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• Being rocked...

  - by ZacHarlan

  After almost four and half years, I finally escaped from the world of telemarketing.     I'm now at a place that writes really good code, values testing, does routine code reviews, collaborates with each other so continuously and effectively somebody should make a documentary about it!   Today alone, I had two really smart and well respected developers go line by line through my code and show me how to make it better.  Seriously, people pay really good money for something like this and they don't get near the quality of feedback as I got!     +1 for me finally getting to a point in my career where i get to work with some of the best of the best in the software world!   I've been rocked by the fact that places like this actually exist.     I've been Rocked by the sheer size, complexity and simplicity of our website.     Most importantly I've been ROCKED by the fact that this many smart people check their egos at the door, gel together and look for ways to make software better than how they found it.  This is how to grow a business with tech... hire great people and watch them go!   Seriously, bravo.

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• Google Analytics Social Tracking implementation. Is Google's example correct?

  - by s_a

  The current Google Analytics help page on Social tracking (developers.google.com/analytics/devguides/collection/gajs/gaTrackingSocial?hl=es-419) links to this page with an example of the implementation: http://analytics-api-samples.googlecode.com/svn/trunk/src/tracking/javascript/v5/social/facebook_js_async.html I've followed the example carefully yet social interactions are not registered. This is the webpage with the non-working setup: http://bit.ly/1dA00dY (obscured domain as per Google's Webmaster Central recommendations for their product forums) This is the structure of the page: In the : ga async code copied from the analytics' page a script tag linking to stored in the same domain. the twitter js loading tag In the the fb-root div the facebook async loading js including the _ga.trackFacebook(); call the social buttons afterwards, like so: (with the proper URL) Tweet (with the proper handle) That's it. As far as I can tell, I have implemented it exactly like in the example, but likes and twitts aren't registered. I have also altered the ga_social_tracking.js to register the social interactions as events, adding the code below. It doesn't work either. What could be wrong? Thanks! Code added to ga_social_tracking.js var url = document.URL; var category = 'Social Media'; /* Facebook */ FB.Event.subscribe('edge.create', function(href, widget) { _gaq.push(['_trackEvent', category, 'Facebook', url]); }); /* Twitter */ twttr.events.bind('tweet', function(event) { _gaq.push(['_trackEvent', category, 'Twitter', url]); });

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• Homepage not showing on Google

  - by MIke Mayberry

  About six weeks ago my homepage (mayberrykayakingdotcodotuk) disappeared from the google organic search for "kayaking pembrokeshire" despite it having been number 2 within a few weeks of it's launch last summer. My previous site (www.mikemayberrykayakingdotcodotuk) had been 2nd for about six years and has 301 redirects for all pages to the new site. Google toolbar still rates the homepage as 3/10 and the domain is still showing in search results, just not the homepage. A little research suggests that this is most likely to be due to an issue with google treating two pages as identical content (one with www. and one with not) since the changes in their algorithms around that time and that the way to fix this is to add some code somewhere. This makes sense to me as my print advertising doesn't have the www part of the address. I have cpanel access but a limited knowledge on web coding, having picked things up as I've gone along and paid for designers etc., when needed. Would someone be able to let me know where I have to go to add the code and what code I need to add to redirect the crawlers to one page? Or is there another issue that is causing this? Thanks in advance.

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• Google Analytics Visitors drop-off for certain region of site only

  - by crmpicco

  I have an issue with the tracking on my site where I have seen a dramatic drop off of visitors to the site from a certain region. I have four regions on my site at the moment, these are UK, EU, US and RoW (Rest of the World). The UK, EU and US regions are unaffected, only the RoW region suffers this drop-off. I have included a screen shot below from my GA account, which shows this effect. My GA code, which is included on every page on the site is below. I have changed the UA account number intentionally for this example. There have been no changes made to the GA account or the tracking code in a live environment for some considerable time, but for some reason I am seeing the drop-off for this region only. In the code below I am not tracking page views on certain pages as I have event tracking setup for these pages. <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-18721873-5']); _gaq.push(['_setCookiePath', '/row/']); if ( typeof(p_page) != 'undefined') { // do nothing if user is on above pages // N.B. there are a series of conditions in this if statement checking that we are not on a particular page } else { _gaq.push(['_trackPageview']); } </script>

