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How to read the database table name of a Model instance?
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Found the answer myself: the _meta attribute of an instance has the information:
model_instance._meta.db_table
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How to convert a Title to a URL slug in jQuery?
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For avoid "_" in slug, override .replace(/ +/g,'-') to .replace(/ +|_/g,'-').
– Odin Thunder
Mar 17 '17 at 13:47
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Simplest two-way encryption using PHP
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Edited:
You should really be using openssl_encrypt() & openssl_decrypt()
As Scott says, Mcrypt is not a good idea as it has not been updated since 2007.
There is even an RFC to remove Mcrypt from PHP - https://wiki.php.net/rfc/mcrypt-viking-funeral
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Queue.Queue vs. collections.deque
...ly intended as a datastructure. That's why Queue.Queue has methods like put_nowait(), get_nowait(), and join(), whereas collections.deque doesn't. Queue.Queue isn't intended to be used as a collection, which is why it lacks the likes of the in operator.
It boils down to this: if you have multiple t...
Windows batch: echo without new line
...d $write.special (
<nul set /p "=!%~1!"
exit /b
)
>"%$write.temp%_1.txt" (echo !str!!$write.sub!)
copy "%$write.temp%_1.txt" /a "%$write.temp%_2.txt" /b >nul
type "%$write.temp%_2.txt"
del "%$write.temp%_1.txt" "%$write.temp%_2.txt"
set "str2=!str:*%$write.sub%=%$write.sub%!"
if "!str2!...
How to check whether a file or directory exists?
...iven file or directory exists
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { return true, nil }
if os.IsNotExist(err) { return false, nil }
return false, err
}
Edited to add error handling.
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Creating your own header file in C
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foo.h
#ifndef FOO_H_ /* Include guard */
#define FOO_H_
int foo(int x); /* An example function declaration */
#endif // FOO_H_
foo.c
#include "foo.h" /* Include the header (not strictly necessary here) */
int foo(int x) /* Functi...
List of special characters for SQL LIKE clause
...inds all book titles with the word 'computer' anywhere in the book title.
_ Any single character.
WHERE au_fname LIKE '_ean' finds all four-letter first names that end with ean (Dean, Sean, and so on).
[ ] Any single character within the specified range ([a-f]) or set ([abcdef]).
WHERE au_lname L...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...e，可加参数指定ip、端口，默认本机27017）
config={
"_id" : "ReplSetName",
"members" : [
{"_id" : 0, "host" : "172.16.88.97:27017",priority:2},
{"_id" : 1, "host" : "172.16.88.97:27018",priority:1},
{"_id" : 2, "host" : "172.16.88.97:27019",arbit...
The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...iginal parent including the child item collection
var originalParent = _dbContext.ParentItems
.Where(p => p.ID == parent.ID)
.Include(p => p.ChildItems)
.SingleOrDefault();
// We assume that the parent is still in the DB and don't check for null
// Update s...