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|
<?php
/**
* Conditional logic core.
*
* Contains functionality for using conditional logic in the form builder as
* well as a global processing method that can be leveraged by all types of
* conditional logic.
*
* This was contained in an addon until version 1.3.8 when it was rolled into
* core.
*
* @since 1.3.8
*/
class WPForms_Conditional_Logic_Core {
/**
* One is the loneliest number that you'll ever do.
*
* @since 1.1.0
* @var WPForms_Conditional_Logic_Core
*/
private static $instance;
/**
* Main Instance.
*
* @since 1.1.0
* @return WPForms_Conditional_Logic_Core
*/
public static function instance() {
if ( ! isset( self::$instance ) && ! ( self::$instance instanceof WPForms_Conditional_Logic_Core ) ) {
self::$instance = new WPForms_Conditional_Logic_Core;
add_action( 'wpforms_loaded', array( self::$instance, 'init' ), 10 );
}
return self::$instance;
}
/**
* Initialize.
*
* @since 1.0.0
*/
public function init() {
// Form builder.
add_action( 'wpforms_builder_enqueues', array( $this, 'builder_assets' ) );
add_action( 'wpforms_builder_print_footer_scripts', array( $this, 'builder_footer_scripts' ) );
}
/**
* Enqueue assets for the builder.
*
* @since 1.0.0
*/
public function builder_assets() {
// CSS.
wp_enqueue_style(
'wpforms-builder-conditionals',
WPFORMS_PLUGIN_URL . 'assets/css/admin-builder-conditional-logic-core.css',
array(),
WPFORMS_VERSION
);
// JavaScript.
wp_enqueue_script(
'wpforms-builder-conditionals',
WPFORMS_PLUGIN_URL . 'assets/js/admin-builder-conditional-logic-core.js',
array( 'jquery', 'wpforms-utils', 'wpforms-builder' ),
WPFORMS_VERSION,
false
);
}
/**
* Output footer scripts inside the form builder.
*
* @since 1.3.8
*/
public function builder_footer_scripts() {
?>
<script type="text/html" id="tmpl-wpforms-conditional-block">
<# var containerID = data.fieldName.replace(/]/g, '').replace(/\[/g, '-'); #>
<div class="wpforms-conditional-groups" id="wpforms-conditional-groups-{{ containerID }}">
<h4>
<select name="{{ data.fieldName }}[conditional_type]">
<# _.each(data.actions, function(key, val) { #>
<option value="{{ val }}">{{ key }}</option>
<# }) #>
</select>
{{ data.actionDesc }}
</h4>
<div class="wpforms-conditional-group" data-reference="{{ data.fieldID }}">
<table><tbody>
<tr class="wpforms-conditional-row" data-field-id="{{ data.fieldID }}" data-input-name="{{ data.fieldName }}">
<td class="field">
<select name="{{ data.fieldName }}[conditionals][0][0][field]" class="wpforms-conditional-field" data-groupid="0" data-ruleid="0">
<option value="">{{ wpforms_builder.select_field }}</option>
</select>
</td>
<td class="operator">
<select name="{{ data.fieldName }}[conditionals][0][0][operator]" class="wpforms-conditional-operator">
<option value="==">{{ wpforms_builder.operator_is }}</option>
<option value="!=">{{ wpforms_builder.operator_is_not }}</option>
<option value="e">{{ wpforms_builder.operator_empty }}</option>
<option value="!e">{{ wpforms_builder.operator_not_empty }}</option>
<option value="c">{{ wpforms_builder.operator_contains }}</option>
<option value="!c">{{ wpforms_builder.operator_not_contains }}</option>
<option value="^">{{ wpforms_builder.operator_starts }}</option>
<option value="~">{{ wpforms_builder.operator_ends }}</option>
<option value=">">{{ wpforms_builder.operator_greater_than }}</option>
<option value="<">{{ wpforms_builder.operator_less_than }}</option>
</select>
</td>
<td class="value">
<select name="{{ data.fieldName }}[conditionals][0][0][value]" class="wpforms-conditional-value">
<option value="">{{ wpforms_builder.select_choice }}</option>
</select>
</td>
<td class="actions">
<button class="wpforms-conditional-rule-add" title="{{ wpforms_builder.rule_create }}">{{ wpforms_builder.and }}</button><button class="wpforms-conditional-rule-delete" title="{{ wpforms_builder.rule_delete }}"><i class="fa fa-times-circle" aria-hidden="true"></i></button>
</td>
</tr>
</tbody></table>
<h5>{{ wpforms_builder.or }}</h5>
</div>
<button class="wpforms-conditional-groups-add">{{ wpforms_builder.rule_create_group }}</button>
</div>
</script>
<?php
}
/**
* Build the conditional logic settings to display in the form builder.
