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<?php /** @file */
// post categories and "save to file" use the same item.file table for storage.
// We will differentiate the different uses by wrapping categories in angle brackets
// and save to file categories in square brackets.
// To do this we need to escape these characters if they appear in our tag.
function file_tag_encode($s) {
return str_replace(array('<','>','[',']'),array('%3c','%3e','%5b','%5d'),$s);
}
function file_tag_decode($s) {
return str_replace(array('%3c','%3e','%5b','%5d'),array('<','>','[',']'),$s);
}
function file_tag_file_query($table,$s,$type = 'file') {
if($type == 'file')
$termtype = TERM_FILE;
else
$termtype = TERM_CATEGORY;
return sprintf(" AND " . (($table) ? dbesc($table) . '.' : '') . "id in (select term.oid from term where term.type = %d and term.term = '%s' and term.uid = " . (($table) ? dbesc($table) . '.' : '') . "uid ) ",
intval($termtype),
protect_sprintf(dbesc($s))
);
}
function term_query($table,$s,$type = TERM_UNKNOWN) {
return sprintf(" AND " . (($table) ? dbesc($table) . '.' : '') . "id in (select term.oid from term where term.type = %d and term.term = '%s' and term.uid = " . (($table) ? dbesc($table) . '.' : '') . "uid ) ",
intval($type),
protect_sprintf(dbesc($s))
);
}
function store_item_tag($uid,$iid,$otype,$type,$term,$url = '') {
if(! $term)
return false;
$r = q("select * from term
where uid = %d and oid = %d and otype = %d and type = %d
and term = '%s' and url = '%s' ",
intval($uid),
intval($iid),
intval($otype),
intval($type),
dbesc($term),
dbesc($url)
);
if($r)
return false;
$r = q("insert into term (uid, oid, otype, type, term, url)
values( %d, %d, %d, %d, '%s', '%s') ",
intval($uid),
intval($iid),
intval($otype),
intval($type),
dbesc($term),
dbesc($url)
);
return $r;
}
function get_terms_oftype($arr,$type) {
$ret = array();
if(! (is_array($arr) && count($arr)))
return $ret;
if(! is_array($type))
$type = array($type);
foreach($type as $t)
foreach($arr as $x)
if($x['type'] == $t)
$ret[] = $x;
return $ret;
}
function format_term_for_display($term) {
$s = '';
if($term['type'] == TERM_HASHTAG)
$s .= '#';
elseif($term['type'] == TERM_MENTION)
$s .= '@';
else
return $s;
if($term['url'])
$s .= '<a href="' . $term['url'] . '">' . htmlspecialchars($term['term']) . '</a>';
else
$s .= htmlspecialchars($term['term']);
return $s;
}
// Tag cloud functions - need to be adpated to this database format
function tagadelic($uid, $count = 0, $authors = '', $flags = 0, $type = TERM_HASHTAG) {
$sql_options = '';
if($flags)
$sql_options .= " and ((item_flags & " . intval($flags) . ") = " . intval($flags) . ") ";
if($authors) {
if(! is_array($authors))
$authors = array($authors);
stringify_array_elms($authors,true);
$sql_options .= " and author_xchan in (" . implode(',',$authors) . ") ";
}
// Fetch tags
$r = q("select term, count(term) as total from term left join item on term.oid = item.id
where term.uid = %d and term.type = %d
and otype = %d and item_restrict = 0 and item_private = 0
$sql_options
group by term order by total desc %s",
intval($uid),
intval($type),
intval(TERM_OBJ_POST),
((intval($count)) ? "limit $count" : '')
);
if(! $r)
return array();
// Find minimum and maximum log-count.
$tags = array();
$min = 1e9;
$max = -1e9;
$x = 0;
foreach($r as $rr) {
$tags[$x][0] = $rr['term'];
$tags[$x][1] = log($rr['total']);
$tags[$x][2] = 0;
$min = min($min,$tags[$x][1]);
$max = max($max,$tags[$x][1]);
$x ++;
}
usort($tags,'tags_sort');
$range = max(.01, $max - $min) * 1.0001;
for($x = 0; $x < count($tags); $x ++) {
$tags[$x][2] = 1 + floor(5 * ($tags[$x][1] - $min) / $range);
}
return $tags;
}
function tags_sort($a,$b) {
if($a[0] == $b[0])
return 0;
return((strtolower($a[0]) < strtolower($b[0])) ? -1 : 1);
}
function tagblock($link,$uid,$count = 0,$authors = '',$flags = 0,$type = TERM_HASHTAG) {
$o = '';
$tab = 0;
$r = tagadelic($uid,$count,$authors,$flags,$type);
if($r) {
$o = '<div class="tagblock widget"><h3>' . t('Tags') . '</h3><div class="tags" align="center">';
foreach($r as $rr) {
$o .= '<a href="'.$link .'/' . '?f=&tag=' . urlencode($rr[0]).'" class="tag'.$rr[2].'">'.$rr[0].'</a> ' . "\r\n";
}
$o .= '</div></div>';
}
return $o;
}
/**
* verbs: [0] = first person singular, e.g. "I want", [1] = 3rd person singular, e.g. "Bill wants"
* We use the first person form when creating an activity, but the third person for use in activities
* FIXME: There is no accounting for verb gender for languages where this is significant. We may eventually
* require obj_verbs() to provide full conjugations and specify which form to use in the $_REQUEST params to this module.
*/
function obj_verbs() {
$verbs = array(
'has' => array( t('have'), t('has')),
'wants' => array( t('want'), t('wants')),
'likes' => array( t('like'), t('likes')),
'dislikes' => array( t('dislike'), t('dislikes')),
);
$arr = array('verbs' => $verbs);
call_hooks('obj_verbs', $arr);
return $arr['verbs'];
}
function obj_verb_selector() {
$verbs = obj_verbs();
$o .= '<select class="obj-verb-selector" name="verb" >';
foreach($verbs as $k => $v) {
$o .= '<option value="' . urlencode($k) . '">' . $v[0] . '</option>';
}
$o .= '</select>';
return $o;
}
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