Split the membership duration from the connection duration

changes:

Article:
remove COTISATION_TYPE, duration(_days), type_cotisation
add duration(_days)_connection, duration(_days)_membership

Vente:
remove COTISATION_TYPE, duration(_days), type_cotisation
add duration(_days)_connection, duration(_days)_membership
add method `test_membership_or_connection()` to replace
`bool(type_cotisation)`

Cotisation:
remove COTISATION_TYPE, date_start, date_end, type_cotisation
add date_start_con, date_end_con, date_start_memb, date_end_memb

create_cotis(date_start=False) -> create_cotis(date_start_con=False, date_start_memb=False)

+ migration
+ changes to use the new models in the remaining of the code

cotisations/api/serializers.py

@@ -64,8 +64,10 @@ class VenteSerializer(NamespacedHMSerializer):
             "number",
             "name",
             "prix",
-            "duration",
+            "duration_connection",
-            "type_cotisation",
+            "duration_days_connection",
+            "duration_membership",
+            "duration_days_membership",
             "prix_total",
             "api_url",
         )
@@ -77,7 +79,7 @@ class ArticleSerializer(NamespacedHMSerializer):
 
     class Meta:
         model = cotisations.Article
-        fields = ("name", "prix", "duration", "type_user", "type_cotisation", "api_url")
+        fields = ("name", "prix", "duration_membership", "duration_days_membership", "duration_connection", "duration_days_connection", "type_user", "api_url")
 
 
 class BanqueSerializer(NamespacedHMSerializer):
@@ -104,7 +106,7 @@ class CotisationSerializer(NamespacedHMSerializer):
 
     class Meta:
         model = cotisations.Cotisation
-        fields = ("vente", "type_cotisation", "date_start", "date_end", "api_url")
+        fields = ("vente", "type_cotisation", "date_start_con", "date_end_con", "date_start_memb", "date_end_memb", "api_url")
 
 
 class ReminderUsersSerializer(UserSerializer):

cotisations/migrations/0043_separation_membership_connection_p1.py

@@ -0,0 +1,117 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-09-20 17:19
+from __future__ import unicode_literals
+
+import django.core.validators
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cotisations', '0042_auto_20191120_0159'),
+    ]
+
+    operations = [
+#        migrations.RemoveField(
+#            model_name='article',
+#            name='duration',
+#        ),
+#        migrations.RemoveField(
+#            model_name='article',
+#            name='duration_days',
+#        ),
+#        migrations.RemoveField(
+#            model_name='article',
+#            name='type_cotisation',
+#        ),
+#        migrations.RemoveField(
+#            model_name='cotisation',
+#            name='date_end',
+#        ),
+#        migrations.RemoveField(
+#            model_name='cotisation',
+#            name='date_start',
+#        ),
+#        migrations.RemoveField(
+#            model_name='cotisation',
+#            name='type_cotisation',
+#        ),
+#        migrations.RemoveField(
+#            model_name='vente',
+#            name='duration',
+#        ),
+#        migrations.RemoveField(
+#            model_name='vente',
+#            name='duration_days',
+#        ),
+#        migrations.RemoveField(
+#            model_name='vente',
+#            name='type_cotisation',
+#        ),
+        migrations.AddField(
+            model_name='article',
+            name='duration_connection',
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(0)], verbose_name='duration of the connection (in months)'),
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='duration_days_connection',
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(0)], verbose_name='duration of the connection (in days, will be added to duration in months)'),
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='duration_days_membership',
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(0)], verbose_name='duration of the membership (in days, will be added to duration in months)'),
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='duration_membership',
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(0)], verbose_name='duration of the membership (in months)'),
+        ),
+        migrations.AddField(
+            model_name='cotisation',
+            name='date_end_con',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='end date for the connection'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='cotisation',
+            name='date_end_memb',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='end date for the membership'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='cotisation',
+            name='date_start_con',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='start date for the connection'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='cotisation',
+            name='date_start_memb',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='start date for the membership'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='vente',
+            name='duration_connection',
+            field=models.PositiveIntegerField(blank=True, null=True, verbose_name='duration of the connection (in months)'),
+        ),
+        migrations.AddField(
+            model_name='vente',
+            name='duration_days_connection',
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(0)], verbose_name='duration of the connection (in days, will be added to duration in months)'),
+        ),
+        migrations.AddField(
+            model_name='vente',
+            name='duration_days_membership',
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(0)], verbose_name='duration of the membership (in days, will be added to duration in months)'),
+        ),
+        migrations.AddField(
+            model_name='vente',
+            name='duration_membership',
+            field=models.PositiveIntegerField(blank=True, null=True, verbose_name='duration of the membership (in months)'),
+        ),
+    ]

