Wordpress 自定义 post 类型
Wordpress custom post types
<?php
/*
Plugin Name: Opportunities
Description: Custom Post Types for "The Oppourtunities Blog" website.
Author: Sheju
Author URI: http://www.localhost.com
*/
if( ! function_exists( 'Opportunity_create_post_type' ) ) :
function Opportunity_create_post_type() {
$labels = array(
'name' => __( 'Opportunity' ),
'singular_name' => __( 'Opportunity' ),
'add_new' => __( 'Add New Opportunity' ),
'all_items' => __( 'All Opportunities' ),
'add_new_item' => __( 'Add New Opportunity' ),
'edit_item' => __( 'Edit Opportunity' ),
'new_item' => __( 'New Opportunity' ),
'view_item' => __( 'View Opportunity' ),
'search_items' => __( 'Search Opportunities' ),
'not_found' => __( 'No Opportunities found' ),
'not_found_in_trash' => __( 'No Opportunities found in trash' ),
'parent_item_colon' => __( 'Parent Opportunity' )
//'menu_name' => default to 'name'
);
$args = array(
'labels' => $labels,
'public' => true,
'has_archive' => true,
'publicly_queryable' => true,
'query_var' => true,
'rewrite' => true,
'capability_type' => 'post',
'hierarchical' => false,
'supports' => array(
'title',
'editor',
'excerpt',
//'thumbnail',
//'author',
//'trackbacks',
//'custom-fields',
//'comments',
'revisions',
//'page-attributes', // (menu order, hierarchical must be true to show Parent option)
//'post-formats',
),
'taxonomies' => array( 'category', 'post_tag' ), // add default post categories and tags
'menu_position' => 5,
'register_meta_box_cb' => 'Opportunity_add_post_type_metabox'
);
register_post_type( 'Opportunity', $args );
//flush_rewrite_rules();
register_taxonomy( 'Opportunity_category', // register custom taxonomy - Opportunity category
'Opportunity',
array( 'hierarchical' => true,
'label' => __( 'Opportunity categories' )
)
);
register_taxonomy( 'Opportunity_tag', // register custom taxonomy - Opportunity tag
'Opportunity',
array( 'hierarchical' => false,
'label' => __( 'Opportunity tags' )
)
);
}
add_action( 'init', 'Opportunity_create_post_type' );
function Opportunity_add_post_type_metabox() { // add the meta box
add_meta_box( 'Opportunity_metabox', 'More Details about Opportunity', 'Opportunity_metabox', 'Opportunity', 'normal' );
}
function Opportunity_metabox() {
global $post;
// Noncename needed to verify where the data originated
echo '<input type="hidden" name="Opportunity_post_noncename" id="Opportunity_post_noncename" value="' . wp_create_nonce( plugin_basename(__FILE__) ) . '" />';
// Get the data if its already been entered
$Opportunity_post_name = get_post_meta($post->ID, '_Opportunity_post_name', true);
$Opportunity_post_desc = get_post_meta($post->ID, '_Opportunity_post_desc', true);
$Opportunity_post_duration = get_post_meta($post->ID, '_Opportunity_post_duration', true);
// Echo out the field
?>
<div class="width_full p_box">
<p>
<label>Name<br>
<input type="text" name="Opportunity_post_name" class="widefat" value="<?php echo $Opportunity_post_name; ?>">
</label>
</p>
<p><label>Description<br>
<textarea name="Opportunity_post_desc" class="widefat"><?php echo $Opportunity_post_desc; ?></textarea>
</label>
</p>
<p><label>Duration<br>
<textarea name="Opportunity_post_duration" class="widefat"><?php echo $Opportunity_post_duration; ?></textarea>
</label>
</p>
</div>
<?php
}
function Opportunity_post_save_meta( $post_id, $post ) { // save the data
// verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if( !wp_verify_nonce( $_POST['Opportunity_post_noncename'], plugin_basename(__FILE__) ) ) {
return $post->ID;
}
// is the user allowed to edit the post or page?
