what I'm trying to do is add a new coloumn to Edit post page (done) and in that coloumn show data taken from a set of custom fields (partially done).
This is my code (I use it as a plugin so it simpler to modify it). It adds the metabox in posts so I can easily add custom fields.
<?php
// the plugin base directory
global $maismeta_base_dir;
$maismeta_base_dir = plugin_dir_url(__FILE__);
// Add the Meta Box
function add_custom_meta_box() {
add_meta_box(
'custom_meta_box', // $id
'Impostazioni di ricerca', // $title
'show_custom_meta_box', // $callback
'post', // $page
'normal', // $context
'high'); // $priority
}
add_action('add_meta_boxes', 'add_custom_meta_box');
// Field Array
$prefix = 'custom_';
$custom_meta_fields = array(
array (
'label' => __('Proprietario','maismeta'),
'desc' => __('Inserisci le informazioni sul proprietario.','maismeta'),
'id' => $prefix.'textarea_proprietario',
'type' => 'textarea',
),
array (
'label' => __('Sesso affittuario','maismeta'),
'desc' => __('Inserisci il sesso disponibile.','maismeta'),
'id' => $prefix.'checkbox_group_sesso',
'type' => 'checkbox_group',
'options' => array (
'Uomo' => array (
'label' => __('Uomo','maismeta'),
'value' => 'Uomo'
),
'Donna' => array (
'label' => __('Donna','maismeta'),
'value' => 'Donna'
),
'Altro' => array (
'label' => __('Altro','maismeta'),
'value' => 'Altro'
)
)
),
array (
'label' => __('Numero occupanti','maismeta'),
'desc' => __('Inserisci il numero degli occupanti.','maismeta'),
'id' => $prefix.'checkbox_group_occupanti',
'type' => 'checkbox_group',
'options' => array (
'1' => array (
'label' => __('1','maismeta'),
'value' => '1'
),
'2' => array (
'label' => __('2','maismeta'),
'value' => '2'
),
'3' => array (
'label' => __('3','maismeta'),
'value' => '3'
),
'4' => array (
'label' => __('4','maismeta'),
'value' => '4'
),
'5' => array (
'label' => __('5','maismeta'),
'value' => '5'
),
'6' => array (
'label' => __('6','maismeta'),
'value' => '6'
),
'7' => array (
'label' => __('7','maismeta'),
'value' => '7'
),
'8' => array (
'label' => __('8','maismeta'),
'value' => '8'
),
)
),
array (
'label' => __('Facoltà di riferimento','maismeta'),
'desc' => __('Scegli le facoltà di riferimento.','maismeta'),
'id' => $prefix.'checkbox_group_facolta',
'type' => 'checkbox_group',
'options' => array (
'Agraria' => array (
'label' => __('Agraria','maismeta'),
'value' => 'Agraria'
),
'Economia' => array (
'label' => __('Economia','maismeta'),
'value' => 'Economia'
),
'Farmacia' => array (
'label' => __('Farmacia','maismeta'),
'value' => 'Farmacia'
),
'Giurisprudenza' => array (
'label' => __('Giurisprudenza','maismeta'),
'value' => 'Giurisprudenza'
),
'Ingegneriea' => array (
'label' => __('Ingegneriea','maismeta'),
'value' => 'Ingegneriea'
),
'Lettere e Filosofia' => array (
'label' => __('Lettere e Filosofia','maismeta'),
'value' => 'Lettere e Filosofia'
),
'Lingue e letteratura straniera' => array (
'label' => __('Lingue e letteratura straniera','maismeta'),
'value' => 'Lingue e letteratura straniera'
),
'Medicina e chirurgia' => array (
'label' => __('Medicina e chirurgia','maismeta'),
'value' => 'Medicina e chirurgia'
),
'Scienze della formazione' => array (
'label' => __('Scienze della formazione','maismeta'),
'value' => 'Scienze della formazione'
),
'Scienze matematiche fisiche e naturali' => array (
'label' => __('Scienze matematiche fisiche e naturali','maismeta'),
'value' => 'Scienze matematiche fisiche e naturali'
),
'Scienze politiche' => array (
'label' => __('Scienze politiche','maismeta'),
'value' => 'Scienze politiche'
)
)
),
);
/* jQuery era qui */
// The Callback
function show_custom_meta_box() {
global $custom_meta_fields, $post;
// Use nonce for verification
echo '<input type="hidden" name="custom_meta_box_nonce" value="'.wp_create_nonce(basename(__FILE__)).'" />';
// Begin the field table and loop
echo '<table class="form-table">';
foreach ($custom_meta_fields as $field) {
// get value of this field if it exists for this post
$meta = get_post_meta($post->ID, $field['id'], true);
// begin a table row with
echo '<tr>
<th><label for="'.$field['id'].'">'.$field['label'].'</label></th>
