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"""
This is the core database connection.
All Django code assumes database SELECT statements cast the resulting values as such:
* booleans are mapped to Python booleans
* dates are mapped to Python datetime.date objects
* times are mapped to Python datetime.time objects
* timestamps are mapped to Python datetime.datetime objects
"""
from django.conf.settings import DATABASE_ENGINE
try:
dbmod = __import__('django.core.db.backends.%s' % DATABASE_ENGINE, '', '', [''])
except ImportError, exc:
# The database backend wasn't found. Display a helpful error message
# listing all possible database backends.
from django.core.exceptions import ImproperlyConfigured
import os
backend_dir = os.path.join(__path__[0], 'backends')
available_backends = [f[:-3] for f in os.listdir(backend_dir) if f.endswith('.py') and not f.startswith('__init__')]
available_backends.sort()
raise ImproperlyConfigured, "Could not load database backend: %s. Is your DATABASE_ENGINE setting (currently, %r) spelled correctly? Available options are: %s" % \
(exc, DATABASE_ENGINE, ", ".join(map(repr, available_backends)))
DatabaseError = dbmod.DatabaseError
db = dbmod.DatabaseWrapper()
dictfetchone = dbmod.dictfetchone
dictfetchmany = dbmod.dictfetchmany
dictfetchall = dbmod.dictfetchall
dictfetchall = dbmod.dictfetchall
get_last_insert_id = dbmod.get_last_insert_id
get_date_extract_sql = dbmod.get_date_extract_sql
get_date_trunc_sql = dbmod.get_date_trunc_sql
get_limit_offset_sql = dbmod.get_limit_offset_sql
get_random_function_sql = dbmod.get_random_function_sql
get_table_list = dbmod.get_table_list
get_table_description = dbmod.get_table_description
get_relations = dbmod.get_relations
get_indexes = dbmod.get_indexes
OPERATOR_MAPPING = dbmod.OPERATOR_MAPPING
DATA_TYPES = dbmod.DATA_TYPES
DATA_TYPES_REVERSE = dbmod.DATA_TYPES_REVERSE
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