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• dynamic module creation

  - by intuited

  I'd like to dynamically create a module from a dictionary, and I'm wondering if adding an element to sys.modules is really the best way to do this. EG context = { a: 1, b: 2 } import types test_context_module = types.ModuleType('TestContext', 'Module created to provide a context for tests') test_context_module.__dict__.update(context) import sys sys.modules['TestContext'] = test_context_module My immediate goal in this regard is to be able to provide a context for timing test execution: import timeit timeit.Timer('a + b', 'from TestContext import *') It seems that there are other ways to do this, since the Timer constructor takes objects as well as strings. I'm still interested in learning how to do this though, since a) it has other potential applications; and b) I'm not sure exactly how to use objects with the Timer constructor; doing so may prove to be less appropriate than this approach in some circumstances. EDITS/REVELATIONS/PHOOEYS/EUREKAE: I've realized that the example code relating to running timing tests won't actually work, because import * only works at the module level, and the context in which that statement is executed is that of a function in the testit module. In other words, the globals dictionary used when executing that code is that of main, since that's where I was when I wrote the code in the interactive shell. So that rationale for figuring this out is a bit botched, but it's still a valid question. I've discovered that the code run in the first set of examples has the undesirable effect that the namespace in which the newly created module's code executes is that of the module in which it was declared, not its own module. This is like way weird, and could lead to all sorts of unexpected rattlesnakeic sketchiness. So I'm pretty sure that this is not how this sort of thing is meant to be done, if it is in fact something that the Guido doth shine upon. The similar-but-subtly-different case of dynamically loading a module from a file that is not in python's include path is quite easily accomplished using imp.load_source('NewModuleName', 'path/to/module/module_to_load.py'). This does load the module into sys.modules. However this doesn't really answer my question, because really, what if you're running python on an embedded platform with no filesystem? I'm battling a considerable case of information overload at the moment, so I could be mistaken, but there doesn't seem to be anything in the imp module that's capable of this. But the question, essentially, at this point is how to set the global (ie module) context for an object. Maybe I should ask that more specifically? And at a larger scope, how to get Python to do this while shoehorning objects into a given module?

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• Should I use a config file or database for storing business rules?

  - by foiseworth

  I have recently been reading The Pragmatic Programmer which states that: Details mess up our pristine code—especially if they change frequently. Every time we have to go in and change the code to accommodate some change in business logic, or in the law, or in management's personal tastes of the day, we run the risk of breaking the system—of introducing a new bug. Hunt, Andrew; Thomas, David (1999-10-20). The Pragmatic Programmer: From Journeyman to Master (Kindle Locations 2651-2653). Pearson Education (USA). Kindle Edition. I am currently programming a web app that has some models that have properties that can only be from a set of values, e.g. (not actual example as the web app data confidential): light-type = sphere / cube / cylinder The light type can only be the above three values but according to TPP I should always code as if they could change and place their values in a config file. As there are several incidents of this throughout the app, my question is: Should I store possibly values like these in: a config file: 'light-types' = array(sphere, cube, cylinder), 'other-type' = value, 'etc = etc-value a single table in a database with one line for each config item a database with a table for each config item (e.g. table: light_types; columns: id, name) some other way? Many thanks for any assistance / expertise offered.

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• How to fix out the error dpkg: error processing colord (--configure):