cotisations/migrations/0044_separation_membership_connection_p2.py

@@ -0,0 +1,140 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-09-20 17:19
+from __future__ import unicode_literals
+
+import django.core.validators
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cotisations', '0043_separation_membership_connection_p1'),
+    ]
+
+    def split_dates(apps, schema_editor):
+        db_alias = schema_editor.connection.alias
+        cotisation = apps.get_model("cotisations", "Cotisation")
+        cotisations = cotisation.objects.using(db_alias).all()
+        for cotis in cotisations:
+            cotis.date_start_con = cotis.date_start
+            cotis.date_start_memb = cotis.date_start
+            cotis.date_end_con = cotis.date_end
+            cotis.date_end_memb = cotis.date_end
+            if cotis.type_cotisation == 'Connexion':
+                cotis.date_end_memb = cotis.date_start
+            if cotis.type_cotisation == 'Adhesion':
+                cotis.date_end_con = cotis.date_start
+            cotis.save()
+
+
+
+    def split_duration_articles_and_ventes(apps, schema_editor):
+        def split_duration(e):
+            e.duration_membership = e.duration
+            e.duration_connection = e.duration
+            e.duration_days_membership = e.duration_days
+            e.duration_days_connection = e.duration_days
+            if e.type_cotisation == 'Connexion':
+                e.duration_membership = 0
+                e.duration_days_membership = 0
+            if e.type_cotisation == 'Adhesion':
+                e.duration_connection = 0
+                e.duration_days_connection = 0
+            e.save()
+        db_alias = schema_editor.connection.alias
+        article = apps.get_model("cotisations", "Article")
+        vente = apps.get_model("cotisations", "Vente")
+        for a in article.objects.using(db_alias).all():
+            split_duration(a)
+        for v in vente.objects.using(db_alias).all():
+            split_duration(v)
+
+    def unsplit_dates(apps, schema_editor):
+        db_alias = schema_editor.connection.alias
+        cotisation = apps.get_model("cotisations", "Cotisation")
+        cotisations = cotisation.objects.using(db_alias).all()
+        for cotis in cotisations:
+            connection = cotis.date_start_con != cotis.date_end_con
+            adhesion = cotis.date_start_memb != cotis.date_end_memb
+            cotis.date_start = cotis.date_start_con
+            cotis.date_end = max(cotis.date_end_con, cotis.date_end_memb)
+            if connection:
+                cotis.type_cotisation = 'Connexion'
+            if adhesion:
+                cotis.type_cotisation = 'Adhesion'
+            if connection and adhesion:
+                cotis.type_cotisation = 'All'
+            if not (connection or adhesion):
+                cotis.type_cotisation = None
+            cotis.save()
+
+
+
+    def unsplit_duration_articles_and_ventes(apps, schema_editor):
+        def unsplit_duration(e):
+            e.duration = max(e.duration_membership, e.duration_connection)
+            e.duration_days = max(e.duration_days_membership, e.duration_days_connection)
+            connection = not (((e.duration_connection == 0) or (e.duration_connection__isnull)) and \
+                              ((e.duration_days_connection == 0) or (e.duration_days_connection__isnull)))
+            membership = not (((e.duration_membership == 0) or (e.duration_membership__isnull)) and \
+                              ((e.duration_days_membership == 0) or (e.duration_days_membership__isnull)))
+            if connection:
+                e.type_cotisation = 'Connection'
+            if membership:
+                e.type_cotisation = 'Adhesion'
+            if connection and membership:
+                e.type_cotisation = 'All'
+            if not (connection or membership):
+                e.type_cotisation = None
+            e.save()
+        db_alias = schema_editor.connection.alias
+        article = apps.get_model("cotisations", "Article")
+        vente = apps.get_model("cotisations", "Vente")
+        for a in article.objects.using(db_alias).all():
+            unsplit_duration(a)
+        for v in vente.objects.using(db_alias).all():
+            unsplit_duration(v)
+
+
+    operations = [
+        migrations.RunPython(split_dates, unsplit_dates),
+        migrations.RunPython(split_duration_articles_and_ventes, unsplit_duration_articles_and_ventes),
+#        migrations.RemoveField(
+#            model_name='article',
+#            name='duration',
+#        ),
+#        migrations.RemoveField(
+#            model_name='article',
+#            name='duration_days',
+#        ),
+#        migrations.RemoveField(
+#            model_name='article',
+#            name='type_cotisation',
+#        ),
+#        migrations.RemoveField(
+#            model_name='cotisation',
+#            name='date_end',
+#        ),
+#        migrations.RemoveField(
+#            model_name='cotisation',
+#            name='date_start',
+#        ),
+#        migrations.RemoveField(
+#            model_name='cotisation',
+#            name='type_cotisation',
+#        ),
+#        migrations.RemoveField(
+#            model_name='vente',
+#            name='duration',
+#        ),
+#        migrations.RemoveField(
+#            model_name='vente',
+#            name='duration_days',
+#        ),
+#        migrations.RemoveField(
+#            model_name='vente',
+#            name='type_cotisation',
+#        ),
+    ]

cotisations/migrations/0045_separation_membership_connection_p3.py

@@ -0,0 +1,53 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-09-20 17:19
+from __future__ import unicode_literals
+
+import django.core.validators
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cotisations', '0044_separation_membership_connection_p2'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='article',
+            name='duration',
+        ),
+        migrations.RemoveField(
+            model_name='article',
+            name='duration_days',
+        ),
+        migrations.RemoveField(
+            model_name='article',
+            name='type_cotisation',
+        ),
+        migrations.RemoveField(
+            model_name='cotisation',
+            name='date_end',
+        ),
+        migrations.RemoveField(
+            model_name='cotisation',
+            name='date_start',
+        ),
+        migrations.RemoveField(
+            model_name='cotisation',
+            name='type_cotisation',
+        ),
+        migrations.RemoveField(
+            model_name='vente',
+            name='duration',
+        ),
+        migrations.RemoveField(
+            model_name='vente',
+            name='duration_days',
+        ),
+        migrations.RemoveField(
+            model_name='vente',
+            name='type_cotisation',
+        ),
+    ]

cotisations/models.py

@@ -283,7 +283,8 @@ class Facture(BaseInvoice):
         """Returns every subscription associated with this invoice."""
         return Cotisation.objects.filter(
             vente__in=self.vente_set.filter(
-                Q(type_cotisation="All") | Q(type_cotisation="Adhesion")
+                ~(Q(duration_membership__isnull=True) | Q(duration_membership=0)) |\
+                ~(Q(duration_days_membership__isnull=True) | Q(duration_days_membership=0))
             )
         )
 
