tony Horton (the 51-year old hulk that runs the whole thing) is very fun to listen and work along with and the 'diet' really isn't too hard to follow unless all you eat is carbs.  I've tried the gym thing and could not get motivated enough to continue going.  P90X is the first time I've ached from a workout, BEFORE starting my next workout.  For anyone interested, Google 'P90X' or 'BeachBody' to find out more information about this awesome program!

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• UX Design Principles Pluralsight course review

  - by pluginbaby

  I've just finished the "Creating User Experiences: Fundamental Design Principles" course on Pluralsight, I am glad I took it, and here is why you should. The course is held by Billy Hollis, an internationally known author and speaker focused on user experience design. It was published in May 2012, so it is quite fresh (You’ll hear some reference to XAML, even if the content is not focused on any particular technology). I think what I liked the most about this course is the fact that Billy is not just imposing design ideas and pushing them in your throat (which would be too confronting for us developers, even if he was right), he spends a fair share amount of time explaining each topics, and illustrate them with great metaphors. If you are a minimum open minded you should get great value out of this course. Billy makes you think outside the box, he encourages you to use your right side brain, and understand design principles by simply looking at what’s around us (physical objects, nature, …). During the course he refers several time to "don't make me think" a book on UX design, which is about giving confidence to users, by making it easier for them to achieve their goals when using your app. Billy thinks that every developer can participate in elaborating good design when building software, not only designers should be involved. Get away of the easy path "let's build functional stuff for now and we will hire a designer later if we have time and budget". The course is also live and interactive as the author suggests that you do some live exercises during each module. He actually makes you realize and understand by yourself the need for change. We’re in a new era of software and devices, where grids and menus aren't enough. You can’t remain satisfied by just making things possible, you need to make them easier for your users. Understanding some fundamental design principles will help. This course can definitely be followed by any developers who wants to improve user experience of software they are working on, and I definitely recommend it.

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• Apache mod_rewrite for multiple domains to SSL

  - by Aaron Vegh

  Hi there, I'm running a web service that will allow people to create their own "instances" of my application, running under their own domain. These people will create an A record to forward a subdomain of their main domain to my server. The problem is that my server runs everything under SSL. So in my configuration for port 80, I have the following: <VirtualHost *:80> ServerName mydomain.com ServerAlias www.mydomain.com RewriteEngine On RewriteCond %{HTTPS} !=on RewriteRule /(.*) https://mydomain.com/$1 [R=301] </VirtualHost> This has worked well to forward all requests from the http: to https: domain. But as I said, I now need to let any domain automatically forward to the secure version of itself. Is there a rewrite rule that will let me take the incoming domain and rewrite it to the https version of same? So that the following matches would occur: http://some.otherdomain.com -> https://some.otherdomain.com http://evenanotherdomain.com -> https://evenanotherdomain.com Thanks for your help! Apache mod_rewrite makes my brain hurt. Aaron.

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• What is Openflow?

  - by jmreicha

  Okay, I've been thinking about this a lot recently but I think I may be more confused now than I was originally when I started. I can't find anything about Openflow that helps me understand what it is. None of the websites I have found have given a solid definition of what Openflow really is and what it does, at least if they do I can't comprehend it. Is there an easy way to explain this standard so my small brain can understand it? I understand that Openflow is a way to abstract networking away from switches and can be managed from software, etc etc. I feel like it might be a little easier to grasp if I had exmaples of application. But so far searching has failed me. What is Openflow? How can it help me? What does it offer?