if( ! current_user_can( 'edit_post', $post->ID )){
return $post->ID;
}
// ok, we're authenticated: we need to find and save the data
// we'll put it into an array to make it easier to loop though
$Opportunity_post_meta['_Opportunity_post_name'] = $_POST['Opportunity_post_name'];
$Opportunity_post_meta['_Opportunity_post_desc'] = $_POST['Opportunity_post_desc'];
$Opportunity_post_meta['_Opportunity_post_duration'] = $_POST['Opportunity_post_duration'];
// add values as custom fields
foreach( $Opportunity_post_meta as $key => $value ) { // cycle through the $Opportunity_post_meta array
// if( $post->post_type == 'revision' ) return; // don't store custom data twice
$value = implode(',', (array)$value); // if $value is an array, make it a CSV (unlikely)
if( get_post_meta( $post->ID, $key, FALSE ) ) { // if the custom field already has a value
update_post_meta($post->ID, $key, $value);
} else { // if the custom field doesn't have a value
add_post_meta( $post->ID, $key, $value );
}
if( !$value ) { // delete if blank
delete_post_meta( $post->ID, $key );
}
}
}
add_action( 'save_post', 'Opportunity_post_save_meta', 1, 2 ); // save the custom fields
endif; // end of function_exists()
if( ! function_exists( 'view_Opportunities_posts' ) ) : // output
function view_Opportunities_posts( $num = 4, $do_shortcode = 1, $strip_shortcodes = 0 ) {
$args = array(
'numberposts' => $num,
'offset' => 0,
//'category' => ,
'orderby' => 'menu_order, post_title', // post_date, rand
'order' => 'DESC',
//'include' => ,
//'exclude' => ,
//'meta_key' => ,
//'meta_value' => ,
'post_type' => 'Opportunity',
//'post_mime_type' => ,
//'post_parent' => ,
'post_status' => 'publish',
'suppress_filters' => true
);
$posts = get_posts( $args );
$html = '';
foreach ( $posts as $post ) {
$meta_name = get_post_meta( $post->ID, '_echo"test"'.'_Opportunity_post_name', true );
$meta_desc = get_post_meta( $post->ID, '_Opportunity_post_desc', true );
$meta_duration = get_post_meta( $post->ID, '_Opportunity_post_duration', true );
/*if (!empty($meta_duration) && !empty($$meta_duration['_Opportunity_post_duration']));
*/
/*<?php $my_meta = get_post_meta($post->ID,'_my_meta',TRUE); ?>
<?php if (!empty($my_meta) && !empty($my_meta['image_one'])): ?>
<div class="archive_images_one"><a href="<? echo $my_meta['image_one']; ?>" title="<? echo $my_meta['image_one_lightbox_title']; ?>" rel="lightbox"><img border="0" width="300px" height="200px" src="<? echo $my_meta['image_one']; ?>" alt="Android and iPhone App Development"></a></div>
<?php endif; ?>*/
//$img = get_the_post_thumbnail( $post->ID, 'medium' );
// if( empty( $img ) ) {
// $img = '<img src="'.plugins_url( '/img/default.png', __FILE__ ).'">';
// }
//
//
// if( has_post_thumbnail( $post->ID ) ) {
// //$image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail' );
// //$img_url = $image[0];
// $img = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'thumbnail' );
// $img_url = $img[0];
//
// //the_post_thumbnail( 'thumbnail' ); /* thumbnail, medium, large, full, thumb-100, thumb-200, thumb-400, array(100,100) */
// }
//
$content = $post->post_content;
if( $do_shortcode == 1 ) {
$content = do_shortcode( $content );
}
if( $strip_shortcodes == 1 ) {
$content = strip_shortcodes( $content );
}
$html .= '
<div>
<h3>'.$post->post_title.'</h3>
<div>'.$content.'</div>
<div>
<p>'.$meta_name.'</p>
<p>'.$meta_desc.'</p>
<p>'.$meta_duration.'</p>
</div>
</div>
';
}
$html = '<div class="wrapper">'.$html.'</div>';
return $html;
}
endif; // end of function_exists()
?>
仅当存在值时，我才需要为输出中的元字段添加自定义标签。请大家帮忙做一下。
我尝试更改最后的 p 标签（类似这样）：
<h3>'.$post->post_title.'</h3>
<div>
<p>Name: '.$meta_name.'</p>
<p>Description: '.$meta_desc.'</p>
</div>
<div>'.$img.'</div>
<div>'.$content.'</div>
不是 100% 确定我理解您的需求，但是如果您只想显示某些具有价值的元数据，您可以这样做：
$html .= '<div>';
$html .= '<h3>' . $post->post_title . '</h3>';
$html .= '<div>' . $content . '</div>';
$html .= '<div>';
if( !empty($meta_name) ) {
$html .= '<p>' . $meta_name . '</p>';
}
if( !empty($meta_desc) ) {
$html .= '<p>' . $meta_desc . '</p>';
}
if( !empty($meta_duration) ) {
$html .= '<p>' . $meta_duration . '</p>';
}
$html .= '</div>';
$html .= '</div>';
<?php
/*
Plugin Name: Opportunities
Description: Custom Post Types for "The Oppourtunities Blog" website.
