/** Get entries fullfilling a condition (bibtex & bibfilter) */
function getEntries($options)
{
global $wpdb, $papercite_table_name;
// --- Filter the data
$entries = $this->getData($options["file"], $options);
if ($entries === FALSE) {
$this->addMessage("[Could not find the bibliography file(s) with name [" . htmlspecialchars($options["file"]) . "]");
return false;
}
if (array_key_exists('key', $options)) {
// Select only specified entries
$keys = preg_split("-,-", $options["key"]);
$a = array();
$n = 0;
$result = papercite::getEntriesByKey($entries, $keys);
if (array_key_exists("allow", $options) || array_key_exists("deny", $options) || array_key_exists("author", $options)) {
$this->addMessage("[papercite] Filtering by (key argument) is compatible with filtering by type or author (allow, deny, author arguments)", E_USER_NOTICE);
}
} else {
// Based on the entry types
$allow = Papercite::array_get($options, "allow", "");
$deny = Papercite::array_get($options, "deny", "");
$allow = $allow ? preg_split("-,-", $allow) : array();
$deny = $deny ? preg_split("-,-", $deny) : array();
$author_matcher = new PaperciteAuthorMatcher(Papercite::array_get($options, "author", ""));
$result = array();
$dbs = array();
foreach ($entries as $key => &$outer) {
if (is_array($outer) && $outer[0] == "__DB__") {
$dbs[] = $outer[1];
} else {
foreach ($outer as &$entry) {
$t =& $entry["entrytype"];
if ((sizeof($allow) == 0 || in_array($t, $allow)) && (sizeof($deny) == 0 || !in_array($t, $deny)) && $author_matcher->matches($entry) && Papercite::userFiltersMatch($options["filters"], $entry)) {
$result[] = $entry;
}
}
}
}
// --- Add entries from database
if ($dbs) {
$dbCond = $this->getDbCond($dbs);
// Handles year and entry type by direct SQL
foreach ($allow as &$v) {
$v = '"' . $wpdb->escape($v) . '"';
}
$allowCond = $allow ? "and entrytype in (" . implode(",", $allow) . ")" : "";
foreach ($deny as &$v) {
$v = '"' . $wpdb->escape($v) . '"';
}
$denyCond = $deny ? "and entrytype not in (" . implode(",", $deny) . ")" : "";
// Retrieve and filter further
$st = "SELECT data FROM {$papercite_table_name} WHERE {$dbCond} {$denyCond} {$allowCond}";
$rows = $wpdb->get_col($st);
if ($rows) {
foreach ($rows as $data) {
$entry = maybe_unserialize($data);
if ($author_matcher->matches($entry) && Papercite::userFiltersMatch($options["filters"], $entry)) {
$result[] = $entry;
}
}
}
}
}
return $result;
}
