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How can I recover a removed file in Mercurial (if at all)?
...grep to find the deleted file you wish to recover. The output of this command will show you the last revision for which the file was present, and the path to the deleted file.
Second, run hg revert -r <revision number> <path to deleted file>
The deleted file will now be in your working ...
Spring Test & Security: How to mock authentication?
...ntrollers are properly secured. Just in case someone changes things around and accidentally removes security settings.
7 A...
Is it possible to include a file in your .gitconfig
...th = /path/to/file
See here for a detailed description of the git change and its edge cases.
By the way, a couple of subtleties worth pointing out:
Environment-variable expansion, e.g. $HOME, is not supported. (Expansion of ~ appeared in Git 1.7.10.2.)
If a relative path is specified, then it i...
git log of a single revision
...it c. I want to get the changeset of that exact commit c + metainformation and no other one. Is there a simpler way than git log -p c^..c to do that?
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Stop the 'Ding' when pressing Enter
I have a very simple Windows Forms Application. And, in Windows (or, atleast Windows Forms Applications), when you press Enter while inside a Single-line TextBox Control, you hear a Ding. It's an unpleasent sound, that indicated you cannot enter a newline, because it is a single-line TextBox.
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PostgreSQL error: Fatal: role “username” does not exist
...en done with operating as system user postgres.
Or execute the single command createuser as postgres with sudo, like demonstrated by drees in another answer.
The point is to use the operating system user matching the database role of the same name to be granted access via ident authentication. pos...
Python equivalent for PHP's implode?
Is there an equivalent for PHP's implode in Python? I've read in and split up a set of delimited words, and now I want to sort them out in random orders and print the words out with spaces in between.
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How do I convert from BLOB to TEXT in MySQL?
...lot of records where text has been stored in a blob in MySQL. For ease of handling I'd like to change the format in the database to TEXT... Any ideas how easily to make the change so as not to interrupt the data - I guess it will need to be encoded properly?
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JPA eager fetch does not join
... JPA's fetch strategy control? I can't detect any difference between eager and lazy. In both cases JPA/Hibernate does not automatically join many-to-one relationships.
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MongoDB - Update objects in a document's array (nested updating)
...rue);
For your question #2, the answer is easier. To increment the total and the price of item_three in any document that contains "my_item_three," you can use the $inc operator on multiple fields at the same time. Something like:
db.bar.update( {"items.item_name" : {$ne : "my_item_three" }} ,
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