Webform Handler: Compare Fields

About

Configurable handler for comparing two fields on a webform.

Installation and Configuration

Install and enable as any other drupal 8 module, no special requirements.

To configure the interface

1. Navigate to your webform's handlers page (e.g. /admin/structure/webform/manage/form_id/handlers).
2. Click [+ Add handler] button.
3. Click [Add handler] next to "Validate Entries by Comparing 2 fields"
4. Enter the field names and comparison operator and data type information
   • Machine name is generally just the key from the form build page.
   • Allowable operators are "==", "!=", "<>", "<", "<=", ">", and ">=".
     While "===", and "!==" are included for completeness, they are of
     little value as units are hard converted before comparison.
   • Nearly all webform values are strings by default, choose how they
     should be handled if they are different, this is especially critical for
     dates. Both sides of the comparison will be treated as the same type.
   • At this time, both integers and floating point numbers are compared as floats.
5. Click [Save]
6. This handler can be added multiple times one one form by repeated the above steps.

MSU required information

Written By Kevin Finkenbinder while working for MSU.

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MICHIGAN STATE UNIVERSITY BOARD OF TRUSTEES

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