pydo.operators.BindingConverter

Package pydo :: Module operators :: Class BindingConverter

[show private | hide private]

Class BindingConverter

object --+
         |
        BindingConverter

Known Subclasses:: MssqlConverter, MysqlConverter, PsycopgConverter, SqliteConverter

A value converter that uses bind variables.

>>> op=EQ(FIELD('x'), 45, converter=BindingConverter('format'))
>>> print op
(x = %s)

>>> c=BindingConverter('format')
>>> op=AND(EQ(FIELD('x'), 400), NE(FIELD('y'), ('^', FIELD('z'), 2)), converter=c)
>>> type(op.converter)==BindingConverter
True

>>> type(op[1].converter)==BindingConverter
True

>>> type(op[2].converter)==BindingConverter
True

>>> type(op[2][2].converter)==BindingConverter
True

>>> print op
((x = %s) AND (y != (z ^ %s)))

>>> c.values
[400, 2]

Method Summary
	`__init__(self, paramstyle)`
	`__call__(self, val)`
	`convert(self, val)`
	`reset(self)`
	`_genName(self)`
	`_genNumber(self)`
	`_get_paramstyle(self)`
	`_set_paramstyle(self, paramstyle)`
Inherited from object
	`__delattr__(...)` x.__delattr__('name') <==> del x.name
	`__getattribute__(...)` x.__getattribute__('name') <==> x.name
	`__hash__(x)` x.__hash__() <==> hash(x)
	`__reduce__(...)` helper for pickle
	`__reduce_ex__(...)` helper for pickle
	`__repr__(x)` x.__repr__() <==> repr(x)
	`__setattr__(...)` x.__setattr__('name', value) <==> x.name = value
	`__str__(x)` x.__str__() <==> str(x)
Inherited from type
	`__new__(T, S, ...)` T.__new__(S, ...) -> a new object with type S, a subtype of T

Property Summary
	`paramstyle`
	`values`

Class Variable Summary
`dict`	`converters` = `{}`
`tuple`	`supported_styles` = `('format', 'pyformat', 'qmark', 'name...`

Property Details

paramstyle

Get Method:: _get_paramstyle(self)
Set Method:: _set_paramstyle(self, paramstyle)

values

Get Method:: fget(...)

Class Variable Details

converters

Type:: dict
Value:: {}

supported_styles

Type:: tuple
Value:: ('format', 'pyformat', 'qmark', 'named', 'numeric')

Generated by Epydoc 2.0 on Wed Mar 8 10:18:58 2006

http://epydoc.sf.net