Eazi Web: June 2013

First Wordpress plugin

/* Plugin Name: crud operation
* Plugin URI: www.datum.com
* description: a plugin for performing basic crud operations
* Vesion: 1.0
* Author URI: www.datum.com
* license: GP2
*/
function crud_setUserCaps($param) {
$editor = get_role(strtolower($param));
$editor->add_cap('edit_download_item');
$editor->add_cap('read_download_item');
$editor->add_cap('delete_download_item');
$editor->add_cap('edit_download_items');
$editor->add_cap('delete_download_items');
$editor->add_cap('read_download_items');
}
function crud_unsetUserCaps($param) {
$editor = get_role(strtolower($param));
$editor->remove_cap('edit_download_item');
$editor->remove_cap('read_download_item');
$editor->remove_cap('delete_download_item');
$editor->remove_cap('edit_download_items');
$editor->remove_cap('delete_download_items');
$editor->remove_cap('read_download_items');
}
function set_caps() {
//author,subscriber,contributor
crud_setUserCaps('editor');
crud_setUserCaps('administrator');
}
function crud_activationFun($param) {
set_caps();
crud_createDBTable();
crud_installData();
// Then flush them
flush_rewrite_rules();
}
register_activation_hook(__FILE__, 'crud_activationFun');
function crud_deactivationFun($param) {
crud_dropTable();
crud_unsetUserCaps('editor');
crud_unsetUserCaps('administrator');
flush_rewrite_rules();
}
register_deactivation_hook(__FILE__, 'crud_deactivation_fun');
add_action('wp_enqueue_scripts', 'crud_loadScripts');
function crud_loadScripts($param) {
wp_enqueue_script('jquery');
wp_register_script('docready', plugins_url('js/docready.js', __FILE__));
wp_enqueue_script('docready');
}
add_action('wp_enques_styles', 'crud_loadStyles');
function crud_loadStyles($param) {
wp_register_style('baseStyle', plugins_url('css/style.css', __FILE__));
wp_enqueue_style('baseStyle');
}
add_action('init', 'crud_addRewriteRules');
function crud_addRewriteRules() {
add_rewrite_rule("download_items/^([^/]*)/?", 'index.php?post_type=download_items=$matches[1]', 'top');
}
add_action('init', 'crud_registerDownloadItems');
function crud_registerDownloadItems() {
$labels = array(
'menu_name' => _x('download_items', 'Download Items'),
'name' => 'Download Items',
'singular_name' => 'Download Item',
'add_new' => 'Add New',
'add_new_item' => 'Add New Download Item',
'edit_item' => 'Edit Download Item',
'new_item' => 'New Download Item',
'all_items' => 'All Download Items',
'view_item' => 'View Download Item',
'search_items' => 'Search Download Items',
'not_found' => 'No Download Items found',
'not_found_in_trash' => 'No Download Items found in Trash',
'parent_item_colon' => '',
'menu_name' => 'Download Items'
);
$args = array(
'labels' => $labels,
'hierarchical' => true,
'description' => 'Slideshows',
'supports' => array('title', 'editor'),
'public' => true,
'show_ui' => true,
'show_in_menu' => true,
'show_in_nav_menus' => true,
'publicly_queryable' => true,
'exclude_from_search' => false,
'has_archive' => true,
'query_var' => true,
'can_export' => true,
'rewrite' => array(
'slug' => 'download_items',
'with_front' => false,
'feed' => true,
'pages' => true
),
'capabilities' => array(
// Meta capabilities
'edit_post' => 'edit_download_item',
'read_post' => 'read_download_item',
'delete_post' => 'delete_download_item',
// Primitive capabilities
'edit_posts' => 'edit_download_items',
'delete_post' => 'delete_download_items',
'read_posts' => 'read_download_items',
),
'capability_type' => 'post'
);
register_post_type('download_items', $args);
}

add_action('add_meta_boxes', 'crud_addMetaBoxes');
function crud_addMetaBoxes() {
//add_meta_box($id, $title, $callback, $page, $context, $priority);
add_meta_box("crud_custom_fields", "Other Information", 'crud_viewFields', "download_items", "normal");
}
function crud_viewFields() {
global $post, $wpdb;
$table_name = $wpdb->prefix . "categories";
$checked_status = '';
$download_price = get_post_meta($post->ID, 'download_price');
$crud_category = get_post_meta($post->ID, 'crud_category');
$myrows = $wpdb->get_results( "SELECT category_name, category_Label FROM {$table_name}" );

