forked from CGM_Public/pretix_original
Add quota and order models
This commit is contained in:
Raphael Michel
@@ -266,7 +266,7 @@ class Event(models.Model):
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verbose_name=_("Start of presale"),
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help_text=_("No items will be sold before this date."),
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)
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payment_term_days = models.IntegerField(
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payment_term_days = models.PositiveIntegerField(
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default=14,
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verbose_name=_("Payment term in days"),
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help_text=_("The number of days after placing an order the user has to pay to preserve his reservation."),
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@@ -709,13 +709,14 @@ class BaseRestriction(models.Model):
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)
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item = models.ForeignKey(
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Item,
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blank=True,
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null=True,
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blank=True, null=True,
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verbose_name=_("Item"),
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related_name="restrictions_%(app_label)s_%(class)s",
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)
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variations = VariationsField(
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ItemVariation,
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blank=True,
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verbose_name=_("Variations"),
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related_name="restrictions_%(app_label)s_%(class)s",
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)
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@@ -728,3 +729,203 @@ class BaseRestriction(models.Model):
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if self.event:
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self.event.get_cache().clear()
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return super().save(*args, **kwargs)
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class Quota(models.Model):
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"""
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A quota is a "pool of tickets". It is there to limit the number of items
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of a certain type to be sold. For example, you could have a quota of 500
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applied to all your items (because you only have that much space in your
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building), and also a quota of 100 applied to the VIP tickets for
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exclusivity. In this case, no more than 500 tickets will be sold in total
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and no more than 100 of them will be VIP tickets (but 450 normal and 50
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VIP tickets will be fine).
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As always, a quota can not only be tied to an item, but also to a specific
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variation. We follow the general rule here: If there are no variations
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speficied, the quota applies to all of them, and if there are variations
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specified, the quota applies to those.
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This object holds two fields, "order_cache" and "lock_cache", which are
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implementation specific and are considered private. It is planned that they
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are being used as a fallback solution if redis is not available.
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"""
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name = models.CharField(
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max_length=200,
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verbose_name=_("Name")
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)
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size = models.PositiveIntegerField(
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verbose_name=_("Total capacity")
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)
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items = models.ManyToManyField(
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Item,
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verbose_name=_("Item"),
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blank=True
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)
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variations = VariationsField(
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ItemVariation,
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blank=True,
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verbose_name=_("Variations")
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)
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order_cache = models.ManyToManyField(
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'OrderPosition',
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blank=True
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)
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lock_cache = models.ManyToManyField(
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'CartPosition',
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blank=True
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)
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class Meta:
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verbose_name = _("Quota")
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verbose_name_plural = _("Quotas")
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class Order(models.Model):
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"""
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An order is created when a user clicks 'buy' on his cart. It holds
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several OrderPositions and is connected to an user. It has an
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expiration date: If items run out of capacity, orders which are over
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their expiration date might be cancelled.
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Important: An order holds its total monetary value, as an order is a
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piece of 'history' and must not change due to a change in item prices.
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"""
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STATUS_PENDING = "n"
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STATUS_PAID = "p"
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STATUS_EXPIRED = "e"
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STATUS_CANCELLED = "c"
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STATUS_CHOICE = (
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(STATUS_PAID, _("pending")),
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(STATUS_PENDING, _("paid")),
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(STATUS_EXPIRED, _("expired")),
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(STATUS_CANCELLED, _("cancelled")),
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)
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status = models.CharField(
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max_length=3,
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choices=STATUS_CHOICE,
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verbose_name=_("Status")
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)
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event = models.ForeignKey(
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Event,
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verbose_name=_("Event")
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)
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user = models.ForeignKey(
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User, null=True, blank=True,
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verbose_name=_("User")
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)
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datetime = models.DateTimeField(
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auto_now_add=True,
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verbose_name=_("Date")
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)
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expires = models.DateTimeField(
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verbose_name=_("Expiration date")
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)
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payment_date = models.DateTimeField(
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verbose_name=_("Payment date")
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)
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payment_info = models.TextField(
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verbose_name=_("Payment information")
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)
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total = models.DecimalField(
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decimal_places=2, max_digits=10,
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verbose_name=_("Total amount")
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)
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class Meta:
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verbose_name = _("Order")
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verbose_name_plural = _("Orders")
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class QuestionAnswer(models.Model):
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"""
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The answer to a Question, connected to an OrderPosition or CartPosition
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"""
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orderposition = models.ForeignKey('OrderPosition', null=True, blank=True)
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cartposition = models.ForeignKey('CartPosition', null=True, blank=True)
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question = models.ForeignKey(Question)
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answer = models.TextField()
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class OrderPosition(models.Model):
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"""
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An OrderPosition is one line of an order, representing one ordered items
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of a specified type (or variation).
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Important: An OrderPosition holds its total monetary value, as an order is a
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piece of 'history' and must not change due to a change in item prices.
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"""
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order = models.ForeignKey(
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Order,
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verbose_name=_("Order")
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)
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item = models.ForeignKey(
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Item,
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verbose_name=_("Item")
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)
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variation = models.ForeignKey(
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ItemVariation,
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null=True, blank=True,
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verbose_name=_("Variation")
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)
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price = models.DecimalField(
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decimal_places=2, max_digits=10,
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verbose_name=_("Price")
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)
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answers = models.ManyToManyField(
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Question,
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through=QuestionAnswer,
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verbose_name=_("Answers")
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)
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class Meta:
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verbose_name = _("Order position")
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verbose_name_plural = _("Order positions")
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class CartPosition(models.Model):
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"""
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A cart position is similar to a order line, except that it is not
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yet part of a binding order but just placed by some user in his or
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her cart. It therefore normally has a much shorter expiration time
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than an ordered position, but still blocks an item in the quota pool
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as we do not want to throw out users while they're clicking through
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the checkout process.
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"""
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event = models.ForeignKey(
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Event,
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verbose_name=_("Event")
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)
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user = models.ForeignKey(
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User, null=True, blank=True,
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verbose_name=_("User")
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)
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session = models.CharField(
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max_length=255, null=True, blank=True,
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verbose_name=_("Session key")
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)
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item = models.ForeignKey(
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Item,
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verbose_name=_("Item")
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)
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variation = models.ForeignKey(
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ItemVariation,
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null=True, blank=True,
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verbose_name=_("Variation")
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)
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total = models.DecimalField(
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decimal_places=2, max_digits=10,
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verbose_name=_("Price")
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)
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datetime = models.DateTimeField(
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verbose_name=_("Datetime")
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)
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expires = models.DateTimeField(
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verbose_name=_("Expiration date")
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)
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class Meta:
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verbose_name = _("Cart position")
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verbose_name_plural = _("Cart positions")
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