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ladeng07
2022-05-06 15:45:57 +08:00
parent 12f390949b
commit 51552904f9
2347 changed files with 120102 additions and 53549 deletions
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venv/Lib/site-packages/django/contrib/admin/utils.py
+66 -93
View File
@@ -13,28 +13,26 @@ from django.utils import formats, timezone
from django.utils.html import format_html
from django.utils.regex_helper import _lazy_re_compile
from django.utils.text import capfirst
from django.utils.translation import ngettext
from django.utils.translation import override as translation_override
from django.utils.translation import ngettext, override as translation_override
QUOTE_MAP = {i: "_%02X" % i for i in b'":/_#?;@&=+$,"[]<>%\n\\'}
QUOTE_MAP = {i: '_%02X' % i for i in b'":/_#?;@&=+$,"[]<>%\n\\'}
UNQUOTE_MAP = {v: chr(k) for k, v in QUOTE_MAP.items()}
UNQUOTE_RE = _lazy_re_compile("_(?:%s)" % "|".join([x[1:] for x in UNQUOTE_MAP]))
UNQUOTE_RE = _lazy_re_compile('_(?:%s)' % '|'.join([x[1:] for x in UNQUOTE_MAP]))
class FieldIsAForeignKeyColumnName(Exception):
"""A field is a foreign key attname, i.e. <FK>_id."""
pass
def lookup_spawns_duplicates(opts, lookup_path):
def lookup_needs_distinct(opts, lookup_path):
"""
Return True if the given lookup path spawns duplicates.
Return True if 'distinct()' should be used to query the given lookup path.
"""
lookup_fields = lookup_path.split(LOOKUP_SEP)
# Go through the fields (following all relations) and look for an m2m.
for field_name in lookup_fields:
if field_name == "pk":
if field_name == 'pk':
field_name = opts.pk.name
try:
field = opts.get_field(field_name)
@@ -42,13 +40,12 @@ def lookup_spawns_duplicates(opts, lookup_path):
# Ignore query lookups.
continue
else:
if hasattr(field, "get_path_info"):
if hasattr(field, 'get_path_info'):
# This field is a relation; update opts to follow the relation.
path_info = field.get_path_info()
opts = path_info[-1].to_opts
if any(path.m2m for path in path_info):
# This field is a m2m relation so duplicates must be
# handled.
# This field is a m2m relation so distinct must be called.
return True
return False
@@ -58,11 +55,11 @@ def prepare_lookup_value(key, value):
Return a lookup value prepared to be used in queryset filtering.
"""
# if key ends with __in, split parameter into separate values
if key.endswith("__in"):
value = value.split(",")
if key.endswith('__in'):
value = value.split(',')
# if key ends with __isnull, special case '' and the string literals 'false' and '0'
elif key.endswith("__isnull"):
value = value.lower() not in ("", "false", "0")
elif key.endswith('__isnull'):
value = value.lower() not in ('', 'false', '0')
return value
@@ -71,7 +68,7 @@ def quote(s):
Ensure that primary key values do not confuse the admin URLs by escaping
any '/', '_' and ':' and similarly problematic characters.
Similar to urllib.parse.quote(), except that the quoting is slightly
different so that it doesn't get automatically unquoted by the web browser.
different so that it doesn't get automatically unquoted by the Web browser.
"""
return s.translate(QUOTE_MAP) if isinstance(s, str) else s
@@ -98,7 +95,9 @@ def flatten_fieldsets(fieldsets):
"""Return a list of field names from an admin fieldsets structure."""
