Forked from WagnerMatos/WordPress Conditional Custom Meta Box
Created
January 9, 2021 04:04
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WordPress Custom Meta Box that can used only on certain post types, pages, etc.
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| <?php | |
| /*///////////////////////////////////////////////////////////////////////////////////// | |
| //// Load scripts and styles for Meta box */ | |
| // enqueue scripts and styles, but only if is_admin | |
| if(is_admin()) { | |
| wp_enqueue_script('jquery-ui-datepicker'); | |
| wp_enqueue_script('jquery-ui-slider'); | |
| wp_enqueue_script('custom-js', get_template_directory_uri().'/library/metaboxes/js/custom-js.js'); | |
| wp_enqueue_style('jquery-ui-custom', get_template_directory_uri().'/library/metaboxes/css/jquery-ui-custom.css'); | |
| } | |
| // add some custom js to the head of the page | |
| add_action('admin_head','add_custom_scripts'); | |
| function add_custom_scripts() { | |
| global $home_custom_meta_fields, $post; | |
| $output = '<script type="text/javascript"> | |
| jQuery(function() {'; | |
| foreach ($home_custom_meta_fields as $field) { // loop through the fields looking for certain types | |
| // date | |
| if($field['type'] == 'date') | |
| $output .= 'jQuery(".datepicker").datepicker();'; | |
| // slider | |
| if ($field['type'] == 'slider') { | |
| $value = get_post_meta($post->ID, $field['id'], true); | |
| if ($value == '') $value = $field['min']; | |
| $output .= ' | |
| jQuery( "#'.$field['id'].'-slider" ).slider({ | |
| value: '.$value.', | |
| min: '.$field['min'].', | |
| max: '.$field['max'].', | |
| step: '.$field['step'].', | |
| slide: function( event, ui ) { | |
| jQuery( "#'.$field['id'].'" ).val( ui.value ); | |
| } | |
| });'; | |
| } | |
| } | |
| $output .= '}); | |
| </script>'; | |
| echo $output; | |
| } | |
| // Get all categories from WP and create a dropdown | |
| $categories = get_categories('hide_empty=0&orderby=name'); | |
| $wp_cats = array(); | |
| foreach ($categories as $category_list ) { | |
| $wp_cats[$category_list->cat_ID] = $category_list->cat_name; | |
| } | |
| array_unshift($wp_cats, "Choose a category"); | |
| // Wrap all categories in a function | |
| function wcat2() { | |
| $out = array(); | |
| $categories = get_categories(); | |
| foreach( $categories as $category ) { | |
| $out[$category->term_id] = array( | |
| 'label' => $category->slug, | |
| 'value' => $category->term_id | |
| ); | |
| } | |
| //return array('options'=>$out); | |
| return $out; | |
| } | |
| /*///////////////////////////////////////////////////////////////////////////////////// | |
| //// Metaboxes homepage */ | |
| // Check if is page-homepage.php template | |
| $post_id = (isset($_GET['post'])) ? $_GET['post'] : ((isset($_POST['post_ID'])) ? $_POST['post_ID'] : false); | |
| if ($post_id) : | |
| $post_template = get_post_meta($post_id, '_wp_page_template', true); | |
| if ($post_template == 'page-homepage.php') { | |
| // Add the Meta Box | |
| function home_custom_meta_box() { | |
| add_meta_box( | |
| 'home_meta_box', // $id | |
| 'Homepage options', // $title | |
| 'home_show_custom_meta_box', // $callback | |
| 'page', // $page | |
| 'normal', // $context | |
| 'high'); // $priority | |
| } | |
| add_action('add_meta_boxes', 'home_custom_meta_box'); | |
| // Field Array | |
| $prefix = 'home_'; | |
| $home_custom_meta_fields = array( | |
| array( | |
| 'label' => 'Slider On/Off', | |
| 'desc' => 'Tick here if you would like a slider on this page (This will override the theme settings).', | |
| 'id' => $prefix.'slider_default_onoff', | |
| 'type' => 'select', | |
| 'options' => array ( | |
| 'select' => array ( | |
| 'label' => 'Select one', | |
| 'value' => 'none' | |
| ), | |
| 'one' => array ( | |
| 'label' => 'On', | |
| 'value' => 'one' | |
| ), | |
| 'two' => array ( | |
| 'label' => 'Off', | |
| 'value' => 'two' | |
| ) | |
| ) | |
| ), | |
| array( | |
| 'label' => 'Short code for slider', | |
| 'desc' => 'Something like this: [rev_slider slider3]', | |
| 'id' => $prefix.'slider_code', | |
| 'type' => 'text' | |
| ), | |
| ); | |
| // The Callback | |
| function home_show_custom_meta_box() { | |
| global $home_custom_meta_fields, $post; | |
| // Use nonce for verification | |
| echo '<input type="hidden" name="custom_meta_box_nonce" value="'.wp_create_nonce(basename(__FILE__)).'" />'; | |
| // Begin the field table and loop | |
| echo '<table class="form-table">'; | |
| foreach ($home_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 | |
| case 'image': | |
| $image = get_template_directory_uri().'/images/image.png'; | |
| echo '<span class="custom_default_image" style="display:none">'.$image.'</span>'; | |
| if ($meta) { $image = wp_get_attachment_image_src($meta, 'medium'); $image = $image[0]; } | |
| echo '<input name="'.$field['id'].'" type="hidden" class="custom_upload_image" value="'.$meta.'" /> | |
| <img src="'.$image.'" 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">'.$field['desc'].'</span>'; | |
| break; | |
| } //end switch | |
| echo '</td></tr>'; | |
| } // end foreach | |
| echo '</table>'; // end table | |
| } | |
| // Save the Data | |
| function home_save_custom_meta($post_id) { | |
| global $home_custom_meta_fields; | |
| // verify nonce | |
| if (!wp_verify_nonce($_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 $post_id; | |
| } | |
| // loop through fields and save the data | |
| foreach ($home_custom_meta_fields as $field) { | |
| $old = get_post_meta($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 | |
| } | |
| add_action('save_post', 'home_save_custom_meta'); | |
| } | |
| endif; | |
| ?> |
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