我是来自意大利的Marcello，我是python和jango的新手。我问一个问题，以获取有关我在Django项目的信息。
我创建了一个有两个表的项目，我的问题是如何自动从csv获取数据，我将创建一个存储csv.txt的ftp服务器并更新表（例如每天）。
现在，我将手动更新Django导入/导出。我希望django读取csv文件并更新db，然后删除。
非常感谢您的支持！
我的模型。py：
from django.db import models
from django.urls import reverse
class AnagraficaCliente(models.Model):
codice_cliente = models.CharField(max_length=20, primary_key=True,
null=False, unique=True)
ragione_sociale = models.CharField(max_length=40)
ragione_sociale_dest = models.CharField(max_length=40)
nome = models.CharField(max_length=20, blank=True)
cognome = models.CharField(max_length=20, blank=True)
ragione_sociale = models.CharField(max_length=20)
indirizzo = models.TextField(blank=True)
cap = models.CharField(max_length=5, blank=True)
piva = models.CharField(max_length=11, blank=True)
vatnumber = models.CharField(max_length=13, blank=True)
ragione_sociale_dest = models.CharField(max_length=40)
indirizzo_dest = models.TextField(null=True)
def __str__(self):
#return self.ragione_sociale + " " + self.codice_cliente
return self.ragione_sociale_dest + " " + self.indirizzo_dest
class Meta:
verbose_name = "AnagraficaCliente"
verbose_name_plural = "AnagraficaClienti"
class Tracking(models.Model):
track = models.CharField(max_length=10, null=False, unique=True,
primary_key=True)
passaggio1 = models.CharField(max_length=50, blank=True)
passaggio2 = models.CharField(max_length=50, blank=True)
passaggio3 = models.CharField(max_length=50, blank=True)
passaggio4 = models.CharField(max_length=50, blank=True)
passaggio5 = models.CharField(max_length=50, blank=True)
consegna = (
('C', 'Consegnato'),
('N', 'Non consegnato'),
)
consegnato = models.CharField(max_length=1, choices=consegna)
#consegnato = models.BooleanField(blank=True)
#esito = models.CharField(max_length=10, blank=True)
flag = models.CharField(max_length=2, blank=True)
AnagraficaCliente = models.ForeignKey(AnagraficaCliente,
on_delete=models.CASCADE, related_name='trackings')
def __str__(self):
return self.track
class Meta:
verbose_name = "Tracking"
verbose_name_plural = "Trackings"
我制作了一个脚本，该脚本从trackingtest.csv读取并存储在result_str_csv_anag_index_8_list中，然后从anagraficatest.csv读取并插入mysql中，此后，我从表tracking_anagraficacliente获取查询（ 如果外键是正确的，则我将最后一个字段数据存储在result_str_query_anag_index_8_list中，然后在result_str_query_anag_index_8_list中比较result_str_csv_anag_index_8_list。
所有这些都在Linux中使用cron进行，但是我想在django（后端）中实现警报（例如，如果插入正常，则按钮为红色或绿色）。
我希望是初学者；）
谢谢。
#!/usr/bin/python3
import csv
import MySQLdb, time
sql_anag= """
INSERT INTO tracking_anagraficacliente
(codice_cliente,nome,cognome,ragione_sociale,indirizzo,cap,piva,vatnumber,ragione_sociale_dest,indirizzo_dest)
VALUES
(%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
ON DUPLICATE KEY UPDATE
-- no primary key aggiornata
nome = VALUES(nome),
cognome = VALUES(cognome),
ragione_sociale = VALUES(ragione_sociale),
indirizzo = VALUES(indirizzo),
cap = VALUES(cap),
piva = VALUES(piva),
vatnumber = VALUES(vatnumber),
ragione_sociale_dest = VALUES(ragione_sociale_dest),
indirizzo_dest = VALUES(indirizzo_dest);
"""
sql_track= """
INSERT INTO tracking_tracking
VALUES
(%s, %s, %s, %s, %s, %s, %s, %s, %s)
ON DUPLICATE KEY UPDATE
-- no primary key aggiornata
passaggio1 = VALUES(passaggio1),
passaggio2 = VALUES(passaggio2),
passaggio3 = VALUES(passaggio3),
passaggio4 = VALUES(passaggio4),