*
* @since 1.3.8
*
* @param array $args Data needed for a block to be generated properly.
* @param bool $echo Whether to return or print. Default: print.
*
* @return string
*/
public function builder_block( $args = array(), $echo = true ) {
if ( ! empty( $args['form'] ) ) {
$form_fields = wpforms_get_form_fields( $args['form'], wpforms_get_conditional_logic_form_fields_supported() );
} else {
$form_fields = array();
}
// Define data.
$type = ! empty( $args['type'] ) ? $args['type'] : 'field';
$panel = ! empty( $args['panel'] ) ? $args['panel'] : false; // notifications/connections.
$parent = ! empty( $args['parent'] ) ? $args['parent'] : false; // settings.
$subsection = ! empty( $args['subsection'] ) ? $args['subsection'] : false;
$field = ! empty( $args['field'] ) ? $args['field'] : false;
$reference = ! empty( $args['reference'] ) ? $args['reference'] : '';
$data_attrs = '';
ob_start();
// Block open markup.
printf(
'<div class="wpforms-conditional-block wpforms-conditional-block-%s" data-type="%s">',
esc_attr( $type ),
esc_attr( $type )
);
switch ( $type ) {
case 'field':
/*
* This settings block is for a field.
*/
// Define more data for this field.
$fields_instance = $args['instance'];
$field_id = absint( $field['id'] );
$field_name = "fields[{$field_id}]";
$groups_id = "wpforms-conditional-groups-fields-{$field_id}";
$action_selected = ! empty( $field['conditional_type'] ) ? $field['conditional_type'] : '';
$conditionals = ! empty( $field['conditionals'] ) ? $field['conditionals'] : array( array( array() ) );
$data_attrs = 'data-field-id="' . $field_id . '" ';
$reference = $field_id;
$enabled = isset( $field['conditional_logic'] ) ? $field['conditional_logic'] : false;
$action_desc = ! empty( $args['action_desc'] ) ? $args['action_desc'] : esc_html__( 'this field if', 'wpforms-lite' );
if ( empty( $args['actions'] ) ) {
$actions = array(
'show' => esc_attr__( 'Show', 'wpforms-lite' ),
'hide' => esc_attr__( 'Hide', 'wpforms-lite' ),
);
} else {
$actions = array_map( 'esc_attr', $args['actions'] );
}
// Output Conditional Logic toggle checkbox field option.
$fld = $fields_instance->field_element(
'checkbox',
$field,
array(
'slug' => 'conditional_logic',
'value' => $enabled,
'desc' => esc_html__( 'Enable conditional logic', 'wpforms-lite' ),
'tooltip' => '<a href="https://wpforms.com/docs/how-to-use-conditional-logic-with-wpforms/" target="_blank" rel="noopener noreferrer">' . esc_html__( 'How to use Conditional Logic', 'wpforms-lite' ) . '</a>',
'data' => array(
'name' => $field_name,
'actions' => $actions,
'action-desc' => esc_attr( $action_desc ),
),
),
false
);
$fields_instance->field_element(
'row',
$field,
array(
'slug' => 'conditional_logic',
'content' => $fld,
'class' => 'wpforms-conditionals-enable-toggle',
)
);
// Prevent conditional logic from being applied to itself.
if ( ! empty( $form_fields[ $field['id'] ] ) ) {
unset( $form_fields[ $field['id'] ] );
}
break;
case 'panel':
/*
* This settings block is for something else - connections / notifications etc.
