apps.py 文件源码

def record_plugin_history(self, sender, instance, **kwargs):
        """When a plugin is created or edited"""
        from cms.models import CMSPlugin, Page
        from .models import EditHistory
        if not isinstance(instance, CMSPlugin):
            return

        user_id = cache.get('cms-user-id')
        comment = cache.get('cms-comment')
        content = generate_content(instance)
        if content is None:
            return

        # Don't record a history of change if nothing changed.
        history = EditHistory.objects.filter(plugin_id=instance.id)
        if history.count() > 0:
            # Temporary history object for uuid
            this = EditHistory(content=content)
            latest = history.latest()
            if latest.content == content or this.uuid == latest.uuid:
                return

        EditHistory.objects.record(instance, user_id, comment, content)