old_01

doners/Shop-bot/utils/__init__.py

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+from . import db

doners/Shop-bot/utils/db/__init__.py

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+from .storage import DatabaseManager

doners/Shop-bot/utils/db/storage.py

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+
+import sqlite3 as lite
+
+class DatabaseManager(object):
+
+    def __init__(self, path):
+        self.conn = lite.connect(path)
+        self.conn.execute('pragma foreign_keys = on')
+        self.conn.commit()
+        self.cur = self.conn.cursor()
+
+    def create_tables(self):
+        self.query('CREATE TABLE IF NOT EXISTS products (idx text, title text, body text, photo blob, price int, tag text)')
+        self.query('CREATE TABLE IF NOT EXISTS orders (cid int, usr_name text, usr_address text, products text)')
+        self.query('CREATE TABLE IF NOT EXISTS cart (cid int, idx text, quantity int)')
+        self.query('CREATE TABLE IF NOT EXISTS categories (idx text, title text)')
+        self.query('CREATE TABLE IF NOT EXISTS wallet (cid int, balance real)')
+        self.query('CREATE TABLE IF NOT EXISTS questions (cid int, question text)')
+        
+    def query(self, arg, values=None):
+        if values == None:
+            self.cur.execute(arg)
+        else:
+            self.cur.execute(arg, values)
+        self.conn.commit()
+
+    def fetchone(self, arg, values=None):
+        if values == None:
+            self.cur.execute(arg)
+        else:
+            self.cur.execute(arg, values)
+        return self.cur.fetchone()
+
+    def fetchall(self, arg, values=None):
+        if values == None:
+            self.cur.execute(arg)
+        else:
+            self.cur.execute(arg, values)
+        return self.cur.fetchall()
+
+    def __del__(self):
+        self.conn.close()
+
+
+'''
+
+products: idx text, title text, body text, photo blob, price int, tag text
+
+orders: cid int, usr_name text, usr_address text, products text
+
+cart: cid int, idx text, quantity int ==> product_idx
+
+categories: idx text, title text
+
+wallet: cid int, balance real
+
+questions: cid int, question text
+
+'''