Develop Reference

Update Values in Mysql

from dataa import *
dataman = mysql.connector.connect(host='localhost', user='root', passwd='12345678', database='basictest')
databoy = dataman.cursor()
with open('data.txt') as g:
data = g.read().split('\n')
vl = ['']
vm = ['SELECT Name FROM Patient', 'SELECT DOB FROM Patient', 'SELECT Email FROM Patient',
'SELECT Username FROM Patient', 'SELECT Password FROM Patient', 'SELECT Mobile FROM Patient']
x = 0
for j, i in zip(data, vm):
if
vl[0] = j
x += 1
databax = ("INSERT INTO Patient(Name) VALUES(%s)")
d = [('a')]
databoy.execute(databax, d)
dataman.commit()
print(x)
I want to append each value of J to each column seperately. Only thing I can do is that append all of that to same column . on addition of other column, it throws an error. What can I do. No use of classes will be apppreciated. Can I select each column seperately and update it each time I update the form. This is the registration form of a application

Python query wrong output

I had a query that should return all permittedUserId when userId matched with what was supplied my the user. I wanted to use the result of the query for a different query and noticed I kept getting the same output.
sql = "SELECT permittedUserId FROM PermittedSharedUSer WHERE PermittedSharedUSer.userId = %s"
Here is what the table looks like
Why do I get this output?
[{'num': 3}, {'num': 3}, {'num': 3}, {'num': 3}]
The output I want should be number 7,6,2,3, not 3,3,3,3
Here's the whole code:
self.ensureConnected()
applicationUser = (content['userID'], )
sql = "SELECT permitedUserId FROM PermittedSharedUSer WHERE PermittedSharedUSer.userId = %s"
crows = self.cursor.execute(sql, applicationUser)
result = self.cursor.fetchall()
if(len(result) > 0 ):
d = collections.OrderedDict()
objects_list = []
for row in result:
d['num'] = row[0]
#sqlname = "SELECT name , username FROM Users WHERE Users.id=%s"
#valname = (row[0],)
#self.cursor.execute(sqlname,valname)
#resultName = self.cursor.fetchall()
#for row2 in resultName:
# d['name'] = row2[0]
# d['username'] = row2[1]
objects_list.append(d)
return (json.dumps(dict(data = objects_list), default=str), 200)
elif(crows ==None):
return (json.dumps(dict(data = "empty")), 200)

Here's a sample table which I created in SQL
and the code to fetch the data from it
import mysql.connector
db = mysql.connector.connect(host='localhost',user='root',passwd='5548',database='test')
cursor =db.cursor()
n='1'
cursor.execute("select permission from test where userid = %s",(n,))
v = cursor.fetchall()
for i in v:
print(i[0],end=" ")
and the output is
7 6 2 4
Hence, the way you are establishing the connection and retrieving the data is fine.
Looking at the for loop - I can see the probable error
objects_list.append(d)
should be
objects_list.append(d['num'])
The code should look like this
applicationUser = (content['userID'], )
sql = "SELECT permitedUserId FROM PermittedSharedUSer WHERE PermittedSharedUSer.userId = %s"
crows = self.cursor.execute(sql, applicationUser)
result = self.cursor.fetchall()
if(len(result) > 0 ):
d = collections.OrderedDict()
objects_list = []
for row in result:
d['num'] = row[0]
#sqlname = "SELECT name , username FROM Users WHERE Users.id=%s"
#valname = (row[0],)
#self.cursor.execute(sqlname,valname)
#resultName = self.cursor.fetchall()
#for row2 in resultName:
# d['name'] = row2[0]
# d['username'] = row2[1]
objects_list.append(d['num'])

