Dell PowerConnect W Clearpass 100 Software 3.7 Deployment Guide - Page 177

expire_time, create_user, IsValidFutureTimestamp, date/time value

Page 177 highlights

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. Amigopod 3.7 | Deployment Guide Guest Management | 177

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Amigopod 3.7
|
Deployment Guide
Guest Management
|
177
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.