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• How To Implement The Query Side Of CQS in DDD?

  - by Laz

  I have implemented the command side of DDD using the domain model and repositories, but how do I implement the query side? Do I create an entirely new domain model for the UI, and where is this kept in the project structure...in the domain layer, the UI layer, etc? Also, what do I use as my querying mechanism, do I create new repositories specifically for the UI domain objects, something other than repositories, or something else?

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• Web based database administration and browsing for PostgreSQL

  - by peperg

  Do you know any free or affodrable web based database administration and browsing tool for PostgreSQL? Something like phpMyAdmin for MySQL and better than phpPgAdmin. For MySQL I found Chive that looks promissing. I'm looking for something similiar for PostgreSQL.

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• C++ auto function return type implementation [trailing-return-type]

  - by aaa

  hello. Is there macro, something like BOOST_AUTO, which would allow to emulate automatic return type deduction of function in C++? I mean something like trailing-return-type, http://en.wikipedia.org/wiki/C%2B%2B0x#Alternative_function_syntax thank you

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• Simple 2-color differential image compression

  - by Groo

  Is there an efficient, quick and simple example of doing differential b/w image compression? Or even better, some simple (but lossless) streaming technique which could accept a number of frames as input? I have a simple b/w image (320x200) stream, displaying something similar to a LED display, which is updated about once a second using AJAX. Images are pretty similar most of the time, so if I subtracted them, result would compress pretty well (even with simple RLE). Is something like this available?

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• Writing a factory for classes that have required arguments

  - by Kyle Adams

  I understand the concept of factory pattern such that you give it something it spits out something of the same template back so if I gave a factory class apple, I expect to get many apples back with out having to instantiate a new apple ever time. what if that apple has a required argument of seed, or multiple required arguments of seed, step and leaf? how do you use factory pattern here? that is how do I use factory pattern to instantiate this: $apple = new Apple($seed, $stem, $leaf);

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• What's the performance penalty of using isKindOfClass in Objective C?

  - by durcicko

  I'm considering introducing: if ([myInstance isKindOfClass:[SomeClass class]]) { do something...} into a piece of code that gets called pretty often. Will I introduce a significant performance penalty? In Objective C, is there a quicker way of assessing whether a given object instance is of certain class type? For example, is the following quicker? (I realize the test is somewhat different) if (myInstance.class == [SomeClass class]) { do something else...}

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• Rewrite only external requests to a certain URL

  - by Cyclone

  I want to rewrite from http://example.com/blah/<something>/<somethingelse> to http://<something>.example.com/<somethingelse>, but only if the request is not an internal redirect. How can I achieve this effect? I know I can use %{THE_REQUEST}, but I can't seem to find any good examples. Thanks for the help!

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• How can you replace a link's target in Greasemonkey?

  - by Derek

  I'm trying to write a script in Greasemonkey that will replace a link's target with something else, but with my limited Javascript knowledge I don't really know how to do this. Basically I'm trying to find all links containing a certain string of characters (ex: //a[contains(@href, 'xx')] ), and either replace them with another link, or append something to them (replacing 'abc123.com' with 'zyx987.com' or 'abc123.com' with 'abc123.com/folder'). If you could point me on the right path I'd greatly appreciate it.

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• One class instance throw all controller

  - by Falcon

  Hello i i have different class and controller. and i need that one instance of model will be available in controller/ now i'm doing something like this: def method1 inst = @MyClass.new(params) inst.action .... def method2 inst = @MyClass.new(params) inst.action .... but i want something like this def method1 @inst.action .... def method2 @inst.action or self.inst i't doesn't matter how i can do it? def self.inst MyClass.new(params) end doesn't work...

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• How do I nested options for plugins in jQuery

  - by Oscar Godson

  I know how to do plugins, but how do I do nested options like: var defaults = { spacing:10, shorten_to:50, from_start:0, from_end:2, classes: { test:'testing' } }; i know that isn't right, i just dont know how to write the proper syntax when I want to do something like this: $('#breadcrumbs').breadcrumbs({classes{test:'new_example'},spacing:12}) other suggestions are welcome, im in need of the ability to custom class names and there are 7, so rather than making something like test_class, example_class, etc id like it cleaner and neater like the example above.

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• How to send a HTTP "Bad Request" Response

  - by michael

  Hi, I am writing a C program which needs to send back a HTTP Bad Response. This is what I write to socket. HTTP/1.1 400 Bad Request\r\n Connection: close\r\n \r\n My question is why the broswer still spinning (like appear it is still loading something? Am I missing header in the Http response? OR I miss something else? Thank you.

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• WPF: Is there a built-in TreeGrid / TreeListView?

  - by John Gietzen

  I need something just like this: But, I need it in WPF. is this something that is built in, or am I going to have to build it myself? I assume it has to be somewhere in the framework, since VS2010 is build in WPF.

