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IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...as been saved. Previously adding the fragment with commitAllowingStateLoss doesn't play any part. My testing shows this to be true. It has no effect on this specific exception. What we need is a popBackStackImmediateAllowingStateLoss method.
– Synesso
Jan 9 '15...
Why 0 is true but false is 1 in the shell?
... operation. Did the operation exit successfully? [*1] And if the operation does not exit successfully why did the operation exit unsuccessfully? Any value could be used to denote success. But 0 is more convenient than any other number because it is portable between platforms. Summarizing xibo's answ...
How to map calculated properties with JPA and Hibernate
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JPA doesn't offer any support for derived property so you'll have to use a provider specific extension. As you mentioned, @Formula is perfect for this when using Hibernate. You can use an SQL fragment:
@Formula("PRICE*1.155")
pr...
npm install vs. update - what's the difference?
...s --dev flag is added
Why use npm install at all?
Because npm install does more when you look besides handling your dependencies in package.json.
As you can see in npm install you can ...
manually install node-modules
set them as global (which puts them in the shell's PATH) using npm install ...
What is the difference between C# and .NET?
...implementation above even uses the .NET framework (implicitly, yes, but it does use it nonetheless) because Example inherits from System.Object.
Also, the reason I use the phrase Microsoft's implementation of C# is because there are other implementations of C# available.
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How do I get currency exchange rates via an API such as Google Finance? [closed]
...eas the European Central Bank has day old data), and stops in the weekend. Doesn't require any kind of sign up.
[http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in ("USDEUR", "USDJPY", "USDBGN", "USDCZK", "USDDKK", "USDGBP", "USDHUF", "USDLTL", "USDLVL", "U...
JPA : How to convert a native query result set to POJO class collection
...rns from your native query into an Entity or a custom class.
EDIT JPA 1.0 does not allow mapping to non-entity classes. Only in JPA 2.1 a ConstructorResult has been added to map return values a java class.
Also, for OP's problem with getting count it should be enough to define a result set mapping...
How to include (source) R script in other scripts
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There is no such thing built-in, since R does not track calls to source and is not able to figure out what was loaded from where (this is not the case when using packages). Yet, you may use same idea as in C .h files, i.e. wrap the whole in:
if(!exists('util_R')){
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vector::at vs. vector::operator[]
...e intention that vector::at() will never throw an exception, so that if it does, and your program aborts, it's a sign of a bug. (just like an assert())
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Difference between attr_accessor and attr_accessible
...> 'Corn', :quantity => 6, :price_off => 30 })
Even if your form doesn't have a field for :price_off, if it's in your model it's available by default. This means a crafted POST could still set it. Using attr_accessible white lists those things that can be mass assigned.
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