field_names = []
for name, opts in fieldsets:
field_names.extend(flatten(opts["fields"]))
field_names.extend(
flatten(opts['fields'])
)
return field_names
@@ -125,26 +124,26 @@ def get_deleted_objects(objs, request, admin_site):
has_admin = model in admin_site._registry
opts = obj._meta
no_edit_link = "%s: %s" % (capfirst(opts.verbose_name), obj)
no_edit_link = '%s: %s' % (capfirst(opts.verbose_name), obj)
if has_admin:
if not admin_site._registry[model].has_delete_permission(request, obj):
perms_needed.add(opts.verbose_name)
try:
admin_url = reverse(
"%s:%s_%s_change"
% (admin_site.name, opts.app_label, opts.model_name),
None,
(quote(obj.pk),),
)
admin_url = reverse('%s:%s_%s_change'
% (admin_site.name,
opts.app_label,
opts.model_name),
None, (quote(obj.pk),))
except NoReverseMatch:
# Change url doesn't exist -- don't display link to edit
return no_edit_link
# Display a link to the admin page.
return format_html(
'{}: <a href="{}">{}</a>', capfirst(opts.verbose_name), admin_url, obj
)
return format_html('{}: <a href="{}">{}</a>',
capfirst(opts.verbose_name),
admin_url,
obj)
else:
# Don't display link to edit, because it either has no
# admin or is edited inline.
@@ -153,10 +152,7 @@ def get_deleted_objects(objs, request, admin_site):
to_delete = collector.nested(format_callback)
protected = [format_callback(obj) for obj in collector.protected]
model_count = {
model._meta.verbose_name_plural: len(objs)
for model, objs in collector.model_objs.items()
}
model_count = {model._meta.verbose_name_plural: len(objs) for model, objs in collector.model_objs.items()}
return to_delete, model_count, perms_needed, protected
@@ -173,10 +169,10 @@ class NestedObjects(Collector):
def collect(self, objs, source=None, source_attr=None, **kwargs):
for obj in objs:
if source_attr and not source_attr.endswith("+"):
if source_attr and not source_attr.endswith('+'):
related_name = source_attr % {
"class": source._meta.model_name,
"app_label": source._meta.app_label,
'class': source._meta.model_name,
'app_label': source._meta.app_label,
}
self.add_edge(getattr(obj, related_name), obj)
else:
@@ -191,9 +187,7 @@ class NestedObjects(Collector):
def related_objects(self, related_model, related_fields, objs):
qs = super().related_objects(related_model, related_fields, objs)
return qs.select_related(
*[related_field.name for related_field in related_fields]
)
return qs.select_related(*[related_field.name for related_field in related_fields])
def _nested(self, obj, seen, format_callback):
if obj in seen:
@@ -242,8 +236,8 @@ def model_format_dict(obj):
else:
opts = obj
return {
"verbose_name": opts.verbose_name,
"verbose_name_plural": opts.verbose_name_plural,
'verbose_name': opts.verbose_name,
'verbose_name_plural': opts.verbose_name_plural,
}
@@ -275,7 +269,7 @@ def lookup_field(name, obj, model_admin=None):
if callable(name):
attr = name
value = attr(obj)
elif hasattr(model_admin, name) and name != "__str__":
elif hasattr(model_admin, name) and name != '__str__':
attr = getattr(model_admin, name)
value = attr(obj)
else:
@@ -300,21 +294,13 @@ def _get_non_gfk_field(opts, name):
model (rather something like `foo_set`).
