Add a "fake" management command for creating fake data.

Pipfile

@@ -7,3 +7,6 @@ django = "*"
 djangorestframework = "*"
 django-filter = "*"
 django-widget-tweaks = "*"
+
+[dev-packages]
+faker = "*"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "bae82f005879197d15002ee3084605c5d70e02154eb49c1bc76d085d4cd6d51b"
+            "sha256": "837c05c254d8603c80ce3add8dfd5e9a80701a742fdd1b98568f1b664586870f"
         },
         "requires": {},
         "sources": [
@@ -28,5 +28,15 @@
             "version": "==2017.2"
         }
     },
-    "develop": {}
+    "develop": {
+        "faker": {
+            "version": "==0.7.18"
+        },
+        "python-dateutil": {
+            "version": "==2.6.1"
+        },
+        "six": {
+            "version": "==1.10.0"
+        }
+    }
 }

babyblotter/management/commands/fake.py

@@ -0,0 +1,113 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from random import randint, choice
+from datetime import timedelta
+from decimal import Decimal
+
+from django.core.management.base import BaseCommand
+from django.utils import timezone
+
+from faker import Factory
+
+from core.models import Child, DiaperChange, Feeding, Sleep, TummyTime
+
+
+class Command(BaseCommand):
+    help = 'Generates fake children and related entries.'
+
+    def __init__(self, *args, **kwargs):
+        super(Command, self).__init__(*args, **kwargs)
+        self.faker = Factory.create()
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '--children',
+            dest='children',
+            default=1,
+            help='The number of fake children to create.'
+        )
+
+    def handle(self, *args, **kwargs):
+        verbosity = kwargs['verbosity'] or 1
+        children = kwargs['children'] or 1
+
+        for i in range(0, children):
+            child = Child.objects.create(
+                first_name=self.faker.first_name(),
+                last_name=self.faker.last_name(),
+                birth_date=self.faker.date()
+            )
+            child.save()
+
+            for j in range(1, 6):
+                date = timezone.now() - timedelta(days=j)
+                self._add_child_data(child, date)
+
+        if verbosity > 0:
+            self.stdout.write(
+                self.style.SUCCESS('Successfully added fake data.')
+            )
+
+    def _add_child_data(self, child, date):
+        for i in (range(0, randint(5, 20))):
+            solid = choice([True, False])
+            if solid:
+                wet = False
+                color = choice(
+                    DiaperChange._meta.get_field('color').choices)[0]
+            else:
+                wet = True
+                color = ''
+
+            DiaperChange.objects.create(
+                child=child,
+                time=date + timedelta(seconds=randint(-86400, 86400)),
+                wet=wet,
+                solid=solid,
+                color=color
+            ).save()
+
+        for i in (range(0, randint(5, 20))):
+            start = date + timedelta(seconds=randint(-86400, 86400))
+            method = choice(Feeding._meta.get_field('method').choices)[0]
+
+            if method is 'bottle':
+                amount = Decimal('%d.%d' % (randint(0, 6), randint(0, 9)))
+            else:
+                amount = None
+
+            Feeding.objects.create(
+                child=child,
+                start=start,
+                end=start + timedelta(minutes=randint(5, 60)),
+                type=choice(Feeding._meta.get_field('type').choices)[0],
+                method=method,
+                amount=amount
+            ).save()
+
+        for i in (range(0, randint(2, 10))):
+            start = date + timedelta(seconds=randint(-86400, 86400))
+
+            Sleep.objects.create(
+                child=child,
+                start=start,
+                end=start + timedelta(minutes=randint(5, 120))
+            ).save()
+
+        for i in (range(0, randint(2, 10))):
+            start = date + timedelta(seconds=randint(-86400, 86400))
+
+            if choice([True, False]):
+                milestone = self.faker.sentence()
+            else:
+                milestone = ''
+
+            TummyTime.objects.create(
+                child=child,
+                start=start,
+                end=start + timedelta(minutes=randint(1, 10)),
+                milestone=milestone
+            ).save()
+
+