event_updates/__init__.py

import webnotes

feed_dict = {
	# Project
	'Ticket':			['[%(status)s] %(subject)s', '#000080'],

	# Sales
	'Lead':				['%(lead_name)s', '#000080'],
	'Quotation':		['[%(status)s] To %(customer_name)s worth %(currency)s %(grand_total_export)s', '#4169E1'],
	'Sales Order':		['[%(status)s] To %(customer_name)s worth %(currency)s %(grand_total_export)s', '#4169E1'],

	# Purchase
	'Supplier':			['%(supplier_name)s, %(supplier_type)s', '#6495ED'],
	'Purchase Order':	['[%(status)s] %(name)s To %(supplier_name)s for %(currency)s  %(grand_total_import)s', '#4169E1'],

	# Stock
	'Delivery Note':	['[%(status)s] To %(customer_name)s', '#4169E1'],

	# Accounts
	'Journal Voucher':	['[%(voucher_type)s] %(name)s', '#4169E1'],
	'Payable Voucher':	['To %(supplier_name)s for %(currency)s %(grand_total_import)s', '#4169E1'],
	'Receivable Voucher':['To %(customer_name)s for %(currency)s %(grand_total_export)s', '#4169E1'],

	# HR
	'Expense Voucher':	['[%(approval_status)s] %(name)s by %(employee_name)s', '#4169E1'],
	'Salary Slip':		['%(employee_name)s for %(month)s %(fiscal_year)s', '#4169E1'],
	'Leave Transaction':['%(leave_type)s for %(employee)s', '#4169E1'],

	# Support
	'Customer Issue':	['[%(status)s] %(description)s by %(customer_name)s', '#000080'],
	'Maintenance Visit':['To %(customer_name)s', '#4169E1'],
	'Support Ticket':	['[%(status)s] %(subject)s', '#000080']
}

def make_feed(doc, subject, color):
	"makes a new Feed record"
	from webnotes.model.doc import Document
	webnotes.conn.sql("delete from tabFeed where doc_type=%s and doc_name=%s", (doc.doctype, doc.name))
	f = Document('Feed')
	f.doc_type = doc.doctype
	f.doc_name = doc.name
	f.subject = subject
	f.color = color
	f.save(1)
	
def update_feed(doc):	
	"adds a new feed"
	subject, color = feed_dict.get(doc.doctype, [None, None])
	if subject:
		subject = subject % doc.fields
		make_feed(doc, subject, color)