app/django/db/models/sql/constants.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Thu, 16 Oct 2008 15:22:41 +0000
changeset 358 843d83b87282
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Add page=None parameter to all views. Information from page argument (which is soc.logic.site.page.Page object) is going to be used later in views code and for some context values. Fix some indentions in __doc__ strings. Add proper __doc__ string for all() function in sponsor/list.py module. Patch by: Pawel Solyga Review by: to-be-reviewed

import re

# Valid query types (a dictionary is used for speedy lookups).
QUERY_TERMS = dict([(x, None) for x in (
    'exact', 'iexact', 'contains', 'icontains', 'gt', 'gte', 'lt', 'lte', 'in',
    'startswith', 'istartswith', 'endswith', 'iendswith', 'range', 'year',
    'month', 'day', 'isnull', 'search', 'regex', 'iregex',
    )])

# Size of each "chunk" for get_iterator calls.
# Larger values are slightly faster at the expense of more storage space.
GET_ITERATOR_CHUNK_SIZE = 100

# Separator used to split filter strings apart.
LOOKUP_SEP = '__'

# Constants to make looking up tuple values clearer.
# Join lists (indexes into the tuples that are values in the alias_map
# dictionary in the Query class).
TABLE_NAME = 0
RHS_ALIAS = 1
JOIN_TYPE = 2
LHS_ALIAS = 3
LHS_JOIN_COL = 4
RHS_JOIN_COL = 5
NULLABLE = 6

# How many results to expect from a cursor.execute call
MULTI = 'multi'
SINGLE = 'single'

ORDER_PATTERN = re.compile(r'\?|[-+]?[.\w]+$')
ORDER_DIR = {
    'ASC': ('ASC', 'DESC'),
    'DESC': ('DESC', 'ASC')}