functions.php

<?php
/**
 * Enqueue scripts and styles for the front end.
 *
 * @since Twenty Thirteen 1.0
 *
 * @return void
 */
function scripts_styles() {
	
	// Loads JavaScript file with functionality specific to Twenty Thirteen.
	wp_enqueue_script( 'twentythirteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '2013-07-18', true );
	wp_enqueue_script( 'bootstrap', get_template_directory_uri() . '/js/bootstrap/bootstrap.js', array( 'jquery' ), '2013-07-18', true );

	// Loads our main stylesheet.
	wp_enqueue_style( 'twentythirteen-style', get_stylesheet_uri(), array(), '2013-07-18' );

}
add_action( 'wp_enqueue_scripts', 'scripts_styles' );




add_theme_support('post-formats');
add_theme_support('post-thumbnails');
add_theme_support('menus');

add_filter('get_twig', 'add_to_twig');
add_filter('timber_context', 'add_to_context');

add_action('wp_enqueue_scripts', 'load_scripts');

define('THEME_URL', get_template_directory_uri());
function add_to_context($data){
	/* this is where you can add your own data to Timber's context object */
	$data['qux'] = 'I am a value set in your functions.php file';
	$data['theme_options'] = get_option('theme_options');
	$data['menu'] = new TimberMenu();
	return $data;
}

function add_to_twig($twig){
	/* this is where you can add your own fuctions to twig */
	$twig->addExtension(new Twig_Extension_StringLoader());
	$twig->addFilter('bang', new Twig_Filter_Function('bang'));
	$twig->addFilter('translate_section_title', new Twig_Filter_Function('translate_section_title'));
	$twig->addFilter('slugify_section_title', new Twig_Filter_Function('slugify_section_title'));
	$twig->addFilter('check_for_array', new Twig_Filter_Function('check_for_array'));
	// $twig->addFilter('theme_options', get_option('theme_options'));
	return $twig;
}

function bang($value){
	if ($value != true) {
		return true;
	}
	return false;
}

function load_scripts(){
	wp_enqueue_script('jquery');
}


// 
// Issues CPT
// 

add_action( 'init', 'create_issue_post_type' );
 
function create_issue_post_type() {
	$args = array(
		'description' => 'Issues Post Type',
		'show_ui' => true,
		'menu_position' => 4,
		'exclude_from_search' => true,
		'labels' => array(
		  'name'=> 'Issues',
		  'singular_name' => 'Issue',
		  'add_new' => 'Add New Issue',
		  'add_new_item' => 'Add New Issue',
		  'edit' => 'Edit Issue',
		  'edit_item' => 'Edit Issue',
		  'new-item' => 'New Issue',
		  'view' => 'View Issue',
		  'view_item' => 'View Issue',
		  'search_items' => 'Search Issue',
		  'not_found' => 'No Issues Found',
		  'not_found_in_trash' => 'No Issues Found in Trash',
		  'parent' => 'Parent Issue'
		 ),
		'public' => true,
		'capability_type' => 'post',
		'hierarchical' => false,
		'rewrite' => true,
		'supports' => array('title', 'editor', 'thumbnail')
	);
	register_post_type( 'issue' , $args );
}

// 
// Add Custom Meta Box to Issues CPT
// 

// Adds a box to the main column on the Post and Page edit screens.
function myplugin_add_custom_box() {
  add_meta_box('myplugin_sectionid', "Issue Number", 'issue_number_to_issue', 'issue', 'side');
  add_meta_box('myplugin_sectionid', "Issue Section", 'custom_post_meta', 'post', 'side', 'high');
}
add_action( 'add_meta_boxes', 'myplugin_add_custom_box' );

function issue_number_to_issue( $post ) {
  wp_nonce_field( 'issue_number_to_issue', 'issue_number_to_issue_nonce' );

