Performance: add a cached label to improve display on main page

2 files changed, 438 insertions, 2 deletions

diff --git a/archaeological_operations/migrations/0009_auto__add_field_historicaloperation_cached_label__add_field_operation_.py b/archaeological_operations/migrations/0009_auto__add_field_historicaloperation_cached_label__add_field_operation_.py
new file mode 100644
index 000000000..2a789c5de
--- /dev/null
+++ b/archaeological_operations/migrations/0009_auto__add_field_historicaloperation_cached_label__add_field_operation_.py
@@ -0,0 +1,421 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding field 'HistoricalOperation.cached_label'
+        db.add_column('archaeological_operations_historicaloperation', 'cached_label',
+                      self.gf('django.db.models.fields.CharField')(max_length=100, null=True, blank=True),
+                      keep_default=False)
+
+        # Adding field 'Operation.cached_label'
+        db.add_column('archaeological_operations_operation', 'cached_label',
+                      self.gf('django.db.models.fields.CharField')(max_length=100, null=True, blank=True),
+                      keep_default=False)
+
+
+    def backwards(self, orm):
+        # Deleting field 'HistoricalOperation.cached_label'
+        db.delete_column('archaeological_operations_historicaloperation', 'cached_label')
+
+        # Deleting field 'Operation.cached_label'
+        db.delete_column('archaeological_operations_operation', 'cached_label')
+
+
+    models = {
+        'archaeological_files.file': {
+            'Meta': {'ordering': "['-year', '-numeric_reference']", 'object_name': 'File'},
+            'address': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'address_complement': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'creation_date': ('django.db.models.fields.DateField', [], {'default': 'datetime.date.today'}),
+            'end_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'file_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_files.FileType']"}),
+            'general_contractor': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'in_charge': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'internal_reference': ('django.db.models.fields.CharField', [], {'max_length': '60', 'unique': 'True', 'null': 'True', 'blank': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
+            'numeric_reference': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'permit_reference': ('django.db.models.fields.CharField', [], {'max_length': '60', 'null': 'True', 'blank': 'True'}),
+            'permit_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_files.PermitType']", 'null': 'True', 'blank': 'True'}),
+            'postal_code': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'reception_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'reference_number': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'related_file': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_files.File']", 'null': 'True', 'blank': 'True'}),
+            'saisine_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_files.SaisineType']", 'null': 'True', 'blank': 'True'}),
+            'total_developed_surface': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'total_surface': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'town_planning_service': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Organization']"}),
+            'towns': ('django.db.models.fields.related.ManyToManyField', [], {'related_name': "'file'", 'symmetrical': 'False', 'to': "orm['ishtar_common.Town']"}),
+            'year': ('django.db.models.fields.IntegerField', [], {'default': '2013'})
+        },
+        'archaeological_files.filetype': {
+            'Meta': {'object_name': 'FileType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'archaeological_files.permittype': {
+            'Meta': {'object_name': 'PermitType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'archaeological_files.saisinetype': {
+            'Meta': {'object_name': 'SaisineType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'delay': ('django.db.models.fields.IntegerField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'archaeological_operations.acttype': {
+            'Meta': {'object_name': 'ActType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'intented_to': ('django.db.models.fields.CharField', [], {'max_length': '1'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'archaeological_operations.administrativeact': {
+            'Meta': {'object_name': 'AdministrativeAct'},
+            'act_object': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
+            'act_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_operations.ActType']"}),
+            'associated_file': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'administrative_act'", 'null': 'True', 'to': "orm['archaeological_files.File']"}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'in_charge': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'operation': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'administrative_act'", 'null': 'True', 'to': "orm['archaeological_operations.Operation']"}),
+            'operator': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Organization']", 'null': 'True', 'blank': 'True'}),
+            'ref_sra': ('django.db.models.fields.CharField', [], {'max_length': '15', 'null': 'True', 'blank': 'True'}),
+            'scientific': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'signatory': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'signature_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'archaeological_operations.historicaladministrativeact': {
+            'Meta': {'ordering': "('-history_date', '-history_id')", 'object_name': 'HistoricalAdministrativeAct'},
+            'act_object': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
+            'act_type_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'associated_file_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'history_date': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'history_id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'history_modifier_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'history_type': ('django.db.models.fields.CharField', [], {'max_length': '1'}),
+            'history_user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']", 'null': 'True'}),
+            'id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'blank': 'True'}),
+            'in_charge_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'operation_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'operator_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'ref_sra': ('django.db.models.fields.CharField', [], {'max_length': '15', 'null': 'True', 'blank': 'True'}),
+            'scientific_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'signatory_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'signature_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'archaeological_operations.historicaloperation': {
+            'Meta': {'ordering': "('-history_date', '-history_id')", 'object_name': 'HistoricalOperation'},
+            'associated_file_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'cached_label': ('django.db.models.fields.CharField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
+            'cira_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'cira_rapporteur_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'code_dracar': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'code_patriarche': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'common_name': ('django.db.models.fields.CharField', [], {'max_length': '120', 'null': 'True', 'blank': 'True'}),
