When you mark a List field as required, only a single input from any column is required. What if you want every input in every column to be required? Here is a snippet that let’s you do it.
View this code snippet on GitHub.How do I install this snippet?
Just copy and paste the code above in your theme’s ”functions.php” file.
Do I need to configure this snippet to work with my form(s)?
Require All Columns on All Forms
Only if you want to apply this functionality to specific forms and/or specific fields. A default instantiation of this class (with no parameters) will apply this functionality to all list fields on all forms.
new GWRequireListColumns();
Require All Columns on a Specific Form
To apply this to a specific form, you would simply pass the form ID as the first parameter:
new GWRequireListColumns(4);
Require All Columns on a Specific Field
To apply this functionality to a specific form and a specific List field on that form, you would specify the form ID as the first parameter and the field ID as the second:
new GWRequireListColumns(4, 2);
Require All Columns on a Group of Fields
To apply this functionality to a specific form and multiple List fields on that form, you would specify the form ID as the first parameter and an array of fields IDs as the second parameter:
new GWRequireListColumns(4, array(2,3) );
Require Specific Columns on a Group of Fields
To require specific columns on a specific field, you would specific the form ID, the field ID and the specific columns (by index, starting with 1) you would like to require:
new GWRequireListColumns( 240, 1, array( 2, 3 ) );
Note: If you have used new GWRequireListColumns() to require all columns on all fields, you can override which columns are required for a specific field by passing the $require_columns parameter in a new instance of this class.
Summary
This can be conveniently used in combination with the Set Number of List Field Rows by Field Value snippet.