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How to Deal with Temporary NSManagedObject instances?

...Then when you want to save it: [myMOC insertObject:unassociatedObject]; NSError *error = nil; if (![myMoc save:&error]) { //Respond to the error } share | improve this answer | ...
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Rails update_attributes without save?

..., :is_admin => true }) # Raises an ActiveModel::MassAssignmentSecurity::Error user.assign_attributes({ :name => 'Bob'}) user.name # => "Bob" user.is_admin? # => false user.new_record? # => true share...
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How to allow http content within an iframe on a https site

...e but when a file referenced is using http, not https, I get the following error: 9 Answers ...
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Performance surprise with “as” and nullable types

I'm just revising chapter 4 of C# in Depth which deals with nullable types, and I'm adding a section about using the "as" operator, which allows you to write: ...
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Why does DEBUG=False setting make my django Static Files Access fail?

...ied this approach of viewing the 404.html and 500.html via some other non-error mechanism similar to what u suggest. But i wanted to know whether it was totally impossible to have my pages render correctly as they would in production, while still merely running on my testing server - the delegation...
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Are C++ enums signed or unsigned?

...ana; // Okay, Banana is a member of the Fruit enum fruitVariable = 1; // Error, 1 is not a member of enum Fruit // even though it has the same value as banana. share | improve...
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No 'Access-Control-Allow-Origin' - Node / Apache Port Issue

...-http-proxy and Vhosts Apache but not having much succes, please see full error and code below. 13 Answers ...
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How to increase font size in the Xcode editor?

...ects you have open in Xcode"? I don't know if it's expected behavior or my error, however in Xcode Version 5.1 (5B130a), I can't change fonts if there are any projects currently open. – original_username Mar 17 '14 at 9:07 ...
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View not attached to window manager crash

... report app crashes. I was getting a View not attached to window manager error message and thought I had fixed it by wrapping the pDialog.dismiss(); in an if statement: ...
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Loading local JSON file

... I tried this, but no luck. No error in console as well :( – Govind Kailas Feb 15 '14 at 11:21 11 ...