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Ruby on Rails: how do I sort with two columns using ActiveRecord?
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Assuming you're using MySQL,
Model.all(:order => 'DATE(updated_at), price')
Note the distinction from the other answers. The updated_at column will be a full timestamp, so if you want to sort based on the day it was updated, you need to use a function to ...
Need to list all triggers in SQL Server database with table name and table's schema
I need to list all triggers in SQL Server database with table name and table's schema.
19 Answers
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Merging between forks in GitHub
... You need to pull from the one remote and push to the other.
If you originally cloned from your fork, that remote will be called "origin". If you haven't added it already, you'll need to add the first person's repository as another remote:
git remote add firstrepo git://github.com/first/repo.git
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The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat
What is this error all about, and how would I go about solving it?
14 Answers
14
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Catching error codes in a shell pipe
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If you really don't want the second command to proceed until the first is known to be successful, then you probably need to use temporary files. The simple version of that is:
tmp=${TMPDIR:-/tmp}/mine.$$
if ./a > $tmp.1
then
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Java Singleton and Synchronization
...e loaded when it is needed. That means that the first time getInstance is called, InstanceHolder will be loaded and instance will be created, and since this is controlled by ClassLoaders, no additional synchronization is necessary.
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How can I see what has changed in a file before committing to git?
...diff works recursively on directories, and if no paths are given, it shows all changes.
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Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
... of events up in another page, the API itself is tremendously helpful, and all of what I'm discussing below is linked directly from this page.
First, .click(function) is literally a shortcut for .bind('click', function), they are equivalent. Use them when binding a handler directly to an element, ...
The application was unable to start correctly (0xc000007b)
...at you should run the 32 bit version of dependency walker, and ensure that all loaded DLLs are 32 bit. If you try to run the 64 bit version dependency walker, it will happily load the 64 bit DLLs, such as VCRedist, even if your also have their 32 bit versions.
– liorda
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What order are the Junit @Before/@After called?
I have an Integration Test Suite. I have a IntegrationTestBase class for all my tests to extend. This base class has a @Before ( public void setUp() ) and @After ( public void tearDown() ) method to establish API and DB connections. What I've been doing is just overriding those two methods in ...