forked from DGNum/gestioCOF
151 lines
5.2 KiB
Python
151 lines
5.2 KiB
Python
"""
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Event framework for GestioCOF and GestioBDS.
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The events implemented in this module provide two types of customisations to event
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creators (the COF and BDS staff): options and extra (text) fields.
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Options
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-------
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An option is an extra field in the registration form with a predefined list of available
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choices. Any number of options can be added to an event.
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For instance, a typical use-case is events where meals are served to participants
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with different possible menus, say: vegeterian / vegan / without pork / etc. This
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example can be implemented with an `Option(name="menu")` and an `OptionChoice` for each
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available menu.
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In this example, the choice was exclusive: participants can only chose one menu. For
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situations, where multiple choices can be made at the same time, use the `multi_choices`
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flag.
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Extra fields
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------------
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Extra fields can also be added to the registration form that can receive arbitrary text.
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Typically, this can be a "remark" field (prefer the LONGTEXT option in this case) or
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small form entries such as "phone number" or "emergency contact" (prefer the SHORTTEXT
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option in this case).
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"""
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from django.contrib.auth import get_user_model
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from django.db import models
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from django.utils.translation import gettext_lazy as _
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User = get_user_model()
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class Event(models.Model):
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title = models.CharField(_("titre"), max_length=200)
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location = models.CharField(_("lieu"), max_length=200)
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start_date = models.DateTimeField(_("date de début"), blank=True, null=True)
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end_date = models.DateTimeField(_("date de fin"), blank=True, null=True)
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description = models.TextField(_("description"), blank=True)
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image = models.ImageField(
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_("image"), blank=True, null=True, upload_to="imgs/events/"
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)
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registration_open = models.BooleanField(_("inscriptions ouvertes"), default=True)
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old = models.BooleanField(_("archiver (événement fini)"), default=False)
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subscribers = models.ManyToManyField(
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User, through="Registration", verbose_name=_("inscrit⋅e⋅s")
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)
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class Meta:
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verbose_name = _("événement")
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verbose_name_plural = _("événements")
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def __str__(self):
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return self.title
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class Option(models.Model):
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"""Extra form fields with a limited set of available choices.
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The available choices are given by `OptionChoice`s (see below). A typical use-case
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is events where the participants have the choice between different menus (e.g.
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vegan / vegetarian / without-pork / etc).
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"""
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event = models.ForeignKey(Event, on_delete=models.CASCADE, related_name="options")
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name = models.CharField(_("option d'événement"), max_length=200)
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multi_choices = models.BooleanField(_("choix multiples"), default=False)
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class Meta:
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verbose_name = _("option d'événement")
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verbose_name_plural = _("options d'événement")
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def __str__(self):
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return self.name
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class OptionChoice(models.Model):
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"""A possible choice for an event option."""
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option = models.ForeignKey(Option, on_delete=models.CASCADE, related_name="choices")
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choice = models.CharField(_("choix"), max_length=200)
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class Meta:
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verbose_name = _("choix d'option d'événement")
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verbose_name_plural = _("choix d'option d'événement")
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def __str__(self):
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return self.choice
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class ExtraField(models.Model):
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"""Extra event field receiving arbitrary text.
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Extra text field that can be added by event creators to the event registration form.
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Typical examples are "remarks" fields (of type LONGTEXT) or more specific fields
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such as "emergency contact" (of type SHORTTEXT probably?).
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"""
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LONGTEXT = "longtext"
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SHORTTEXT = "shorttext"
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FIELD_TYPE = [
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(SHORTTEXT, _("texte court (une ligne)")),
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(LONGTEXT, _("texte long (plusieurs lignes)")),
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]
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event = models.ForeignKey(
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Event, on_delete=models.CASCADE, related_name="extra_fields"
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)
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name = models.CharField(_("champ d'événement supplémentaire"), max_length=200)
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field_type = models.CharField(_("type de champ"), max_length=9, choices=FIELD_TYPE)
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class ExtraFieldContent(models.Model):
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"""Value entered in an extra field."""
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field = models.ForeignKey(ExtraField, on_delete=models.CASCADE)
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registration = models.ForeignKey(
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"Registration", on_delete=models.CASCADE, related_name="extra_info"
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)
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content = models.TextField(_("contenu du champ"))
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class Meta:
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verbose_name = _("contenu d'un champ événement supplémentaire")
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verbose_name_plural = _("contenus d'un champ événement supplémentaire")
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def __str__(self):
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max_length = 50
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if len(self.content) > max_length:
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return self.content[: max_length - 1] + "…"
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else:
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return self.content
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class Registration(models.Model):
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"""A user registration to an event."""
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event = models.ForeignKey(Event, on_delete=models.CASCADE)
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user = models.ForeignKey(User, on_delete=models.CASCADE)
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options_choices = models.ManyToManyField(OptionChoice)
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class Meta:
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verbose_name = _("inscription à un événement")
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verbose_name_plural = _("inscriptions à un événement")
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def __str__(self):
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return "inscription de {} à {}".format(self.user, self.event)
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