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authorZach Copley <zach@controlyourself.ca>2009-03-06 13:33:47 -0800
committerZach Copley <zach@controlyourself.ca>2009-03-06 13:33:47 -0800
commitb1f337fe018dd3910c68589a98b0242470743a4c (patch)
tree6e6faed106cec74535ace6f00b3e2499e8cb5e99 /lib/jsonsearchresultslist.php
parent87e5badcb6e8d89e2c85e2bf4be3748b8cd5f940 (diff)
First crack at Twitter-like JSON search results for the API
Diffstat (limited to 'lib/jsonsearchresultslist.php')
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1 files changed, 259 insertions, 0 deletions
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+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * widget for displaying a list of notices
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category Search
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @copyright 2008-2009 Control Yourself, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ */
+
+if (!defined('LACONICA')) {
+ exit(1);
+}
+
+/**
+ * widget-like class for showing JSON search results
+ *
+ * @category Search
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ *
+ */
+
+class JSONSearchResultsList
+{
+ protected $notice; // protected attrs invisible to json_encode()
+ protected $rpp;
+
+ // The below attributes are carefully named so the JSON output from
+ // this obj matches the output from search.twitter.com
+
+ var $results;
+ var $since_id;
+ var $max_id;
+ var $refresh_url;
+ var $results_per_page;
+ var $completed_in;
+ var $page;
+ var $query;
+
+ /**
+ * constructor
+ *
+ * @param Notice $notice stream of notices from DB_DataObject
+ */
+
+ function __construct($notice, $query, $rpp, $page, $since_id = 0)
+ {
+ $this->notice = $notice;
+ $this->query = urlencode($query);
+ $this->results_per_page = $this->rpp = $rpp;
+ $this->page = $page;
+ $this->since_id = $since_id;
+ $this->results = array();
+ }
+
+ /**
+ * show the list of search results
+ *
+ * @return int count of the search results listed.
+ */
+
+ function show()
+ {
+ $cnt = 0;
+
+ $time_start = microtime(true);
+
+ while ($this->notice->fetch() && $cnt <= $this->rpp) {
+ $cnt++;
+
+ // XXX: Hmmm. this depends on desc sort order
+ if (!$this->max_id) {
+ $this->max_id = (int)$this->notice->id;
+ }
+
+ if ($cnt > $this->rpp) {
+ break;
+ }
+
+ $item = new ResultItem($this->notice);
+ array_push($this->results, $item);
+ }
+
+ $time_end = microtime(true);
+ $this->completed_in = $time_end - $time_start;
+
+ // Set other attrs
+
+ $this->refresh_url = '?since_id=' . $this->max_id .
+ '&q=' . $this->query;
+
+ // pagination stuff
+
+ if ($cnt > $this->rpp) {
+ $this->next_page = '?page=' . ($this->page + 1) .
+ '&max_id=' . $this->max_id;
+ if ($this->rpp != 15) {
+ $this->next_page .= '&rpp=' . $this->rpp;
+ }
+ $this->next_page .= '&q=' . $this->query;
+ }
+
+ if ($this->page > 1) {
+ $this->previous_page = '?page=' . ($this->page - 1) .
+ '&max_id=' . $this->max_id;
+ if ($this->rpp != 15) {
+ $this->previous_page .= '&rpp=' . $this->rpp;
+ }
+ $this->previous_page .= '&q=' . $this->query;
+ }
+
+ print json_encode($this);
+
+ return $cnt;
+ }
+}
+
+/**
+ * widget for displaying a single JSON search result
+ *
+ * @category UI
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ * @see JSONSearchResultsList
+ */
+
+class ResultItem
+{
+ /** The notice this item is based on. */
+
+ protected $notice; // protected attrs invisible to json_encode()
+
+ /** The profile associated with the notice. */
+
+ protected $profile;
+
+ // The below attributes are carefully named so the JSON output from
+ // this obj matches the output from search.twitter.com
+
+ var $text;
+ var $to_user_id;
+ var $to_user;
+ var $from_user;
+ var $id;
+ var $from_user_id;
+ var $iso_language_code;
+ var $source;
+ var $profile_image_url;
+ var $created_at;
+
+ /**
+ * constructor
+ *
+ * Also initializes the profile attribute.
+ *
+ * @param Notice $notice The notice we'll display
+ */
+
+ function __construct($notice)
+ {
+ $this->notice = $notice;
+ $this->profile = $notice->getProfile();
+ $this->buildResult();
+ }
+
+ /**
+ * Build a search result object
+ *
+ * This populates the the result in preparation for JSON encoding.
+ *
+ * @return void
+ */
+
+ function buildResult()
+ {
+ $this->text = $this->notice->content;
+ $replier_profile = null;
+
+ if ($this->notice->reply_to) {
+ $reply = Notice::staticGet(intval($notice->reply_to));
+ if ($reply) {
+ $replier_profile = $reply->getProfile();
+ }
+ }
+
+ $this->to_user_id = ($replier_profile) ?
+ intval($replier_profile->id) : null;
+ $this->to_user = ($replier_profile) ?
+ $replier_profile->nickname : null;
+ $this->from_user = $this->profile->nickname;
+ $this->id = $this->notice->id;
+ $this->from_user_id = $this->profile->id;
+
+ $user = User::staticGet('id', $this->profile->id);
+ $this->iso_language_code = $this->user->language;
+
+ $this->source = $this->getSourceLink($this->notice->source);
+
+ $avatar = $this->profile->getAvatar(AVATAR_STREAM_SIZE);
+ $this->profile_image_url = ($avatar) ?
+ $avatar->displayUrl() : Avatar::defaultImage(AVATAR_STREAM_SIZE);
+
+ $this->created_at = date('r', $this->notice->created);
+ }
+
+ /**
+ * Show the source of the notice
+ *
+ * Either the name (and link) of the API client that posted the notice,
+ * or one of other other channels.
+ *
+ * @return string the source of the Notice
+ */
+
+ function getSourceLink($source)
+ {
+ $source_name = _($source);
+ switch ($source) {
+ case 'web':
+ case 'xmpp':
+ case 'mail':
+ case 'omb':
+ case 'api':
+ break;
+ default:
+ $ns = Notice_source::staticGet($source);
+ if ($ns) {
+ $source_name = '<a href="' . $ns->url . '">' . $ns->name . '</a>';
+ }
+ break;
+ }
+ return $source_name;
+ }
+
+}