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from django.db import models
from django.conf import settings
import django.contrib.auth.models as amodels
class ModelWithPerms(models.Model):
users_read = models.ManyToManyField(
amodels.User,
related_name="%(class)s_read"
)
users_write = models.ManyToManyField(
amodels.User,
related_name="%(class)s_write"
)
groups_read = models.ManyToManyField(
amodels.Group,
related_name="%(class)s_read"
)
groups_write = models.ManyToManyField(
amodels.Group,
related_name="%(class)s_write"
)
class Meta:
abstract = True
class DataSource(ModelWithPerms):
# an mqtt topic can be as long as 65,535 bytes when UTF-8 encoded,
# which is probably too much for a sensible db
topic = models.CharField(max_length=512)
path = models.FilePathField(
path=settings.RRD_DB_PATH,
recursive=True,
max_length=512,
)
rrd_config = models.TextField()
active = models.BooleanField(
default=True,
)
class Graph(ModelWithPerms):
title = models.CharField(max_length=64)
data_sources = models.ManyToManyField(DataSource)
path = models.FilePathField(
path=settings.RRD_GRAPH_PATH,
recursive=True,
max_length=512,
)
rrd_config = models.TextField()
class Dashboard(ModelWithPerms):
title = models.CharField(max_length=64)
graphs = models.ManyToManyField(Graph)
data_sources = models.ManyToManyField(DataSource)
template = models.TextField()
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