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What is the easiest way to duplicate an activerecord record?
...a copy, use the clone (or dup for rails 3.1+) method:
# rails < 3.1
new_record = old_record.clone
#rails >= 3.1
new_record = old_record.dup
Then you can change whichever fields you want.
ActiveRecord overrides the built-in Object#clone to give you a new (not saved to the DB) record with a...
What do parentheses surrounding an object/function/class declaration mean? [duplicate]
...ction, making it truly private.
See:
http://en.wikipedia.org/wiki/Closure_%28computer_science%29
http://peter.michaux.ca/articles/javascript-namespacing
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How to check if hex color is “too black”?
...nipulation in javascript in a while. cool stuff. en.wikipedia.org/wiki/Rec._709#Luma_coefficients
– jbabey
Aug 20 '12 at 18:54
...
What Vim command(s) can be used to quote/unquote words?
...ile converting some MSDOS scripts to bash.
– ILMostro_7
Mar 26 '14 at 7:57
@Geoff, it works fine for single quotes. bu...
How do I access this object property with an illegal name?
...
<?php
$x = new StdClass();
$x->{'todo-list'} = 'fred';
var_dump($x);
So, $object->{'todo-list'} is the sub-object. If you can set it like that, then you can also read it the same way:
echo $x->{'todo-list'};
Another possibility:
$todolist = 'todo-list';
echo $x->$todolis...
Adding a user to a group in django
...using Group model with the name of the group, then add the user to the user_set
from django.contrib.auth.models import Group
my_group = Group.objects.get(name='my_group_name')
my_group.user_set.add(your_user)
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How to set JVM parameters for Junit Unit Tests?
...roperty=test"
See http://www.cowtowncoder.com/blog/archives/2010/04/entry_385.html
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How to convert SSH keypairs generated using PuTTYgen (Windows) into key-pairs used by ssh-agent and
...port OpenSSH and export your private key
Copy your private key to ~/.ssh/id_dsa (or id_rsa).
Create the RFC 4716 version of the public key using ssh-keygen
ssh-keygen -e -f ~/.ssh/id_dsa > ~/.ssh/id_dsa_com.pub
Convert the RFC 4716 version of the public key to the OpenSSH format:
ssh-keygen -i...
UIActivityViewController crashing on iOS 8 iPads
...S8 activityViewController.popoverPresentationController.sourceView = _shareItem; }
– bluebamboo
Oct 26 '14 at 22:01
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Clearing purchases from iOS in-app purchase sandbox for a test user
...h test accounts.
Say that you have a non-consumable with product ID @"Extra_Levels". Instead of writing @"Extra_Levels" in all methods (requestProduct, purchaseProduct, ...), just write PRODUCT_ID1 and at some header file put #define PRODUCT_ID1 @"Extra_Levels" (with no semicolon!), then the preproc...