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Rails: Adding an index after adding column
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rails generate migration AddUserRefToProducts user:references
This command will generate the following migration:
class AddUserRefToProducts < ActiveRecord::Migration
def change
add_reference :user, :product, index: true
end
end
After running rake db:migrate both a user_id column a...
Trigger a keypress/keydown/keyup event in JS/jQuery?
...is the best way to simulate a user entering text in a text input box in JS and/or jQuery?
9 Answers
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`require': no such file to load — mkmf (LoadError)
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@lamplightdev Didnt work for me, ruby version was 1.9.3 and it was installing 1.8 If I tried to install ruby-dev
– Karthik T
Sep 5 '13 at 0:12
1
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Wrapping chained method calls on a separate line in Eclipse for Java
...on column
It should give you the exact behavior you asked for.
BONUS: Android Studio / IntelliJ Idea:
Mac OS: Android Studio → Preferences (Cmd +,) → Editor → Code Style → Java → Wrapping And Braces tab → Chained method calls
select
Wrap always
and check
Align when m...
Pythonic way of checking if a condition holds for any element of a list
I have a list in Python, and I want to check if any elements are negative. Specman has the has() method for lists which does:
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How to download a file with Node.js (without using third-party libraries)?
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You can create an HTTP GET request and pipe its response into a writable file stream:
const http = require('http');
const fs = require('fs');
const file = fs.createWriteStream("file.jpg");
const request = http.get("http://i3.ytimg.com/vi/J---aiyznGQ/mqdefaul...
How to find available versions for a bower dependency
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You can use info command to get information
for example:
Open a terminal and type
bower info jquery-ui
You will get a list of available versions as well
BTW: You can search via your terminal with:
bower search jquery-ui
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Entity Framework: How to disable lazy loading for specific query?
... is more effective to guarantee that all data needed is fetched in advance and avoids creating hidden performance bottlenecks.
– Doug
Oct 15 '18 at 17:27
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How to create JSON string in C#
...ing. I assume you would just use a stringbuilder to build the JSON string and them format your response as JSON?
14 Answer...
How to get UTC timestamp in Ruby?
... needs additional information to even know that you're dealing with a time and not a number. A Time object solves this problem nicely by representing a point in time and also being explicit about what it is.
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