web2py.gluon.dal.SQLCustomType

Package web2py :: Package gluon :: Module dal :: Class SQLCustomType |
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# Class SQLCustomType

source code

    object --+
             |
            SQLCustomType

    allows defining of custom SQL types

    Example::

        decimal = SQLCustomType(
            type ='double',
            native ='integer',
            encoder =(lambda x: int(float(x) * 100)),
            decoder = (lambda x: Decimal("0.00") + Decimal(str(float(x)/100)) )
            )

        db.define_table(
            'example',
            Field('value', type=decimal)
            )

    :param type: the web2py type (default = 'string')
    :param native: the backend type
    :param encoder: how to encode the value to store it in the backend
    :param decoder: how to decode the value retrieved from the backend
    :param validator: what validators to use ( default = None, will use the
        default validator for type)

Instance Methods | [hide private]
__init__(self, type=`'``string``'`, native=global_settings.applications_parent, encoder=global_settings.applications_parent, decoder=global_settings.applications_parent, validator=global_settings.applications_parent, _class=global_settings.applications_parent) x.__init__(...) initializes x; see x.__class__.__doc__ for signature | source code
startswith(self, text=global_settings.applications_parent) | source code
__getslice__(self, a=0, b=100) | source code
__getitem__(self, i) | source code
__str__(self) str(x) | source code
Inherited from `object`: `__delattr__`, `__getattribute__`, `__hash__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__repr__`, `__setattr__`

Properties | [hide private]
Inherited from `object`: `__class__`

Method Details | [hide private]

### __init__(self, type=`'``string``'`, native=global_settings.applications_parent, encoder=global_settings.applications_parent, decoder=global_settings.applications_parent, validator=global_settings.applications_parent, _class=global_settings.applications_parent) (Constructor) | source code
x.__init__(...) initializes x; see x.__class__.__doc__ for signature Overrides: object.__init__ (inherited documentation)

### __str__(self) (Informal representation operator) | source code
str(x) Overrides: object.__str__ (inherited documentation)