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##############################################################################
# Copyright (c) 2016 Max Breitenfeldt and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from datetime import timedelta
from django.contrib.auth.models import User
from django.db import models
from django.utils import timezone
from jenkins.models import JenkinsSlave
class Resource(models.Model):
id = models.AutoField(primary_key=True)
name = models.CharField(max_length=100, unique=True)
description = models.CharField(max_length=300, blank=True, null=True)
url = models.CharField(max_length=100, blank=True, null=True)
owner = models.ForeignKey(User, related_name='user_lab_owner', null=True)
vpn_users = models.ManyToManyField(User, related_name='user_vpn_users', blank=True)
slave = models.ForeignKey(JenkinsSlave, on_delete=models.DO_NOTHING, null=True)
def get_booking_utilization(self, weeks):
"""
Return a dictionary containing the count of booked and free seconds for a resource in the
range [now,now + weeks] if weeks is positive,
or [now-weeks, now] if weeks is negative
"""
length = timedelta(weeks=abs(weeks))
now = timezone.now()
start = now
end = now + length
if weeks < 0:
start = now - length
end = now
bookings = self.booking_set.filter(start__lt=start + length, end__gt=start)
booked_seconds = 0
for booking in bookings:
booking_start = booking.start
booking_end = booking.end
if booking_start < start:
booking_start = start
if booking_end > end:
booking_end = start + length
total = booking_end - booking_start
booked_seconds += total.total_seconds()
return {'booked_seconds': booked_seconds,
'available_seconds': length.total_seconds() - booked_seconds}
class Meta:
db_table = 'resource'
def __str__(self):
return self.name
class Server(models.Model):
id = models.AutoField(primary_key=True)
resource = models.ForeignKey(Resource, on_delete=models.CASCADE)
name = models.CharField(max_length=100, blank=True)
model = models.CharField(max_length=100, blank=True)
cpu = models.CharField(max_length=100, blank=True)
ram = models.CharField(max_length=100, blank=True)
storage = models.CharField(max_length=100, blank=True)
class Meta:
db_table = 'server'
def __str__(self):
return self.name
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