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• What is the best practise to create MSI with some other child MSI as prerequisite?

  - by sankar

  Currently we are using Innosetup as a bootstrapper to install the MSI prerequisites. It makes bit complex to maintain the setup. I found that burn tool which may help us to resolve this issue by having a single setup to install whatever we need. I could not find either documentation or sample for this tool. Is anyone have idea about this? or you can give me the alternate solution if you have. Looking for the alternate soltuion for the actions that we do with ISS bootstrapper now: Extract the files (Main setup, Prerequisite setup) Need to ensure prerequisites status and install on demand. Start main install.

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• MATLAB is changing variables when I do not want it to.

  - by WVUstudent

  Here is my problem in a small bit of code used as an example, trial(0) function [] = trial(test) disp(test) if(test == 1) disp('test is one') test = 0; end disp(test) Matlab prints out this: 0 'test is one' 0 This is not my real code, there are over 500 lines of it, but this is a section of my code where the problem has risen. I have used the search function to see if I have been incrementing any variables anywhere, and have put in over 2 hours trying to see why MATLAB is changing my variables when I don't want it to.

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• UIView Animation won't run transition

  - by dpelletier

  So, I've searched quite a bit for this and can't seem to find a solution. This code works: CGContextRef context = UIGraphicsGetCurrentContext(); [UIView beginAnimations:nil context:context]; [UIView setAnimationDuration:5]; [c setCenter:CGPointMake(200, 200)]; [UIView commitAnimations]; This code doesn't: CGContextRef context = UIGraphicsGetCurrentContext(); [UIView beginAnimations:nil context:context]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:c cache:YES]; [UIView setAnimationDuration:5]; [c exchangeSubviewAtIndex:0 withSubviewAtIndex:1]; [UIView commitAnimations]; And I know the call to exchangeSubViewAtIndex is working because if I remove it from the animation block it functions as expected. Anyone have any insight as to why this transition won't run? Something I need to import?

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• w3c validation error with utf-8

  - by ian

  When I try to validate a certain page I get the below error: Sorry, I am unable to validate this document because on line 136 it contained one or more bytes that I cannot interpret as utf-8 (in other words, the bytes found are not valid values in the specified Character Encoding). Please check both the content of the file and the character encoding indication. The error was: utf8 "\xFF" does not map to Unicode What exactly does this mean and how can I find out what character is causing the problem? The page is generated dynamically in PHP and a bit large and I am not sure what to look for.

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• How can you write a function that accepts multiple types?

  - by matthy

  I have a function that should work on int[] and on String[] now i have made the same function with a int parameter and an String parameter however if it has to go this way its a bit copy paste work and doesn't look very organized is there a way to solve this and put these 4 functions in 2? static public void print(String s) { System.out.println(s); } static public void print(int s) { System.out.println(s); } static public void printArray(String[] s) { for (int i=0; i<s.length; i++) print(s[i]); } static public void printArray(int[] s) { for (int i=0; i<s.length; i++) print(s[i]); } Thanks Matthy

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• Typed Arrays in Gecko 2: Float32Array concatenation and expansion.

  - by janesconference

  Hi all, I'm a bit confused with Javascript Typed Arrays. What I have several *Float32Array*s, that have no concat method. I'd like to concatenate them all inside another Float32Array, but: as I said before, there is no concatenation method if I try to write past the array length, the array is not expanded (aka this won't work - please note that event.frameBuffer and buffer are both Float32Array and that I don't know what the final length of my buffer will be): var length_now = buffer.length; for (var i = 0; i < event.frameBuffer.length; i += 1) { buffer [length_now + i] = event.frameBuffer[i]; } The only solution I found is to copy the Float32Array in a regular array, that's definitely not what I want. How would you do, stackoverflowers?

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• JSF hiding exceptions?

  - by bshacklett

  I have a managed bean for a JSF page which is doing JPA calls in the constructor to populate fields in the bean. I'm having a bit of trouble with another call to persist an entity (to populate data for testing). I'm expecting it to throw some sort of exception since it's not working, but I'm not getting anything. Just of the heck of it I tried the following: Query newQuery = em.createQuery("Bad Syntax"); List newList = newQuery.getResultList(); I'd expect an IllegalArgumentException here since the query string is completely invalid, but the page still loads and I don't see any exceptions anywhere. Am I right in expecting this exception? If so, why am I not seeing it?

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• Keeping a database structure up to date in a project where code is on subversion?

  - by Bruno De Barros

  I have been working with Subversion for a while now, and it's been incredible for the management of my projects, and even to help managing the deployment to several different servers, but there is just the one thing that still annoys me. Whenever I make any changes to the database structure, I need to update every server manually, I have to keep track of any changes I made, and because some of my servers run branches of the project (modifications that are still being worked on, or were made for different purposes), it's a bit awkward. Until now, I've been using a "database.sql" file, which is a dump of the database structure for a specific revision. But it just seems like such a bad way to manage this. And I was wondering, how does everyone else manage their MySQL databases when they're working on a project and using Subversion?

