Come aggiungere campi personalizzati a un tipo di articolo personalizzato?

Questo èprobabilmentepiù complicato di quantopensi,vorreiesaminare l'utilizzo di unframework:

• http://wpgear.org/#meta-fields

Se vuoi scriverne unotuo,ecco alcunitutorial decenti:

• http://net.tutsplus.com/tutorials/wordpress/creazione-di-campi-personalizzati-per-allegati-in-wordpress/
• http://sltaylor.co.uk/blog/control-your-proprio-wordpress-campi-personalizzati/
• http://thinkvitamin.com/code/create-your-first-wordpress-custom-post-type/

This is probably more complicated than you think, I would look into using a framework:

• http://wpgear.org/#meta-fields

If you want to write your own , here are some decent tutorials:

• http://net.tutsplus.com/tutorials/wordpress/creating-custom-fields-for-attachments-in-wordpress/
• http://sltaylor.co.uk/blog/control-your-own-wordpress-custom-fields/
• http://thinkvitamin.com/code/create-your-first-wordpress-custom-post-type/

Aggiungi/modifica l'argomento supports (mentre usi register_post_type)perincluderei custom-fieldsnella schermata dimodifica delpost deltuotipo dipostpersonalizzato:

 'supports' => array( 
  'title', 
  'editor', 
  'excerpt', 
  'thumbnail', 
  'custom-fields', 
  'revisions' 
)
 

Fonte: https://codex.wordpress.org/Using_Custom_Fields#Displaying_Custom_Fields

Add/edit the supports argument ( while using register_post_type ) to include the custom-fields to post edit screen of you custom post type:

'supports' => array( 
  'title', 
  'editor', 
  'excerpt', 
  'thumbnail', 
  'custom-fields', 
  'revisions' 
)

Source: https://codex.wordpress.org/Using_Custom_Fields#Displaying_Custom_Fields

Anche se dovresti aggiungere unpo 'di convalida,questa azionenon sembraessere complicataper la versione corrente di WordPress.

Fondamentalmente sononecessari duepassaggiper aggiungere un campopersonalizzato a untipo di articolopersonalizzato:

1. Crea unmetabox che contengailtuo campopersonalizzato
2. Salvailtuo campopersonalizzatonel database

Questipassaggi sono descritti a livelloglobale qui: http://wordpress.org/support/topic/is-it-possible-to-add-an-extra-field-to-a-custom-post-type

Esempio:

Aggiungi un campopersonalizzato chiamato "funzione" a untipo dipostpersonalizzato denominato "prefix-teammembers".

Perprima cosa aggiungiilmetabox:

 function prefix_teammembers_metaboxes( ) {
   global $wp_meta_boxes;
   add_meta_box('postfunctiondiv', __('Function'), 'prefix_teammembers_metaboxes_html', 'prefix_teammembers', 'normal', 'high');
}
add_action( 'add_meta_boxes_prefix-teammembers', 'prefix_teammembers_metaboxes' );
 

Se aggiungi omodifichi un "prefix-teammembers",viene attivato l'hook add_meta_boxes_{custom_post_type}. Vedere http://codex.wordpress.org/Function_Reference/add_meta_box per add_meta_box()funzione. Nella chiamataprecedente di add_meta_box() è prefix_teammembers_metaboxes_html,una richiamataper aggiungereil campo delmodulo:

 function prefix_teammembers_metaboxes_html()
{
    global $post;
    $custom = get_post_custom($post->ID);
    $function = isset($custom["function"][0])?$custom["function"][0]:'';
?>
    <label>Function:</label><input name="function" value="<?php echo $function; ?>">
<?php
}
 

Nel secondopassaggio haiiltuo campopersonalizzatonel database. Quando si salva l'hook save_post_{custom_post_type} viene attivato (dalla v 3.7,vedere: https://stackoverflow.com/questions/5151409/wordpress-save-post-action-for-custom-posts ). Puoi agganciarloper salvareiltuo campopersonalizzato:

 function prefix_teammembers_save_post()
{
    if(empty($_POST)) return; //why is prefix_teammembers_save_post triggered by add new? 
    global $post;
    update_post_meta($post->ID, "function", $_POST["function"]);
}   

add_action( 'save_post_prefix-teammembers', 'prefix_teammembers_save_post' );   
 

Although you should have to add some validation, this action does not seem to be complicated for the current version of WordPress.