$html = '';
$html .= '';
$html .= "

Download price

Categories ";
$html .= '
';

foreach ($myrows as $key => $value) {
if (stristr($crud_category[0], $value->category_name) == true) {
$checked_status = ' checked="checked" ';
$html .= '

' . $value->category_Label . '

';
} else {
$html .= '

' . $value->category_Label . '

';
}
}

$html .= "

";
echo $html;
}
/* Save Slider Options to database */
add_action('save_post', 'crud_saveDownloadInfo');
function crud_saveDownloadInfo($post_id) {

// verify nonce
if (!wp_verify_nonce($_POST['crud_custom_fields_nonce'], basename(__FILE__))) {
return $post_id;
}
// check autosave
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return $post_id;
}
// check permissions
if ('download_items' == $_POST['post_type'] && current_user_can('edit_download_items', $post_id)) {
$download_price = (isset($_POST['crud_download_price']) ? $_POST['crud_download_price'] : '');
$categories = (isset($_POST['crud_category']) ? $_POST['crud_category'] : '');
$categories = strip_tags(json_encode($categories));
update_post_meta($post_id, "download_price", $download_price);
update_post_meta($post_id, "crud_category", $categories);
} else {
return $post_id;
}
}
// Callback function to show fields in meta box
add_filter('map_meta_cap', 'crud_downloadItemMetaCap', 10, 4);
function crud_downloadItemMetaCap($primitive_caps, $meta_cap, $user_id, $args) {
// If meta-capability is not download_item based do nothing.
if (!in_array($meta_cap, array('edit_download_item', 'delete_download_item', 'read_download_item'))) {
return $primitive_caps;
}
// Check post is of post type.
$post = get_post($args[0]);
$post_type = get_post_type_object($post->post_type);
if ('download_items' != $post_type) {
return $primitive_caps;
}
$primitive_caps = array();
switch ($meta_cap):
case 'edit_download_item':
if ($post->post_author == $user_id) {
// User is post author
if ('publish' == $post->post_status) {
// download_item is published: require 'edit_published_download_items' capability
$primitive_caps[] = $post_type->cap->edit_published_posts;
} elseif ('trash' == $post->post_status) {
if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true)) {
// download_item is a trashed published post require 'edit_published_download_items' capability
$primitive_caps[] = $post_type->cap->edit_published_posts;
}
} else {
$primitive_caps[] = $post_type->cap->edit_posts;
}
} else {
// The user is trying to edit a post belonging to someone else.
$primitive_caps[] = $post_type->cap->edit_others_posts;
// If the post is published or private, extra caps are required.
if ('publish' == $post->post_status) {
$primitive_caps[] = $post_type->cap->edit_published_posts;
} elseif ('private' == $post->post_status) {
$primitive_caps[] = $post_type->cap->edit_private_posts;
}
}
break;
case 'read_download_item':
if ('private' != $post->post_status) {
// If the post is not private, just require read capability
$primitive_caps[] = $post_type->cap->read;
} elseif ($post->post_author == $user_id) {
// Post is private, but current user is author
$primitive_caps[] = $post_type->cap->read;
} else {
// Post is private, and current user is not the author
$primitive_caps[] = $post_type->cap->read_private_post;
}
break;
case 'delete_download_item':
if ($post->post_author == $user_id) {
// Current user is author, require delete_download_items capability
$primitive_caps[] = $post_type->cap->delete_posts;
} else {
// Current user is no the author, require delete_others_download_items capability
$primitive_caps[] = $post_type->cap->delete_others_posts;
}
// If post is published, require delete_published_posts capability too
if ('publish' == $post->post_status) {
$primitive_caps[] = $post_type->cap->delete_published_posts;
}
break;
endswitch;
return $primitive_caps;
}
function crud_frontendDeleteLink() {
if (!current_user_can('delete_download_items')) {
echo ' ';
return;
}
$url = add_query_arg(
array(
'action' => 'frontend_delete',
'post' => get_the_ID()
)
);
echo "Delete";
}
if (isset($_REQUEST['action']) && $_REQUEST['action'] == 'frontend_delete') {
add_action('init', 'crud_FrontendDeletePost');
}
function crud_FrontendDeletePost() {
if (!current_user_can('delete_download_items'))
return;
$post_id = (isset($_REQUEST['post']) ? (int) $_REQUEST['post'] : 0);
if (empty($post_id))
return;
wp_trash_post($post_id);
}
add_shortcode('downloadItem', crud_downloadItemFun);
function crud_downloadItemFun() {
set_caps();
global $post ;
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args = array(
'posts_per_page' => 10,
'post_type' => 'download_items',
'paged' => $paged
);
$newsObj = new WP_Query($args);
if ($newsObj->have_posts()): ?>

