mirror of
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95 lines
2.9 KiB
Python
95 lines
2.9 KiB
Python
"""
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Timeline models for tracking entity lifecycle events.
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"""
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import uuid
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import pghistory
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from django.db import models
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@pghistory.track()
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class EntityTimelineEvent(models.Model):
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"""
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Tracks significant events in entity lifecycles (opening, closing, relocation, etc.)
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"""
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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entity_id = models.UUIDField(db_index=True)
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entity_type = models.CharField(max_length=50, db_index=True)
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event_type = models.CharField(max_length=100, help_text="Type of event: opening, closing, relocation, etc.")
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event_date = models.DateField()
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event_date_precision = models.CharField(
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max_length=20,
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null=True,
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blank=True,
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choices=[
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('day', 'Day'),
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('month', 'Month'),
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('year', 'Year'),
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('decade', 'Decade'),
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]
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)
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title = models.CharField(max_length=255)
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description = models.TextField(null=True, blank=True)
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# Event details - for relocations, transfers, etc.
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from_entity_id = models.UUIDField(null=True, blank=True)
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to_entity_id = models.UUIDField(null=True, blank=True)
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from_location = models.ForeignKey(
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'entities.Park',
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null=True,
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blank=True,
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on_delete=models.SET_NULL,
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related_name='timeline_from_events'
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)
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to_location = models.ForeignKey(
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'entities.Park',
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null=True,
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blank=True,
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on_delete=models.SET_NULL,
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related_name='timeline_to_events'
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)
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from_value = models.TextField(null=True, blank=True)
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to_value = models.TextField(null=True, blank=True)
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# Moderation
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is_public = models.BooleanField(default=True)
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display_order = models.IntegerField(null=True, blank=True)
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# Tracking
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created_by = models.ForeignKey(
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'users.User',
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null=True,
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blank=True,
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on_delete=models.SET_NULL,
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related_name='timeline_events_created'
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)
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approved_by = models.ForeignKey(
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'users.User',
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null=True,
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blank=True,
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on_delete=models.SET_NULL,
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related_name='timeline_events_approved'
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)
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submission = models.ForeignKey(
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'moderation.ContentSubmission',
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null=True,
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blank=True,
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on_delete=models.SET_NULL,
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related_name='timeline_events'
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)
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created_at = models.DateTimeField(auto_now_add=True)
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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verbose_name = 'Timeline Event'
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verbose_name_plural = 'Timeline Events'
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ordering = ['-event_date', '-created_at']
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indexes = [
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models.Index(fields=['entity_type', 'entity_id', '-event_date']),
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models.Index(fields=['event_type', '-event_date']),
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models.Index(fields=['is_public', '-event_date']),
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]
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def __str__(self):
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return f"{self.entity_type} {self.entity_id}: {self.title} ({self.event_date})"
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