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• How can I do a right outer join where both tables have a where clause?

  - by cdeszaq

  Here's the scenario: I have 2 tables: CREATE TABLE dbo.API_User ( id int NOT NULL, name nvarchar(255) NOT NULL, authorization_key varchar(255) NOT NULL, is_active bit NOT NULL ) ON [PRIMARY] CREATE TABLE dbo.Single_Sign_On_User ( id int NOT NULL IDENTITY (1, 1), API_User_id int NOT NULL, external_id varchar(255) NOT NULL, user_id int NULL ) ON [PRIMARY] What I am trying to return is the following: is_active for a given authorization_key The Single_Sign_On_User.id that matches the external_id/API_User_id pair if it exists or NULL if there is no such pair When I try this query: SELECT Single_Sign_On_User.id, API_User.is_active FROM API_User LEFT OUTER JOIN Single_Sign_On_User ON Single_Sign_On_User.API_User_id = API_User.id WHERE Single_Sign_On_User.external_id = 'test_ext_id' AND API_User.authorization_key = 'test' where the "test" API_User record exists but the "test_ext_id" record does not, and with no other values in either table, I get no records returned. When I use: SELECT Single_Sign_On_User.id, API_User.is_active FROM API_User LEFT OUTER JOIN Single_Sign_On_User ON Single_Sign_On_User.API_User_id = API_User.id WHERE API_User.authorization_key = 'test' I get the results I expect (NULL, 1), but that query doesn't allow me to find the "test_ext_id" record if it exists but would give me all records associated with the "test" API_User record. How can I get the results I am after?

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• Is removing unused functionality a bad thing?

  - by Andrew Grimm

  Is it possible for YAGNI to apply in the past tense? You created some functionality, it was used a little bit a while ago, but you aren't using it any more, and you don't want to maintain it, so you'd rather delete it. Is getting rid of unused or rarely-used functionality neccessarily a bad thing? Background: I use source control, so if I need the functionality again, I can get it. I'm the only user of my software (I'm a bioinformatician analyzing a data set). One scenario where I came across this was that I was using inheritance, with a parent class, and two child classes. One was handling files generated by 454 sequencing (next-generation sequencing), and the other was handling files generated by Sanger sequencing (previous-generation sequencing). I was actively maintaining the latter, but not the former. Maybe my mistake was using inheritance rather than composition, but that's a slightly different story.

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• How do I use a ListProperty(users.user) in a djangoforms.ModelForm on Google AppEngine?

  - by Gabriel

  I have been looking around a bit for info on how to do this. Essentially I have a Model: class SharableUserAsset(db.Model): name = StringProperty() users = ListProperty(users.User) My questions are: What is the best way to associate users to this value where they are not authenticated, visa vi invite from contacts list etc.? Is there a reasonable way to present a list control easily in a djangoforms.ModelForm? Once a user logs in I want to be able to check if that user is in the list for any number of SharableUserAsset class "records", how do I do that? Does user evaluate as a match to an email address or is there a way to look up a valid user against an email address?

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• innovation for technical high school

  - by gnuze

  I work in a high school in Italy. Our goal is forming computer programmers in 5 years. Nowaday, we teach vb.net on Win ( desktop applications using ADO on Access ), C on linux ( process, threads ) , C++ on Linux ( sockets TCP/UDP with UML ), and a bit of ASP.net, flash programming, PHP, Joomla and PIC Microcontrollers. We are looking for something innovative to add in our programs of study, but every teacher have a different point of view: we are debating about python, C#, Arduino, Silverlight and smartphones programming. Any suggestions? Tx in advance.

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• SQL 2008 Encryption Scan

  - by Mike K.

  We recently upgraded a database server from SQL 2005 to SQL 2008 64 bit. CPU utilization is oftentimes running at 100% on all four processors now (this never happended on the SQL 2005 server). When I run sp_lock I see a number of processes waiting on a resource called [ENCRYPTION_SCAN]. I am not using any SQL 2008 encryption features. Does anyone know why I would have tasks waiting on this resource? It appears that whenever I have four processes waiting on this resource, CPU hits 100% on all four processors.

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• ASP.NET control event handler not firing on postback?