while ($newsObj->have_posts()): $newsObj->the_post();
$curr_id = get_the_ID();
$meta = get_post_meta( $curr_id,'crud_category' );
$meta = preg_replace('/[^a-zA-Z0-9\,]/', '', $meta);
$download_price = get_post_meta( $curr_id,'download_price' );
?>

endwhile;?>

Title Categories Price Edit Delete

0 ) {echo $meta[0] ;} ?> 0 ) echo implode(',', $download_price); ?> ">Edit

endif;
wp_reset_query();
}
add_action('admin_menu','crud_pluginSetting');
function crud_pluginSetting() {
add_menu_page('Crud Plugin Settings', 'Crud Settings', 'administrator', 'crud_settings', 'crud_settingFunction');
}
if (isset($_REQUEST['category_label']) && (!empty ($_REQUEST['category_label']) || '' != 'frontend_delete')) {
crud_installData($_REQUEST['category_name'], $_REQUEST['category_label']);
}
function crud_settingFunction() {
$category_label = (get_option('category_label') != '') ? get_option('category_label') : 'category_label100';
$category_name = (get_option('category_name') != '') ? get_option('category_name') : 'category_name100';
$html = '

Download price
Categories	"; $html .= ' '; foreach ($myrows as $key => $value) { if (stristr($crud_category[0], $value->category_name) == true) { $checked_status = ' checked="checked" '; $html .= ' ' . $value->category_Label . ' '; } else { $html .= ' ' . $value->category_Label . ' '; } } $html .= "

';
    echo $html;
}
function crud_createDBTable() {
    global $wpdb;
    $table_name = $wpdb->prefix . "categories";
    $sql = "CREATE TABLE $table_name (
  id mediumint(9) NOT NULL AUTO_INCREMENT,
  category_name text NOT NULL,
  category_label text NOT NULL,
  UNIQUE KEY id (id)
    );";
    require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
    dbDelta($sql);
}
function crud_dropTable() {
    global $wpdb;
    $table_name = $wpdb->prefix . "categories";
    $sql = "DROP TABLE $table_name";
}
function crud_installData($category_name = "News",$category_Label = "News") {
   global $wpdb;
   $table_name = $wpdb->prefix . "categories";
   //$category_name = "News";
   //$category_Label = "News";
   $rows_affected = $wpdb->insert( $table_name, array( 'category_name' => $category_name, 'category_Label' => $category_Label) );
}
//Debug Errors if there are any
add_action('activated_plugin','save_error');
function save_error(){
    file_put_contents(ABSPATH. 'wp-content/uploads/2013/error_activation.html', ob_get_contents());
}
?>

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Thursday, June 13, 2013

First Wordpress plugin

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Title	Categories	Price	Edit	Delete
	0 ) {echo $meta[0] ;} ?>	0 ) echo implode(',', $download_price); ?>	">Edit