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Rails detect if request was AJAX
...
249
You can check for a header[X-Requested-With] to see if it is an AJAX request. Here is a good a...
Adding git branch on the Bash command prompt
...ple (Mac OS X 10.15):
$ find / -name 'git-prompt.sh' -type f -print -quit 2>/dev/null
/Library/Developer/CommandLineTools/usr/share/git-core/git-prompt.sh
Option 2: Pull the script from GitHub.
Next, add the following line to your .bashrc/.zshrc:
source ~/.git-prompt.sh
Finally, change you...
Version vs build in Xcode
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1237
Apple sort of rearranged/repurposed the fields.
Going forward, if you look on the Info tab f...
Validate uniqueness of multiple columns
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321
You can scope a validates_uniqueness_of call as follows.
validates_uniqueness_of :user_id, :s...
How to loop through files matching wildcard in batch file
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295
Assuming you have two programs that process the two files, process_in.exe and process_out.exe:...
Why would you use String.Equals over ==? [duplicate]
...
Andrew Arnott
72.7k2424 gold badges123123 silver badges162162 bronze badges
answered Nov 2 '09 at 1:58
Matthew Schar...
Testing modules in rspec
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221
The rad way =>
let(:dummy_class) { Class.new { include ModuleToBeTested } }
Alternativel...
Iterate a list as pair (current, next) in Python
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132
Here's a relevant example from the itertools module docs:
import itertools
def pairwise(iterabl...
How do I create directory if it doesn't exist to create a file?
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edited Nov 20 '18 at 9:59
BKSpurgeon
21.7k88 gold badges7777 silver badges6363 bronze badges
...
SQLAlchemy IN clause
...
How about
session.query(MyUserClass).filter(MyUserClass.id.in_((123,456))).all()
edit: Without the ORM, it would be
session.execute(
select(
[MyUserTable.c.id, MyUserTable.c.name],
MyUserTable.c.id.in_((123, 456))
)
).fetchall()
select() takes two parameters,...