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• Everything Windows Explorer does hangs up t some time or another

  - by William Barnes

  Yes this is a duplicate of something I have tried to ask in the past. I think I am posting wrong since my first question was deleted OK I ran SCANNOW nd it came back with no problems. I booted in Safe mode and windows evplorer worked OK. I am not sure what that proves. I also ran AUTRUNS and disabled everything that you said, but it still dies. I read someplace that it could be a service program, but I can't find that link anymore. Something about shutting off all non-windows SP's and then start adding back SP's until it quits. The problem is that sometimes it will work, but most of the time it does not. Makes saving or retrieving anything impossible. SAVEAS hangs up, my Garmin Map updater hangs up etc.. I was having this problem before installing Garmin so I am reasonably sure it is not the problem HELP PLEASE, I don't have many brain cells left and can't afford to lose more.

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• Laptop battery: is voltage really important to respect?

  - by Marc-Andre R.

  I got an Acer Aspire 5100 and I just bought a new battery (after the stock battery just died yesterday). But I saw something after buying and I'm wondering whether it's really important or not. My stock battery was a 6-cell 4000mah 11.1v and the new battery is an 8-cell 4800mah 14.8v . I know that 8-cell and 4800mah is okay, but what about the 14.8v instead of 11.1v? The battery description says it's compatible with my laptop model (AS5100, model BL51), but the voltage difference makes me wonder. Will the laptop only take what it needs? Or will it be getting 14.8v straight in the brain? I know that my wall plug claims to output 19v, so logically I'm thinking a higher voltage battery shouldn't be a problem. Am I correct in thinking this? Thanks in advance for your answers!

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• Gnome Shell Theme Problem on Ubuntu 11.10

  - by Khurram Majeed

  I am trying to install ANewStart GNOME shell themes on Ubuntu 11.10. I have installed gnome shell extension for themes: sudo add-apt-repository ppa:webupd8team/gnome3 sudo apt-get update sudo apt-get install gnome-shell-extensions-user-theme I got the instructions from here ANewStart GNOME Shell Theme + AwOken Icons Theme = Pure Art. But when I go to "Advanced Settings - Shell Extensions" its empty... There is nothing. Also there is a orange triangle sign next to Shell Theme drop down in Advanced Settings - Theme. When I try to run the gnome-tweak-tool from terminal I get following error: imresh@imresh-laptop:~$ gnome-tweak-tool CRITICAL: Error parsing schema org.gnome.shell (/usr/share/glib-2.0/schemas/org.gnome.shell.gschema.xml) Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/gtweak/gsettings.py", line 45, in __init__ summary = key.getElementsByTagName("summary")[0].childNodes[0].data IndexError: list index out of range WARNING : Error detecting shell Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_shell_extensions.py", line 145, in __init__ shell = GnomeShellFactory().get_shell() File "/usr/lib/python2.7/dist-packages/gtweak/utils.py", line 38, in getinstance instances[cls] = cls() File "/usr/lib/python2.7/dist-packages/gtweak/gshellwrapper.py", line 123, in __init__ v = map(int,proxy.version.split(".")) File "/usr/lib/python2.7/dist-packages/gtweak/gshellwrapper.py", line 46, in version return json.loads(self.execute_js('const Config = imports.misc.config; Config.PACKAGE_VERSION')) File "/usr/lib/python2.7/dist-packages/gtweak/gshellwrapper.py", line 39, in execute_js result, output = self.proxy.Eval('(s)', js) File "/usr/lib/python2.7/dist-packages/gi/overrides/Gio.py", line 148, in __call__ kwargs.get('flags', 0), kwargs.get('timeout', -1), None) File "/usr/lib/python2.7/dist-packages/gi/types.py", line 43, in function return info.invoke(*args, **kwargs) GError: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Shell was not provided by any .service files WARNING : Shell not running Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_shell.py", line 57, in __init__ self._shell = GnomeShellFactory().get_shell() File "/usr/lib/python2.7/dist-packages/gtweak/utils.py", line 38, in getinstance instances[cls] = cls() File "/usr/lib/python2.7/dist-packages/gtweak/gshellwrapper.py", line 123, in __init__ v = map(int,proxy.version.split(".")) File "/usr/lib/python2.7/dist-packages/gtweak/gshellwrapper.py", line 46, in version return json.loads(self.execute_js('const Config = imports.misc.config; Config.PACKAGE_VERSION')) File "/usr/lib/python2.7/dist-packages/gtweak/gshellwrapper.py", line 39, in execute_js result, output = self.proxy.Eval('(s)', js) File "/usr/lib/python2.7/dist-packages/gi/overrides/Gio.py", line 148, in __call__ kwargs.get('flags', 0), kwargs.get('timeout', -1), None) File "/usr/lib/python2.7/dist-packages/gi/types.py", line 43, in function return info.invoke(*args, **kwargs) GError: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Shell was not provided by any .service files WARNING : Could not list shell extensions Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_shell.py", line 62, in __init__ extensions = self._shell.list_extensions() AttributeError: ShellThemeTweak instance has no attribute '_shell' (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed (gnome-tweak-tool:5323): Gtk-CRITICAL **: gtk_widget_get_preferred_height_for_width: assertion `width >= 0' failed Please help me in fixing this. I have also restarted the computer many times it does not make a difference.

