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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:...
Select mySQL based only on month and year
... in my mySQL DB that has some rows. One of this row is a DATE, like this: 2012-02-01
12 Answers
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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...
Why would you use String.Equals over ==? [duplicate]
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Andrew Arnott
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answered Nov 2 '09 at 1:58
Matthew Schar...
Dark color scheme for Eclipse [closed]
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20 Answers
20
Active
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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
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SQLAlchemy IN clause
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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,...
Django template how to look up a dictionary value with a variable
...ctionary value in a Django template is {{ mydict.key1 }} , {{ mydict.key2 }} . What if the key is a loop variable? ie:
8...