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sqlalchemy: how to join several tables by one query?
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answered May 18 '11 at 13:04
Abdul KaderAbdul Kader
5,09733 gold badges1919 silver badges3737 bronze badges
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generate model using user:references vs user_id:integer
...un the migration. In rails console, you can see that this is the case:
:001 > Micropost
=> Micropost(id: integer, user_id: integer, created_at: datetime, updated_at: datetime)
The second command adds a belongs_to :user relationship in your Micropost model whereas the first does not. When...
background-size in shorthand background property (CSS3)
... background:url(http://www.google.com/intl/en_com/images/srpr/logo3w.png) 400px 200px / 600px 400px no-repeat;
}
You could do it like this :
body {
background:url(http://www.google.com/intl/en_com/images/srpr/logo3w.png) 400px 400px no-repeat;
background-size:20px 20px
}
Which works in...
Why use a prime number in hashCode?
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104
Because you want the number you are multiplying by and the number of buckets you are inserting ...
Why do Java webapps use .do extension? Where did it come from?
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answered Aug 30 '10 at 3:09
Pascal ThiventPascal Thivent
524k126126 gold badges10121012 silver badges10991099 bronze badges
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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...key"]
[Edit 2]
The new ObjC literals were discussed in multiple WWDC 2012 sessions. I intentionally didn't remove the the filenames and the time of each slide so you can find them for yourself if you feel like. They are essentially the same thing as stated in this post, but there are also a fe...
Is right click a Javascript event?
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190
As others have mentioned, the right mouse button can be detected through the usual mouse events ...
When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
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107
Per the documentation:
void onRestoreInstanceState (Bundle savedInstanceState)
This me...
“Delegate subtraction has unpredictable result” in ReSharper/C#?
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edited Nov 5 '12 at 20:02
answered Jun 24 '12 at 18:32
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how to use XPath with XDocument?
...ame);
var name = document.Descendants(XName.Get("Name", @"http://demo.com/2011/demo-schema")).First().Value;
If you are sure that XPath is the only solution you need:
using System.Xml.XPath;
var document = XDocument.Load(fileName);
var namespaceManager = new XmlNamespaceManager(new NameTable());...