{"id":136025,"date":"2024-05-04T19:59:56","date_gmt":"2024-05-04T14:29:56","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=136025"},"modified":"2024-05-04T19:59:56","modified_gmt":"2024-05-04T14:29:56","slug":"enterprise-application-development-using-orm-architecture-in-python-part-3","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/enterprise-application-development-using-orm-architecture-in-python-part-3\/","title":{"rendered":"Enterprise Application Development using ORM Architecture in Python Part &#8211; 3"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">import myconnection as mcon\r\nimport model\r\nclass EmployeeDAO:\r\n\r\n    def __init__(self):\r\n        self.con = mcon.MyConnection.getConnection()\r\n        self.cur = self.con.cursor()\r\n       # print(\"Connection sucess\")\r\n\r\n    def insertEmployee(self,E):\r\n      try:\r\n        sql=\"insert into employee values('%d','%s','%s','%d')\"\r\n        value=(E.getid(),E.getname(),E.getdept(),E.getsalary())\r\n        self.cur.execute(sql % value)\r\n        self.con.commit()\r\n      except Exception as obj:\r\n          print(obj)\r\n\r\n    def searchAll(self):\r\n        mylist=[]\r\n        try:\r\n            sql=\"select * from employee\"\r\n            self.cur.execute(sql)\r\n            result=self.cur.fetchall()\r\n            for row in result:\r\n                E1 = model.Employee()\r\n                E1.setid(row[0])\r\n                E1.setname(row[1])\r\n                E1.setdept(row[2])\r\n                E1.setsalary(row[3])\r\n                mylist.append(E1)\r\n\r\n            return mylist\r\n        except Exception as obj:\r\n            print(obj)\r\n\r\n    def searchEmployee(self,empid):\r\n        try:\r\n             sql=\"select * from employee where eid=%d\"\r\n             self.cur.execute(sql % empid)\r\n             if(self.cur.rowcount&gt;0):\r\n                result=self.cur.fetchone()\r\n                E1=model.Employee()\r\n                E1.setid(result[0])\r\n                E1.setname(result[1])\r\n                E1.setdept(result[2])\r\n                E1.setsalary(result[3])\r\n                return E1\r\n             else:\r\n                E1=None\r\n                return E1\r\n        except Exception as msg:\r\n            print(msg)\r\n\r\n\r\n    def deleteEmployee(self,empid):\r\n        sql=\"delete from employee where eid=%d\"\r\n        self.cur.execute(sql %empid)\r\n        self.con.commit()\r\n\r\n    def updateEmployee(self,E):\r\n        sql=\"update employee set ename='%s',dept='%s',salary='%d' where eid='%d'\"\r\n        value = (E.getname(), E.getdept(), E.getsalary(),E.getid())\r\n        self.cur.execute(sql % value)\r\n        self.con.commit()\r\n\r\n    def __del__(self):\r\n        self.con.close()\r\n       # print(\"Connection closed\")<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">import myconnection as ms\r\nimport model\r\nimport employeedao as empd\r\ned=empd.EmployeeDAO()\r\nmylist1=ed.searchAll()\r\nfor emp in mylist1:\r\n    print(emp.getid(),end=\" \")\r\n    print(emp.getname(),end=\" \")\r\n    print(emp.getdept(),end=\" \")\r\n    print(emp.getsalary())\r\n\r\n\r\n# for row in mylist:\r\n#     E=row[0]\r\n#     print(E.getid())\r\n#     print(E.getname())\r\n\r\n\r\n# E1=model.Employee()\r\n# empid=int(input(\"Enter Employee ID:\"))\r\n# empname=input(\"Enter Employee Name for Update:\")\r\n# empdept=input(\"Enter Employee Department for Update:\")\r\n# empsal = int(input(\"Enter Employee Salary for Update:\"))\r\n# E1.setid(empid)\r\n# E1.setname(empname)\r\n# E1.setdept(empdept)\r\n# E1.setsalary(empsal)\r\n# ed=empd.EmployeeDAO()\r\n# ed.updateEmployee(E1)\r\n# print(\"Record Updated.....