Allow easily switching fake_migrate on to allow easier fixes of the database migrations

gluon/console.py

@@ -266,6 +266,12 @@ web2py will attempt to run a GUI to ask for it when starting the web server
         '(default is %(default)s), see -S above. NOTE: when the APP_ENV '
         'argument of -S include a controller c automatic import of '
         'models is always enabled')
+    g.add_argument('--fake_migrate',
+                   default=False,
+                   action='store_true',
+                   help=
+                   'force DAL to fake migrate all tables; '
+                   'monkeypatch in the DAL class to force _fake_migrate=True')
     g.add_argument('--force_migrate', '--force-migrate',
                    default=False,
                    action='store_true', help=

gluon/shell.py

@@ -217,7 +217,8 @@ def run(
     python_code=None,
     cron_job=False,
     scheduler_job=False,
-    force_migrate=False):
+    force_migrate=False,
+    fake_migrate=False):
     """
     Start interactive shell or run Python script (startfile) in web2py
     controller environment. appname is formatted like:
@@ -255,6 +256,7 @@ def run(
         def custom_init(*args, **kwargs):
             kwargs['migrate_enabled'] = True
             kwargs['migrate'] = True
+            kwargs['fake_migrate'] = fake_migrate
             logger.info('Forcing migrate_enabled=True')
             orig_init(*args, **kwargs)
 

gluon/widget.py

@@ -741,7 +741,8 @@ def start():
         sys.argv = [options.run or ''] + options.args
         run(options.shell, plain=options.plain, bpython=options.bpython,
             import_models=options.import_models, startfile=options.run,
-            cron_job=options.cron_job, force_migrate=options.force_migrate)
+            cron_job=options.cron_job, force_migrate=options.force_migrate,
+            fake_migrate=options.fake_migrate)
         return
 
     # set size of cron thread pools

scripts/migrator.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 '''
 To use, e.g. python .\web2py.py -S APPNAME --force_migrate
+To use, e.g. python .\web2py.py -S APPNAME --force_migrate --fake_migrate
 '''
 
 import logging
@@ -31,5 +32,6 @@ for db_name in databases:
     for table_name in tables:
         # Force migration of lazy tables
         logger.debug("Ensuring migration of table '%s'", table_name)
-        db(db[table_name]).isempty()
+        table = db[table_name]
+        db(table).isempty()
     db.commit()