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How to implement the activity stream in a social network
...stream for any user and then grab the related data from the db as needed. Fall back to querying the db by time if the user needs to browse far back in time (if you even offer this)
I use a plain old MySQL table for dealing with about 15 million activities.
It looks something like this:
id ...
403 Forbidden vs 401 Unauthorized HTTP responses
...telling you, “you aren’t
authenticated–either not authenticated at all or authenticated
incorrectly–but please reauthenticate and try again.” To help you out,
it will always include a WWW-Authenticate header that describes how
to authenticate.
This is a response generally retu...
Understanding dispatch_async
... suggest but somehow, the uiTableViewCell doesn'tupdate right away when I call [self.tableView reloadData] in the Run UI Updates. It takes about 4 or 5 seconds. It's been driving me crazy for several days now.
– GrandSteph
Sep 16 '14 at 15:26
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Why is the Java main method static?
...c because otherwise there would be ambiguity: which constructor should be called? Especially if your class looks like this:
public class JavaClass{
protected JavaClass(int x){}
public void main(String[] args){
}
}
Should the JVM call new JavaClass(int)? What should it pass for x?
If not,...
Just what is an IntPtr exactly?
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It's a "native (platform-specific) size integer." It's internally represented as void* but exposed as an integer. You can use it whenever you need to store an unmanaged pointer and don't want to use unsafe code. IntPtr.Zero is effectively NULL (a null pointer).
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Why doesn't TFS get latest get the latest?
....microsoft.co.il/blogs/srlteam/archive/2009/04/13/how-get-latest-version-really-works.aspx
The only way to get it to do what you want is to Get Specific Version, then check both of the "Overwrite ..." boxes.
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How to calculate time elapsed in bash script?
...on doesn't depend on date +%s (which is a GNU extension), it's portable to all systems supported by Bash.
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How do DATETIME values work in SQLite?
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Important to note -- all the methods of storing dates use formats that can be compared using the standard =, <, > and BETWEEN operators.
– Larry Lustig
Dec 9 '15 at 18:19
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Calling C++ class methods via a function pointer
How do I obtain a function pointer for a class member function, and later call that member function with a specific object? I’d like to write:
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How to overlay one div over another div
... what I am finding now is that when I resize my window and drag it to be smaller, my info image is not staying with it's parent div. Basically want it to move with the parent div and stay pretty much at the same position even though the screen has been resized somewhat.
– tonyf...