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Undo scaffolding in Rails
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First, if you have already run the migrations generated by the scaffold command, you have to perform a rollback first.
rake db:rollback
You can create scaffolding using:
rails generate scaffold MyFoo
(or similar), and you can...
Remove HTML tags from a String
... removing HTML tags against a customizable whitelist, which is very useful if you want to allow only e.g. <b>, <i> and <u>.
See also:
RegEx match open tags except XHTML self-contained tags
What are the pros and cons of the leading Java HTML parsers?
XSS prevention in JSP/Servlet w...
Throw keyword in function's signature
...ble. And it is not well supported in any case. (MSVC ignores exception specifications, except throw(), which it interprets as a guarantee that no exception will be thrown.
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When to use @QueryParam vs @PathParam
I am not asking the question that is already asked here:
What is the difference between @PathParam and @QueryParam
14 Answ...
@Transactional(propagation=Propagation.REQUIRED)
if some one can explain what this annotation do and when exactly we use it :
4 Answers
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How to round a number to n decimal places in Java
... convert a double to a string which rounds using the half-up method - i.e. if the decimal to be rounded is 5, it always rounds up to the next number. This is the standard method of rounding most people expect in most situations.
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Is there a .NET equivalent to Apache Hadoop? [closed]
...roach is often the best and it looks like other folks are doing the same.
If you look at projects like protocol-buffers or facebook's thrift you see that sometimes it's just best to use an app written in another language and build the glue in the language of your preference.
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This Handler class should be static or leaks might occur: IncomingHandler
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If IncomingHandler class is not static, it will have a reference to your Service object.
Handler objects for the same thread all share a common Looper object, which they post messages to and read from.
As messages contain ...
What is the difference between IEqualityComparer and IEquatable?
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Same difference is between IComparable / IComparer
– boctulus
Jan 19 '15 at 21:22
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What is the difference between Session.Abandon() and Session.Clear()
What is the difference between destroying a session and removing its values? Can you please provide an example demonstrating this?
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