5 files changed, 83 insertions, 4 deletions
diff --git a/archaeological_finds/admin.py b/archaeological_finds/admin.py
index 0e2b31b20..c85ac2425 100644
--- a/archaeological_finds/admin.py
+++ b/archaeological_finds/admin.py
@@ -22,7 +22,7 @@ from ajax_select.fields import AutoCompleteSelectField
 
 from django import forms
 from django.contrib import admin
-from django.contrib.gis.forms import PointField, PolygonField, \
+from django.contrib.gis.forms import PointField, MultiPolygonField, \
     LineStringField, OSMWidget
 from django.utils.translation import ugettext_lazy as _
 
@@ -40,8 +40,8 @@ class AdminBaseFindForm(forms.ModelForm):
                           widget=OSMWidget)
     line = LineStringField(label=_(u"Line"), required=False,
                            widget=OSMWidget)
-    polygon = PolygonField(label=_(u"Polygon"), required=False,
-                           widget=OSMWidget)
+    multi_polygon = MultiPolygonField(label=_(u"Multi polygon"), required=False,
+                                      widget=OSMWidget)
     context_record = AutoCompleteSelectField('context_record')
 
 
diff --git a/archaeological_finds/migrations/0030_auto_20180619_0853.py b/archaeological_finds/migrations/0030_auto_20180619_0853.py
new file mode 100644
index 000000000..3e198a313
--- /dev/null
+++ b/archaeological_finds/migrations/0030_auto_20180619_0853.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.10 on 2018-06-19 08:53
+from __future__ import unicode_literals
+
+import django.contrib.gis.db.models.fields
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('archaeological_finds', '0029_auto_20180601_1555'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='basefind',
+            name='multi_polygon',
+            field=django.contrib.gis.db.models.fields.MultiPolygonField(blank=True, null=True, srid=4326, verbose_name='Multi polygon'),
+        ),
+        migrations.AddField(
+            model_name='historicalbasefind',
+            name='multi_polygon',
+            field=django.contrib.gis.db.models.fields.MultiPolygonField(blank=True, null=True, srid=4326, verbose_name='Multi polygon'),
+        ),
+    ]
diff --git a/archaeological_finds/migrations/0031_polygon_to_multi_polygon.py b/archaeological_finds/migrations/0031_polygon_to_multi_polygon.py
new file mode 100644
index 000000000..85252e9a5
--- /dev/null
+++ b/archaeological_finds/migrations/0031_polygon_to_multi_polygon.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.10 on 2018-06-19 08:55
+from __future__ import unicode_literals
+
+from django.db import migrations
+from django.contrib.gis.geos import MultiPolygon, fromstr
+
+
+def polygon_to_multipolygon(apps, schema):
+    BaseFind = apps.get_model('archaeological_finds', 'basefind')
+    HistoricalBaseFind = apps.get_model(
+        'archaeological_finds', 'historicalbasefind')
+    for bf in BaseFind.objects.filter(polygon__isnull=False).all():
+        bf.multi_polygon = MultiPolygon(fromstr(bf.polygon),)
+        bf.save()
+    for bf in HistoricalBaseFind.objects.filter(polygon__isnull=False).all():
+        bf.multi_polygon = MultiPolygon(fromstr(bf.polygon),)
+        bf.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('archaeological_finds', '0030_auto_20180619_0853'),
+    ]
+
+    operations = [
+        migrations.RunPython(polygon_to_multipolygon)
+    ]
diff --git a/archaeological_finds/migrations/0032_auto_20180619_0911.py b/archaeological_finds/migrations/0032_auto_20180619_0911.py
new file mode 100644
index 000000000..65b104079
--- /dev/null
+++ b/archaeological_finds/migrations/0032_auto_20180619_0911.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.10 on 2018-06-19 09:11
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('archaeological_finds', '0031_polygon_to_multi_polygon'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='basefind',
+            name='polygon',
+        ),
+        migrations.RemoveField(
+            model_name='historicalbasefind',
+            name='polygon',
+        ),
+    ]
diff --git a/archaeological_finds/models_finds.py b/archaeological_finds/models_finds.py
index 90df95530..1ebfb6a15 100644
--- a/archaeological_finds/models_finds.py
+++ b/archaeological_finds/models_finds.py
@@ -272,7 +272,8 @@ class BaseFind(BulkUpdatedItem, BaseHistorizedItem, OwnPerms):
     point_2d = models.PointField(_(u"Point (2D)"), blank=True, null=True)
     point = models.PointField(_(u"Point (3D)"), blank=True, null=True, dim=3)
     line = models.LineStringField(_(u"Line"), blank=True, null=True)
-    polygon = models.PolygonField(_(u"Polygon"), blank=True, null=True)
+    multi_polygon = models.MultiPolygonField(_(u"Multi polygon"), blank=True,
+                                             null=True)
     cache_short_id = models.TextField(
         _(u"Short ID"), blank=True, null=True, db_index=True,
         help_text=_(u"Cached value - do not edit"))