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Android 4.3 Bluetooth Low Energy unstable
... I have a work around for being unable to unpair. 1) go to your bt menu, select unpair, remove the ble device from the area or depower it, select the ble device in the bt menu and it'll try to pair and fail, then reset bluetooth. Upon reset the device will be unpaired.
– Chr...
Django migration strategy for renaming a model and relationship fields
...ll ask you for
Did you rename the appname.oldName model to NewName? [y/N] select Y
Run python manage.py migrate and it will ask you for
The following content types are stale and need to be deleted:
appname | oldName
appname | NewName
Any objects related to these content types by a foreign key...
Why use the params keyword?
...
You could also use return args.Select(x => x + 2).Sum();
– bbvg
Aug 22 '17 at 21:07
...
How to change the default GCC compiler in Ubuntu?
... @thang also called cc: root@host:/root# update-alternatives --get-selections | grep '/usr/bin/gcc' cc auto /usr/bin/gcc
– jopasserat
Aug 13 '16 at 15:26
...
JPQL IN clause: Java-Arrays (or Lists, Sets…)?
... for JPA 1.0 but you can pass a Collection in JPA 2.0:
String qlString = "select item from Item item where item.name IN :names";
Query q = em.createQuery(qlString, Item.class);
List<String> names = Arrays.asList("foo", "bar");
q.setParameter("names", names);
List<Item> actual = q.get...
Install Gem from Github Branch?
...file.5.html#GIT
Update: There's a github source identifier.
gem 'country_select', github: 'stefanpenner/country_select'
However, they warn against using it: NOTE: This shorthand should be avoided until Bundler 2.0, since it currently expands to an insecure git:// URL. This allows a man-in-the-mi...
How can I use grep to show just filenames on Linux?
...andard:
-l
(The letter ell.) Write only the names of files containing selected
lines to standard output. Pathnames are written once per file searched.
If the standard input is searched, a pathname of (standard input) will
be written, in the POSIX locale. In other locales, standard i...
Stop Visual Studio from mixing line endings in files
...file where they are inconsistent, so all you need to do is open the files, select the desired option from the prompt and save them again.
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How do you properly use namespaces in C++?
...mbols from the namespace.
The most secure way to use "using" is to import select symbols:
void doSomething()
{
using std::string ; // string is now "imported", at least,
// until the end of the function
string a("Hello World!") ;
std::cout << a << std::en...
Proper use of 'yield return'
...ng when one filter the stream (with where), or eventually process it (with select not being select(o => o)).
– Soleil - Mathieu Prévot
Sep 14 at 13:06
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