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Image uploading widget using database (1 post)

  1. zazz
    Member
    Posted 5 years ago #

    I'm new at wordpress widget/plugins development and I've came to the following problem. I'm trying to do an image uploading widget so i can have a list of images in my sidebar. The idea is to upload the image, save the image path/name in a DB and then retrieve it and show it via the widget.. But.. i get stuck on the creating of the DB... i guess the install function I have is not firing by the hook.. but I have no idea why. Here's the code so far:

    <?php
    /*
    Plugin Name: Friends List Logos
    Author: CSS Slicers
    Description: Upload logos to your friends list
    Author URI: http://www.cssslicers.com
    */
    
    function widget_friendslist_init() {
    	if ( !function_exists('register_sidebar_widget') || !function_exists('register_widget_control') )
    		return;	
    
    	function friendslist_install ()
    	{
    		global $wpdb;
    
    		$table_name = $wpdb->prefix . "friendslist";
    		if($wpdb->get_var("show tables like '$table_name'") != $table_name)
    		{
    			$sql = "CREATE TABLE " . $table_name . " (
    			id mediumint(9) NOT NULL AUTO_INCREMENT,
    			image VARCHAR(255)NOT NULL,
    			name VARCHAR(255) NOT NULL,
    			UNIQUE KEY id (id)
    			);";
    
    			require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
    			dbDelta($sql);
    		}
    	}
    
    	function widget_friendslist_control()
    	{
    		global $wpdb;
    
    		$options = $newoptions = get_option('widget_friendslist');
    		if ( !is_array($newoptions) )
    			$newoptions = array(
    				'title' => '',
    				'friendslistimage'=> '');
    			if ( $_POST['friendslist-submit'] )
    			{
    				$newoptions['title'] = strip_tags(stripslashes($_POST['friendslist-title']));
    
    				$file_path = "";
    				if (strlen(basename( $_FILES['friendslistimage']['name'] )) > 0)
    				{
    					$file_path = "images/";
    					$md5 = md5(microtime () * mktime());
    					$uid = substr( $md5,0,10 );
    					$file_path = $file_path . $uid . "-" . basename( $_FILES['friendslistimage']['name'] );
    					move_uploaded_file($_FILES['friendslistimage']['tmp_name'], $file_path);
    				}
    
    				$newoptions['friendslistimage'] = $file_path;
    
    				$table_name = $wpdb->prefix . "friendslist";
    				$insert = "INSERT INTO " . $table_name .
    				" (title, image) " .
    				"VALUES ('" . $newoptions['title'] . "','" . $file_path . "')";
    
    				$results = $wpdb->query( $insert );
    			}
    
    			if ( $options != $newoptions )
    			{
    				$options = $newoptions;
    				update_option('widget_friendslist', $options);
    			}
    		$title = htmlspecialchars($options['title'], ENT_QUOTES);
    		$friendslistimage = htmlspecialchars($options['friendslistimage']);
    
    		echo '<ul>';
    		echo '<li style="list-style: none;"><label for="friendslist-title">Title: <input style="width: 50%;" id="friendslist-title" name="friendslist-title" type="text" value="'.$title.'" /></label></li>'; ?>
    	<?php
    		$abdir= get_bloginfo( 'siteurl' ) . '/wp-content/plugins/friendslist/friendslist.php';
    		$extplugin = 'advimage' ;
    		$getlocalcss = get_bloginfo('stylesheet_url');
    		$admincss = $abdir . '/friendslistadmin.css';
    	?>
    	<?php
    		echo '<li style="list-style: none;"><label for="friendslist-friendslistimage">Upload Logo: <input type="file" name="friendslistimage" value="" /></label></li></ul>';
    		echo '<input type="hidden" id="friendslist-submit" name="friendslist-submit" value="1" />';
    	}
    
    	function widget_friendslist()
    	{
    		echo '<div class="box">
    			<div class="top"></div>
    			<div class="box-content">
    				<h2>A special thanks to our friends:</h2>
    		';
    		//printing the images in the database for the friends list
    		echo '
    			</div>
    			<div class="bottom"></div>
    		</div><!-- end of box -->';
    	}
    register_activation_hook(__FILE__,'friendslist_install');
    register_sidebar_widget('Friends List Logos', 'widget_friendslist');
    register_widget_control('Friends List Logos', 'widget_friendslist_control', 300, 450);
    }
    add_action('plugins_loaded', 'widget_friendslist_init');
    ?>

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