}
$columnlayoutoptions = array();
$columnlayouts = get_records_assoc('view_layout_columns');
foreach ($columnlayouts as $layout => $percents) {
$percentswidths = str_replace(',', ' - ', $percents->widths);
$columnlayoutoptions[$layout] = $percentswidths;
}
// provide a simple default to build custom layouts with
$defaultcustomlayout = View::default_columnsperrow();
$defaultlayout = get_record('view_layout_columns', 'columns', $defaultcustomlayout[1]->columns, 'widths', $defaultcustomlayout[1]->widths);
$clnumcolumnsdefault = $defaultlayout->columns;
$clwidths = $defaultlayout->widths;
// Ready custom layout preview.
$defaultlayoutpreviewdata['layout']['row1'] = $defaultcustomlayout[1]->widths;
$defaultlayoutpreviewdata['text'] = get_string($defaultcustomlayout[1]->widths, 'view');
$defaultlayoutpreview = new LayoutPreviewImage($defaultlayoutpreviewdata);
$inlinejavascript = <<<JAVASCRIPT
function get_max_custom_rows() {
return {$maxlayoutrows};
}
addLoadEvent(function () {
formchangemanager.add("viewlayout");
});
JAVASCRIPT;
$elements = array('viewid' => array('type' => 'hidden', 'value' => $view->get('id')));
$elements['customlayoutnumrows'] = array('type' => 'hidden', 'value' => 1);
$elements['layoutselect'] = array('type' => 'hidden', 'value' => $currentlayout, 'sesskey' => $USER->get('sesskey'));
$elements['layoutfallback'] = array('type' => 'hidden', 'value' => $defaultlayout->id);
public function addcustomlayout($values)
{
require_once get_config('libroot') . 'layoutpreviewimage.php';
$require = array('numrows');
foreach ($require as $require) {
if (!array_key_exists($require, $values) || empty($values[$require])) {
throw new ParamOutOfRangeException(get_string('missingparam' . $require, 'error'));
}
}
$numrows = $values['numrows'];
$alttext = '';
$rowscolssql = '';
$rowscols = array();
for ($i = 0; $i < $numrows; $i++) {
if (array_key_exists('row' . ($i + 1), $values)) {
$rowscolssql .= '(row = ' . ($i + 1) . ' AND columns = ' . $values['row' . ($i + 1)] . ')';
if ($i != $numrows - 1) {
$rowscolssql .= ' OR ';
}
$widths = get_field('view_layout_columns', 'widths', 'id', $values['row' . ($i + 1)]);
$hyphenatedwidths = str_replace(',', '-', $widths);
$alttext .= $hyphenatedwidths;
if ($i != $numrows - 1) {
$alttext .= ' / ';
}
$rowscols[$i + 1] = $values['row' . ($i + 1)];
}
}
$owner = $this->owner;
$group = $this->group;
$institution = $this->institution;
if (!empty($group)) {
$owner = null;
$andclause = 'AND ucl.group = ?';
$andclausevalue = $group;
} else {
if (!empty($institution)) {
$owner = null;
$andclause = 'AND ucl.institution = ?';
$andclausevalue = $institution;
} else {
if (isset($owner)) {
$andclause = 'AND ucl.usr = ?';
$andclausevalue = $owner;
} else {
// no group or owner or institution set
// site pages should have institution set
throw new SystemException("View::addcustomlayout: No owner, group or institution set for view.");
}
}
}
// check for existing layout
$sql = 'SELECT vlrc.viewlayout AS id
FROM
{view_layout} vl
INNER JOIN {view_layout_rows_columns} vlrc
ON vl.id = vlrc.viewlayout
INNER JOIN (
SELECT
viewlayout, COUNT(*)
FROM {view_layout_rows_columns}
GROUP BY viewlayout
HAVING COUNT(*) = ?
) vlrc2
ON vlrc.viewlayout = vlrc2.viewlayout
INNER JOIN {usr_custom_layout} ucl
ON ucl.layout = vl.id
WHERE (' . $rowscolssql . ')
AND (
vl.iscustom = 0
OR (
vl.iscustom = 1 ' . $andclause . '
)
)
GROUP BY vlrc.viewlayout
HAVING count(*) = ?
