From ae516dc167dd4a2a8e57061e689ff6971c3d058e Mon Sep 17 00:00:00 2001
From: SafonovaEkaterina <doinikova-ekaterina@yandex.ru>
Date: Tue, 25 Oct 2022 20:39:42 +0300
Subject: [PATCH] add task lec.13

---
 Practice/esafonova/humans.db   | Bin 0 -> 12288 bytes
 Practice/esafonova/task13.1.py |  47 +++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 Practice/esafonova/humans.db
 create mode 100644 Practice/esafonova/task13.1.py

diff --git a/Practice/esafonova/humans.db b/Practice/esafonova/humans.db
new file mode 100644
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diff --git a/Practice/esafonova/task13.1.py b/Practice/esafonova/task13.1.py
new file mode 100644
index 0000000..7246253
--- /dev/null
+++ b/Practice/esafonova/task13.1.py
@@ -0,0 +1,47 @@
+# 1.Написать класс-обертку над SQLite (с возможностями менеджера контекста),
+# которая может на вход принимать строки SQL запросов и возвращать данные в формате json.
+# Класс должен иметь, как минимум, методы select и execute.
+import json
+import sqlite3 as sq
+
+
+class SqLiteWrapper:
+    def __init__(self, db_name):
+        with sq.connect(db_name) as self.con:
+            self.cur = self.con.cursor()
+
+    def select(self, req):
+        self.cur.execute(req)
+        data = self.cur.fetchall()
+        print(data)
+        response = []
+        for i in range(len(data)):
+            object_map = {}
+            for j in range(len(data[i])):
+                key = self.cur.description[j][0]
+                value = data[i][j]
+                object_map[key] = value
+            response.append(object_map)
+        return json.dumps(response)
+
+    def execute(self, req):
+        self.cur.executescript(req)
+        if 'CREATE' in req:
+            return json.dumps({'table': 'created'})
+        elif 'INSERT' in req:
+            return json.dumps({'data': 'inserted'})
+        elif 'DROP' in req:
+            return json.dumps({'table': 'dropped'})
+
+
+if __name__ == '__main__':
+    my_connector = SqLiteWrapper('humans.db')
+    print(my_connector.execute("""CREATE TABLE IF NOT EXISTS humans (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT,
+            age INTEGER
+        )"""))
+    print(my_connector.execute("INSERT INTO humans VALUES(1,'Mark',33)"))
+    print(my_connector.execute("INSERT INTO humans VALUES(2,'Petr',29)"))
+    print(my_connector.select("SELECT * FROM humans"))
+    print(my_connector.execute("DROP TABLE humans"))