@@ -297,33 +298,18 @@ class Facture(BaseInvoice):
         for purchase in self.vente_set.all():
             if hasattr(purchase, "cotisation"):
                 cotisation = purchase.cotisation
-                if cotisation.type_cotisation == "Connexion":
+                cotisation.date_start_con = date_con
-                    cotisation.date_start = date_con
+                date_con += relativedelta(
-                    date_con += relativedelta(
+                    months=(purchase.duration_connection or 0) * purchase.number,
-                        months=(purchase.duration or 0) * purchase.number,
+                    days=(purchase.duration_days_connection or 0) * purchase.number,
-                        days=(purchase.duration_days or 0) * purchase.number,
+                )
-                    )
+                cotisation.date_end_con = date_con
-                    cotisation.date_end = date_con
+                cotisation.date_start_memb = date_adh
-                elif cotisation.type_cotisation == "Adhesion":
+                date_adh += relativedelta(
-                    cotisation.date_start = date_adh
+                    months=(purchase.duration_membership or 0) * purchase.number,
-                    date_adh += relativedelta(
+                    days=(purchase.duration_days_membership or 0) * purchase.number,
-                        months=(purchase.duration or 0) * purchase.number,
+                )
-                        days=(purchase.duration_days or 0) * purchase.number,
+                cotisation.date_end_memb = date_adh
-                    )
-                    cotisation.date_end = date_adh
-                else:  # it is assumed that adhesion is required for a connexion
-                    date = min(date_adh, date_con)
-                    cotisation.date_start = date
-                    date_adh += relativedelta(
-                        months=(purchase.duration or 0) * purchase.number,
-                        days=(purchase.duration_days or 0) * purchase.number,
-                    )
-                    date_con += relativedelta(
-                        months=(purchase.duration or 0) * purchase.number,
-                        days=(purchase.duration_days or 0) * purchase.number,
-                    )
-                    date = max(date_adh, date_con)
-                    cotisation.date_end = date
                 cotisation.save()
                 purchase.facture = self
                 purchase.save()
@@ -450,13 +436,6 @@ class Vente(RevMixin, AclMixin, models.Model):
             the effect of the purchase on the time agreed for this user)
     """
 
-    # TODO : change this to English
-    COTISATION_TYPE = (
-        ("Connexion", _("Connection")),
-        ("Adhesion", _("Membership")),
-        ("All", _("Both of them")),
-    )
-
     # TODO : change facture to invoice
     facture = models.ForeignKey(
         "BaseInvoice", on_delete=models.CASCADE, verbose_name=_("invoice")
@@ -466,27 +445,30 @@ class Vente(RevMixin, AclMixin, models.Model):
         validators=[MinValueValidator(1)], verbose_name=_("amount")
     )
     # TODO : change this field for a ForeinKey to Article 
+    # Note: With a foreign key, modifing an Article modifis the Purchase, wich is bad.
+    # To use a foreign key, you need to make Article read only
     name = models.CharField(max_length=255, verbose_name=_("article"))
     # TODO : change prix to price
     # TODO : this field is not needed if you use Article ForeignKey
     prix = models.DecimalField(max_digits=5, decimal_places=2, verbose_name=_("price"))
     # TODO : this field is not needed if you use Article ForeignKey
-    duration = models.PositiveIntegerField(
+    duration_connection = models.PositiveIntegerField(
-        blank=True, null=True, verbose_name=_("duration (in months)")
+        blank=True, null=True, verbose_name=_("duration of the connection (in months)")
     )
-    duration_days = models.PositiveIntegerField(
+    duration_days_connection = models.PositiveIntegerField(
         blank=True,
         null=True,
         validators=[MinValueValidator(0)],
-        verbose_name=_("duration (in days, will be added to duration in months)"),
+        verbose_name=_("duration of the connection (in days, will be added to duration in months)"),
     )
-    # TODO : this field is not needed if you use Article ForeignKey
+    duration_membership = models.PositiveIntegerField(
-    type_cotisation = models.CharField(
+        blank=True, null=True, verbose_name=_("duration of the membership (in months)")
-        choices=COTISATION_TYPE,
+    )
+    duration_days_membership = models.PositiveIntegerField(
         blank=True,
         null=True,
-        max_length=255,
+        validators=[MinValueValidator(0)],
-        verbose_name=_("subscription type"),
+        verbose_name=_("duration of the membership (in days, will be added to duration in months)"),
     )
 
     class Meta:
@@ -511,13 +493,17 @@ class Vente(RevMixin, AclMixin, models.Model):
         """
         if hasattr(self, "cotisation"):
             cotisation = self.cotisation
-            cotisation.date_end = cotisation.date_start + relativedelta(
+            cotisation.date_end_memb = cotisation.date_start_memb + relativedelta(
-                months=(self.duration or 0) * self.number,
+                months=(self.duration_membership or 0) * self.number,
-                days=(self.duration_days or 0) * self.number,
+                days=(self.duration_days_membership or 0) * self.number,
+            )
+            cotisation.date_end_con = cotisation.date_start_con + relativedelta(
+                months=(self.duration_connection or 0) * self.number,
+                days=(self.duration_days_connection or 0) * self.number,
             )
         return
 
