12: Tying It All Together: Speed Dial Application in Java

Drawer PDF-417 2d barcode in Java 12: Tying It All Together: Speed Dial Application

$fbml = <fb:name uid=\ {$dial_friends[$f_index][ fid ]}\ useyou=\ false\ /><br /> ; } $fbml = <a href=\ http://wwwfacebookcom/pokephp id={$dial_friends [$f_index][ fid ]}\ style=\ margin-right:3px;\ ><img src=\ $APP_CALLBACK_URL/pokegif\ /></a> ; $fbml = <a href=\ http://wwwfacebookcom/wallphp id={$dial_friends [$f_index][ fid ]}\ ><img src=\ $APP_CALLBACK_URL/wallgif\ /></a> <br /> ; } $fbml = </td> ; return $fbml; }

Underneath the thumbnail of the friend, a poke and wall action links are provided All of the content is returned to the calling get_profile_fbml() function as a string The get_profile_fbml() and get_cell_contents() functions do the work of assembling the profile box content The render_profile_box() in displayphp is the one that actually calls the profilesetFBML function:

function render_profile_box() { global $facebook; $fbml = get_profile_fbml(); $facebook->api_client->profile_setFBML(null, null, $fbml); }

One of the key questions for any app is when to update the profile box For some apps, it makes sense to have a chron program running that updates the profile box of a user based on time However, with Speed Dial, it makes the most sense to update the profile box anytime a user makes a change to his Speed Dial I could call render_profile_box() when indexphp loads, but that is not as efficient as adding it to the data-changing handlers in indexphp:

if (isset($_POST[ friend_picked ])) { $fid = $_POST[ friend_picked ]; $place = $_POST[ placement ]; add_dial_friend($user, $fid, $place, 0); render_profile_box(); } // Handlers for action links $action = $_REQUEST[ action ]; $fid_actor = (int) $_REQUEST[ fid ]; $place = (int) $_REQUEST[ place ];

// Delete friend if ( $action == delete ) { remove_dial_friend($user, $fid_actor); render_profile_box(); } // Add as Poison Control elseif ( $action == pc ) { clear_thumbnail($user); add_dial_friend($user, $fid_actor, $place, 1); render_profile_box(); } // Clear all friends elseif ( $action == clearall ) { clear_dial($user); render_profile_box(); } // Clear Poison Control icon elseif ( $action == clearpc ) { clear_thumbnail($user); render_profile_box(); }

Some of the functionality of Speed Dial lends itself to notifications and News Feed stories The trick is determining what sort of communication is appropriate for a given user action I decided that I would send a notification to a friend when she is added to a user s Speed Dial or is assigned the Poison Control designation Here s the notify_friend() function, contained in publishphp:

function notify_friend($fid, $action, $ranking) { global $facebook; global $user; if ($action == add ) { $fbml = added you to spot $ranking on <fb:pronoun uid= $user useyou= false possessive= true /> speed dial ; } else if ($action == pc ) { $fbml = secretly placed you under the Poison Control label on <fb:pronoun uid= $user useyou= false possessive= true /> speed dial ; } try { $facebook->api_client->notifications_send($fid, $fbml); } catch (Exception $ex) { // maybe do something } }

Because Facebook places a limit to the number of notifications an app can send a day, the notificationssend() call is wrapped inside of a try/catch block

I also set up a templatized action in publishphp by calling feedpublish TemplatizedAction() based on the action that the user performs:

// Publish a news story related to a Speed Dial event function publish_news_story( $target_id, $action, $ranking) { global $facebook; global $APP_ROOT_URL; if ($action == add ) { $title_template = {actor} added {target} to spot {ranking} on <fb:pronoun uid= actor useyou= false possessive= true /> speed dial ; $title_data = json_encode(array( ranking => $ranking, )); } else if ($action == delete ) { $title_template = {actor} removed {target} from <fb:pronoun uid= actor useyou= false possessive= true /> speed dial ; $title_data = null; } else if ($action == pc ) { $title_template = {actor} secretly placed {target} under the Poison Control label on <fb:pronoun uid= actor useyou= false possessive= true /> speed dial ; $title_data = null; } else if ($action == clearall ) { $title_template = {actor} cleared all friends from <fb:pronoun uid= actor useyou= false possessive= true /> speed dial ; $title_data = null; } else if ($action == clearpc ) { $title_template = {actor} unassigned the coveted Poison Control label from <fb:pronoun uid= actor useyou= false possessive= true /> speed dial ; $title_data = null; } // Wrap in an exception handler in case the max is reached try { $facebook->api_client->feed_publishTemplatizedAction($title_template, $title_data, $body_template, , , null, null, null, null, null, null, null, null, $target_id, null); } catch (Exception $ex) { // maybe do something } }