*/
$form_data = $args['form'];
$action_desc = ! empty( $args['action_desc'] ) ? $args['action_desc'] : esc_html__( 'this connection if', 'wpforms-lite' );
if ( empty( $args['actions'] ) ) {
$actions = array(
'go' => esc_attr__( 'Process', 'wpforms-lite' ),
'stop' => esc_attr__( 'Don\'t process', 'wpforms-lite' ),
);
} else {
$actions = array_map( 'esc_attr', $args['actions'] );
}
// Below we do a bunch of voodoo to determine where this block
// is located in the form builder - eg is it in a top level
// setting or in a subsection, etc.
if ( ! empty( $parent ) ) {
if ( ! empty( $subsection ) ) {
$field_name = sprintf( '%s[%s][%s]', $parent, $panel, $subsection );
$groups_id = sprintf( 'wpforms-conditional-groups-%s-%s-%s', $parent, $panel, $subsection );
$enabled = ! empty( $form_data[ $parent ][ $panel ][ $subsection ]['conditional_logic'] ) ? true : false;
$action_selected = ! empty( $form_data[ $parent ][ $panel ][ $subsection ]['conditional_type'] ) ? $form_data[ $parent ][ $panel ][ $subsection ]['conditional_type'] : '';
$conditionals = ! empty( $form_data[ $parent ][ $panel ][ $subsection ]['conditionals'] ) ? $form_data[ $parent ][ $panel ][ $subsection ]['conditionals'] : array( array( array() ) );
} else {
$field_name = sprintf( '%s[%s]', $parent, $panel );
$groups_id = sprintf( 'wpforms-conditional-groups-%s-%s', $parent, $panel );
$enabled = ! empty( $form_data[ $parent ][ $panel ]['conditional_logic'] ) ? true : false;
$action_selected = ! empty( $form_data[ $parent ][ $panel ]['conditional_type'] ) ? $form_data[ $parent ][ $panel ]['conditional_type'] : '';
$conditionals = ! empty( $form_data[ $parent ][ $panel ]['conditionals'] ) ? $form_data[ $parent ][ $panel ]['conditionals'] : array( array( array() ) );
}
} else {
$field_name = sprintf( '%s', $panel );
$groups_id = sprintf( 'wpforms-conditional-groups-%s', $panel );
$enabled = ! empty( $form_data[ $panel ]['conditional_logic'] ) ? true : false;
$action_selected = ! empty( $form_data[ $panel ]['conditional_type'] ) ? $form_data[ $panel ]['conditional_type'] : '';
$conditionals = ! empty( $form_data[ $panel ]['conditionals'] ) ? $form_data[ $panel ]['conditionals'] : array( array( array() ) );
}
// Output Conditional Logic toggle checkbox panel setting.
wpforms_panel_field(
'checkbox',
$panel,
'conditional_logic',
$args['form'],
esc_html__( 'Enable conditional logic', 'wpforms-lite' ),
array(
'tooltip' => '<a href="https://wpforms.com/docs/how-to-use-conditional-logic-with-wpforms/" target="_blank" rel="noopener noreferrer">' . esc_html__( 'How to use Conditional Logic', 'wpforms-lite' ) . '</a>',
'parent' => $parent,
'subsection' => $subsection,
'input_id' => 'wpforms-panel-field-' . implode( '-', array_filter( array( $parent, $panel, $subsection, 'conditional_logic', 'checkbox' ) ) ),
'input_class' => 'wpforms-panel-field-conditional_logic-checkbox',
'class' => 'wpforms-conditionals-enable-toggle',
'data' => array(
'name' => $field_name,
'actions' => $actions,
'action-desc' => esc_attr( $action_desc ),
),
)
);
break;
default:
$enabled = false;
$field_name = '';
$reference = '';
$action_selected = '';
$action_desc = '';
$groups_id = '';
$actions = array();
$conditionals = array();
}
// Only display the block details if conditional logic is enabled.
