jQuery.qrcode, generate QR codes dynamically rails wrap.
Add this line to your application's Gemfile:
gem 'jquery-qrcode-rails'
And then execute:
$ bundle
$(selector).qrcode(options);
The available options and their default values are:
{
// render method: 'canvas', 'image' or 'div'
render: 'canvas',
// version range somewhere in 1 .. 40
minVersion: 1,
maxVersion: 40,
// error correction level: 'L', 'M', 'Q' or 'H'
ecLevel: 'L',
// offset in pixel if drawn onto existing canvas
left: 0,
top: 0,
// size in pixel
size: 200,
// code color or image element
fill: '#000',
// background color or image element, null for transparent background
background: null,
// content
text: 'no text',
// corner radius relative to module width: 0.0 .. 0.5
radius: 0,
// quiet zone in modules
quiet: 0,
// modes
// 0: normal
// 1: label strip
// 2: label box
// 3: image strip
// 4: image box
mode: 0,
mSize: 0.1,
mPosX: 0.5,
mPosY: 0.5,
label: 'no label',
fontname: 'sans',
fontcolor: '#000',
image: null
}
Or to visit official doc