INET, CIDR, UUID, BIT, MACADDR, OID, DOUBLE_PRECISION, TIMESTAMP, TIME, \
DATE, BYTEA, BOOLEAN, INTERVAL, ENUM, dialect, TSVECTOR, DropEnumType, \
CreateEnumType
-from .constraints import ExcludeConstraint
from .hstore import HSTORE, hstore
from .json import JSON, JSONB
from .array import array, ARRAY, Any, All
-from .ext import aggregate_order_by
+from .ext import aggregate_order_by, ExcludeConstraint
from .ranges import INT4RANGE, INT8RANGE, NUMRANGE, DATERANGE, TSRANGE, \
TSTZRANGE
+++ /dev/null
-# Copyright (C) 2013-2015 the SQLAlchemy authors and contributors
-# <see AUTHORS file>
-#
-# This module is part of SQLAlchemy and is released under
-# the MIT License: http://www.opensource.org/licenses/mit-license.php
-from ...sql.schema import ColumnCollectionConstraint
-from ...sql import expression
-from ... import util
-
-
-class ExcludeConstraint(ColumnCollectionConstraint):
- """A table-level EXCLUDE constraint.
-
- Defines an EXCLUDE constraint as described in the `postgres
- documentation`__.
-
- __ http://www.postgresql.org/docs/9.0/\
-static/sql-createtable.html#SQL-CREATETABLE-EXCLUDE
- """
-
- __visit_name__ = 'exclude_constraint'
-
- where = None
-
- def __init__(self, *elements, **kw):
- """
- :param \*elements:
- A sequence of two tuples of the form ``(column, operator)`` where
- column must be a column name or Column object and operator must
- be a string containing the operator to use.
-
- :param name:
- Optional, the in-database name of this constraint.
-
- :param deferrable:
- Optional bool. If set, emit DEFERRABLE or NOT DEFERRABLE when
- issuing DDL for this constraint.
-
- :param initially:
- Optional string. If set, emit INITIALLY <value> when issuing DDL
- for this constraint.
-
- :param using:
- Optional string. If set, emit USING <index_method> when issuing DDL
- for this constraint. Defaults to 'gist'.
-
- :param where:
- Optional string. If set, emit WHERE <predicate> when issuing DDL
- for this constraint.
-
- """
- columns = []
- render_exprs = []
- self.operators = {}
-
- expressions, operators = zip(*elements)
-
- for (expr, column, strname, add_element), operator in zip(
- self._extract_col_expression_collection(expressions),
- operators
- ):
- if add_element is not None:
- columns.append(add_element)
-
- name = column.name if column is not None else strname
-
- if name is not None:
- # backwards compat
- self.operators[name] = operator
-
- expr = expression._literal_as_text(expr)
-
- render_exprs.append(
- (expr, name, operator)
- )
-
- self._render_exprs = render_exprs
- ColumnCollectionConstraint.__init__(
- self,
- *columns,
- name=kw.get('name'),
- deferrable=kw.get('deferrable'),
- initially=kw.get('initially')
- )
- self.using = kw.get('using', 'gist')
- where = kw.get('where')
- if where:
- self.where = expression._literal_as_text(where)
-
- def copy(self, **kw):
- elements = [(col, self.operators[col])
- for col in self.columns.keys()]
- c = self.__class__(*elements,
- name=self.name,
- deferrable=self.deferrable,
- initially=self.initially)
- c.dispatch._update(self.dispatch)
- return c
from ...sql import expression
from ...sql import elements
+from ...sql.schema import ColumnCollectionConstraint
class aggregate_order_by(expression.ColumnElement):
@property
def _from_objects(self):
return self.target._from_objects + self.order_by._from_objects
+
+
+class ExcludeConstraint(ColumnCollectionConstraint):
+ """A table-level EXCLUDE constraint.
+
+ Defines an EXCLUDE constraint as described in the `postgres
+ documentation`__.
+
+ __ http://www.postgresql.org/docs/9.0/\
+static/sql-createtable.html#SQL-CREATETABLE-EXCLUDE
+ """
+
+ __visit_name__ = 'exclude_constraint'
+
+ where = None
+
+ def __init__(self, *elements, **kw):
+ """
+ :param \*elements:
+ A sequence of two tuples of the form ``(column, operator)`` where
+ column must be a column name or Column object and operator must
+ be a string containing the operator to use.
+
+ :param name:
+ Optional, the in-database name of this constraint.
+
+ :param deferrable:
+ Optional bool. If set, emit DEFERRABLE or NOT DEFERRABLE when
+ issuing DDL for this constraint.
+
+ :param initially:
+ Optional string. If set, emit INITIALLY <value> when issuing DDL
+ for this constraint.
+
+ :param using:
+ Optional string. If set, emit USING <index_method> when issuing DDL
+ for this constraint. Defaults to 'gist'.
+
+ :param where:
+ Optional string. If set, emit WHERE <predicate> when issuing DDL
+ for this constraint.
+
+ """
+ columns = []
+ render_exprs = []
+ self.operators = {}
+
+ expressions, operators = zip(*elements)
+
+ for (expr, column, strname, add_element), operator in zip(
+ self._extract_col_expression_collection(expressions),
+ operators
+ ):
+ if add_element is not None:
+ columns.append(add_element)
+
+ name = column.name if column is not None else strname
+
+ if name is not None:
+ # backwards compat
+ self.operators[name] = operator
+
+ expr = expression._literal_as_text(expr)
+
+ render_exprs.append(
+ (expr, name, operator)
+ )
+
+ self._render_exprs = render_exprs
+ ColumnCollectionConstraint.__init__(
+ self,
+ *columns,
+ name=kw.get('name'),
+ deferrable=kw.get('deferrable'),
+ initially=kw.get('initially')
+ )
+ self.using = kw.get('using', 'gist')
+ where = kw.get('where')
+ if where:
+ self.where = expression._literal_as_text(where)
+
+ def copy(self, **kw):
+ elements = [(col, self.operators[col])
+ for col in self.columns.keys()]
+ c = self.__class__(*elements,
+ name=self.name,
+ deferrable=self.deferrable,
+ initially=self.initially)
+ c.dispatch._update(self.dispatch)
+ return c
projects / thirdparty / sqlalchemy / sqlalchemy.git / commitdiff