if ( $enabled ) :
$data_attrs .= 'data-input-name="' . esc_attr( $field_name ) . '"';
$style = $enabled ? '' : 'display:none;';
// Groups wrap open markup.
printf(
'<div class="wpforms-conditional-groups" id="%s" style="%s">',
sanitize_html_class( $groups_id ),
esc_attr( $style )
);
// This is the "[Show] this field if" type text and setting.
echo '<h4>';
echo '<select name="' . esc_attr( $field_name ) . '[conditional_type]">';
foreach ( $actions as $key => $label ) {
printf(
'<option value="%s" %s>%s</option>',
esc_attr( trim( $key ) ),
selected( $key, $action_selected, false ),
esc_html( $label )
);
}
echo '</select>';
echo esc_html( $action_desc ); // Eg "this field if".
echo '</h4>';
// Go through each conditional logic group.
foreach ( $conditionals as $group_id => $group ) :
// Individual group open markup.
echo '<div class="wpforms-conditional-group" data-reference="' . $reference . '">';
echo '<table><tbody>';
foreach ( $group as $rule_id => $rule ) :
$selected_current = false;
// Individual rule table row.
echo '<tr class="wpforms-conditional-row" ' . $data_attrs . '>';
// Rule field - allows the user to select
// which field the conditional logic rule is
// anchored to.
echo '<td class="field">';
printf(
'<select name="%s[conditionals][%d][%d][field]" class="wpforms-conditional-field" data-groupid="%d" data-ruleid="%d">',
esc_attr( $field_name ),
(int) $group_id,
(int) $rule_id,
(int) $group_id,
(int) $rule_id
);
echo '<option value="">' . esc_html__( '--- Select Field ---', 'wpforms-lite' ) . '</option>';
if ( ! empty( $form_fields ) ) {
foreach ( $form_fields as $form_field ) {
// Exclude fields that are
// leveraging dynamic choices.
if ( ! empty( $form_field['dynamic_choices'] ) ) {
continue;
}
if ( isset( $rule['field'] ) ) {
$selected = $rule['field'];
$selected_current = $rule['field'];
} else {
$selected = false;
}
$field_label = isset( $form_field['label'] ) && ! wpforms_is_empty_string( trim( $form_field['label'] ) ) ? $form_field['label'] : sprintf( /* translators: %d - field ID. */ __( 'Field #%d', 'wpforms-lite' ), absint( $form_field['id'] ) );
$selected = selected( $selected, $form_field['id'], false );
printf( '<option value="%s" %s>%s</option>', absint( $form_field['id'] ), esc_attr( $selected ), esc_html( $field_label ) );
}
}
echo '</select>';
echo '</td>';
// Rule operator - allows the user to
// determine the comparison operator used
// for processing.
echo '<td class="operator">';
printf(
'<select name="%s[conditionals][%s][%s][operator]" class="wpforms-conditional-operator">',
$field_name,
$group_id,
$rule_id
);
$operator = ! empty( $rule['operator'] ) ? $rule['operator'] : false;
printf( '<option value="==" %s>%s</option>', selected( $operator, '==', false ), esc_html__( 'is', 'wpforms-lite' ) );
printf( '<option value="!=" %s>%s</option>', selected( $operator, '!=', false ), esc_html__( 'is not', 'wpforms-lite' ) );
printf( '<option value="e" %s>%s</option>', selected( $operator, 'e', false ), esc_html__( 'empty', 'wpforms-lite' ) );
printf( '<option value="!e" %s>%s</option>', selected( $operator, '!e', false ), esc_html__( 'not empty', 'wpforms-lite' ) );
// Only text based fields support
// these additional operators.
