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Difference between attr_accessor and attr_accessible
...stname" and "role" :
SQL instructions :
CREATE TABLE users (
firstname string,
lastname string
role string
);
I assumed that you set the option config.active_record.whitelist_attributes = true in your config/environment/production.rb to protect your application from Mass assignment exploit...
Compare equality between two objects in NUnit
...t seems to work out great. The test runner results info will show the JSON string comparison (the object graph) included so you see directly what's wrong.
Also note! If you have bigger complex objects and just want to compare parts of them you can (use LINQ for sequence data) create anonymous object...
C# generic type constraint for everything nullable
...oo<int?>();
Console.WriteLine(foo1.IsNull());
var foo2 = new Foo<string>();
Console.WriteLine(foo2.IsNull());
var foo3= new Foo<int>(); // THROWS
Console.WriteLine(foo3.IsNull());
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How to get URL of current page in PHP [duplicate]
..._SERVER array, see the PHP manual page for it.
If you also need the query string (the bit after the ? in a URL), that part is in this variable:
$_SERVER['QUERY_STRING']
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Iteration over std::vector: unsigned vs signed index variable
...++, you normally need to set it to work with the new standard by giving an extra flag:
g++ -std=c++0x -o auto auto.cpp
Now you can run the example:
$ ./auto
17
12
23
42
Please note that the instructions on compiling and running are specific to gnu c++ compiler on Linux, the program should be p...
How to get the name of enumeration value in Swift?
... print type names and enum cases by default using print(_:), or convert to String using String's init(_:) initializer or string interpolation syntax. So for your example:
enum City: Int {
case Melbourne = 1, Chelyabinsk, Bursa
}
let city = City.Melbourne
print(city)
// prints "Melbourne"
let ...
How do I check if a string is valid JSON in Python?
In Python, is there a way to check if a string is valid JSON before trying to parse it?
4 Answers
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Draw text in OpenGL ES
...aceView. This is slow and bad, but the most direct approach.
Render common strings to textures, and simply draw those textures. This is by far the simplest and fastest, but the least flexible.
Roll-your-own text rendering code based on a sprite. Probably second best choice if 2 isn't an option. A go...
How can I sanitize user input with PHP?
...at you should do, to avoid problems, is quite simple: whenever you embed a string within foreign code, you must escape it, according to the rules of that language. For example, if you embed a string in some SQL targeting MySQL, you must escape the string with MySQL's function for this purpose (mysql...
How do you create a REST client for Java? [closed]
...e = client.resource("http://localhost:8080");
// lets get the XML as a String
String text = resource("foo").accept("application/xml").get(String.class);
BTW I hope that future version of JAX-RS add a nice client side API along the lines of the one in Jersey
...