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MongoDB: update every document on one field
...our example, the <update> is:
{ $set: { lastLookedAt: Date.now() / 1000 } }
However, depending on your version of MongoDB, the query will look different. Regardless of version, the key is that the empty condition {} will match any document. In the Mongo shell, or with any MongoDB client:
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Comparing two CGRects
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edited Nov 26 '14 at 22:27
Johannes Fahrenkrug
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How to tell Xcode where my info.plist and .pch files are
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I know this answer is answered and closed, but I'm going to add my discoveries here as it is s...
Git submodule push
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A submodule is nothing but a clone of a git repo within another repo with some extra meta data...
Elegant method to generate array of random dates within two dates
...th.random() * (end.getTime() - start.getTime()));
}
randomDate(new Date(2012, 0, 1), new Date())
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What's the difference of $host and $http_host in Nginx
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Devise form within a different controller
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answered Jun 18 '11 at 0:48
Rupert Madden-AbbottRupert Madden-Abbott
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How do you rename a table in SQLite 3.0?
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ALTER TABLE `foo` RENAME TO `bar`
SQLite Query Language: ALTER TABLE
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Purpose of “consider_all_requests_local” in config/environments/development.rb?
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Non-local requests result in user-friendly error pages. Local requests, assumed to come from ...
How does inheritance work for Attributes?
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When Inherited = true (which is the default) it means that the attribute you are creating can ...