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sql.py
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sql.py
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# tallylib/sql.py
import time
from datetime import datetime
from datetime import timedelta
from django.db import connection
# Local
# from yelp.models import AllReview # Django data model
'''
2020-01-10 Pay attention to the indexes created on the tables.
'''
###############################################################
# tallyds.yelp_review
###############################################################
# Query with Django data models
def getReviews(business_id,
starting_date,
ending_date):
sql = f'''
SELECT date,
text
FROM tallyds.yelp_review
WHERE business_id = '{business_id}'
AND datetime >= '{starting_date}'
AND datetime <= '{ending_date}'
ORDER BY datetime DESC;
'''
# return [[record.date, record.text]
# for record in AllReview.objects.raw(sql)] # query by Django data model
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return cursor.fetchall()
except Exception as e:
print(e)
# Query without Django data models
def getReviewCountMonthly(business_id,
number_of_months=12):
sql = f'''
SELECT extract(year from date)::INTEGER AS year,
extract(month from date)::INTEGER AS month,
count(*) AS count
FROM tallyds.yelp_review AS r
WHERE business_id = '{business_id}'
GROUP BY 1, 2
ORDER BY 1 DESC, 2 DESC
LIMIT {number_of_months};
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return a tuple
return cursor.fetchall()
except Exception as e:
print(e)
def getLatestReviewDate(business_id):
sql = f'''
SELECT datetime
FROM tallyds.yelp_review
WHERE business_id = '{business_id}'
ORDER BY datetime DESC
LIMIT 1;
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return [(datetime.datetime(2018, 10, 14, 0, 0),)]
return cursor.fetchall()
except Exception as e:
print(e)
return []
def getLatestReviews(business_id,
limit=200):
sql = f'''
SELECT date,
text,
stars::INTEGER
FROM tallyds.yelp_review
WHERE business_id = '{business_id}'
ORDER BY datetime DESC
LIMIT {limit};
'''
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of tuples
return cursor.fetchall()
def updateYelpReviews(business_id, data):
# data columns: datetime, star, text, review_id, user_id
if data is None or len(data)==0:
return 0 # returncode success
s0 = "INSERT INTO tallyds.yelp_review VALUES "
s1 = ""
for d in data:
d_datetime, d_date, d_time, d_now, d_text = "", "", "", "", ""
d_datetime = d[0].strftime('%Y-%m-%d %H:%M:%S')
d_date = d[0].strftime('%Y-%m-%d')
d_time = d[0].strftime('%H:%M:%S')
d_now = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
try:
d_text = d[2].replace("'", "''")
except Exception as e:
print(d)
print(e)
s1 = s1 + f"""\n ('{d[3]}', \
'{business_id}', \
'{d[4]}', \
{d[1]}, \
'{d_datetime}', \
'{d_date}', \
'{d_time}', \
'{d_text}', \
'{d_now}'),"""
# s2 = '''
# ON CONFLICT ON CONSTRAINT yelp_review_pkey
# DO UPDATE SET
# business_id = excluded.business_id,
# user_id = excluded.user_id,
# stars = excluded.stars,
# datetime = excluded.datetime,
# date = excluded.date,
# time = excluded.time,
# text = excluded.text,
# timestamp = excluded.timestamp;
# '''
s2 = '''
ON CONFLICT ON CONSTRAINT yelp_review_pkey
DO NOTHING;
'''
sql= s0 +s1[:-1] + s2
try:
with connection.cursor() as cursor:
cursor.execute(sql)
except Exception as e:
print(e)
return 1 # returncode 1 = failure
return 0 # returncode 0 = success
def getYelpReviews2(location='Phoenix',
categories='cafe,coffee',
limit=20000):
'''get Yelp reviews by location and categories'''
sql = f'''
SELECT r FROM tallyds.yelp_business AS b
JOIN tallyds.yelp_review AS r
ON b.business_id = r.business_id
WHERE location = '{location}'
AND categories = '{categories}'
LIIMT {limit};
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of texts
return [r[0] for r in cursor.fetchall()]
except Exception as e:
print(e)
###############################################################
# tallyds.yelp_reivew_log
###############################################################
def getLatestYelpReviewLog(business_id):
sql = f'''
SELECT datetime
FROM tallyds.yelp_review_log
WHERE business_id = '{business_id}'
ORDER BY datetime DESC
LIMIT 1;
'''
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of tuples
return cursor.fetchall()
def insertYelpReviewLog(business_id,
date):
sql = f"""
INSERT INTO tallyds.yelp_review_log VALUES
(
'{business_id}',
'{date.strftime('%Y-%m-%d')}',
CURRENT_TIMESTAMP
)
ON CONFLICT ON CONSTRAINT yelp_review_log_pkey
DO UPDATE SET
datetime = excluded.datetime,
timestamp = excluded.timestamp
;
"""
try:
with connection.cursor() as cursor:
cursor.execute(sql)
except Exception as e:
print(e)
###############################################################
# tallyds.job_log
###############################################################
def getJobLogs(business_id,
limit=100):
# uuid,
# business_id,
# job_type,
# job_status,
# timestamp,
# job_message
sql = f'''
SELECT *
FROM tallyds.job_log
WHERE business_id = '{business_id}'
ORDER BY timestamp DESC
LIMIT {limit};
'''
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of tuples
return cursor.fetchall()
def insertJobLogs(business_id,
job_type,
job_status,
job_message):
timestamp = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
sql = f'''\
INSERT INTO tallyds.job_log
VALUES (
uuid_generate_v4(),
