mirror of https://github.com/snachodog/mybuddy.git
73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
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# -*- 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 = 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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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],
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'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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