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authorMike Bayer <mike_mp@zzzcomputing.com>2006-03-31 07:20:13 +0000
committerMike Bayer <mike_mp@zzzcomputing.com>2006-03-31 07:20:13 +0000
commitd929ae8d90174a270ee708279ff9c831f9d3193e (patch)
treedd8f931a75b031793e17c4a0817af2520573ca26 /lib/sqlalchemy/mapping/util.py
parent90ffb177ed88cac43d4c3cbdc568d0d0a93fd579 (diff)
downloadsqlalchemy-d929ae8d90174a270ee708279ff9c831f9d3193e.tar.gz
introducing...the mods package ! the SelectResults thing moves as the first mod
Diffstat (limited to 'lib/sqlalchemy/mapping/util.py')
-rw-r--r--lib/sqlalchemy/mapping/util.py70
1 files changed, 0 insertions, 70 deletions
diff --git a/lib/sqlalchemy/mapping/util.py b/lib/sqlalchemy/mapping/util.py
index 8e780eeef..18e2ac053 100644
--- a/lib/sqlalchemy/mapping/util.py
+++ b/lib/sqlalchemy/mapping/util.py
@@ -1,75 +1,5 @@
import sqlalchemy.sql as sql
-class SelectResults(object):
- def __init__(self, mapper, clause=None, ops={}):
- self._mapper = mapper
- self._clause = clause
- self._ops = {}
- self._ops.update(ops)
-
- def count(self):
- return self._mapper.count(self._clause)
-
- def min(self, col):
- return sql.select([sql.func.min(col)], self._clause, **self._ops).scalar()
-
- def max(self, col):
- return sql.select([sql.func.max(col)], self._clause, **self._ops).scalar()
-
- def sum(self, col):
- return sql.select([sql.func.sum(col)], self._clause, **self._ops).scalar()
-
- def avg(self, col):
- return sql.select([sql.func.avg(col)], self._clause, **self._ops).scalar()
-
- def clone(self):
- return SelectResults(self._mapper, self._clause, self._ops.copy())
-
- def filter(self, clause):
- new = self.clone()
- new._clause = sql.and_(self._clause, clause)
- return new
-
- def order_by(self, order_by):
- new = self.clone()
- new._ops['order_by'] = order_by
- return new
-
- def limit(self, limit):
- return self[:limit]
-
- def offset(self, offset):
- return self[offset:]
-
- def list(self):
- return list(self)
-
- def __getitem__(self, item):
- if isinstance(item, slice):
- start = item.start
- stop = item.stop
- if (isinstance(start, int) and start < 0) or \
- (isinstance(stop, int) and stop < 0):
- return list(self)[item]
- else:
- res = self.clone()
- if start is not None and stop is not None:
- res._ops.update(dict(offset=start, limit=stop-start))
- elif start is None and stop is not None:
- res._ops.update(dict(limit=stop))
- elif start is not None and stop is None:
- res._ops.update(dict(offset=start))
- if item.step is not None:
- return list(res)[None:None:item.step]
- else:
- return res
- else:
- return list(self[item:item+1])[0]
-
- def __iter__(self):
- return iter(self._mapper.select_whereclause(self._clause, **self._ops))
-
-
class TableFinder(sql.ClauseVisitor):
"""given a Clause, locates all the Tables within it into a list."""
def __init__(self, table, check_columns=False):