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Migration: Cannot add foreign key constraint

... Add it in two steps, and it's good to make it unsigned too: public function up() { Schema::create('priorities', function($table) { $table->increments('id', true); $table->integer('user_id')->unsigned(); $tabl...
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Defining a function with multiple implicit arguments in Scala

... They must all go in one parameter list, and this list must be the last one. def myfun(arg:String)(implicit p1: String, p2:Int)={} share | improve this answer ...
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In PHP, how do you change the key of an array element?

...r it is not a sequential numerical value. The key is actually an ID number and the value is a count. This is fine for most instances, however I want a function that gets the human-readable name of the array and uses that for the key, without changing the value. ...
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Why is Scala's immutable Set not covariant in its type?

...nt hinges around "the concept behind sets as functions" - could this be expanded upon? For example, what advantages does "a set as a function" give me that a "set as a collection" not? Is it worth losing the use of that covariant type? – oxbow_lakes Mar 24 '09 ...
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How can I read a whole file into a string variable

...ame string) ([]byte, error) ReadFile reads the file named by filename and returns the contents. A successful call returns err == nil, not err == EOF. Because ReadFile reads the whole file, it does not treat an EOF from Read as an error to be reported. You will get a []byte instead of a st...
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Finding Variable Type in JavaScript

...d]" With that you would not have to distinguish between primitive values and objects. share | improve this answer | follow | ...
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How to disable GCC warnings for a few lines of code

...is one */ #pragma GCC diagnostic pop foo(d); /* depends on command line options */ share | improve this answer | follow | ...
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Does Android keep the .apk files? if so where?

After android installs an application from the Marketplace, does it keep the .apk file? 19 Answers ...
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How to add a ScrollBar to a Stackpanel

...ewer around it, the entire content doesn't show up. I tried setting Height and Width to Auto, but no luck. Why should only a limited portion show? – Shamim Hafiz Jun 6 '11 at 9:57 ...
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What's the best way to use R scripts on the command line (terminal)?

It's very convenient to have R scripts for doing simple plots from the command line. However, running R from bash scripts is not convenient at all. The ideal might be something like ...