2018-07-10 15:53:38 +02:00

406 lines
13 KiB
Python
Executable File

from datetime import datetime
from django.conf import settings
from django.contrib import admin, messages
from django.contrib.admin import helpers
from django.contrib.admin.utils import model_ngettext
from django.contrib.auth.models import User, Group
from django.core.exceptions import PermissionDenied
from django.template.response import TemplateResponse
from django.urls import reverse
from django.templatetags.static import static
from django.utils.safestring import mark_safe
from .models import Correspondent, Tag, Document, Log
class MonthListFilter(admin.SimpleListFilter):
title = "Month"
# Parameter for the filter that will be used in the URL query.
parameter_name = "month"
def lookups(self, request, model_admin):
r = []
for document in Document.objects.all():
r.append((
document.created.strftime("%Y-%m"),
document.created.strftime("%B %Y")
))
return sorted(set(r), key=lambda x: x[0], reverse=True)
def queryset(self, request, queryset):
if not self.value():
return None
year, month = self.value().split("-")
return queryset.filter(created__year=year, created__month=month)
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 CommonAdmin(admin.ModelAdmin):
list_per_page = settings.PAPERLESS_LIST_PER_PAGE
class CorrespondentAdmin(CommonAdmin):
list_display = ("name", "match", "matching_algorithm", "document_count")
list_filter = ("matching_algorithm",)
list_editable = ("match", "matching_algorithm")
def save_model(self, request, obj, form, change):
super().save_model(request, obj, form, change)
for document in Document.objects.filter(correspondent__isnull=True).exclude(tags__is_archived_tag=True):
if obj.matches(document.content):
document.correspondent = obj
document.save(update_fields=("correspondent",))
def document_count(self, obj):
return obj.documents.count()
class TagAdmin(CommonAdmin):
list_display = ("name", "colour", "match", "matching_algorithm",
"document_count")
list_filter = ("colour", "matching_algorithm")
list_editable = ("colour", "match", "matching_algorithm")
def save_model(self, request, obj, form, change):
super().save_model(request, obj, form, change)
for document in Document.objects.all().exclude(tags__is_archived_tag=True):
if obj.matches(document.content):
document.tags.add(obj)
def document_count(self, obj):
return obj.documents.count()
def add_tag_to_selected(modeladmin, request, queryset):
opts = modeladmin.model._meta
app_label = opts.app_label
if not modeladmin.has_change_permission(request):
raise PermissionDenied
if request.POST.get('post'):
n = queryset.count()
tag = Tag.objects.get(id=request.POST.get('tag_id'))
if n:
for obj in queryset:
obj.tags.add(tag)
obj_display = str(obj)
modeladmin.log_change(request, obj, obj_display)
modeladmin.message_user(request, "Successfully added tag %(tag)s to %(count)d %(items)s." % {
"tag": tag.name, "count": n, "items": model_ngettext(modeladmin.opts, n)
}, messages.SUCCESS)
# Return None to display the change list page again.
return None
title = "Add tag to multiple documents"
context = dict(
modeladmin.admin_site.each_context(request),
title=title,
queryset=queryset,
opts=opts,
action_checkbox_name=helpers.ACTION_CHECKBOX_NAME,
media=modeladmin.media,
action="add_tag_to_selected",
tags=Tag.objects.all()
)
request.current_app = modeladmin.admin_site.name
return TemplateResponse(request,
"admin/%s/%s/mass_modify_tag.html" % (app_label, opts.model_name)
, context)
add_tag_to_selected.short_description = "Add tag to selected documents"
def remove_tag_from_selected(modeladmin, request, queryset):
opts = modeladmin.model._meta
app_label = opts.app_label
if not modeladmin.has_change_permission(request):
raise PermissionDenied
if request.POST.get('post'):
n = queryset.count()
tag = Tag.objects.get(id=request.POST.get('tag_id'))
if n:
for obj in queryset:
obj.tags.remove(tag)
obj_display = str(obj)
modeladmin.log_change(request, obj, obj_display)
modeladmin.message_user(request, "Successfully removed tag %(tag)s from %(count)d %(items)s." % {
"tag": tag.name, "count": n, "items": model_ngettext(modeladmin.opts, n)
}, messages.SUCCESS)
# Return None to display the change list page again.
return None
title = "Remove tag from multiple documents"
context = dict(
modeladmin.admin_site.each_context(request),
title=title,
queryset=queryset,
opts=opts,
action_checkbox_name=helpers.ACTION_CHECKBOX_NAME,
media=modeladmin.media,
action="remove_tag_from_selected",
tags=Tag.objects.all()
)
request.current_app = modeladmin.admin_site.name
return TemplateResponse(request,
"admin/%s/%s/mass_modify_tag.html" % (app_label, opts.model_name)
, context)
remove_tag_from_selected.short_description = "Remove tag from selected documents"
def set_correspondent_on_selected(modeladmin, request, queryset):
opts = modeladmin.model._meta
app_label = opts.app_label
if not modeladmin.has_change_permission(request):
raise PermissionDenied
if request.POST.get('post'):
n = queryset.count()
correspondent = Correspondent.objects.get(id=request.POST.get('correspondent_id'))
if n:
for obj in queryset:
obj_display = str(obj)
modeladmin.log_change(request, obj, obj_display)
queryset.update(correspondent=correspondent)
modeladmin.message_user(request, "Successfully set correspondent %(correspondent)s on %(count)d %(items)s." % {
"correspondent": correspondent.name, "count": n, "items": model_ngettext(modeladmin.opts, n)
}, messages.SUCCESS)
# Return None to display the change list page again.
return None
title = "Set correspondent on multiple documents"
context = dict(
modeladmin.admin_site.each_context(request),
title=title,
queryset=queryset,
opts=opts,
action_checkbox_name=helpers.ACTION_CHECKBOX_NAME,
media=modeladmin.media,
correspondents=Correspondent.objects.all()
)
request.current_app = modeladmin.admin_site.name
return TemplateResponse(request,
"admin/%s/%s/set_correspondent.html" % (app_label, opts.model_name)
, context)
set_correspondent_on_selected.short_description = "Set correspondent on selected documents"
def remove_correspondent_from_selected(modeladmin, request, queryset):
if not modeladmin.has_change_permission(request):
raise PermissionDenied
n = queryset.count()
if n:
for obj in queryset:
obj_display = str(obj)
modeladmin.log_change(request, obj, obj_display)
queryset.update(correspondent=None)
modeladmin.message_user(request, "Successfully removed correspondent from %(count)d %(items)s." % {
"count": n, "items": model_ngettext(modeladmin.opts, n)
}, messages.SUCCESS)
return None
remove_correspondent_from_selected.short_description = "Remove correspondent from selected documents"
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")
list_filter = ("tags", "correspondent", FinancialYearFilter,
MonthListFilter)
ordering = ["-created", "correspondent"]
actions = [add_tag_to_selected, remove_tag_from_selected, set_correspondent_on_selected, remove_correspondent_from_selected]
def has_add_permission(self, request):
return False
def created_(self, obj):
return obj.created.date().strftime("%Y-%m-%d")
created_.short_description = "Created"
@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 = []
for lft, rgt in kwargs.items():
attributes.append('{}="{}"'.format(lft, rgt))
if inside is not None:
return "<{kind} {attributes}>{inside}</{kind}>".format(
kind=kind, attributes=" ".join(attributes), inside=inside)
return "<{} {}/>".format(kind, " ".join(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(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)