Add reports for temperature readings

reports/graphs/__init__.py

@@ -9,5 +9,6 @@ from .height_change import height_change  # NOQA
 from .pumping_amounts import pumping_amounts  # NOQA
 from .sleep_pattern import sleep_pattern  # NOQA
 from .sleep_totals import sleep_totals  # NOQA
+from .temperature_change import temperature_change # NOQA
 from .tummytime_duration import tummytime_duration  # NOQA
 from .weight_change import weight_change  # NOQA

reports/graphs/temperature_change.py

@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+from django.utils.translation import gettext as _
+
+import plotly.offline as plotly
+import plotly.graph_objs as go
+
+from reports import utils
+
+
+def temperature_change(objects):
+    """
+    Create a graph showing temperature over time.
+    :param objects: a QuerySet of Temperature instances.
+    :returns: a tuple of the graph's html and javascript.
+    """
+    objects = objects.order_by("-time")
+
+    trace = go.Scatter(
+        name=_("Temperature"),
+        x=list(objects.values_list("time", flat=True)),
+        y=list(objects.values_list("temperature", flat=True)),
+        fill="tozeroy",
+    )
+
+    layout_args = utils.default_graph_layout_options()
+    layout_args["barmode"] = "stack"
+    layout_args["title"] = _("<b>Temperature</b>")
+    layout_args["xaxis"]["title"] = _("Time")
+    layout_args["xaxis"]["rangeselector"] = utils.rangeselector_time()
+    layout_args["yaxis"]["title"] = _("Temperature")
+
+    fig = go.Figure({"data": [trace], "layout": go.Layout(**layout_args)})
+    output = plotly.plot(fig, output_type="div", include_plotlyjs=False)
+    return utils.split_graph_output(output)

reports/templates/reports/report_list.html

@@ -27,6 +27,7 @@
             <a href="{% url 'reports:report-pumping-amounts-child' object.slug %}" class="list-group-item list-group-item-action">{% trans "Pumping Amounts" %}</a>
             <a href="{% url 'reports:report-sleep-pattern-child' object.slug %}" class="list-group-item list-group-item-action">{% trans "Sleep Pattern" %}</a>
             <a href="{% url 'reports:report-sleep-totals-child' object.slug %}" class="list-group-item list-group-item-action">{% trans "Sleep Totals" %}</a>
+            <a href="{% url 'reports:report-temperature-change-child' object.slug %}" class="list-group-item list-group-item-action">{% trans "Temperature" %}</a>
             <a href="{% url 'reports:report-tummy-time-duration-child' object.slug %}" class="list-group-item list-group-item-action">{% trans "Tummy Time Durations (Sum)" %}</a>
             <a href="{% url 'reports:report-weight-change-child' object.slug %}" class="list-group-item list-group-item-action">{% trans "Weight" %}</a>
         </div>

reports/templates/reports/temperature_change.html

@@ -0,0 +1,10 @@
+{% extends 'reports/report_base.html' %}
+{% load i18n %}
+
+{% block title %}{% trans "Temperature" %} - {{ object }}{% endblock %}
+
+{% block breadcrumbs %}
+    {{ block.super }}
+    {% include 'reports/breadcrumb_common_chunk.html' with target_url='reports:report-temperature-change-child' %}
+    <li class="breadcrumb-item active" aria-current="page">{% trans "Temperature" %}</li>
+{% endblock %}

reports/urls.py

@@ -66,6 +66,11 @@ urlpatterns = [
         views.SleepTotalsChildReport.as_view(),
         name="report-sleep-totals-child",
     ),
+    path(
+        "children/<str:slug>/reports/temperature/temperature/",
+        views.TemperatureChangeChildReport.as_view(),
+        name="report-temperature-change-child",
+    ),
     path(
         "children/<str:slug>/reports/tummy-time/duration/",
         views.TummyTimeDurationChildReport.as_view(),

reports/utils.py

@@ -50,6 +50,24 @@ def rangeselector_date():
     }
 
 
+def rangeselector_time():
+    """
+    Graph time range selectors settings for 12h, 24h, 48h, 3d and all.
+    :returns: a dict of settings for the selectors.
+    """
+    return {
+        "bgcolor": "rgb(35, 149, 86)",
+        "activecolor": "rgb(25, 108, 62)",
+        "buttons": [
+            {"count": 12, "label": "12h", "step": "hour", "stepmode": "backward"},
+            {"count": 24, "label": "24h", "step": "hour", "stepmode": "backward"},
+            {"count": 48, "label": "48h", "step": "hour", "stepmode": "backward"},
+            {"count": 3, "label": "3d", "step": "day", "stepmode": "backward"},
+            {"count": 7, "label": "7d", "step": "day", "stepmode": "backward"},
+            {"step": "all"},
+        ],
+    }
+
 def split_graph_output(output):
     """
     Split out of a Plotly graph in to html and javascript.

reports/views.py

@@ -242,6 +242,24 @@ class SleepTotalsChildReport(PermissionRequiredMixin, DetailView):
         return context
 
 
+class TemperatureChangeChildReport(PermissionRequiredMixin, DetailView):
+    """
+    Graph of temperature change over time.
+    """
+
+    model = models.Child
+    permission_required = ("core.view_child",)
+    template_name = "reports/temperature_change.html"
+
+    def get_context_data(self, **kwargs):
+        context = super(TemperatureChangeChildReport, self).get_context_data(**kwargs)
+        child = context["object"]
+        objects = models.Temperature.objects.filter(child=child)
+        if objects:
+            context["html"], context["js"] = graphs.temperature_change(objects)
+        return context
+
+
 class TummyTimeDurationChildReport(PermissionRequiredMixin, DetailView):
     """
     Graph of tummy time durations over time.