mirror of
https://github.com/paperless-ngx/paperless-ngx.git
synced 2025-04-29 11:09:27 -05:00
Sheesh, solved with subqueries
This commit is contained in:
shamoon
parent
590c638ba0
commit
a8eb460c3a
@ -9,12 +9,12 @@ from django.contrib.contenttypes.models import ContentType
|
||||
from django.db.models import Case
|
||||
from django.db.models import CharField
|
||||
from django.db.models import Count
|
||||
from django.db.models import DateTimeField
|
||||
from django.db.models import Exists
|
||||
from django.db.models import FloatField
|
||||
from django.db.models import IntegerField
|
||||
from django.db.models import OuterRef
|
||||
from django.db.models import Q
|
||||
from django.db.models import Subquery
|
||||
from django.db.models import Sum
|
||||
from django.db.models import Value
|
||||
from django.db.models import When
|
||||
from django.db.models.functions import Cast
|
||||
@ -785,133 +785,101 @@ class DocumentsOrderingFilter(OrderingFilter):
|
||||
annotation = None
|
||||
match field.data_type:
|
||||
case CustomField.FieldDataType.STRING:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_text",
|
||||
output_field=CharField(),
|
||||
),
|
||||
),
|
||||
default=Value(""),
|
||||
output_field=CharField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_text")[:1],
|
||||
)
|
||||
case CustomField.FieldDataType.INT:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_int",
|
||||
output_field=IntegerField(),
|
||||
),
|
||||
),
|
||||
default=Value(0),
|
||||
output_field=IntegerField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_int")[:1],
|
||||
)
|
||||
case CustomField.FieldDataType.FLOAT:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_float",
|
||||
output_field=FloatField(),
|
||||
),
|
||||
),
|
||||
default=Value(0),
|
||||
output_field=FloatField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_float")[:1],
|
||||
)
|
||||
case CustomField.FieldDataType.DATE:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_date",
|
||||
output_field=DateTimeField(),
|
||||
),
|
||||
),
|
||||
default=Value("1900-01-01T00:00:00Z"),
|
||||
output_field=DateTimeField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_date")[:1],
|
||||
)
|
||||
case CustomField.FieldDataType.MONETARY:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_monetary_amount",
|
||||
output_field=FloatField(),
|
||||
),
|
||||
),
|
||||
default=Value(0),
|
||||
output_field=FloatField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_monetary_amount")[:1],
|
||||
)
|
||||
case CustomField.FieldDataType.SELECT:
|
||||
select_options = field.extra_data.get("select_options", [])
|
||||
whens = []
|
||||
# Create a case for each select option
|
||||
for option in select_options:
|
||||
whens.append(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
custom_fields__value_select=option.get("id"),
|
||||
then=Value(option["label"], output_field=CharField()),
|
||||
),
|
||||
# Select options are a little more complicated since the value is the id of the option, not
|
||||
# the label. Additionally, to support sqlite we can't use StringAgg, so we need to create a
|
||||
# case statement for each option, setting the value to the index of the option in a list
|
||||
# sorted by label, and then summing the results to give a single value for the annotation
|
||||
|
||||
select_options = sorted(
|
||||
field.extra_data.get("select_options", []),
|
||||
key=lambda x: x.get("label"),
|
||||
)
|
||||
whens = [
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
custom_fields__value_select=option.get("id"),
|
||||
then=Value(idx, output_field=IntegerField()),
|
||||
)
|
||||
annotation = Case(
|
||||
*whens,
|
||||
default=Value(""),
|
||||
output_field=CharField(),
|
||||
for idx, option in enumerate(select_options)
|
||||
]
|
||||
whens.append(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
custom_fields__value_select__isnull=True,
|
||||
then=Value(
|
||||
len(select_options),
|
||||
output_field=IntegerField(),
|
||||
),
|
||||
),
|
||||
)
|
||||
annotation = Sum(
|
||||
Case(
|
||||
*whens,
|
||||
default=Value(0),
|
||||
output_field=IntegerField(),
|
||||
),
|
||||
)
|
||||
case CustomField.FieldDataType.DOCUMENTLINK:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_document_ids",
|
||||
output_field=CharField(),
|
||||
),
|
||||
),
|
||||
default=Value(""),
|
||||
output_field=CharField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_document_ids")[:1],
|
||||
)
|
||||
case CustomField.FieldDataType.URL:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
then=Cast(
|
||||
"custom_fields__value_url",
|
||||
output_field=CharField(),
|
||||
),
|
||||
),
|
||||
default=Value(""),
|
||||
output_field=CharField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_url")[:1],
|
||||
)
|
||||
|
||||
case CustomField.FieldDataType.BOOL:
|
||||
annotation = Case(
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
custom_fields__value_bool=True,
|
||||
then=Value(
|
||||
1,
|
||||
output_field=IntegerField(),
|
||||
),
|
||||
),
|
||||
When(
|
||||
custom_fields__field_id=custom_field_id,
|
||||
custom_fields__value_bool=False,
|
||||
then=Value(
|
||||
0,
|
||||
output_field=IntegerField(),
|
||||
),
|
||||
),
|
||||
default=Value(0),
|
||||
output_field=IntegerField(),
|
||||
annotation = Subquery(
|
||||
CustomFieldInstance.objects.filter(
|
||||
document_id=OuterRef("id"),
|
||||
field_id=custom_field_id,
|
||||
).values("value_bool")[:1],
|
||||
)
|
||||
|
||||
if not annotation:
|
||||
raise ValueError("Invalid custom field data type")
|
||||
|
||||
ids_sorted_by_cf = (
|
||||
queryset = (
|
||||
queryset.annotate(
|
||||
# We need to annotate the queryset with the custom field value
|
||||
custom_field_value=annotation,
|
||||
@ -930,16 +898,7 @@ class DocumentsOrderingFilter(OrderingFilter):
|
||||
"custom_field_value",
|
||||
),
|
||||
)
|
||||
.values_list("id", flat=True)
|
||||
.distinct()
|
||||
)
|
||||
|
||||
# We need to preserve the order of the ids sorted by custom field, see https://docs.djangoproject.com/en/dev/ref/models/querysets/#distinct
|
||||
preserved = Case(
|
||||
*[
|
||||
When(id=id, then=position)
|
||||
for position, id in enumerate(ids_sorted_by_cf)
|
||||
],
|
||||
)
|
||||
queryset = queryset.filter(id__in=ids_sorted_by_cf).order_by(preserved)
|
||||
|
||||
return super().filter_queryset(request, queryset, view)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user