$disabled = '';
if ( ! empty( $rule['field'] ) && ! empty( $form_fields[ $rule['field'] ]['type'] ) ) {
$disabled = in_array( $form_fields[ $rule['field'] ]['type'], array( 'text', 'textarea', 'email', 'url', 'number', 'hidden', 'rating', 'number-slider', 'net_promoter_score' ), true ) ? '' : ' disabled';
}
printf( '<option value="c" %s%s>%s</option>', selected( $operator, 'c', false ), $disabled, esc_html__( 'contains', 'wpforms-lite' ) );
printf( '<option value="!c" %s%s>%s</option>', selected( $operator, '!c', false ), $disabled, esc_html__( 'does not contain', 'wpforms-lite' ) );
printf( '<option value="^" %s%s>%s</option>', selected( $operator, '^', false ), $disabled, esc_html__( 'starts with', 'wpforms-lite' ) );
printf( '<option value="~" %s%s>%s</option>', selected( $operator, '~', false ), $disabled, esc_html__( 'ends with', 'wpforms-lite' ) );
printf( '<option value=">" %s%s>%s</option>', selected( $operator, '>', false ), $disabled, esc_html__( 'greater than', 'wpforms-lite' ) );
printf( '<option value="<" %s%s>%s</option>', selected( $operator, '<', false ), $disabled, esc_html__( 'less than', 'wpforms-lite' ) );
echo '</select>';
echo '</td>';
// Rule value - allows the user to
// determine the value we are using for
// comparison.
echo '<td class="value">';
if ( isset( $rule['field'] ) ) {
// For empty/not empty fields the field value input is not needed so we disable it.
if ( ! empty( $rule['operator'] ) && in_array( $rule['operator'], array( 'e', '!e' ), true ) ) {
$disabled = 'disabled';
$rule['value'] = '';
} else {
$disabled = '';
}
if ( isset( $form_fields[ $rule['field'] ]['type'] ) && in_array( $form_fields[ $rule['field'] ]['type'], array( 'text', 'textarea', 'email', 'url', 'number', 'hidden', 'rating', 'number-slider', 'net_promoter_score' ), true ) ) {
$type = in_array( $form_fields[ $rule['field'] ]['type'], array( 'rating', 'net_promoter_score', 'number-slider' ), true ) ? 'number' : 'text';
printf(
'<input type="%s" name="%s[conditionals][%s][%s][value]" value="%s" class="wpforms-conditional-value" %s>',
$type,
$field_name,
$group_id,
$rule_id,
esc_attr( $rule['value'] ),
$disabled
);
} else {
printf(
'<select name="%1$s[conditionals][%2$s][%3$s][value]" class="wpforms-conditional-value" %4$d>',
$field_name,
$group_id,
$rule_id,
$disabled
);
echo '<option value="">' . esc_html__( '--- Select Choice ---', 'wpforms-lite' ) . '</option>';
if ( ! empty( $form_fields[ $rule['field'] ]['choices'] ) ) {
foreach ( $form_fields[ $rule['field'] ]['choices'] as $option_id => $option ) {
$value = isset( $rule['value'] ) ? $rule['value'] : '';
$label = ! isset( $option['label'] ) || '' === trim( $option['label'] )
? sprintf( /* translators: %d - choice number. */
esc_html__( 'Choice %d', 'wpforms-lite' ),
(int) $option_id
)
: $option['label'];
printf(
'<option value="%1$s" %2$s>%3$s</option>',
esc_attr( $option_id ),
selected( $option_id, $value, false ),
esc_html( trim( $label ) )
);
}
}
echo '</select>';
}
} else {
echo '<select></select>';
} // End if().
echo '</td>';
// Rule actions.