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• How to properly deny Railo directory access through Apache

  - by Sn3akyP3t3

  I've been battle tested on this and failed to achieve my goal which is to deny all access to all directories except the Public directory and only allow access to all all other directories with specific IP addresses. To get Railo+Apache+Tomcat installed I pretty much followed this script: https://github.com/talltroym/Railo-Ubuntu-Installer-Script then verified settings with this tutorial: http://blog.nictunney.com/2012/03/railo-tomcat-and-apache-on-amazon-ec2.html From the installation script these mods are enabled: sudo a2enmod ssl sudo a2enmod proxy sudo a2enmod proxy_http sudo a2enmod rewrite sudo a2ensite default-ssl Outside of the script I copied the sites-available to sites-enabled then reloaded Apache. I have a directory created for Railo cmfl located at /var/www/Railo/ Navigating the browser to http ://Server_IP_Address/Railo forces ssl and relocates to https ://Server_IP_Address/Railo which shows off index.cfm. Not providing index.cfm and omitting https indicates that the DirectoryIndex directive and RewriteCond of Apache appears to be working for the sites-enabled VirtualHost. The problem I'm encountering is that I cannot seem to deny access to all directories except Public. My directory structure is rather simple and looks like this: Railo error Public NotPublic Sandbox These are my sites-enabled configurations: <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /var/www #Default Deny All to prevent walking backwards in file system Alias /Railo/ "/var/www/Railo/" <Directory ~ ".*/Railo/(?!Public).*"> Order Deny,Allow Deny from All </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> DirectoryIndex index.cfm index.cfml default.cfm default.cfml index.htm index.html index.cfc RewriteEngine on RewriteCond %{SERVER_PORT} !^443$ RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [L,R] </VirtualHost> and <IfModule mod_ssl.c> <VirtualHost _default_:443> ServerAdmin webmaster@localhost DocumentRoot /var/www Alias /Railo/ "/var/www/Railo/" <Directory ~ "/var/www/Railo/(?!Public).*"> Order Deny,Allow Deny from All </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> # SSL Engine Switch: # Enable/Disable SSL for this virtual host. SSLEngine on # A self-signed (snakeoil) certificate can be created by installing # the ssl-cert package. See # /usr/share/doc/apache2.2-common/README.Debian.gz for more info. # If both key and certificate are stored in the same file, only the # SSLCertificateFile directive is needed. SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key # Server Certificate Chain: # Point SSLCertificateChainFile at a file containing the # concatenation of PEM encoded CA certificates which form the # certificate chain for the server certificate. Alternatively # the referenced file can be the same as SSLCertificateFile # when the CA certificates are directly appended to the server # certificate for convinience. #SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt # Certificate Authority (CA): # Set the CA certificate verification path where to find CA # certificates for client authentication or alternatively one # huge file containing all of them (file must be PEM encoded) # Note: Inside SSLCACertificatePath you need hash symlinks # to point to the certificate files. Use the provided # Makefile to update the hash symlinks after changes. #SSLCACertificatePath /etc/ssl/certs/ #SSLCACertificateFile /etc/apache2/ssl.crt/ca-bundle.crt # Certificate Revocation Lists (CRL): # Set the CA revocation path where to find CA CRLs for client # authentication or alternatively one huge file containing all # of them (file must be PEM encoded) # Note: Inside SSLCARevocationPath you need hash symlinks # to point to the certificate files. Use the provided # Makefile to update the hash symlinks after changes. #SSLCARevocationPath /etc/apache2/ssl.crl/ #SSLCARevocationFile /etc/apache2/ssl.crl/ca-bundle.crl # Client Authentication (Type): # Client certificate verification type and depth. Types are # none, optional, require and optional_no_ca. Depth is a # number which specifies how deeply to verify the certificate # issuer chain before deciding the certificate is not valid. #SSLVerifyClient require #SSLVerifyDepth 10 # Access Control: # With SSLRequire you can do per-directory access control based # on arbitrary complex boolean expressions containing server # variable checks and other lookup directives. The syntax is a # mixture between C and Perl. See the mod_ssl documentation # for more details. #<Location /> #SSLRequire ( %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \ # and %{SSL_CLIENT_S_DN_O} eq "Snake Oil, Ltd." \ # and %{SSL_CLIENT_S_DN_OU} in {"Staff", "CA", "Dev"} \ # and %{TIME_WDAY} >= 1 and %{TIME_WDAY} <= 5 \ # and %{TIME_HOUR} >= 8 and %{TIME_HOUR} <= 20 ) \ # or %{REMOTE_ADDR} =~ m/^192\.76\.162\.