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Possible to access the index in a Hash each loop?
... obvious, but is there a way to access the index/count of the iteration inside a hash each loop?
2 Answers
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Concatenate strings in Less
...hink this is not possible, but I thought I ask in case there is a way. The idea is that I have a variable for path to web resource folder:
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Assigning default value while creating migration file
...eply. I thought it would be great if default migration generator would provide option to handle default values so that I do not have to edit the migration file after being generated in order to specify default value.
– kxhitiz
May 29 '11 at 14:42
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Unittest setUp/tearDown for several tests
... bet is probably going to be to create your own derived TestSuite and override run(). All other calls would be handled by the parent, and run would call your setup and teardown code around a call up to the parent's run method.
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Postgresql: Conditionally unique constraint
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it has already been said that PG doesn't define a partial (ie conditional) UNIQUE constraint. Also documentation says that the preferred way to add a unique constraint to a table is ADD CONSTRAINT Unique Indexes
The preferred way to add a uniq...
Solutions for INSERT OR UPDATE on SQL Server
...Insert-or-update you can easily
get primary key violation.
Solutions provided by @Beau Crawford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where ke...
How can I add an empty directory to a Git repository?
... stay (almost) empty (in the repository) is to create a .gitignore file inside that directory that contains these four lines:
# Ignore everything in this directory
*
# Except this file
!.gitignore
Then you don't have to get the order right the way that you have to do in m104's solution.
This als...
Collections.emptyList() returns a List?
... trouble navigating Java's rule for inferring generic type parameters. Consider the following class, which has an optional list parameter:
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python: how to send mail with TO, CC and BCC?
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Key thing is to add the recipients as a list of email ids in your sendmail call.
import smtplib
from email.mime.multipart import MIMEMultipart
me = "user63503@gmail.com"
to = "someone@gmail.com"
cc = "anotherperson@gmail.com,someone@yahoo.com"
bcc = "bccperson1@gmail.com,bccpe...
Git: copy all files in a directory from another branch
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This has a very weird side effect. It copies dirname over, but it also copies any files that are in the .gitignore of the master branch. Any idea why that is?
– Milimetric
Feb 24 '13 at 13:08
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