#175: Override Migrate command

To additionaly run `sync_page_translation_fields`
To silence any missing migrations warnings

setup.py

@@ -24,7 +24,10 @@ setup(
         'wagtail_modeltranslation.templatetags',
         'wagtail_modeltranslation.makemigrations',
         'wagtail_modeltranslation.makemigrations.management',
-        'wagtail_modeltranslation.makemigrations.management.commands'],
+        'wagtail_modeltranslation.makemigrations.management.commands',
+        'wagtail_modeltranslation.migrate',
+        'wagtail_modeltranslation.migrate.management',
+        'wagtail_modeltranslation.migrate.management.commands'],
     package_data={'wagtail_modeltranslation': ['static/wagtail_modeltranslation/css/*.css',
                                                'static/wagtail_modeltranslation/js/*.js']},
     install_requires=['wagtail(>=1.4)', 'django-modeltranslation(>=0.12.2)'],

wagtail_modeltranslation/management/commands/migrate_translation.py

@@ -0,0 +1,33 @@
+from django.core.management.commands.migrate import Command as MigrateCommand
+from django.db.migrations.autodetector import MigrationAutodetector
+from .sync_page_translation_fields import Command as SyncPageTranslationFieldsCommand
+
+
+# decorate MigrationAutodetector.changes so we can silence any wagtailcore migrations missing warnings
+def changes_decorator(func):
+    def wrapper(self, graph, trim_to_apps=None, convert_apps=None, migration_name=None):
+        changes = func(self, graph, trim_to_apps, convert_apps, migration_name)
+        if 'wagtailcore' in changes:
+            del changes['wagtailcore']
+        return changes
+    return wrapper
+
+
+class Command(MigrateCommand):
+    help = "Updates database schema. Manages both apps with migrations and those without. " \
+           "Updates Wagtail Page translation fields"
+
+    def handle(self, *args, **options):
+        old_autodetector_changes = MigrationAutodetector.changes
+        MigrationAutodetector.changes = changes_decorator(MigrationAutodetector.changes)
+
+        try:
+            super(Command, self).handle(*args, **options)
+        finally:
+            MigrationAutodetector.changes = old_autodetector_changes
+
+        # Run sync_page_translation_fields command
+        sync_page_command = SyncPageTranslationFieldsCommand()
+        # Update the dict of sync_page_command with the content of this one
+        sync_page_command.__dict__.update(self.__dict__)
+        sync_page_command.handle(*args, **options)

wagtail_modeltranslation/migrate/__init__.py

@@ -0,0 +1,3 @@
+# coding: utf-8
+
+default_app_config = 'wagtail_modeltranslation.migrate.apps.MigrateConfig'

wagtail_modeltranslation/migrate/apps.py

@@ -0,0 +1,7 @@
+from django.apps import AppConfig
+
+
+class MigrateConfig(AppConfig):
+    name = 'wagtail_modeltranslation.migrate'
+    label = 'wagtail_modeltranslation_migrate'
+    verbose_name = "Wagtail Modeltranslation migrate"

wagtail_modeltranslation/migrate/management/commands/migrate.py

@@ -0,0 +1,5 @@
+from wagtail_modeltranslation.management.commands.migrate_translation import Command as MigrateCommand
+
+
+class Command(MigrateCommand):
+    pass

wagtail_modeltranslation/migrate/management/commands/migrate_original.py

@@ -0,0 +1,5 @@
+from django.core.management.commands.migrate import Command as MigrateCommand
+
+
+class Command(MigrateCommand):
+    pass