From f5cdde53777d981b57841e126c4ad32172e254b6 Mon Sep 17 00:00:00 2001
From: Denis Prusakov <Denikpr@gmail.com>
Date: Thu, 5 Oct 2023 22:27:18 +0300
Subject: [PATCH 1/3] homework1

---
 homework-1/create_tables.sql | 25 +++++++++++++++++++++++++
 homework-1/main.py           | 28 ++++++++++++++++++++++++++++
 pyproject.toml               | 14 ++++++++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 pyproject.toml

diff --git a/homework-1/create_tables.sql b/homework-1/create_tables.sql
index 2240c4efb..cc43b728a 100644
--- a/homework-1/create_tables.sql
+++ b/homework-1/create_tables.sql
@@ -1 +1,26 @@
 -- SQL-команды для создания таблиц
+CREATE TABLE employees
+(
+    employee_id int PRIMARY KEY,
+    first_name varchar(100) NOT NULL,
+  last_name varchar(100) NOT NULL,
+  title varchar(100) NOT NULL,
+  birth_date varchar(100) NOT NULL,
+  notes varchar(500) NOT NULL
+);
+
+CREATE TABLE customers
+(
+    customer_id varchar(10) PRIMARY KEY,
+    company_name varchar(100) NOT NULL,
+  contact_name varchar(100) NOT NULL
+);
+
+CREATE TABLE orders
+(
+    order_id int PRIMARY KEY,
+    customer_id varchar(10) NOT NULL REFERENCES customers(customer_id),
+  employee_id int NOT NULL REFERENCES employees(employee_id),
+  order_date varchar(100) NOT NULL,
+  ship_city varchar(100) NOT NULL
+);
\ No newline at end of file
diff --git a/homework-1/main.py b/homework-1/main.py
index 5b5e8ffd4..19afabbed 100644
--- a/homework-1/main.py
+++ b/homework-1/main.py
@@ -1 +1,29 @@
 """Скрипт для заполнения данными таблиц в БД Postgres."""
+import psycopg2
+import csv
+
+FILE_CUSTOMERS_DATA = 'north_data/customers_data.csv'
+FILE_EMPLOYEES_DATA = 'north_data/employees_data.csv'
+FILE_ORDERS_DATA = 'north_data/orders_data.csv'
+
+
+def insert_data_to_sql(filename, name_table):
+    with open(filename, 'r', encoding='UTF-8') as file:
+        data = csv.DictReader(file)
+        with psycopg2.connect(host="localhost", database="north", user="denis", password="123456") as conn:
+            with conn.cursor() as curs:
+                for row in data:
+                    row_data = []
+                    values_designation = []
+                    for key in list(row.keys()):
+                        row_data.append(row[key])
+                        values_designation.append('%s')
+                    curs.execute(f"INSERT INTO {name_table} VALUES ({', '.join(values_designation)})", tuple(row_data))
+                    row_data.clear()
+                    values_designation.clear()
+        conn.close()
+
+
+insert_data_to_sql(FILE_CUSTOMERS_DATA, 'customers')
+insert_data_to_sql(FILE_EMPLOYEES_DATA, 'employees')
+insert_data_to_sql(FILE_ORDERS_DATA, 'orders')
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 000000000..6e93d8793
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,14 @@
+[tool.poetry]
+name = "postgres-homeworks"
+version = "0.1.0"
+description = ""
+authors = ["Denis Prusakov <Denikpr@gmail.com>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.11"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

From 3a0f3d0f092fde74fb3d2f542b4d5391df5fbe77 Mon Sep 17 00:00:00 2001
From: Denis Prusakov <Denikpr@gmail.com>
Date: Thu, 5 Oct 2023 22:28:57 +0300
Subject: [PATCH 2/3] homework1

---
 homework-1/main.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/homework-1/main.py b/homework-1/main.py
index 19afabbed..13ffebacd 100644
--- a/homework-1/main.py
+++ b/homework-1/main.py
@@ -6,7 +6,6 @@
 FILE_EMPLOYEES_DATA = 'north_data/employees_data.csv'
 FILE_ORDERS_DATA = 'north_data/orders_data.csv'
 
-
 def insert_data_to_sql(filename, name_table):
     with open(filename, 'r', encoding='UTF-8') as file:
         data = csv.DictReader(file)

From fd43341a83f4096230a2d96e7ad34026455c6d3a Mon Sep 17 00:00:00 2001
From: Denis Prusakov <Denikpr@gmail.com>
Date: Thu, 5 Oct 2023 22:29:38 +0300
Subject: [PATCH 3/3] homework1

---
 homework-1/main.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/homework-1/main.py b/homework-1/main.py
index 13ffebacd..19afabbed 100644
--- a/homework-1/main.py
+++ b/homework-1/main.py
@@ -6,6 +6,7 @@
 FILE_EMPLOYEES_DATA = 'north_data/employees_data.csv'
 FILE_ORDERS_DATA = 'north_data/orders_data.csv'
 
+
 def insert_data_to_sql(filename, name_table):
     with open(filename, 'r', encoding='UTF-8') as file:
         data = csv.DictReader(file)