  - by Polaris878

  I have a control which has an ImageButton which is tied to an OnClick event... Upon clicking this control, a postback is performed and the event handler is not called. AutoEventWireup is set to true, and I've double checked spelling etc.... We haven't touched this control in over a year and it has been working fine until a couple of weeks ago. We have made changes to controls which load this control... so I'm wondering, what kind of changes could we have made to stop this event handler from being called? There is quite a bit of Javascript going on, so this could be the culprit too... Edit: Some clarification... we are dynamically loading the parent control of the ImageButton in the OnLoad event of the page... if that makes sense.

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• Swapping UIImages causing 'unrecognized selector sent to instance' ?

  - by user158103

  Error: [__NSCFDate drawAtPoint:]: unrecognized selector sent to instance 0xd251e0 Termininating app due to uncaught exception 'NSInvalidArgumentException' Scenario: for the most part this works. But I notice this error, even on the simulator, when I swapping UIImages, slowly, but consistently. For example, I have a retained reference to a UIImage that im drawing. By the click of a picker control I am changing the face image (this occurs in another view-controller). I can consistently recreate this error by continuously changing the faces. It usually crashes at about the 4th swap or more. My theory: It's not loading the image, therefore the image reference is nil. I know ive read a bit about UIImage being cached, so I wouldnt think im running out of memory. Any ideas? Thanks!

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• CruiseControl modificationSet fails to execute when svn points to a url

  - by Woot4Moo

  In my current CruiseControl setup I am running the following target: <modificationset quietperiod="30"> <svn RepositoryLocation="http://my/url/repo/trunk" /> </modificationset> I do a simple checkin of a blank text file and subsequently the messages I receive in the CruiseControl log are as follows: [cc]May-13 15:53:56 Project - Project mine: bootstrapping [cc]May-13 15:53:56 jectController- mine Controller: build progress event: bootstrapping [cc]May-13 15:53:56 Project - Project mine: checking for modifications [cc]May-13 15:53:56 jectController- mine Controller: build progress event: checking for modifications [cc]May-13 15:53:59 Project - Project mine: No modifications found, build not necessary. [cc]May-13 15:53:59 Project - Project mine: idle [cc]May-13 15:53:59 jectController- connectfour Controller: build progress event: idle [cc]May-13 15:53:59 Project - Project mine: next build in 1 minutes [cc]May-13 15:53:59 Project - Project mine: waiting for next time to build [cc]May-13 15:53:59 jectController- mine Controller: build progress event: waiting for next time to build Tortoise: TortoiseSVN 1.6.8, Build 19260 - 32 Bit , 2010/04/16 20:20:11 CruiseControl: 2.8.3

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• IronPython :- Visual Studio 2010 or SharpDevelop?

  - by Cruachan

  I'm considering developing a medium-size project for a client in IronPython. It's a pretty straightforward replacement for an existing system I've been supporting for several years, so the specification is quite well defined and understood. This is my first significant IronPython and .Net project so I'm expecting a bit of a learning curve. I was going to use SharpeDevelop, but I can purchase VisualStudion 2010 for a reasonable price and whilst I understood that IronPython Tools for Visual Studio 2008 were not so good, I haven't seen anything about the update for 2010 yet. Has anyone used either or both of these in a reasonable-sized commercial environment and do you have any recommendations? (and I'm aware of this question, but this is specifically about VS2010)

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• simple python file writing question

  - by aharon

  I'm learning Python, and have run into a bit of a problem. On my OSX install of Python 3.1, this happens in the console: >>> filename = "test" >>> reader = open(filename, 'r') >>> writer = open(filename, 'w') >>> reader.read() '' >>> writer.write("hello world\n") 12 >>> reader.read() '' And calling more test in BASH confirms that there is nothing in test. What's going on? Thanks.

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• MATLAB fill area between lines

  - by dustynrobots

  I'm trying to do something similar to what's outlined in this post: MATLAB, Filling in the area between two sets of data, lines in one figure but running into a roadblock. I'm trying to shade the area of a graph that represents the mean +/- standard deviation. The variable definitions are a bit complicated but it boils down to this code, and when plotted without shading, I get the screenshot below: x = linspace(0, 100, 101)'; mean = torqueRnormMean(:,1); meanPlusSTD = torqueRnormMean(:,1) + torqueRnormStd(:,1); meanMinusSTD = torqueRnormMean(:,1) - torqueRnormStd(:,1); plot(x, mean, 'k', 'LineWidth', 2) plot(x, meanPlusSTD, 'k--') plot(x, meanMinusSTD, 'k--') But when I try to implement shading just on the lower half of the graph (between mean and meanMinusSTD) by adding the code below, I get a plot that looks like this: fill( [x fliplr(x)], [mean fliplr(meanMinusSTD)], 'y', 'LineStyle','--'); It's obviously not shading the correct area of the graph, and new near-horizontal lines are being created close to 0 that are messing with the shading. Any thoughts? I'm stumped.

