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Where does the @Transactional annotation belong?
Should you place the @Transactional in the DAO classes and/or their methods or is it better to annotate the Service classes which are calling using the DAO objects? Or does it make sense to annotate both "layers"?
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How do you force a makefile to rebuild a target
I have a makefile that builds and then calls another makefile. Since this makefile calls more makefiles that does the work it doesnt really change. Thus it keeps thinking the project is built and upto date.
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Override ActiveRecord attribute methods
...that the original poster specified (feeding the name to super) works fine, and IMHO is cleaner than manually writing the attribute as Aaron suggests.
– Batkins
Nov 23 '11 at 20:46
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Eclipse's Ctrl+click in Visual Studio?
...for a few days with Eclipse Java I totally got addicted to pressing Ctrl and clicking on an identifier to go to its definition. Since then I've been looking for a way to achieve this in Visual Studio as well.
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Opacity of background-color, but not the text [duplicate]
.../css-background-transparency-without-affecting-child-elements-through-rgba-and-filters/
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When should I use Kruskal as opposed to Prim (and vice versa)?
I was wondering when one should use Prim's algorithm and when Kruskal's to find the minimum spanning tree? They both have easy logics, same worst cases, and only difference is implementation which might involve a bit different data structures. So what is the deciding factor?
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How to download image from url
...emp\image35.png");
}
These methods are almost same as DownloadString(..) and DownloadStringAsync(...). They store the file in Directory rather than in C# string and no need of Format extension in URi
If You don't know the Format(.png, .jpeg etc) of Image
public void SaveImage(string filename, Im...
Add new field to every document in a MongoDB collection
...to add a new_field to all your collection, you have to use empty selector, and set multi flag to true (last param) to update all the documents
db.your_collection.update(
{},
{ $set: {"new_field": 1} },
false,
true
)
EDIT:
In the above example last 2 fields false, true specifies the upser...
How to RedirectToAction in ASP.NET MVC without losing request data
..."] to
System.Collections.Specialized.NameValueCollection
and use it */
}
return View("Form", viewData);
}
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How can I break up this long line in Python?
...r strings outside of the code that uses them. It's a way to separate data and behavior. Your first option is to join string literals together implicitly by making them adjacent to one another:
("This is the first line of my text, "
"which will be joined to a second.")
Or with line ending contin...