Lab08 submission - Abdullojon Muminov

address.py

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+import psycopg2
+from geopy.geocoders import Nominatim
+import time
+
+conn = psycopg2.connect(
+    host="localhost",
+    port=45432,
+    database="demo",
+    user="postgres",
+    password="postgres"
+)
+cur = conn.cursor()
+
+cur.execute("""
+    CREATE TABLE IF NOT EXISTS Address (
+        address_id SERIAL PRIMARY KEY,
+        address_text TEXT,
+        address_x FLOAT,
+        address_y FLOAT
+    );
+""")
+conn.commit()
+
+cur.execute("SELECT * FROM get_filtered_coordinates() LIMIT 10;")
+results = cur.fetchall()
+
+geolocator = Nominatim(user_agent="my_app")
+
+for row in results:
+    lon = row[2]
+    lat = row[3]
+
+    try:
+        location = geolocator.reverse(f"{lat}, {lon}")
+        address = location.address if location else "Address not found"
+    except:
+        address = "Geocoding failed"
+
+    cur.execute("""
+        INSERT INTO Address (address_text, address_x, address_y)
+        VALUES (%s, %s, %s)
+    """, (address, lon, lat))
+    conn.commit()
+
+    time.sleep(1)
+
+cur.close()
+conn.close()

func.sql

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+CREATE OR REPLACE FUNCTION get_filtered_coordinates()
+RETURNS TABLE (
+    airport_code character(3),
+    airport_name jsonb,
+    longitude double precision,
+    latitude double precision
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        a.airport_code,
+        a.airport_name,
+        a.coordinates[0] AS longitude,
+        a.coordinates[1] AS latitude
+    FROM airports_data a
+    WHERE 
+        a.coordinates[1] BETWEEN 35 AND 50
+        AND a.coordinates[0] BETWEEN 35 AND 50;
+END;
+$$ LANGUAGE plpgsql;