Fixes EcoAccount availability ordering

* adds db based table ordering for EcoAccountTable

compensation/migrations/0011_ecoaccount_deductable_rest.py

@@ -0,0 +1,36 @@
+# Generated by Django 3.1.3 on 2022-10-11 11:39
+
+from django.db import migrations, models
+from django.db.models import Sum
+
+
+def fill_deductable_rest(apps, schema_editor):
+    EcoAccount = apps.get_model("compensation", "EcoAccount")
+    accs = EcoAccount.objects.all()
+    for acc in accs:
+
+        deductions = acc.deductions.filter(
+            intervention__deleted=None,
+        )
+        deductions_surfaces = deductions.aggregate(Sum("surface"))["surface__sum"] or 0
+        available_surfaces = acc.deductable_surface or deductions_surfaces
+        rest = available_surfaces - deductions_surfaces
+
+        acc.deductable_rest = rest
+        acc.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('compensation', '0010_auto_20220815_1030'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='ecoaccount',
+            name='deductable_rest',
+            field=models.FloatField(blank=True, default=0, help_text='Amount of deductable rest', null=True),
+        ),
+        migrations.RunPython(fill_deductable_rest)
+    ]