Basically you need two steps to add a Custom Field to a Custom Post Type:

1. Create a metabox which holds your Custom Field
2. Save your Custom Field to the database

These steps are globally described here: http://wordpress.org/support/topic/is-it-possible-to-add-an-extra-field-to-a-custom-post-type

Example:

Add a Custom Field called "function" to a Custom Post Type called "prefix-teammembers".

First add the metabox:

function prefix_teammembers_metaboxes( ) {
   global $wp_meta_boxes;
   add_meta_box('postfunctiondiv', __('Function'), 'prefix_teammembers_metaboxes_html', 'prefix_teammembers', 'normal', 'high');
}
add_action( 'add_meta_boxes_prefix-teammembers', 'prefix_teammembers_metaboxes' );

If your add or edit a "prefix-teammembers" the add_meta_boxes_{custom_post_type} hook is triggered. See http://codex.wordpress.org/Function_Reference/add_meta_box for the add_meta_box() function. In the above call of add_meta_box() is prefix_teammembers_metaboxes_html, a callback to add your form field:

function prefix_teammembers_metaboxes_html()
{
    global $post;
    $custom = get_post_custom($post->ID);
    $function = isset($custom["function"][0])?$custom["function"][0]:'';
?>
    <label>Function:</label><input name="function" value="<?php echo $function; ?>">
<?php
}

In the second step you have your custom field to the database. On saving the save_post_{custom_post_type} hook is triggered (since v 3.7, see: https://stackoverflow.com/questions/5151409/wordpress-save-post-action-for-custom-posts). You can hook this to save your custom field:

function prefix_teammembers_save_post()
{
    if(empty($_POST)) return; //why is prefix_teammembers_save_post triggered by add new? 
    global $post;
    update_post_meta($post->ID, "function", $_POST["function"]);
}   

add_action( 'save_post_prefix-teammembers', 'prefix_teammembers_save_post' );   

Esistono variplug-inpermetaboxe campipersonalizzati.Seguardi unpluginincentrato sugli sviluppatori,dovrestiprovare Meta Box .È leggeroe moltopotente.

Se stai cercando untutorial su come scrivere codiceper unmetabox/campipersonalizzati,allora questo è unbuoninizio.È laprimaparte di una serie chepotrebbe aiutarti aperfezionareil codiceper renderlopiùfacile daestendere.

There are various plugins for custom meta boxes and custom fields. If you look at a plugin that focuses on developers, then you should try Meta Box. It's lightweight and very powerful.

If you're looking for a tutorial on how to write code for a meta box / custom fields, then this is a good start. It's the first part of a series that might help you refine the code to make it easy to extend.

So che questa domanda è vecchia,ma hobisogno di ulterioriinformazioni sull'argomento

WordPress hail supportointegratoperi campipersonalizzati.Se hai untipo dipostpersonalizzato,tutto ciò di cui haibisogno èincludere "custom-fields" all'interno dell'array di supporto all'interno di register_post_type come risposto da @kubante

Nota che questa opzione è disponibile ancheperi tipi dipostnativi comei poste lepagine,devi solo attivarla

Ora questo campopersonalizzato èmolto semplicee accetta una stringa come valore.Inmolti casi vabene,maper campipiù complessi,ti consiglio di utilizzareilplug-in "Campipersonalizzati avanzati"

I know this question is old but for more info about the topic

WordPress has built-in support for custom fields. If you have a custom post type then all you need is to include 'custom-fields' inside the support array inside of register_post_type as answered by @kubante

Note that this option is also available for native post types like posts and pages you just need to turn it on

Now This custom field is very basic and accepts a string as a value. In many cases that's fine but for more complex fields, I advise that you use the 'Advanced Custom Fields' plugin

 // slider_metaboxes_html , function for create HTML 
function slider_metaboxes( ) {
   global $wp_meta_boxes;
   add_meta_box('postfunctiondiv', __('Custom link'), 'slider_metaboxes_html', 'slider', 'normal', 'high');
}

//add_meta_boxes_slider => add_meta_boxes_{custom post type}
add_action( 'add_meta_boxes_slider', 'slider_metaboxes' );
 

Conoscenzaperfetta

// slider_metaboxes_html , function for create HTML 
function slider_metaboxes( ) {
   global $wp_meta_boxes;
   add_meta_box('postfunctiondiv', __('Custom link'), 'slider_metaboxes_html', 'slider', 'normal', 'high');
}

//add_meta_boxes_slider => add_meta_boxes_{custom post type}
add_action( 'add_meta_boxes_slider', 'slider_metaboxes' );

Perfect knowledge