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Determine if ActiveRecord Object is New
How can I check if an ActiveRecord object is new or is already persisted?
2 Answers
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I lost my .keystore file?
Ok folks.. long story short, I was developing on a computer that I no longer have access to. I was able to retrieve the source code, but not the .keystore file used to sign and publish my application to the market (with several updates). Am I, and my poor users, out of luck if I ever want to update?...
Concatenate multiple files but include filename as section headers
I would like to concatenate a number of text files into one large file in terminal. I know I can do this using the cat command. However, I would like the filename of each file to precede the "data dump" for that file. Anyone know how to do this?
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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
Looking for quick, simple way in Java to change this string
29 Answers
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Xcode is not currently available from the Software Update server
I have problems with my macport after update to OS X 10.9.
13 Answers
13
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What good are SQL Server schemas?
I'm no beginner to using SQL databases, and in particular SQL Server. However, I've been primarily a SQL 2000 guy and I've always been confused by schemas in 2005+. Yes, I know the basic definition of a schema, but what are they really used for in a typical SQL Server deployment?
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git: Your branch is ahead by X commits
How does this actually come about?
18 Answers
18
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What is a user agent stylesheet?
I'm working on a web page in Google Chrome. It displays correctly with the following styles.
13 Answers
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Getting realtime output using subprocess
I am trying to write a wrapper script for a command line program (svnadmin verify) that will display a nice progress indicator for the operation. This requires me to be able to see each line of output from the wrapped program as soon as it is output.
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How to run a function when the page is loaded?
I want to run a function when the page is loaded, but I don’t want to use it in the <body> tag.
8 Answers
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