  - by ranjitpradhan

  I have upgrade my ubuntu from 11.10 to 12.04. at last i can found that when i tries to install some packages it shows a error. after reading some blog i tried to fix that error by "sudo dpkg --configure -a". but when i run this command it show another error this Setting up colord (0.1.16-2) ... useradd: cannot lock /etc/passwd; try again later. adduser: `/usr/sbin/useradd -d /var/lib/colord -g colord -s /bin/false -u 115 colord' returned error code 1. Exiting. dpkg: error processing colord (--configure): subprocess installed post-installation script returned error exit status 1 Setting up whoopsie (0.1.32) ... useradd: cannot lock /etc/passwd; try again later. adduser: `/usr/sbin/useradd -d /nonexistent -g whoopsie -s /bin/false -u 115 whoopsie' returned error code 1. Exiting. dpkg: error processing whoopsie (--configure): subprocess installed post-installation script returned error exit status 1 Setting up lightdm (1.2.1-0ubuntu1) ... Adding system user `lightdm' (UID 115) ... Adding new user `lightdm' (UID 115) with group `lightdm' ... useradd: cannot lock /etc/passwd; try again later. adduser: `/usr/sbin/useradd -d /var/lib/lightdm -g lightdm -s /bin/false -u 115 lightdm' returned error code 1. Exiting. dpkg: error processing lightdm (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of ubuntu-desktop: ubuntu-desktop depends on lightdm; however: Package lightdm is not configured yet. dpkg: error processing ubuntu-desktop (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: colord whoopsie lightdm ubuntu-desktop what can i do now ?

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• Debugger for file I/O development?

  - by datenwolf

  Okay, the question title may be a bit cryptic. But it aptly describes what I'm looking for: I think every experienced coder went through this numerous times: You get a binary file format specification, you implement the reader for it, and… nothing works like expected. So you run your code in the debugger, go execute through the code line by line, every header field is read in seemingly correct, but when it comes to the bulk data, offset and indices no longer match up. What would really help in this situation was a binary file viewer, that shows you the progress of your file pointer, as you step through the code, and ideally would also highlight all memory maps. Then you could see the context of the current I/O operations, most notably those darn "off-by-one" mistakes, which are even more annoying when reading a file. Implementing such a debugger should not be too hard. traces on the process' file descriptors/handles and triggers on the I/O functions, to update the display. Only: I don't know of such a kind of debugger to exist. Do I just lack knowledge about the existance of such a tool, or is there really no such thing?

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• Where should "display functions" live in an MVC web app?

  - by User

  I'm using the Yii Framework which is an MVC php framework that is pretty similar to your standard web-based MVC framework. I want to display the related data from a many-to-many table as a list of strings in my view. Assuming a table schema like: tag { id, name } post { id, title, content, date } post_tag { post_id, tag_id } A post will display like: Date: 9/27/2012 Title: Some Title Content: blah blah blah... Tags: Smart Funny Cool Informative I can achieve this by doing something like this in my Post view: <?php echo join(' ', array_map(function($tag) { return $tag->name; }, $model->tags)); ?> (where $model->tags is an array of Tag objects associated with my model) My questions are: Is this amount of code/logic okay in the view? (Personally I think I'd rather just reference a property or call a single function.) If not, where should this code live? In the model? the controller? a helper? Potentially I may want to use in in other views as well. Ultimately I think its purely a display issue which would make me think it should be in the view, but then I have to repeat the code in any view I want to use it in.

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• Network Security Device/Software

  - by Campo

  We currently run Symantec Antivirus Corporate 10.2. The software is really easy to manage on a network but the actual virus detection isn't bad but the malware detection is crap. We recently were infected with a email bot that got us put on some block lists. This has been resolved. I cannot have that happen again. I would like to find a program as easy to manage as symantec that I can install on all the user's workstations as well as the servers. We run a windows 2003 domain. We have a couple 2008 test servers in the environment. Most of the workstations are xp though I am using windows 7 and symantect is not compatible with this OS... So we need a solution that would cover all those operating systems. If it could be installed on macs too that would be a bonus though not necessary at all. This software must detect: Viruses AND Malware I am looking for something that combines the features in anti-malware programs like malwarebytes or spybot with an antivirus program like symantec or AVG. Alternatively if there is a piece of hardware that is a firewall, router, and packet inspection for virus/spam that would be the most ideal solution. I then could supplement with a piece of software that could pickup what the hardware misses. Thank you for your suggestions.

