2018-09-25 14:47:12 +02:00

374 lines
12 KiB
Python
Executable File

from datetime import datetime, timedelta
from django.conf import settings
from django.contrib import admin, messages
from django.contrib.admin.templatetags.admin_urls import add_preserved_filters
from django.contrib.auth.models import Group, User
from django.db import models
from django.http import HttpResponseRedirect
from django.templatetags.static import static
from django.urls import reverse
from django.utils.html import format_html, format_html_join
from django.utils.http import urlquote
from django.utils.safestring import mark_safe
from documents.actions import (
add_tag_to_selected,
remove_correspondent_from_selected,
remove_tag_from_selected,
set_correspondent_on_selected,
set_document_type_on_selected,
remove_document_type_from_selected,
run_document_classifier_on_selected
)
from .models import Correspondent, Document, DocumentType, Log, Tag
class FinancialYearFilter(admin.SimpleListFilter):
title = "Financial Year"
parameter_name = "fy"
_fy_wraps = None
def _fy_start(self, year):
"""Return date of the start of financial year for the given year."""
fy_start = "{}-{}".format(str(year), settings.FY_START)
return datetime.strptime(fy_start, "%Y-%m-%d").date()
def _fy_end(self, year):
"""Return date of the end of financial year for the given year."""
fy_end = "{}-{}".format(str(year), settings.FY_END)
return datetime.strptime(fy_end, "%Y-%m-%d").date()
def _fy_does_wrap(self):
"""Return whether the financial year spans across two years."""
if self._fy_wraps is None:
start = "{}".format(settings.FY_START)
start = datetime.strptime(start, "%m-%d").date()
end = "{}".format(settings.FY_END)
end = datetime.strptime(end, "%m-%d").date()
self._fy_wraps = end < start
return self._fy_wraps
def _determine_fy(self, date):
"""Return a (query, display) financial year tuple of the given date."""
if self._fy_does_wrap():
fy_start = self._fy_start(date.year)
if date.date() >= fy_start:
query = "{}-{}".format(date.year, date.year + 1)
else:
query = "{}-{}".format(date.year - 1, date.year)
# To keep it simple we use the same string for both
# query parameter and the display.
return (query, query)
else:
query = "{0}-{0}".format(date.year)
display = "{}".format(date.year)
return (query, display)
def lookups(self, request, model_admin):
if not settings.FY_START or not settings.FY_END:
return None
r = []
for document in Document.objects.all():
r.append(self._determine_fy(document.created))
return sorted(set(r), key=lambda x: x[0], reverse=True)
def queryset(self, request, queryset):
if not self.value() or not settings.FY_START or not settings.FY_END:
return None
start, end = self.value().split("-")
return queryset.filter(created__gte=self._fy_start(start),
created__lte=self._fy_end(end))
class RecentCorrespondentFilter(admin.RelatedFieldListFilter):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.title = "correspondent (recent)"
def field_choices(self, field, request, model_admin):
years = settings.PAPERLESS_RECENT_CORRESPONDENT_YEARS
days = 365 * years
lookups = []
if years and years > 0:
correspondents = Correspondent.objects.filter(
documents__created__gte=datetime.now() - timedelta(days=days)
).distinct()
for c in correspondents:
lookups.append((c.id, c.name))
return lookups
class CommonAdmin(admin.ModelAdmin):
list_per_page = settings.PAPERLESS_LIST_PER_PAGE
class CorrespondentAdmin(CommonAdmin):
list_display = (
"name",
"automatic_classification",
"document_count",
"last_correspondence"
)
list_editable = ("automatic_classification")
def get_queryset(self, request):
qs = super(CorrespondentAdmin, self).get_queryset(request)
qs = qs.annotate(
document_count=models.Count("documents"),
last_correspondence=models.Max("documents__created")
)
return qs
def document_count(self, obj):
return obj.document_count
document_count.admin_order_field = "document_count"
def last_correspondence(self, obj):
return obj.last_correspondence
last_correspondence.admin_order_field = "last_correspondence"
class TagAdmin(CommonAdmin):
list_display = ("name", "colour", "automatic_classification", "document_count")
list_filter = ("colour",)
list_editable = ("colour", "automatic_classification")
def get_queryset(self, request):
qs = super(TagAdmin, self).get_queryset(request)
qs = qs.annotate(document_count=models.Count("documents"))
return qs
def document_count(self, obj):
return obj.document_count
document_count.admin_order_field = "document_count"
class DocumentTypeAdmin(CommonAdmin):
list_display = ("name", "automatic_classification", "document_count")
list_editable = ("automatic_classification",)
def get_queryset(self, request):
