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python-sql 0.4-2
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Metadata-Version: 1.1
Name: python-sql
Version: 0.4
Summary: Library to write SQL queries
Home-page: http://code.google.com/p/python-sql/
Author: B2CK
Author-email: info@b2ck.com
License: BSD
Description: python-sql
        ==========
        
        python-sql is a library to write SQL queries in a pythonic way.
        
        Nutshell
        --------
        
        Import::
        
            >>> from sql import *
            >>> from sql.aggregate import *
            >>> from sql.conditionals import *
        
        Simple selects::
        
            >>> user = Table('user')
            >>> select = user.select()
            >>> tuple(select)
            ('SELECT * FROM "user" AS "a"', ())
        
            >>> select = user.select(user.name)
            >>> tuple(select)
            ('SELECT "a"."name" FROM "user" AS "a"', ())
        
            >>> select = user.select(Count(Literal(1)))
            >>> tuple(select)
            ('SELECT COUNT(%s) FROM "user" AS "a"', (1,))
        
            >>> select = user.select(user.id, user.name)
            >>> tuple(select)
            ('SELECT "a"."id", "a"."name" FROM "user" AS "a"', ())
        
        Select with where condition::
        
            >>> select.where = user.name == 'foo'
            >>> tuple(select)
            ('SELECT "a"."id", "a"."name" FROM "user" AS "a" WHERE ("a"."name" = %s)', ('foo',))
        
            >>> select.where = (user.name == 'foo') & (user.active == True)
            >>> tuple(select)
            ('SELECT "a"."id", "a"."name" FROM "user" AS "a" WHERE (("a"."name" = %s) AND ("a"."active" = %s))', ('foo', True))
            >>> select.where = user.name == user.login
            >>> tuple(select)
            ('SELECT "a"."id", "a"."name" FROM "user" AS "a" WHERE ("a"."name" = "a"."login")', ())
        
        Select with join::
        
            >>> join = user.join(Table('user_group'))
            >>> join.condition = join.right.user == user.id
            >>> select = join.select(user.name, join.right.group)
            >>> tuple(select)
            ('SELECT "a"."name", "b"."group" FROM "user" AS "a" INNER JOIN "user_group" AS "b" ON ("b"."user" = "a"."id")', ())
        
        Select with multiple joins::
        
            >>> join1 = user.join(Table('user'))
            >>> join2 = join1.join(Table('user'))
            >>> select = join2.select(user.id, join1.right.id, join2.right.id)
            >>> tuple(select)
            ('SELECT "a"."id", "b"."id", "c"."id" FROM "user" AS "a" INNER JOIN "user" AS "b" INNER JOIN "user" AS "c"', ())
        
        Select with group_by::
        
            >>> invoice = Table('invoice')
            >>> select = invoice.select(Sum(invoice.amount), invoice.currency,
            ...         group_by=invoice.currency)
            >>> tuple(select)
            ('SELECT SUM("a"."amount"), "a"."currency" FROM "invoice" AS "a" GROUP BY "a"."currency"', ())
        
        Select with output name::
        
            >>> tuple(user.select(user.name.as_('First Name')))
            ('SELECT "a"."name" AS "First Name" FROM "user" AS "a"', ())
        
        Select with order_by::
        
            >>> tuple(user.select(order_by=user.date))
            ('SELECT * FROM "user" AS "a" ORDER BY "a"."date"', ())
            >>> tuple(user.select(order_by=Asc(user.date)))
            ('SELECT * FROM "user" AS "a" ORDER BY "a"."date" ASC', ())
            >>> tuple(user.select(order_by=(user.date.asc, user.id.desc)))
            ('SELECT * FROM "user" AS "a" ORDER BY "a"."date" ASC, "a"."id" DESC', ())
        
        Select with sub-select::
        
