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How does Rails keep track of which migrations have run for a database?
...ith a version of 20120620193144 into the schema_migrations table.
You are free at any point to introduce migrations with earlier versions. Rails will always run any new migrations for which there is not a corresponding row in schema_migrations. The leading digits don't have to be a timestamp, you c...
Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the
...ut unless you're running git gc automatically this should be a fairly risk free approach. I would still go with babay's answer, but if you want to save yourself from writing two extra commands I guess this is the way to go.
– Erik B
Jul 8 '13 at 13:32
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Error during installing HAXM, VT-X not working
...p continued and the Genymotion simulator runs successfully. Genymotion is free for personal use.
This was on a Lenova T430 laptop.
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Using port number in Windows host file
... DNS" in the hosts file as a new line
127.65.43.21 example.app
Any free address in the network 127.0.0.0/8 (127.x.x.x) can be used.
Note: I am assuming 127.65.43.21:80 is not occupied by another service.
You can check with netstat -a -n -p TCP | grep "LISTENING"
added the following network...
How to fix Error: listen EADDRINUSE while using nodejs?
...command which performs a clean exit.
Exiting a process the right way will free up that port while shutting down. This will allow you to restart the process without going through the trouble of killing it yourself before being able to re-run it again.
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Is there a working C++ refactoring tool? [closed]
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... the purpose of DMS is enable the coding and error-free application of code transformations, whether "refactoring" or "not". Yes, its hard and we aren't there yet. We're closer IMNSHO than any other tool I've seen for C++, and there's nothing wrong with our tool foundation...
Reading CSV files using C#
... and well-tested:
FileHelpers:
www.filehelpers.net
The FileHelpers are a free and easy to use .NET library to import/export data from fixed length or delimited records in files, strings or streams.
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Skip callbacks on Factory Girl and Rspec
....skip_callback(:commit, :after, :whatever_callback, raise: false) }
Feel free to use it with whatever other strategies you prefer.
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Proper way to make HTML nested list?
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Importantly this allows free form editing for a group of bullets, giving it a more intuitive feel. As a user, if I have a list of bullets I might want to indent them and nest them under a new bullet. Without the ability to indent to arbitrarily the...
How to set Java environment path in Ubuntu
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Set PATH as follows:
export PATH=$PATH:/usr/java/jdk1.5.0_07/bin
Feel free to replace /usr/java/jdk1.5.0_07 as per your setup. Save and close the file. Just logout and login back to see new changes. Alternatively, type the following command to activate the new path settings immediately:
$ sour...