我正在尝试创建一个带有标签字段的删除块,以便用户可以选择要从中过滤的标签。我使用wagtail.admin.widgets import AdminTagWidget
创建了标签字段。
class TagsBlock(FieldBlock):
field = forms.CharField(
widget=AdminTagWidget
)
class RelatedArticlesBlock(StructBlock):
title = CharBlock(required=False)
filter_tags = TagsBlock()
no_of_items = IntegerBlock()
它可以按照预期的方式选择标签。但是当我保存它时,由于filter_tags字段为空,因此会出现验证错误。
我该如何解决? (输入未填充所选标签)
稍加改进,在field
调用中设置__init__
似乎起作用。
基于与custom block types相关的文档。
from django import forms
from wagtail.admin.widgets import AdminTagWidget
# ...
class TagsBlock(FieldBlock):
"""
Basic Stream Block that will use the Wagtail tags system.
Stores the tags as simple strings only.
"""
def __init__(self, required=False, help_text=None, **kwargs):
# note - required=False is critical if you are adding this block to an existing streamfield (or you can set up your manual migrations to avoid this need)
self.field = forms.CharField(widget=AdminTagWidget, required=False)
super().__init__(**kwargs)
LB本·约翰斯顿(Ben Johnston)帮助我将标签放入块中,但由于无法将标签字段留空,我最终遇到了与您相同的错误。为了解决这个问题,我修改了上面的内容(LB Ben Jonston的回答),因此,TagsBlock现在为:
class TagsBlock(blocks.FieldBlock):
"""
Basic Stream Block that will use the Wagtail tags system.
Stores the tags as simple strings only.
"""
def __init__(self, required=False, help_text=None, **kwargs):
self.field = forms.CharField(widget=AdminTagWidget, required=False)
super().__init__(**kwargs)
[required=False
现在在self.field内部。
如果用户愿意,这使我可以将标签字段留空。
希望有帮助!