Removed BaseCommand.requires_model_validation per deprecation timeline.

django/core/management/base.py

@@ -191,18 +191,6 @@ class BaseCommand(object):
         is the list of application's configuration provided by the
         app registry.
 
-    ``requires_model_validation``
-        DEPRECATED - This value will only be used if requires_system_checks
-        has not been provided. Defining both ``requires_system_checks`` and
-        ``requires_model_validation`` will result in an error.
-
-        A boolean; if ``True``, validation of installed models will be
-        performed prior to executing the command. Default value is
-        ``True``. To validate an individual application's models
-        rather than all applications' models, call
-        ``self.validate(app_config)`` from ``handle()``, where ``app_config``
-        is the application's configuration provided by the app registry.
-
     ``leave_locale_alone``
         A boolean indicating whether the locale set in settings should be
         preserved during the execution of the command instead of translations
@@ -230,11 +218,7 @@ class BaseCommand(object):
     can_import_settings = True
     output_transaction = False  # Whether to wrap the output in a "BEGIN; COMMIT;"
     leave_locale_alone = False
-
-    # Uncomment the following line of code after deprecation plan for
-    # requires_model_validation comes to completion:
-    #
-    # requires_system_checks = True
+    requires_system_checks = True
 
     def __init__(self, stdout=None, stderr=None, no_color=False):
         self.stdout = OutputWrapper(stdout or sys.stdout)
@@ -245,29 +229,6 @@ class BaseCommand(object):
             self.style = color_style()
             self.stderr.style_func = self.style.ERROR
 
-        # `requires_model_validation` is deprecated in favor of
-        # `requires_system_checks`. If both options are present, an error is
-        # raised. Otherwise the present option is used. If none of them is
-        # defined, the default value (True) is used.
-        has_old_option = hasattr(self, 'requires_model_validation')
-        has_new_option = hasattr(self, 'requires_system_checks')
-
-        if has_old_option:
-            warnings.warn(
-                '"requires_model_validation" is deprecated '
-                'in favor of "requires_system_checks".',
-                RemovedInDjango19Warning)
-        if has_old_option and has_new_option:
-            raise ImproperlyConfigured(
-                'Command %s defines both "requires_model_validation" '
-                'and "requires_system_checks", which is illegal. Use only '
-                '"requires_system_checks".' % self.__class__.__name__)
-
-        self.requires_system_checks = (
-            self.requires_system_checks if has_new_option else
-            self.requires_model_validation if has_old_option else
-            True)
-
     @property
     def use_argparse(self):
         return not bool(self.option_list)
@@ -404,8 +365,8 @@ class BaseCommand(object):
     def execute(self, *args, **options):
         """
         Try to execute this command, performing system checks if needed (as
-        controlled by attributes ``self.requires_system_checks`` and
-        ``self.requires_model_validation``, except if force-skipped).
+        controlled by the ``requires_system_checks`` attribute, except if
+        force-skipped).
         """
         if options.get('no_color'):
             self.style = no_style()

docs/howto/custom-management-commands.txt

@@ -282,23 +282,7 @@ All attributes can be set in your derived class and can be used in
 .. versionadded:: 1.7
 
   A boolean; if ``True``, the entire Django project will be checked for
-  potential problems prior to executing the command. If
-  ``requires_system_checks`` is missing, the value of
-  ``requires_model_validation`` is used. If the latter flag is missing
-  as well, the default value (``True``) is used. Defining both
-  ``requires_system_checks`` and ``requires_model_validation`` will result
-  in an error.
-
-.. attribute:: BaseCommand.requires_model_validation
-
-.. deprecated:: 1.7
-    Replaced by ``requires_system_checks``
-
-  A boolean; if ``True``, validation of installed models will be
-  performed prior to executing the command. Default value is
-  ``True``. To validate an individual application's models
-  rather than all applications' models, call
-  :meth:`~BaseCommand.validate` from :meth:`~BaseCommand.handle`.
+  potential problems prior to executing the command. Default value is ``True``.
 
 .. attribute:: BaseCommand.leave_locale_alone
 

tests/admin_scripts/management/commands/validation_command.py

@@ -1,11 +0,0 @@
-from django.core.management.base import BaseCommand
-
-
-class InvalidCommand(BaseCommand):
-    help = ("Test raising an error if both requires_system_checks "
-            "and requires_model_validation are defined.")
-    requires_system_checks = True
-    requires_model_validation = True
-
-    def handle(self, **options):
-        pass

tests/admin_scripts/tests.py

@@ -1662,11 +1662,6 @@ class CommandTypes(AdminScriptTestCase):
         self.assertOutput(out, "EXECUTE:LabelCommand label=testlabel, options=[('no_color', False), ('pythonpath', None), ('settings', None), ('traceback', False), ('verbosity', 1)]")
         self.assertOutput(out, "EXECUTE:LabelCommand label=anotherlabel, options=[('no_color', False), ('pythonpath', None), ('settings', None), ('traceback', False), ('verbosity', 1)]")
 
-    @ignore_warnings(category=RemovedInDjango19Warning)
-    def test_requires_model_validation_and_requires_system_checks_both_defined(self):
-        from .management.commands.validation_command import InvalidCommand
-        self.assertRaises(ImproperlyConfigured, InvalidCommand)
-
 
 class Discovery(TestCase):