[0-9]+$/ #</Location> # SSL Engine Options: # Set various options for the SSL engine. # o FakeBasicAuth: # Translate the client X.509 into a Basic Authorisation. This means that # the standard Auth/DBMAuth methods can be used for access control. The # user name is the `one line' version of the client's X.509 certificate. # Note that no password is obtained from the user. Every entry in the user # file needs this password: `xxj31ZMTZzkVA'. # o ExportCertData: # This exports two additional environment variables: SSL_CLIENT_CERT and # SSL_SERVER_CERT. These contain the PEM-encoded certificates of the # server (always existing) and the client (only existing when client # authentication is used). This can be used to import the certificates # into CGI scripts. # o StdEnvVars: # This exports the standard SSL/TLS related `SSL_*' environment variables. # Per default this exportation is switched off for performance reasons, # because the extraction step is an expensive operation and is usually # useless for serving static content. So one usually enables the # exportation for CGI and SSI requests only. # o StrictRequire: # This denies access when "SSLRequireSSL" or "SSLRequire" applied even # under a "Satisfy any" situation, i.e. when it applies access is denied # and no other module can change it. # o OptRenegotiate: # This enables optimized SSL connection renegotiation handling when SSL # directives are used in per-directory context. #SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire <FilesMatch "\.(cgi|shtml|phtml|php)$"> SSLOptions +StdEnvVars </FilesMatch> <Directory /usr/lib/cgi-bin> SSLOptions +StdEnvVars </Directory> # SSL Protocol Adjustments: # The safe and default but still SSL/TLS standard compliant shutdown # approach is that mod_ssl sends the close notify alert but doesn't wait for # the close notify alert from client. When you need a different shutdown # approach you can use one of the following variables: # o ssl-unclean-shutdown: # This forces an unclean shutdown when the connection is closed, i.e. no # SSL close notify alert is send or allowed to received. This violates # the SSL/TLS standard but is needed for some brain-dead browsers. Use # this when you receive I/O errors because of the standard approach where # mod_ssl sends the close notify alert. # o ssl-accurate-shutdown: # This forces an accurate shutdown when the connection is closed, i.e. a # SSL close notify alert is send and mod_ssl waits for the close notify # alert of the client. This is 100% SSL/TLS standard compliant, but in # practice often causes hanging connections with brain-dead browsers. Use # this only for browsers where you know that their SSL implementation # works correctly. # Notice: Most problems of broken clients are also related to the HTTP # keep-alive facility, so you usually additionally want to disable # keep-alive for those clients, too. Use variable "nokeepalive" for this. # Similarly, one has to force some clients to use HTTP/1.0 to workaround # their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and # "force-response-1.0" for this. BrowserMatch "MSIE [2-6]" \ nokeepalive ssl-unclean-shutdown \ downgrade-1.0 force-response-1.0 # MSIE 7 and newer should be able to use keepalive BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown DirectoryIndex index.cfm index.cfml default.cfm default.cfml index.htm index.html #Proxy .cfm and cfc requests to Railo ProxyPassMatch ^/(.+.cf[cm])(/.*)?$ http://127.0.0.1:8888/$1 ProxyPassReverse / http://127.0.0.1:8888/ #Deny access to admin except for local clients <Location /railo-context/admin/> Order deny,allow Deny from all # Allow from <Omitted> # Allow from <Omitted> Allow from 127.0.0.1 </Location> </VirtualHost> </IfModule> The apache2.conf includes the following: # Include the virtual host configurations: Include sites-enabled/ <IfModule !mod_jk.c> LoadModule jk_module /usr/lib/apache2/modules/mod_jk.so </IfModule> <IfModule mod_jk.c> JkMount /*.cfm ajp13 JkMount /*.cfc ajp13 JkMount /*.do ajp13 JkMount /*.jsp ajp13 JkMount /*.cfchart ajp13 JkMount /*.cfm/* ajp13 JkMount /*.cfml/* ajp13 # Flex Gateway Mappings # JkMount /flex2gateway/* ajp13 # JkMount /flashservices/gateway/* ajp13 # JkMount /messagebroker/* ajp13 JkMountCopy all JkLogFile /var/log/apache2/mod_jk.log </IfModule> I believe I understand most of this except the jk_module inclusion which I've noticed has an error that shows up in the logs that I can't sort out: [warn] No JkShmFile defined in httpd.conf. Using default /etc/apache2/logs/jk-runtime-status I've checked my Regular expression against the paths of the directories with RegexBuddy just to be sure that I wasn't correct. The problem doesn't appear to be Regex related although I may have something incorrect in the Directory directive. The Location directive seems to be working correctly for blocking out Railo admin site access.

