240 lines
10 KiB
Python
240 lines
10 KiB
Python
from django.db import models
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from django.conf import settings
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from django.utils import timezone
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from django.utils.text import slugify
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import uuid
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import markdown
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from location_field.models.plain import PlainLocationField as LocationField
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from core.media import (
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delete_image_derivatives_by_name,
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get_image_previous_name,
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safe_process_public_image,
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)
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from core.models import BaseModel
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class Event(BaseModel):
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class TypeChoices(models.TextChoices):
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ONLINE = 'online', 'آنلاین'
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ON_SITE = 'on_site', 'حضوری'
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HYBRID = 'hybrid', 'آنلاین/حضوری'
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class StatusChoices(models.TextChoices):
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DRAFT = 'draft', 'Draft'
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PUBLISHED = 'published', 'Published'
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CANCELLED = 'cancelled', 'Cancelled'
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COMPLETED = 'completed', 'Completed'
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title = models.CharField(max_length=255)
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slug = models.SlugField(max_length=255, unique=True, blank=True)
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description = models.TextField(help_text="Event description in Markdown format")
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start_time = models.DateTimeField()
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end_time = models.DateTimeField()
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address = models.CharField(max_length=255, blank=True, null=True, help_text="Physical address or venue name")
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location = LocationField(based_fields=['address'], zoom=15, blank=True, null=True,
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help_text="Select location on map")
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event_type = models.CharField(max_length=10, choices=TypeChoices.choices, default=TypeChoices.ON_SITE)
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online_link = models.URLField(max_length=500, blank=True, null=True,
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help_text="Link for online events (e.g., Zoom, Google Meet)")
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status = models.CharField(max_length=10, choices=StatusChoices.choices, default=StatusChoices.DRAFT)
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capacity = models.PositiveIntegerField(null=True, blank=True,
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help_text="Maximum number of attendees (leave blank for unlimited)")
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price = models.IntegerField(default=0, help_text="Price of the event. Leave blank for free events.")
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registration_start_date = models.DateTimeField(null=True, blank=True)
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registration_end_date = models.DateTimeField(null=True, blank=True)
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featured_image = models.ImageField(upload_to='events/featured/', null=True, blank=True)
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gallery_images = models.ManyToManyField('gallery.Gallery', blank=True, related_name='event_galleries',
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help_text="Images taken during or related to the event.")
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registration_success_markdown = models.TextField(
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blank=True, null=True,
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help_text="Optional markdown shown to users after a successful registration."
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)
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class Meta:
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ordering = ['-start_time']
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indexes = [
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models.Index(fields=['status', 'start_time']),
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models.Index(fields=['event_type']),
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]
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def __str__(self):
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return self.title
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def save(self, *args, **kwargs):
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previous_image_name = get_image_previous_name(self, "featured_image")
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current_image_name = self.featured_image.name if self.featured_image else None
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if not self.slug:
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self.slug = slugify(self.title)
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super().save(*args, **kwargs)
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if previous_image_name != current_image_name and previous_image_name:
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delete_image_derivatives_by_name(
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self.featured_image.storage if self.featured_image else None,
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previous_image_name,
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"event_featured",
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delete_original=True,
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)
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if previous_image_name != current_image_name and self.featured_image:
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safe_process_public_image(self.featured_image, "event_featured")
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@property
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def description_html(self):
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"""Convert markdown description to HTML"""
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return markdown.markdown(
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self.description,
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extensions=[
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'markdown.extensions.extra',
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'markdown.extensions.toc',
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]
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)
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@property
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def is_registration_open(self):
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now = timezone.now()
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return (self.registration_start_date is None or now >= self.registration_start_date) and \
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(self.registration_end_date is None or now <= self.registration_end_date)
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@property
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def current_attendees_count(self):
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"""Count confirmed attendees and currently held paid-checkout seats."""
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now = timezone.now()
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return self.registrations.filter(is_deleted=False).filter(
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models.Q(status__in=[Registration.StatusChoices.CONFIRMED, Registration.StatusChoices.ATTENDED])
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| models.Q(
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status=Registration.StatusChoices.PENDING,
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checkout_expires_at__gt=now,
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)
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).count()
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@property
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def has_available_slots(self):
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"""Check whether registration slots are available, treating None as unlimited capacity."""