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• Reformatting and version control

  - by l0b0

  Code formatting matters. Even indentation matters. And consistency is more important than minor improvements. But projects usually don't have a clear, complete, verifiable and enforced style guide from day 1, and major improvements may arrive any day. Maybe you find that SELECT id, name, address FROM persons JOIN addresses ON persons.id = addresses.person_id; could be better written as / is better written than SELECT persons.id, persons.name, addresses.address FROM persons JOIN addresses ON persons.id = addresses.person_id; while working on adding more columns to the query. Maybe this is the most complex of all four queries in your code, or a trivial query among thousands. No matter how difficult the transition, you decide it's worth it. But how do you track code changes across major formatting changes? You could just give up and say "this is the point where we start again", or you could reformat all queries in the entire repository history. If you're using a distributed version control system like Git you can revert to the first commit ever, and reformat your way from there to the current state. But it's a lot of work, and everyone else would have to pause work (or be prepared for the mother of all merges) while it's going on. Is there a better way to change history which gives the best of all results: Same style in all commits Minimal merge work ? To clarify, this is not about best practices when starting the project, but rather what should be done when a large refactoring has been deemed a Good Thing™ but you still want a traceable history? Never rewriting history is great if it's the only way to ensure that your versions always work the same, but what about the developer benefits of a clean rewrite? Especially if you have ways (tests, syntax definitions or an identical binary after compilation) to ensure that the rewritten version works exactly the same way as the original?

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• How can I learn more about ADF?

  - by jhpierce -Oracle

  Look to the Oracle Technology Network for a wealth of information, tutorials, best practices and coding examples. The place to start is the Oracle Application Development Framework (ADF) web page. The Oracle ADF page has basic information and downloads for ADF, but the real wealth is in the links to other pages. One of the pages is the Oracle ADF Code Corner,  which is a blog-style column that provides hints, tips and coding examples for ADF developers. The content on this page ranges from easy to complex and often contains advanced programming concepts. The content is inspired by questions asked on the Oracle JDeveloper customer forum on OTN. The ADF Code Corner has many articles that will inspire your imagination and possibly solve your coding problem.How about the Oracle ADF Architecture Square link? The Oracle ADF Architecture Square focuses on architectural issues and developer guidelines for writing ADF software solutions. The goal is to give ADF developers an understanding of the necessary decisions for building a successful ADF application, to offer potential architectural blueprints to choose from when putting the ADF application together, and to provide potential ADF best practices to take back to your development team. The Oracle ADF Mobile link gives information on developing mobile applications for iOS and Android based applications. There are links to ADF Mobile Overview, ADF Mobile demos and ADF Mobile courses.The Sample ADF Applications link lists sample applications and other resources where you can find code samples for ADF. These are complete ADF applications that can be downloaded into JDeveloper and give you insight into coding an application.There are many more links found under the "Learn More" tab that can equip the developer with the knowledge they need to develop their applications. There are links to overview papers, technical resources, related topics and available training. The information you need IS just a click away.

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• Searching in Ruby on Rails - How do I search on each word entered and not the exact string?

  - by bgadoci

  I have built a blog application w/ ruby on rails and I am trying to implement a search feature. The blog application allows for users to tag posts. The tags are created in their own table and belong_to :post. When a tag is created, so is a record in the tag table where the name of the tag is tag_name and associated by post_id. Tags are strings. I am trying to allow a user to search for any word tag_name in any order. Here is what I mean. Lets say a particular post has a tag that is 'ruby code controller'. In my current search feature, that tag will be found if the user searches for 'ruby', 'ruby code', or 'ruby code controller'. It will not be found if the user types in 'ruby controller'. Essentially what I am saying is that I would like each word entered in the search to be searched for, not necessarily the 'string' that is entered into the search. I have been experimenting with providing multiple textfields to allow the user to type in multiple words, and also have been playing around with the code below, but can't seem to accomplish the above. I am new to ruby and rails so sorry if this is an obvious question and prior to installing a gem or plugin I thought I would check to see if there was a simple fix. Here is my code: View: /views/tags/index.html.erb <% form_tag tags_path, :method => 'get' do %> <p> <%= text_field_tag :search, params[:search], :class => "textfield-search" %> <%= submit_tag "Search", :name => nil, :class => "search-button" %> </p> <% end %> TagsController def index @tags = Tag.search(params[:search]).paginate :page => params[:page], :per_page => 5 @tagsearch = Tag.search(params[:search]) @tag_counts = Tag.count(:group => :tag_name, :order => 'count_all DESC', :limit => 100) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @tags } end end Tag Model class Tag < ActiveRecord::Base belongs_to :post validates_length_of :tag_name, :maximum=>42 validates_presence_of :tag_name def self.search(search) if search find(:all, :order => "created_at DESC", :conditions => ['tag_name LIKE ?', "%#{search}%"]) else find(:all, :order => "created_at DESC") end end end