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• How do I restore my system from a "Backup and Restore Center" backup?

  - by Daniel R Hicks

  The Windows (Vista) documentation and available online info is comprehensively vague. If I have a moderately brain dead system and want to restore it, and I have a "Backup and Restore Center" backup whose "delta" is not quite a week old (but with a "full backup" behind it), what steps do I go through to recover my box back to that backup point? It's totally unclear whether simply doing "restore all" from the (advanced) "Center" is sufficient, or do I need to first take the box back to day zero with the system restore DVD, et al? (Just editing this to get my correct ID associated with it.)

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• Great Debugging skills weak problem solving

  - by Mahmoud

  For the 5 years I worked for various companies, I worked in large software like computer vision kits, embedded, games. I found myself very good at debuggins skills, I've even found and fixed bugs in frameworks and I solved them. The problem is that I'm very weak at problem solving. I got interview with Qualcomm, and they said you're fine at software, but you have a limited problem solving, I also had the same results with Google. I'm very bad at solving puzzles and brain teasers. During the interviews I solve all of the software related problems on the blackboard, but when I went to the GM and face math problems and probabilities, I struggle. How can I improve my problem solving skills? Edit Some of the problems: A cake that is cut from anywhere and needs just one cut to halved in equal. I told him cut it horizontally, he said No, consider it as a 2D Problem!. Consider a concenteric 3 circles, each one can get a color, but not matched with the other circle, how many blobs you can make out of those circles ? this was with the GM ( Augmented Reality SDK) Consider a train, an infinite one, and you looked at the window, and there are two cars, one big, and one small, what is the probability of having only a big car, I said 50%, he said, what if that two cars you dont know their length, and you want to get the probability of getting the biggest one, I struggled, didn't solve it... I was really exahusted after long day of interviews prob of having a number divisible by 5 in numbers from 1 to 100.. struggled!! All coding questions I solved them like reverse a string, detect a cycle in a linked list,..etc.

