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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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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...
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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Where is svcutil.exe in Windows 7?
...n to specify things such as binding of service, the address of the service and the contract.
6 Answers
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What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?
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@thanikkal Make sure you are using Minitest::Spec and not Minitest::Test. The Spec DSL, including expectations, are only available when using Minitest::Spec.
– blowmage
Oct 10 '16 at 15:28
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mongo group query how to keep fields
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@Juliomac, I believe if your desired output is $max/$min and keeping fields that are not in the $group _id, you can $sort before with the desired field then group and use $first or $last operators on any field. When accumulating, the idea to include other fields (which are accumula...
What is Angular.noop used for?
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@abyrne85 It is more aesthetically pleasing and a good practice to use angular.noop as you always reuse the same empty function (instead of declaring a new anonymous function everytime). Performance-wise it makes no difference as the code for angular.noop is just an em...