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A migration to add unique constraint to a combination of columns

... I tried by editing and existing migration which didn't work, then added a new one and it worked, thanks. – rangalo Jul 30 '10 at 11:10 add a comment  |  ...
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Custom checkbox image android

... Some explanation would help new users understand how your code solves the issue. – Brian Tompsett - 汤莱恩 Jun 28 '18 at 7:55 ...
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NSAttributedString add text alignment

... NSMutableParagraphStyle *paragraphStyle = NSMutableParagraphStyle.new; paragraphStyle.alignment = NSTextAlignmentCenter; NSAttributedString *attributedString = [NSAttributedString.alloc initWithString:@"someText" attributes: @{NSP...
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Has Facebook sharer.php changed to no longer accept detailed parameters?

...ptional but should be set to false for non-canvas apps ); $facebook = new Facebook($config); $user_id = $facebook->getUser(); ?> <html> <head></head> <body> <?php if($user_id) { // We have a user ID, so probably a logged in user. // If ...
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Java variable number or arguments for a method

... // Multiple args. foo("foo", "bar", "lol"); // Don't matter how many! foo(new String[] { "foo", "bar" }); // Arrays are also accepted. foo(); // And even no args. share | improve this answer ...
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Should I pass a shared_ptr by reference? [duplicate]

...using a shared pointer in the first place. Copy the shared pointer when a new function or object needs to share ownership of the pointee. share | improve this answer | follo...
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Check if an element contains a class in JavaScript?

...ion hasClass(element, className) { return element.className && new RegExp("(^|\\s)" + className + "(\\s|$)").test(element.className); } This accounts for the fact that element might contain multiple class names separated by space. OR You can also assign this function to element p...
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How to select the last record of a table in SQL?

...e can do is something like Sql Server SELECT TOP 1 * FROM Table ORDER BY ID DESC MySql SELECT * FROM Table ORDER BY ID DESC LIMIT 1 share | improve this answer | follow...
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Why shouldn't I use mysql_* functions in PHP?

...ameterized queries Stored procedures Multiple Statements Transactions The "new" password authentication method (on by default in MySQL 5.6; required in 5.7) Any of the new functionality in MySQL 5.1 or later Since it is deprecated, using it makes your code less future proof. Lack of support for...
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Javascript Thousand Separator / string format [duplicate]

... I don't think so, adding a new file requirement with almost 800 lines , it is like kill an ant with a granade – Emiliano Dec 18 '19 at 14:48 ...