            >>> user_group = Table('user_group')
            >>> subselect = user_group.select(user_group.user,
            ...     where=(user_group.active == True))
            >>> user = Table('user')
            >>> tuple(user.select(user.id, where=(user.id.in_(subselect))))
            ('SELECT "a"."id" FROM "user" AS "a" WHERE ("a"."id" IN (SELECT "b"."user" FROM "user_group" AS "b" WHERE ("b"."active" = %s)))', (True,))
            >>> tuple(subselect.select(subselect.user))
            ('SELECT "a"."user" FROM (SELECT "b"."user" FROM "user_group" AS "b" WHERE ("b"."active" = %s)) AS "a"', (True,))
        
        Insert query with default values::
        
            >>> tuple(user.insert())
            ('INSERT INTO "user" DEFAULT VALUES', ())
        
        Insert query with values::
        
            >>> tuple(user.insert(columns=[user.name, user.login],
            ...         values=[['Foo', 'foo']]))
            ('INSERT INTO "user" ("name", "login") VALUES (%s, %s)', ('Foo', 'foo'))
            >>> tuple(user.insert(columns=[user.name, user.login],
            ...         values=[['Foo', 'foo'], ['Bar', 'bar']]))
            ('INSERT INTO "user" ("name", "login") VALUES (%s, %s), (%s, %s)', ('Foo', 'foo', 'Bar', 'bar'))
        
        Insert query with query::
        
            >>> passwd = Table('passwd')
            >>> select = passwd.select(passwd.login, passwd.passwd)
            >>> tuple(user.insert(values=select))
            ('INSERT INTO "user" SELECT "a"."login", "a"."passwd" FROM "passwd" AS "a"', ())
        
        Update query with values::
        
            >>> tuple(user.update(columns=[user.active], values=[True]))
            ('UPDATE "user" SET "active" = %s', (True,))
            >>> tuple(invoice.update(columns=[invoice.total], values=[invoice.amount + invoice.tax]))
            ('UPDATE "invoice" SET "total" = ("invoice"."amount" + "invoice"."tax")', ())
        
        Update query with where condition::
        
            >>> tuple(user.update(columns=[user.active], values=[True], where=(
            ...         user.active == False)))
            ('UPDATE "user" SET "active" = %s WHERE ("user"."active" = %s)', (True, False))
        
        Update query with from list::
        
            >>> group = Table('user_group')
            >>> tuple(user.update(columns=[user.active], values=[group.active],
            ...         from_=[group], where=(user.id == group.user)))
            ('UPDATE "user" AS "b" SET "active" = "a"."active" FROM "user_group" AS "a" WHERE ("b"."id" = "a"."user")', ())
        
        Delete query::
        
            >>> tuple(user.delete())
            ('DELETE FROM "user"', ())
        
        Delete query with where condition::
        
            >>> tuple(user.delete(where=(user.name == 'foo')))
            ('DELETE FROM "user" WHERE ("name" = %s)', ('foo',))
        
        Delete query with sub-query::
        
            >>> tuple(user.delete(where=(
            ...             user.id.in_(user_group.select(user_group.user)))))
            ('DELETE FROM "user" WHERE ("id" IN (SELECT "a"."user" FROM "user_group" AS "a"))', ())
        
        Flavors::
        
            >>> select = user.select()
            >>> select.offset = 10
            >>> Flavor.set(Flavor())
            >>> tuple(select)
            ('SELECT * FROM "user" AS "a" OFFSET 10', ())
            >>> Flavor.set(Flavor(max_limit=18446744073709551615))
            >>> tuple(select)
            ('SELECT * FROM "user" AS "a" LIMIT 18446744073709551615 OFFSET 10', ())
            >>> Flavor.set(Flavor(max_limit=-1))
            >>> tuple(select)
            ('SELECT * FROM "user" AS "a" LIMIT -1 OFFSET 10', ())
            >>> Flavor.set(Flavor(paramstyle='qmark'))
            >>> select = user.select()
            >>> select.where = (user.name == 'foo')
            >>> tuple(select)
            ('SELECT * FROM "user" AS "a" WHERE ("a"."name" = ?)', ('foo',))
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Topic :: Database
Classifier: Topic :: Software Development :: Libraries :: Python Modules