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SQL command to display history of queries
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edited Jun 10 '14 at 6:36
Baby Groot
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Rails: select unique values from a column
...rails 5+
Model.distinct.pluck(:rating)
Update
Apparently, as of rails 5.0.0.1, it works only on "top level" queries, like above. Doesn't work on collection proxies ("has_many" relations, for example).
Address.distinct.pluck(:city) # => ['Moscow']
user.addresses.distinct.pluck(:city) # => [...
What is a StackOverflowError?
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edited Jun 16 '19 at 20:25
Tom
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Test if object implements interface
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580
if (object is IBlah)
or
IBlah myTest = originalObject as IBlah
if (myTest != null)
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Comet and jQuery [closed]
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answered Sep 26 '08 at 0:17
Morgan ARR AllenMorgan ARR Allen
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Search for string and get count in vi editor
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answered Apr 3 '09 at 20:43
Kevin BeckKevin Beck
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How do I add a bullet symbol in TextView?
...You could try with •
Update
Just to clarify: use setText("\u2022 Bullet"); to add the bullet programmatically. 0x2022 = 8226
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How to detect input type=file “change” for the same file?
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answered Nov 7 '10 at 15:14
BrunoLMBrunoLM
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How to install lxml on Ubuntu
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edited Apr 2 '14 at 23:30
Stephen Fuhry
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