echo '<td class="actions">';
echo '<button class="wpforms-conditional-rule-add" title="' . esc_attr__( 'Create new rule', 'wpforms-lite' ) . '">' . esc_html_x( 'AND', 'Conditional Logic: new rule logic.', 'wpforms-lite' ) . '</button>';
echo '<button class="wpforms-conditional-rule-delete" title="' . esc_attr__( 'Delete rule', 'wpforms-lite' ) . '"><i class="fa fa-times-circle" aria-hidden="true"></i></button>';
echo '</td>';
echo '</tr>'; // Close individual rule table row.
endforeach; // End foreach() for individual rules.
echo '</tbody></table>';
echo '<h5>' . esc_html_x( 'or', 'Conditional Logic: new rule logic.', 'wpforms-lite' ) . '</h5>';
echo '</div>'; // Close individual group markup.
endforeach; // End foreach() for conditional logic groups.
echo '<button class="wpforms-conditional-groups-add">' . esc_html__( 'Add rule group', 'wpforms-lite' ) . '</button>';
echo '</div>'; // Close Groups wrap markup.
endif; // End $enabled.
echo '</div>'; // Close block markup.
$output = ob_get_clean();
if ( $echo ) {
echo $output; //phpcs:ignore
} else {
return $output;
}
}
/**
* Alias method for backwards compatibility.
*
* @since 1.1.0
* @deprecated 1.3.8 Use wpforms_conditional_logic()->builder_block() instead.
*
* @param array $args Data needed for a block to be generated properly.
* @param bool $echo Whether to return or print. Default: print.
*
* @return string
*/
public function conditionals_block( $args = array(), $echo = true ) {
if ( $echo ) {
echo $this->builder_block( $args, $echo ); //phpcs:ignore
} else {
return $this->builder_block( $args, $echo );
}
}
/**
* Process conditional rules.
*
* Check if a form passes the conditional logic rules that are provided.
*
* @since 1.3.8
* @since 1.6.1 Added multiple select support.
*
* @param array $fields List of fields with data and settings.
* @param array $form_data Form data and settings.
* @param array $conditionals List of conditionals.
*
* @return bool
*/
public function process( $fields, $form_data, $conditionals ) {
if ( empty( $conditionals ) ) {
return true;
}
$pass = false;
foreach ( $conditionals as $group_id => $group ) {
$pass_group = true;
if ( ! empty( $group ) ) {
foreach ( $group as $rule_id => $rule ) {
if ( ! isset( $rule['field'] ) || '' == $rule['field'] || ! isset( $rule['operator'] ) ) {
continue;
}
if ( ! isset( $rule['value'] ) && ! in_array( $rule['operator'], array( 'e', '!e' ), true ) ) {
continue;
}
$rule_field = $rule['field'];
$rule_operator = $rule['operator'];
$rule_value = isset( $rule['value'] ) ? $rule['value'] : '';
if ( in_array( $fields[ $rule_field ]['type'], array( 'text', 'textarea', 'email', 'url', 'number', 'hidden', 'rating', 'number-slider', 'net_promoter_score' ), true ) ) {
// Text based fields.
$left = strtolower( trim( wpforms_decode_string( $fields[ $rule_field ]['value'] ) ) );
$right = strtolower( trim( $rule_value ) );
switch ( $rule_operator ) {
case '==':
$pass_rule = ( $left == $right );
break;
case '!=':
$pass_rule = ( $left != $right );
break;
case 'c':
$pass_rule = ( strpos( $left, $right ) !== false );
break;
case '!c':
$pass_rule = ( strpos( $left, $right ) === false );
break;
case '^':
$pass_rule = ( strrpos( $left, $right, -strlen( $left ) ) !== false );
break;
case '~':
$pass_rule = ( ( $temp = strlen( $left ) - strlen( $right ) ) >= 0 && strpos( $left, $right, $temp ) !== false );
break;
case 'e':
$pass_rule = ( '' == $left );
break;
case '!e':
$pass_rule = ( '' != $left );
break;
case '>':
$left = preg_replace( '/[^-0-9.]/', '', $left );
$pass_rule = ( '' !== $left ) && ( floatval( $left ) > floatval( $right ) );
break;
case '<':
$left = preg_replace( '/[^-0-9.]/', '', $left );
$pass_rule = ( '' !== $left ) && ( floatval( $left ) < floatval( $right ) );
break;
default:
$pass_rule = apply_filters( 'wpforms_process_conditional_logic', false, $rule_operator, $left, $right );
break;
}
} else {
// Selector based fields.