<td>';
switch($field['type']) {
// text
case 'text':
echo '<input type="text" name="'.$field['id'].'" id="'.$field['id'].'" value="'.$meta.'" size="30" />
<br /><span class="description">'.$field['desc'].'</span>';
break;
// textarea
case 'textarea':
echo '<textarea name="'.$field['id'].'" id="'.$field['id'].'" cols="60" rows="4">'.$meta.'</textarea>
<br /><span class="description">'.$field['desc'].'</span>';
break;
// checkbox
case 'checkbox':
echo '<input type="checkbox" name="'.$field['id'].'" id="'.$field['id'].'" ',$meta ? ' checked="checked"' : '','/>
<label for="'.$field['id'].'">'.$field['desc'].'</label>';
break;
// select
case 'select':
echo '<select name="'.$field['id'].'" id="'.$field['id'].'">';
foreach ($field['options'] as $option) {
echo '<option', $meta == $option['value'] ? ' selected="selected"' : '', ' value="'.$option['value'].'">'.$option['label'].'</option>';
}
echo '</select><br /><span class="description">'.$field['desc'].'</span>';
break;
// radio
case 'radio':
foreach ( $field['options'] as $option ) {
echo '<input type="radio" name="'.$field['id'].'" id="'.$option['value'].'" value="'.$option['value'].'" ',$meta == $option['value'] ? ' checked="checked"' : '',' />
<label for="'.$option['value'].'">'.$option['label'].'</label><br />';
}
echo '<span class="description">'.$field['desc'].'</span>';
break;
// checkbox_group
case 'checkbox_group':
foreach ($field['options'] as $option) {
echo '<input type="checkbox" value="'.$option['value'].'" name="'.$field['id'].'[]" id="'.$option['value'].'"',$meta && in_array($option['value'], $meta) ? ' checked="checked"' : '',' />
<label for="'.$option['value'].'">'.$option['label'].'</label><br />';
}
echo '<span class="description">'.$field['desc'].'</span>';
break;
// tax_select
case 'tax_select':
echo '<select name="'.$field['id'].'" id="'.$field['id'].'">
<option value="">Select One</option>'; // Select One
$terms = get_terms($field['id'], 'get=all');
$selected = wp_get_object_terms($post->ID, $field['id']);
foreach ($terms as $term) {
if (!empty($selected) && !strcmp($term->slug, $selected[0]->slug))
echo '<option value="'.$term->slug.'" selected="selected">'.$term->name.'</option>';
else
echo '<option value="'.$term->slug.'">'.$term->name.'</option>';
}
$taxonomy = get_taxonomy($field['id']);
echo '</select><br /><span class="description"><a href="'.get_bloginfo('home').'/wp-admin/edit-tags.php?taxonomy='.$field['id'].'">Manage '.$taxonomy->label.'</a></span>';
break;
// post_list
case 'post_list':
$items = get_posts( array (
'post_type' => $field['post_type'],
'posts_per_page' => -1
));
echo '<select name="'.$field['id'].'" id="'.$field['id'].'">
<option value="">Select One</option>'; // Select One
foreach($items as $item) {
echo '<option value="'.$item->ID.'"',$meta == $item->ID ? ' selected="selected"' : '','>'.$item->post_type.': '.$item->post_title.'</option>';
} // end foreach
echo '</select><br /><span class="description">'.$field['desc'].'</span>';
break;
// date
case 'date':
echo '<input type="text" class="datepicker" name="'.$field['id'].'" id="'.$field['id'].'" value="'.$meta.'" size="30" />
<br /><span class="description">'.$field['desc'].'</span>';
break;
// slider
case 'slider':
$value = $meta != '' ? $meta : '0';
echo '<div id="'.$field['id'].'-slider"></div>
<input type="text" name="'.$field['id'].'" id="'.$field['id'].'" value="'.$value.'" size="5" />
<br /><span class="description">'.$field['desc'].'</span>';
break;
// image
global $secondazona;$secondazona = plugin_dir_url(__FILE__);
case 'image':
$zonaimmi = $secondazona.'images/image.png';
echo '<span class="custom_default_image" style="display:none">'.$zonaimmi.'</span>';
if ($meta) { $zonaimmi = wp_get_attachment_image_src($meta, 'medium'); $zonaimmi = $zonaimmi[0]; }
echo '<input name="'.$field['id'].'" type="hidden" class="custom_upload_image" value="'.$meta.'" />
<img src="'.$zonaimmi.'" class="custom_preview_image" alt="" /><br />
<input class="custom_upload_image_button button" type="button" value="Choose Image" />
