Remove collection from books

manuels/admin.py

@@ -33,19 +33,19 @@ class LevelAdmin(admin.ModelAdmin):
 class BookResource(resources.ModelResource):
     class Meta:
         model = Book
-        fields = ('title', 'authors', 'editor', 'collection', 'publication_year', 'isbn',
+        fields = ('title', 'authors', 'editor', 'publication_year', 'isbn',
                   'price', 'previously_acquired', 'teacher__first_name', 'teacher__last_name', 'level__name', 'field')
 
 
 @admin.register(Book)
 class BookAdmin(ExportMixin, admin.ModelAdmin):
     resource_class = BookResource
-    list_display = ['title', 'authors', 'editor', 'collection', 'publication_year', 'isbn',
+    list_display = ['title', 'authors', 'editor', 'publication_year', 'isbn',
                     'price', 'previously_acquired', 'teacher', 'level', 'field']
     list_filter = ['editor', 'previously_acquired', 'teacher', 'level']
     fieldsets = [
         ('Infos livre', {
-            'fields': ('title', 'authors', 'editor', 'collection', 'publication_year', 'isbn', 'created_at', 'updated_at')
+            'fields': ('title', 'authors', 'editor', 'publication_year', 'isbn', 'created_at', 'updated_at')
         }),
         ('Élève', {
             'fields': ('price', 'previously_acquired',)

manuels/migrations/0010_remove_book_collection.py

@@ -0,0 +1,17 @@
+# Generated by Django 2.0.5 on 2018-05-23 22:07
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('manuels', '0009_suppliesrequirement_field'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='book',
+            name='collection',
+        ),
+    ]

manuels/models.py

@@ -99,7 +99,6 @@ class Book(BaseModel):
     title = models.TextField('titre')
     authors = models.TextField('auteurs')
     editor = models.ForeignKey(verbose_name='éditeur', to=Editor, on_delete=models.PROTECT, null=True)
-    collection = models.CharField('collection', max_length=200, blank=True)
     publication_year = models.PositiveIntegerField('année de publication')
     isbn = models.CharField('ISBN/EAN', max_length=20, validators=[isbn_validator])
     price = models.PositiveIntegerField('prix')