New script for finding database tables with non-ASCII data

 - Legacy-Id: 2150

Author: pasieronen

test/find_non_ascii.py

@@ -0,0 +1,65 @@
+# Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+# All rights reserved. Contact: Pasi Eronen <pasi.eronen@nokia.com>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  * Redistributions in binary form must reproduce the above
+#    copyright notice, this list of conditions and the following
+#    disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#
+#  * Neither the name of the Nokia Corporation and/or its
+#    subsidiary(-ies) nor the names of its contributors may be used
+#    to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from ietf import settings
+from django.core import management
+management.setup_environ(settings)
+
+from django.db.models.fields import CharField, TextField
+from django import db
+from django.db import models
+
+cursor = db.connection.cursor()
+
+def check_non_ascii(model, field):
+    #print "    Checking", field.column
+    sql = "SELECT src.%s,src.%s FROM %s AS src WHERE src.%s RLIKE '[^\\t-~]+'" % (model._meta.pk.column, field.column, model._meta.db_table, field.column)
+    #print sql
+    cursor.execute(sql)
+    rows = cursor.fetchall()
+    if len(rows) > 0:
+        print "    NON-ASCII: %s.%s (%d rows)" % (model._meta.db_table,field.column, len(rows))
+        #for row in rows[0:20]:
+        #    print "   ", row
+        #print "    Use the following SQL to debug:"
+        #print sql
+
+APPS = ['announcements', 'idrfc','idtracker','iesg','ietfauth','ipr','liaisons','proceedings','redirects']
+all_models = []
+for app_label in APPS:
+    all_models.extend(models.get_models(models.get_app(app_label)))
+
+for model in all_models:
+    print "\nChecking %s (table %s)" % (model._meta.object_name, model._meta.db_table)
+    for f in model._meta.fields:
+        if isinstance(f, CharField) or isinstance(f, TextField):
+            check_non_ascii(model,f)