Inserting an array of points into postgres from python

I have a table, region, defined
place_id | integer |
pts | point[] |
region_name | text |
region_id | integer | not null default nextval('region_region_id_seq'::regclass)
and would like to insert a row from python.
I have an array pgon
'{{-171.01155,-11.05869},{-171.01116,-11.06022},{-171.01138,-11.07814},{-171.01708,-11.08953},{-171.01963,-11.09463},{-171.03217,-11.10509},{-171.04886,-11.10929},{-171.07441,-11.11013},{-171.09834,-11.10787},{-171.10588,-11.10552},{-171.12063,-11.10091},{-171.13384,-11.09055},{-171.13385,-11.09055},{-171.13386,-11.09054},{-171.13387,-11.09053},{-171.13386,-11.09053},{-171.13384,-11.09053},{-171.13383,-11.09053},{-171.13529,-11.08719},{-171.13966,-11.07717},{-171.14112,-11.07383},{-171.14113,-11.07382},{-171.14114,-11.07382},{-171.14115,-11.07382},{-171.14191,-11.06076},{-171.14118,-11.04661},{-171.14116,-11.04622},{-171.13745,-11.03009},{-171.12577,-11.0156},{-171.1114,-11.00379},{-171.09488,-10.9978},{-171.08485,-10.9975},{-171.07463,-10.9972},{-171.05771,-10.99903},{-171.05163,-11.00014},{-171.03634,-11.00291},{-171.03358,-11.00409},{-171.0279,-11.00652},{-171.01928,-11.01225},{-171.01876,-11.01339},{-171.01407,-11.0237},{-171.01238,-11.04712}}'
place_id = 6, name = "American Samoa"
My python command line is:
cur.execute("insert into region (place_id,pts,region_name) values (%,%,%)",(place_id, pgon, name))
But I get
ValueError: "unsupported format character ',' (0x2c) at index 55"
I have done inserts before, but not with point[] in the target. Can someone tell me how I should be doing this? Thanks.

create table t (p point[]);
Using the adapter example from the documentation:
from psycopg2.extensions import adapt, register_adapter, AsIs
class Point(object):
def __init__(self, x, y):
self.x = x
self.y = y
def adapt_point(point):
x = adapt(point.x).getquoted()
y = adapt(point.y).getquoted()
return AsIs("'(%s, %s)'" % (x, y))
register_adapter(Point, adapt_point)
my_tuples_list = [(-171.01155,-11.05869),(-171.01116,-11.06022),(-171.01138,-11.07814),(-171.01708,-11.08953),(-171.01963,-11.09463),(-171.03217,-11.10509),(-171.04886,-11.10929),(-171.07441,-11.11013),(-171.09834,-11.10787),(-171.10588,-11.10552),(-171.12063,-11.10091),(-171.13384,-11.09055),(-171.13385,-11.09055),(-171.13386,-11.09054),(-171.13387,-11.09053),(-171.13386,-11.09053),(-171.13384,-11.09053),(-171.13383,-11.09053),(-171.13529,-11.08719),(-171.13966,-11.07717),(-171.14112,-11.07383),(-171.14113,-11.07382),(-171.14114,-11.07382),(-171.14115,-11.07382),(-171.14191,-11.06076),(-171.14118,-11.04661),(-171.14116,-11.04622),(-171.13745,-11.03009),(-171.12577,-11.0156),(-171.1114,-11.00379),(-171.09488,-10.9978),(-171.08485,-10.9975),(-171.07463,-10.9972),(-171.05771,-10.99903),(-171.05163,-11.00014),(-171.03634,-11.00291),(-171.03358,-11.00409),(-171.0279,-11.00652),(-171.01928,-11.01225),(-171.01876,-11.01339),(-171.01407,-11.0237),(-171.01238,-11.04712)]
my_point_list = [Point(p[0], p[1]) for p in my_tuples_list]
conn = psycopg2.connect(database='cpn')
cursor = conn.cursor()
insert = "insert into t (p) values (%s::point[])"
cursor.execute(insert, (my_point_list,))
conn.commit()

I got this running. Code is below. The point[] gets to PG. Now unfortunately, cur.fetchall() throws an exception after cur.execute("select * from test;")
#!/usr/bin/python
import psycopg2
from config import *
dbname="test"
try:
dbconn = psycopg2.connect(dbname=dbname, host=dbHost, port=5432, user=dbUser,password=dbPassword)
cur = dbconn.cursor()
except:
print "Error : Unable to open database\n"
poly="-94.26958,33.56679 -94.26926,33.56763 -94.23197,33.55209"
poly=poly.replace(" ",")\",\"(")
poly="{\"("+poly+")\"}"
try:
cur.execute("drop table if exists test;");
cur.execute("CREATE TABLE test (id serial PRIMARY KEY, num integer, anum integer[],pt point, apt point[],nm text);")
cur.execute("insert into test (num,apt,nm) values (%s,%s,%s) returning *",[1,poly,"fred"])
dbconn.commit()
cur.execute("select * from test;")
print cur.fetchall()
except psycopg2.Error as e :
print e.pgerror