passaggio5 = VALUES(passaggio5),
consegnato = VALUES(consegnato),
flag = VALUES(flag),
AnagraficaCliente_id = VALUES(AnagraficaCliente_id);
"""
query_id_anag = """ select codice_cliente from tracking_anagraficacliente; """
#query_id_track = """ select AnagraficaCliente_id from tracking_tracking; """
db = MySQLdb.connect(
host="localhost", # your host
user="xxxxxxx", # your username
passwd="xxxxxx", # your password
db="lm_cms") # name of the data base
cur = db.cursor()
with open('trackingtest.csv') as csvfile: #
readCSVQuery = csv.reader(csvfile, delimiter=',')
next (readCSVQuery)
list_csv_tracking = []
for i in readCSVQuery:
trackAnagraficaId = i[8]
list_csv_tracking.append(trackAnagraficaId)
result_str_csv_track_index_8 = str(list_csv_tracking).replace(",",
"").replace("[", "").replace("]", "")
result_str_csv_anag_index_8_list = result_str_csv_track_index_8.split(' ')
print ("Risultato CSV Tracking Foreign
Key",result_str_csv_anag_index_8_list)
def insert_anagrafica():
with open('anagraficatest.csv') as csvfile: #read CSV anagraficatest
readCSV = csv.reader(csvfile, delimiter=',')
next (readCSV) # Jump first line
for row_anag in readCSV:
try:
cur.execute (sql_anag, (row_anag)) #Insert data on mysql
db.commit() # Commit your changes in the database
print(row_anag)
except (MySQLdb.Error, MySQLdb.Warning) as e: #Exception
print(e)
db.rollback() # Rollback in case there is any error
db.close()
def query_anag():
cur.execute(query_id_anag) #Execute query to get codice_cliente from tracking_anagraficacliente
results_query_id_anag = cur.fetchall() # Get all data from query and assign to results_query_id_anag
result_query_anag = str(results_query_id_anag).replace("(", "").replace(")", "").replace(",", "")# Delete ( ) , from results_query_id_anag and convert to string
result_str_query_anag_index_8_list = result_query_anag.split(' ') # Convert in string from result_query_anag to result_str_query_anag_index_8_list
print ("Risultato Query anagrafica Codice cliente ",result_str_query_anag_index_8_list)
return result_str_query_anag_index_8_list #return value
def insert_tracking():
with open('trackingtest.csv') as csvfile: #Read Csv
readCSV = csv.reader(csvfile, delimiter=',') #Read csv file
next (readCSV) #Jump first line
#print (results_query_id_anag)
#compare if AnagraficaClienteID in trackingtest.csv is present in mysql tracking_aanagraficacliente Codice Cliente
#,if present make the insert sql_track else no
for i in result_str_csv_anag_index_8_list: #compare element lists in result_str_csv_anag_index_8_list is present in result_str_query_anag_index_8_list
if i in result_str_query_anag_index_8_list:
for row_track in readCSV: # Read all the line in trackingtest.csv
try:
#print(row_track[0])
#print(row_track)
cur.execute (sql_track, (row_track)) #Insert data trackingtest.csv in tracking_tracking
db.commit() # Commit your changes in the database
print ("Insert effettuata con successo ", row_track)
except (MySQLdb.Error, MySQLdb.Warning) as e:
print (e, "Riga non inserita: ",row_track)
#db.close() # disconnect from server
else:
print ("Attenzione, una o più righe non sono state inserite")
insert_anagrafica()
time.sleep(2)
(result_str_query_anag_index_8_list) = query_anag() #value passed from def query_anag() to insert_tracking
time.sleep(2)
insert_tracking()