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<?php if ( ! defined( 'ABSPATH' ) ) exit;

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/**

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* Class NF_Abstracts_List

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abstract class NF_Abstracts_List extends NF_Abstracts_Field

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{

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protected $_name = '';

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protected $_section = 'common';

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protected $_type = 'list';

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protected $_test_value = FALSE;

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protected $_settings_all_fields = array(

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'key', 'label', 'label_pos', 'required', 'options', 'classes', 'admin_label', 'help', 'description'

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);

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public static $_base_template = 'list';

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public function __construct()

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{

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parent::__construct();

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add_filter( 'ninja_forms_custom_columns', array( $this, 'custom_columns' ), 10, 2 );

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add_filter( 'ninja_forms_render_options', array( $this, 'query_string_default' ), 10, 2 );

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}

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public function get_parent_type()

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{

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return 'list';

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}

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public function admin_form_element( $id, $value )

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{

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$form_id = get_post_meta( absint( $_GET[ 'post' ] ), '_form_id', true );

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$field = Ninja_Forms()->form( $form_id )->get_field( $id );

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$settings = $field->get_settings();

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$settings[ 'options' ] = apply_filters( 'ninja_forms_render_options', $settings[ 'options' ], $settings );

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$settings[ 'options' ] = apply_filters( 'ninja_forms_render_options_' . $field->get_setting( 'type' ), $settings[ 'options' ], $settings );

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$options = '<option>--</option>';

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if ( is_array( $settings[ 'options' ] ) ) {

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foreach( $settings[ 'options' ] as $option ){

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$selected = ( $value == $option[ 'value' ] ) ? "selected" : '';

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$options .= "<option value='" . esc_attr( $option[ 'value' ] ) . "' $selected>" . esc_html( $option[ 'label' ] ) . "</option>";

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}

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}

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return "<select class='widefat' name='fields[" . esc_attr( $id ) . "]' id=''>$options</select>";

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}

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* Appropriate output for a column cell in submissions list.

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public function custom_columns( $value, $field )

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{

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if( $this->_name != $field->get_setting( 'type' ) ) return $value;

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//Consider & to be the same as the & values in database in a selectbox saved value:

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if( ! is_array( $value ) ) $value = array( htmlspecialchars_decode($value) );

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$settings = $field->get_settings();

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$options = $field->get_setting( 'options' );

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$options = apply_filters( 'ninja_forms_render_options', $options, $settings );

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$options = apply_filters( 'ninja_forms_render_options_' . $field->get_setting( 'type' ), $options, $settings );

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$output = '';

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if( ! empty( $options ) ) {

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foreach ($options as $option) {

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if ( ! in_array( $option[ 'value' ], $value ) ) continue;

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$output .= esc_html( $option[ 'label' ] ) . "<br />";

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}

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}

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return $output;

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}

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public function query_string_default( $options, $settings )

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{

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if( ! isset( $settings[ 'key' ] ) ) return $options;

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$field_key = $settings[ 'key' ];

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if( ! isset( $_GET[ $field_key ] ) ) return $options;

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foreach( $options as $key => $option ){

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if( ! isset( $option[ 'value' ] ) ) continue;

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if( $option[ 'value' ] != $_GET[ $field_key ] ) continue;

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$options[ $key ][ 'selected' ] = 1;

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}

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return $options;

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}

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}

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