Barcode is a machine-readable code in the form of numbers and a pattern of parallel lines of varying widths, printed on a commodity and used especially for stock control. In other terms we can say Barcodes are images returned by a controller and can easily be embedded in reports.
QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode). A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data.
To generate a barcode or QR code you have to first configure your system by following steps:
Step 1: Update reportlab using following command:
sudo pip install reportlab --upgrade
Step 2: Load fonts by following below mentioned steps:
Go to path /usr/lib/python2.7/dist-packages/reportlab
Create a new folder named fonts.
Download fonts using from here: http://www.reportlab.com/ftp/fonts/pfbfer.zip
Extract this zip file in: /usr/lib/python2.7/dist-packages/reportlab/fonts
Use this command to unzip it: unzip pfbfer.zip -d /usr/lib/python2.7/dist-packages/reportlab/fonts
Step 3: Now go to report template xml file in which you have created template for the report and just write this tag at the place where you want to display code in report:
<img t-att-src="'/report/barcode/?type=%s&value=%s&width=%s&height=%s' % ('Code128', o.name, 50, 50)" style="width:50px;height:50px;"/>
<img t-att-src="'/report/barcode/?type=%s&value=%s&width=%s&height=%s' % ('QR', o.name, 50, 50)" style="width:50px;height:50px;"/>
Step 4: Restart server, upgrade related module from database and print report.
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