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How can I avoid running ActiveRecord callbacks?
...value')
#Rails >= v4.0 only
@person.update_columns(attributes)
http://api.rubyonrails.org/classes/ActiveRecord/Persistence.html#method-i-update_column
#2: Skipping callbacks that also works while creating an object
class Person < ActiveRecord::Base
attr_accessor :skip_some_callbacks
b...
Domain Driven Design: Domain Service, Application Service
...ot make it an application service. An application service is your domain's API. What if you wanted to reveal your domain to someone else writing an app, what will they use? Application Services, and they may not need caching so your caching impl is useless to them (ie.why it's infrastructure)
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How can I get the count of milliseconds since midnight for the current?
...es?
Java SE 8 and SE 9 and later
Built-in.
Part of the standard Java API with a bundled implementation.
Java 9 adds some minor features and fixes.
Java SE 6 and SE 7
Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
The ThreeTenABP project...
How to clear the interpreter console?
... @jsbueno no it's not. Well maybe on windows (though I doubt it, it has APIs to clear the console). On all other systems, clear outputs a directive that clears the screen. Without trashing the scrollback buffer. On my system, it outputs this control sequence: \33[3J\33[H\33[2J. That is: [erase sc...
force client disconnect from server with socket.io and nodejs
... client should be sufficient though, since socketio does not connect that rapidly, and if somebody really wants to DoS you, they have other ways anyway (e.g. downloading pages from you).
– nh2
Apr 17 '13 at 14:44
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How do I declare and initialize an array in Java?
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// Since Java 8. Doc of IntStream: https://docs.oracle.com/javase/8/docs/api/java/util/stream/IntStream.html
int [] myIntArray = IntStream.range(0, 100).toArray(); // From 0 to 99
int [] myIntArray = IntStream.rangeClosed(0, 100).toArray(); // From 0 to 100
int [] myIntArray = IntStream.of(12,25,...
Create nice column output in python
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To read more about the column-sizing algorithm and see the rest of the API you can check out the link above or see the Columnar GitHub Repo
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Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
...or eventually, to get rid of the error. I am facing similar issue, when an API gets hit successively in a different of miliseconds, due to user clicking twice inadvertently. Pessimistic Locking hurts performance; so will be interested to know what you eventually went for ?
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How to create separate AngularJS controller files?
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Using the angular.module API with an array at the end will tell angular to create a new module:
myApp.js
// It is like saying "create a new module"
angular.module('myApp.controllers', []); // Notice the empty array at the end here
Using it withou...
Creating an array of objects in Java
...elements provided by some "factory", since Java 8 (which introduces stream API) we can use this one-liner:
A[] a = Stream.generate(() -> new A()).limit(4).toArray(A[]::new);
Stream.generate(() -> new A()) is like factory for separate A elements created in a way described by lambda, () ->...