+            'cost': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'eas_number': ('django.db.models.fields.CharField', [], {'max_length': '20', 'null': 'True', 'blank': 'True'}),
+            'effective_man_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'end_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'excavation_end_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'fnap_cost': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'fnap_financing': ('django.db.models.fields.FloatField', [], {'null': 'True', 'blank': 'True'}),
+            'geoarchaeological_context_prescription': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
+            'history_date': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'history_id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'history_modifier_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'history_type': ('django.db.models.fields.CharField', [], {'max_length': '1'}),
+            'history_user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']", 'null': 'True'}),
+            'id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'blank': 'True'}),
+            'in_charge_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'large_area_prescription': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
+            'negative_result': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
+            'operation_code': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'operation_type_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True', 'null': 'True', 'blank': 'True'}),
+            'operator_reference': ('django.db.models.fields.CharField', [], {'max_length': '20', 'null': 'True', 'blank': 'True'}),
+            'optional_man_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'scheduled_man_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'start_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'surface': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'year': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'zoning_prescription': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'archaeological_operations.operation': {
+            'Meta': {'object_name': 'Operation'},
+            'associated_file': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'operations'", 'null': 'True', 'to': "orm['archaeological_files.File']"}),
+            'cached_label': ('django.db.models.fields.CharField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
+            'cira_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'cira_rapporteur': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'code_dracar': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'code_patriarche': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'common_name': ('django.db.models.fields.CharField', [], {'max_length': '120', 'null': 'True', 'blank': 'True'}),
+            'cost': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'eas_number': ('django.db.models.fields.CharField', [], {'max_length': '20', 'null': 'True', 'blank': 'True'}),
+            'effective_man_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'end_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'excavation_end_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'fnap_cost': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'fnap_financing': ('django.db.models.fields.FloatField', [], {'null': 'True', 'blank': 'True'}),
+            'geoarchaeological_context_prescription': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'in_charge': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'+'", 'null': 'True', 'to': "orm['ishtar_common.Person']"}),
+            'large_area_prescription': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
+            'negative_result': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
+            'operation_code': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'operation_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['archaeological_operations.OperationType']"}),
+            'operator_reference': ('django.db.models.fields.CharField', [], {'max_length': '20', 'null': 'True', 'blank': 'True'}),
+            'optional_man_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'periods': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['archaeological_operations.Period']", 'symmetrical': 'False'}),
+            'remains': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['archaeological_operations.RemainType']", 'symmetrical': 'False'}),
+            'scheduled_man_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'start_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'surface': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'towns': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['ishtar_common.Town']", 'symmetrical': 'False'}),
+            'year': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'zoning_prescription': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'archaeological_operations.operationbydepartment': {
+            'Meta': {'object_name': 'OperationByDepartment', 'db_table': "'operation_department'", 'managed': 'False'},
+            'department': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Department']", 'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'operation': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_operations.Operation']"})
+        },
+        'archaeological_operations.operationsource': {
+            'Meta': {'object_name': 'OperationSource'},
+            'associated_url': ('django.db.models.fields.URLField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
+            'authors': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['ishtar_common.Author']", 'symmetrical': 'False'}),
+            'creation_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'index': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'internal_reference': ('django.db.models.fields.CharField', [], {'max_length': '25', 'null': 'True', 'blank': 'True'}),
+            'operation': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'source'", 'to': "orm['archaeological_operations.Operation']"}),
+            'receipt_date': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
+            'reference': ('django.db.models.fields.CharField', [], {'max_length': '25', 'null': 'True', 'blank': 'True'}),
+            'source_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.SourceType']"}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '300'})
+        },
+        'archaeological_operations.operationtype': {
+            'Meta': {'ordering': "['label']", 'object_name': 'OperationType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'preventive': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'archaeological_operations.parcel': {
+            'Meta': {'object_name': 'Parcel'},
+            'associated_file': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'parcels'", 'null': 'True', 'to': "orm['archaeological_files.File']"}),
+            'history_date': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'operation': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'parcels'", 'null': 'True', 'to': "orm['archaeological_operations.Operation']"}),
+            'parcel_number': ('django.db.models.fields.CharField', [], {'max_length': '6'}),
+            'section': ('django.db.models.fields.CharField', [], {'max_length': '4'}),
