app/django/db/models/sql/constants.py
author Todd Larsen <tlarsen@google.com>
Wed, 21 Jan 2009 00:27:39 +0000
changeset 858 e79e7a22326f
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Add an export() view, and implement it as text/text for Document. For every Model except Document, the public() view is displayed for any attempts to access the export() view. Currently, the permissions for export() are the same as for public(). This seems reasonable for Document, since anyone could extract the raw HTML from the page source anyway. The permissions should probably be different for other types of exports, such as vCard or iCard exports of profiles, CSV exports of lists, etc. Patch by: Todd Larsen 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')}