Author: Sheju
Author URI: http://www.localhost.com
*/
if( ! function_exists( 'Opportunity_create_post_type' ) ) :
function Opportunity_create_post_type() {
$labels = array(
'name' => __( 'Opportunity' ),
'singular_name' => __( 'Opportunity' ),
'add_new' => __( 'Add New Opportunity' ),
'all_items' => __( 'All Opportunities' ),
'add_new_item' => __( 'Add New Opportunity' ),
'edit_item' => __( 'Edit Opportunity' ),
'new_item' => __( 'New Opportunity' ),
'view_item' => __( 'View Opportunity' ),
'search_items' => __( 'Search Opportunities' ),
'not_found' => __( 'No Opportunities found' ),
'not_found_in_trash' => __( 'No Opportunities found in trash' ),
'parent_item_colon' => __( 'Parent Opportunity' )
//'menu_name' => default to 'name'
);
$args = array(
'labels' => $labels,
'public' => true,
'has_archive' => true,
'publicly_queryable' => true,
'query_var' => true,
'rewrite' => true,
'capability_type' => 'post',
'hierarchical' => false,
'supports' => array(
'title',
'editor',
'excerpt',
//'thumbnail',
//'author',
//'trackbacks',
//'custom-fields',
//'comments',
'revisions',
//'page-attributes', // (menu order, hierarchical must be true to show Parent option)
//'post-formats',
),
'taxonomies' => array( 'category', 'post_tag' ), // add default post categories and tags
'menu_position' => 5,
'register_meta_box_cb' => 'Opportunity_add_post_type_metabox'
);
register_post_type( 'Opportunity', $args );
//flush_rewrite_rules();
register_taxonomy( 'Opportunity_category', // register custom taxonomy - Opportunity category
'Opportunity',
array( 'hierarchical' => true,
'label' => __( 'Opportunity categories' )
)
);
register_taxonomy( 'Opportunity_tag', // register custom taxonomy - Opportunity tag
'Opportunity',
array( 'hierarchical' => false,
'label' => __( 'Opportunity tags' )
)
);
}
add_action( 'init', 'Opportunity_create_post_type' );
function Opportunity_add_post_type_metabox() { // add the meta box
add_meta_box( 'Opportunity_metabox', 'More Details about Opportunity', 'Opportunity_metabox', 'Opportunity', 'normal' );
}
function Opportunity_metabox() {
global $post;
// Noncename needed to verify where the data originated
echo '<input type="hidden" name="Opportunity_post_noncename" id="Opportunity_post_noncename" value="' . wp_create_nonce( plugin_basename(__FILE__) ) . '" />';
// Get the data if its already been entered
$Opportunity_post_name = get_post_meta($post->ID, '_Opportunity_post_name', true);
$Opportunity_post_desc = get_post_meta($post->ID, '_Opportunity_post_desc', true);
$Opportunity_post_duration = get_post_meta($post->ID, '_Opportunity_post_duration', true);
// Echo out the field
?>
<div class="width_full p_box">
<p>
<label>Name<br>
<input type="text" name="Opportunity_post_name" class="widefat" value="<?php echo $Opportunity_post_name; ?>">
</label>
</p>
<p><label>Description<br>
<textarea name="Opportunity_post_desc" class="widefat"><?php echo $Opportunity_post_desc; ?></textarea>
</label>
</p>
<p><label>Duration<br>
<textarea name="Opportunity_post_duration" class="widefat"><?php echo $Opportunity_post_duration; ?></textarea>
</label>
</p>
</div>
<?php
}
function Opportunity_post_save_meta( $post_id, $post ) { // save the data
// verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if( !wp_verify_nonce( $_POST['Opportunity_post_noncename'], plugin_basename(__FILE__) ) ) {
return $post->ID;
}
// is the user allowed to edit the post or page?