+            'town': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'parcels'", 'to': "orm['ishtar_common.Town']"}),
+            'year': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'archaeological_operations.parcelowner': {
+            'Meta': {'object_name': 'ParcelOwner'},
+            'end_date': ('django.db.models.fields.DateField', [], {}),
+            'history_date': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'owner': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Person']"}),
+            'parcel': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_operations.Parcel']"}),
+            'start_date': ('django.db.models.fields.DateField', [], {})
+        },
+        'archaeological_operations.period': {
+            'Meta': {'object_name': 'Period'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'end_date': ('django.db.models.fields.IntegerField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'order': ('django.db.models.fields.IntegerField', [], {}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['archaeological_operations.Period']", 'null': 'True', 'blank': 'True'}),
+            'start_date': ('django.db.models.fields.IntegerField', [], {}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'archaeological_operations.remaintype': {
+            'Meta': {'object_name': 'RemainType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'ishtar_common.arrondissement': {
+            'Meta': {'object_name': 'Arrondissement'},
+            'department': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Department']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '30'})
+        },
+        'ishtar_common.author': {
+            'Meta': {'object_name': 'Author'},
+            'author_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.AuthorType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'person': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Person']"})
+        },
+        'ishtar_common.authortype': {
+            'Meta': {'object_name': 'AuthorType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'ishtar_common.canton': {
+            'Meta': {'object_name': 'Canton'},
+            'arrondissement': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Arrondissement']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '30'})
+        },
+        'ishtar_common.department': {
+            'Meta': {'ordering': "['number']", 'object_name': 'Department'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '30'}),
+            'number': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '3'})
+        },
+        'ishtar_common.organization': {
+            'Meta': {'object_name': 'Organization'},
+            'address': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'address_complement': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'country': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True', 'blank': 'True'}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'mobile_phone': ('django.db.models.fields.CharField', [], {'max_length': '18', 'null': 'True', 'blank': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'organization_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.OrganizationType']"}),
+            'phone': ('django.db.models.fields.CharField', [], {'max_length': '18', 'null': 'True', 'blank': 'True'}),
+            'postal_code': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'town': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True', 'blank': 'True'})
+        },
+        'ishtar_common.organizationtype': {
+            'Meta': {'object_name': 'OrganizationType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'ishtar_common.person': {
+            'Meta': {'object_name': 'Person'},
+            'address': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'address_complement': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'attached_to': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Organization']", 'null': 'True', 'blank': 'True'}),
+            'country': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True', 'blank': 'True'}),
+            'email': ('django.db.models.fields.CharField', [], {'max_length': '40', 'null': 'True', 'blank': 'True'}),
+            'history_modifier': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'+'", 'to': "orm['auth.User']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'mobile_phone': ('django.db.models.fields.CharField', [], {'max_length': '18', 'null': 'True', 'blank': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '30'}),
+            'person_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.PersonType']"}),
+            'phone': ('django.db.models.fields.CharField', [], {'max_length': '18', 'null': 'True', 'blank': 'True'}),
+            'postal_code': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'surname': ('django.db.models.fields.CharField', [], {'max_length': '20', 'null': 'True', 'blank': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '2'}),
+            'town': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True', 'blank': 'True'})
+        },
+        'ishtar_common.persontype': {
+            'Meta': {'object_name': 'PersonType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'rights': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['ishtar_common.WizardStep']", 'symmetrical': 'False'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'ishtar_common.sourcetype': {
+            'Meta': {'object_name': 'SourceType'},
+            'available': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'txt_idx': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'ishtar_common.town': {
+            'Meta': {'ordering': "['numero_insee']", 'object_name': 'Town'},
+            'canton': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Canton']", 'null': 'True', 'blank': 'True'}),
+            'center': ('django.contrib.gis.db.models.fields.PointField', [], {'srid': '27572', 'null': 'True', 'blank': 'True'}),
+            'departement': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Department']", 'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'numero_insee': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '6'}),
+            'surface': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'ishtar_common.wizard': {
+            'Meta': {'ordering': "['url_name']", 'object_name': 'Wizard'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'url_name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'})
+        },
+        'ishtar_common.wizardstep': {
+            'Meta': {'ordering': "['wizard', 'order']", 'object_name': 'WizardStep'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'order': ('django.db.models.fields.IntegerField', [], {}),
+            'url_name': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'wizard': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['ishtar_common.Wizard']"})
+        }
+    }
+
+    complete_apps = ['archaeological_operations']
\ No newline at end of file
diff --git a/archaeological_operations/models.py b/archaeological_operations/models.py
index 36781249f..e985400be 100644
--- a/archaeological_operations/models.py
+++ b/archaeological_operations/models.py
@@ -23,7 +23,7 @@ from itertools import groupby
 from django.conf import settings
 from django.contrib.gis.db import models
 from django.db.models import Q, Count, Sum, Max, Avg
-from django.db.models.signals import post_save
+from django.db.models.signals import post_save, m2m_changed
 from django.utils.translation import ugettext_lazy as _, ugettext
 
