49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
from django.db import models
|
|
|
|
class Source(models.Model):
|
|
name = models.CharField(max_length=255, unique=True)
|
|
description = models.TextField(blank=True)
|
|
created_at = models.DateTimeField(auto_now_add=True)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
class Entity(models.Model):
|
|
ENTITY_TYPES = (
|
|
('PERSON', 'Person'),
|
|
('EMAIL', 'Email'),
|
|
('USERNAME', 'Username'),
|
|
('IP', 'IP Address'),
|
|
)
|
|
entity_type = models.CharField(max_length=20, choices=ENTITY_TYPES)
|
|
value = models.CharField(max_length=255, db_index=True)
|
|
source = models.ForeignKey(Source, on_delete=models.CASCADE, related_name='entities')
|
|
confidence_score = models.FloatField(default=1.0)
|
|
created_at = models.DateTimeField(auto_now_add=True)
|
|
updated_at = models.DateTimeField(auto_now=True)
|
|
|
|
class Meta:
|
|
verbose_name_plural = "Entities"
|
|
unique_together = ('entity_type', 'value', 'source')
|
|
|
|
def __str__(self):
|
|
return f"{self.entity_type}: {self.value}"
|
|
|
|
class Relationship(models.Model):
|
|
RELATIONSHIP_TYPES = (
|
|
('OWNED_BY', 'Owned By'),
|
|
('ASSOCIATED_WITH', 'Associated With'),
|
|
('COMMUNICATED_WITH', 'Communicated With'),
|
|
)
|
|
source_entity = models.ForeignKey(Entity, on_delete=models.CASCADE, related_name='outbound_relationships')
|
|
target_entity = models.ForeignKey(Entity, on_delete=models.CASCADE, related_name='inbound_relationships')
|
|
relationship_type = models.CharField(max_length=20, choices=RELATIONSHIP_TYPES)
|
|
weight = models.FloatField(default=1.0)
|
|
created_at = models.DateTimeField(auto_now_add=True)
|
|
|
|
class Meta:
|
|
unique_together = ('source_entity', 'target_entity', 'relationship_type')
|
|
|
|
def __str__(self):
|
|
return f"{self.source_entity} -[{self.relationship_type}]-> {self.target_entity}"
|