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How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?
...lare foreign key relationships and other constraints using code first EF 4.1 without much luck. Basically I am building the data model in code and using MVC3 to query that model. Everything works via MVC which is great (kudos to Microsoft!) but now I want it NOT to work because I need to have data m...
Format bytes to kilobytes, megabytes, gigabytes
...bytes = max($bytes, 0);
$pow = floor(($bytes ? log($bytes) : 0) / log(1024));
$pow = min($pow, count($units) - 1);
// Uncomment one of the following alternatives
// $bytes /= pow(1024, $pow);
// $bytes /= (1 << (10 * $pow));
return round($bytes, $precision) . ' ' ...
Rails migrations: self.up and self.down versus change
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110
For many operations rails can guess what is the inverse operation (without problems). For exam...
How to put a label on an issue in GitHub if you are not a contributor / owner?
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edited Feb 4 '16 at 11:04
answered Dec 11 '12 at 22:22
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quick random row selection in Postgres
...ith OFFSET, as in
SELECT myid FROM mytable OFFSET floor(random()*N) LIMIT 1;
The N is the number of rows in mytable. You may need to first do a SELECT COUNT(*) to figure out the value of N.
Update (by Antony Hatchkins)
You must use floor here:
SELECT myid FROM mytable OFFSET floor(random()*N) L...
Record file copy operation with Git
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114
Git does not do rename tracking nor copy tracking, which means it doesn't record renames or co...
Creating an instance of class
What's the difference between lines 1 , 2 , 3 , 4?
3 Answers
3
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How do I include a pipe | in my linux find -exec command?
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148
The job of interpreting the pipe symbol as an instruction to run multiple processes and pipe t...
How to hide databases that I am not allowed to access
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Had the same issue, as its a shared space on AWS with 1000 other DBs.
In pgAdmin III
make sure you are disconnected from the server,
select the Server, right click -> properties, Advanced tab,
in 'DB restriction' type in the name of your database(s) enclosed in single quot...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
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edited Aug 25 '14 at 15:31
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