Python设计模式之MVC模式简单示例

#mvc.py
import sqlite4
import types
class DefectModel:
  def getDefectList(self, component):
    query = "select ID from defects where Component= '%s' " % component
    defectlist = self._dbselect(query)
    list = []
    for row in defectlist:
      list.append(row[0])
    return list
  def getSummary(self, id):
    query = "select summary from defects where ID='%d'" % id
    summary = self._dbselect(query)
    for row in summary:
      return row[0]
  def _dbselect(self, query):
    connection = sqlite3.connect('TMS')
    cursorObj = connection.cursor()
    results = cursorObj.execute(query)
    connection.commit()
    cursorObj.close()
    return results
class DefectView:
  def summary(self, summary, defectid):
    print "#### Defect Summary for defect# %d####%s\n" %(defectid, summary)
  def defectList(self, list, category):
    print "#### Defect List for %s ####\n" % category
    for defect in list:
      print defect
class Controller:
  def __init__(self):
    pass
  def getDefectSummary(self, defectid):
    model = DefectModel()
    view = DefectView()
    summary_data = model.getSummary(defectid)
    return view.summary(summary_data, defectid)
  def getDefectList(self, component):
    model = DefectModel()
    view = DefectView()
    defectlist_data = model.getDefectList(component)
    return view.defectList(defectlist_data, component)

import mvc
controller = mvc.Controller()
print controller.getDefectSummary(2)
print controller.getDefectList('ABC')