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ActiveModel::ForbiddenAttributesError when creating new user
...put by seeing if your controller will respond to the following methods (in order):
create_params
<model_name>_params such as article_params (this is
the default convention in rails for naming your param method)
resource_params (a generically named method you could specify in
each controller)...
What exactly is an Assembly in C# or .NET?
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The answer is in order for immediate-grasping.
Put simply, it is the compiled project involving your classes and additional files, if there are. That is, each project in a
solution is assembly.
Or more techinally,
An assembly is w...
Your content must have a ListView whose id attribute is 'android.R.id.list'
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Add column with constant value to pandas dataframe [duplicate]
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Can't use method return value in write context
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empty() needs to access the value by reference (in order to check whether that reference points to something that exists), and PHP before 5.5 didn't support references to temporary values returned from functions.
However, the real problem you have is that you use empty() at ...
In an array of objects, fastest way to find the index of an object whose attributes match a search
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Maybe you would like to use higher-order functions such as "map".
Assuming you want search by 'field' attribute:
var elementPos = array.map(function(x) {return x.id; }).indexOf(idYourAreLookingFor);
var objectFound = array[elementPos];
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How to get the last character of a string in a shell?
...n case you have a matching filename):
sh lash_ch.sh 'abcde*'
Also see the order of expansions in the bash reference manual. Variables are expanded before the filename expansion.
To get the last character you should just use -1 as the index since the negative indices count from the end of the string...
How do I get the dialer to open with phone number displayed?
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When should I make explicit use of the `this` pointer?
...w to treat i, since it may or may not exist in all instantiations of A. In order to tell it that i is indeed a member of A<T>, for any T, the this-> prefix is required.
Note: it is possible to still omit this-> prefix by using:
template<class T>
struct B : A<T> {
using...
How do I pass multiple attributes into an Angular.js attribute directive?
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