'{business_id}',
{job_type},
{job_status},
'{timestamp}',
'{job_message}'
);'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
except Exception as e:
print(str(e))
return 1 # returncode failure
return 0 # returncode success
def getFailedJobLogs(job_type=0, # 0: triggered by task or job, 1: triggered by end users
timestamp=datetime.now().strftime('%Y-%m-%d')):
sql = f"""
SELECT DISTINCT ON (business_id) business_id, job_status
FROM tallyds.job_log
WHERE timestamp >= '{timestamp}'
ORDER BY business_id, timestamp DESC;
"""
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of business IDs
return [r[0] for r in cursor.fetchall() if r[1]==1]
except Exception as e:
print(str(e))
return []
###############################################################
# tallyds.job_config
###############################################################
def getJobConfig():
sql = """
SELECT * FROM tallyds.job_config;
"""
with connection.cursor() as cursor:
cursor.execute(sql)
return cursor.fetchall() # return a list of tuples
###############################################################
# tallyds.tally_business
###############################################################
def getTallyBusiness():
'''Businesses selected by Tally users'''
sql = '''
SELECT business_id
FROM tallyds.tally_business;
'''
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of strings
return [r[0] for r in cursor.fetchall()]
def isTallyBusiness(business_id):
sql = f"""
SELECT business_id
FROM tallyds.tally_business
WHERE business_id = '{business_id}';
"""
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of strings
return len(cursor.fetchall()) > 0
except Exception as e:
print(e)
return False
def insertTallyBusiness(business_ids):
if business_ids is None or len(business_ids) == 0:
return 0
s1 = ""
for business_id in business_ids:
s1 = s1 + f"('{business_id}', CURRENT_TIMESTAMP),"
sql = f"""
INSERT INTO tallyds.tally_business VALUES
{s1[:-1]}
ON CONFLICT ON CONSTRAINT tally_business_pkey
DO NOTHING;
"""
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return 0 # success
except Exception as e:
print(e)
return 1 # error
###############################################################
# tallyds.ds_vizdata
###############################################################
def updateVizdata(business_id,
viztype,
vizdata):
if vizdata is None or len(vizdata) == 0:
return 0
sql=f'''\
INSERT INTO tallyds.ds_vizdata VALUES
(
'{business_id}',
{viztype},
current_timestamp,
'{vizdata.replace("'", "''")}'
)
ON CONFLICT ON CONSTRAINT ds_vizdata_pkey
DO UPDATE SET
timestamp = excluded.timestamp,
vizdata = excluded.vizdata
;
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return 0 # success
except Exception as e:
print(e)
return 1 # failure
def getVizdataTimestamp(business_id,
viztype):
sql=f'''
SELECT timestamp
FROM tallyds.ds_vizdata
WHERE business_id = '{business_id}'
AND viztype = {viztype}
LIMIT 1;
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return cursor.fetchall() # return a list of tuples
except Exception as e:
print(e)
return 0
def getLatestVizdata(business_id,
viztype,
days=14):
timestamp = datetime.now() - timedelta(days=days)
sql=f'''
SELECT vizdata,
timestamp
FROM tallyds.ds_vizdata
WHERE business_id = '{business_id}'
AND viztype = {viztype}
AND timestamp >= '{timestamp.strftime('%Y-%m-%d')}';
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of tuples
return cursor.fetchall()
except Exception as e:
print(e)
return []
def deleteVizdata(business_id):
sql = """
DELETE FROM tallyds.ds_vizdata
WHERE business_id = '{business_id}';
"""
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return 0 # success
except Exception as e:
print(e)
return 1 # failure
###############################################################
# tallyds.ds_vizdata_log
###############################################################
def insertVizdataLog(business_id,
viztype,
triggeredby):
sql=f'''
INSERT INTO tallyds.ds_vizdata_log
VALUES (
uuid_generate_v4(),
'{business_id}',
{viztype},
'{datetime.now().strftime('%Y-%m-%d %H:%M:%S')}',
{triggeredby}
);
'''
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return 0 # success
except Exception as e:
print(e)
return 1 # failure
###############################################################
# tallyds.yelp_business
###############################################################
def insertYelpBusiness(businesses):
s1 = """
INSERT INTO tallyds.yelp_business
(business_id, city, timestamp, location, categories)
VALUES
"""
s2 = ""
for b in businesses:
# business_id, city, timestamp, location, categories
s2 = s2 + f"('{b[0]}', '{b[1]}', CURRENT_TIMESTAMP, '{b[2]}', '{b[3]}'),"
s3 = """\
ON CONFLICT ON CONSTRAINT yelp_business_pkey
DO UPDATE SET
timestamp = excluded.timestamp,
location = excluded.location,
categories = excluded.categories;
"""
sql = s1 + s2[:-1] + s3
try:
with connection.cursor() as cursor:
cursor.execute(sql)
return 0 # success
except Exception as e:
print(e)
return 1 # failure
def getYelpBusinessIDs(location='Phoenix',
categories='cafe,coffee'):
sql = f"""
SELECT business_id
FROM tallyds.yelp_business
WHERE location = '{location}'
AND categories = '{categories}';
"""
try:
with connection.cursor() as cursor:
cursor.execute(sql)
# return a list of business IDs
return [r[0] for r in cursor.fetchall()]
except Exception as e:
print(e)
return []