mirror of
https://github.com/SectorLabs/django-localized-fields.git
synced 2025-04-24 19:32:53 +03:00
91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
from typing import List
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from django import forms
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from django.conf import settings
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from django.forms import MultiWidget
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from .localized_value import LocalizedValue
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class LocalizedFieldWidget(MultiWidget):
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"""Widget that has an input box for every language."""
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def __init__(self, *args, **kwargs):
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"""Initializes a new instance of :see:LocalizedFieldWidget."""
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widgets = []
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for _ in settings.LANGUAGES:
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widgets.append(forms.Textarea())
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super(LocalizedFieldWidget, self).__init__(widgets, *args, **kwargs)
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def decompress(self, value: LocalizedValue) -> List[str]:
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"""Decompresses the specified value so
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it can be spread over the internal widgets.
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Arguments:
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value:
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The :see:LocalizedValue to display in this
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widget.
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Returns:
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All values to display in the inner widgets.
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"""
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result = []
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for lang_code, _ in settings.LANGUAGES:
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if value:
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result.append(value.get(lang_code))
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else:
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result.append(None)
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return result
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class LocalizedFieldForm(forms.MultiValueField):
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"""Form for a localized field, allows editing
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the field in multiple languages."""
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widget = LocalizedFieldWidget()
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def __init__(self, *args, **kwargs):
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"""Initializes a new instance of :see:LocalizedFieldForm."""
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fields = []
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for lang_code, _ in settings.LANGUAGES:
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field_options = {'required': False}
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if lang_code == settings.LANGUAGE_CODE:
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field_options['required'] = True
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field_options['label'] = lang_code
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fields.append(forms.fields.CharField(**field_options))
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super(LocalizedFieldForm, self).__init__(
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fields,
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require_all_fields=False
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)
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def compress(self, value: List[str]) -> LocalizedValue:
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"""Compresses the values from individual fields
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into a single :see:LocalizedValue instance.
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Arguments:
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value:
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The values from all the widgets.
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Returns:
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A :see:LocalizedValue containing all
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the value in several languages.
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"""
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localized_value = LocalizedValue()
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for (lang_code, _), value in zip(settings.LANGUAGES, value):
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localized_value.set(lang_code, value)
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return localized_value
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