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What is the best way to uninstall gems from a rails3 project?
I installed all of my gems using bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems.
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How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails
...query has been issued, but I'm wondering if there is a method that can be called on and ActiveRecord Query.
11 Answers
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jQuery - Get Width of Element when Not Visible (Display: None)
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@Tim Banks very nice! I actually wrote a similar extension. What i've been noticing is very strange behavior in Firefox, width() returns 0, for your and my plugin both. And on top of that it never factors in padding. jsfiddle.net/67cgB. I'm having the ...
Extract source code from .jar file
...ct source code when the jar contains java files, e.g. jars with names typically ending in "-sources". It indeed does only extract .class files when the jar does not contain any java source files.
– edwardmp
May 2 '16 at 9:04
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How to initialise a string from NSData in Swift
...ar swiftString = NSString(data: NSData!, encoding: UInt) as! String that's all
– Gintama
Aug 29 '15 at 6:52
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When does static class initialization happen?
...tialized? If I never instantiate a class, but I access a static field, are ALL the static blocks and private static methods used to instantiate private static fields called (in order) at that instant?
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How to pass objects to functions in C++?
...ne whether to pass by const reference or not.)
Passing by pointer is virtually never advised. Optional parameters are best expressed as a std::optional (boost::optional for older std libs), and aliasing is done fine by reference.
C++11's move semantics make passing and returning by value much more ...
How do you effectively model inheritance in a database?
...s:
Table-Per-Type (TPT)
Each class has its own table. The base class has all the base class elements in it, and each class which derives from it has its own table, with a primary key which is also a foreign key to the base class table; the derived table's class contains only the different elements...
Create batches in linq
...e into sized buckets (MoreLINQ is available as a NuGet package you can install):
int size = 10;
var batches = sequence.Batch(size);
Which is implemented as:
public static IEnumerable<IEnumerable<TSource>> Batch<TSource>(
this IEnumerable<TSource> source,...
Do git tags get pushed as well?
...e not pushed to the repository. When I do git tag on the
local directory all the tags are present, but when I logon to the
remote repository and do a git tag , only the first few show up.
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