edpibu/nummi
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Code Issues 4 Releases Activity

Update graphics

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This commit is contained in:
Edgar P. Burkhart 2022-05-24 17:09:16 +02:00
parent d9abdf798f
commit 73ce1a298e
Signed by: edpibu
GPG key ID: 9833D3C5A25BD227
4 changed files with 110 additions and 63 deletions
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40
nummi/main/static/main/css/chart.css Normal file
View file

@ -0,0 +1,40 @@
.chart {
display: grid;
grid-template-columns: auto auto 1fr 1fr auto;
grid-gap: var(--gap) 0;
}
.chart > div {
position: relative;
height: 2rem;
line-height: 2rem;
}
.chart .left {
text-align: right;
}
.chart .bar,
.chart .value {
display: inline-block;
height: 2rem;
line-height: 2rem;
}
.chart .value {
padding: 0 var(--gap);
}
.chart .bar {
width: 0;
box-sizing: border-box;
z-index: 1;
}
.chart .bar.tot {
position: absolute;
z-index: 10;
border-top: .5rem solid black;
}
.chart .left .bar.tot {right: 0}
.chart .right .bar.tot {left: 0}
.chart .bar_m {background: var(--red)}
.chart .bar_p {background: var(--green)}

50
nummi/main/templates/main/snapshot.html
View file

@ -6,6 +6,7 @@
{{ block.super }}
<link rel="stylesheet" href="{% static 'main/css/form.css' %}" type="text/css" />
<link rel="stylesheet" href="{% static 'main/css/table.css' %}" type="text/css" />
<link rel="stylesheet" href="{% static 'main/css/chart.css' %}" type="text/css" />
{% endblock %}
{% block body %}
@ -32,7 +33,54 @@
</form>
<h2>Plot</h2>
<img src="{% url 'snapshot_graph' snapshot.id %}" />
<div class="chart">
{% for cat in categories %}
<div class="name">
{% if cat.category %}
<i class="fa fa-{{ cat.category__icon }}"></i>
<a href="{% url 'category' cat.category %}">
{{ cat.category__name }}
</a>
{% else %}
<i class="fa fa-wallet"></i></i>
{% endif %}
</div>
<div class="value left">
{% pmvalue cat.sum_m %}
</div>
<div class="left">
<div
class="bar bar_m"
style="width:{% widthratio cat.sum_m cat_lim_m 100 %}%"
title="{{ cat.sum_m }}">
</div>
{% if cat.sum < 0 %}
<div
class="bar tot"
style="width:{% widthratio cat.sum cat_lim_m 100 %}%"
title="{{ cat.sum }}">
</div>
{% endif %}
</div>
<div class="right">
<div
class="bar bar_p"
style="width:{% widthratio cat.sum_p cat_lim 100 %}%"
title="{{ cat.sum_p }}">
</div>
{% if cat.sum >= 0 %}
<div
class="bar tot"
style="width:{% widthratio cat.sum cat_lim 100 %}%"
title="{{ cat.sum }}">
</div>
{% endif %}
</div>
<div class="value right">
{% pmvalue cat.sum_p %}
</div>
{% endfor %}
</div>
{% if snapshot.transactions %}
<h2>Transactions ({% pmvalue sum %} / {% pmvalue snapshot.diff %})</h2>

1
nummi/main/urls.py
View file

@ -17,6 +17,5 @@ urlpatterns = [
path("category/<uuid>/del", views.del_category, name="del_category"),
path("snapshot", views.snapshot, name="snapshot"),
path("snapshot/<uuid>", views.snapshot, name="snapshot"),
path("snapshot/<uuid>/graph.svg", views.snapshot_graph, name="snapshot_graph"),
path("snapshot/<uuid>/del", views.del_snapshot, name="del_snapshot"),
]

82
nummi/main/views.py
View file

@ -6,8 +6,6 @@ from django.contrib.auth.mixins import LoginRequiredMixin
from django.views.generic import ListView
from django.core.paginator import Paginator
from django.db import models
import matplotlib.pyplot as plt
import tempfile
from .models import (
Transaction,
@ -165,6 +163,27 @@ def snapshot(request, uuid=None):
"form": _form,
}
context["categories"] = (
_snapshot.transactions.values("category", "category__name", "category__icon")
.annotate(
sum=models.Sum("value"),
sum_m=models.Sum("value", filter=models.Q(value__lt=0)),
sum_p=models.Sum("value", filter=models.Q(value__gt=0)),
)
.order_by("-sum")
)
context["cat_lim"] = max(
map(
abs,
context["categories"]
.aggregate(
max=models.Max("sum_p"),
min=models.Min("sum_m"),
)
.values(),
)
)
context["cat_lim_m"] = -context["cat_lim"]
return render(
request,
"main/snapshot.html",
@ -172,65 +191,6 @@ def snapshot(request, uuid=None):
)
@login_required
def snapshot_graph(request, uuid):
_snapshot = get_object_or_404(Snapshot, id=uuid)
_categories_p = (
_snapshot.transactions.filter(value__gt=0)
.values("category")
.annotate(sum=models.Sum("value"))
)
_categories_m = (
_snapshot.transactions.filter(value__lt=0)
.values("category")
.annotate(sum=models.Sum("value"))
)
_categories = (
_snapshot.transactions.values("category")
.annotate(sum=models.Sum("value"))
.order_by("-sum")
)
print(_categories_p)
print(_categories_m)
fig, ax = plt.subplots(constrained_layout=True)
ax.barh(
[
"*" if (c := _cat["category"]) is None else Category.objects.get(id=c).name
for _cat in _categories
],
[_cat["sum"] for _cat in _categories],
hatch="/",
fill=False,
zorder=10,
)
ax.barh(
[
"*" if (c := _cat["category"]) is None else Category.objects.get(id=c).name
for _cat in _categories_p
],
[_cat["sum"] for _cat in _categories_p],
color="#007339",
zorder=9,
)
ax.barh(
[
"*" if (c := _cat["category"]) is None else Category.objects.get(id=c).name
for _cat in _categories_m
],
[_cat["sum"] for _cat in _categories_m],
color="#bf1500",
zorder=9,
)
ax.grid(color="k", alpha=0.2)
ax.set(xlabel="Value (€)")
# fig.tight_layout()
with tempfile.NamedTemporaryFile(suffix=".svg") as f:
fig.savefig(f.name)
f.seek(0)
return HttpResponse(f.read(), content_type="image/svg+xml")
@login_required
def del_snapshot(request, uuid):
_snapshot = get_object_or_404(Snapshot, id=uuid)