$provided_id = false;
if (
in_array( $fields[ $rule_field ]['type'], array( 'payment-multiple', 'payment-checkbox', 'payment-select' ), true ) &&
isset( $fields[ $rule_field ]['value_raw'] ) &&
'' != $fields[ $rule_field ]['value_raw']
) {
// Payment Multiple/Checkbox fields store the option key,
// so we can reference that easily.
$provided_id = explode( ',', (string) $fields[ $rule_field ]['value_raw'] );
} elseif ( isset( $fields[ $rule_field ]['value'] ) && '' != $fields[ $rule_field ]['value'] ) {
// Other select type fields we don't store the
// option key so we have to do the logic to locate
// it ourselves.
$provided_id = array();
if ( in_array( $fields[ $rule_field ]['type'], array( 'checkbox', 'select' ), true ) ) {
$values = explode( "\n", $fields[ $rule_field ]['value'] );
} else {
$values = (array) $fields[ $rule_field ]['value'];
}
foreach ( $form_data['fields'][ $rule_field ]['choices'] as $key => $choice ) {
$choice = array_map( 'wpforms_decode_string', $choice );
if ( in_array( $fields[ $rule_field ]['type'], [ 'radio', 'checkbox', 'select' ], true ) ) {
// Remove newlines from the choice (label or value) before comparing.
// Newlines can be pasted with a long text to the choice label (or value) in the form builder.
$choice = array_map( 'sanitize_text_field', $choice );
}
foreach ( $values as $value ) {
$value = wpforms_decode_string( $value );
if ( in_array( $value, $choice, true ) ) {
$provided_id[] = $key;
}
}
}
}
$left = (array) $provided_id;
$right = strtolower( trim( (int) $rule_value ) );
switch ( $rule_operator ) {
case '==':
case 'c': // BC, no longer available.
case '^': // BC, no longer available.
case '~': // BC, no longer available.
$pass_rule = in_array( $right, $left );
break;
case '!=':
case '!c': // BC, no longer available.
$pass_rule = ! in_array( $right, $left );
break;
case 'e':
$pass_rule = empty( $left[0] );
break;
case '!e':
$pass_rule = ! empty( $left[0] );
break;
default:
$pass_rule = apply_filters( 'wpforms_process_conditional_logic', false, $rule_operator, $left, $right );
break;
}
} // End if().
if ( ! $pass_rule ) {
$pass_group = false;
break;
}
} // End foreach().
} // End if().
if ( $pass_group ) {
$pass = true;
}
} // End foreach().
return $pass;
}
/**
* Alias function for backwards compatibility.
*
* @since 1.0.0
*
* @param array $fields List of fields with data and settings.
* @param array $form_data Form data and settings.
* @param array $conditionals List of conditionals.
*
* @return bool
*/
public function conditionals_process( $fields, $form_data, $conditionals ) {
return $this->process( $fields, $form_data, $conditionals );
}
}
/**
* The function which returns the one WPForms_Conditional_Logic_Core instance.
*
* Use this function like you would a global variable, except without needing
* to declare the global.
*
* @since 1.1.0
*
* @return WPForms_Conditional_Logic_Core
*/
function wpforms_conditional_logic() {
return WPForms_Conditional_Logic_Core::instance();
}
wpforms_conditional_logic();
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