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Rails create or update magic?
... User.where(name: "Roger").first_or_initialize
user.email = "email@example.com"
user.save
Alternatively, you can use find_or_initialize_by.
user = User.find_or_initialize_by(name: "Roger")
In Rails 3.
user = User.find_or_initialize_by_name("Roger")
user.email = "email@example.com"
user.save
...
Parse XML using JavaScript [duplicate]
...', and 'p' in a variable called txt
txt = `
<address xmlns:p='example.com/postal' xmlns:s='example.com/street' xmlns:sn='example.com/streetNum'>
<s:street>Roble Ave</s:street>
<sn:streetNumber>649</sn:streetNumber>
<p:postalcode>94025</p:postalcode&g...
Easiest way to read from a URL into a string in .NET
...st tested it (with string s = client.DownloadString("https://stackoverflow.com/questions/1048199/easiest-way-to-read-from-a-url-into-a-string-in-net/1048204");) - works absolutely fine. Whatever is happening: it isn't https that is the immediate problem. Are you sure the site has a valid cert?
...
How to detect if CMD is running as Administrator/has elevated privileges?
...ent answer instead.
Found this solution here: http://www.robvanderwoude.com/clevertricks.php
AT > NUL
IF %ERRORLEVEL% EQU 0 (
ECHO you are Administrator
) ELSE (
ECHO you are NOT Administrator. Exiting...
PING 127.0.0.1 > NUL 2>&1
EXIT /B 1
)
Assuming that doesn't ...
How to get the currently logged in user's user id in Django?
...
Reference: docs.djangoproject.com/en/1.7/topics/auth/default/…
– aliteralmind
Oct 9 '14 at 16:43
3
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Why do my list item bullets overlap floating elements
...contents of the box.
Only IE6 needs an ul { zoom: 1; } in our conditional comments to make sure the ul has layout.
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Convert UTC to local time in Rails 3
...irly inconsistent, so this guy seems to have written his own: onlineaspect.com/2007/06/08/…
– Duke
Nov 1 '12 at 17:55
2
...
How do I check if file exists in jQuery or pure JavaScript?
...
With jQuery:
$.ajax({
url:'http://www.example.com/somefile.ext',
type:'HEAD',
error: function()
{
//file not exists
},
success: function()
{
//file exists
}
});
EDIT:
Here is the code for checking 404 status, without using j...
Automatically deleting related rows in Laravel (Eloquent ORM)
...
I believe this is a perfect use-case for Eloquent events (http://laravel.com/docs/eloquent#model-events). You can use the "deleting" event to do the cleanup:
class User extends Eloquent
{
public function photos()
{
return $this->has_many('Photo');
}
// this is a reco...
How can I git stash a specific file?
...
EDIT: Since git 2.13, there is a command to save a specific path to the stash: git stash push <path>. For example:
git stash push -m welcome_cart app/views/cart/welcome.thtml
OLD ANSWER:
You can do that using git stash --patch (or git stash -p) --...