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What predefined macro can I use to detect clang?
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Found the answer using strings + grep :
$ strings /usr/bin/clang | grep __ | grep -i clang
__clang__
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How to move a model between two Django apps (Django 1.7)
...ion
Point all of the FK references to the new model. If you aren't using string references, move the old model to the bottom of models.py (DON'T remove it) so it doesn't compete with the imported class.
Run makemigrations but DON'T wrap anything in state_operations (the FK changes should actually ...
Is SHA-1 secure for password storage?
... that cost N once and can thereafter attack many passwords with very small extra cost per password.
If the pre-computed table is a rainbow table, then N can be somewhat bigger, because storage cost is reduced. The bottleneck on N becomes the CPU power that the attacker can muster, not the size of hi...
Spring Test & Security: How to mock authentication?
...ller {
@Secured("ROLE_MANAGER")
@GetMapping("/salute")
public String saluteYourManager(@AuthenticationPrincipal User activeUser)
{
return String.format("Hi %s. Foo salutes you!", activeUser.getUsername());
}
}
Here we have a get mapped function to the route /foo/salute ...
How can we programmatically detect which iOS version is device running on? [duplicate]
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Best current version, without need to deal with numeric search within NSString is to define macros (See original answer: Check iPhone iOS Version)
Those macros do exist in github, see: https://github.com/carlj/CJAMacros/blob/master/CJAMacros/CJAMacros.h
Like this:
#define SYSTEM_VERSION_EQUA...
Why dict.get(key) instead of dict[key]?
...to False in a boolean context (i.e. a Falsey value), such as 0 or an empty string, '', then dictionary.get("bogus") or my_default would evaluate to my_default whereas dictionary.get("bogus", my_default) would return the Falsey value. So no, dictionary.get("bogus") or my_default is not equivalent to ...
Get file version in PowerShell
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Warning The FileVersionInfo.FileVersion is a string representation that may not be up to date. You should look at FileVersionInfo.FileMajorPart, FileMinorPart, FileBuildPart, FilePrivatePart. See GetFileVersionInfo() returns wrong file's version information
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Specifying an Index (Non-Unique Key) Using JPA
...lass Region{
@Column(name = "iso_code", nullable = false)
private String isoCode;
@Column(name = "name", nullable = false)
private String name;
}
Update: If you ever need to create and index with two or more columns you may use commas. For example:
@Entity
@Table(name = "co...
JavaScript ternary operator example with functions
...nch, you have a muti-branched if/else tree, or multiple else/ifs in a long string.
The ternary operator is common when you're assigning a value to a variable based on a simple condition or you are making multiple decisions with very brief outcomes. The example you cite actually doesn't make sense,...
SQLAlchemy: cascade delete
...ship("Child", cascade="all,delete", backref="parent")
(note "Child" as a string: this is allowed when using the declarative style, so that you are able to refer to a class that is not yet defined)
You might want to add delete-orphan as well (delete causes children to be deleted when the parent ge...