if( ! current_user_can( 'edit_post', $post->ID )){
return $post->ID;
}
// ok, we're authenticated: we need to find and save the data
// we'll put it into an array to make it easier to loop though
$Opportunity_post_meta['_Opportunity_post_name'] = $_POST['Opportunity_post_name'];
$Opportunity_post_meta['_Opportunity_post_desc'] = $_POST['Opportunity_post_desc'];
$Opportunity_post_meta['_Opportunity_post_duration'] = $_POST['Opportunity_post_duration'];
// add values as custom fields
foreach( $Opportunity_post_meta as $key => $value ) { // cycle through the $Opportunity_post_meta array
// if( $post->post_type == 'revision' ) return; // don't store custom data twice
$value = implode(',', (array)$value); // if $value is an array, make it a CSV (unlikely)
if( get_post_meta( $post->ID, $key, FALSE ) ) { // if the custom field already has a value
update_post_meta($post->ID, $key, $value);
} else { // if the custom field doesn't have a value
add_post_meta( $post->ID, $key, $value );
}
if( !$value ) { // delete if blank
delete_post_meta( $post->ID, $key );
}
}
}
add_action( 'save_post', 'Opportunity_post_save_meta', 1, 2 ); // save the custom fields
endif; // end of function_exists()
if( ! function_exists( 'view_Opportunities_posts' ) ) : // output
function view_Opportunities_posts( $num = 4, $do_shortcode = 1, $strip_shortcodes = 0 ) {
$args = array(
'numberposts' => $num,
'offset' => 0,
//'category' => ,
'orderby' => 'menu_order, post_title', // post_date, rand
'order' => 'DESC',
//'include' => ,
//'exclude' => ,
//'meta_key' => ,
//'meta_value' => ,
'post_type' => 'Opportunity',
//'post_mime_type' => ,
//'post_parent' => ,
'post_status' => 'publish',
'suppress_filters' => true
);
$posts = get_posts( $args );
$html = '';
foreach ( $posts as $post ) {
$meta_name = get_post_meta( $post->ID, '_echo"test"'.'_Opportunity_post_name', true );
$meta_desc = get_post_meta( $post->ID, '_Opportunity_post_desc', true );
$meta_duration = get_post_meta( $post->ID, '_Opportunity_post_duration', true );
/*if (!empty($meta_duration) && !empty($$meta_duration['_Opportunity_post_duration']));
*/
/*<?php $my_meta = get_post_meta($post->ID,'_my_meta',TRUE); ?>
<?php if (!empty($my_meta) && !empty($my_meta['image_one'])): ?>
<div class="archive_images_one"><a href="<? echo $my_meta['image_one']; ?>" title="<? echo $my_meta['image_one_lightbox_title']; ?>" rel="lightbox"><img border="0" width="300px" height="200px" src="<? echo $my_meta['image_one']; ?>" alt="Android and iPhone App Development"></a></div>
<?php endif; ?>*/
//$img = get_the_post_thumbnail( $post->ID, 'medium' );
// if( empty( $img ) ) {
// $img = '<img src="'.plugins_url( '/img/default.png', __FILE__ ).'">';
// }
//
//
// if( has_post_thumbnail( $post->ID ) ) {
// //$image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail' );
// //$img_url = $image[0];
// $img = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'thumbnail' );
// $img_url = $img[0];
//
// //the_post_thumbnail( 'thumbnail' ); /* thumbnail, medium, large, full, thumb-100, thumb-200, thumb-400, array(100,100) */
// }
//
$content = $post->post_content;
if( $do_shortcode == 1 ) {
$content = do_shortcode( $content );
}
if( $strip_shortcodes == 1 ) {
$content = strip_shortcodes( $content );
}
$html .= '
<div>
<h3>'.$post->post_title.'</h3>
<div>'.$content.'</div>
<div>
<p>'.$meta_name.'</p>
<p>'.$meta_desc.'</p>
<p>'.$meta_duration.'</p>
</div>
</div>
';
}
$html = '<div class="wrapper">'.$html.'</div>';
return $html;
}
endif; // end of function_exists()
?>
仅当存在值时，我才需要为输出中的元字段添加自定义标签。请大家帮忙做一下。
我尝试更改最后的 p 标签（类似这样）：
<h3>'.$post->post_title.'</h3>
<div>
<p>Name: '.$meta_name.'</p>
<p>Description: '.$meta_desc.'</p>
</div>
<div>'.$img.'</div>
<div>'.$content.'</div>
不是 100% 确定我理解您的需求，但是如果您只想显示某些具有价值的元数据，您可以这样做：
$html .= '<div>';
$html .= '<h3>' . $post->post_title . '</h3>';
$html .= '<div>' . $content . '</div>';
$html .= '<div>';
if( !empty($meta_name) ) {
$html .= '<p>' . $meta_name . '</p>';
}
if( !empty($meta_desc) ) {
$html .= '<p>' . $meta_desc . '</p>';
}
if( !empty($meta_duration) ) {
$html .= '<p>' . $meta_duration . '</p>';
}
$html .= '</div>';
$html .= '</div>';