97 lines
2.8 KiB
Python
97 lines
2.8 KiB
Python
import os
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from table import Table
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from sql import SQL
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import mysql.connector
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from mysql.connector import Error
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def main():
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print("Bem-vindo!")
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print("Deseja utilizar um banco de dados (BD) ou um arquivo .csv (CSV)?")
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escolha = input()
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if escolha == "CSV":
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print("Espere os arquivos.csv carregarem...")
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#print("Digite a pasta onde estão os arquivos CSV:")
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#csv_folder = input()
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csv_folder = "./source"
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tables = {}
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# Seleciona todos o csv presentes na pasta
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for file in os.listdir(csv_folder):
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if file.endswith(".csv"):
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table_name = file.split(".")[0]
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table = Table(table_name)
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table.load_from_csv(f"{csv_folder}/{file}")
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tables[table_name] = table
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print("Tabelas carregadas:")
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print(tables.keys())
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while True:
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print("Digite a query [0 para sair]:")
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query = input()
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if query == "0":
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break
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sql = SQL(tables, query)
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sql.execute()
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print()
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elif escolha == "BD":
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try:
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tables = {}
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connection = mysql.connector.connect(host='localhost',
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database='employees',
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user='employeesdb',
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password='Employees1!')
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if connection.is_connected():
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print("Conectado ao employees-db")
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cursor = connection.cursor()
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cursor.execute("SHOW TABLES")
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tables_names = cursor.fetchall()
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for table_name in tables_names:
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# table_name = ('departments', )
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table_name = table_name[0]
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# table_name = 'departments'
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print('Carregando', table_name)
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tables[table_name] = Table(table_name)
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tables[table_name].load_from_mysql(table_name,cursor)
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tables[table_name].save_to_csv()
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print('Carregado', table_name)
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print("\n")
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while True:
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print("Digite a query [0 para sair]:")
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query = input()
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if query == "0":
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break
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sql = SQL(tables, query)
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sql.execute()
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print()
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except Error as e:
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print("Error while connecting to MySQL", e)
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finally:
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if connection.is_connected():
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cursor.close()
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connection.close()
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print("MySQL connection is closed")
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else:
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print("Fora do intervalo!")
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if __name__ == "__main__":
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main() |