-    def create_cotis(self, date_start=False):
+    def create_cotis(self, date_start_con=False, date_start_memb=False):
         """
         Creates a cotisation without initializing the dates (start and end ar set to self.facture.facture.date) and without saving it. You should use Facture.reorder_purchases to set the right dates.
         """
@@ -525,20 +511,29 @@ class Vente(RevMixin, AclMixin, models.Model):
             invoice = self.facture.facture
         except Facture.DoesNotExist:
             return
-        if not hasattr(self, "cotisation") and self.type_cotisation:
+        if not hasattr(self, "cotisation") and (self.duration_membership or self.duration_days_membership):
             cotisation = Cotisation(vente=self)
-            cotisation.type_cotisation = self.type_cotisation
+            if date_start_con:
-            if date_start:
+                cotisation.date_start_con = date_start_con
-                cotisation.date_start = date_start
+                cotisation.date_end_con = cotisation.date_start_con + relativedelta(
-                cotisation.date_end = cotisation.date_start + relativedelta(
+                    months=(self.duration_connection or 0) * self.number,
-                    months=(self.duration or 0) * self.number,
+                    days=(self.duration_days_connection or 0) * self.number,
-                    days=(self.duration_days or 0) * self.number,
+                )
+                self.save()
+                cotisation.save()
+            if date_start_memb:
+                cotisation.date_start_memb = date_start_memb
+                cotisation.date_end_memb = cotisation.date_start_memb + relativedelta(
+                    months=(self.duration_membership or 0) * self.number,
+                    days=(self.duration_days_membership or 0) * self.number,
                 )
                 self.save()
                 cotisation.save()
             else:
-                cotisation.date_start = invoice.date
+                cotisation.date_start_con = invoice.date
-                cotisation.date_end = invoice.date
+                cotisation.date_start_memb = invoice.date
+                cotisation.date_end_con = invoice.date
+                cotisation.date_end_memb = invoice.date
 
     def save(self, *args, **kwargs):
         """
@@ -546,9 +541,6 @@ class Vente(RevMixin, AclMixin, models.Model):
         It also update the associated cotisation in the changes have some
         effect on the user's cotisation
         """
-        # Checking that if a cotisation is specified, there is also a duration
-        if self.type_cotisation and not (self.duration or self.duration_days):
-            raise ValidationError(_("Duration must be specified for a subscription."))
         self.update_cotisation()
         super(Vente, self).save(*args, **kwargs)
 
@@ -629,6 +621,13 @@ class Vente(RevMixin, AclMixin, models.Model):
     def __str__(self):
         return str(self.name) + " " + str(self.facture)
 
+    def test_membership_or_connection(self):
+        """ Test if the purchase include membership or connecton
+        """
+        return self.duration_membership or \
+               self.duration_days_membership or \
+               self.duration_connection or \
+               self.duration_days_connection
 
 # TODO : change vente to purchase
 @receiver(post_save, sender=Vente)
@@ -645,7 +644,7 @@ def vente_post_save(**kwargs):
     if hasattr(purchase, "cotisation"):
         purchase.cotisation.vente = purchase
         purchase.cotisation.save()
-    if purchase.type_cotisation:
+    if purchase.test_membership_or_connection():
         purchase.create_cotis()
         purchase.cotisation.save()
         user = purchase.facture.facture.user
@@ -677,56 +676,54 @@ class Article(RevMixin, AclMixin, models.Model):
     It's represented by:
         * a name
         * a price
-        * a cotisation type (indicating if this article reprensents a
+        * a duration for the membership
-            cotisation or not)
+        * a duration for the connection
-        * a duration (if it is a cotisation)
         * a type of user (indicating what kind of user can buy this article)
     """
 
-    # TODO : Either use TYPE or TYPES in both choices but not both
     USER_TYPES = (
         ("Adherent", _("Member")),
         ("Club", _("Club")),
         ("All", _("Both of them")),
     )
 
