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create_schema_db.py
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create_schema_db.py
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import mysql.connector
import numpy as np
import os
import psycopg2
from dotenv import load_dotenv, find_dotenv
from v2_dictionaries_and_lists import *
load_dotenv()
############################################################################################################
'''Verify the credentials before running deployment. '''
############################################################################################################
# Tables creation
def create_tables():
''' Creates the table if it doesn't exists already.'''
try:
# Stablishes connection with our db
connection = psycopg2.connect(user=os.environ.get('aws_db_user'),
password=os.environ.get('aws_db_password'),
host=os.environ.get('aws_db_host'),
port=os.environ.get('aws_db_port'),
database=os.environ.get('aws_db_name'))
# Create the cursor.
cursor = connection.cursor()
query_countries_table='''
CREATE TABLE IF NOT EXISTS countries (
id SERIAL NOT NULL,
country_code VARCHAR(3) NOT NULL UNIQUE,
country_name CHAR(99),
PRIMARY KEY(country_code)
);
'''
cursor.execute(query_countries_table)
connection.commit()
query_markets_table= '''
CREATE TABLE IF NOT EXISTS markets (
id SERIAL NOT NULL,
market_id VARCHAR(99),
market_name VARCHAR(99),
country_code VARCHAR(3) REFERENCES countries(country_code),
PRIMARY KEY (market_id)
);
'''
cursor.execute(query_markets_table)
connection.commit()
query_currencies_table = '''
CREATE TABLE IF NOT EXISTS currencies (
id SERIAL NOT NULL,
currency_name VARCHAR(99),
currency_code VARCHAR(3) NOT NULL UNIQUE,
is_in_uganda BOOLEAN,
is_in_kenya BOOLEAN,
is_in_congo BOOLEAN,
is_in_burundi BOOLEAN,
is_in_tanzania BOOLEAN,
is_in_south_sudan BOOLEAN,
is_in_rwanda BOOLEAN,
is_in_malawi BOOLEAN,
PRIMARY KEY(currency_code)
);
'''
cursor.execute(query_currencies_table)
connection.commit()
query_sources_table = '''
CREATE TABLE IF NOT EXISTS sources (
id SERIAL NOT NULL,
source_name VARCHAR(99) NOT NULL,
is_in_uganda BOOLEAN,
is_in_kenya BOOLEAN,
is_in_congo BOOLEAN,
is_in_burundi BOOLEAN,
is_in_tanzania BOOLEAN,
is_in_south_sudan BOOLEAN,
is_in_rwanda BOOLEAN,
is_in_malawi BOOLEAN,
PRIMARY KEY (id)
);
'''
cursor.execute(query_sources_table)
connection.commit()
query_categories_table = '''
CREATE TABLE IF NOT EXISTS categories (
id SERIAL NOT NULL,
category_name VARCHAR(99) UNIQUE,
PRIMARY KEY(id)
);
'''
cursor.execute(query_categories_table)
connection.commit()
query_products_table = '''
CREATE TABLE IF NOT EXISTS products (
id SERIAL NOT NULL,
product_name VARCHAR(99) UNIQUE,
category_id INT REFERENCES categories(id),
PRIMARY KEY(product_name)
);
'''
cursor.execute(query_products_table)
connection.commit()
query_raw_table = '''
CREATE TABLE IF NOT EXISTS raw_table (
id SERIAL NOT NULL,
product_name VARCHAR(99) REFERENCES products(product_name),
market_id VARCHAR(99) REFERENCES markets(market_id),
unit_scale VARCHAR(32),
source_id INT REFERENCES sources(id),
currency_code VARCHAR(3) REFERENCES currencies(currency_code),
date_price DATE,
retail_observed_price float4,
wholesale_observed_price float4,
PRIMARY KEY(id)
);
'''
cursor.execute(query_raw_table)
connection.commit()
