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• Facade controller, is it efficient?

  - by Berlioz

  Using a facade controller pattern in .net. It seems as if though it is not efficient BECAUSE, for every event that happens in a domain object(Sales, Register, Schedule, Car) it has to be subscribed to by the controller(use case controller) and then the controller in turn has to duplicate that same event to make it available for the presentation, so that the presentation can show it to the user. Does this make sense? Please comment!

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• MySql not storing foreign characters correctly

  - by acidzombie24

  On SQLITE this way fine. I switch to mysql and instead of ??? i get ???. The column is TEXT or sometimes VARCHAR(255) (i believe its VARCHAR(255) in this case). How do i have mysql save the characters properly?

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• NHibernate + Sql Compact + IoC - Connection Managment

  - by Michael

  When working with NHibernate and Sql Compact in a Windows Form application I am wondering what is the best practice for managing connections. With SQL CE I have read that you should keep your connection open vs closing it as one would typically do with standard SQL. If that is the case and your using a IoC, would you make your repositories lifetime be singletons so they exist forever or dispose of them after you perform a "Unit of Work". Also is there a way to determine the number of connections open to Sql CE?

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• Check if file data is binary

  - by Gates127

  when I write a number to binary file, it won't display. but in case of a character, it does. why? how would you check to see if the file containing character is binary?

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• Oracle : Identifying duplicates in a table without index

  - by user288031

  When I try to create a unique index on a large table, I get a unique contraint error. The unique index in this case is a composite key of 4 columns. Is there an efficient way to identify the duplicates other than : select col1, col2, col3, col4, count() from Table1 group by col1, col2, col3, col4 having count() 1 The explain plan above shows full table scan with extremely high cost, and just want to find if there is another way. Thanks !

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• How to raise a validation event from a key press

  - by flavour404

  Hi, I want to raise the: private void txtbox_startdate_Validating(object sender, System.ComponentModel.CancelEventArgs e) {} Function from a key leave event. The leave event looks like: private void txtbox_startdate_Leave(object sender, EventArgs e) {} The trouble is of course if I try and call it in this manner: txtbox_startdate_Validating(sender, e) An error is raised because in this case 'e' is an EventArgs whereas the validation function wants a System.ComponentModel.CancelEventArgs and so, how do I convert EventArgs to a System.ComponentModel.CancelEventArgs or create one so that I can call my validation function? Thanks, R.

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• In a star schema, are foreign key constraints between facts and dimensions neccessary?

  - by Garett

  I'm getting my first exposure to data warehousing, and I’m wondering is it necessary to have foreign key constraints between facts and dimensions. Are there any major downsides for not having them? I’m currently working with a relational star schema. In traditional applications I’m used to having them, but I started to wonder if they were needed in this case. I’m currently working in a SQL Server 2005 environment.

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• Whats wrong with this ASP.NET rewrite?

  - by acidzombie24

  Actually its the mono version of asp.net, XSP. In my begin request function i check the url and rewrite when necessary. In one case i do context.RewritePath("~/App_Data/public" + path); When i try to request images or anything i get a 404 instead of the content. Why?

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• Can a math intensive application cause a crash?

  - by philcolbourn

  I have been messing with hash functions and functions to generate primes etc. I had 3 lock-ups in a short period. This was odd since my macbook rarely locks-up and usually only when I run out of memory - which does not happen often. But in this case, I had three in a row and none since (but I also am not generating as much load as before).

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• multiple log files in symfony

  - by Mike

  I'd like to set up an additional log file in symfony, so that some messages (payment processing in my case) would go to a different file from the rest of symfony. Is it possible? Here's my current log configuration from factories.yml: all: logger: param: level: debug loggers: sf_file_debug: param: level: notice file: /var/log/symfony/%SF_ENVIRONMENT%/%SF_APP%.log

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• What are some reasons that application:didFinishLaunchingWithOptions method could get skipped?

  - by BeachRunnerJoe

  My iPad app was working fine until I opened up IB and started editing the interface. Now, my application:didFinishLaunchingWithOptions isn't getting called. I understand it's an optional function and it gets skipped if it doesn't exist, but in my case it does. What are some reasons that application:didFinishLaunchingWithOptions method could get skipped? Thanks in advance for your help!

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• Asynchronous Delegates Vs Thread/ThreadPool?

  - by claws

  Hello, I need to execute 3 parallel tasks and after completion of each task they should call the same function which prints out the results. I don't understand in .net why we have Asychronous calling (delegate.BeginInvoke() & delegate.EndInvoke()) as well as Thread class? I'm little confused which one to use when? Now in this particular case, what should I use Asychronous calling or Thread class? I'm using C#.