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• digital magazine publishing engine licensing question

  - by nosarious

  I have a publishing engine I have been developing for thirty months but find myself being unable to work on it during my masters degree. I would like to make it open source in the interim to get others to use it and improve how it works. I would like to consider a licensing system that allows for multiple instances of the software for singular users (ie, a newspaper/magazine or zine hosting the code on their own). I would like to limit it from becoming the basis of a larger magazine hosting service right now because it is intended to be an integral part of a much larger publishing ecosystem which allows for the creation, dissemination and collection of publications as a free or very inexpensive service. Right now there is no license associated with it, which is why I am not posting a link here. (This system was developed to counter implied censorship for digital magazines and remove costly and confusing 'barriers to entry' for creators wishing to make interactive digital content. It is intended to be useful for free, but I would like to prevent people taking the code and using it to take advantage of others. It needs a bit of work to separate the content from the page itself to allow the access of multiple which I cannot develop right now) Any help or suggestion on how to handle licensing this code for contributions and use would be appreciated, and if anyone would like to see examples or the github I would be happy to send it.

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• What actions to take when people leave the team?

  - by finrod

  Recently one of our key engineers resigned. This engineer has co-authored a major component of our application. We are not hitting Truck number yet though, but we're getting close :) Before the guy waltzes off, we want to take actions necessary to recover from this loss as smoothly as possible and eventually 'grow' the rest of the team to competently cover the parts he authored. More about the context: the domain the component covers and the code are no rocket science but still a lot of non-trivial stuff. Some team members can already cover a lot of this but those have a lot on their plates and we want to make sure every. (as I see it): Improve tests and test coverage - especially for the non-trivial stuff, Update high level documents, Document any 'funny stuff' the code does (we had to do some heavy duct-taping), Add / update code documentation - have everything with 'public' visibility documented. Finally the questions: What do you think are the actions to take in this situation? What have you done in such situations? What did or did not work well for you?

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• Forking a GPL dual licensed software with business owned copyrights

  - by Eric

  After receiving some threats of the copyrights holder of a dual licensed software(GPL2 and commercial) to buy the commercial version for projects in production, I am thinking to make a fork. In a case of GPL2 and commercially dual licensed with business owned copyrights software, is forking the GPL2 version an option? Also, is forking a good way to deal with such cases? Background information The software is a web CMS released under 2 versions a GPL2 free open source edition and a commercial edition including technical support and extra functionality. The problem is that now, basing their argumentation on the "distribution" definition of the GPL2, the company holding the copyrights argue that delivering the software and some extensions to a client is considered as a "distribution". And that such a "distribution" falls under the GPL2 obligation to release the custom made extension code. Custom made extensions are mainly designs, templates and very specific functionality. Basically they give me 3 choices: Buying the commercial licensed edition for projects based on the GPL in production, Deleting all the projects in production based on GPL2 version, Releasing all the extensions as GPL2 code. The first 2 options are nothing realistic for finished projects. The third option could be fine, but as most of the extensions are very specific, cleaning the code to make it usable by other users means lot of works and also I am not sure the clients will appreciate to have their website designs and specific functionality released publicly. The copyrights holding company even contacted some clients directly, giving them the "choice". I know that this is a very corporate interpretation of GPL2, and a such action is nothing close to legal, but as an independent developer, I don't want to take the risk to get involved in some long and tiring legal procedures. PS. This question was first asked on Stack Overflow where it felt out of the scope and closed, after reading the present site FAQ, discussing about software licensing seems fine.