-    COTISATION_TYPE = (
-        ("Connexion", _("Connection")),
-        ("Adhesion", _("Membership")),
-        ("All", _("Both of them")),
-    )
-
     name = models.CharField(max_length=255, verbose_name=_("designation"))
     # TODO : change prix to price
     prix = models.DecimalField(
         max_digits=5, decimal_places=2, verbose_name=_("unit price")
     )
-    duration = models.PositiveIntegerField(
+
+    duration_membership = models.PositiveIntegerField(
         blank=True,
         null=True,
         validators=[MinValueValidator(0)],
-        verbose_name=_("duration (in months)"),
+        verbose_name=_("duration of the membership (in months)")
     )
-    duration_days = models.PositiveIntegerField(
+    duration_days_membership = models.PositiveIntegerField(
         blank=True,
         null=True,
         validators=[MinValueValidator(0)],
-        verbose_name=_("duration (in days, will be added to duration in months)"),
+        verbose_name=_("duration of the membership (in days, will be added to duration in months)"),
     )
+    duration_connection = models.PositiveIntegerField(
+        blank=True,
+        null=True,
+        validators=[MinValueValidator(0)],
+        verbose_name=_("duration of the connection (in months)")
+    )
+    duration_days_connection = models.PositiveIntegerField(
+        blank=True,
+        null=True,
+        validators=[MinValueValidator(0)],
+        verbose_name=_("duration of the connection (in days, will be added to duration in months)"),
+    )
+
     type_user = models.CharField(
         choices=USER_TYPES,
         default="All",
         max_length=255,
         verbose_name=_("type of users concerned"),
     )
-    type_cotisation = models.CharField(
-        choices=COTISATION_TYPE,
-        default=None,
-        blank=True,
-        null=True,
-        max_length=255,
-        verbose_name=_("subscription type"),
-    )
     available_for_everyone = models.BooleanField(
         default=False, verbose_name=_("is available for every user")
     )
@@ -744,8 +741,6 @@ class Article(RevMixin, AclMixin, models.Model):
     def clean(self):
         if self.name.lower() == "solde":
             raise ValidationError(_("Solde is a reserved article name."))
-        if self.type_cotisation and not (self.duration or self.duration_days):
-            raise ValidationError(_("Duration must be specified for a subscription."))
 
     def __str__(self):
         return self.name
@@ -882,7 +877,7 @@ class Paiement(RevMixin, AclMixin, models.Model):
 
         # In case a cotisation was bought, inform the user, the
         # cotisation time has been extended too
-        if any(sell.type_cotisation for sell in invoice.vente_set.all()):
+        if any(sell.test_membership_or_connection() for sell in invoice.vente_set.all()):
             messages.success(
                 request,
                 _(
@@ -943,31 +938,21 @@ class Cotisation(RevMixin, AclMixin, models.Model):
     The model defining a cotisation. It holds information about the time a user
     is allowed when he has paid something.
     It characterised by :
-        * a date_start (the date when the cotisaiton begins/began
+        * a date_start_memb (the date when the membership begins/began
-        * a date_end (the date when the cotisation ends/ended
+        * a date_end_memb (the date when the membership ends/ended
-        * a type of cotisation (which indicates the implication of such
+        * a date_start_con (the date when the connection begins/began)
-            cotisation)
+        * a date_end_con (the date when the connection ends/ended)
         * a purchase (the related objects this cotisation is linked to)
     """
 
-    COTISATION_TYPE = (
-        ("Connexion", _("Connection")),
-        ("Adhesion", _("Membership")),
-        ("All", _("Both of them")),
-    )
-
     # TODO : change vente to purchase
     vente = models.OneToOneField(
         "Vente", on_delete=models.CASCADE, null=True, verbose_name=_("purchase")
     )
-    type_cotisation = models.CharField(
+    date_start_con = models.DateTimeField(verbose_name=_("start date for the connection"))
-        choices=COTISATION_TYPE,
+    date_end_con = models.DateTimeField(verbose_name=_("end date for the connection"))
-        max_length=255,
+    date_start_memb = models.DateTimeField(verbose_name=_("start date for the membership"))
-        default="All",
+    date_end_memb = models.DateTimeField(verbose_name=_("end date for the membership"))
-        verbose_name=_("subscription type"),
-    )
-    date_start = models.DateTimeField(verbose_name=_("start date"))
-    date_end = models.DateTimeField(verbose_name=_("end date"))
 
     class Meta:
         permissions = (
@@ -1037,9 +1022,14 @@ class Cotisation(RevMixin, AclMixin, models.Model):
         return (
             str(self.vente)
             + "from "
-            + str(self.date_start)
+            + str(self.date_start_memb)
             + " to "
-            + str(self.date_end)
+            + str(self.date_end_memb)
+            + " for membership, "
+            + str(self.date_start_con)
+            + " to "
+            + str(self.date_end_con)
+            + " for the connection."
         )
 
 

cotisations/templates/cotisations/aff_article.html

@@ -32,9 +32,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
         <tr>
             <th>{% trans "Article" %}</th>
             <th>{% trans "Price" %}</th>
-            <th>{% trans "Subscription type" %}</th>
+            <th>{% trans "Duration membership (in months)" %}</th>
-            <th>{% trans "Duration (in months)" %}</th>
+            <th>{% trans "Duration membership (in days)" %}</th>
-            <th>{% trans "Duration (in days)" %}</th>
+            <th>{% trans "Duration connection (in months)" %}</th>
+            <th>{% trans "Duration connection (in days)" %}</th>
             <th>{% trans "Concerned users" %}</th>
             <th>{% trans "Available for everyone" %}</th>
             <th></th>
@@ -44,9 +45,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     <tr>
         <td>{{ article.name }}</td>
         <td>{{ article.prix }}</td>
-        <td>{{ article.type_cotisation }}</td>
+        <td>{{ article.duration_membership }}</td>
-        <td>{{ article.duration }}</td>
+        <td>{{ article.duration_days_membership }}</td>
-        <td>{{ article.duration_days }}</td>
+        <td>{{ article.duration_connection }}</td>
+        <td>{{ article.duration_days_connection }}</td>
         <td>{{ article.type_user }}</td>
         <td>{{ article.available_for_everyone | tick }}</td>
         <td class="text-right">

