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from django.core.management.base import BaseCommand, CommandError
from django.core.files import File
from django.contrib.auth import get_user_model
from dispatch.models import Customer, Load, Identity, Paperwork, Invoice
import datetime
from faker import Faker
from dateutil import rrule
from dispatch.misc import get_week_dates_datetime
import random
from django.db.utils import IntegrityError
# import yaml
User = get_user_model()
class Command(BaseCommand):
help = """Generate fake data.\n
Example usage: \n
./manage.py insert_fake_data --companies 4 --users 3 --loads 800
--start-date='-16w' --end-date '+16w' --attachments=True"""
fake = Faker()
end_date = ""
start_date = ""
def add_arguments(self, parser):
# parser.add_argument('--file', type=str, dest='filename')
parser.add_argument('--companies', type=int, dest='companies', default='0')
parser.add_argument('--attachments', type=bool, dest='attachments', default=False)
parser.add_argument('--invoices', type=bool, dest='invoices', default=False)
parser.add_argument('--users', type=int, dest='users', default='0')
parser.add_argument('--loads', type=int, dest='loads', default='0')
parser.add_argument('--start-date', type=str, dest='startdate', default='-2w')
parser.add_argument('--end-date', type=str, dest='enddate', default='+2w')
def handle(self, *args, **options):
self.end_date = options['enddate']
self.start_date = options['startdate']
# customer_ids = []
# user_ids = []
for i in range(0, options['companies']):
co = self.fake_customer()
# We're going to hold the model IDs in memory to access randomly
# later on
# customer_ids.append(co.pk)
for i in range(0, options['users']):
u = self.fake_user()
# user_ids.append(u.pk)
# We're going to go about getting the list of user and customer IDs
# in a slightly different manner now so that we get _all_ customers
# and _all_ users.
customer_ids = self.get_customer_ids()
user_ids = self.get_user_ids()
for i in range(0, options['loads']):
co_id = customer_ids[random.randint(0, len(customer_ids)-1)]
co = Customer.objects.get(pk=co_id)
u_id = user_ids[random.randint(0, len(user_ids)-1)]
u = User.objects.get(pk=u_id)
l = self.fake_load(u, co, options['attachments'])
if options['invoices']:
# I'm pretty sure this is slow, but it's not run often
# and can/should be fixed later
start_load = Load.objects.order_by('date')[0]
end_load = Load.objects.order_by('-date')[0]
# print("Start Load: {} PK: {} user: {}".format(start_load, start_load.pk, start_load.user))
# print("End Load: {} PK: {} user: {}".format(end_load, end_load.pk, end_load.user))
# Use the date of the first load to the date of the last load, and
# iterate over all of the weeks in between
for dt in rrule.rrule(rrule.WEEKLY, dtstart=start_load.date, until=end_load.date):
print(dt)
# This will hold all of the users for the week
users = []
# Let's get a listing of loads for the week
wk = get_week_dates_datetime(dt)
loads = Load.objects.filter(date__range=[wk['start_date'], wk['end_date']])
for l in loads:
if l.user not in users:
users.append(l.user)
print(l.user)
for u in users:
due_date = wk['start_date'] + datetime.timedelta(days=30)
inv = Invoice(user=u, invoice_date=wk['start_date'], due_date=due_date)
inv.setup()
inv.save()
inv.populate_items(start_date=wk['start_date'], end_date=wk['end_date'])
print(inv)
# wk = get_week_dates_datetime(dt)
# loads = Load.objects.filter(date__range=[wk['start_date'], wk['end_date']])
# loads = loads.order_by('user')
# uniqe_users
# print("################################################################################")
# print("MUH LOADS")
# print("FOR: {}".format(dt))
# for l in loads:
# print("PK: {}, Date: {}, User: {}".format(l.pk, l.date, l.user))
# print(loads)
# print("################################################################################")
# break
# users = User.objects.all()
# for u in users:
# inv = Invoice(user=u, invoice_date=start_date, due_date=due_date)
# inv.setup()
# inv.save()
# inv.populate_items_default_date
def fake_customer(self):
new_customer = Customer(
name=self.fake.company(),
address=self.fake.address(),
phone_number=self.fake.msisdn(),
email_address=self.fake.company_email(),
contact_name=self.fake.name(),
)
new_customer.save()
return new_customer
def fake_load(self, usr, co, attachments=False):
fake_description = "{}-{} {} {}K".format(
self.fake.month(), self.fake.day_of_month(),
self.fake.license_plate(), random.randint(5, 50))
new_load = Load(
user=usr,
# Because that's going to be random enough
# load_number=self.fake.license_plate(),
# description=self.fake.sentence(nb_words=6),
description=fake_description,
customer=co,
amount=random.randint(150,2500),
delivered_to=self.fake.city(),
)
# Set the date to something random between last week and next week
new_load.date=self.fake.date_between(start_date=self.start_date, end_date=self.end_date)
new_load.save()
if attachments:
self.add_attachment(new_load)
return new_load
def add_attachment(self, load):
p = Paperwork(load=load)
p.document = File(open('chicken.pdf', 'rb'))
p.save()
def fake_user(self):
ffname = self.fake.first_name()
flname = self.fake.last_name()
funame = ffname[0] + flname
funame = '%s.%s' % (ffname, flname)
try:
new_user = User(
first_name=ffname,
last_name=flname,
email=self.fake.email(),
is_active=True
)
new_user.save()
user_ident = Identity(
user=new_user,
name="{} {}".format(ffname, flname),
address=self.fake.address(),
city=self.fake.city(),
state=self.fake.state(),
zip_code=self.fake.zipcode(),
)
user_ident.save()
return new_user
except IntegrityError:
# Around and around we go until we get something new
return self.fake_user()
def get_customer_ids(self):
id_array = []
for cus in Customer.objects.all():
id_array.append(cus.pk)
return id_array
def get_user_ids(self):
id_array = []
for u in User.objects.all():
id_array.append(u.pk)
return id_array
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