working on tickets implementation

apps/home/models.py

@@ -1,10 +1,67 @@
 # -*- encoding: utf-8 -*-
-"""
-Copyright (c) 2019 - present AppSeed.us
-"""
+
+from datetime import timedelta, datetime
 
 from django.db import models
-from django.contrib.auth.models import User
+from django.conf import settings
+from django.utils import timezone
 
-# Create your models here.
 
+class TicketPriority(models.Model):
+    title = models.CharField(max_length=32)
+    colour = models.CharField(max_length=7)
+
+
+class TicketTag(models.Model):
+    title = models.CharField(max_length=32)
+    colour = models.CharField(max_length=7)
+
+
+class Ticket(models.Model):
+    title = models.CharField(max_length=60)
+    description = models.TextField(max_length=650)
+    author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    create_timestamp = models.DateTimeField(editable=True, default=timezone.now)
+    edit_timestamp = models.DateTimeField(editable=True, default=timezone.now)
+
+    def __str__(self):
+        return f"#{self.id} • {self.title} • {self.author}"
+
+    @property
+    def is_edited(self) -> bool:
+        """Returns boolean if the ticket is believed to have been edited.
+        We assume a ticket is edited if the edit_timestamp doesn't match the create_timestamp.
+
+        Returns
+        -------
+        bool
+            True if `self.edit_timestamp` doesn't match `self.create_timestamp`, False otherwise.
+        """
+
+        return self.create_timestamp != self.edit_timestamp
+
+    @property
+    def is_older_than_day(self) -> bool:
+        """Returns boolean dependent on if `self.timestamp` is older than 24 hours.
+
+        Returns
+        -------
+        bool
+            True if `self.timestamp` is older than 24 hours, False otherwise.
+        """
+
+        dayago = timezone.now() - timedelta(hours=24)
+        return self.timestamp <= dayago
+
+    @property
+    def timestamp(self) -> datetime:
+        """Returns `self.edit_timestamp` if `self.is_edited` is True, otherwise
+        returns `self.create_timestamp`.
+
+        Returns
+        -------
+        datetime
+            Either `self.edit_timestamp` or `self.create_timestamp`.
+        """
+
+        return self.edit_timestamp if self.is_edited else self.create_timestamp