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find() with nil when there are no records
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173
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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Using Predicate in Swift
... ChuckChuck
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Copy/duplicate database without using mysqldump
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edited Dec 12 '15 at 23:54
Xavi Montero
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answ...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
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13 Answers
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Argument list too long error for rm, cp, mv commands
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edited May 21 '18 at 16:34
Triforcey
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answered Jul 2 '12 at 7:44
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Regular expression to search for Gadaffi
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139
\b[KGQ]h?add?h?af?fi\b
Arabic transcription is (Wiki says) "Qaḏḏāfī", so maybe adding a ...
clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
... this problem with updated system Pythons (2.7, 2.6, and 2.5) in OS X 10.9.3 so the workaround is no longer necessary when using the latest Mavericks and Xcode 5.1+. However, as of now, the workaround is still required for OS X 10.8.x (Mountain Lion, currently 10.8.5) if you are using Xcode 5.1+ th...
Is it possible for git-merge to ignore line-ending differences?
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Update 2013:
More recent git versions authorize using merge with strategy recursive and strategy option (-X):
from "Git Merge and Fixing Mixed Spaces and Tabs with two Branches":
git merge -s recursive -Xignore-space-at-eol
But usi...
What's the purpose of git-mv?
...for git mv oldname newname (see this answer).
– Ajedi32
Jun 11 '14 at 21:28
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Note that git mv is...
How to convert an enum type variable to a string?
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