Question

我有一个table.py，我想更改每个BooleanColumn的True和False值的图标。我知道它可以被BooleanColumn的yesno参数修改，但我不知道如何覆盖所有BooleanColumns的默认值。这是table.py的代码（aacsb，amba，equis，mba，bsc，msc和doubedegree是BooleanFields）：

from django_tables2 import Column, Table
from manager.models import Partner


class PartnerTable(Table):

    country_name = Column(accessor='country.name', verbose_name='Country')
    region_name = Column(accessor='country.region.name', verbose_name='Region')

    class Meta:
        model = Partner
        fields = ('name',
                  'country_name',
                  'region_name',
                  'website',
                  'aacsb',
                  'amba',
                  'equis',
                  'mba',
                  'bsc',
                  'msc',
                  'doubledegree',
                  )

Answer 1

1）因此您可以简单地覆盖yesno，其默认值为＆＃34;✔，✘＆＃34; （它只是str）：

some_name = BooleanColumn(yesno='1,2')

或删除文字：

some_name = BooleanColumn(yesno=',')

2）使用css您可以指定自定义图片（不要忘记设置yesno=','）：

span.true {
    background: url(../img/true.gif) top center no-repeat;
}

span.false {
    background: url(../img/false.gif) top center no-repeat;
}

3）为span指定一些额外的吸引力（但不要指定class！）：

some_name = BooleanColumn(attrs={'span': {'style': 'color:blue'}})

4）如果由于某些原因您想要更改默认课程设置行为（true或false） - 您应该覆盖BooleanColumn及其方法render

from django.utils.html import escape
from django.utils.safestring import mark_safe
from django_tables2.utils import AttributeDict


class CustomBooleanColumn(BooleanColumn):
    def render(self, value):
        value = bool(value)
        text = self.yesno[int(not value)]
        html = '<span %s>%s</span>'

        class_name = 'some_class_false'
        if value:
            class_name = 'some_class_true'
        attrs = {'class': 'class_name'}

        attrs.update(self.attrs.get('span', {}))

        return mark_safe(html % (AttributeDict(attrs).as_html(), escape(text)))

覆盖你的字段

some_name = CustomBooleanColumn(yesno=',')

Answer 2

现在这里有完整的代码，感谢madzohan的回答。请注意，我使用了django-bootstrap3，以便我可以使用引导程序图标：

from django_tables2 import BooleanColumn, Column, Table
from django.utils.safestring import mark_safe
from django_tables2.utils import AttributeDict
from manager.models import Partner


class BootstrapBooleanColumn(BooleanColumn):
    def __init__(self, null=False, **kwargs):
        if null:
            kwargs["empty_values"] = ()
        super(BooleanColumn, self).__init__(**kwargs)

    def render(self, value):
        value = bool(value)
        html = "<span %s></span>"

        class_name = "glyphicon glyphicon-remove"
        if value:
            class_name = "glyphicon glyphicon-ok"
        attrs = {'class': class_name}

        attrs.update(self.attrs.get('span', {}))

        return mark_safe(html % (AttributeDict(attrs).as_html()))


class PartnerTable(Table):
    country_name = Column(accessor='country.name', verbose_name='Country')
    region_name = Column(accessor='country.region.name', verbose_name='Region')
    aacsb = BootstrapBooleanColumn()
    amba = BootstrapBooleanColumn()
    equis = BootstrapBooleanColumn()
    mba = BootstrapBooleanColumn()
    bsc = BootstrapBooleanColumn()
    msc = BootstrapBooleanColumn()
    doubledegree = BootstrapBooleanColumn()

    class Meta:
        model = Partner
        fields = ('name',
                  'country_name',
                  'region_name',
                  'website',
                  'aacsb',
                  'amba',
                  'equis',
                  'mba',
                  'bsc',
                  'msc',
                  'doubledegree',
                  )

django-tables2编辑所有BooleanColumn的yesno参数

2 个答案: