From 1b20eb62e729f2ca3e27f1b5f278e5517acde970 Mon Sep 17 00:00:00 2001
From: Jonathan Weth <git@jonathanweth.de>
Date: Tue, 3 Aug 2021 20:22:04 +0200
Subject: [PATCH] Add model for live documents
---
.../resint/migrations/0006_livedocument.py | 30 +++++++++++++
aleksis/apps/resint/models.py | 45 +++++++++++++++++++
2 files changed, 75 insertions(+)
create mode 100644 aleksis/apps/resint/migrations/0006_livedocument.py
diff --git a/aleksis/apps/resint/migrations/0006_livedocument.py b/aleksis/apps/resint/migrations/0006_livedocument.py
new file mode 100644
index 0000000..44a186a
--- /dev/null
+++ b/aleksis/apps/resint/migrations/0006_livedocument.py
@@ -0,0 +1,30 @@
+# Generated by Django 3.2.5 on 2021-08-03 18:02
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+ dependencies = [
+ ('contenttypes', '0002_remove_content_type_name'),
+ ('resint', '0005_fix_permissions'),
+ ]
+
+ operations = [
+ migrations.CreateModel(
+ name='LiveDocument',
+ fields=[
+ ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+ ('slug', models.SlugField(help_text='This will be used for the name of the current PDF file.', verbose_name='Slug')),
+ ('name', models.CharField(max_length=255, verbose_name='Name')),
+ ('last_update', models.DateTimeField(blank=True, null=True, verbose_name='Date and time of the last update')),
+ ('current_file', models.FileField(blank=True, null=True, upload_to='chronos/plan_pdfs/', verbose_name='Current file')),
+ ('polymorphic_ctype', models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='polymorphic_resint.livedocument_set+', to='contenttypes.contenttype')),
+ ],
+ options={
+ 'verbose_name': 'Live document',
+ 'verbose_name_plural': 'Live documents',
+ },
+ ),
+ ]
diff --git a/aleksis/apps/resint/models.py b/aleksis/apps/resint/models.py
index 4b0c97a..1b47450 100644
--- a/aleksis/apps/resint/models.py
+++ b/aleksis/apps/resint/models.py
@@ -1,6 +1,7 @@
from datetime import datetime
from typing import Optional
+from django.core.files import File
from django.core.validators import FileExtensionValidator, MaxValueValidator, MinValueValidator
from django.db import models
from django.utils import timezone
@@ -8,6 +9,7 @@ from django.utils.translation import gettext_lazy as _
from calendarweek import CalendarWeek
from calendarweek.django import i18n_day_name_choices_lazy
+from polymorphic.models import PolymorphicModel
from aleksis.core.mixins import ExtensibleModel
@@ -141,3 +143,46 @@ class Poster(ExtensibleModel):
cw = CalendarWeek(week=self.week, year=self.year)
day = cw[self.group.publishing_day]
return timezone.datetime.combine(day, self.group.publishing_time)
+
+
+class LiveDocument(PolymorphicModel):
+ """Model for periodically/automatically updated PDF files."""
+
+ slug = models.SlugField(
+ verbose_name=_("Slug"),
+ help_text=_("This will be used for the name of the current PDF file."),
+ )
+ name = models.CharField(max_length=255, verbose_name=_("Name"))
+
+ last_update = models.DateTimeField(
+ blank=True, null=True, verbose_name=_("Date and time of the last update"), editable=False
+ )
+ current_file = models.FileField(
+ upload_to="live_documents/",
+ null=True,
+ blank=True,
+ verbose_name=_("Current file"),
+ editable=False,
+ )
+
+ def update(self, file: Optional[File] = None):
+ """Set a new PDF file as current file."""
+ if file:
+ self.current_file.save("current.pdf", file)
+ self.last_update = timezone.now()
+ self.save()
+
+ def get_current_file(self) -> Optional[File]:
+ """Get current PDF file."""
+ if not self.current_file:
+ self.update()
+ return self.current_file.file if self.current_file else None
+
+ @property
+ def filename(self) -> str:
+ """Get the filename without path of the PDF file."""
+ return f"{self.slug}.pdf"
+
+ class Meta:
+ verbose_name = _("Live document")
+ verbose_name_plural = _("Live documents")
--
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