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Implementing comparison operators via 'tuple' and 'tie', a good idea?
... clearer. So I go back to writing the structs myself, including any needed comparision operators.
Since especially the operator< can be quite cumbersome, I thought of circumventing this whole mess by just relying on the operations defined for tuple :
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Very simple log4j2 XML configuration file using Console and File appender
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For completeness, use of immediateFlush="false" is especially recommended when using Async Loggers or AsyncAppender.
– Remko Popma
Jan 19 '14 at 2:33
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Django “login() takes exactly 1 argument (2 given)” error
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How to select where ID in Array Rails ActiveRecord without exception
...he "find_all_by.." family of functions works without throwing exceptions.
Comment.find_all_by_id([2, 3, 5])
will work even if some of the ids don't exist. This works in the
user.comments.find_all_by_id(potentially_nonexistent_ids)
case as well.
Update: Rails 4
Comment.where(id: [2, 3, 5])
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How do I get logs/details of ansible-playbook module executions?
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If you pass the -v flag to ansible-playbook on the command line, you'll see the stdout and stderr for each task executed:
$ ansible-playbook -v playbook.yaml
Ansible also has built-in support for logging. Add the following lines to your ansible configuration file:
[defaul...
Change working directory in my current shell context when running Node script
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Oops. Ya, that is the command I am actually using. However, when I use it in a simple script it still does not seem to work (once the script exits I am still in the old directory) If I call process.cwd() it says I am in the directory I should be ...
How to make a select with array contains value clause in psql
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65
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How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?
...riginal QuerySet, the original results are grouped
according to the unique combinations of the fields specified in the
values() clause"
annotate() : specifies an operation over the grouped values
Django docs:
The second way to generate summary values is to generate an independent summary for each ...
Type of conditional expression cannot be determined because there is no implicit conversion between
Why does this not compile?
4 Answers
4
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Delete directories recursively in Java
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You should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
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