cotisations/test_models.py

@@ -19,15 +19,17 @@ class VenteModelTests(TestCase):
     def test_one_day_cotisation(self):
         """
         It should be possible to have one day membership.
+        Add one day of membership and one day of connection.
         """
         date = timezone.now()
         purchase = Vente.objects.create(
             facture=self.f,
             number=1,
             name="Test purchase",
-            duration=0,
+            duration_connection=0,
-            duration_days=1,
+            duration_days_connection=1,
-            type_cotisation="All",
+            duration_membership=0,
+            duration_days_membership=1,
             prix=0,
         )
         self.f.reorder_purchases()
@@ -36,48 +38,66 @@ class VenteModelTests(TestCase):
             datetime.timedelta(days=1),
             delta=datetime.timedelta(seconds=1),
         )
+        self.assertAlmostEqual(
+            self.user.end_adhesion() - date,
+            datetime.timedelta(days=1),
+            delta=datetime.timedelta(seconds=1),
+        )
 
     def test_one_month_cotisation(self):
         """
         It should be possible to have one day membership.
+        Add one mounth of membership and one mounth of connection
         """
         date = timezone.now()
         Vente.objects.create(
             facture=self.f,
             number=1,
             name="Test purchase",
-            duration=1,
+            duration_connection=1,
-            duration_days=0,
+            duration_days_connection=0,
-            type_cotisation="All",
+            duration_membership=1,
+            duration_days_membership=0,
             prix=0,
         )
         self.f.reorder_purchases()
-        end = self.user.end_connexion()
+        end_con = self.user.end_connexion()
+        end_memb = self.user.end_adhesion()
         expected_end = date + relativedelta(months=1)
-        self.assertEqual(end.day, expected_end.day)
+        self.assertEqual(end_con.day, expected_end.day)
-        self.assertEqual(end.month, expected_end.month)
+        self.assertEqual(end_con.month, expected_end.month)
-        self.assertEqual(end.year, expected_end.year)
+        self.assertEqual(end_con.year, expected_end.year)
+        self.assertEqual(end_memb.day, expected_end.day)
+        self.assertEqual(end_memb.month, expected_end.month)
+        self.assertEqual(end_memb.year, expected_end.year)
 
     def test_one_month_and_one_week_cotisation(self):
         """
         It should be possible to have one day membership.
+        Add one mounth and one week of membership and one mounth 
+        and one week of connection
         """
         date = timezone.now()
         Vente.objects.create(
             facture=self.f,
             number=1,
             name="Test purchase",
-            duration=1,
+            duration_connection=1,
-            duration_days=7,
+            duration_days_connection=7,
-            type_cotisation="All",
+            duration_membership=1,
+            duration_days_membership=7,
             prix=0,
         )
         self.f.reorder_purchases()
-        end = self.user.end_connexion()
+        end_con = self.user.end_connexion()
+        end_memb = self.user.end_adhesion()
         expected_end = date + relativedelta(months=1, days=7)
-        self.assertEqual(end.day, expected_end.day)
+        self.assertEqual(end_con.day, expected_end.day)
-        self.assertEqual(end.month, expected_end.month)
+        self.assertEqual(end_con.month, expected_end.month)
-        self.assertEqual(end.year, expected_end.year)
+        self.assertEqual(end_con.year, expected_end.year)
+        self.assertEqual(end_memb.day, expected_end.day)
+        self.assertEqual(end_memb.month, expected_end.month)
+        self.assertEqual(end_memb.year, expected_end.year)
 
     def test_date_start_cotisation(self):
         """
@@ -87,15 +107,140 @@ class VenteModelTests(TestCase):
             facture=self.f,
             number=1,
             name="Test purchase",
-            duration=0,
+            duration_connection=0,
-            duration_days=1,
+            duration_days_connection=1,
-            type_cotisation = 'All',
+            duration_membership=0,
+            duration_deys_membership=1,
             prix=0
         )
-        v.create_cotis(date_start=timezone.make_aware(datetime.datetime(1998, 10, 16)))
+        v.create_cotis(date_start_con=timezone.make_aware(datetime.datetime(1998, 10, 16)), date_start_memb=timezone.make_aware(datetime.datetime(1998, 10, 16)))
         v.save()
-        self.assertEqual(v.cotisation.date_end, timezone.make_aware(datetime.datetime(1998, 10, 17)))
+        self.assertEqual(v.cotisation.date_end_con, timezone.make_aware(datetime.datetime(1998, 10, 17)))
+        self.assertEqual(v.cotisation.date_end_memb, timezone.make_aware(datetime.datetime(1998, 10, 17)))
 
