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Adding :default => true to boolean in existing Rails column
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change_column :things, :price_1, :integer, default: 123, null: false
Seems to be best way to add a default to an existing column that doesn't have null: false already.
Otherwise:
change_column :things, :price_1, :integer, default: 123
Some research I did on this:
https:...
call a static method inside a class?
...that a static method call is taking place.
$this::staticMethod();
Since PHP 5.3 you can use $var::method() to mean <class-of-$var>::; this is quite convenient, though the above use-case is still quite unconventional. So that brings us to the most common way of calling a static method:
self...
Test if number is odd or even
...simplest most basic way to find out if a number/variable is odd or even in PHP?
Is it something to do with mod?
17 Answers
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Accessing JPEG EXIF rotation data in JavaScript on the client side
...You could have an API that takes a file URL and returns you the EXIF data; PHP has a module for that.
This could be done using Ajax so it would be seamless to the user. If you don't care about cross-browser compatibility, and can rely on HTML5 file functionality, look into the library JsJPEGmeta t...
curl json post request via terminal to a rails app
...firstname","last_name":"lastname","email":"email@email.com","password":"app123","password_confirmation":"app123"}}' \
http://localhost:3000/api/1/users
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Twig: in_array or similar possible within if statement?
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If you want to achieve the same as in_array() in PHP, ommit the keys filter
– Burgi
Feb 8 '12 at 16:05
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Removing array item by value
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my bad; php's variable aliasing gimmick always trips me over >.>
– srcspider
Aug 27 '13 at 20:10
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Can a CSV file have a comment?
... I have more often seen and used: #Csv/Version 1.9 Time,ValueA,ValueB 0.0, 123, 456 0.1, 123, 349
– Crog
Aug 25 at 8:31
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Facebook share link without JavaScript
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You could use
<a href="https://www.facebook.com/sharer/sharer.php?u=#url" target="_blank">Share</a>
Currently there is no sharing option without passing current url as a parameter. You can use an indirect way to achieve this.
Create a server side page for example: "/sharer....
What is the difference between an expression and a statement in Python?
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123
Expression -- from the New Oxford American Dictionary:
expression: Mathematics a collecti...