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How to restart a rails server on Heroku?
...eroku restart -a app_name -r remote_name
Alternatively if you are in the root directory of your rails application you can just type
heroku restart
to restart that app and and you can create an easy alias for that with
alias hr='heroku restart'`
You can place these aliases in your .bashrc fil...
Bower and devDependencies vs dependencies
...s errors
-V, --verbose Makes output more verbose
--allow-root Allows running commands as root
See 'bower help <command>' for more information on a specific command.
and further, bower help install yields (see latest source):
Usage:
bower install [<optio...
How do SQL EXISTS statements work?
... FROM SUPPLIERS JOIN ORDERS ... on SQL Server, haven't tested on Oracle or MySQL lately.
– OMG Ponies
May 1 '11 at 16:40
...
in iPhone App How to detect the screen resolution of the device
...ainScreen] bounds]];
// Set the initial view controller to be the root view controller of the window object
self.window.rootViewController = initialViewController;
// Set the window object to be the key window and show it
[self.window makeKeyAndVisible];
i...
What Java ORM do you prefer, and why? [closed]
...ented data models. Instead, your company runs several instances of Oracle, MySQL, MSSQL, DB2 or any other RDBMS.
SQL has a structure and syntax. It should not be expressed using "low-level" String concatenation in JDBC - or "high-level" String concatenation in HQL - both of which are prone to hold s...
Quicksort vs heapsort
...y left child has a value greater than its sibling;
Recursively extract the root of the heap, sift down the lacune left by the root until it reaches a leaf of the heap, then fill the lacune with an appropriate element took from the other part of the array;
Recur over the remaining non-ordered part of...
What is Rack middleware?
...body>
</html>
We maybe want to serve this file from the website root, so let's add the following to our config.ru:
map '/' do
run Rack::File.new "htmls/index.html"
end
If we visit http://localhost:9292 we see our html file perfectly rendered. That's was easy, right?
Let's add a whol...
What is the optimal length for an email address in a database?
... then you can/must use a VARCHAR(254) to store an email address.
Note: In MySQL at least, a column declared as VARCHAR whit less or equal than 255 octets will be all stored as 1 byte + length (the 1 is to store the length) so no space is gained if used a lower limit.
...
ReactJS SyntheticEvent stopPropagation() only works with React events?
...tePropagation to prevent your other (jQuery in this case) listeners on the root from being called. It is supported in IE9+ and modern browsers.
stopPropagation: function(e){
e.stopPropagation();
e.nativeEvent.stopImmediatePropagation();
},
Caveat: Listeners are called in the order in whi...
CentOS 64 bit bad ELF interpreter
...nstall "Compatibility libraries"
Either prefix this with 'sudo' or run as root, whichever works best for you.
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