Person and organization deletion (refs #1675)

* add associated actions, wizards, forms
* prevent deletion of associted items (operations, files, etc.)
* give list of associated items before deletion and give access to these
  items

1 files changed, 20 insertions, 9 deletions

diff --git a/archaeological_operations/models.py b/archaeological_operations/models.py
index 7bd84c6e7..97d10801c 100644
--- a/archaeological_operations/models.py
+++ b/archaeological_operations/models.py
@@ -144,11 +144,14 @@ class Operation(BaseHistorizedItem, OwnPerms, ValueGetter):
                                             null=True, blank=True)
     scientist = models.ForeignKey(Person, blank=True, null=True,
                       verbose_name=_(u"In charge scientist"),
+                      on_delete=models.SET_NULL,
                       related_name='operation_scientist_responsability')
     operator = models.ForeignKey(Organization, blank=True, null=True,
-                    verbose_name=_(u"Operator"))
+                    related_name='operator',
+                    verbose_name=_(u"Operator"), on_delete=models.SET_NULL)
     in_charge = models.ForeignKey(Person, blank=True, null=True,
                                   verbose_name=_(u"In charge"),
+                                  on_delete=models.SET_NULL,
                                   related_name='operation_responsability')
     year = models.IntegerField(_(u"Year"), null=True, blank=True)
     operation_code = models.IntegerField(_(u"Operation code"), null=True,
@@ -190,8 +193,10 @@ class Operation(BaseHistorizedItem, OwnPerms, ValueGetter):
         geoarchaeological_context_prescription = models.NullBooleanField(
                             _(u"Prescription on geoarchaeological context"),
                             blank=True, null=True) # preventive diag
-        cira_rapporteur = models.ForeignKey(Person, related_name='+', null=True,
-                                    blank=True, verbose_name=u"Rapporteur CIRA")
+        cira_rapporteur = models.ForeignKey(Person,
+                                    related_name='cira_rapporteur', null=True,
+                                    blank=True, on_delete=models.SET_NULL,
+                                    verbose_name=u"Rapporteur CIRA")
         negative_result = models.NullBooleanField(
                      u"Résultat considéré comme négatif", blank=True, null=True)
         cira_date = models.DateField(u"Date avis CIRA", null=True, blank=True)
@@ -464,15 +469,20 @@ class AdministrativeAct(BaseHistorizedItem, OwnPerms, ValueGetter):
     TABLE_COLS_OPE = ['full_ref', 'act_type', 'operation', 'operation.towns']
     act_type = models.ForeignKey(ActType, verbose_name=_(u"Act type"))
     in_charge = models.ForeignKey(Person, blank=True, null=True,
-        related_name='+', verbose_name=_(u"Person in charge of the operation"))
+        related_name='adminact_operation_in_charge',
+        verbose_name=_(u"Person in charge of the operation"),
+        on_delete=models.SET_NULL,)
     index = models.IntegerField(verbose_name=_(u"Index"), blank=True, null=True)
     operator = models.ForeignKey(Organization, blank=True, null=True,
-                    verbose_name=_(u"Archaeological preventive operator"))
+                    verbose_name=_(u"Archaeological preventive operator"),
+                    related_name='adminact_operator',
+                    on_delete=models.SET_NULL)
     scientist = models.ForeignKey(Person, blank=True, null=True,
-                    related_name='+',
-                    verbose_name=_(u"Scientist in charge"))
+                related_name='adminact_scientist', on_delete=models.SET_NULL,
+                verbose_name=_(u"Scientist in charge"))
     signatory = models.ForeignKey(Person, blank=True, null=True,
-                    related_name='+', verbose_name=_(u"Signatory"))
+                    related_name='signatory', verbose_name=_(u"Signatory"),
+                    on_delete=models.SET_NULL,)
     operation = models.ForeignKey(Operation, blank=True, null=True,
                 related_name='administrative_act', verbose_name=_(u"Operation"))
     if FILES_AVAILABLE:
@@ -649,7 +659,8 @@ def parcel_post_save(sender, **kwargs):
 post_save.connect(parcel_post_save, sender=Parcel)
 
 class ParcelOwner(LightHistorizedItem):
-    owner = models.ForeignKey(Person, verbose_name=_(u"Owner"))
+    owner = models.ForeignKey(Person, verbose_name=_(u"Owner"),
+                              related_name="parcel_owner")
     parcel = models.ForeignKey(Parcel, verbose_name=_(u"Parcel"))
     start_date = models.DateField(_(u"Start date"))
     end_date = models.DateField(_(u"End date"))