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What is causing this ActiveRecord::ReadOnlyRecord error?
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Rails 2.3.3 and lower
From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the ...
How can I reverse a NSArray in Objective-C?
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305
For obtaining a reversed copy of an array, look at danielpunkass' solution using reverseObjectE...
Convert SQLITE SQL dump file to POSTGRESQL
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101
You should be able to feed that dump file straight into psql:
/path/to/psql -d database -U user...
What's the difference between the build and create methods in FactoryGirl?
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answered Jan 4 '13 at 21:03
Helio SantosHelio Santos
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Why are two different concepts both called “heap”?
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answered Nov 9 '09 at 4:47
James McNellisJames McNellis
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Difference between Python's Generators and Iterators
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answered May 5 '10 at 21:19
Alex MartelliAlex Martelli
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Git diff between current branch and master but not including unmerged master commits
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edited May 23 '17 at 12:03
Community♦
111 silver badge
answered Dec 27 '13 at 23:35
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Setting an object to null vs Dispose()
...tringBuilder are already eligible
// for garbage collection here!
int y = 10;
DoSomething(y);
// These aren't helping at all!
x = null;
sb = null;
// Assume that x and sb aren't used here
The one time where it may be worth setting a local variable to null is when you're in a loop, and some branc...
Bundler: Command not found
I am hosting on a vps, ubuntu 10.04, rails 3, ruby and mysql installed correctly by following some tutorials. If I run bundle check or bundle install I get the error '-bash: bundle: command not found'. From gem list --local I see 'bundler (1.0.2, 1.0.0)' is installed.
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Inherit docstrings in Python class inheritance
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answered Jan 8 '10 at 4:51
John FeminellaJohn Feminella
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