# query_bc_retail_prices_table = '''
# CREATE TABLE IF NOT EXISTS bc_retail_prices (
# id SERIAL NOT NULL,
# product_name VARCHAR(99) REFERENCES products(product_name),
# market_id VARCHAR(99) REFERENCES markets(market_id),
# market_name VARCHAR(99),
# country_code VARCHAR(3) REFERENCES countries(country_code),
# unit_scale VARCHAR(32),
# source_id INT REFERENCES sources(id),
# source_name VARCHAR(99),
# currency_code VARCHAR(3) REFERENCES currencies(currency_code),
# date_price DATE,
# observed_price float4,
# PRIMARY KEY(id)
# );
# '''
# cursor.execute(query_bc_retail_prices_table)
# connection.commit()
# query_bc_wholesale_prices_table = '''
# CREATE TABLE IF NOT EXISTS bc_wholesale_prices (
# id SERIAL NOT NULL,
# product_name VARCHAR(99) REFERENCES products(product_name),
# market_id VARCHAR(99) REFERENCES markets(market_id),
# market_name VARCHAR(99),
# country_code VARCHAR(3) REFERENCES countries(country_code),
# unit_scale VARCHAR(32),
# source_id INT REFERENCES sources(id),
# source_name VARCHAR(99),
# currency_code VARCHAR(3) REFERENCES currencies(currency_code),
# date_price DATE,
# observed_price float4,
# PRIMARY KEY(id)
# );
# '''
# cursor.execute(query_bc_wholesale_prices_table)
# connection.commit()
query_retail_prices_table = '''
CREATE TABLE IF NOT EXISTS retail_prices (
id SERIAL NOT NULL,
product_name VARCHAR(99) REFERENCES products(product_name),
market_id VARCHAR(99) REFERENCES markets(market_id),
market_name VARCHAR(99),
country_code VARCHAR(3) REFERENCES countries(country_code),
source_id INT REFERENCES sources(id),
source_name VARCHAR(99),
currency_code VARCHAR(3) REFERENCES currencies(currency_code),
unit_scale VARCHAR(32),
date_price DATE,
observed_price float4,
observed_alps_class VARCHAR(9),
alps_stressness float8,
alps_type_method VARCHAR(99),
observed_arima_alps_class VARCHAR(9),
arima_alps_stressness float8,
forecasted_price float4,
forecasted_class VARCHAR(9),
forecasting_model VARCHAR(99),
trending VARCHAR(9),
date_run_model DATE,
PRIMARY KEY(id)
);
'''
cursor.execute(query_retail_prices_table)
connection.commit()
query_wholesale_prices_table = '''
CREATE TABLE IF NOT EXISTS wholesale_prices (
id SERIAL NOT NULL,
product_name VARCHAR(99) REFERENCES products(product_name),
market_id VARCHAR(99) REFERENCES markets(market_id),
market_name VARCHAR(99),
country_code VARCHAR(3) REFERENCES countries(country_code),
source_id INT REFERENCES sources(id),
source_name VARCHAR(99),
currency_code VARCHAR(3) REFERENCES currencies(currency_code),
unit_scale VARCHAR(32),
date_price DATE,
observed_price float4,
observed_alps_class VARCHAR(9),
alps_stressness float8,
alps_type_method VARCHAR(99),
observed_arima_alps_class VARCHAR(9),
arima_alps_stressness float8,
forecasted_price float4,
forecasted_class VARCHAR(9),
forecasting_model VARCHAR(99),
trending VARCHAR(9),
date_run_model DATE,
PRIMARY KEY(id)
);
'''
cursor.execute(query_wholesale_prices_table)
connection.commit()
query_retail_bands_table = '''
CREATE TABLE IF NOT EXISTS retail_bands (
id SERIAL NOT NULL,
product_name VARCHAR(99) REFERENCES products(product_name),
market_id VARCHAR(99) REFERENCES markets(market_id),
source_id INT REFERENCES sources(id),
currency_code VARCHAR(3) REFERENCES currencies(currency_code),
unit_scale VARCHAR(32),
date_price DATE,
observed_price float4,
observed_class VARCHAR(9),
class_method VARCHAR(99),
normal_band_limit float8,
stress_band_limit float8,
alert_band_limit float8,
date_run_model DATE,
PRIMARY KEY(id)
);
'''
cursor.execute(query_retail_bands_table)
connection.commit()
query_wholesale_bands_table = '''
CREATE TABLE IF NOT EXISTS wholesale_bands (
id SERIAL NOT NULL,
product_name VARCHAR(99) REFERENCES products(product_name),
market_id VARCHAR(99) REFERENCES markets(market_id),
source_id INT REFERENCES sources(id),
currency_code VARCHAR(3) REFERENCES currencies(currency_code),
unit_scale VARCHAR(32),
date_price DATE,
observed_price float4,
observed_class VARCHAR(9),
class_method VARCHAR(99),
normal_band_limit float8,
stress_band_limit float8,
alert_band_limit float8,
date_run_model DATE,
PRIMARY KEY(id)
);
'''
cursor.execute(query_wholesale_bands_table)
