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Foreign keys in mongo?

... You may be interested in using a ORM like Mongoid or MongoMapper. http://mongoid.org/docs/relations/referenced/1-n.html In a NoSQL database like MongoDB there are not 'tables' but collections. Documents are grouped inside Col...
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A migration to add unique constraint to a combination of columns

... Nope, it's all good. My bad! The unique constraint comes with the unique index. – Paul Cantrell Aug 24 '11 at 16:34 ...
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Optional query string parameters in ASP.NET Web API

...ect using [FromUri] doesn't directly answer the original question. It basically says populate these models with the values from the Uri. The models properties would need to be nullable or a reference type in order for them to support being optional. Added additional information. ...
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Android: Temporarily disable orientation changes in an Activity

...r, I noticed that if I rotate my phone it restarts the activity which is REALLY bad for the process that was running, and I get a Force Close. ...
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How to make return key on iPhone make keyboard disappear?

...ate after you init the textfield in the .m: yourTextField = [[UITextField alloc] initWithFrame:yourFrame]; //.... //.... //Setting the textField's properties //.... //The next line is important!! yourTextField.delegate = self; //self references the viewcontroller or view your textField is on ...
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Matplotlib: “Unknown projection '3d'” error

I just installed matplotlib and am trying to run one of there example scripts. However I run into the error detailed below. What am I doing wrong? ...
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jQuery Selector: Id Ends With?

...:inpTest"). This does not $("[id$='inpTest']"). Is it because colon is not allowed in ID (but JSF adds it!)? – Panu Haaramo Apr 26 '14 at 10:16 ...
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Python - abs vs fabs

... that in python there are two similar looking methods for finding the absolute value of a number: 4 Answers ...
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Scala: Nil vs List()

In Scala, is there any difference at all between Nil and List() ? 3 Answers 3 ...
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How to write very long string that conforms with PEP8 and prevent E501

... Implicit concatenation might be the cleanest solution: s = "this is my really, really, really, really, really, really," \ " really long string that I'd like to shorten." Edit On reflection I agree that Todd's suggestion to use brackets rather than line continuation is better for all the reas...