Helper Class to render html form element width WordPress data

class-formfields.php

<?php

/*
 * Mvd_FormFields
 * Helper Class to render html form element width WordPress data
 * NOTE: Designed for use with WordPress
 * @author Maurizio Pelizzone
 * @link http://maurizio.mavida.com
 * @license: GPLv2 or later
 * @License URI: http://www.gnu.org/licenses/gpl-2.0.html
 * @version: 0.2
 */

if ( !class_exists( 'Mvd_FormFields' ) ):
Class Mvd_FormFields {
	
	/*
	 *
	 */
	function input($id, $value='', $class='', $type='text' ) {
		
		if ( isset($_POST[$id]) )
			$value = ( $value == '' ? $_POST[$id] : $value);
		
		return "<input type=\"$type\" id=\"$id\" name=\"$id\" class=\"$class\" value=\"$value\">";
		}
		
		
	/*
	 *
	 */

	function get_options( $data, $selected = '') {
		
		foreach($data as $item) {
			$selected_attribute = "";
			if ( !is_array( $selected) ) {
				$selected_attribute = ( $item == $selected ? " selected " : "" );
				} else {
					foreach( $selected as $selected_item ){
						if ( $item == $selected_item ) {
							$selected_attribute = " selected ";
							break;
							}
						}
				
				}
				
				
			//$selected_attribute
			$options .= "<option " . $selected_attribute . " value='" . $item . "'>" . $item . "</option>";
		}
		
		return $options;
	}


	/*
	 *
	 */

	function select($id, $data, $selected = '' , $class='') {

		/* carico una combo a partire da un array */
		$options = "";
		$options .= "<option selected value=''>" . _(""). "</option>";
		
		$selected = ( $selected == '' ? $_POST[$id] : $selected);
	
		$options .= $this->get_options( $data, $selected );
		 
		return "<select id='$id' name='$id' class='$class' >$options</select>";
		}
	

	/*
	 *
	 */

	function combo_terms($id, $data, $selected = '' , $class='') {
		
		/* carico una combo a partire da un array */
		$options = "";
		$options .= "<option value=''></option>";
		
		
		foreach ( $data as $term ) {
	
			//$options .= $link_before . "<a href='" . get_permalink( $post->ID) . "'>" . $post->post_title . "</a>" . $link_after; 
			
			$selected_attribute = ( $term->name  == $selected ? " selected " : "" );
			if ($selected_attribute == "") {
				$selected_attribute = ( $term->slug  == $selected ? " selected " : "" );
				}
			
	
			$options .= "<option " . $selected_attribute . " value='" . $term->name  . "'>" .  $term->name  . "</option>";
	
	
	
		}
	
	
		 
		return "<select id='$id' name='$id' class='$class' >$options</select><!-- " . $selected . " -->" ;
		}

	/*
	 *
	 */
	function combo_terms_slug($id, $data, $selected = '' , $class='') {
		
		/* carico una combo a partire da un array */
		$options = "";
		$options .= "<option value=''></option>";
		
		
		foreach ( $data as $term ) {
	
			//$options .= $link_before . "<a href='" . get_permalink( $post->ID) . "'>" . $post->post_title . "</a>" . $link_after; 
			
			$selected_attribute = ( $term->slug  == $selected ? " selected " : "" );
			
	
			$options .= "<option " . $selected_attribute . " value='" . $term->slug  . "'>" .  $term->name  . "</option>";
	
	
	
		}
	
	
		 
		return "<select id='$id' name='$id' class='$class' >$options</select><!-- " . $selected . " -->" ;
		}


	/*
	 *
	 */
	function combo_posts($id, $data, $selected = '' , $class='') {
		global $post;
		$temp_post = $post;			
	
		/* carico una combo a partire da un array */
		$options = "";
		$options .= "<option value=''></option>";
		
		
		if ($data->have_posts()) : while ($data->have_posts()) : $data->the_post();
	
			//$options .= $link_before . "<a href='" . get_permalink( $post->ID) . "'>" . $post->post_title . "</a>" . $link_after; 
			
			$selected_attribute = ( $post->ID == $selected ? " selected " : "" );
	
			// applico il filtro per gestione multilingua
			$title = apply_filters('the_title', $post->post_title);
			$options .= "<option " . $selected_attribute . " value='" . $post->ID . "'>" .  $title  . "</option>";
	
	
	
		endwhile;
		endif;
	
		wp_reset_query();
		$post = $temp_post;
	
		
		 
		return "<select id='$id' name='$id' class='$class' >$options</select>";
		}
	
	
	} // fine classe

endif;