connection.commit()
query_pulling_logs_table = '''
CREATE TABLE IF NOT EXISTS pulling_logs (
id SERIAL NOT NULL,
pulled_date DATE NOT NULL,
final_id float8 NOT NULL,
PRIMARY KEY(id)
);
'''
cursor.execute(query_pulling_logs_table)
connection.commit()
query_errors_logs_table = '''
CREATE TABLE IF NOT EXISTS error_logs (
id SERIAL NOT NULL,
product_name VARCHAR(99),
market_name VARCHAR(99),
country_code VARCHAR(3),
unit_scale VARCHAR(32),
source_name VARCHAR(99),
currency_code VARCHAR(3),
date_price DATE,
retail_observed_price float4,
wholesale_observed_price float4,
mysql_db_id INT,
error_date DATE,
possible_error VARCHAR(99),
PRIMARY KEY(id)
);
'''
cursor.execute(query_errors_logs_table)
connection.commit()
# query_qc_retail_table = '''
# CREATE TABLE IF NOT EXISTS qc_retail (
# id SERIAL NOT NULL,
# product_name VARCHAR(99),
# market_id VARCHAR(99),
# source_id INT,
# currency_code VARCHAR(3),
# unit_scale VARCHAR(32),
# start_date DATE,
# end_date DATE,
# timeliness float4,
# data_length float4,
# completeness float4,
# duplicates INT,
# mode_d INT,
# data_points INT,
# PRIMARY KEY(id)
# );
# '''
# cursor.execute(query_qc_retail_table)
# connection.commit()
# query_qc_wholesale_table = '''
# CREATE TABLE IF NOT EXISTS qc_wholesale (
# id SERIAL NOT NULL,
# product_name VARCHAR(99),
# market_id VARCHAR(99),
# source_id INT,
# currency_code VARCHAR(3),
# unit_scale VARCHAR(32),
# start_date DATE,
# end_date DATE,
# timeliness float4,
# data_length float4,
# completeness float4,
# duplicates INT,
# mode_d INT,
# data_points INT,
# PRIMARY KEY(id)
# );
# '''
# cursor.execute(query_qc_wholesale_table)
# connection.commit()
# cursor.close()
# connection.close()
return 'Success'
except (Exception, psycopg2.Error) as error:
print('Error verifying or creating the table.')
finally:
if (connection):
cursor.close()
connection.close()
def populate_basic_tables():
''' Populates the basic tables as countries, categories, currencies,
sources, product names, markets.
'''
try:
# Stablishes connection with our db
connection = psycopg2.connect(user=os.environ.get('aws_db_user'),
password=os.environ.get('aws_db_password'),
host=os.environ.get('aws_db_host'),
port=os.environ.get('aws_db_port'),
database=os.environ.get('aws_db_name'))
# Create the cursor.
cursor = connection.cursor()
for country in list(countries_dict.keys()):
country_code = countries_dict[country]['country_code']
country_name = countries_dict[country]['country_name']
# Verfies if the country already exists.
cursor.execute('''
SELECT country_code
FROM countries
WHERE country_code = %s
''', (country_code,))
country_exists = cursor.fetchall()
if not country_exists:
query_populate_countries = '''
INSERT INTO countries (
country_code,
country_name
)
VALUES (
%s,
%s
);
'''
cursor.execute(query_populate_countries,(country_code, country_name))
connection.commit()
else:
print(country_name, 'already in countries table.')
for country in list(countries_dict.keys()):
country_code = countries_dict[country]['country_code']
country_name = countries_dict[country]['country_name']
for market in markets_country[country_code]:
# This market id will prevent to duplicates in case
# there's a market with the same name in other country.
market_id = market + ' : ' + country_code
# Verfies if the market already exists.
cursor.execute('''
SELECT market_id
FROM markets
WHERE market_id = %s
''', (market_id,))
market_exists = cursor.fetchall()
if not market_exists:
query_populate_markets = '''
INSERT INTO markets (
market_id,
market_name,
country_code
)
VALUES (
%s,
%s,
%s
);
'''
cursor.execute(query_populate_markets,(market_id, market, country_code))
connection.commit()
else:
print(market, 'already in markets table for the country', country_name, '.')
