Add a Diaper Change types card.

dashboard/templates/cards/diaperchange_types.html

@@ -0,0 +1,26 @@
+{% extends 'cards/diaperchange.html' %}
+
+{% block header %}Diaper Change Types{% endblock %}
+
+{% block title %}
+    <strong>Past 5 Days</strong>
+{% endblock %}
+
+{% block content %}
+    {% for date, info in stats.items %}
+        <div class="progress mt-3">
+            <div class="progress-bar bg-info lead"
+                 role="progressbar"
+                 style="width: {{ info.wet_pct }}%; height: 30px; line-height: 30px">{{ info.wet }} wet</div>
+            <div class="progress-bar bg-dark lead"
+                 role="progressbar"
+                 style="width: {{ info.solid_pct }}%; height: 30px; line-height: 30px">
+                <strong>{{ info.solid }}</strong> solid</div>
+        </div>
+        <div class="text-center text-dark small">
+            {{ date|date:'D' }}
+        </div>
+    {% endfor %}
+{% endblock %}
+
+{% block footer %}Last change: {{ last_change.time }}{% endblock %}

dashboard/templates/dashboard/child.html

@@ -10,5 +10,6 @@
         {% card_diaperchange_last object %}
         {% card_tummytime_last object %}
         {% card_sleep_last object %}
+        {% card_diaperchange_types object %}
     </div>
 {% endblock %}

dashboard/templatetags/dashboard.py

@@ -1,7 +1,10 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+from collections import OrderedDict
+
 from django import template
+from django.utils import timezone
 
 from core.models import DiaperChange, Feeding, Sleep, TummyTime
 
@@ -22,6 +25,30 @@ def card_diaperchange_last(child):
     return {'change': instance}
 
 
+@register.inclusion_tag('cards/diaperchange_types.html')
+def card_diaperchange_types(child):
+    """Diaper change statistics for the last five days including today."""
+    limit = timezone.now() - timezone.timedelta(days=4)
+    instances = DiaperChange.objects.filter(
+        child=child).filter(time__gt=limit.date()).order_by('-time')
+    stats = OrderedDict()
+    for instance in instances:
+        date = instance.time.date()
+        if date not in stats.keys():
+            stats[date] = {'wet': 0, 'solid': 0}
+        if instance.wet:
+            stats[date]['wet'] += 1
+        if instance.solid:
+            stats[date]['solid'] += 1
+
+    for date, info in stats.items():
+        total = info['wet'] + info['solid']
+        stats[date]['wet_pct'] = info['wet'] / total * 100
+        stats[date]['solid_pct'] = info['solid'] / total * 100
+
+    return {'stats': stats, 'last_change': instances.last()}
+
+
 @register.inclusion_tag('cards/tummytime_last.html')
 def card_tummytime_last(child):
     instance = TummyTime.objects.filter(child=child).order_by('-end').first()