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How to implement the factory method pattern in C++ correctly
...een making me feel uncomfortable for quite a long time, because I honestly don't know how to do it, even though it sounds simple:
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INSERT IF NOT EXISTS ELSE UPDATE?
I've found a few "would be" solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
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How do I put an already-running process under nohup?
I have a process that is already running for a long time and don't want to end it.
11 Answers
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HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK
...EER -> false). Your either add the CA cert of the site you're trying to do SSL with, or you disable CA verfification. Those are the only two options available.
– Marc B
Jun 19 '11 at 16:29
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Why all the Active Record hate? [closed]
...pany_id, and automatically generates associated Company objects so you can do people.first.company and it doesn't need to hit the database because the data is already present.
@pix0r
The inherent problem with Active Record is that database queries are automatically generated and executed to...
Given a DateTime object, how do I get an ISO 8601 date in string format?
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These days, doing that (trying to render a UTC time with an offset, which doesn't make a lot of sense) throws an exception. So, I agree with the others that the "s" format with the invariant culture is probably more correct. FYI the fo...
Is either GET or POST more secure than the other?
...far as security, they are inherently the same. While it is true that POST doesn't expose information via the URL, it exposes just as much information as a GET in the actual network communication between the client and server. If you need to pass information that is sensitive, your first line of de...
iOS 7: UITableView shows under status bar
... the properties for Under top bars and Adjust scroll view insets which do actually stop it from scrolling under, but at the cost of keeping the top of the table view under. I've attempted to set the UITableView frame to offset by 20 pixels, but it doesn't appear to take effect and as I current...
When do Java generics require
...u to http://www.angelikalanger.com/GenericsFAQ/JavaGenericsFAQ.html -- she does an amazing job.
The basic idea is that you use
<T extends SomeClass>
when the actual parameter can be SomeClass or any subtype of it.
In your example,
Map<String, Class<? extends Serializable>> ex...
How to parse a CSV file in Bash?
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You need to use IFS instead of -d:
while IFS=, read -r col1 col2
do
echo "I got:$col1|$col2"
done < myfile.csv
Note that for general purpose CSV parsing you should use a specialized tool which can handle quoted fields with internal commas, among other issues that Bash can't handle...