for currency in list(currencies_country.keys()):
# Verfies if the currency already exists.
cursor.execute('''
SELECT currency_code
FROM currencies
WHERE currency_code = %s
''', (currency,))
currency_exists = cursor.fetchall()
if not currency_exists:
is_in_uganda = False
is_in_kenya = False
is_in_congo = False
is_in_burundi = False
is_in_tanzania = False
is_in_south_sudan = False
is_in_rwanda = False
is_in_malawi = False
if 'UGA' in currencies_country[currency]:
is_in_uganda = True
else:
pass
if 'KEN' in currencies_country[currency]:
is_in_kenya = True
else:
pass
if 'DRC' in currencies_country[currency]:
is_in_congo = True
else:
pass
if 'BDI' in currencies_country[currency]:
is_in_burundi = True
else:
pass
if 'TZA' in currencies_country[currency]:
is_in_tanzania = True
else:
pass
if 'SSD' in currencies_country[currency]:
is_in_south_sudan = True
else:
pass
if 'RWA' in currencies_country[currency]:
is_in_rwanda = True
else:
pass
if 'MWI' in currencies_country[currency]:
is_in_malawi = True
else:
pass
query_populate_currencies = '''
INSERT INTO currencies (
currency_code,
is_in_uganda,
is_in_kenya,
is_in_congo,
is_in_burundi,
is_in_tanzania,
is_in_south_sudan,
is_in_rwanda,
is_in_malawi
)
VALUES (
%s,
%s,
%s,
%s,
%s,
%s,
%s,
%s,
%s
);
'''
cursor.execute(query_populate_currencies,(currency,is_in_uganda,is_in_kenya,
is_in_congo,is_in_burundi,is_in_tanzania,is_in_south_sudan,
is_in_rwanda,is_in_malawi))
connection.commit()
else:
print(currency, 'already in currencies table.')
for source in list(sources_country.keys()):
# Verfies if the currency already exists.
cursor.execute('''
SELECT source_name
FROM sources
WHERE source_name = %s
''', (source,))
source_exists = cursor.fetchall()
if not source_exists:
is_in_uganda = False
is_in_kenya = False
is_in_congo = False
is_in_burundi = False
is_in_tanzania = False
is_in_south_sudan = False
is_in_rwanda = False
is_in_malawi = False
if 'UGA' in sources_country[source]:
is_in_uganda = True
else:
pass
if 'KEN' in sources_country[source]:
is_in_kenya = True
else:
pass
if 'DRC' in sources_country[source]:
is_in_congo = True
else:
pass
if 'BDI' in sources_country[source]:
is_in_burundi = True
else:
pass
if 'TZA' in sources_country[source]:
is_in_tanzania = True
else:
pass
if 'SSD' in sources_country[source]:
is_in_south_sudan = True
else:
pass
if 'RWA' in sources_country[source]:
is_in_rwanda = True
else:
pass
if 'MWI' in sources_country[source]:
is_in_malawi = True
else:
pass
query_populate_sources = '''
INSERT INTO sources (
source_name,
is_in_uganda,
is_in_kenya,
is_in_congo,
is_in_burundi,
is_in_tanzania,
is_in_south_sudan,
is_in_rwanda,
is_in_malawi
)
VALUES (
%s,
%s,
%s,
%s,
%s,
%s,
%s,
%s,
%s
);
'''
cursor.execute(query_populate_sources,(source,is_in_uganda,is_in_kenya,
is_in_congo,is_in_burundi,is_in_tanzania,is_in_south_sudan,
is_in_rwanda,is_in_malawi))
connection.commit()
else:
print(source, 'already in sources table.')
for cat in categories_list:
# Verfies if the category already exists.
cursor.execute('''
SELECT category_name
FROM categories
WHERE category_name = %s
''', (cat,))
category_exists = cursor.fetchall()
if not category_exists:
query_populate_categories = '''
INSERT INTO categories (
category_name
)
VALUES (
%s
);
'''
cursor.execute(query_populate_categories,(cat,))
connection.commit()
else:
print(cat, 'already in categories table.')
for cat in list(cat_broken_down.keys()):
for product in cat_broken_down[cat]:
# Verfies if the product already exists.
cursor.execute('''
SELECT product_name
FROM products
WHERE product_name = %s
''', (product,))
product_exists = cursor.fetchall()
if not product_exists:
cursor.execute('''
SELECT id
FROM categories
WHERE category_name = %s
''', (cat,))
category_id = cursor.fetchall()[0][0]
query_populate_products = '''
INSERT INTO products (
product_name,
category_id
)
VALUES (
%s,
%s
);
'''
cursor.execute(query_populate_products,(product, category_id))
connection.commit()
else:
print(product, 'already in products table.')
# cursor.close()
# connection.close()
except (Exception, psycopg2.Error) as error:
print('Error inserting or verifying the sources value.')
finally:
if (connection):
cursor.close()
connection.close()
print('Connection closed.')
if __name__ == "__main__":
create_tables()
populate_basic_tables()