  // Use get_post_meta() to retrieve an existing value from the database and use the value for the form.
  $value = get_post_meta( $post->ID, 'issue_number', true );

  echo '<label for="issue_number">Just put a numeric value here. If Issue #1, put "1".</label>';
  echo '<input type="text" id="issue_number" name="issue_number" value="' . esc_attr( $value ) . '" size="25" />';
}

function custom_post_meta( $post ) {
  wp_nonce_field( 'custom_post_meta', 'issue_section_to_post_nonce' );

  // Use get_post_meta() to retrieve an existing value from the database and use the value for the form.
  $issue_section = get_post_meta( $post->ID, 'issue_section', true );
  $article_link = get_post_meta( $post->ID, 'article_link', true );
  $article_title = get_post_meta( $post->ID, 'article_title', true );
  $article_author = get_post_meta( $post->ID, 'article_author', true );

  // Issue Section
  echo '<label for="issue_section">Issue Section (ie. "Dev Tools", "Frameworks", etc.)</label>';
  echo '<input type="text" id="issue_section" name="issue_section" value="' . esc_attr( $issue_section ) . '" size="25" />';

  // Article Link
  echo '<label for="article_link">Article Link</label>';
  echo '<input type="text" id="article_link" name="article_link" value="' . esc_attr( $article_link ) . '" size="25" />';

	// Article Title
  echo '<label for="article_title">Article Title</label>';
  echo '<input type="text" id="article_title" name="article_title" value="' . esc_attr( $article_title ) . '" size="25" />';
  
  // Article Author
  echo '<label for="article_author">Article Author</label>';
  echo '<input type="text" id="article_author" name="article_author" value="' . esc_attr( $article_author ) . '" size="25" />';
}

// When the post is saved, saves our custom data.
function myplugin_save_postdata( $post_id ) {

   // We need to verify this came from the our screen and with proper authorization,
  // because save_post can be triggered at other times.
  
  // Check if our nonce is set.
  // if ( ! isset( $_POST['myplugin_inner_custom_box_nonce'] ) )
  //   return $post_id;

  // $nonce = $_POST['myplugin_inner_custom_box_nonce'];

  // // Verify that the nonce is valid.
  // if ( ! wp_verify_nonce( $nonce, 'myplugin_inner_custom_box' ) )
  //     return $post_id;

  // // If this is an autosave, our form has not been submitted, so we don't want to do anything.
  // if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) 
  //     return $post_id;

  // // Check the user's permissions.
  // if ( 'issue' == $_POST['post_type'] ) {

  //   if ( ! current_user_can( 'edit_page', $post_id ) )
  //       return $post_id;
  
  // } else {

  //   if ( ! current_user_can( 'edit_post', $post_id ) )
  //       return $post_id;
  // }

  /* OK, its safe for us to save the data now. */

  // Sanitize user input.
  $issue_number = sanitize_text_field( $_POST['issue_number'] );
  $issue_section = sanitize_text_field( $_POST['issue_section'] );
  $article_link = sanitize_text_field( $_POST['article_link'] );
  $article_title = sanitize_text_field( $_POST['article_title'] );
  $article_author = sanitize_text_field( $_POST['article_author'] );

  // Update the meta field in the database.
  update_post_meta( $post_id, 'issue_number', $issue_number );
  update_post_meta( $post_id, 'issue_section', $issue_section );
  update_post_meta( $post_id, 'article_link', $article_link );
  update_post_meta( $post_id, 'article_title', $article_title );
  update_post_meta( $post_id, 'article_author', $article_author );
}
add_action( 'save_post', 'myplugin_save_postdata' );



// 
// Theme Options
// 

function build_options_page() { ?>
<div id="theme-options-wrap">
	<div class="icon32" id="icon-tools"> <br /> </div>
	<h2>Theme Settings</h2>
	<p>Update various settings throughout your website.</p>
	<form method="post" action="options.php" enctype="multipart/form-data">
		<?php settings_fields('theme_options'); ?>
		<?php do_settings_sections(__FILE__); ?>
		<p class="submit">
			<input name="Submit" type="submit" class="button-primary" value="<?php esc_attr_e('Save Changes'); ?>" />
		</p>
	</form>
</div>
<?php }
add_action('admin_init', 'register_and_build_fields');
function register_and_build_fields() {
	register_setting('theme_options', 'theme_options', 'validate_setting');
	add_settings_section('homepage_settings', 'Homepage Settings', 'section_homepage', __FILE__);
	add_settings_section('footer_settings', 'Footer Settings', 'section_footer', __FILE__);
	function section_homepage() {}
	function section_footer() {}
	