+    def test_one_day_cotisation_membership_only(self):
+        """
+        It should be possible to have one day membership without connection.
+        Add one day of membership and no connection.
+        """
+        date = timezone.now()
+        purchase = Vente.objects.create(
+            facture=self.f,
+            number=1,
+            name="Test purchase",
+            duration_connection=0,
+            duration_days_connection=0,
+            duration_membership=0,
+            duration_days_membership=1,
+            prix=0,
+        )
+        self.f.reorder_purchases()
+        self.assertEqual(
+            self.user.end_connexion(),
+            None,
+        )
+        self.assertAlmostEqual(
+            self.user.end_adhesion() - date,
+            datetime.timedelta(days=1),
+            delta=datetime.timedelta(seconds=1),
+        )
+
+    def test_one_month_cotisation_membership_only(self):
+        """
+        It should be possible to have one month membership.
+        Add one mounth of membership and no connection
+        """
+        date = timezone.now()
+        Vente.objects.create(
+            facture=self.f,
+            number=1,
+            name="Test purchase",
+            duration_connection=0,
+            duration_days_connection=0,
+            duration_membership=1,
+            duration_days_membership=0,
+            prix=0,
+        )
+        self.f.reorder_purchases()
+        end_con = self.user.end_connexion()
+        end_memb = self.user.end_adhesion()
+        expected_end = date + relativedelta(months=1)
+        self.assertEqual(end_con, None)
+        self.assertEqual(end_memb.day, expected_end.day)
+        self.assertEqual(end_memb.month, expected_end.month)
+        self.assertEqual(end_memb.year, expected_end.year)
+
+    def test_one_month_and_one_week_cotisation_membership_only(self):
+        """
+        It should be possible to have one mounth and one week  membership.
+        Add one mounth and one week of membership and no connection.
+        """
+        date = timezone.now()
+        Vente.objects.create(
+            facture=self.f,
+            number=1,
+            name="Test purchase",
+            duration_connection=0,
+            duration_days_connection=0,
+            duration_membership=1,
+            duration_days_membership=7,
+            prix=0,
+        )
+        self.f.reorder_purchases()
+        end_con = self.user.end_connexion()
+        end_memb = self.user.end_adhesion()
+        expected_end = date + relativedelta(months=1, days=7)
+        self.assertEqual(end_con, None)
+        self.assertEqual(end_memb.day, expected_end.day)
+        self.assertEqual(end_memb.month, expected_end.month)
+        self.assertEqual(end_memb.year, expected_end.year)
+
+    def test_date_start_cotisation_membership_only(self):
+        """
+        It should be possible to add a cotisation with a specific start date
+        """
+        v = Vente(
+            facture=self.f,
+            number=1,
+            name="Test purchase",
+            duration_connection=0,
+            duration_days_connection=0,
+            duration_membership=0,
+            duration_days_membership=1,
+            prix=0
+        )
+        v.create_cotis(date_start_con=timezone.make_aware(datetime.datetime(1998, 10, 16)), date_start_memb=timezone.make_aware(datetime.datetime(1998, 10, 16)))
+        v.save()
+        self.assertEqual(v.cotisation.date_end_con, timezone.make_aware(datetime.datetime(1998, 10, 17)))
+        self.assertEqual(v.cotisation.date_end_memb, timezone.make_aware(datetime.datetime(1998, 10, 16)))
+
+    def test_cotisation_membership_diff_connection(self):
+        """
+        It should be possible to have purchase a membership longer
+        than the connection.
+        """
+        date = timezone.now()
+        Vente.objects.create(
+            facture=self.f,
+            number=1,
+            name="Test purchase",
+            duration_connection=1,
+            duration_days_connection=0,
+            duration_membership=2,
+            duration_days_membership=0,
+            prix=0,
+        )
+        self.f.reorder_purchases()
+        end_con = self.user.end_connexion()
+        end_memb = self.user.end_adhesion()
+        expected_end_con = date + relativedelta(months=1)
+        expected_end_memb = date + relativedelta(months=2)
+        self.assertEqual(end_con.day, expected_end_con.day)
+        self.assertEqual(end_con.month, expected_end_con.month)
+        self.assertEqual(end_con.year, expected_end_con.year)
+        self.assertEqual(end_memb.day, expected_end_memb.day)
+        self.assertEqual(end_memb.month, expected_end_memb.month)
+        self.assertEqual(end_memb.year, expected_end_memb.year)
 
     def tearDown(self):
         self.f.delete()
@@ -121,9 +266,10 @@ class FactureModelTests(TestCase):
             facture=invoice1,
             number=1,
             name="Test purchase",
-            duration=1,
+            duration_connection=1,
-            duration_days=0,
+            duration_days_connection=0,
-            type_cotisation="All",
+            duration_membership=1,
+            duration_days_membership=0,
             prix=0,
         )
         invoice1.reorder_purchases()
@@ -134,16 +280,20 @@ class FactureModelTests(TestCase):
             facture=invoice2,
             number=1,
             name="Test purchase",
-            duration=1,
+            duration_connection=1,
-            duration_days=0,
+            duration_days_connection=0,
-            type_cotisation="All",
+            duration_membership=1,
+            duration_days_membership=0,
             prix=0,
         )
         invoice1.reorder_purchases()
-        delta = relativedelta(self.user.end_connexion(), date)
+        delta_con = relativedelta(self.user.end_connexion(), date)
-        delta.microseconds = 0
+        delta_memb = relativedelta(self.user.end_adhesion(), date)
+        delta_con.microseconds = 0
+        delta_memb.microseconds = 0
         try:
-            self.assertEqual(delta, relativedelta(months=2))
+            self.assertEqual(delta_con, relativedelta(months=2))
+            self.assertEqual(delta_memb, relativedelta(months=2))
         except Exception as e:
             invoice1.delete()
             invoice2.delete()

