Do something whenever value of a field is changed

Archived from the Xataface Users forum.

hhkilis — Mon Apr 02, 2012 6:21 am

Hi,

I want Xataface to execute some commands whenever value of a field is changed.

How can I handle this?

I know that there are two triggers available to be implemented in a table’s delegate class. (AfterUpdate and AfterSave) Problem is I don’t know how to understand that value of a field is changed during execution of one of these triggers since I can only see the last value either updated or not from the database?

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shannah — Mon Apr 02, 2012 9:40 am

In the beforeSave, beforeUpdate, and beforeInsert triggers you can check for changed values.

e.g.

Code: Select all

beforeSave($record){     if ( $record->valueChanged('myfield') ){         // Do something .. the value for the field 'myfield' has been changed.     } }

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hhkilis — Tue Apr 03, 2012 3:36 am

Thanks