dashboard/dash/models.py

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# Copyright © 2022 Aravinth Manivannan <realaravinth@batsense.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from django.db import models
from django.contrib.auth.models import User
from django.utils.http import urlencode
from django.urls import reverse
class InstanceConfiguration(models.Model):
ID = models.AutoField(primary_key=True)
name = models.CharField(
"Name of this configuration",
unique=True,
max_length=32,
)
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rent = models.FloatField("Monthly rent of instance in Euros", null=False)
ram = models.FloatField(
"The amount of RAM an instance will have",
null=False,
)
cpu = models.IntegerField(
"The amount of CPU an instance will have",
null=False,
)
storage = models.FloatField(
"The amount of storage an instance will have",
null=False,
)
created_at = models.DateTimeField(auto_now_add=True, blank=True)
def __str__(self):
return f"{self.name}"
class Meta:
constraints = [
models.UniqueConstraint(
fields=["ram", "cpu", "storage"], name="no_repeat_config"
)
]
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class Instance(models.Model):
"""
Hostea instances
"""
owned_by = models.ForeignKey(User, on_delete=models.CASCADE)
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ID = models.AutoField(primary_key=True)
name = models.CharField(
"Name of this Instance. Also Serves as subdomain",
unique=True,
max_length=200,
)
configuration_id = models.ForeignKey(
InstanceConfiguration, on_delete=models.PROTECT
)
created_at = models.DateTimeField(auto_now_add=True, blank=True)
def __str__(self):
return f"{self.owned_by}'s instance '{self.name}'"