<small> <a href="#" class="custom_clear_image_button">Remove Image</a></small>
<br clear="all" /><span class="description">'.$field['desc'].'</span>';
break;
// repeatable
case 'repeatable':
echo '<a class="repeatable-add button" href="#">+</a>
<ul id="'.$field['id'].'-repeatable" class="custom_repeatable">';
$i = 0;
if ($meta) {
foreach($meta as $row) {
echo '<li><span class="sort hndle">|||</span>
<input type="text" name="'.$field['id'].'['.$i.']" id="'.$field['id'].'" value="'.$row.'" size="30" />
<a class="repeatable-remove button" href="#">-</a></li>';
$i++;
}
} else {
echo '<li><span class="sort hndle">|||</span>
<input type="text" name="'.$field['id'].'['.$i.']" id="'.$field['id'].'" value="" size="30" />
<a class="repeatable-remove button" href="#">-</a></li>';
}
echo '</ul>
<span class="description">'.$field['desc'].'</span>';
break;
} //end switch
echo '</td></tr>';
} // end foreach
echo '</table>'; // end table
}
function remove_taxonomy_boxes() {
remove_meta_box('categorydiv', 'post', 'side');
}
add_action( 'admin_menu' , 'remove_taxonomy_boxes' );
// Save the Data
function save_custom_meta($post_id) {
global $custom_meta_fields;
// verify nonce
if (!wp_verify_nonce($_POST['custom_meta_box_nonce'], basename(__FILE__)))
return $post_id;
// check autosave
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
return $post_id;
// check permissions
if ('page' == $_POST['post_type']) {
if (!current_user_can('edit_page', $post_id))
return $post_id;
} elseif (!current_user_can('edit_post', $post_id)) {
return $post_id;
}
// loop through fields and save the data
foreach ($custom_meta_fields as $field) {
if($field['type'] == 'tax_select') continue;
$old = get_post_meta($post_id, $field['id'], true);
$new = $_POST[$field['id']];
if ($new && $new != $old) {
update_post_meta($post_id, $field['id'], $new);
} elseif ('' == $new && $old) {
delete_post_meta($post_id, $field['id'], $old);
}
} // enf foreach
// save taxonomies
$post = get_post($post_id);
$category = $_POST['category'];
wp_set_object_terms( $post_id, $category, 'category' );
}
add_action('save_post', 'save_custom_meta');
/* nuova posizione */
// enqueue scripts and styles, but only if is_admin
?>
As you can see I have 2 sets of checkboxes the first one with 3 possible values:
'Uomo','Donna','Altro' So the user can easily choose 1,2,3 or all the values.
Then I have this to show 2 more coloumns in my edit-post-page:
// ALL POST TYPES: posts AND custom post types
add_filter('manage_posts_columns', 'colonne_informative_head');
add_action('manage_posts_custom_column', 'colonna_proprietario', 10, 2);
// ADD NEW COLUMN
function colonne_informative_head($defaults) {
$defaults['custom_textarea_proprietario'] = 'Proprietario';
$defaults['custom_checkbox_group_sesso'] = 'Sesso occupanti';
return $defaults;
};
// SHOW THE FEATURED IMAGE
function colonna_proprietario($column_name, $post_ID) {
if ($column_name == 'custom_textarea_proprietario') {
$post_colonna_proprietario = get_post_meta($post_ID, 'custom_textarea_proprietario', true);
if ($post_colonna_proprietario) {
echo $post_colonna_proprietario;
}
};
if ($column_name == 'custom_checkbox_group_sesso') {
$sesso_occupanti = get_post_meta($post_ID, "custom_checkbox_group_sesso", true);
//check that we have a custom field
if ($sesso_occupanti != "")
{
// Separate our comma separated list into an array
$sesso_occupanti = explode(",", $sesso_occupanti);
//loop through our new array
foreach ($sesso_occupanti as $sesso)
{
echo $sesso ;
}
}
};
};
I have no problem with coloumn named: custom_textarea_proprietario because it was relatively easy to echo only 1 value.
But I have no idea about how to echo the values of second coloumn named: custom_checkbox_group_sesso actually it only echoes 'Array' and nothing else. If I open Php my admin and look for the data I'm storing I can see this:
a:3:{i:0;s:4:"Uomo";i:1;s:5:"Donna";i:2;s:14:"Giurisprudenza";}
What i would like to echo in my coloumn in that case is:
- Uomo
- Donna
Then one more coloumn with:
- Giurisprudenza
I'm almost a newbie in this kind of things so please be nice with me and try to explain things step by step.
