public function load($p)
{
$rez = array('success' => true, 'data' => array('html' => '<div class="msg">Please select a case ...</div>'));
if (empty($p['path'])) {
return $rez;
}
$this->params = $p;
$this->pathProperties = Path::getPathProperties($p['path']);
$pp =& $this->pathProperties;
if (empty($pp['case_id'])) {
return $rez;
}
/* define graph title */
$graphTitle = empty($pp['name']) ? 'Graph' : $pp['name'];
$graphTitle = str_replace(array(' ', '.', '\'', '"', '-', '/', '\\', '~'), '_', $graphTitle);
/* end of define graph title */
$solrNodes = $this->getGraphNodes($pp['case_id']);
if (empty($solrNodes)) {
return array('success' => true, 'data' => array('html' => '<div class="msg">Nothing to display.</div>'));
}
$graphNodes = $solrNodes;
$this->prepareGraphNodes($graphNodes);
$this->setGraphTimeline($graphNodes);
$rez = '';
/* print graph timeline nodes */
$rez .= "{\n node [shape=plaintext, fontsize=7, fontcolor=\"gray\", tooltip=\"timeline\"];\n /* the time-line graph */ \n";
$rez .= 't' . implode(' -> t', array_keys($this->timeline)) . " [dir=none, color=\"gray\"];\n}\n";
for ($i = 0; $i < sizeof($this->timeline); $i++) {
$rez .= 't' . $i . '[label="' . $this->timeline[$i] . '"];' . "\n";
}
/* end of print graph timeline nodes */
/* align graph nodes to corresponding timeline node */
foreach ($graphNodes as $node) {
$rez .= "\n{rank=same; " . $node['t'] . "; n" . $node['id'] . "; }";
}
/* end of align graph nodes to corresponding timeline node */
/* defining nodes */
foreach ($graphNodes as $node) {
/* check if its a composite node with left and/or right sides
and replace it's label with corresponding nodes table */
$leftSide = '';
if (!empty($node['leftSideNodes'])) {
foreach ($node['leftSideNodes'] as $subnode) {
$leftSide .= '<td href="#' . $subnode['id'] . '"' . ' bgcolor="' . $subnode['bgcolor'] . '"' . ' PORT="n' . $subnode['id'] . '_' . $node['id'] . '"' . (empty($subnode[$this->hintField]) ? '' : ' tooltip="' . $subnode[$this->hintField] . '"') . ' valign="middle">' . $subnode[$this->labelField] . '</td>';
}
}
$rightSide = '';
if (!empty($node['rightSideNodes'])) {
foreach ($node['rightSideNodes'] as $subnode) {
$rightSide .= '<td href="#' . $subnode['id'] . '"' . ' bgcolor="' . $subnode['bgcolor'] . '"' . ' PORT="n' . $subnode['id'] . '_' . $node['id'] . '"' . (empty($subnode[$this->hintField]) ? '' : ' tooltip="' . $subnode[$this->hintField] . '"') . ' valign="middle">' . $subnode[$this->labelField] . '</td>';
}
}
if (!empty($leftSide) || !empty($rightSide)) {
$node[$this->labelField] = '< <table border="0" cellborder="1" cellspacing="0" cellpadding="4" ' . 'style="border: 0 !important; border-collapse: collapse !important"><tr>' . $leftSide . '<td bgcolor="' . $this->colors['yellow'] . '"' . ' PORT="n' . $node['id'] . '"' . ' valign="middle"' . (empty($node[$this->hintField]) ?: ' tooltip="' . addslashes($node[$this->hintField]) . '"') . '>' . $node[$this->labelField] . '</td>' . $rightSide . '</tr></table> >';
} else {
$node[$this->labelField] = '"' . addslashes($node[$this->labelField]) . '"';
}
/* end of check if its a composite node with left and/or right sides
and replace it's label with corresponding nodes table */
$rez .= "\n n" . $node['id'] . ' [shape="' . ($node['shape'] ? $node['shape'] : 'ellipse') . '"' . (empty($node['style']) ? '' : ', style="' . $node['style'] . '"') . (empty($node['fillcolor']) ? '' : ', fillcolor="' . $node['fillcolor'] . '"') . (isset($node['margin']) ? ', margin="' . $node['margin'] . '"' : '') . (isset($node['penwidth']) ? ', penwidth="' . $node['penwidth'] . '"' : '') . (empty($node[$this->hintField]) ? '' : ', tooltip="' . addslashes($node[$this->hintField]) . '"') . ', label=' . $node[$this->labelField] . ', URL="#' . $node['id'] . '"];';
$linkedNodeIds = $this->getNodeLinks($node['id']);
foreach ($linkedNodeIds as $ln) {
$rez .= "\n" . 'n' . $ln . ' -> n' . $node['id'] . ';';
}
}
// enclosing all nodes data in header and footer
$rez = 'digraph "' . $graphTitle . '" {
spline=false;
node [margin="0.05,0.05", shape=plaintext, fontname="tahoma", fontsize=8, height=0.2, width=0.2];
edge [arrowsize=0.5, fontsize=7];
ranksep=0.25;
nodesep=0.25;
' . $rez . "\n}";
/* save result to a temporary file for passing it to graphviz */
$t = tempnam(sys_get_temp_dir(), 'gv');
file_put_contents($t, $rez);
//also store gv file in core files path for any case
/* if parametter "d" is passed in GET, then save graph is requested.
Generate png file and write it directly to output */
if (@$_GET['d'] == 1) {
$cmd = "dot -Tpng -o" . $t . ".png " . $t;
exec($cmd);
header('Content-Type: image/png');
header('Content-Disposition: attachment; filename="' . date('Y-m-d') . ' - Граф дела ' . addslashes($graphTitle) . '.png"');
echo file_get_contents($t . '.png');
} else {
//generate and return svg
$cmd = "dot -Tsvg -o" . $t . ".svg " . $t;
exec($cmd);
$rez = file_get_contents($t . '.svg');
}
/* delete temporary files */
unlink($t);
unlink($t . '.svg');
/* end of delete temporary files */
return array('success' => true, 'data' => array('html' => $rez, 'nodes' => $solrNodes));
}