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• Are books on programming hard to understand?

  - by DarkEnergy

  I've been reading books that are extremely daunting. Accelerated C++ is by far one of the books -- that I haven't finished. I plan too, but that's another story. When reading a programming book, do you find yourself re reading a lot of the paragraphs? Sometimes it takes me like an hour to read 20 pages out of a book. Sometimes they become so daunting that it takes me all day to finish a single chapter. I think having these as e-books makes them even harder to read sometimes, since I'm so used to looking down to read a book or just looking at tangible paper. IDK, just wanting to know if reading these books becomes extremely hard, and do you find yourself rereading the most simplest paragraphs 2-3 times just to get the meaning of it because the previous paragraph left your brain hurting? http://www.it-career-coach.net/2007/03/04/are-computer-programming-books-hard-to-study/ here is a article i read on something similar to this. edit sometimes I find myself reading a whole page... then I look up and say 'wth did I just read'... I could finish a chapter in 30 minutes to an hour and feel this way too...

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• AceCypher is an Addictive Cypher Slide Puzzle Game

  - by Akemi Iwaya

  Are you ready for a game that will test your logical thinking skills while providing hours of fun? Then you may want to have a look at this awesome cypher slide puzzler! AceCypher is great puzzle game for those times when you only have a few minutes to play or want a fun way to pass the time while relaxing. The overall premise and style of game play for AceCypher is simple. You move individual rows (left, right) or columns (up, down) one space at a time in order to shift the positions of numbers on the game board through ’round-a-bout’ trading. The goal is to make the four numbers in the red square match the code shown in the upper right corner (including positions). Sounds simple so far, right? But the challenge comes from the random boards you will be given to work with…some will not be too hard to solve while others will tax your brain (and patience!) quite well.     

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• Cannot see http (apache) server outside home network

  - by user165155

  Ive been racking my brain with this all evening. Power went out with a tstorm today, started back up my server... running apache and a team speak server on it. TS is great, cant see my web page outside my network! Firewall is disabled on the pc running it (centos btw), apache is running and working. correct ports are forwarded on my router (my isp blocks port 80). Ive tried changing ports, pretty much everything i can think of. httpd.conf is pointing to the correct addy and port, and my domain is pointing to the correct external ip. Im at a loss, any ideas out there?

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• SQL SERVER – Clustered Index and Primary Key – Contest Win Joes 2 Pros Combo (USD 198) – Day 3 of 5

