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Rails 3 check if attribute changed

... Sure it does. If you assign the values using the params hash, these have come from the form. – Peter Brown Jan 29 '13 at 20:27 ...
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Reading an Excel file in PHP [closed]

...:- WriteToXlsFile() will write data based on row and column numbers * @Param:- $CellData- cell data * @Param:- $RowNumber- xlsx file row number * @Param:- $ColumnNumber- xlsx file column numbers ************************************************************************************/ f...
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How to document a string type in jsdoc with limited possible values

I am having a function that accepts one string parameter. This parameter can have only one of a few defined possible values. What is the best way to document the same? Should shapeType be defined as enum or TypeDef or something else? ...
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How to debug PDO database queries?

...d use var_dump (or an equivalent) just after, to display the values of the parameters This is generally enough to see a possible error, even if you don't have any "real" query that you can execute. This is not great, when it comes to debugging -- but that's the price of prepared statements and the...
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How to iterate through SparseArray?

...t;E> array; private int cursor; private boolean cursorNowhere; /** * @param array * to iterate over. * @return A ListIterator on the elements of the SparseArray. The elements * are iterated in the same order as they occur in the SparseArray. * {@link #nextIndex()}...
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How to pass boolean values to a PowerShell script from a command prompt

...hat powershell.exe does not fully evaluate script arguments when the -File parameter is used. In particular, the $false argument is being treated as a string value, in a similar way to the example below: PS> function f( [bool]$b ) { $b }; f -b '$false' f : Cannot process argument transformation ...
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How to make an immutable object in Python?

...variant compared to hand-written analog (even on Python 2.5 (using verbose parameter to namedtuple the code is easily generated)) is the single interface/implementation of a namedtuple is preferrable to dozens ever so slightly different hand-written interfaces/implementations that do almost the sam...
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Parallel foreach with asynchronous lambda

...y Executes async actions for each item of <see cref="IEnumerable<typeparamref name="T"/> /// </summary> /// <typeparam name="T">Type of IEnumerable</typeparam> /// <param name="enumerable">instance of <see cref="IEnumerable<typeparamref name="T"/&gt...
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Get output parameter value in ADO.NET

My stored procedure has an output parameter: 8 Answers 8 ...
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How to accept Date params in a GET request to Spring MVC Controller?

...hod=RequestMethod.GET) public @ResponseBody String fetchResult(@RequestParam("from") @DateTimeFormat(pattern="yyyy-MM-dd") Date fromDate) { //Content goes here } Yes, it's simple. Just add the DateTimeFormat annotation. ...