Initial commit.

Initial version that includes teh custom taxonomy and custom post type.

index.php

@@ -0,0 +1,163 @@
+<?php
+/**
+ * @package Reading_List
+ * @version 0.1
+ */
+/*
+Plugin Name: Reading List
+Plugin URI: http://andrewspittle.net/projects/reading-list
+Description: Track the books you read right from the WordPress Dashboard.
+Author: Andrew Spittle
+Version: 0.1
+Author URI: http://andrewspittle.net/
+*/
+
+/**
+ * Start up our custom post type and hook it in to the init action when that fires.
+ *
+ * @since Reading List 0.1
+ */
+
+add_action( 'init', 'rl_create_post_type' );
+
+function rl_create_post_type() {
+	$labels = array(
+		'name' 							=> __( 'Books', 'readinglist' ),
+		'singular_name' 				=> __( 'Book', 'readinglist' ),
+		'search_items'					=> __( 'Search Books', 'readinglist' ),
+		'all_items'						=> __( 'All Books', 'readinglist' ),
+		'edit_item'						=> __( 'Edit Book', 'readinglist' ),
+		'update_item' 					=> __( 'Update Book', 'readinglist' ),
+		'add_new_item' 					=> __( 'Add New Book', 'readinglist' ),
+		'new_item_name' 				=> __( 'New Book', 'readinglist' ),
+		'menu_name' 					=> __( 'Books', 'readinglist' ),
+	);
+
+	$args = array (
+		'labels' 		=> $labels,
+		'public' 		=> true,
+		'menu_position' => 20,
+		'has_archive' 	=> true,
+		'rewrite'		=> array( 'slug' => 'books' ),
+		'supports' 		=> array( 'title', 'thumbnail', 'editor' )
+	);
+	register_post_type( 'rl_book', $args );
+}
+
+/**
+ * Create our custom taxonomies. One hierarchical one for genres and a flat one for authors.
+ *
+ * @since Reading List 0.1
+ */
+
+/* Hook in to the init action and call rl_create_book_taxonomies when it fires. */
+add_action( 'init', 'rl_create_book_taxonomies', 0 );
+
+function rl_create_book_taxonomies() {
+	// Add new taxonomy, keep it non-hierarchical (like tags)
+	$labels = array(
+		'name' 							=> __( 'Authors', 'readinglist' ),
+		'singular_name' 				=> __( 'Author', 'readinglist' ),
+		'search_items' 					=> __( 'Search Authors', 'readinglist' ),
+		'all_items' 					=> __( 'All Authors', 'readinglist' ),
+		'edit_item' 					=> __( 'Edit Author', 'readinglist' ), 
+		'update_item' 					=> __( 'Update Author', 'readinglist' ),
+		'add_new_item' 					=> __( 'Add New Author', 'readinglist' ),
+		'new_item_name' 				=> __( 'New Author Name', 'readinglist' ),
+		'separate_items_with_commas' 	=> __( 'Separate authors with commas', 'readinglist' ),
+		'choose_from_most_used' 		=> __( 'Choose from the most used authors', 'readinglist' ),
+		'menu_name' 					=> __( 'Authors', 'readinglist' ),
+	); 	
+
+	register_taxonomy( 'book-author', array( 'rl_book' ), array(
+		'hierarchical' 		=> false,
+		'labels' 			=> $labels,
+		'show_ui' 			=> true,
+		'show_admin_column' => true,
+		'query_var' 		=> true,
+		'rewrite' 			=> array( 'slug' => 'book-author' ),
+	));
+}
+
+/**
+ * Add custom meta box for tracking the page numbers of the book.
+ *
+ * Props to Justin Tadlock: http://wp.smashingmagazine.com/2011/10/04/create-custom-post-meta-boxes-wordpress/
+ *
+ * @since Reading List 1.0
+ *
+*/
+
+/* Fire our meta box setup function on the editor screen. */
+add_action( 'load-post.php', 'rl_post_meta_boxes_setup' );
+add_action( 'load-post-new.php', 'rl_post_meta_boxes_setup' );
+
+/* Our meta box set up function. */
+function rl_post_meta_boxes_setup() {
+
+	/* Add meta boxes on the 'add_meta_boxes' hook. */
+	add_action( 'add_meta_boxes', 'rl_add_post_meta_boxes' );
+
+	/* Save post meta on the 'save_post' hook. */
+	add_action( 'save_post', 'rl_pages_save_meta', 10, 2 );
+}
+
+/* Create one or more meta boxes to be displayed on the post editor screen. */
+function rl_add_post_meta_boxes() {
+
+	add_meta_box(
+		'rl-pages',								// Unique ID
+		esc_html__( 'Pages', 'example' ),		// Title
+		'rl_pages_meta_box',					// Callback function
+		'rl_book',								// Add metabox to our custom post type
+		'side',									// Context
+		'default'								// Priority
+	);
+}
+
+/* Display the post meta box. */
+function rl_pages_meta_box( $object, $box ) { ?>
+
+	<?php wp_nonce_field( basename( __FILE__ ), 'rl_pages_nonce' ); ?>
+
+	<p class="howto"><label for="rl-pages"><?php _e( "Add the page count of the book.", 'example' ); ?></label></p>
+	<p><input class="widefat" type="text" name="rl-pages" id="rl-pages" value="<?php echo esc_attr( get_post_meta( $object->ID, 'rl_pages', true ) ); ?>" size="30" /></p>
+<?php }
+
+/* Save the meta box's data. */
+function rl_pages_save_meta( $post_id, $post ) {
+
+	/* Verify the nonce before proceeding. */
+	if ( !isset( $_POST['rl_pages_nonce'] ) || !wp_verify_nonce( $_POST['rl_pages_nonce'], basename( __FILE__ ) ) )
+		return $post_id;
+
+	/* Get the post type object. */
+	$post_type = get_post_type_object( $post->post_type );
+
+	/* Check if the current user has permission to edit the post. */
+	if ( !current_user_can( $post_type->cap->edit_post, $post_id ) )
+		return $post_id;
+
+	/* Get the posted data and sanitize it for use as an HTML class. */
+	$new_meta_value = ( isset( $_POST['rl-pages'] ) ? sanitize_html_class( $_POST['rl-pages'] ) : '' );
+
+	/* Get the meta key. */
+	$meta_key = 'rl_pages';
+
+	/* Get the meta value of the custom field key. */
+	$meta_value = get_post_meta( $post_id, $meta_key, true );
+
+	/* If a new meta value was added and there was no previous value, add it. */
+	if ( $new_meta_value && '' == $meta_value )
+		add_post_meta( $post_id, $meta_key, $new_meta_value, true );
+
+	/* If the new meta value does not match the old value, update it. */
+	elseif ( $new_meta_value && $new_meta_value != $meta_value )
+		update_post_meta( $post_id, $meta_key, $new_meta_value );
+
+	/* If there is no new meta value but an old value exists, delete it. */
+	elseif ( '' == $new_meta_value && $meta_value )
+		delete_post_meta( $post_id, $meta_key, $meta_value );
+} 
+
+?>