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Build custom error messages in model files (example: using the 'pluralize' method)

- by user502052

I am using Ruby on Rails 3.0.7 and I would like to use the pluralize method in a my model file in order to properly build custom error messages. For example, I would like to do something like the following: NAME_MIN_LENGHT = 2 # Is 2 but I plan to change that (maybe dynamically... if it is possible) in future development validates :name, …

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Complicated parsing in python

- by Quazi Farhan

I have a weird parsing problem with python. I need to parse the following text. Here I need only the section between(not including) "pre" tag and column of numbers (starting with 205 4 164). I have several pages in this format. <html> <pre> A Short Study of Notation Efficiency CACM August, 1960 Smith Jr., H. J. CA600802…

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What is the performance impact of tracing in C# and ASP.NET?

- by SkippyFire

I found this in some production login code I was looking at recently... HttpContext.Current.Trace.Write(query + ": " + username + ", " + password)); ...where query is a short SQL query to grab matching users. Does this have any sort of performance impact? I assume its very small. Also, what is the purpose of this exact type of trace,…

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Shallow Copy in Java

- by Vilius

Hello there! I already know, what a shallow copy is, but I'm not able to impliment it. Here's a short example. public class Shallow { String name; int number; public Shallow (String name, int number) { this.name = name; this.number = number; } } Test the implementation ... public class ShallowTest { public static void main…

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Doing a join across two databases with different collations on SQL Server and getting an error.

- by Andrew G. Johnson

I know, I know with what I wrote in the question I shouldn't be surprised. But my situation is slowly working on an inherited POS system and my predecessor apparently wasn't aware of JOINs so when I looked into one of the internal pages that loads for 60 seconds I see that it's a fairly quick, rewrite these 8 queries as one query…

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Displaying current time above the thumb of a slider in Silverlight

- by Scharrels

I've made a time slider in Silverlight. To style it, I've made a control template and modified the style. I've added a text field above the thumb (always centered above the thumb), which should display the time. However, I can't find any way to access the slider information (e.g. current value) or find another way to pass any…

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Java preferences API throughput

- by Domchi

I'm using Java Preferences API to store window position and size of Swing application. At this moment, I'm listening to window resize/reposition events and storing the position and size every time they change. However, that means that if user slowly resizes window which is 200px wide to 400px wide, I'll probably write new…

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Seam Equivalent of Spring PersistenceUnitPostProcessor

- by shipmaster

We have a very comfortable setup using JPA through Spring/Hibernate, where we attach a PersistenceUnitPostProcessor to our entity manager factory, and this post processor takes a list of project names, scans the classpath for jars that contain that name, and adds those jar files for scanning for entities to the…

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How to put/get INT to/from a WCHAR array ?

- by nimo

how can I put a INT type variable to a wchar array ? Thanks EDIT: Sorry for the short question. Yes we can cast INT to a WCHAR array using WCHAR*, but when we are retrieving back the result (WCHAR[] to INT), I just realize that we need to read size of 2 from WCHAR array since INT is 4 BYTEs which is equal to…

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Smiley Replace within CDATA of an HTML-String

- by michaelm

Hello, i have got a simple problem :( I need to replace text smilies with the according smiley-image. ok.. thats not really complex, but now i have to replace only smilie appereances outside of HTML Tags. short examplae: Text: Thats a good example :/ .. with a <a…

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update columns when value is numeric in tsql

- by knittl

i want to normalize date fields from an old badly designed db dump. i now need to update every row, where the datefield only contains the year. update table set date = '01.01.' + date where date like '____' and isnumeric(date) = 1 and date >= 1950 but this will…

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Avoid hourglass mouse cursor when calling a web-service?

- by BigMoose

I don't know if this is a general web-services issue or just my specific scenario, which is a WPF application with a DispatcherTimer calling a web-service method. Whenever the timer is called, the mouse cursor automatically changes to an hourglass cursor. The…

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importing CELERY* environment variables in django settings.py causes celeryd not to start

- by Taras

I just spent 2 hours trying to figure out why django celery stopped working. Celery would being to start, but would stop short of printing out the configuration items, implying that it wasn't starting correct. The log would only contain The…

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Automatically minifying attribute/element names when using XmlSerializer

- by frou

When serializing a C# class using XmlSerializer, the attributes/elements representing the properties of the class will have the same names as they do in the source code. I know you can override this by doing like so: [XmlAttribute("num")]…

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fuzzy DISTINCT Values

- by user982853

I have a database of real estate listings and need to return a list of neighborhoods. Right now I am using mysql DISTINCT which returns all of the distinct values. My probelm is that there is a lot of neighborhoods that have similar names:…

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What are some exciting, fun, and educational Computer Science activities for students?

- by Nixuz

I am a volunteer for Let's Talk Science, an organization which places science graduate students into elementary school and high school classrooms to present short, fun, yet educational demonstrations or experiments related to their…

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Tool used to retrieve code metrics in xUnit Test Patterns?

- by leeand00

I'm reading xUnit Test Patterns by Gerard Meszaros. On one of the pages he refers to some software metrics: While the need to wrap lines to keep them at 65 characters makes this code look even longer than it really is,…

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Caching the repository index in m2eclipse

- by Titi Wangsa bin Damhore

everytime i start with a fresh new workspace, m2eclipse downloads nexus-maven-repository-index.gz from the maven central repository. this is good. but, some times, i just want to start a new workspace, and not wait for it to…

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C# Speech Recognition - Is this what the user said?

- by RichieACC

I have need to write an application which uses a speech recognition engine -- either the built in vista one, or a third party one -- that can display a word or phrase, and recognise when the user reads it (or an…

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Software version numbering with GIT

- by revocoder revocorp

Short Want to set automatic (or at least semi-auto) software version numbering in GIT Detailed I'm newby to GIT. Recently created some bare git repo and made some commits and pushes into it. Want to set some…

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c++ library for endian-aware reading of raw file stream metadata?

- by Kache4

I've got raw data streams from image files, like: vector<char> rawData(fileSize); ifstream inFile("image.jpg"); inFile.read(&rawData[0]); I want to parse the headers of different image formats for…

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Naming suggestions for a function returning parent prototype

- by hevalbaranov

I'm having a naming trouble with a function which returns parent prototype of specified object. It's being used like this: # Pseudo Code MyClass { super(MyClass,this).constructor.call(.... The problem is…

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Xcode Tips for Eclipse users?

- by willcodejavaforfood

Hi, I've been slowly working my way through the examples in Beginning iPhone Development and there are a few things that I have not been able to figure out, but I'm sure you guys can help me with it. In…

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Prolog - Finding the current directory, relative directory for 'tell' predicate

- by Bharat

I'm having trouble trying to figure out how to get prolog to spit out a text file where I want it to. I'm currently doing a bunch of operations and then using tell('output.txt') to record the output.…

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PHP preg_replace() pattern, string sanitization.

- by Otar

I have a regex email pattern and would like to strip all but pattern-matched characters from the string, in a short I want to sanitize string... I'm not a regex guru, so what I'm missing in regex? …

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