2019-06-03 14:59:18 +00:00
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'''
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Custom model fields for the Save Point Radio project.
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'''
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from django.core import validators
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from django.db import models
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from django.utils.translation import ugettext_lazy as _
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from .forms import ALLOWED_SCHEMES, RadioIRIFormField
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class RadioIRIField(models.TextField):
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'''
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A custom URL model field that allows schemes that match those from
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Liquidsoap. This is necessary due to a bug in how Django currently
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handles custom URLFields:
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https://code.djangoproject.com/ticket/25594
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https://stackoverflow.com/questions/41756572/
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'''
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2019-06-03 18:41:23 +00:00
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# TODO: Because of a shortcoming of Django's URLValidator code, the
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# 'file://' scheme does not validate properly on most cases due to
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# incompatibilities with optional hostnames. Disabling the custom field
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# for now until I can figure out a non-lethal way of handling this.
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# https://code.djangoproject.com/ticket/25595
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2019-06-03 14:59:18 +00:00
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default_validators = [validators.URLValidator(schemes=ALLOWED_SCHEMES)]
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description = _("Long IRI")
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def __init__(self, verbose_name=None, name=None, **kwargs):
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# This is a limit for Internet Explorer URLs
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kwargs.setdefault('max_length', 2000)
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super().__init__(verbose_name, name, **kwargs)
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def deconstruct(self):
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name, path, args, kwargs = super().deconstruct()
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if kwargs.get("max_length") == 2000:
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del kwargs['max_length']
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return name, path, args, kwargs
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def formfield(self, **kwargs):
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return super().formfield(**{
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'form_class': RadioIRIFormField,
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**kwargs,
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})
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