Django 翻译国际化和本地化：forms，模型，表格

Question

我有两个问题。 如何在 forms 中翻译：a) 标签 b) 表单验证错误？

forms.py

from django import forms
from django.db.models import Max, Min
from .models import Application, FlowRate, WaterFilterSubType, Fineness, Dirt
from .models import DirtProperties, Flange

class InputDataWaterForm(forms.Form):
    '''Application'''
    choices = list(Application.objects.values_list('id','application'))
    application = forms.ChoiceField(choices = choices, initial="1", label="Specify application:")
    ....

    def clean(self):
        cleaned_data = super(InputDataWaterForm, self).clean()
        application = cleaned_data.get('application')
    ...

        '''OTHER CONDITIONS if not flowrate ...'''
        if not (flowrate or pressure or dirt or dirtproperties or
            application or fineness or temperature or
            flange or atex or aufstellung or ventil):
            raise forms.ValidationError('PLEASE ENTER THE REQUIRED INFO')

如何翻译数据库中表的内容？ 所有记录，例如。 必须翻译表中的产品名称。

models.py

from django.db import models

'''FILTER PROPERTIES LIKE COLOR'''
class FP_sealing(models.Model):
    value = models.CharField('Material Sealing', max_length=10)
    descr = models.CharField('Description', max_length=200, default="")
    def __str__(self):
        return("Seal: " + self.value)

谢谢

Answer 1

翻译通常使用Django 的翻译框架完成。 对于急切的翻译，使用gettext ，对于惰性翻译（应在渲染时计算的翻译），使用gettext_lazy 。 例如，您可以使用以下方式翻译您的应用程序：

from django import forms
from django.db.models import Max, Min
from .models import Application, FlowRate, WaterFilterSubType, Fineness, Dirt
from .models import DirtProperties, Flange
from django.utils.translation import gettext_lazy as _

class InputDataWaterForm(forms.Form):
    '''Application'''
    choices = list(Application.objects.values_list('id','application'))
    application = forms.ChoiceField(choices = choices, initial="1", label=_("Specify application:"))
    # …

    def clean(self):
        cleaned_data = super(InputDataWaterForm, self).clean()
        application = cleaned_data.get('application')
        # …

        '''OTHER CONDITIONS if not flowrate …'''
        if not (flowrate or pressure or dirt or dirtproperties or
            application or fineness or temperature or
            flange or atex or aufstellung or ventil):
            raise forms.ValidationError(_('PLEASE ENTER THE REQUIRED INFO'))

对于模型中的选择值，如文档中所述：

 from django.utils.translation import gettext_lazy as _ class Student(models.Model): class YearInSchool(models.TextChoices): FRESHMAN = 'FR', _('Freshman') SOPHOMORE = 'SO', _('Sophomore') JUNIOR = 'JR', _('Junior') SENIOR = 'SR', _('Senior') GRADUATE = 'GR', _('Graduate') year_in_school = models.CharField( max_length=2, choices=YearInSchool.choices, default=YearInSchool.FRESHMAN, ) def is_upperclass(self): return self.year_in_school in { self.YearInSchool.JUNIOR, self.YearInSchool.SENIOR, }

然后你可以运行makemessages命令 [Django-doc]来制作翻译文件：

django-admin makemessages --locale=

Django 然后将生成*.po文件，您可以在其中定义您定义的字符串的翻译。

然后您可以使用compilemessages命令 [Django-doc]将这些翻译文件编译为*.mo文件：

django-admin compilemessages --locale=