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<?php

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namespace Saltus\WP\Plugin\Saltus\InteractiveMaps\Plugin;

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/**

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* Wrapper for meta fields

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class Field {

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/**

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* Wrapper for get_post_meta.

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* Retrieve post meta field for a post.

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* @see get_post_meta

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* @param int $post_id Post ID.

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* @param string $key Optional. The meta key to retrieve. By default, returns

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* data for all keys. Default empty.

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* @param bool $single Optional. Whether to return a single value. Default false.

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* @return mixed Will be an array if $single is false. Will be value of meta data

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* field if $single is true.

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public static function get( int $post_id, string $key = '', bool $single = false ) {

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return get_post_meta( $post_id, $key, $single );

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}

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/**

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* Wrapper for get_post_meta.

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* Retrieve **all** post meta fields for a post.

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* @see get_post_meta

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* @param int $post_id Post ID.

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* @return array All the post meta values, in a multidimensional array.

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public static function get_all( int $post_id ) {

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return get_post_meta( $post_id );

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}

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/**

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* Parses the postmeta array, and returns a text value

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* @param array $postmeta A multidemensional array with meta fields

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* @param string $meta_key The key for the meta field

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* @return string The value for the supplied key, else empty if nothing found.

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public static function get_meta_text( array $postmeta, string $meta_key ) {

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$value = '';

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if ( ! empty( $postmeta[ $meta_key ][0] ) ) {

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$value = $postmeta[ $meta_key ][0];

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}

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return $value;

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}

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/**

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* Parses the postmeta array, and returns a image tag

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* @param array $postmeta A multidemensional array with meta fields

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* @param string $meta_key The key for the meta field

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* @param string $size Optional. An existing image size. Defaults to 'full'.

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* @return string A string with the img tag

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public static function get_meta_img( array $postmeta, string $meta_key, string $size = 'full' ) {

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$image_src = self::get_meta_img_src( $postmeta, $meta_key, $size );

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if ( empty( $image_src ) ) {

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return '';

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}

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$image_id = self::get_meta_img_id( $postmeta, $meta_key );

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$image_alt = '';

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if ( ! empty( $image_id ) ) {

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$image_alt = get_post_meta( $image_id, '_wp_attachment_image_alt', true );

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}

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return sprintf(

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'<img src="%1$s" alt="%2$s">',

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esc_url( $image_src ),

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esc_attr( $image_alt )

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);

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}

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/**

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* Parses the postmeta array, and returns an image id

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* @param array $postmeta A multidemensional array with meta fields

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* @param string $meta_key The key for the meta field

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* @return string The image id

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protected static function get_meta_img_id( array $postmeta, string $meta_key ) {

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$meta_key_id = $meta_key . '_id';

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if ( empty( $postmeta[ $meta_key_id ][0] ) ) {

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return '';

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}

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return $postmeta[ $meta_key_id ][0];

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}

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/**

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* Parses the postmeta array, and returns a image src.

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* @param array $postmeta A multidemensional array with meta fields

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* @param string $meta_key The key for the meta field

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* @param string $size Optional. An existing image size. Defaults to 'full'.

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* @return string A URL for the image src

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public static function get_meta_img_src( array $postmeta, string $meta_key, string $size = 'full' ) {

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$image_src = '';

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if ( empty( $postmeta[ $meta_key ][0] ) ) {

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return '';

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}

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// could be a remote or local file

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$image_src = $postmeta[ $meta_key ][0];

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// cmb2 stores the attachment full image url on the main key

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if ( $size === 'full' ) {

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return $image_src;

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}

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// cmb2 stores the attachment id with a different suffix, if local

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$image_id = self::get_meta_img_id( $postmeta, $meta_key );

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if ( empty( $image_id ) ) {

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return $image_src;

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}

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// check if if local file

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$image_src_maybe = wp_get_attachment_image_src( $image_id, $size );

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// if exists, return the src, at index 0

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if ( $image_src_maybe && isset( $image_src_maybe[0] ) ) {

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return $image_src_maybe[0];

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}

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return $image_src;

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}

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/**

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* Parses the postmeta array, and returns a image src.

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* @param array $postmeta A multidemensional array with meta fields

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* @param string $meta_key The key for the meta field

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* @param bool $single Optional. Expect just a single group

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* @return string The meta value, or empty if nothing found.

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public static function get_meta_group( array $postmeta, string $meta_key, bool $single = true ) {

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if ( empty( $postmeta[ $meta_key ][0] ) ) {

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return '';

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}

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if ( $single ) {

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return maybe_unserialize( $postmeta[ $meta_key ][0] );

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} else {

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return array_map( 'maybe_unserialize', $postmeta[ $meta_key ] );

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}

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}

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}

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