mirror of https://github.com/snachodog/mybuddy.git
74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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from django.db.models import Count, Sum
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from django.db.models.functions import TruncDate
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from django.utils.translation import gettext as _
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import plotly.offline as plotly
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import plotly.graph_objs as go
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from core.utils import duration_parts
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from reports import utils
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def tummytime_duration(instances):
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"""
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Create a graph showing total duration of tummy time instances per day.
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:param instances: a QuerySet of TummyTime instances.
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:returns: a tuple of the the graph's html and javascript.
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"""
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totals = (
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instances.annotate(date=TruncDate("start"))
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.values("date")
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.annotate(count=Count("id"))
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.annotate(sum=Sum("duration"))
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.order_by("-date")
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)
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sums = []
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for total in totals:
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sums.append(total["sum"])
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trace_avg = go.Bar(
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name=_("Total duration"),
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x=list(totals.values_list("date", flat=True)),
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y=[td.seconds / 60 for td in sums],
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hoverinfo="text",
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text=[_duration_string_ms(td) for td in sums],
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)
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trace_count = go.Scatter(
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name=_("Number of sessions"),
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mode="markers",
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x=list(totals.values_list("date", flat=True)),
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y=list(totals.values_list("count", flat=True)),
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yaxis="y2",
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hoverinfo="y",
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)
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layout_args = utils.default_graph_layout_options()
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layout_args["title"] = _("<b>Total Tummy Time Durations</b>")
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layout_args["xaxis"]["title"] = _("Date")
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layout_args["xaxis"]["rangeselector"] = utils.rangeselector_date()
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layout_args["yaxis"]["title"] = _("Total duration (minutes)")
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layout_args["yaxis2"] = dict(layout_args["yaxis"])
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layout_args["yaxis2"]["title"] = _("Number of sessions")
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layout_args["yaxis2"]["overlaying"] = "y"
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layout_args["yaxis2"]["side"] = "right"
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fig = go.Figure(
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{"data": [trace_avg, trace_count], "layout": go.Layout(**layout_args)}
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)
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output = plotly.plot(fig, output_type="div", include_plotlyjs=False)
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return utils.split_graph_output(output)
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def _duration_string_ms(duration):
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"""
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Format a "short" duration string with only minutes and seconds. This is
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intended to fit better in smaller spaces on a graph.
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:returns: a string of the form Xm.
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"""
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h, m, s = duration_parts(duration)
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return "{}m{}s".format(m, s)
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