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How to display unique records from a has_many through relationship?
...through => :orders, :uniq => true is deprecated. Instead, you should now write has_many :products, -> { distinct }, through: :orders. See the distinct section for has_many: :through relationships on the ActiveRecord Associations documentation for more information. Thanks to Kurt Mueller fo...
How to Define Callbacks in Android?
...{
Log.v("","EVENT FIRED");
}
});
If you want to know more about communication (callbacks) between fragments see here:
http://developer.android.com/guide/components/fragments.html#CommunicatingWithActivity
...
Declaring and initializing variables within Java switches
...on is.)
If you comment out the value = 2; assignment, the compiler still knows which variable you're referring to, but you won't have gone through any execution path which assigns it a value, which is why you get an error as you would when you try to read any other not-definitely-assigned local var...
In Intellij, how do I toggle between camel case and underscore spaced?
...ndoing any changes. Update: it appears this bug has been fixed for a while now, so the CamelCase plugin is probably the way to go.
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What's the best way to refactor a method that has too many (6+) parameters?
...sn't get you much; the goal is to have groupings that make sense. You'll know you got it right when the name of the new type is obvious.
Look for other places where these values are used together, and use the new type there, too. Chances are, when you've found a good new type for a set of values t...
String concatenation: concat() vs “+” operator
...ring cat(String a, String b) {
a += b;
return a;
}
}
Now disassemble with javap -c (included in the Sun JDK). You should see a listing including:
java.lang.String cat(java.lang.String, java.lang.String);
Code:
0: new #2; //class java/lang/StringBuilder
3: dup
...
Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
...
I'm just glad to know that I'm not going crazy :) I've since updated my code to only rely on TryParse, so I'm set for now. Thanks for your insight!
– Brandon Martinez
Apr 30 '13 at 17:39
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How to manually set an authenticated user in Spring Security / SpringMVC
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Thank you, the code is very helpful in helping me know that I'm troubleshooting in the right area. Looks like I have a smoking gun, it's creating a new session id after the manual authentication, but the old session id is still being identified from the cookie. Gotta figure o...
Can I set null as the default value for a @Value in Spring?
...>
<property name="nullValue" value="@null" />
</bean>
Now you can use the string @null to represent the null value
@Value("${stuff.value:@null}")
private String value;
Please note: The context name space doesn't support the null value at the moment. You can't use
<context...
Detecting a mobile browser
...s more a question of mousehover or not, big bouton or small links. So, for now, i run with "if (Modernizr.touch)" :)
– molokoloco
Jun 26 '13 at 22:26
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