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Rails has_and_belongs_to_many migration
...tical order.
First run your migrations, then edit the generated migration file.
Rails 3
rails g migration create_restaurants_users_table
Rails 4:
rails g migration create_restaurants_users
Rails 5
rails g migration CreateJoinTableRestaurantUser restaurants users
From the docs:
There ...
Should MySQL have its timezone set to UTC?
...n tables
in the mysql database have been created and populated.
in the file "my.cnf"
default_time_zone='+00:00'
or
timezone='UTC'
@@global.time_zone variable
To see what value they are set to
SELECT @@global.time_zone;
To set a value for it use either one:
SET GLOBAL time_zone = '+8:0...
Debug.Assert vs Exception Throwing
... in production code by using Trace.Assert. You can even use the app.config file to re-direct production assertions to a text file rather than being rude to the end-user.
– HTTP 410
Nov 23 '11 at 14:55
...
JavaScript function order: why does it matter?
...
The main reason is probably that JSLint does only one pass on the file so it doesn't know you will define such a function.
If you used functions statement syntax
function foo(){ ... }
There is actually no difference at all where you declare the function (it always behaves as if the decl...
Simple logical operators in Bash
...t on operators such as -n $variable to test if a variable is empty and -e $file to test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests...
JavaScript OOP in NodeJS: how?
... want less "hacky", you should use inheritance library or such.
Well in a file animal.js you would write:
var method = Animal.prototype;
function Animal(age) {
this._age = age;
}
method.getAge = function() {
return this._age;
};
module.exports = Animal;
To use it in other file:
var A...
How are ssl certificates verified?
..."send an email from webmaster@<domain-being-verified> or "Place this file on your domain to prove you own it." However, there have indeed been problems with people getting CAs to issue certificates for domains they don't own - famously someone managed to get a shady CA to issue them a certifi...
Why does pylint object to single character variable names?
...r even though less than three characters. Find in or add to your pylintrc file, under the [FORMAT] header:
# Good variable names which should always be accepted, separated by a comma
good-names=i,j,k,ex,Run,_,pk,x,y
Here pk (for primary key), x, and y are variable names i've added.
...
Run two async tasks in parallel and collect results in .NET 4.5
...
then how to run async? I have application that do lot of file switching and wait for file, around 5 second, and then another process, when i "when for all" it first run first, then second, even though i said: var x = y(), and not var x=await y() or y().wait() yet still it wait all ...
What does “zend_mm_heap corrupted” mean
...rror, I found that if I increase the output_buffering value in the php.ini file, this error goes away
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