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gravity_forms-v5.php
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gravity_forms-v5.php
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<?php
/**
* Description: ACF field to select one or many Gravity Forms
* Version: 1.1.0
* Author: @adam_pope of @stormuk
* Author URI: http://www.stormconsultancy.co.uk
* License: MIT
* License URI: http://opensource.org/licenses/MIT
*/
class acf_field_gravity_forms extends acf_field
{
/**
* __construct()
*
* This function will setup the field type data
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function __construct()
{
$this->name = 'gravity_forms_field';
$this->label = __( 'Gravity Forms' );
$this->category = __( 'Relational', 'acf' );
$this->defaults = array(
'allow_multiple' => 0,
'allow_null' => 0
);
parent::__construct();
}
/**
* render_field_settings()
*
* Create extra settings for your field. These are visible when editing a field
*
* @type action
* @since 3.6
* @date 23/01/13
*
* @param $field (array) the $field being edited
* @return n/a
*/
function render_field_settings( $field )
{
/**
* acf_render_field_setting()
*
* This function will create a setting for your field. Simply pass the $field parameter and an array of field settings.
* The array of settings does not require a `value` or `prefix`; These settings are found from the $field array.
*
* More than one setting can be added by copy/paste the above code.
* Please note that you must also have a matching $defaults value for the field name (font_size)
*/
acf_render_field_setting( $field, array(
'label' => 'Allow Null?',
'type' => 'radio',
'name' => 'allow_null',
'choices' => array(
1 => __( 'Yes', 'acf' ),
0 => __( 'No', 'acf' ),
),
'layout' => 'horizontal'
) );
acf_render_field_setting( $field, array(
'label' => 'Allow Multiple?',
'type' => 'radio',
'name' => 'allow_multiple',
'choices' => array(
1 => __( 'Yes', 'acf' ),
0 => __( 'No', 'acf' ),
),
'layout' => 'horizontal'
) );
}
/**
* render_field()
*
* Create the HTML interface for your field
*
* @param $field (array) the $field being rendered
*
* @type action
* @since 3.6
* @date 23/01/13
*
* @param $field (array) the $field being edited
* @return n/a
*/
function render_field( $field )
{
$field = array_merge( $this->defaults, $field );
$choices = array();
if ( class_exists( 'RGFormsModel' ) )
{
$forms = RGFormsModel::get_forms( 1 );
}
else
{
echo '<font style="color:red; font-weight:bold;">Warning: Gravity Forms is not installed or activated. This field does not function without Gravity Forms!</font>';
}
if ( isset( $forms ) )
{
foreach ( $forms as $form )
{
$choices[intval( $form->id )] = ucfirst( $form->title );
}
}
$field['choices'] = $choices;
$field['type'] = 'select';
$multiple = '';
if ( $field['allow_multiple'] )
{
$multiple = 'multiple="multiple" data-multiple="1"';
echo '<input type="hidden" name="' . $field['name'] . '">';
}
?>
<select id="<?php echo str_replace( array( '[', ']' ), array( '-', '' ), $field['name'] ); ?>" name="<?php echo $field['name'] . ( ( $field['allow_multiple'] ) ? '[]' : '' ); ?>" <?php echo $multiple; ?>>
<?php if ( $field['allow_null'] ) : ?>
<option value="">Select ...</option>
<?php endif; ?>
<?php foreach ( $field['choices'] as $key => $value ) : ?>
<option value="<?php echo $key; ?>" <?php echo ( ( ( is_array( $field['value'] ) && in_array( $key, $field['value'] ) ) OR $field['value'] == $key ) ? 'selected="selected"' : '' ); ?>><?php echo $value; ?></option>
<?php endforeach; ?>
</select>
<?php
}
/**
* format_value()
*
* This filter is applied to the $value after it is loaded from the db and before it is returned to the template
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value (mixed) the value which was loaded from the database
* @param $post_id (mixed) the $post_id from which the value was loaded
* @param $field (array) the field array holding all the field options
*
* @return $value (mixed) the modified value
*/
function format_value( $value, $post_id, $field )
{
if ( ! $value OR empty( $value ) )
{
return false;
}
if ( is_array( $value ) && ! empty( $value ) )
{
$form_objects = array();
foreach ( $value as $k => $v )
{
$form = GFAPI::get_form( $v );
if ( ! is_wp_error( $form ) )
{
$form_objects[$k] = $form;
}
}
return ( ! empty( $form_objects ) ) ? $form_objects : false;
}
else
{
$form = GFAPI::get_form( intval( $value ) );
return ( ! is_wp_error( $form ) ) ? $form : false;
}
}
}
new acf_field_gravity_forms();