Polymorphic transaction

apps/note/admin.py

@@ -7,7 +7,8 @@ from polymorphic.admin import PolymorphicChildModelAdmin, \
     PolymorphicChildModelFilter, PolymorphicParentModelAdmin
 
 from .models.notes import Alias, Note, NoteClub, NoteSpecial, NoteUser
-from .models.transactions import Transaction, TemplateCategory, TransactionTemplate, TransactionType
+from .models.transactions import Transaction, TemplateCategory, TransactionTemplate, \
+    TemplateTransaction, MembershipTransaction
 
 
 class AliasInlines(admin.TabularInline):
@@ -97,13 +98,14 @@ class NoteUserAdmin(PolymorphicChildModelAdmin):
 
 
 @admin.register(Transaction)
-class TransactionAdmin(admin.ModelAdmin):
+class TransactionAdmin(PolymorphicParentModelAdmin):
     """
     Admin customisation for Transaction
     """
+    child_models = (TemplateTransaction, MembershipTransaction)
     list_display = ('created_at', 'poly_source', 'poly_destination',
-                    'quantity', 'amount', 'transaction_type', 'valid')
+                    'quantity', 'amount', 'valid')
-    list_filter = ('transaction_type', 'valid')
+    list_filter = ('valid',)
     autocomplete_fields = (
         'source',
         'destination',
@@ -132,7 +134,7 @@ class TransactionAdmin(admin.ModelAdmin):
         """
         if obj:  # user is editing an existing object
             return 'created_at', 'source', 'destination', 'quantity',\
-                   'amount', 'transaction_type'
+                   'amount'
         return []
 
 
@@ -161,11 +163,3 @@ class TemplateCategoryAdmin(admin.ModelAdmin):
     """
     list_display = ('name', )
     list_filter = ('name', )
-
-@admin.register(TransactionType)
-class TransactionTypeAdmin(admin.ModelAdmin):
-    """
-    Admin customisation for TransactionTemplate
-    """
-    list_display = ('name', )
-    list_filter = ('name', )

apps/note/forms.py

@@ -4,7 +4,7 @@
 from dal import autocomplete
 from django import forms
 
-from .models import Transaction, TransactionTemplate
+from .models import Transaction, TransactionTemplate, TemplateTransaction
 
 
 class TransactionTemplateForm(forms.ModelForm):
@@ -71,12 +71,13 @@ class ConsoForm(forms.ModelForm):
             name=self.data['button']).get()
         self.instance.destination = button.destination
         self.instance.amount = button.amount
-        self.instance.transaction_type = 'bouton'
+        self.instance.reason = '{} ({})'.format(button.name, button.category)
-        self.instance.reason = button.name
+        self.instance.name = button.name
+        self.instance.category = button.category
         super().save(commit)
 
     class Meta:
-        model = Transaction
+        model = TemplateTransaction
         fields = ('source', )
 
         # Le champ d'utilisateur est remplacé par un champ d'auto-complétion.

apps/note/models/__init__.py

@@ -3,11 +3,12 @@
 
 from .notes import Alias, Note, NoteClub, NoteSpecial, NoteUser
 from .transactions import MembershipTransaction, Transaction, \
-    TemplateCategory, TransactionTemplate, TransactionType
+    TemplateCategory, TransactionTemplate, TemplateTransaction
 
 __all__ = [
     # Notes
     'Alias', 'Note', 'NoteClub', 'NoteSpecial', 'NoteUser',
     # Transactions
-    'MembershipTransaction', 'Transaction', 'TemplateCategory', 'TransactionTemplate','TransactionType',
+    'MembershipTransaction', 'Transaction', 'TemplateCategory', 'TransactionTemplate',
+    'TemplateTransaction',
 ]

apps/note/models/transactions.py

@@ -5,6 +5,7 @@ from django.db import models
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
 from django.urls import reverse
+from polymorphic.models import PolymorphicModel
 
 from .notes import Note, NoteClub
 
@@ -77,27 +78,7 @@ class TransactionTemplate(models.Model):
         return reverse('note:template_update', args=(self.pk, ))
 
 
-class TransactionType(models.Model):
+class Transaction(PolymorphicModel):
-    """
-    Defined a recurrent transaction category
-
-     Example: food, softs, ...
-     """
-    name = models.CharField(
-        verbose_name=_("name"),
-        max_length=31,
-        unique=True,
-    )
-
-    class Meta:
-        verbose_name = _("transaction type")
-        verbose_name_plural = _("transaction types")
-
-    def __str__(self):
-        return str(self.name)
-
-
-class Transaction(models.Model):
     """
     General transaction between two :model:`note.Note`
 
@@ -128,12 +109,6 @@ class Transaction(models.Model):
         default=1,
     )
     amount = models.PositiveIntegerField(verbose_name=_('amount'), )
-    transaction_type = models.ForeignKey(
-        TransactionType,
-        on_delete=models.PROTECT,
-        verbose_name=_('type'),
-        max_length=31,
-    )
     reason = models.CharField(
         verbose_name=_('reason'),
         max_length=255,

apps/note/views.py

@@ -8,7 +8,7 @@ from django.urls import reverse
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import CreateView, ListView, UpdateView
 
-from .models import Transaction, TransactionTemplate, Alias
+from .models import Transaction, TransactionTemplate, Alias, TemplateTransaction
 from .forms import TransactionForm, TransactionTemplateForm, ConsoForm
 
 
@@ -129,7 +129,7 @@ class ConsoView(LoginRequiredMixin, CreateView):
     """
     Consume
     """
-    model = Transaction
+    model = TemplateTransaction
     template_name = "note/conso_form.html"
     form_class = ConsoForm
 
@@ -152,3 +152,4 @@ class ConsoView(LoginRequiredMixin, CreateView):
         When clicking a button, reload the same page
         """
         return reverse('note:consos')
+