mirror of
https://github.com/pacnpal/thrillwiki_django_no_react.git
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119 lines
3.8 KiB
Python
119 lines
3.8 KiB
Python
from django.db import models
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from django.conf import settings
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from django.contrib.contenttypes.fields import GenericForeignKey
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from django.contrib.contenttypes.models import ContentType
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from .managers import CommentThreadManager, ThreadedModelManager
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class CommentThread(models.Model):
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"""
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A thread of comments that can be attached to any model instance,
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including historical versions.
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"""
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content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
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object_id = models.PositiveIntegerField()
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content_object = GenericForeignKey('content_type', 'object_id')
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title = models.CharField(max_length=255, blank=True)
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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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created_by = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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on_delete=models.SET_NULL,
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null=True,
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related_name='created_comment_threads'
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)
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is_locked = models.BooleanField(default=False)
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is_hidden = models.BooleanField(default=False)
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objects = CommentThreadManager()
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class Meta:
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indexes = [
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models.Index(fields=['content_type', 'object_id']),
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]
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ordering = ['-created_at']
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def __str__(self):
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return f"Comment Thread on {self.content_object} - {self.title}"
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class CommentThreads:
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"""
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Helper class to manage comment threads for a model instance.
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This is used instead of direct inheritance to avoid historical model issues.
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"""
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def __init__(self, instance):
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self.instance = instance
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self._info = {}
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def get_info(self):
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"""Get or compute comment thread information."""
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if not self._info:
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ct = ContentType.objects.get_for_model(self.instance.__class__)
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self._info = {
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'count': CommentThread.objects.filter(
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content_type=ct,
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object_id=self.instance.pk
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).count(),
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'content_type': ct,
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'object_id': self.instance.pk
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}
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return self._info
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def get_threads(self):
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"""Get comment threads for this instance."""
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info = self.get_info()
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return CommentThread.objects.filter(
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content_type=info['content_type'],
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object_id=info['object_id']
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)
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def add_thread(self, title='', created_by=None):
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"""Create a new comment thread for this instance."""
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info = self.get_info()
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thread = CommentThread.objects.create(
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content_type=info['content_type'],
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object_id=info['object_id'],
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title=title,
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created_by=created_by
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)
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self._info = {} # Clear cache
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return thread
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def get_comment_threads(instance):
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"""Get or create a CommentThreads helper for a model instance."""
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if not hasattr(instance, '_comment_threads'):
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instance._comment_threads = CommentThreads(instance)
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return instance._comment_threads
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class Comment(models.Model):
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"""Individual comment within a thread."""
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thread = models.ForeignKey(
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CommentThread,
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on_delete=models.CASCADE,
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related_name='comments'
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)
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author = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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on_delete=models.SET_NULL,
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null=True,
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related_name='comments'
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)
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content = models.TextField()
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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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is_edited = models.BooleanField(default=False)
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is_hidden = models.BooleanField(default=False)
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parent = models.ForeignKey(
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'self',
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on_delete=models.CASCADE,
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null=True,
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blank=True,
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related_name='replies'
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)
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class Meta:
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ordering = ['created_at']
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def __str__(self):
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return f"Comment by {self.author} on {self.created_at}"
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