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This commit is contained in:
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/forms/boundfield.py
+53 -95
View File
@@ -1,19 +1,19 @@
import datetime
import re
from django.core.exceptions import ValidationError
from django.forms.utils import pretty_name
from django.forms.widgets import MultiWidget, Textarea, TextInput
from django.forms.utils import flatatt, pretty_name
from django.forms.widgets import Textarea, TextInput
from django.utils.functional import cached_property
from django.utils.html import format_html, html_safe
from django.utils.html import conditional_escape, format_html, html_safe
from django.utils.safestring import mark_safe
from django.utils.translation import gettext_lazy as _
__all__ = ("BoundField",)
__all__ = ('BoundField',)
@html_safe
class BoundField:
"A Field plus data"
def __init__(self, form, field, name):
self.form = form
self.field = field
@@ -25,7 +25,7 @@ class BoundField:
self.label = pretty_name(name)
else:
self.label = self.field.label
self.help_text = field.help_text or ""
self.help_text = field.help_text or ''
def __str__(self):
"""Render this field as an HTML widget."""
@@ -42,14 +42,12 @@ class BoundField:
This property is cached so that only one database query occurs when
rendering ModelChoiceFields.
"""
id_ = self.field.widget.attrs.get("id") or self.auto_id
attrs = {"id": id_} if id_ else {}
id_ = self.field.widget.attrs.get('id') or self.auto_id
attrs = {'id': id_} if id_ else {}
attrs = self.build_widget_attrs(attrs)
return [
BoundWidget(self.field.widget, widget, self.form.renderer)
for widget in self.field.widget.subwidgets(
self.html_name, self.value(), attrs=attrs
)
for widget in self.field.widget.subwidgets(self.html_name, self.value(), attrs=attrs)
]
def __bool__(self):
@@ -67,7 +65,7 @@ class BoundField:
# from templates.
if not isinstance(idx, (int, slice)):
raise TypeError(
"BoundField indices must be integers or slices, not %s."
'BoundField indices must be integers or slices, not %s.'
% type(idx).__name__
)
return self.subwidgets[idx]
@@ -77,9 +75,7 @@ class BoundField:
"""
Return an ErrorList (empty if there are no errors) for this field.
"""
return self.form.errors.get(
self.name, self.form.error_class(renderer=self.form.renderer)
)
return self.form.errors.get(self.name, self.form.error_class())
def as_widget(self, widget=None, attrs=None, only_initial=False):
"""
@@ -92,10 +88,8 @@ class BoundField:
widget.is_localized = True
attrs = attrs or {}
attrs = self.build_widget_attrs(attrs, widget)
if self.auto_id and "id" not in widget.attrs:
attrs.setdefault(
"id", self.html_initial_id if only_initial else self.auto_id
)
if self.auto_id and 'id' not in widget.attrs:
attrs.setdefault('id', self.html_initial_id if only_initial else self.auto_id)
return widget.render(
name=self.html_initial_name if only_initial else self.html_name,
value=self.value(),
@@ -124,7 +118,7 @@ class BoundField:
"""
Return the data for this BoundField, or None if it wasn't given.
"""
return self.form._widget_data_value(self.field.widget, self.html_name)
return self.field.widget.value_from_datadict(self.form.data, self.form.files, self.html_name)
def value(self):
"""
@@ -136,23 +130,6 @@ class BoundField:
data = self.field.bound_data(self.data, data)
return self.field.prepare_value(data)
def _has_changed(self):
field = self.field
if field.show_hidden_initial:
hidden_widget = field.hidden_widget()
initial_value = self.form._widget_data_value(
hidden_widget,
self.html_initial_name,
)
try:
initial_value = field.to_python(initial_value)
except ValidationError:
# Always assume data has changed if validation fails.
return True
else:
initial_value = self.initial
return field.has_changed(initial_value, self.data)
def label_tag(self, contents=None, attrs=None, label_suffix=None):
"""
Wrap the given contents in a <label>, if the field has an ID attribute.
@@ -165,48 +142,43 @@ class BoundField:
"""
contents = contents or self.label
if label_suffix is None:
label_suffix = (
self.field.label_suffix
if self.field.label_suffix is not None
else self.form.label_suffix
)
label_suffix = (self.field.label_suffix if self.field.label_suffix is not None
else self.form.label_suffix)