qs = super(DocumentTypeAdmin, self).get_queryset(request)
qs = qs.annotate(document_count=models.Count("documents"))
return qs
def document_count(self, obj):
return obj.document_count
document_count.admin_order_field = "document_count"
class DocumentAdmin(CommonAdmin):
class Media:
css = {
"all": ("paperless.css",)
}
search_fields = ("correspondent__name", "title", "content", "tags__name")
readonly_fields = ("added",)
list_display = ("title", "created", "added", "thumbnail", "correspondent",
"tags_", "archive_serial_number", "document_type")
list_filter = (
"document_type",
"tags",
("correspondent", RecentCorrespondentFilter),
"correspondent",
FinancialYearFilter
)
filter_horizontal = ("tags",)
ordering = ["-created", "correspondent"]
actions = [
add_tag_to_selected,
remove_tag_from_selected,
set_correspondent_on_selected,
remove_correspondent_from_selected,
set_document_type_on_selected,
remove_document_type_from_selected,
run_document_classifier_on_selected
]
date_hierarchy = "created"
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.document_queue = []
def has_add_permission(self, request):
return False
def created_(self, obj):
return obj.created.date().strftime("%Y-%m-%d")
created_.short_description = "Created"
def changelist_view(self, request, extra_context=None):
response = super().changelist_view(
request,
extra_context=extra_context
)
if request.method == "GET":
cl = self.get_changelist_instance(request)
self.document_queue = [doc.id for doc in cl.queryset]
return response
def change_view(self, request, object_id=None, form_url='',
extra_context=None):
extra_context = extra_context or {}
doc = Document.objects.get(id=object_id)
extra_context['download_url'] = doc.download_url
extra_context['file_type'] = doc.file_type
if self.document_queue and object_id:
if int(object_id) in self.document_queue:
# There is a queue of documents
current_index = self.document_queue.index(int(object_id))
if current_index < len(self.document_queue) - 1:
# ... and there are still documents in the queue
extra_context["next_object"] = self.document_queue[
current_index + 1
]
return super(DocumentAdmin, self).change_view(
request,
object_id,
form_url,
extra_context=extra_context,
)
def response_change(self, request, obj):
# This is mostly copied from ModelAdmin.response_change()
opts = self.model._meta
preserved_filters = self.get_preserved_filters(request)
msg_dict = {
"name": opts.verbose_name,
"obj": format_html(
'<a href="{}">{}</a>',
urlquote(request.path),
obj
),
}
if "_saveandeditnext" in request.POST:
msg = format_html(
'The {name} "{obj}" was changed successfully. '
'Editing next object.',
**msg_dict
)
self.message_user(request, msg, messages.SUCCESS)
redirect_url = reverse(
"admin:{}_{}_change".format(opts.app_label, opts.model_name),
args=(request.POST["_next_object"],),
current_app=self.admin_site.name
)
redirect_url = add_preserved_filters(
{
"preserved_filters": preserved_filters,
"opts": opts
},
redirect_url
)
return HttpResponseRedirect(redirect_url)
return super().response_change(request, obj)
@mark_safe
def thumbnail(self, obj):
return self._html_tag(
"a",
self._html_tag(
"img",
src=reverse("fetch", kwargs={"kind": "thumb", "pk": obj.pk}),
width=180,
alt="Thumbnail of {}".format(obj.file_name),
title=obj.file_name
),
href=obj.download_url
)
@mark_safe
def tags_(self, obj):
r = ""
for tag in obj.tags.all():
colour = tag.get_colour_display()
r += self._html_tag(
"a",
tag.slug,
**{
"class": "tag",
"style": "background-color: {};".format(colour),
"href": "{}?tags__id__exact={}".format(
reverse("admin:documents_document_changelist"),
tag.pk
)
}
)
return r
@mark_safe
def document(self, obj):
# TODO: is this method even used anymore?
return self._html_tag(
"a",
self._html_tag(
"img",
src=static("documents/img/{}.png".format(obj.file_type)),
width=22,
height=22,
alt=obj.file_type,
title=obj.file_name
),
href=obj.download_url
)
@staticmethod
def _html_tag(kind, inside=None, **kwargs):
attributes = format_html_join(' ', '{}="{}"', kwargs.items())
if inside is not None:
return format_html("<{kind} {attributes}>{inside}</{kind}>",
kind=kind, attributes=attributes, inside=inside)
return format_html("<{} {}/>", kind, attributes)
class LogAdmin(CommonAdmin):
list_display = ("created", "message", "level",)
list_filter = ("level", "created",)
admin.site.register(Correspondent, CorrespondentAdmin)
admin.site.register(Tag, TagAdmin)
admin.site.register(DocumentType, DocumentTypeAdmin)
admin.site.register(Document, DocumentAdmin)
admin.site.register(Log, LogAdmin)
# Unless we implement multi-user, these default registrations don't make sense.
admin.site.unregister(Group)
admin.site.unregister(User)