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how to generate migration to make references polymorphic
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As far as I know, there's no built-in generator for polymorphic associations. Generate a blank migration and then modify it by hand according to your needs.
Update:
You'll need to specify which table you're changing. According to this S...
How can I get the application's path in a .NET console application?
...hey need to be. Especially when we already have the information available. Now, if you are running a console application in such a way as to trick GetCommandLineArgs then you are already jumping through hoops and you would probably need to ask yourself if a console app is the right way to go.
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Java: Get last element after split
...dex = str.lastIndexOf('/');
String lastString = str.substring(index +1);
Now lastString has the value "directory"
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How to list files in a directory in a C program?
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it is ok now and so easy. Thanks for answer again.
– cemal
Nov 17 '10 at 13:33
13
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How to quickly clear a JavaScript Object?
...doesn't do garbage collection later will be.
This is the best solution. I know it's not related to your question - but for how long do we need to continue supporting IE6? There are many campaigns to discontinue the usage of it.
Feel free to correct me if there's anything incorrect above.
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How to get the groups of a user in Active Directory? (c#, asp.net)
... }
}
}
return result;
}
and that's all there is! You now have a result (a list) of authorization groups that user belongs to - iterate over them, print out their names or whatever you need to do.
Update: In order to access certain properties, which are not surfaced on the User...
Generating PDF files with JavaScript
...uestion before I started writing it and thought I'd come back and let you know :)
Generate PDFs in Javascript
Example create a "Hello World" PDF file.
// Default export is a4 paper, portrait, using milimeters for units
var doc = new jsPDF()
doc.text('Hello world!', 10, 10)
doc.save('a4.p...
Why does `a == b or c or d` always evaluate to True?
...integer as True.
In [11]: if 3:
...: print ("yey")
...:
yey
Now, Python builds on that logic and let you use logic literals such as or on integers, and so
In [9]: False or 3
Out[9]: 3
Finally
In [4]: a==b or c or d
Out[4]: 3
The proper way to write it would be:
In [13]: if a i...
What do ellipsis […] mean in a list?
... p which contains p ... and so on. The [...] notation is a way to let you know this, and to inform that it can't be represented! Take a look at @6502's answer to see a nice picture showing what's happening.
Now, regarding the three new items after your edit:
This answer seems to cover it
Ignacio'...
How can I sort arrays and data in PHP?
...ion. The above sort and related functions work on simple values that they know how to compare and sort. PHP does not simply "know" what to do with a complex value like array('foo' => 'bar', 'baz' => 42) though; so you need to tell it.
To do that, you need to create a comparison function. That ...