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Mongodb Explain for Aggregation framework
...a if complicated aggregation gymnastics are required).
Taking advantage of newer aggregation operators if you have upgraded your MongoDB server. For example, MongoDB 3.4 added many new aggregation stages and expressions including support for working with arrays, strings, and facets.
There are also...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...ocal/lib/pkgconfig:$PKG_CONFIG_PATH"
to my ~/.bash_profile, sourcing the new profile, then running:
gem install rmagick
It worked for me after I did this.
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How do I get my Maven Integration tests to run
...ing the test execution would override it. As you explained, it just adds a new execution (thus everything would run twice). So for me the skip was missing piece. +1 As this configuration answers the question to 100%
– Nils Schmidt
Dec 10 '10 at 1:39
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Create objective-c class instance by name?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1174093%2fcreate-objective-c-class-instance-by-name%23new-answer', 'question_page');
}
);
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Migrating from JSF 1.2 to JSF 2.0
...config_2_0.xsd"
version="2.0">
Note: when you're using JSF 2.2 or newer, use the http://xmlns.jcp.org namespace domain instead of http://java.sun.com throughout the above XML snippet.
Ensure that root declaration of web.xml already complies at least Servlet 2.5. JSF 2.0 won't work on 2.4 or...
CSS3 selector :first-of-type with class name?
...iven other selector:
:nth-child(1 of p.myclass)
Previous drafts used a new pseudo-class, :nth-match(), so you may see that syntax in some discussions of the feature:
:nth-match(1 of p.myclass)
This has now been implemented in WebKit, and is thus available in Safari, but that appears to be the...
Comparing mongoose _id and strings
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@Zlatko i'm not a big fan of the new syntax but to each his own.
– r3wt
Jun 10 '16 at 4:09
2
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How to compare files from two different branches?
...e a diff of changes in master since it diverged from mybranch (but without new changes since then in mybranch).
In all cases, the -- separator before the file name indicates the end of command line flags. This is optional unless Git will get confused if the argument refers to a commit or a file, bu...
How do I change the color of the text in a UIPickerView under iOS 7?
... current text from UIPickerViewModel::GetTitle
NSAttributedString ns = new NSAttributedString (title, null, UIColor.White); // null = font, use current font
return ns;
}
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
... both foreign keys StudentID and ClassID are unique, what stops creating a new row with the same StudentID and ClassID ? as they are not unique in the code above. So you either implement it like the code above, or add a primary key that includes both StudentID and ClassID to avoid repetition of crea...