	add_settings_field('home_headline', 'Home Headline', 'home_headline', __FILE__, 'homepage_settings');
	add_settings_field('home_sub_headline', 'Home Sub Headline', 'home_sub_headline', __FILE__, 'homepage_settings');
	add_settings_field('home_no_issues_title', 'Home No Issues Title', 'home_no_issues_title', __FILE__, 'homepage_settings');
	add_settings_field('home_no_issues_text', 'Home No Issues Text', 'home_no_issues_text', __FILE__, 'homepage_settings');
	// add_settings_field('home_page_issue_number', 'Issue # to show on Home Page', 'home_page_issue_number', __FILE__, 'homepage_settings');
	
	// not using yet
	
	// add_settings_field('button2text', 'Button 2 Text', 'button2text_setting', __FILE__, 'homepage_settings');
	// add_settings_field('button2link', 'Button 2 URL', 'button2link_setting', __FILE__, 'homepage_settings');
	// add_settings_field('button3text', 'Button 3 Text', 'button3text_setting', __FILE__, 'homepage_settings');
	// add_settings_field('button3link', 'Button 3 URL', 'button3link_setting', __FILE__, 'homepage_settings');
	// add_settings_field('phonenumber', 'Phone Number', 'phonenumber', __FILE__, 'footer_settings');
	// add_settings_field('facebookurl', 'Facebook URL', 'facebookurl', __FILE__, 'footer_settings');
	// add_settings_field('googleurl', 'Google+ URL', 'googleurl', __FILE__, 'footer_settings');
	// add_settings_field('twitterurl', 'Twitter URL', 'twitterurl', __FILE__, 'footer_settings');
}
function validate_setting($theme_options) {
	return $theme_options;
}
// function home_page_issue_number() {
// 	$options = get_option('theme_options');  echo "<input name='theme_options[home_page_issue_number]' type='text' value='{$options['home_page_issue_number']}' />";
// }

function home_headline() {
	$options = get_option('theme_options');  echo "<input name='theme_options[home_headline]' type='text' value='{$options['home_headline']}' />";
}
function home_sub_headline() {
	$options = get_option('theme_options');  echo "<input name='theme_options[home_sub_headline]' type='text' value='{$options['home_sub_headline']}' />";
}
function home_no_issues_text() {
	$options = get_option('theme_options');  echo "<input name='theme_options[home_no_issues_text]' type='text' value='{$options['home_no_issues_text']}' />";
}
function home_no_issues_title() {
	$options = get_option('theme_options');  echo "<input name='theme_options[home_no_issues_title]' type='text' value='{$options['home_no_issues_title']}' />";
}


// not using yet
function button2link_setting() {
	$options = get_option('theme_options');  echo "<input name='theme_options[button2link_setting]' type='text' value='{$options['button2link_setting']}' />";
}
function button3text_setting() {
	$options = get_option('theme_options');  echo "<input name='theme_options[button3text_setting]' type='text' value='{$options['button3text_setting']}' />";
}
function button3link_setting() {
	$options = get_option('theme_options');  echo "<input name='theme_options[button3link_setting]' type='text' value='{$options['button3link_setting']}' />";
}
function phonenumber() {
	$options = get_option('theme_options');  echo "<input name='theme_options[phonenumber]' type='text' value='{$options['phonenumber']}' />";
}
function facebookurl() {
	$options = get_option('theme_options');  echo "<input name='theme_options[facebookurl]' type='text' value='{$options['facebookurl']}' />";
}
function googleurl() {
	$options = get_option('theme_options');  echo "<input name='theme_options[googleurl]' type='text' value='{$options['googleurl']}' />";
}
function twitterurl() {
	$options = get_option('theme_options');  echo "<input name='theme_options[twitterurl]' type='text' value='{$options['twitterurl']}' />";
}
add_action('admin_menu', 'theme_options_page');
function theme_options_page() {  add_options_page('Theme Settings', 'Theme Settings', 'administrator', __FILE__, 'build_options_page');}