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• Commands in Task-It - Part 1

  Download Source Code NOTE: To run the source code provided your will need to update to the RC (release candidate) versions of Silverlight 4 and VisualStudio 2010. In recent blog posts, like my MVVM post, I used Commands to invoke actions, like Saving a record. In this rather simplistic sample I will talk about the basics of Commands, and in my next post will get deeper into it. What is a Command? I remember the first time a UI designer used the word "command" I wasn't really sure what she was referring to. I later realized that it is just a term that is used to represent some UI control that can invoke an action, like a Button, HyperlinkButton, RadMenuItem, RadRadioButton, etc. Why should we use Commands? I'm sure you're familiar with the code behind approach of handling events. For example, if you had a Button and a RadMenuItem that ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Best practices in versioning

  - by Gerenuk

  I develop some scripts for data analysis in a small team. For the moment we use SVN, but not in a very structured way. We haven't even looked how to use branches even though we need this functionality. What do you suggest as the best practice to setup the following system: two code bases (core and plugins) versions can be incompatible to previous scripts sometimes individual features are being developed and not yet finished, while other fixes have to be done urgently to the code In the end we don't deliver the code as a package, but rather place the Python scripts in some directory (with version names?). Some other python script which serves as a configuration choses the desired version, sets the path to these libraries and then starts to import the modules. I saw stable releases to be named "trunk" so I did the same. However, no version numbers yet. Core and plugins are different repositories, however we have to match versions for compatibility. Can you suggest some best practices or reference to ease development and reduce chaos? :) Some suggested GIT. I haven't heard about it, but I'm free to change.

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• Windows phone app xaml error

  - by thewarri0r9

  i am developing an app for windows phone 8 and i stuck on this code which visual studio showing invalid xaml. But Code compiles and works well. Invalid xaml Code is : <DataTemplate x:Key="AddrBookItemTemplate"> <StackPanel Margin="0,0,0,2" Orientation="Horizontal"> <StackPanel Width="80" Orientation="Horizontal" Height="80"> <Ellipse Margin="0" Height="70" Width="70" HorizontalAlignment="Left" Stroke="{x:Null}"> <Ellipse.Fill> <ImageBrush Stretch="Fill" ImageSource="{Binding imageBytes, Converter={StaticResource BytesToImageConverter}}"/> </Ellipse.Fill> </Ellipse> </StackPanel> <StackPanel Height="80" Margin="0" Width="380" HorizontalAlignment="Left"> <TextBlock FontWeight="Bold" Text="{Binding FirstName}" FontFamily="Segoe WP Semibold" FontSize="30" VerticalAlignment="Top" Margin="5,0,0,0" HorizontalAlignment="Left" /> <TextBlock Text="{Binding Phone}" FontFamily="Segoe WP" FontSize="24" Foreground="{StaticResource PhoneTextBoxReadOnlyBrush}" Margin="5,0,0,-12" Width="320" HorizontalAlignment="Left" VerticalAlignment="Top"/> </StackPanel> </StackPanel> </DataTemplate> I am serializing image by converting it to byte, it works fine but if image is null it gives an error. code behind: if (e.Results != null) { List<AddressBook> source = new List<AddressBook>(); foreach (var result in e.Results) { if (result.PhoneNumbers.FirstOrDefault() != null && result.GetPicture()!=null) { BitmapImage bmp = new BitmapImage(); BitmapImage nullbmp = new BitmapImage(); if (result.GetPicture() == null) { bmp.UriSource = new Uri(@"/Images/ci2.png", UriKind.RelativeOrAbsolute); } else { bmp.SetSource(result.GetPicture()); } listobj.Add(new AddressBook() { FirstName = result.DisplayName != null ? result.DisplayName : "", imageBytes = AddressBook.imageConvert(bmp), EmailAddress = "", LastName = "", Phone = result.PhoneNumbers.FirstOrDefault() != null ? result.PhoneNumbers.FirstOrDefault().PhoneNumber : "", }); } } Above code show an error "object reference not set to instance of an object". I want to show the default image (or color) in ellipse when image is null.What should I do?

