| 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 |
| 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')} |
| |
| |
