Überprüfen Sie, ob der Post-Titel vorhanden ist. Fügen Sie einen Post ein, wenn dies nicht der Fall ist

Ich habe bereits eine Funktion, bei der ein Benutzer ein Formular sendet und einen benutzerdefinierten Beitrag erstellt ...

<?php $postTitle = $_POST['post_title'];
$submit = $_POST['submit'];

if(isset($submit)){

    global $user_ID;

    $new_post = array(
        'post_title' => $postTitle,
        'post_content' => '',
        'post_status' => 'publish',
        'post_date' => date('Y-m-d H:i:s'),
        'post_author' => '',
        'post_type' => 'stuff',
        'post_category' => array(0)
    );

    $post_id = wp_insert_post($new_post);
add_post_meta($post_id, 'times', '1');

}

Ich möchte überprüfen, ob der Titel des benutzerdefinierten Beitrags vorhanden ist. Wenn dies NICHT der Fall ist, erstellen Sie den Beitrag mit der Nummer 1 im Metafeld. Wenn er vorhanden ist, fügen Sie einfach 1 zum Metafeld hinzu

Dies würde eine Abfrage erfordern.

Bauen Sie also auf Ihrem Code auf:

<?php
$postTitle = $_POST['post_title'];
$submit = $_POST['submit'];

if(isset($submit)){

    global $user_ID, $wpdb;

    $query = $wpdb->prepare(
        'SELECT ID FROM ' . $wpdb->posts . '
        WHERE post_title = %s
        AND post_type = \'stuff\'',
        $postTitle
    );
    $wpdb->query( $query );

    if ( $wpdb->num_rows ) {
        $post_id = $wpdb->get_var( $query );
        $meta = get_post_meta( $post_id, 'times', TRUE );
        $meta++;
        update_post_meta( $post_id, 'times', $meta );
    } else {
        $new_post = array(
            'post_title' => $postTitle,
            'post_content' => '',
            'post_status' => 'publish',
            'post_date' => date('Y-m-d H:i:s'),
            'post_author' => '',
            'post_type' => 'stuff',
            'post_category' => array(0)
        );

        $post_id = wp_insert_post($new_post);
        add_post_meta($post_id, 'times', '1');
    }
}

Sollte es tun

Eine aktuellere Methode kann die folgende post_exists()Funktion verwenden:

if( isset( $_POST['submit'] ) ){

   $post_title = sanitize_title( $_POST['post_title'] );

   $new_post = array(
       'post_title' => $post_title,
       'post_content' => '',
       'post_status' => 'publish',
       'post_date' => date('Y-m-d H:i:s'),
       'post_author' => '',
       'post_type' => 'stuff',
       'post_category' => array(0)
   );

   $post_id = post_exists( $post_title ) or wp_insert_post( $new_post );

   update_post_meta( $post_id, 'times', '1' );

}

Sie können die Funktion get_page_by_title () von WordPress verwenden:

<?php $postTitle = $_POST['post_title'];
$submit = $_POST['submit'];


if(isset($submit)){
    $customPost = get_page_by_title($postTitle, OBJECT, 'stuff');

    if(!is_null($customPost)) {
       $meta = get_post_meta($customPost->ID, 'times', true);
       $meta++;
       update_post_meta($customPost->ID, 'times', $meta);

       return
    }

    global $user_ID;

    $new_post = array(
        'post_title' => $postTitle,
        'post_content' => '',
        'post_status' => 'publish',
        'post_date' => date('Y-m-d H:i:s'),
        'post_author' => '',
        'post_type' => 'stuff',
        'post_category' => array(0)
    );

    $post_id = wp_insert_post($new_post);
    add_post_meta($post_id, 'times', '1');

}

@ Tim Hallman nette Antwort. Verwenden Sie die Funktion post_exists () , um zu überprüfen, ob ein Beitrag vorhanden ist oder nicht. Weitere Informationen finden Sie unter https://developer.wordpress.org/reference/

Sie können dies anhand der ID tun

$post_title = "This Awesome Title";
$post_content = "My content of something cool.";
$post_status = "publish"; //publish, draft, etc
$post_type = "page" // or whatever post type desired

/* Attempt to find post id by post name if it exists */
$found_post_title = get_page_by_title( $post_title, OBJECT, $post_type );
$found_post_id = $found_post_title->ID;

/**********************************************************
** Check If Page does not exist, if true, create a new post 
************************************************************/
if ( FALSE === get_post_status( $found_post_id ) ): 

      $post_args = array(
        'post_title' => $post_title,
        'post_type' => $post_type,
        'post_content'=> $post_content,
        'post_status'  => $post_status,
        //'post_author'  => get_current_user_id(),

        /* If you have meta fields to enter data into */ 
        'meta_input'   => array(
            'meta_key1' => 'my value',
            'meta_key2' => 'my other value',
        ),
      );      


      /* Add a new wp post into db, return it's post id */
      $returned_post_id = wp_insert_post( $post_args );  

      /* Update page template only if using "page" as the post_type */ 
      update_post_meta( $returned_post_id, '_wp_page_template', 'my-page-template.php' ); 

      /* Add values into meta fields. Work with ACF CUSTOM FIELDS!! */
      $field_key = "My_Field_KEY";
      $value = "my custom value";
      update_field( $field_key, $value, $returned_post_id );

      $field_key = "My_Other_Field_KEY";
      $value = "my other custom value";
      update_field( $field_key, $value, $returned_post_id );

      /* Save a checkbox or select value */
      // $field_key = "My_Field_KEY";
      // $value = array("red", "blue", "yellow");
      // update_field( $field_key, $value, $returned_post_id );

      /* Save to a repeater field value */
      // $field_key = "My_Field_KEY";
      // $value = array(
      //   array(
      //     "ss_name" => "Foo",
      //     "ss_type" => "Bar"
      //   )
      // );
      // update_field( $field_key, $value, $returned_post_id );

      /* Echo a response! */
      echo "<span class='pg-new'><strong>". $post_title . " Created!</strong></span><br>";
      echo "<a href='".esc_url( get_permalink($returned_post_id) )."' target='_Blank'>". $post_title . "</a><p>";


else:        
/***************************
** IF POST EXISTS, update it 
****************************/

      /* Update post */
      $update_post_args = array(
        'ID'           => $found_post_id,
        'post_title'   => $post_title,
        'post_content' => $post_content,
      );

      /* Update the post into the database */
      wp_update_post( $update_post_args );

      /* Update values into meta fields */
      $field_key = "My_Field_KEY";
      $value = "my custom value";
      update_field( $field_key, $value, $found_post_id );

      $field_key = "My_Other_Field_KEY";
      $value = "my other custom value";
      update_field( $field_key, $value, $found_post_id );

      /* Echo a response! */
      echo "<span class='pg-update'><strong>". $post_title . " Updated!</strong></span><br>"; 
      echo "<a href='".esc_url( get_permalink($found_post_id) )."' target='_Blank'>View</a> | <a href='post.php?post=".$found_post_id."&action=edit'>". $post_title . "</a><p>";

endif;

WordPress prüft, ob der Beitrag nach Titel existiert

function wp_exist_post_by_title( $title ) {
    global $wpdb;
    $return = $wpdb->get_row( "SELECT ID FROM wp_posts WHERE post_title = '" . $title . "' && post_status = 'publish' && post_type = 'post' ", 'ARRAY_N' );
    if( empty( $return ) ) {
        return false;
    } else {
        return true;
    }
}

// usage
if( wp_exist_post_by_title( $post->name ) ) {
// post exist
} else { 
// post does not exist
}