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Creating Simple Employee Database with Python Homework Solution


Simple People Finder

Background

Every company has a database (or multiple databases) of its employees. In which, every employee’s information is stored in a well-designed structure. Managers can use this database to search employee information for different purposes (promotion, assignment, relocation, etc.).

In this assignment, you will implement a system that can

  1. Load a data file that contains 1000 data entries.
  2. Provide users a feature to search people by their first name.
  3. Output the search result to the user.

In real-life, employee information should be stored in a database system that is very complex and secure. In this assignment, we are not going to implement that database system, but try to utilize the data structure we learned in the past 2 weeks, which is List.

For example, if the user wants to search records with the first name “Terry”, your program should provide the user with the following 2 records:

Python Database

The user does not have to enter the data file name. Let’s say it is always by default a file named data.txt and it will always be put in the folder together with your program. Your program should continue asking for user input until the user types in “EXIT” or “exit”

Sample Output:

========================

| Simple People Finder |

========================

Loading data file... Done!

Enter the first name of the record: Terry [enter]

Searching...

Done!

Here are the results:

Record #1

User ID: 12

First Name: Terry

Last Name: Rennolds

Email: trennoldsb@yellowpages.com

Gender: Male

Login IP: 236.60.140.5

SIN: 397-03-9254

Record #2

User ID: 273

First Name: Terry

Last Name: Wallsam

Email: twallsam7k@wired.com

Gender: Male

Login IP: 96.99.102.176

SIN: 610-81-9486

Enter the first name of the record: Emily [enter]

Searching...

Done!

Here are the results:

There is no record found with the first name Emily.

Enter the first name of the record: exit [enter]

Thank you for using Simple People Finder. See you next time! =)

End of Processing...

Solution:

class Employee: def __init__(self, id, fName, lName, email, gender, ip, sin): self.id = id self.fName = fName self.lName = lName self.email = email self.gender = gender self.ip = ip self.sin = sin def get_id(self): return self.id def get_fName(self): return self.fName def get_lName(self): return self.lName def get_email(self): return self.email def get_gender(self): return self.gender def get_ip(self): return self.ip def get_sin(self): return self.sin def process_file(filename): f = open(filename, 'r') result = [] for line in f.readlines(): parts = line.split("\t") result.append(Employee(int(parts[0]), parts[1], parts[2], parts[3], parts[4], parts[5], parts[6])) f.close() return result def search(employees, name): result = [] for e in employees: if e.get_fName() == name: result.append(e) return result if __name__ == '__main__': employees = process_file('data.txt') while True: name = input("Please, enter first name to search: ") if name.lower() == 'exit': break result = search(employees, name) if len(result) == 0: print('No data found') print() else: for i in range(len(result)): print('Record #' + str(i+1)) print('User ID: ' + str(result[i].get_id())) print('First Name: ' + result[i].get_fName()) print('Last Name: ' + result[i].get_lName()) print('Email: ' + result[i].get_email()) print('Gender: ' + result[i].get_gender()) print('Login IP: ' + result[i].get_ip()) print('SIN: ' + result[i].get_sin())