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• sharing life experience

  - by gcc

  I am a student of computer engineering. I have never done any programming before, and as you can understand, I don't know how to study it or how to make my own programs. My English is weak [edited for clarity - ed], and so if you don't like the choices I list, please feel free to provide others. How should I study? How should I learn programming languages? Study completely from a book. Don't study from a book, just try writing code. A mix of the two; study from a book, then try writing code. Study half the book, then write the code by hand on paper. Listed to the teacher, then try to solve general problems (those not from any specific chapter). I have send that question to stackoverflow before when I am at first year. Now, I want to construct webpage to guide fresh students by giving advise of yours and mines.Maybe, you wonder Why I want to construct webpage , I just want help the other student. I am giving a link to that question < http://stackoverflow.com/questions/3389465/how-should-i-study-programming-languagess If you have other advice, feel free. EDIT: This web cite, I think , is constructed to share member's life experience and also I know these experiences is valuable . So I have no right to want your opinion, But I want your opinion / experience even if you think it is not so helpful to other

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• K8NDRE motherboard in server fails to complete BIOS load with error 0078

  - by John

  K8NDRE motherboard with 4 sata drives, was running fine. Drives had raid-0 and raid-1 partitions, using mdadm. The onboard raid is disabled. Upon reformatting the drives, setting a new partition structure and new raid partitions, the bios fails to finish loading, with 0078 in the bottom right corner. Tried using completely new set of drives, and bios worked fine. Able to boot from a usb, format the drives, partition them, start raid, and then installed os. Reboot and received the same error from the bios, 0078. Works fine if I unplug the sata drives. Any thoughts? Physical inspection reveals no damage cables, connectors, or capacitors. Server was running happily for over a year, and this is the first problem it has had. Per Michael Hampton's answer: The drives, unjumpered and supporting sata III worked fine originally, and worked fine for formatting and having new partitions and raid installed on them. I did try jumpering one, with no change. If I put a brand new unformatted drive in, the motherboard recognizes it and I can proceed with formatting and installing. When I reboot, I get the 0078. I have 4 sata cables-the board supports 4 drives, so I tried each and no change. I am close to calling the motherboard done.

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• How do I drag my widgets without dragging other widgets?

  - by Cypher

  I have a bunch of drag-able widgets on screen. When I am dragging one of the widgets around, if I drag the mouse over another widget, that widget then gets "snagged" and is also dragged around. While this is kind of a neat thing and I can think of a few game ideas based on that alone, that was not intended. :-P Background Info I have a Widget class that is the basis for my user interface controls. It has a bunch of properties that define it's size, position, image information, etc. It also defines some events, OnMouseOver, OnMouseOut, OnMouseClick, etc. All of the event handler functions are virtual, so that child objects can override them and make use of their implementation without duplicating code. Widgets are not aware of each other. They cannot tell each other, "Hey, I'm dragging so bugger off!" Source Code Here's where the widget gets updated (every frame): public virtual void Update( MouseComponent mouse, KeyboardComponent keyboard ) { // update position if the widget is being dragged if ( this.IsDragging ) { this.Left -= (int)( mouse.LastPosition.X - mouse.Position.X ); this.Top -= (int)( mouse.LastPosition.Y - mouse.Position.Y ); } ... // define and throw other events if ( !this.WasMouseOver && this.IsMouseOver && mouse.IsButtonDown( MouseButton.Left ) ) { this.IsMouseDown = true; this.MouseDown( mouse, new EventArgs() ); } ... // define and throw other events } And here's the OnMouseDown event where the IsDraggable property gets set: public virtual void OnMouseDown( object sender, EventArgs args ) { if ( this.IsDraggable ) { this.IsDragging = true; } } Problem Looking at the source code, it's obvious why this is happening. The OnMouseDown event gets fired whenever the mouse is hovered over the Widget and when the left mouse button is "down" (but not necessarily in that order!). That means that even if I hold the mouse down somewhere else on screen, and simply move it over anything that IsDraggable, it will "hook" onto the mouse and go for a ride. So, now that it's obvious that I'm Doing It Wrong™, how do I do this correctly?