\")\r\n\r\n\r\n\r\n# DELETE CODE\r\n# empid=int(input(\"Enter Employee ID for Delete:\"))\r\n# ed=empd.EmployeeDAO()\r\n# E=ed.searchEmployee(empid)\r\n# if(E==None):\r\n#     print(\".....No Record Found.....\")\r\n# else:\r\n#     print(\"Emp ID:\",E.getid())\r\n#     print(\"Emp NAME:\",E.getname())\r\n#     print(\"Emp DEPT:\",E.getdept())\r\n#     print(\"Emp SALARY:\",E.getsalary())\r\n#     choice=input(\"Are you sure want delete(yes\/no): \")\r\n#     if(choice=='yes'):\r\n#         ed.deleteEmployee(empid)\r\n#         print(\"Record deleted.....\")\r\n\r\n\r\n# E1=model.Employee()\r\n# empid=int(input(\"Enter Employee ID:\"))\r\n# empname=input(\"Enter Employee Name:\")\r\n# empdept=input(\"Enter Employee Department:\")\r\n# empsal = int(input(\"Enter Employee Salary:\"))\r\n#\r\n# E1.setid(empid)\r\n# E1.setname(empname)\r\n# E1.setsalary(empsal)\r\n# E1.setdept(empdept)\r\n#\r\n# ed=empd.EmployeeDAO()\r\n# ed.insertEmployee(E1)\r\n#\r\n# print(\"Record Inserted.........\")<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 import myconnection as mcon import model class EmployeeDAO: def __init__(self): self.con = mcon.MyConnection.getConnection() self.cur = self.con.cursor() # print(&#8220;Connection sucess&#8221;) def insertEmployee(self,E): try: sql=&#8221;insert into employee values(&#8216;%d&#8217;,&#8217;%s&#8217;,&#8217;%s&#8217;,&#8217;%d&#8217;)&#8221; value=(E.getid(),E.getname(),E.getdept(),E.getsalary()) self.cur.execute(sql % value) self.con.commit() except&#46;&#46;&#46;<\/p>\n","protected":false},"author":86671,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[31768,31773,31767,31774,10333,28626,22366],"class_list":["post-136025","post","type-post","status-publish","format-standard","hentry","category-python","tag-enterprise-application-development","tag-enterprise-application-development-in-python","tag-enterprise-application-development-using-orm-architecture-in-python","tag-orm-architecture","tag-python","tag-python-practical","tag-python-program"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Enterprise Application Development using ORM Architecture in Python Part - 3 - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/enterprise-application-development-using-orm-architecture-in-python-part-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enterprise Application Development using ORM Architecture in Python Part - 3 - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 import myconnection as mcon import model class EmployeeDAO: def __init__(self): self.con = mcon.MyConnection.getConnection() self.cur = self.con.cursor() # print(&quot;Connection sucess&quot;) def insertEmployee(self,E): try: sql=&quot;insert into employee values(&#039;%d&#039;,&#039;%s&#039;,&#039;%s&#039;,&#039;%d&#039;)&quot; value=(E.getid(),E.getname(),E.getdept(),E.getsalary()) self.cur.execute(sql % value) self.con.commit() except&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/enterprise-application-development-using-orm-architecture-in-python-part-3\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-04T14:29:56+00:00\" \/>\n<meta name=\"author\" content=\"TechVidvan Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"TechVidvan Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Enterprise Application Development using ORM Architecture in Python Part - 3 - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/enterprise-application-development-using-orm-architecture-in-python-part-3\/","og_locale":"en_US","og_type":"article","og_title":"Enterprise Application Development using ORM Architecture in Python Part - 3 - DataFlair","og_description":"Program 1 import myconnection as mcon import model class EmployeeDAO: def __init__(self): self.con = mcon.MyConnection.getConnection() self.cur = self.con.cursor() # 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