[multi-db] Began integrating Manager schema manipulation methods into django.core.management. Updated multiple db models test to include operations on installed models.

git-svn-id: http://code.djangoproject.com/svn/django/branches/multiple-db-support@3267 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/management.py

@@ -561,7 +561,8 @@ diffsettings.args = ""
 
 def install(app):
     "Executes the equivalent of 'get_sql_all' in the current database."
-    from django.db import connection, transaction
+    from django.db import connection, models, transaction
+    import sys
     
     app_name = app.__name__.split('.')[-2]
 
@@ -570,12 +571,13 @@ def install(app):
     # First, try validating the models.
     _check_for_validation_errors(app)
 
-    sql_list = get_sql_all(app)
-
     try:
-        cursor = connection.cursor()
-        for sql in sql_list:
-            cursor.execute(sql)
+        pending = []
+        for model in models.get_models(app):
+            pending.extend(model._default_manager.install(True))
+        if pending:
+            for statement in pending:
+                statement.execute()
     except Exception, e:
         sys.stderr.write(style.ERROR("""Error: %s couldn't be installed. Possible reasons:
   * The database isn't running or isn't configured correctly.

tests/modeltests/multiple_databases/models.py

@@ -93,4 +93,17 @@ False
 >>> Artist._meta.connection.settings == Vehicle._meta.connection.settings
 False
 
+# Managers use their models' connections
+
+>>> a = Artist(name="Paul Klee", alive=False)
+>>> a.save()
+>>> w = Widget(code='100x2r', weight=1000)
+>>> w.save()
+>>> v = Vehicle(make='Chevy', model='Camaro', year='1966')
+>>> v.save()
+>>> artists = Artist.objects.all()
+>>> list(artists)
+[<Artist: Paul Klee>]
+>>> artists[0]._meta.connection.settings == connections['django_test_db_a'].settings
+True
 """