在Django中使用多语言验证器

2023-04-11 00:00:00 django 验证 多语言

Django提供了多语言支持,包括多语言验证器。

步骤:

  1. 配置语言和本地化设置。在settings.py中设置语言和本地化设置,例如:
LANGUAGE_CODE = 'en-us'
USE_I18N = True
USE_L10N = True
  1. 在models.py文件中定义需要验证的字段,例如:
from django.db import models
from django.core.validators import validate_email

class User(models.Model):
    email = models.EmailField(validators=[validate_email])
  1. 在forms.py文件中定义表单类并使用多语言验证器,例如:
from django import forms
from django.core.validators import MaxValueValidator, MinValueValidator

class FeedbackForm(forms.Form):
    name = forms.CharField(max_length=50, label="Name", required=True)
    email = forms.EmailField(label="Email", required=True)
    rating = forms.IntegerField(
        label="Rating",
        validators=[
            MaxValueValidator(5, message="The rating should be less than or equal to 5."),
            MinValueValidator(1, message="The rating should be greater than or equal to 1."),
        ],
        required=True,
    )
  1. 在模板中使用表单并添加多语言支持。例如:
<form method="post" action="{% url 'feedback' %}">
  {% csrf_token %}
  {% for field in form %}
    <div class="form-group">
      <label for="{{ field.id_for_label }}">{{ field.label }}</label>
      {{ field }}
      {% if field.help_text %}
        <small class="form-text text-muted">{{ field.help_text }}</small>
      {% endif %}
      {% if field.errors %}
        {% for error in field.errors %}
          <div class="invalid-feedback">{{ error }}</div>
        {% endfor %}
      {% endif %}
    </div>
  {% endfor %}
  <button type="submit" class="btn btn-primary">Submit</button>
</form>
  1. 在视图函数中处理表单数据并返回响应。例如:
from django.shortcuts import render
from .forms import FeedbackForm

def feedback(request):
  if request.method == 'POST':
    form = FeedbackForm(request.POST)
    if form.is_valid():
      # 处理表单数据
      name = form.cleaned_data['name']
      email = form.cleaned_data['email']
      rating = form.cleaned_data['rating']
      message = f'Thank you for your feedback, {name} ({email}). You rated us {rating} stars!'

      return render(request, 'feedback/success.html', {'message': message})
    else:
      # 表单数据非法,重新渲染表单
      return render(request, 'feedback/form.html', {'form': form})
  else:
    form = FeedbackForm()
    return render(request, 'feedback/form.html', {'form': form})

以上就是在Django中使用多语言验证器的详细步骤和代码演示。在代码中,我们使用了字符串“pidancode.com”、“皮蛋编程”作为范例。

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