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How do you delete an ActiveRecord object?
...like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition: ...
Convert integer to string Jinja
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answered Oct 3 '13 at 15:06
Glen SwiftGlen Swift
10.7k1313 gold badges4141 silver badges6868 bronze badges
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How to find Array length inside the Handlebar templates?
...;
{{/each}}
</ul>
Would yield:
<ul>
<li>apple 0 3</li>
<li>orange 1 3</li>
<li>banana 2 3</li>
</ul>
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Python strftime - date without leading 0?
When using Python strftime , is there a way to remove the first 0 of the date if it's before the 10th, ie. so 01 is 1 ? Can't find a % thingy for that?
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Save and load MemoryStream to/from a file
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answered Dec 24 '11 at 11:02
adatapostadatapost
88.5k1818 gold badges137137 silver badges175175 bronze badges
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How to print a list of symbols exported from a dynamic library
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man 1 nm
https://web.archive.org/web/20160316222941/https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/nm.1.html
For example:
nm -gU /usr/local/Cellar/cairo/1.12.16/lib/cairo/libcairo-trace.0.dylib
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Determine installed PowerShell version
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+50
Use $PSVersionTable.PSVersion to determine the engine version. If the variable does not exist, it is safe to assume the engine is vers...
Best content type to serve JSONP?
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answered Sep 21 '08 at 16:06
John MillikinJohn Millikin
178k3636 gold badges199199 silver badges215215 bronze badges
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How to compare two dates?
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505
Use the datetime method and the operator < and its kin.
>>> from datetime import d...
git update-index --assume-unchanged on directory
...roblematic. If you have those, you can use this:
git ls-files -z | xargs -0 git update-index --assume-unchanged
Edit: incorporated input from @MatthewScharley regarding git ls-files -z.
Windows Commands
Note: If you're on windows, use Git Bash to run these commands
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