targetConn = pg.connect(dbname='', user='', host='127.0.0.1', password='root')
targetCursor = targetConn.cursor()
class Point(object):
def __init__(self, x, y):
self.x = x
self.y = y
def adapt_point(point):
x = adapt(point.x)
y = adapt(point.y)
return AsIs("'(%s, %s)'" % (x, y))
register_adapter(Point, adapt_point)
targetCursor.execute("INSERT INTO point (point) VALUES (%s)",
(Point(1.23, 4.56),))
targetConn.commit()
targetConn.close()

Python does not commit on insert query

I am trying to bulk insert locations on wordpress. I have defined functions to check and adding terms and taxonomy
def checkTerm(term,con):
cur = con.cursor()
query = "SELECT term_id FROM wp_terms as t WHERE t.name = '%s'" % term
print query
cur.execute(query)
rows = cur.fetchall()
if rows: return rows[0][0]
else : return None
def addTerm(term,slug,con):
cur = con.cursor()
try:
query = "INSERT INTO `wp_terms` (`name`,`slug`,`term_group`) VALUES ('%s','%s',0)" % (term,slug)
print query
cur.execute(query)
con.commit()
rows = checkTerm(term,con)
if rows: return rows[0][0]
else : return None
except:
return None
def checkTaxonomy(term_id,con):
cur = con.cursor()
query = "SELECT tt.term_taxonomy_id,tt.parent FROM wp_term_taxonomy AS tt INNER JOIN wp_terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = 'project_location' AND t.term_id = '%s'" % term_id
print query
cur.execute(query)
rows = cur.fetchall()
if rows: return rows
else : return None
def addTaxonomy(term_id,taxonomy,description,parent,count,con):
cur = con.cursor()
query = "INSERT INTO `wp_term_taxonomy` (`term_id`,`taxonomy`,`description`,`parent`,`count`) VALUES ('%s','%s','%s','%s','%s')" % (term_id,taxonomy,description,parent,count)
print query
cur.execute(query)
con.commit()
rows = checkTaxonomy(term_id,con)
if rows: return rows
else: return None
I store cities in dictionary of dicionaries
df = pd.read_table('./Argentina.csv',sep='\t',header=None,engine='python')
for line in xrange(len(df)):
stringa = str(df[17][line])
location = str(df[1][line])
population = int(df[14][line])
if population < limit_pop: continue
string_state = stringa.split("/")
country = string_state[1]
state = string_state[2]
if not country in states:
states[country] = {}
if not state in states[country]:
states[country][state] = [location]
else :
states[country][state].append(location)
Then I try to insert terms and taxonomies in the wordpress db
con = mdb.connect('localhost', 'root', 'mypassword, 'Wordpress')
for country in states:
country_id = checkTerm(country.replace("_"," "),con)
if not country_id:
country_id = addTerm(country.replace("_"," "),country,con)
taxonomy = checkTaxonomy(country_id,con)
if not taxonomy:
taxonomy = addTaxonomy(country_id,'project_location','','0','0',con)
parent = dict((y, x) for x, y in taxonomy)
if not 0 in parent:
taxonomy = addTaxonomy(country_id,'project_location','','0','0',con)
for state in states[country]:
state_id = checkTerm(state.replace("_"," "),con)
if not state_id:
state_id = addTerm(state.replace("_"," "),state,con)
taxonomy = checkTaxonomy(state_id,con)
if not taxonomy:
taxonomy = addTaxonomy(state_id,'project_location','',country_id,'0',con)
parent = dict((y, x) for x, y in taxonomy)
if not country_id in parent:
taxonomy = addTaxonomy(state_id,'project_location','',country_id,'0',con)
for location in states[country][state]:
location_id=checkTerm(location.replace("_"," "),con)
if not location_id:
location_id = addTerm(location.replace("_"," "),location,con)
taxonomy = checkTaxonomy(location_id,con)
if not taxonomy:
taxonomy = addTaxonomy(location_id,'project_location','',state_id,'0',con)
parent = dict((y, x) for x, y in taxonomy)
if not state_id in parent:
taxonomy = addTaxonomy(location_id,'project_location','',state_id,'0',con)
When I try to execute the script I found this behaviour
SELECT term_id FROM wp_terms as t WHERE t.name = 'Argentina'
INSERT INTO `wp_terms` (`name`,`slug`,`term_group`) VALUES ('Argentina','Argentina',0)
SELECT term_id FROM wp_terms as t WHERE t.name = 'Argentina'
SELECT tt.term_taxonomy_id,tt.parent FROM wp_term_taxonomy AS tt INNER JOIN wp_terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = 'project_location' AND t.term_id = 'None'
INSERT INTO `wp_term_taxonomy` (`term_id`,`taxonomy`,`description`,`parent`,`count`) VALUES ('None','project_location','','0','0')
SELECT tt.term_taxonomy_id,tt.parent FROM wp_term_taxonomy AS tt INNER JOIN wp_terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = 'project_location' AND t.term_id = 'None'
And the script stop with the following error
./import.py:59: Warning: Truncated incorrect DOUBLE value: 'None'
cur.execute(query)
./import.py:69: Warning: Incorrect integer value: 'None' for column 'term_id' at row 1
cur.execute(query)
Traceback (most recent call last):
File "./import.py", line 115, in <module>
parent = dict((y, x) for x, y in taxonomy)
TypeError: 'NoneType' object is not iterable
This means that the insert statements are not executed. I don't understand. I con.commit() the query but it is still not executed. Where is the problem?