function sort_posts_by_category($posts) {

	$sorted_posts = array(
		'news' => array(),
		'performance' => array(),
		'frameworks' => array(),
		'dev-tools' => array(),
		'seo' => array(),
		'inspiration' => array(),
		'tutorials' => array(),
		'opinions' => array(),
		'resources' => array(),
		'uiux' => array(),
		'libraries' => array(),
		'learning' => array(),
		'other' => array(),
		'responsive' => array()
	);
	
	foreach ($posts as $post) {
// echo "<pre>";
// print_r($context['posts']);
// echo "</pre>";

		if (is_array($post->issue_section)) {
			$issue_section = $post->issue_section[0];
		} else {
			$issue_section = $post->issue_section;
		}
		
		switch ($issue_section) {
			case 'News':
				array_push($sorted_posts['news'], $post);
				break;
			
			case 'Frameworks':
				array_push($sorted_posts['frameworks'], $post);
				break;
			
			case 'Dev Tools':
				array_push($sorted_posts['dev-tools'], $post);
				break;
			
			case 'Inspiration':
				array_push($sorted_posts['inspiration'], $post);
				break;
			
			case 'Tutorials':
				array_push($sorted_posts['tutorials'], $post);
				break;

			case 'Opinions':
				array_push($sorted_posts['opinions'], $post);
				break;

			case 'Resources':
				array_push($sorted_posts['resources'], $post);
				break;

			case 'UI/UX':
				array_push($sorted_posts['uiux'], $post);
				break;

			case 'Libraries':
				array_push($sorted_posts['libraries'], $post);
				break;

			case 'Learning':
				array_push($sorted_posts['learning'], $post);
				break;

			case 'Performance':
				array_push($sorted_posts['performance'], $post);
				break;

			case 'SEO':
				array_push($sorted_posts['seo'], $post);
				break;

			case 'Responsive':
				array_push($sorted_posts['responsive'], $post);
				break;

			default:
				array_push($sorted_posts['other'], $post);
				break;
		}
	}
	
	return $sorted_posts;
}

function translate_section_title($id) {

	switch ($id) {
		case 'news':
			return 'News';

		case 'frameworks':
			return 'Frameworks';
			
		case 'dev-tools':
			return 'Dev Tools';
		
		case 'inspiration':
			return 'Inspiration';
		
		case 'tutorials':
			return 'Tutorials';

		case 'resources':
			return 'Resources';

		case 'libraries':
			return 'Libraries';

		case 'learning':
			return 'Learning';
		
		case 'opinions':
			return 'Opinions';

		case 'uiux':
			return 'UI/UX';

		case 'seo':
			return 'SEO';

		case 'performance':
			return 'Performance';

		case 'responsive':
			return 'Responsive';

		default:
			return 'Other';
	}
}

function slugify_section_title($title) {
	// error_log($title);
	switch ($title) {
		case 'News':
			return 'news';

		case 'Frameworks':
			return 'frameworks';
			
		case 'Dev Tools':
			return 'dev-tools';
		
		case 'Inspiration':
			return 'inspiration';
		
		case 'Tutorials':
			return 'tutorials';

		case 'Resources':
			return 'resources';

		case 'Libraries':
			return 'libraries';

		case 'Opinions':
			return 'opinions';

		case 'SEO':
			return 'seo';

		case 'Learning':
			return 'learning';

		case 'Performance':
			return 'performance';

		case 'UI/UX':
			return 'uiux';
		
		case 'Responsive':
			return 'responsive';

		default:
			return 'other';
	}
}

function check_for_array($data) {
	// This is a hack because I haven't fixed the metadata string double-saving into an array
	if (is_array($data)) {
		$value = $data[0];
	} else {
		$value = $data;
	}
	return $value;
}