  - by pinaldave

  August 2011 we ran a contest where every day we give away one book for an entire month. The contest had extreme success. Lots of people participated and lots of give away. I have received lots of questions if we are doing something similar this month. Absolutely, instead of running a contest a month long we are doing something more interesting. We are giving away USD 198 worth gift every day for this week. We are giving away Joes 2 Pros 5 Volumes (BOOK) SQL 2008 Development Certification Training Kit every day. One copy in India and One in USA. Total 2 of the giveaway (worth USD 198). All the gifts are sponsored from the Koenig Training Solution and Joes 2 Pros. The books are available here Amazon | Flipkart | Indiaplaza How to Win: Read the Question Read the Hints Answer the Quiz in Contact Form in following format Question Answer Name of the country (The contest is open for USA and India residents only) 2 Winners will be randomly selected announced on August 20th. Question of the Day: Which of the following datatype is usually NOT the best choice for Primary Key and Clustered Index? a) INT b) BIGINT c) GUID d) SMALLINT Query Hints: BIG HINT POST The clustered index is the placement order of a table’s records in memory pages. When you insert new records, then each record will be inserted into the memory page in the order it belongs. In the figure below we see another new record (Major Disarray) being inserted, in sequence, between Jonny and Rick. Since there is no room in this memory page, some records will need to shift around. The page split occurs when Irenes’ record moves to the second page. Page splits are considered very bad for performance, and there are a number of techniques to reduce, or even eliminate, the risk of page splits. You can create a clustered index on the table on any field you choose. Sometime SQL will create a clustered index for you. Often times the field having the Primary Key makes a great candidate for the clustered index. Additional Hints: I have previously discussed various concepts from SQL Server Joes 2 Pros Volume 3. SQL Joes 2 Pros Development Series – All about SQL Statistics SQL Joes 2 Pros Development Series – Introduction to Page Split SQL Joes 2 Pros Development Series – The Clustered Index – Simple Understanding SQL Joes 2 Pros Development Series – Geography Data Type – Calculating Distance Between Two Points on the Earth SQL Joes 2 Pros Development Series – Sparse Data and Space Used by Sparse Data SQL Joes 2 Pros Development Series – System and Time Data Types SQL Joes 2 Pros Development Series – Data Row Space Usage and NULL Storage Next Step: Answer the Quiz in Contact Form in following format Question Answer Name of the country (The contest is open for USA and India) Bonus Winner Leave a comment with your favorite article from the “additional hints” section and you may be eligible for surprise gift. There is no country restriction for this Bonus Contest. Do mention why you liked it any particular blog post and I will announce the winner of the same along with the main contest. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Joes 2 Pros, PostADay, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Release 17 is here!

  - by Cheryl

  Our training development team has been busy updating courses to keep pace with the new release of CRM On Demand. Release 17 is here! And I heard recently that it's one of our biggest releases ever. A lot of new features and functionality for you to take advantage of - too much for me to cover in this blog post. But, I thought I'd tell you about a few of my favorites - be sure to take a look at the What's New in Release 17 recording to see the full list, though...because I'm only going to touch on a few. Create your own look - okay, I'm starting with the fun stuff. But, there is a new customizable themes feature so that you can change the look of the application; colors, logo, the shape of the tabs. And it's really easy. There's also a whole new library of ready-made themes for you to pick from if you just want to go with one of those. Use this new feature to match the look of your company logo and color scheme. Or blaze new trails. You can create the look for the whole company, or a different look for each CRM On Demand role. This might especially come in handy if you're using the Partner Relationship Management (PRM) capabilities of CRM On Demand - you can create themes for your partner-facing roles to provide branded partner portals. Speaking of PRM - there are enhancements in this release to help companies better manage their partner relationships. A new Deal Registration object, which is separate from the Opportunity record, and better Special Pricing Request and Marketing Development Fund Request processes, give a lot more flexibility in how companies can build and manage their relationships with partners. Some new options for Forecasts in in Release 17, too. You can now have more than one type of forecast generated each forecast period. For example, you might need to see a forecast of the total opportunity revenue for your sales team, as well as on that breaks down revenue by product. The forecast definition now lets you do that. Other options allow you to make submitting forecasts easier, split opportunity revenue across the team and forecast that split appropriately. And - look for the new Forecast subject area in Answers, for building custom forecast reports. Ever wish you could use Workflow Rules to automatically reassign leads if they haven't been followed up on...or to email a manager if the status of a service request isn't changed after a specified period of time? Then check out the new Wait action for workflows. I think you'll be happy. Ok, enough for today. There is a lot to Release 17 that I didn't mention - a lot has been added for our Life Science industry edition, some new data visibility options, a new Data Loader tool, and more. Stay tuned for more blog posts about these and other Release 17 features in the coming weeks. In the meantime, don't forget about all of the resources we have for you to learn more (see my Learning About Release 17 blog post for details).