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• sql query question

  - by bu0489

  hey guys, just having a bit of difficulty with a query, i'm trying to figure out how to show the most popular naturopath that has been visited in a centre. My tables look as follows; Patient(patientId, name, gender, DoB, address, state,postcode, homePhone, businessPhone, maritalStatus, occupation, duration,unit, race, registrationDate , GPNo, NaturopathNo) and Naturopath (NaturopathNo, name, contactNo, officeStartTime, officeEndTime, emailAddress) now to query this i've come up with SELECT count(*), naturopathno FROM dbf10.patient WHERE naturopathno != 'NULL' GROUP BY naturopathno; which results in; COUNT(*) NATUROPATH 2 NP5 1 NP6 3 NP2 1 NP1 2 NP3 1 NP7 2 NP8 My question is, how would I go about selecting the highest count from this list, and printing that value with the naturopaths name? Any suggestions are very welcome, Brad

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• How to get distinct values from a column with all its corresponding values in another column

  - by Vishnu

  I know the question is bit confusing. Please read below. I have a table table_categories (id INT(11), cname VARCHAR(25),survey_id INT(11)) I want to retrieve the values for the column cname without duplication, that is distinct values but with all the values in the other column. id cname survey_id -- -------- --------- 1 Trader 2 2 Beginner 2 25 Human 1 26 Human 2 From the above example I want to retrieve distinct cnames with all the values of the survey_id. I don't want to use any programming language. Is there any way by using a single query. Please give me a solution in MySQL.

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• How to do a Postgresql subquery in select clause with join in from clause like SQL Server?

  - by Ricardo

  I am trying to write the following query on postgresql: select name, author_id, count(1), (select count(1) from names as n2 where n2.id = n1.id and t2.author_id = t1.author_id ) from names as n1 group by name, author_id This would certainly work on Microsft SQL Server but it does not at all on postegresql. I read its documentation a bit and it seems I could rewrite it as: select name, author_id, count(1), total from names as n1, (select count(1) as total from names as n2 where n2.id = n1.id and n2.author_id = t1.author_id ) as total group by name, author_id But that returns the following error on postegresql: "subquery in FROM cannot refer to other relations of same query level". So I'm stuck. Does anyone know how I can achieve that? Thanks

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• How to schedule daily backup in MSSQL Server 2008 Web Edition

  - by Xenon

  In MSSQL Management Studio I created a maintenance plan but it won't work Error is; "Message Executed as user: LITESPELL-19C34\Administrator. Microsoft (R) SQL Server Execute Package Utility Version 10.0.1600.22 for 32-bit Copyright (C) Microsoft Corp 1984-2005. All rights reserved. The SQL Server Execute Package Utility requires Integration Services to be installed by one of these editions of SQL Server 2008: Standard, Enterprise, Developer, or Evaluation. To install Integration Services, run SQL Server Setup and select Integration Services. The package execution failed. The step failed." But in Microsoft page http://www.microsoft.com/sqlserver/2008/en/us/web.aspx in Automate tasks and policies section it is written that backup can be scheduled in this edition but how?

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• How sophisticated should be DAL?

  - by Andrew Florko

  Basically, DAL (Data Access Layer) should provide simple CRUD (Create/Read/Update/Delete) methods but I always have a temptation to create more sophisticated methods in order to minimize database access roundtrips from Business Logic Layer. What do you think about following extensions to CRUD (most of them are OK I suppose): Read: GetById, GetByName, GetPaged, GetByFilter... e.t.c. methods Create: GetOrCreate methods (model entity is returned from DB or created if not found and returned), Create(lots-of-relations) instead of Create and multiple AssignTo methods calls Update: Merge methods (entities list are updated, created and deleted in one call) Delete: Delete(bool children) - optional children delete, Cleanup methods Where do you usually implement Entity Cache capabilities? DAL or BLL? (My choice is BLL, but I have seen DAL implementations also) Where is the boundary when you decide: this operation is too specific so I should implement it in Business Logic Layer as DAL multiple calls? I often found insufficient BLL operations that were implemented in dozen database roundtrips because developer was afraid to create a bit more sophisticated DAL. Thank you in advance!

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• GIS: When and why to use ArcObjects over GDAL programming to work with ArcGIS rasters and vectors?

  - by anotherobject

  Im just starting off with GDAL + python to support operations that cannot be done with ArcGIS python geoprocessing scripting. Mainly I am doing spatial modeling/analysis/editing of raster and vector data. I am a bit confused when ArcObject development is required versus when GDAL can be used? Is there functionality of ArcObjects that GDAL does not do? Is the opposite true too? I am assuming that ArcObjects are more useful in developing online tools versus Desktop analysis and modeling where the difference is more to do with preference? In my case i prefer GDAL because of python support, which I believe ArcObjects lack. thanks!

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