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alecmunro/gist:1214125

Created September 13, 2011 15:34
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Template Method example
Raw
gistfile1.py
DEFAULT_EMAIL_TYPE = "text"
DEFAULT_RECIPIENT = "alecmunro@gmale.com"
DEFAULT_SUBJECT = "Good news, everyone!"
class EmailReporter(object):
email_type = DEFAULT_EMAIL_TYPE
def send_report(self, settings):
data = self.collect_data()
body = self.create_body(data)
self.send_email(data["recipient"], settings["sender"],
self.email_type, data["subject"], body)
def send_email(self, to, from, subject, body,
type=DEFAULT_EMAIL_TYPE):
...
def collect_data(self)
return {"recipient": DEFAULT_RECIPIENT,
"subject": DEFAULT_SUBJECT}
def create_body(self, data):
return "Bad news, everyone."
class HTMLEmailReporter(EmailReporter):
email_type = "html"
def collect_data(self):
base_data = super(HTMLEmailReporter, self)\
.collect_data()
base_data.update({
"analysis": "complete",
"recommendation": "immediate termination"
}
return base_data
def create_body(self, data):
return """<html><body>
Our analysis process is <em>{analysis}</em>.<br />
Based on this, we are recommending {recommendation}
of the project.</body></html>""".format(**data)
class TextEmailReporter(EmailReporter):
def collect_data(self):
base_data = super(TextEmailReporter, self)\
.collect_data()
base_data.update({
"analysis": "complete",
"steps": ["Buy Ferret Ranch", "???", "Profit!"]
}
return base_data
def create_body(self, data):
body = "Our analysis process is {analysis}.\n"\
"We determined that the process was as follows:\n"\
.format(**data)
for i, step in enumerate(data["steps"]):
body += "{0}. {1}".format(i+1, step)
return body
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