cotisations/test_views.py

@@ -38,25 +38,28 @@ class NewFactureTests(TestCase):
         self.article_one_day = Article.objects.create(
             name="One day",
             prix=0,
-            duration=0,
+            duration_connection=0,
-            duration_days=1,
+            duration_days_connection=1,
-            type_cotisation="All",
+            duration_membership=0,
+            duration_days_membership=1,
             available_for_everyone=True,
         )
         self.article_one_month = Article.objects.create(
-            name="One day",
+            name="One mounth",
             prix=0,
-            duration=1,
+            duration_connection=1,
-            duration_days=0,
+            duration_days_connection=0,
-            type_cotisation="All",
+            duration_membership=1,
+            duration_days_membership=0,
             available_for_everyone=True,
         )
         self.article_one_month_and_one_week = Article.objects.create(
-            name="One day",
+            name="One mounth and one week",
             prix=0,
-            duration=1,
+            duration_connection=1,
-            duration_days=7,
+            duration_days_connection=7,
-            type_cotisation="All",
+            duration_membership=1,
+            duration_days_membership=7,
             available_for_everyone=True,
         )
         self.client.login(username="testUser", password="plopiplop")

cotisations/utils.py

@@ -105,8 +105,8 @@ def send_mail_voucher(invoice, request=None):
         "lastname": invoice.user.surname,
         "email": invoice.user.email,
         "phone": invoice.user.telephone,
-        "date_end": invoice.get_subscription().latest("date_end").date_end,
+        "date_end": invoice.get_subscription().latest("date_end").date_end_memb,
-        "date_begin": invoice.get_subscription().earliest("date_start").date_start,
+        "date_begin": invoice.get_subscription().earliest("date_start").date_start_memb,
     }
     templatename = CotisationsOption.get_cached_value(
         "voucher_template"
@@ -118,7 +118,7 @@ def send_mail_voucher(invoice, request=None):
         "name": "{} {}".format(invoice.user.name, invoice.user.surname),
         "asso_email": AssoOption.get_cached_value("contact"),
         "asso_name": AssoOption.get_cached_value("name"),
-        "date_end": invoice.get_subscription().latest("date_end").date_end,
+        "date_end": invoice.get_subscription().latest("date_end_memb").date_end_memb,
     }
 
     mail = EmailMessage(

cotisations/views.py

@@ -130,9 +130,10 @@ def new_facture(request, user, userid):
                         facture=new_invoice_instance,
                         name=article.name,
                         prix=article.prix,
-                        type_cotisation=article.type_cotisation,
+                        duration_connection=article.duration_connection,
-                        duration=article.duration,
+                        duration_days_connection=article.duration_days_connection,
-                        duration_days=article.duration_days,
+                        duration_membership=article.duration_membership,
+                        duration_days_membership=article.duration_days_membership,
                         number=quantity,
                     ) 
                     purchases.append(new_purchase)
@@ -262,8 +263,10 @@ def new_custom_invoice(request):
                     facture=new_invoice_instance,
                     name=article.name,
                     prix=article.prix,
-                    type_cotisation=article.type_cotisation,
+                    duration_membership=article.duration_membership,
-                    duration=article.duration,
+                    duration_days_membership=article.duration_membership,
+                    duration_connection=article.duration_connection,
+                    duration_days_connection=article.duration_days_connection,
                     number=quantity,
                 )
         discount_form.apply_to_invoice(new_invoice_instance)

users/models.py

@@ -703,8 +703,7 @@ class User(
                     facture__in=Facture.objects.filter(user=self).exclude(valid=False)
                 )
             )
-            .filter(Q(type_cotisation="All") | Q(type_cotisation="Adhesion"))
+            .aggregate(models.Max("date_end_memb"))["date_end_memb__max"]
-            .aggregate(models.Max("date_end"))["date_end__max"]
         )
         return date_max
 
@@ -724,8 +723,7 @@ class User(
                     facture__in=Facture.objects.filter(user=self).exclude(valid=False)
                 )
             )
-            .filter(Q(type_cotisation="All") | Q(type_cotisation="Connexion"))
+            .aggregate(models.Max("date_end_con"))["date_end_con__max"]
-            .aggregate(models.Max("date_end"))["date_end__max"]
         )
         return date_max
 
@@ -746,6 +744,10 @@ class User(
             return False
         else:
             return True
+        # it looks wrong, we should check if there is a cotisation where 
+        # were date_start_memb < timezone.now() < date_end_memb, 
+        # in case the user purshased a cotisation starting in the futur
+        # somehow
 
     def is_connected(self):
         """Methods, calculate and returns if the user has a valid membership AND a
@@ -765,6 +767,10 @@ class User(
             return False
         else:
             return self.is_adherent()
+        # it looks wrong, we should check if there is a cotisation where 
+        # were date_start_con < timezone.now() < date_end_con, 
+        # in case the user purshased a cotisation starting in the futur
+        # somehow
 
     def end_ban(self):
         """Methods, calculate and returns the end of a ban value date
@@ -926,7 +932,8 @@ class User(
         """
         if self.state == self.STATE_NOT_YET_ACTIVE:
             if self.facture_set.filter(valid=True).filter(
-                Q(vente__type_cotisation="All") | Q(vente__type_cotisation="Adhesion")
+                ~(Q(vente__duration_membership__isnull=True) | Q(vente__duration_membership=0)) | \
+                ~(Q(vente__duration_days_membership__isnull=True) | Q(vente__duration_days_membership=0))
             ).exists() or OptionalUser.get_cached_value("all_users_active"):
                 self.state = self.STATE_ACTIVE
                 self.save()