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• Objective-C++ Memory Problem

  - by Stephen Furlani

  Hello, I'm having memory woes. I've got a C++ Library (Equalizer from Eyescale) and they use the Traversal Visitor Pattern to allow you to add new functionality to their classes. I've finally figured out how it works, and I've got a Visitor that just returns the properties from one of the objects. (since I don't know how they're allocated). so. My little code does this: VisitorResult AGLContextVisitor::visit( Channel* channel ) { // Search through Nodes, Pipes until we get to the right window. // Add some code to make sure we find the right one? // Not executing the following code as C++ in gdb? eq::Window* w = channel->getWindow(); OSWindow* osw = w->getOSWindow(); AGLWindow* aw = (AGLWindow *)osw; AGLContext agl_ctx = aw->getAGLContext(); this->setContext(agl_ctx); return TRAVERSE_PRUNE; } So here's the problem. eq::Window* w = channel->getWindow(); (gdb) print w 0x0 BUT If I do this: (gdb) set objc-non-blocking-mode off (gdb) print w=channel->getWindow() 0x300effb9 // an honest memory location, and sets w as verified in the Debugger window of XCode. It does the same thing for osw. I don't get it. Why would something work in (gdb) but not in the code? The file is completely a cpp file, but it seems to be running in objc++, since I need to turn blocking off. Help!? I feel like I'm missing some memory-management basic thing here, either with C++ or Obj-C. [edit] channel-getWindow() is supposed to do this: /** @return the parent window. @version 1.0 */ Window* getWindow() { return _window; } The code also executes fine if I run it from a C++-only application. [edit] No... I tried creating a simple stand-alone program since I was tired of running it as a plugin. Messy to debug. And no, it doesn't run in the C++ program either. So I'm really at a loss as to what I'm doing wrong. Thanks, -- Stephen Furlani

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• Migrating My GWB Blog Over To WordPress

  - by deadlydog

  Geeks With Blogs has been good to me, but there are too many tempting things about Word Press for me to stay with GWB.  Particularly their statistics features, and also I like that I can apply specific tags to my posts to make them easier to find in Google (and I never was able to get categories working on GWB). The one thing I don’t like about WordPress is I can’t seem to find a theme that stretches the Content area to take up the rest of the space on wide resolutions…..hopefully I’ll be able to overcome that obstacle soon though. For those who are curious as to how I actually moved all of my posts across, I ended up just using Live Writer to open my GWB posts, and then just changed it to publish to my WordPress blog.  This was fairly painless, but with my 27 posts it took probably about 2 hours of manual effort to do.  Most of the time WordPress was automatically able to copy the images over, but sometimes I had to save the pics from my GWB posts and then re-add them in Live Writer to my WordPress post.  I found another developers automated solution (in alpha mode), but opted to do it manually since I wanted to manually specify Categories and Tags on each post anyways.  The one thing I still have left to do is move the worthwhile comments across from the GWB posts to the new WordPress posts. The largest pain point was that with GWB I was using the Code Snippet Plugin for Live Writer for my source code snippets, and when they got transferred over to WordPress they looked horrible.  So I ended up finding a new Live Writer plugin called SyntaxHighlighter that looks even nicer on my posts If anybody knows of a nice WordPress theme that stretches the content area to fit the width of the screen, please let me know.  All of the themes I’ve found seem to have a max width set on them, so I end up with much wasted space on the left and right sides.  Since I post lots of code snippets, the more horizontal space the better! So if you want to continue to follow me, my blog's new home is now at https://deadlydog.wordpress.com

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• How do you track existing requirements over time?

  - by CaptainAwesomePants

  I'm a software engineer working on a complex, ongoing website. It has a lot of moving parts and a small team of UI designers and business folks adding new features and tweaking old ones. Over the last year or so, we've added hundreds of interesting little edge cases. Planning, implementing, and testing them is not a problem. The problem comes later, when we want to refactor or add another new feature. Nobody remembers half of the old features and edge cases from a year ago. When we want to add a new change, we notice that code does all sorts of things in there, and we're not entirely sure which things are intentional requirements and which are meaningless side effects. Did someone last year request that the login token was supposed to only be valid for 30 minutes, or did some programmers just pick a sensible default? Can we change it? Back when the product was first envisioned, we created some documentation describing how the site worked. Since then we created a few additional documents describing new features, but nobody ever goes back and updates those documents when new features are requested, so the only authoritative documentation is the code itself. But the code provides no justification, no reason for its actions: only the how, never the why. What do other long-running teams do to keep track of what the requirements were and why?

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