Fixed #5218: Made Oracle create autoinc triggers using the correct name

of the AutoField column rather than always assume "ID".


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6195 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/management/sql.py

@@ -302,7 +302,8 @@ def sql_model_create(model, style, known_models=set()):
 
     if opts.has_auto_field:
         # Add any extra SQL needed to support auto-incrementing primary keys.
-        autoinc_sql = connection.ops.autoinc_sql(opts.db_table)
+        auto_column = opts.auto_field.db_column or opts.auto_field.name
+        autoinc_sql = connection.ops.autoinc_sql(opts.db_table, auto_column)
         if autoinc_sql:
             for stmt in autoinc_sql:
                 final_output.append(stmt)
@@ -385,7 +386,7 @@ def many_to_many_sql_for_model(model, style):
             final_output.append('\n'.join(table_output))
 
             # Add any extra SQL needed to support auto-incrementing PKs
-            autoinc_sql = connection.ops.autoinc_sql(f.m2m_db_table())
+            autoinc_sql = connection.ops.autoinc_sql(f.m2m_db_table(), 'id')
             if autoinc_sql:
                 for stmt in autoinc_sql:
                     final_output.append(stmt)

django/db/backends/__init__.py

@@ -56,7 +56,7 @@ class BaseDatabaseOperations(object):
     a backend performs ordering or calculates the ID of a recently-inserted
     row.
     """
-    def autoinc_sql(self, table):
+    def autoinc_sql(self, table, column):
         """
         Returns any SQL needed to support auto-incrementing primary keys, or
         None if no SQL is necessary.

django/db/backends/oracle/base.py

@@ -31,20 +31,23 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     uses_custom_queryset = True
 
 class DatabaseOperations(BaseDatabaseOperations):
-    def autoinc_sql(self, table):
+    def autoinc_sql(self, table, column):
         # To simulate auto-incrementing primary keys in Oracle, we have to
         # create a sequence and a trigger.
         sq_name = get_sequence_name(table)
         tr_name = get_trigger_name(table)
+        tbl_name = self.quote_name(table)
+        col_name = self.quote_name(column)
         sequence_sql = 'CREATE SEQUENCE %s;' % sq_name
         trigger_sql = """
-            CREATE OR REPLACE TRIGGER %s
-            BEFORE INSERT ON %s
+            CREATE OR REPLACE TRIGGER %(tr_name)s
+            BEFORE INSERT ON %(tbl_name)s
             FOR EACH ROW
-            WHEN (new.id IS NULL)
+            WHEN (new.%(col_name)s IS NULL)
                 BEGIN
-                    SELECT %s.nextval INTO :new.id FROM dual;
-                END;/""" % (tr_name, self.quote_name(table), sq_name)
+                    SELECT %(sq_name)s.nextval
+                    INTO :new.%(col_name)s FROM dual;
+                END;/""" % locals()
         return sequence_sql, trigger_sql
 
     def date_extract_sql(self, lookup_type, field_name):

django/db/models/fields/__init__.py

@@ -433,6 +433,7 @@ class AutoField(Field):
         assert not cls._meta.has_auto_field, "A model can't have more than one AutoField."
         super(AutoField, self).contribute_to_class(cls, name)
         cls._meta.has_auto_field = True
+        cls._meta.auto_field = self
 
     def formfield(self, **kwargs):
         return None

django/db/models/options.py

@@ -33,7 +33,7 @@ class Options(object):
         self.admin = None
         self.meta = meta
         self.pk = None
-        self.has_auto_field = False
+        self.has_auto_field, self.auto_field = False, None
         self.one_to_one_field = None
         self.parents = []
 

tests/regressiontests/model_regress/models.py

@@ -20,6 +20,11 @@ class Article(models.Model):
     def __unicode__(self):
         return self.headline
 
+class Movie(models.Model):
+    #5218: Test models with non-default primary keys / AutoFields
+    movie_id = models.AutoField(primary_key=True)
+    name = models.CharField(max_length=60)
+
 __test__ = {'API_TESTS': """
 (NOTE: Part of the regression test here is merely parsing the model
 declaration. The verbose_name, in particular, did not always work.)