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• How do I format and apply rails methods to output of Ruport?

  - by Angela

  I am creating a report from Ruport and want to be able to take the grouping heading, in this case the ID for the class Email, and wrap a method around it and a link_to to link to the Email view based on the email_id: @table = ContactEmail.report_table(:all, :conditions => ['date_sent >= ? and date_sent <= ?', @monday, @friday]) @grouping = Grouping(@table, :by => "email_id") How do I do that? It feels as if I have little control over the output.

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• Best Python IDE for my situation

  - by ChrisC

  I want to write a database app in Python, using SQLite and wxPython. My only "experience" is 1 class on basic C++ console programming and OOP concepts. Which IDE would be best for my situation? In case it matters, I only need my new program to run on Windows, and I do want to make it "portable". Thank you.

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• Changing Scala version in existing SBT project.

  - by Lukasz Lew

  How can I change Scala version in existing Simple Build Tool project? I would like SBT to check whether the system's Scala version is correct and if it is not the case then download it.

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• Why MyModel.all works in Rails ?

  - by AntonAL

  Hi, i don't understand this little thing: Suppose, we have "Person" model class Person < ActiveRecord::Base end Why Person.all works ? Person.all.each { |p| do_something } This syntax tells us, that we have Person class-object instanciated somewhere ? Or is it some convention over configuration case ?

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• Creating a new log file each day

  - by Jason T.

  As the title implies how can I create a new log file each day in C#? Now the program may not necessarily run all day and night but only get invoked during business hours. So I need to do two things. How can I create a new log file each day? The log file will be have the name in a format like MMDDYYYY.txt How can I create it just after midnight in case it is running into all hours of the night?

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• C# .NET Socket realtime video Block unblock

  - by Allen shen

  when i send realtime media message, socket were blocked and shut down itself. how can i deal with this case? some answers are buffer is not large enough,so can someone give me some demo?thanks

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• Subroutine to apply Daylight Bias to display time in local DST?

  - by vfclists

  UK is currently 1 hour ahead of UTC due to Daylight Savings Time. When I check the Daylight Bias value from GetTimeZoneInformation it is currently -60. Does that mean that translating UTC to DST means DST = UTC + -1 * DaylightBias, ie negate and add? I thought in this case for instance adding Daylight Bias to UTC is the correct operation, hence requiring DaylightBias to be 60 rather than -60.

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• How can I hide empty html table cells with jQuery?

  - by Tommy

  What I have to work with: An html table 5X7. On many queries, there are less that 35 items filling the complete table. How can I "hide" the empty cells dynamically in this case, using jQuery (or any other efficient way)? Thank you.

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• What versions/flavors of WinZip can be opened by the gnu.java.util.zip.dll v.6.0.140.8?

  - by dreynold

  Evaluating a third party data processing tool, I have bumped into a case where some WinZip files cause an exception: Caused by: gnu.java.util.zip.ZipException: Unknown compression method 98 at gnu.java.util.zip.ZipFile.getInputStream(ZipFile.java:470) I have seen this with files created with WinZip 11.2 and newer. What's the latest version of WinZip (or compatible compression method) that the zip.dll can handle? I've been hunting for some reference on this, but other than unversioned source code, I have had little luck so far.

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• pass ...rest to a NetConnection call

  - by dome

  I want to pass a rest in a netconnection call, something like this: public function requestData(service : String, ...params) : void { nc.call(service, params); } this doesn't work since the call is expecting each parameter to be separated by commas, like: nc.call(service, params[0], params[1], params[2]); I've read some posts about apply, but I can't find a solution for this specific case.

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• I want to count the number of occurances of each character in a string

  - by roe

  Ignore spaces, punctuation and anything else that is not a letter. Ignore the case of the incoming letters (so e.g. 'A' and 'a' should be counted together). The results of analysing this String should be added to any analysis performed by previous calls to this method.

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• Why does a Non-existant page returns 302 status when using a custom 404 page in asp.net

  - by webdevbytes

  I have setup custom 404 page custom404.aspx that returns a 404 Not Found error correctly, however the non-existant page that was initially requested returns a 302 Found status. So when I test thispagedoesnotexist.aspx, it returns a 302 Found then the custom404.aspx loads and returns a 404 Not Found status. I want to make sure that search spiders/bots understand that the requested page does not exist and should not show up in any search results. Is this the case? Cheers

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• Oracle query to select rows with unique code

  - by Jasim

  I have a table like this C1 C2 C3 Code 1 2 3 33 1 2 3 34 2 4 1 14 1 2 3 14 i want to select only those record whose code is appearing only in single row. ie, in this case rows with code 33 and 34.. as they appear only once in this table. How can i write a query for that

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