Django Crispy Forms：为文本区域设置行

Question

创建带有 的表单时FormHelper()，我的表单的文本区域（对于TextFields）太大：它们设置为 10 行。我想设置行数。我怎样才能做到这一点？

我的代码：

models.py：

from django.db import models

class Spam(models.Model).
    ham = models.CharField(max_length=10, blank=True, null=False, default='Some ham')
    eggs = models.TextField(blank=True, null=False, default='', verbose_name="Lots of eggs")

forms.py：

from django import forms
from crispy_forms.helper import FormHelper
from crispyy_forms.layout import (Layout, Row, Column)

from .models import Spam

class SpamForm(forms.ModelForm):
    class Meta():
        model = Spam
        fields = ('ham', 'eggs')
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_method = 'POST'
        self.helper.layout = Layout(
            Row(Column('ham', css_class='form-group col-12')),
            Row(Column('eggs', css_class='form-group col-12')),
            # HERE: How can I set the rows for the text area widget?
        )

结果 HTML：

from django.db import models

class Spam(models.Model).
    ham = models.CharField(max_length=10, blank=True, null=False, default='Some ham')
    eggs = models.TextField(blank=True, null=False, default='', verbose_name="Lots of eggs")

Answer 1

TextArea您需要更改您的字段正在使用的小部件的属性eggs。

class SpamForm(forms.ModelForm):
    # no changes here
    
    def __init__(self, *args, **kwargs):
        # No changes to your existing code, just add this:
        self.fields['eggs'].widget.attrs = {'rows': 2}

Answer 2

您可以通过传入行来直接使用脆皮形式“覆盖”行：

Row(Column('eggs', rows='2', css_class='form-group col-12')),

或与字段：

Field('eggs', rows='2')