Added status and lanes to boards, added method to assess urgency of tickets

src/yak/models.py

@@ -1,6 +1,7 @@
 from django.db import models
 from django.contrib.auth import get_user_model
 import uuid
+import datetime
 
 
 class Status(models.Model):
@@ -41,6 +42,7 @@ class Label(models.Model):
 class Lane(models.Model):
     """
     Defines "swim-lanes" which are intra-board groupings for tickets
+    Can be used in different ways - either as priority
     """
     # Metadata
     order_key = models.SmallIntegerField(
@@ -79,6 +81,20 @@ class Board(models.Model):
         max_length=16,
         unique=True,
     )
+    statuses = models.ManyToManyField(
+        # Valid statuses for tickets on this board
+        # Requires validation to ensure ticket statuses are legal
+        Status,
+        on_delete=models.SET_NULL,
+        null=True
+    )
+    lanes = models.ManyToManyField(
+        # Valid lanes for tickets on this board
+        # Requires validation to ensure ticket lanes are legal
+        Lane,
+        on_delete=models.SET_NULL,
+        null=True,
+    )
 
 
 class Ticket(models.Model):
@@ -102,9 +118,6 @@ class Ticket(models.Model):
         null=True,
         related_name="created_tickets",
     )
-    order_key = models.SmallIntegerField(
-        default=0,
-    )
     visible = models.BooleanField(
         default=True,
     )
@@ -112,7 +125,7 @@ class Ticket(models.Model):
     class Meta:
         get_latest_by = "created_date"
         order_with_respect_to = "parent"
-        ordering = ["order_key", "title"]
+        ordering = ["lane", "priority", "title"]
 
     # Data
     title = models.CharField(
@@ -121,8 +134,10 @@ class Ticket(models.Model):
     details = models.TextField(
         blank=True,
     )
-
     users = models.ManyToManyField(
+        # Relevant users to this ticket
+        # No fussing around with "assignee" vs "watcher" vs "reporter" ad nauseam
+        # If the ticket is relevant to a user, add them to the users list. Simple.
         get_user_model(),
         blank=True,
     )
@@ -132,6 +147,10 @@ class Ticket(models.Model):
     end_datetime = models.DateTimeField(
         blank=True,
     )
+    priority = models.SmallIntegerField(
+        # Lower priority = more important
+        default=1,
+    )
 
     # Context Data
     parent = models.ForeignKey(
@@ -143,23 +162,32 @@ class Ticket(models.Model):
         null=True,
         related_name="children",
     )
-    status = models.ForeignKey(
-        Status,
-        on_delete=models.SET_NULL,
-        null=True,
-    )
+    # N.B. Labels are global where status and lane are within the context of a board
     labels = models.ManyToManyField(
         Label,
         on_delete=models.SET_NULL,
         blank=True,
         null=True,
     )
+    board = models.ForeignKey(
+        Board,
+        on_delete=models.CASCADE,
+    )
+    status = models.ForeignKey(
+        Status,
+        on_delete=models.SET_NULL,
+        null=True,
+    )
     lane = models.ForeignKey(
         Lane,
         on_delete=models.SET_NULL,
         null=True,
     )
-    board = models.ForeignKey(
-        Board,
-        on_delete=models.CASCADE,
-    )
+
+    # Methods
+    def get_urgency(self):
+        """Returns the product of priority and proximity to due-date"""
+        if not self.end_datetime:
+            return self.priority
+        else:
+            return self.priority * (self.end_datetime - datetime.datetime.now())