Dell PowerConnect W-Clearpass 100 Software Guía de usuario descargar pdf (Pagina 250)

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The Conversion step should be used when the type of data displayed in the user interface is different from

the type required when storing the field.

For example, consider a form field displayed as a date/time picker, such as the expire_time field used to

specify an account expiration time on the create_user form. The user interface is displayed as a text field,

but the value that is required for the form processing is a UNIX time (integer value).

In this case, the Conversion function is set to NwaConvertOptionalDateTime to convert the string time

representation from the form field (for example, “2008-01-01”) to UNIX time (for example, 1199145600).

The Validator for the expire_time field is IsValidFutureTimestamp, which checks an integer argument

against the current time.

The Value Formatter is applied after validation. This may be used in situations where the validator requires

the specific type of data supplied on the form, but the stored value should be of a different type. In the

expire_time field example, this is not required, and so the value formatter is not used. However, if the

Conversion function had not been used, and the Validator had been set to IsValidFutureDateTime (which

checks a string date/time value), then the Value Formatter would need to be set to

NwaConvertOptionalDateTime to perform the data conversion before the form processing.

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