Created
November 14, 2011 16:12
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Install DB views
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import os | |
import sys | |
from django.conf import settings | |
from django.db import connections, models, transaction, DEFAULT_DB_ALIAS | |
from django.db.models.signals import post_syncdb | |
from django.dispatch import receiver | |
from south.signals import post_migrate | |
@receiver(post_syncdb) | |
@receiver(post_migrate) | |
def install_view_sql(sender, *args, **kwargs): | |
"""Generic signal handler for installing view sql.""" | |
# post_syncdb and post_migrate both use the app keyword but | |
# post_syncdb returns the app module and | |
# post_migrate a string of the app name | |
db = DEFAULT_DB_ALIAS | |
connection = connections[db] | |
cursor = connection.cursor() | |
app = kwargs.pop('app') | |
if not hasattr(app, '__file__'): | |
app = models.get_app(app) | |
app_dir = os.path.dirname(app.__file__) | |
sql_dir = os.path.normpath(os.path.join(app_dir, 'sql', 'views')) | |
if os.path.exists(sql_dir): | |
for view_sql in os.listdir(sql_dir): | |
with open(os.path.join(sql_dir, view_sql), 'U') as f: | |
sql = f.read().decode(settings.FILE_CHARSET) | |
try: | |
cursor.execute(sql) | |
except Exception as e: | |
sys.stderr.write("Failed to install view SQL %s: %s\n" % (view_sql, e)) | |
transaction.rollback_unless_managed(using=db) | |
else: | |
transaction.commit_unless_managed(using=db) |
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