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if self.capacity is None:
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return True
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return self.current_attendees_count < self.capacity
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class Registration(BaseModel):
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class StatusChoices(models.TextChoices):
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PENDING = 'pending', 'Pending'
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CONFIRMED = 'confirmed', 'Confirmed'
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CANCELLED = 'cancelled', 'Cancelled'
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ATTENDED = 'attended', 'Attended'
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class AttendanceVerificationSource(models.TextChoices):
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STAFF_ADMIN = 'staff_admin', 'Staff admin'
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STAFF_API = 'staff_api', 'Staff API'
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SYSTEM = 'system', 'System'
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HISTORICAL = 'historical', 'Historical backfill'
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class CancellationReasonChoices(models.TextChoices):
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CHECKOUT_EXPIRED = 'checkout_expired', 'Checkout expired'
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USER_CANCELLED = 'user_cancelled', 'User cancelled checkout'
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EVENT_CANCELLED = 'event_cancelled', 'Event cancelled'
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PAYMENT_FAILED = 'payment_failed', 'Payment failed'
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event = models.ForeignKey(Event, on_delete=models.CASCADE, related_name='registrations')
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user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='event_registrations')
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registered_at = models.DateTimeField(auto_now_add=True)
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checkout_started_at = models.DateTimeField(null=True, blank=True, editable=False)
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checkout_expires_at = models.DateTimeField(null=True, blank=True, editable=False)
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cancellation_reason = models.CharField(
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max_length=32,
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choices=CancellationReasonChoices.choices,
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blank=True,
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default='',
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editable=False,
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)
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status = models.CharField(max_length=10, choices=StatusChoices.choices,
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default=StatusChoices.PENDING)
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attendance_verified_at = models.DateTimeField(null=True, blank=True)
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attendance_verified_by = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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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='verified_event_attendance',
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)
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attendance_verification_source = models.CharField(
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max_length=20,
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choices=AttendanceVerificationSource.choices,
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blank=True,
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)
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ticket_id = models.UUIDField(default=uuid.uuid4, unique=True, editable=False)
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confirmation_notification_sent_at = models.DateTimeField(null=True, blank=True)
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cancellation_notification_sent_at = models.DateTimeField(null=True, blank=True)
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discount_code = models.ForeignKey(
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"payments.DiscountCode",
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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="registrations",
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)
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discount_amount = models.PositiveIntegerField(default=0)
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final_price = models.PositiveIntegerField(null=True, blank=True)
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class Meta:
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ordering = ['-registered_at']
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indexes = [
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models.Index(fields=['event', 'status']),
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models.Index(fields=['user']),
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]
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def __str__(self):
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return f"{self.user.username} registered for {self.event.title}"
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@property
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def status_label(self):
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"""Human-readable label for the current registration status."""
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return self.get_status_display()
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def save(self, *args, **kwargs):
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# detect create vs update
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is_create = self._state.adding
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old_status = None
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if not is_create and self.pk:
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old_status = (
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self.__class__.objects.only("status").get(pk=self.pk).status
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)
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# save first (so we have a pk + final values)
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super().save(*args, **kwargs)
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# 1) on create -> send confirmation if pending/confirmed (and not sent before)
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if is_create and self.status == self.StatusChoices.CONFIRMED and not self.confirmation_notification_sent_at:
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# lazy import to avoid circular import
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from apps.events.tasks import send_registration_confirmation_notification
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send_registration_confirmation_notification.delay(str(self.pk))
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self.confirmation_notification_sent_at = timezone.now()
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super().save(update_fields=["confirmation_notification_sent_at"])
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# 2) status changed -> cancelled
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if (not is_create) and (old_status != self.StatusChoices.CANCELLED) and (self.status == self.StatusChoices.CANCELLED) and (not self.cancellation_notification_sent_at):
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from apps.events.tasks import send_registration_cancellation_notification
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send_registration_cancellation_notification.delay(str(self.pk))
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self.cancellation_notification_sent_at = timezone.now()
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super().save(update_fields=["cancellation_notification_sent_at"])
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# 3) status changed -> confirmed (if not sent before)
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if (not is_create) and (old_status != self.StatusChoices.CONFIRMED) and (self.status == self.StatusChoices.CONFIRMED) and (not self.confirmation_notification_sent_at):
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from apps.events.tasks import send_registration_confirmation_notification
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send_registration_confirmation_notification.delay(str(self.pk))
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self.confirmation_notification_sent_at = timezone.now()
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super().save(update_fields=["confirmation_notification_sent_at"])
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from apps.gamification.services import sync_registration_attendance
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sync_registration_attendance(self)
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