需求:
采用forms可以快速生成html表单,并为后续views中的表单校验提供强大的功能,由于前端采用bootstrap实现样式,forms的默认字段并不具有bootstap相应的样式类,所以需要定制forms字段
具体过程:
为了使字段携带form-control
样式
forms.py:
class CustomCharField(forms.CharField):
def __init__(self, *, max_value=None, min_value=None, **kwargs):
super().__init__(**kwargs)
if not self.help_text:
self.help_text = "0:不指定"
self.initial = 0 #默认值为0,可以在后面的forms.Form中重新指定默认值
def widget_attrs(self, widget):
# 添加class样式写在这里,或者添加一些其他input属性都可以
attrs = super().widget_attrs(widget)
attrs["class"] = 'form-control form-control-sm'
return attrs
class CustomIntegerField(forms.IntegerField):
def __init__(self, *, max_value=None, min_value=None, **kwargs):
super().__init__(**kwargs)
if not self.help_text:
self.help_text = "0:不指定"
self.initial = 0
def widget_attrs(self, widget):
attrs = super().widget_attrs(widget)
attrs["class"] = 'form-control form-control-sm'
return attrs
class SearchForm(forms.Form):
area = CustomCharField(label="区域", widget=forms.TextInput(attrs={"placeholder": "瓯海"}))
package_name = CustomCharField(label="套餐名称", widget=forms.TextInput(attrs={"placeholder": "智享套餐"}))
is_black = CustomCharField(label="是否黑名单", widget=forms.TextInput(attrs={"placeholder": "是/否"}))
consume_three_average = CustomCharField(label="前三月平均消费区间",
widget=forms.TextInput(attrs={"placeholder": "50-80"}))
credit_score = CustomIntegerField(label="信用积分(大于)", widget=forms.NumberInput(attrs={"placeholder": 400}))
final_guarantee_amount = CustomIntegerField(label="最终保底金额(大于)", widget=forms.NumberInput(attrs={"placeholder": 80}))
level_start = CustomIntegerField(label="星级(大于)", widget=forms.NumberInput(attrs={"placeholder": 3}))
active_info = CustomCharField(label="活动信息", widget=forms.TextInput(attrs={"placeholder": "幸福家128非合约"}))
class_one_prepaid = CustomCharField(label="01类预缴(年月区间)", help_text="格式:'xxxx.xx-xxxx.xx',结果中包含“无01类预缴”;<br/>0:不指定",
widget=forms.TextInput(attrs={"placeholder": '2021.06-2021.09'}))
other_prepaid = CustomCharField(label="其他类预缴", help_text="默认排除",widget=forms.TextInput(attrs={"placeholder": "无其他预缴"}))