Server-side Validation of Edit Profile Form - ProfilePress
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Home » docs » Server-side Validation of Edit Profile Form
Server-side Validation of Edit Profile Form
Last Updated on August 25, 2023
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Server-side Validation of Edit Profile Form
Last Updated on August 25, 2023
In case you didn’t know, ProfilePress ship with a front-end edit profile form and My Account page where registered users of your membership site can edit their profile information or account details.
In this tutorial, I will show us how to validate edit profile form fields on the server side.
Note: all code in this post should go into your active theme’s functions.php file a site-specific plugin.
Tutorial Proper
All server-side validation should be done in ppress_edit_profile_validation filter.
For example, the code snippet below will cause the edit profile form not to update the user information if the password field is empty.
add_filter( 'ppress_edit_profile_validation', function ( $wp_error ) {
if ( isset( $_POST['eup_password'] ) && empty( $_POST['eup_password'] ) ) {
$wp_error = new WP_Error( 'empty_password', 'Password cannot be empty.' );
}
return $wp_error;
} );
We can go a step further and cause the form not to update if the user password is less than five(5).
add_filter( 'ppress_edit_profile_validation', function ( $wp_error ) {
if ( isset( $_POST['eup_password'] ) && strlen( $_POST['eup_password'] ) < 5 ) {
$wp_error = new WP_Error( 'password_length', 'Password length must be greater than 5' );
}
return $wp_error;
} );
Validating custom fields is pretty much the same as the examples above.
For example, say you have a Province custom field with the field key province and you want to ensure the field is not empty.
add_filter( 'ppress_edit_profile_validation', function ( $wp_error ) {
if ( isset( $_POST['province'] ) && empty( $_POST['province'] ) ) {
$wp_error = new WP_Error( 'empty_field', 'Province field cannot be left empty.' );
}
return $wp_error;
} );
A custom field that is a multi-select dropdown can be quite tricky because its value type is an array and not a string. Let’s see some examples.
Assuming you have a car brand multi-select custom field with key car_brand with five options and you insist user must select at leave the field empty, see the code snippet below.
add_filter( 'ppress_edit_profile_validation', function ( $wp_error ) {
if ( is_null( $_POST['car_brand'] ) ) {
$wp_error = new WP_Error( 'field_empty', 'Car brand field cannot be left empty' );
}
return $wp_error;
} );
We can also go a step further and ensure that at least two options are selected.
add_filter( 'ppress_edit_profile_validation', function ( $wp_error ) {
if ( isset( $_POST['car_brand'] ) && count( $_POST['car_brand'] ) < 2 ) {
$wp_error = new WP_Error( 'options_left', 'At least two car brands must be selected.' );
}
return $wp_error;
} );
If you have any question or not clear about anything in the post, let us know in the comments.
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