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adds pagination logic to C4 news

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This commit is contained in:
SimonGschnell
2024-04-12 14:38:01 +02:00
parent eb05922043
commit ad956bef8e
5 changed files with 70 additions and 54 deletions
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application/models/content/News_model.php
+39 -27
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@@ -23,10 +23,21 @@ class News_model extends DB_Model
text IS NOT NULL
AND datum <= NOW() AND (datum_bis IS NULL OR datum_bis >= now()::date)
ORDER BY datum DESC
LIMIT '. $this->escape($limit)
LIMIT ' . $this->escape($limit)
);
}
private function getMaxPageCount($page_size)
{
$this->addSelect(['Count(*)']);
$count = $this->load();
$count = hasData($count) ? getData($count)[0]->count : null;
$floatMaxPageCount = $count / $page_size;
// ceil, to include remaining rows into the last page
return ceil($floatMaxPageCount);
}
/**
* @param string $sprache
* @param string $studiengang_kz
@@ -34,7 +45,7 @@ class News_model extends DB_Model
* @param string $fachbereich_kurzbz
* @param boolean $sichtbar
* @param integer $maxalter
* @param integer $maxnews
* @param integer $page_size
* @param boolean $all
* @param boolean $mischen
*
@@ -42,46 +53,52 @@ class News_model extends DB_Model
*
* @return stdObj
*/
public function getNewsWithContent($sprache, $studiengang_kz, $semester, $fachbereich_kurzbz = null, $sichtbar = true, $maxalter = 0, $maxnews = 0, $all = false, $mischen = true)
public function getNewsWithContent($sprache, $studiengang_kz, $semester, $fachbereich_kurzbz = null, $sichtbar = true, $maxalter = 0, $page = 1, $page_size = 10, $all = false, $mischen = true)
{
if (isset($page) && is_numeric($page) && isset($page_size) && is_numeric($page_size)) {
if ($page > 0 && $page_size > 0) {
$maxPageCount = $this->getMaxPageCount($page_size);
if ($maxPageCount) {
$page = $page % $maxPageCount;
}
$offset = $page * $page_size;
$this->addLimit($page_size, $offset);
}
} else {
$this->addLimit($page_size);
}
$this->addOrder('datum', 'DESC');
$studiengang_kz = trim($studiengang_kz);
$fachbereich_kurzbz = trim($fachbereich_kurzbz);
$where = [];
$params = [];
if (trim($maxalter) != '0')
{
if (trim($maxalter) != '0') {
$where[] = "(now()-datum) < interval ? days";
$params[] = $maxalter;
}
if (!$all)
{
if (!$all) {
$where[] = "datum <= now()";
$where[] = "(datum_bis >= now()::date OR datum_bis IS NULL)";
}
if ($fachbereich_kurzbz != '*')
{
if ($fachbereich_kurzbz == '')
{
if ($fachbereich_kurzbz != '*') {
if ($fachbereich_kurzbz == '') {
$where[] = "fachbereich_kurzbz IS NULL";
}
else
{
} else {
$where[] = "fachbereich_kurzbz = ?";
$params[] = $fachbereich_kurzbz;
}
}
if ($studiengang_kz == '0')
{
if ($studiengang_kz == '0') {
$where[] = "studiengang_kz = ?";
$params[] = $studiengang_kz;
if ($semester === NULL)
$where[] = "semester IS NULL";
elseif ($semester === 0)
$where[] = "semester = 0";
}
elseif ($studiengang_kz != '')
{
} elseif ($studiengang_kz != '') {
$add = $mischen === true ? " OR (studiengang_kz = 0 AND semester IS NULL)" : "";
$where[] = "((studiengang_kz = ? AND semester = ?) OR (studiengang_kz = ? AND semester = 0) OR (studiengang_kz = 0 AND semester = ?)" . $add . ")";
$params[] = $studiengang_kz;
@@ -90,14 +107,14 @@ class News_model extends DB_Model
$params[] = $semester;
}
$this->addJoin('campus.tbl_contentsprache cs', 'content_id');
$where[] = "cs.sichtbar = " . ($sichtbar ? "true" : "false");
$where[] = "cs.sprache = (CASE WHEN EXISTS(SELECT 1 FROM campus.tbl_contentsprache cs2 WHERE cs2.content_id=" . $this->dbTable . ".content_id AND sprache=?) THEN ? ELSE ? END)";
$params[] = $sprache;
$params[] = $sprache;
$params[] = DEFAULT_LANGUAGE;
$where[] = "cs.version = (SELECT MAX(version) FROM campus.tbl_contentsprache cs3 WHERE cs3.content_id=" . $this->dbTable . ".content_id AND cs3.sprache = (CASE WHEN EXISTS(SELECT 1 FROM campus.tbl_contentsprache cs2 WHERE cs2.content_id=" . $this->dbTable . ".content_id AND sprache=?) THEN ? ELSE ? END))";
$params[] = $sprache;
$params[] = $sprache;
@@ -105,11 +122,6 @@ class News_model extends DB_Model
$where = implode(" AND ", $where);
$this->addOrder('datum', 'DESC');
if ($maxnews)
$this->addLimit($maxnews);
$this->db->where($where, NULL, FALSE);
$sql = $this->db->get_compiled_select($this->dbTable);