LIMIT 1';
$layoutids = get_records_sql_array($sql, array($numrows, $andclausevalue, $numrows));
if ($layoutids) {
$data = array('layoutid' => $layoutids[0]->id, 'newlayout' => 0);
return $data;
} else {
db_begin();
// no existing layout of this kind, create it
$newlayoutid = insert_record('view_layout', (object) array('rows' => $numrows, 'iscustom' => 1), 'id', true);
if (!$newlayoutid) {
db_rollback();
throw new SystemException("View::addcustomlayout: Couldn't create new layout record.");
}
if (isset($owner)) {
$newcustomlayout = insert_record('usr_custom_layout', (object) array('usr' => $owner, 'group' => null, 'institution' => null, 'layout' => $newlayoutid));
} else {
if (isset($group)) {
$newcustomlayout = insert_record('usr_custom_layout', (object) array('usr' => null, 'group' => $group, 'institution' => null, 'layout' => $newlayoutid));
} else {
if (isset($institution)) {
$newcustomlayout = insert_record('usr_custom_layout', (object) array('usr' => null, 'group' => null, 'institution' => $institution, 'layout' => $newlayoutid));
}
}
}
if (!$newcustomlayout) {
db_rollback();
throw new SystemException("View::addcustomlayout: Couldn't create new usr custom layout record.");
}
for ($i = 0; $i < $numrows; $i++) {
if (array_key_exists($i + 1, $rowscols)) {
$widths = get_field('view_layout_columns', 'widths', 'id', $rowscols[$i + 1]);
$structure['layout']['row' . ($i + 1)] = $widths;
$newrec = insert_record('view_layout_rows_columns', (object) array('viewlayout' => $newlayoutid, 'row' => $i + 1, 'columns' => $rowscols[$i + 1]));
if (!$newrec) {
db_rollback();
throw new SystemException("View::addcustomlayout: Couldn't create new vlrc record.");
}
}
}
db_commit();
// Generate new custom layout preview.
$structure['text'] = $alttext;
$layoutpreview = new LayoutPreviewImage($structure);
$preview = $layoutpreview->create_preview();
$data = array('layoutid' => $newlayoutid, 'newlayout' => 1, 'layoutpreview' => $preview, 'text' => $structure['text']);
return $data;
}
}
public function updatecustomlayoutpreview($values)
{
global $THEME;
require_once get_config('libroot') . 'layoutpreviewimage.php';
$require = array('numrows');
foreach ($require as $require) {
if (!array_key_exists($require, $values) || empty($values[$require])) {
throw new ParamOutOfRangeException(get_string('missingparam' . $require, 'error'));
}
}
$numrows = $values['numrows'];
$collayouts = array();
for ($i = 0; $i < $numrows; $i++) {
if (array_key_exists('row' . ($i + 1), $values)) {
$collayouts['row' . ($i + 1)] = $values['row' . ($i + 1)];
}
}
$previewimage = 'vl-';
$alttext = '';
$customlayout = array();
for ($i = 0; $i < $numrows; $i++) {
$id = $collayouts['row' . ($i + 1)];
$widths = get_field('view_layout_columns', 'widths', 'id', $id);
$hyphenatedwidths = str_replace(',', '-', $widths);
$customlayout[$i + 1] = $hyphenatedwidths;
$previewimage .= $hyphenatedwidths;
$alttext .= $hyphenatedwidths;
if ($i != $numrows - 1) {
$previewimage .= '_';
$alttext .= ' / ';
}
}
if (LayoutPreviewImage::preview_exists($previewimage)) {
$img = get_config('wwwroot') . 'thumb.php?type=customviewlayout&cvl=' . $previewimage;
$data = array('data' => $img, 'alttext' => $alttext, 'newimage' => 0);
return $data;
} else {
// generate thumbnail images with GD
$data = array();
$data['layout'] = $customlayout;
$data['description'] = 'test';
$data['owner'] = 1;
$previewlayoutimage = new LayoutPreviewImage($data);
$newpreviewimage = $previewlayoutimage->create_preview();
if ($newpreviewimage) {
$img = get_config('wwwroot') . 'thumb.php?type=customviewlayout&cvl=' . $previewimage;
$data = array('data' => $img, 'alttext' => $alttext, 'newimage' => 1);
return $data;
} else {
$msg = '<p>' . get_string('previewimagegenerationfailed', 'error') . '</p>';
$data = array('data' => $msg, 'alttext' => $alttext, 'newimage' => 0);
return $data;
}
}
}