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• solr-tomcat package on ubuntu lucid

  - by pablo

  Hi I've installed solr-tomcat package on ubuntu lucid (10.04 latest). It automatically install java and tomcat and hopefully all other dependencies. I can access tomcat at http://localhost:8080 but not sure where to find the solr web admin http://localhost:8180 gives me nothing. Is this package known to work? I've read that on previous ubuntu releases the packages were broken. Do I need to configure anything after installing the package? Thanks

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• Is there a free (LGPL compatible) Grid plugin for jQuery that has similiar capabilities to the Ext-J

  - by Ehrann Mehdan

  One of the most appealing features of Ext-JS is the Grid control in my opinion. I was searching for something free that does something close and have set my hopes on jQuery. I haven't found a jQuery (or other LGPL compatible) Table / Grid plugin that allows to: Reorder columns by dragging Resize columns by dragging Add or Remove columns on the fly Have a default good looking UI (subjective, but Ext-JS look I think is a concensus) In addition to the rest most grid controls have (Sort, Paging etc) Is there a free (LGPL) jQuery plugin that does the above?

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• C++ like iterators in python?

  - by uberjumper

  This might be a really dumb question, however i've looked around online, etc. And have not seen a solid answer. What i was wondering, is there a simple way to do something like this? lines = open('something.txt', 'r').readlines() for line in lines: if line == '!': # force iteration forward twice line.next().next() <etc> Is there an easy way to do that in python?

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• dijit style claro not in Google CDN

  - by user256007

  dojo's Theme Tester is Showing theme claro as one available theme in http://archive.dojotoolkit.org/dojo-2010-04-12/dojotoolkit/dijit/themes/themeTester.html?theme=claro But claro is not accessible from Google CDN. I've also tried to use claro from the same place where the ThemeTester is pulling. But layout doesn't look the same. rather it looks broken. However my same code works with other themes

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• A standard document structure for designing software

  - by Zahid

  I am looking for something like this: http://en.wikipedia.org/wiki/Software_design_document But in more detail and also if something is an actual standard like ieee or iso? For my requirements, I use Volere template. Thanks, Zahid

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• Is this possible somehow in C# : if (a==b==c==d) {...}

  - by burak ozdogan

  Hi, Is there a quick way to compare equality of more than one values in C#? something like: if (5==6==2==2){ //do something } Thanks

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• UI Code Level Patterns?

  - by DTS

  Is there a book or some other online resource that covers common code-level UI patterns (not widgets/components per se) and idioms. I'm looking for a resource that goes into some depth on MVC, event models, delegates, etc. Something in a similar vein to the POSA series would be excellent. I'm looking for something that is as platform-agnostic as possible, but I'm not sure if that even IS possible.

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• Updating Commit Message in Mercurial MQ extension

  - by Jerub

  After using hg qnew and hg qrefresh to create and update a patch that I want to apply to my repository, but the commit message that I wrote when I did hg qnew was not very good, it did not reference the ticket number from trac, and I would like to say something in it about some of the issues that my commit addresses. How do I do something like hg qrewritemycommitmessage. I have examined the docs on the website (starting here: http://mercurial.selenic.com/wiki/MqExtension ) and I have come up blank.

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• Facebook database design?

  - by Marin

  I have always wondered how Facebook designed the friend <- user relation. I figure the user table is something like this: user_email PK user_id PK password I figure the table with user's data (sex, age etc connected via user email I would assume). How does it connect all the friends to this user? Something like this? user_id friend_id_1 friend_id_2 friend_id_3 friend_id_N Probably not. Because the number of users is unknown and will expand.

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• Testing your code before releasing to QA

  - by user279521

  I have heard developers say that people who write code should not be the ones testing it. I am looking for peoples experience in this situation. Many times I have done my share of development, then released to the QA dept and had the code sent back to me becuase some aspect of the application was broken due to my coding, regardless of how much I had tested it prior to QA release. Does anyone on this board have a process to follow, that enables them to throughly test their code before releasing to QA?

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• What exactly is a web application framework?

  - by isaiah

  I'm getting into python for cgi and came across Django. I'm not quite sure I understand it very much. Is it something I have to install inside apache or is it just something I can use with my cgi? Wanted to know because I'd love to learn it but my server I'm using doesn't give me a lot of privileges. thanks

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• How to execute a blocking function that returns a value for a maximum amount of time in Java.

  - by gamernb

  How would I go about making a function that would do this in java. String result = null do { SendData() // Run Blocking Function: ReceiveData() Until it returns a result // or t seconds have elapsed // if something returned, result = something // else result = null } while(result == null);

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• $.each and animation confusion

  - by XGreen

  I am expecting when I go $.each($(something).find(something), function(){ $(this).delay(1000).fadeOut(); }); then for each matching element I get a second of delay before it is gone. but what I get is a second of delay and then it all fades out. its 3am and I can't think. please help

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