WIP: local changes

backend/contacts/models.py

@@ -0,0 +1,65 @@
+from django.db import models
+
+
+class Contact(models.Model):
+    """Контакт в социальном графе."""
+
+    name = models.CharField(max_length=255, verbose_name='Имя')
+    email = models.EmailField(blank=True, verbose_name='Email')
+    phone = models.CharField(max_length=50, blank=True, verbose_name='Телефон')
+    organization = models.CharField(max_length=255, blank=True, verbose_name='Организация')
+    position = models.CharField(max_length=255, blank=True, verbose_name='Должность')
+    notes = models.TextField(blank=True, verbose_name='Заметки')
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        ordering = ['name']
+        verbose_name = 'Контакт'
+        verbose_name_plural = 'Контакты'
+
+    def __str__(self):
+        return self.name
+
+
+RELATION_TYPES = [
+    ('colleague', 'Коллега'),
+    ('friend', 'Друг'),
+    ('family', 'Родственник'),
+    ('acquaintance', 'Знакомый'),
+    ('business', 'Деловой партнёр'),
+    ('other', 'Другое'),
+]
+
+
+class Relation(models.Model):
+    """Связь между двумя контактами."""
+
+    source = models.ForeignKey(
+        Contact,
+        on_delete=models.CASCADE,
+        related_name='relations_as_source',
+        verbose_name='Источник',
+    )
+    target = models.ForeignKey(
+        Contact,
+        on_delete=models.CASCADE,
+        related_name='relations_as_target',
+        verbose_name='Цель',
+    )
+    relation_type = models.CharField(
+        max_length=50,
+        choices=RELATION_TYPES,
+        default='acquaintance',
+        verbose_name='Тип связи',
+    )
+    description = models.CharField(max_length=255, blank=True, verbose_name='Описание')
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        unique_together = ('source', 'target')
+        verbose_name = 'Связь'
+        verbose_name_plural = 'Связи'
+
+    def __str__(self):
+        return f'{self.source} → {self.target} ({self.relation_type})'