"""
field = opts.get_field(name)
if (
field.is_relation
and
# Generic foreign keys OR reverse relations
((field.many_to_one and not field.related_model) or field.one_to_many)
):
if (field.is_relation and
# Generic foreign keys OR reverse relations
((field.many_to_one and not field.related_model) or field.one_to_many)):
raise FieldDoesNotExist()
# Avoid coercing <FK>_id fields to FK
if (
field.is_relation
and not field.many_to_many
and hasattr(field, "attname")
and field.attname == name
):
if field.is_relation and not field.many_to_many and hasattr(field, 'attname') and field.attname == name:
raise FieldIsAForeignKeyColumnName()
return field
@@ -350,10 +336,7 @@ def label_for_field(name, model, model_admin=None, return_attr=False, form=None)
elif form and name in form.fields:
attr = form.fields[name]
else:
message = "Unable to lookup '%s' on %s" % (
name,
model._meta.object_name,
)
message = "Unable to lookup '%s' on %s" % (name, model._meta.object_name)
if model_admin:
message += " or %s" % model_admin.__class__.__name__
if form:
@@ -362,11 +345,9 @@ def label_for_field(name, model, model_admin=None, return_attr=False, form=None)
if hasattr(attr, "short_description"):
label = attr.short_description
elif (
isinstance(attr, property)
and hasattr(attr, "fget")
and hasattr(attr.fget, "short_description")
):
elif (isinstance(attr, property) and
hasattr(attr, "fget") and
hasattr(attr.fget, "short_description")):
label = attr.fget.short_description
elif callable(attr):
if attr.__name__ == "<lambda>":
@@ -392,7 +373,7 @@ def help_text_for_field(name, model):
except (FieldDoesNotExist, FieldIsAForeignKeyColumnName):
pass
else:
if hasattr(field, "help_text"):
if hasattr(field, 'help_text'):
help_text = field.help_text
return help_text
@@ -400,7 +381,7 @@ def help_text_for_field(name, model):
def display_for_field(value, field, empty_value_display):
from django.contrib.admin.templatetags.admin_list import _boolean_icon
if getattr(field, "flatchoices", None):
if getattr(field, 'flatchoices', None):
return dict(field.flatchoices).get(value, empty_value_display)
# BooleanField needs special-case null-handling, so it comes before the
# general null test.
@@ -443,7 +424,7 @@ def display_for_value(value, empty_value_display, boolean=False):
elif isinstance(value, (int, decimal.Decimal, float)):
return formats.number_format(value)
elif isinstance(value, (list, tuple)):
return ", ".join(str(v) for v in value)
return ', '.join(str(v) for v in value)
else:
return str(value)
@@ -453,14 +434,14 @@ class NotRelationField(Exception):
def get_model_from_relation(field):
if hasattr(field, "get_path_info"):
if hasattr(field, 'get_path_info'):
return field.get_path_info()[-1].to_opts.model
else:
raise NotRelationField
def reverse_field_path(model, path):
"""Create a reversed field path.
""" Create a reversed field path.
E.g. Given (Order, "user__groups"),
return (Group, "user__order").
@@ -491,7 +472,7 @@ def reverse_field_path(model, path):
def get_fields_from_path(model, path):
"""Return list of Fields given path relative to model.
""" Return list of Fields given path relative to model.
e.g. (ModelX, "user__groups__name") -> [
<django.db.models.fields.related.ForeignKey object at 0x...>,
@@ -528,42 +509,34 @@ def construct_change_message(form, formsets, add):
change_message = []
if add:
change_message.append({"added": {}})
change_message.append({'added': {}})
elif form.changed_data:
change_message.append({"changed": {"fields": changed_field_labels}})
change_message.append({'changed': {'fields': changed_field_labels}})
if formsets:
with translation_override(None):
for formset in formsets:
for added_object in formset.new_objects:
change_message.append(
{
"added": {
"name": str(added_object._meta.verbose_name),
"object": str(added_object),
}
change_message.append({
'added': {
'name': str(added_object._meta.verbose_name),
'object': str(added_object),
}
)
})
for changed_object, changed_fields in formset.changed_objects:
change_message.append(
{
"changed": {
"name": str(changed_object._meta.verbose_name),
"object": str(changed_object),
"fields": _get_changed_field_labels_from_form(
formset.forms[0], changed_fields
),
}
change_message.append({
'changed': {
'name': str(changed_object._meta.verbose_name),
'object': str(changed_object),
'fields': _get_changed_field_labels_from_form(formset.forms[0], changed_fields),
}
)
})
for deleted_object in formset.deleted_objects:
change_message.append(
{
"deleted": {
"name": str(deleted_object._meta.verbose_name),
"object": str(deleted_object),
}
change_message.append({
'deleted': {
'name': str(deleted_object._meta.verbose_name),
'object': str(deleted_object),
}
)
})
return change_message