 from ishtar_common.models import GeneralType, BaseHistorizedItem, \
@@ -125,6 +125,8 @@ class Operation(BaseHistorizedItem, OwnPerms):
     common_name = models.CharField(_(u"Generic name"), max_length=120,
                                    null=True, blank=True)
     comment = models.TextField(_(u"Comment"), null=True, blank=True)
+    cached_label = models.CharField(_(u"Cached name"), max_length=100,
+                                   null=True, blank=True)
     history = HistoricalRecords()
 
     class Meta:
@@ -139,13 +141,20 @@ class Operation(BaseHistorizedItem, OwnPerms):
         )
 
     def __unicode__(self):
+        if self.cached_label:
+            return self.cached_label
+        return self._generate_cached_label()
+
+    def _generate_cached_label(self):
         items = [unicode(_('Intercommunal'))]
         if self.towns.count() == 1:
             items[0] = unicode(self.towns.all()[0])
         if self.operation_code:
             items.append("-".join((unicode(self.year),
                                unicode(self.operation_code))))
-        return settings.JOINT.join(items)
+        self.cached_label = settings.JOINT.join(items)
+        self.save()
+        return self.cached_label
 
     def grouped_parcels(self):
         return Parcel.grouped_parcels(list(self.parcels.all()))
@@ -226,6 +235,12 @@ class Operation(BaseHistorizedItem, OwnPerms):
         return {'date':item.history_date,
                 'user':IshtarUser.objects.get(pk=item.history_modifier_id)}
 
+def associated_towns_changed(sender, **kwargs):
+    if not kwargs.get('instance'):
+        return
+    kwargs.get('instance')._generate_cached_label()
+m2m_changed.connect(associated_towns_changed, sender=Operation.towns.through)
+
 def operation_post_save(sender, **kwargs):
     if not kwargs['instance']:
         return