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<?php

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add_action( 'wpcf7_upgrade', 'wpcf7_upgrade_58', 10, 2 );

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/**

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* Runs functions necessary when upgrading from old plugin versions before 5.8.

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* @since 5.8.0 New `_config_validation` post meta is introduced.

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function wpcf7_upgrade_58( $new_ver, $old_ver ) {

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if ( ! version_compare( $old_ver, '5.8-dev', '<' ) ) {

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return;

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}

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$posts = WPCF7_ContactForm::find( array(

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'post_status' => 'any',

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'posts_per_page' => -1,

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) );

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foreach ( $posts as $post ) {

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$post_id = $post->id();

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// Delete the old post meta for config-validation results.

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delete_post_meta( $post_id, '_config_errors' );

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// Add the contact form hash.

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add_post_meta( $post_id, '_hash',

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wpcf7_generate_contact_form_hash( $post_id ),

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true // Unique

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);

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}

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}

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add_action( 'wpcf7_upgrade', 'wpcf7_convert_to_cpt', 10, 2 );

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/**

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* Converts old data in the dedicated database table to custom posts.

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* @since 3.0.0 `wpcf7_contact_form` CPT is introduced.

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function wpcf7_convert_to_cpt( $new_ver, $old_ver ) {

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global $wpdb;

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if ( ! version_compare( $old_ver, '3.0-dev', '<' ) ) {

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return;

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}

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$old_rows = array();

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$table_name = $wpdb->prefix . "contact_form_7";

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if ( $wpdb->get_var( "SHOW TABLES LIKE '$table_name'" ) ) {

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$old_rows = $wpdb->get_results( "SELECT * FROM $table_name" );

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} elseif ( $opt = get_option( 'wpcf7' )

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and ! empty( $opt['contact_forms'] ) ) {

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foreach ( (array) $opt['contact_forms'] as $key => $value ) {

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$old_rows[] = (object) array_merge(

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$value,

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array( 'cf7_unit_id' => $key )

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);

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}

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}

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foreach ( (array) $old_rows as $row ) {

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$q = "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_old_cf7_unit_id'"

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. $wpdb->prepare( " AND meta_value = %d", $row->cf7_unit_id );

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if ( $wpdb->get_var( $q ) ) {

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continue;

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}

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$postarr = array(

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'post_type' => 'wpcf7_contact_form',

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'post_status' => 'publish',

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'post_title' => maybe_unserialize( $row->title ),

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);

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$post_id = wp_insert_post( $postarr );

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if ( $post_id ) {

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update_post_meta( $post_id, '_old_cf7_unit_id', $row->cf7_unit_id );

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$metas = array(

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'form',

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'mail',

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'mail_2',

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'messages',

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'additional_settings',

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);

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foreach ( $metas as $meta ) {

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update_post_meta( $post_id, '_' . $meta,

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wpcf7_normalize_newline_deep( maybe_unserialize( $row->{$meta} ) )

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);

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}

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}

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}

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}

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add_action( 'wpcf7_upgrade', 'wpcf7_prepend_underscore', 10, 2 );

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/**

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* Prepends an underscore to post meta keys.

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function wpcf7_prepend_underscore( $new_ver, $old_ver ) {

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if ( version_compare( $old_ver, '3.0-dev', '<' ) ) {

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return;

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}

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if ( ! version_compare( $old_ver, '3.3-dev', '<' ) ) {

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return;

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}

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$posts = WPCF7_ContactForm::find( array(

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'post_status' => 'any',

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'posts_per_page' => -1,

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) );

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foreach ( $posts as $post ) {

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$props = $post->get_properties();

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foreach ( $props as $prop => $value ) {

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if ( metadata_exists( 'post', $post->id(), '_' . $prop ) ) {

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continue;

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}

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update_post_meta( $post->id(), '_' . $prop, $value );

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delete_post_meta( $post->id(), $prop );

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}

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}

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}

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