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76 lines
2.1 KiB
Python
76 lines
2.1 KiB
Python
import uuid
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from common.json import JSONEncoder
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from django import db
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from django.utils.translation import gettext_lazy as _
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from .metadata import Metadata
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class MetadataFormat(db.models.Model):
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'''
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A format from the Metadata for an indexed `Media` item.
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'''
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class Meta:
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db_table = f'{Metadata._meta.db_table}_format'
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verbose_name = _('Format from Media Metadata')
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verbose_name_plural = _('Formats from Media Metadata')
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unique_together = (
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('metadata', 'site', 'key', 'number'),
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)
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ordering = ['site', 'key', 'number']
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uuid = db.models.UUIDField(
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_('uuid'),
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primary_key=True,
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editable=False,
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default=uuid.uuid4,
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help_text=_('UUID of the format'),
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)
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metadata = db.models.ForeignKey(
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Metadata,
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# on_delete=models.DO_NOTHING,
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on_delete=db.models.CASCADE,
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related_name='format',
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help_text=_('Metadata the format belongs to'),
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null=False,
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)
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site = db.models.CharField(
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_('site'),
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max_length=256,
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blank=True,
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db_index=True,
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null=False,
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default='Youtube',
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help_text=_('Site from which the format is available'),
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)
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key = db.models.CharField(
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_('key'),
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max_length=256,
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blank=True,
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db_index=True,
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null=False,
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default='',
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help_text=_('Media identifier at the site from which this format is available'),
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)
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number = db.models.PositiveIntegerField(
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_('number'),
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blank=False,
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null=False,
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help_text=_('Ordering number for this format'),
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)
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value = db.models.JSONField(
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_('value'),
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encoder=JSONEncoder,
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null=False,
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default=dict,
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help_text=_('JSON metadata format object'),
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)
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def __str__(self):
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template = '#{:n} "{}" from {}: {}'
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return template.format(
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self.number,
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self.key,
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self.site,
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self.value.get('format') or self.value.get('format_id'),
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)
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