# Only add the suffix if the label does not end in punctuation.
# Translators: If found as last label character, these punctuation
# characters will prevent the default label_suffix to be appended to the label
if label_suffix and contents and contents[-1] not in _(":?.!"):
contents = format_html("{}{}", contents, label_suffix)
if label_suffix and contents and contents[-1] not in _(':?.!'):
contents = format_html('{}{}', contents, label_suffix)
widget = self.field.widget
id_ = widget.attrs.get("id") or self.auto_id
id_ = widget.attrs.get('id') or self.auto_id
if id_:
id_for_label = widget.id_for_label(id_)
if id_for_label:
attrs = {**(attrs or {}), "for": id_for_label}
if self.field.required and hasattr(self.form, "required_css_class"):
attrs = {**(attrs or {}), 'for': id_for_label}
if self.field.required and hasattr(self.form, 'required_css_class'):
attrs = attrs or {}
if "class" in attrs:
attrs["class"] += " " + self.form.required_css_class
if 'class' in attrs:
attrs['class'] += ' ' + self.form.required_css_class
else:
attrs["class"] = self.form.required_css_class
context = {
"field": self,
"label": contents,
"attrs": attrs,
"use_tag": bool(id_),
}
return self.form.render(self.form.template_name_label, context)
attrs['class'] = self.form.required_css_class
attrs = flatatt(attrs) if attrs else ''
contents = format_html('<label{}>{}</label>', attrs, contents)
else:
contents = conditional_escape(contents)
return mark_safe(contents)
def css_classes(self, extra_classes=None):
"""
Return a string of space-separated CSS classes for this field.
"""
if hasattr(extra_classes, "split"):
if hasattr(extra_classes, 'split'):
extra_classes = extra_classes.split()
extra_classes = set(extra_classes or [])
if self.errors and hasattr(self.form, "error_css_class"):
if self.errors and hasattr(self.form, 'error_css_class'):
extra_classes.add(self.form.error_css_class)
if self.field.required and hasattr(self.form, "required_css_class"):
if self.field.required and hasattr(self.form, 'required_css_class'):
extra_classes.add(self.form.required_css_class)
return " ".join(extra_classes)
return ' '.join(extra_classes)
@property
def is_hidden(self):
@@ -220,11 +192,11 @@ class BoundField:
associated Form has specified auto_id. Return an empty string otherwise.
"""
auto_id = self.form.auto_id # Boolean or string
if auto_id and "%s" in str(auto_id):
if auto_id and '%s' in str(auto_id):
return auto_id % self.html_name
elif auto_id:
return self.html_name
return ""
return ''
@property
def id_for_label(self):
@@ -234,44 +206,31 @@ class BoundField:
it has a single widget or a MultiWidget.
"""
widget = self.field.widget
id_ = widget.attrs.get("id") or self.auto_id
id_ = widget.attrs.get('id') or self.auto_id
return widget.id_for_label(id_)
@cached_property
def initial(self):
return self.form.get_initial_for_field(self.field, self.name)
data = self.form.get_initial_for_field(self.field, self.name)
# If this is an auto-generated default date, nix the microseconds for
# standardized handling. See #22502.
if (isinstance(data, (datetime.datetime, datetime.time)) and
not self.field.widget.supports_microseconds):
data = data.replace(microsecond=0)
return data
def build_widget_attrs(self, attrs, widget=None):
widget = widget or self.field.widget
attrs = dict(attrs) # Copy attrs to avoid modifying the argument.
if (
widget.use_required_attribute(self.initial)
and self.field.required
and self.form.use_required_attribute
):
# MultiValueField has require_all_fields: if False, fall back
# on subfields.
if (
hasattr(self.field, "require_all_fields")
and not self.field.require_all_fields
and isinstance(self.field.widget, MultiWidget)
):
for subfield, subwidget in zip(self.field.fields, widget.widgets):
subwidget.attrs["required"] = (
subwidget.use_required_attribute(self.initial)
and subfield.required
)
else:
attrs["required"] = True
if widget.use_required_attribute(self.initial) and self.field.required and self.form.use_required_attribute:
attrs['required'] = True
if self.field.disabled:
attrs["disabled"] = True
attrs['disabled'] = True
return attrs
@property
def widget_type(self):
return re.sub(
r"widget$|input$", "", self.field.widget.__class__.__name__.lower()
)
return re.sub(r'widget$|input$', '', self.field.widget.__class__.__name__.lower())
@html_safe
@@ -288,7 +247,6 @@ class BoundWidget:
</label>
{% endfor %}
"""
def __init__(self, parent_widget, data, renderer):
self.parent_widget = parent_widget
self.data = data
@@ -298,19 +256,19 @@ class BoundWidget:
return self.tag(wrap_label=True)
def tag(self, wrap_label=False):
context = {"widget": {**self.data, "wrap_label": wrap_label}}
context = {'widget': {**self.data, 'wrap_label': wrap_label}}
return self.parent_widget._render(self.template_name, context, self.renderer)
@property
def template_name(self):
if "template_name" in self.data:
return self.data["template_name"]
if 'template_name' in self.data:
return self.data['template_name']
return self.parent_widget.template_name
@property
def id_for_label(self):
return self.data["attrs"].get("id")
return 'id_%s_%s' % (self.data['name'], self.data['index'])
@property
def choice_label(self):
return self.data["label"]
return self.data['label']