Solution:
I changed
import MySQLdb as mdb
to
import mysql.connector
and
con = mdb.connect(host='localhost',user='root', password='passowrd',database= 'Wordpress');
to
con = mysql.connector.connect(host='localhost',user='root', password='password',database= 'Wordpress',autocommit=False,buffered=False);

UnboundLocalError: local variable 'Core_prices' referenced before assignment

i use a function calculate servers prices so i made a function which retrieve a defalut prices of a server components and calculate server price for each server exsit in my DB but i try to run this function, i get this error:
function.py
import MySQLdb
def calculations_metric (param) :
db = MySQLdb.connect("localhost", "root", "aqw", "PFE_Project")
cursor = db.cursor()
sql = "SELECT * FROM examples_calculationsmetric"
cursor.execute(sql)
results = cursor.fetchall()
for row in results:
RAM_prices = int(row[1])
Core_prices = int(row[2])
HHD_SATA_prices =int(row[3])
HHD_SSD_prices =int(row[4])
CPU_priority = int(row[5])
Avaibility = int(row[6])
db.close()
db1 = MySQLdb.connect("localhost", "root", "aqw", "PFE_Project")
cursor1 = db1.cursor()
sql1 = "SELECT * FROM examples_servercomponents WHERE id ='%d'" %(param)
cursor1.execute(sql1)
results1 = cursor1.fetchall()
for row in results1:
if row[6] == 'SATA':
Core_price = int(row[2]) * Core_prices # the error is here
Priority_price = int(row[3]) * CPU_priority
RAM_price = int(row[4]) * RAM_prices
HDD_price = int(row[5]) * HHD_SATA_prices
Availibility_price = int(row[7])*Avaibility
elif row[6] == 'SSD':
Core_price = int(row[2]) * Core_prices
Priority_price = int(row[3]) * CPU_priority
RAM_price = int(row[4]) * RAM_prices
HDD_price = int(row[5]) * HHD_SSD_prices
Availibility_price = int(row[7])*Avaibility
price = Core_price + Priority_price + RAM_price + HDD_price + Availibility_price
db1.close()
return price
i don't get what is the error so if can anyone help i will be so greatful

When your SELECT * FROM examples_calculationsmetric doesn't return any results, Core_prices is never set (nor are the other variables in that loop).
Python names do not exist until assigned to, so if results is an empty list, the names inside the for loop never get assigned to and thus do not exist by the time you loop over results1 later on.
You could set default values for those names as a work-around:
RAM_prices = 0
Core_prices = 0
HHD_SATA_prices = 0
HHD_SSD_prices = 0
CPU_priority = 0
Avaibility = 0
to at least ensure that they are defined.