public function matrixnavigation_action()
{
$tag_matrix_entries_number = 9;
$tag_subtags_number = 6;
if (!Request::get("tags")) {
$this->topics = LernmarktplatzTag::findBest($tag_matrix_entries_number);
$this->materialien = array();
} else {
$tags = $this->tag_history = explode(",", Request::get("tags"));
$this->without_tags = array();
$tag_to_search_for = array_pop($tags);
foreach (LernmarktplatzTag::findBest($tag_matrix_entries_number, true) as $related_tag) {
if ($related_tag['tag_hash'] !== $this->tag_history[0]) {
$this->without_tags[] = $related_tag['tag_hash'];
}
}
//array_shift($this->tag_history);
foreach ($tags as $tag) {
foreach (LernmarktplatzTag::findRelated($tag, $this->without_tags, $tag_subtags_number, true) as $related_tag) {
$this->without_tags[] = $related_tag['tag_hash'];
}
}
$this->topics = LernmarktplatzTag::findRelated($tag_to_search_for, $this->without_tags, $tag_subtags_number);
$this->materialien = LernmarktplatzMaterial::findByTagHash($tag_to_search_for);
}
$output = array();
$output['breadcrumb'] = $this->render_template_as_string("market/_breadcrumb");
$output['matrix'] = $this->render_template_as_string("market/_matrix");
$output['materials'] = $this->render_template_as_string("market/_materials");
$this->render_json($output);
}