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• Interfaces, Adapters, exposing business objects via WCF design

  - by Onam

  I know there have been countless discussions about this but I think this question is slightly different and may perhaps prompt a heated discussion (lets keep it friendly). The scene: I am developing a system as a means for me to learn various concepts and I came across a predicament which my brain is conflicting with. That is whether to keep my interfaces in a separate class library or should they live side by side my business objects. I want to expose certain objects via WCF, however refuse to expose them in its entirety. I am sure most will agree exposing properties such as IDs and other properties is not good practice but also I don't want to have my business objects decorated with attributes. The question: Essentially, I'll be having a separate interface for each of my objects that will essentially be exposed to the outside world (could end up being quite a few) so does it make sense to create a separate class library for interfaces? This also brings up the question of whether adapters should live in a separate class library too as ideally I want a mechanism from transferring from one object to the other and vice versa?

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• How to filter a mysql database with user input on a website and then spit the filtered table back to the website? [migrated]

  - by Luke

  I've been researching this on google for literally 3 weeks, racking my brain and still not quite finding anything. I can't believe this is so elusive. (I'm a complete beginner so if my terminology sounds stupid then that's why.) I have a database in mysql/phpmyadmin on my web host. I'm trying to create a front end that will allow a user to specify criteria for querying the database in a way that they don't have to know sql, basically just combo boxes and checkboxes on a form. Then have this form 'submit' a query to the database, and show the filtered tables. This is how the SQL looks in Microsoft Access: PARAMETERS TEXTINPUT1 Text ( 255 ), NUMBERINPUT1 IEEEDouble; // pops up a list of parameters for the user to input SELECT DISTINCT Table1.Column1, Table1.Column2, Table1.Column3,* // selects only the unique rows in these three columns FROM Table1 // the table where this query is happening WHERE (((Table1.Column1) Like TEXTINPUT1] AND ((Table1.Column2)<=[NUMBERINPUT1] AND ((Table1.Column3)>=[NUMBERINPUT1])); // the criteria for the filter, it's comparing the user input parameters to the data in the rows and only selecting matches according to the equal sign, or greater than + equal sign, or less than + equal sign What I don't get: WHAT IN THE WORLD AM I SUPPOSED TO USE (that isn't totally hard)!? I've tried google fusion tables - doesn't filter right with numerical data or empty cells in rows, can't relate tables I've tried DataTables.net, can't filter right with numerical data and can't use SQL without a bunch of indepth knowledge, not even sure it can if you have that.. I've looked into using jQuery with google spreadsheets, doesn't work at all either I have no idea how I'm supposed to build a front end with my database. Every place that looks promising (like zohocreator) is asking for money, and is far too simplified to be able to do the LIKE criteria or SELECT DISTINCT stuff.

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• #altnetseattle &ndash; Collaboration, Why is it so hard!

  - by GeekAgilistMercenary

  The session convened and we began a discussion about why collaboration is so hard. To work together in software better us engineers have to overcome traditional software approaches (silos of work) and the human element of tending to go off in a corner to work through an issue. It was agreed upon that software engineers are jack asses of jack assery. Breaking down the stoic & silent types by presenting a continuous enthusiasm until the stoic and silent types break down and open up to the group.  Knowing it is ok to ask the dumb question or work through basic things once in a while. Non-work interactions are pivotal to work related collaboration. Collaboration is mostly autonomous of process (i.e. Agile or Waterfall) Latency time should be minimal in the feedback loop for software development. Collaboration is enhanced by Agile Ideals, and things like Scrum or Lean Process. Agile is not a process, Lean and Scrum are process.  Agile is an ideal. Lean, Agile, Scrum, Waterfall, Six Sigma, CMMI, oh dear. . . Great session.  Off to the next session and more brain crunching. . . weeeeeeee!

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