/**
* Get feature collection of a layer.
*
* @param LayerModel|int $layerId The layer database id or layer model.
* @param Filter|null $filter Filter data.
*
* @return FeatureCollection
*
* @throws \InvalidArgumentException If a layer could not be found.
*/
public function getFeatureCollection($layerId, Filter $filter = null)
{
if ($layerId instanceof LayerModel) {
$model = $layerId;
} else {
$model = LayerModel::findByPK($layerId);
}
if (!$model || !$model->active) {
throw new \InvalidArgumentException(sprintf('Could not find layer "%s"', $layerId));
}
if (!$model->cache) {
return $this->mapper->handleGeoJson($model, $filter);
}
$cacheKey = 'feature_layer_' . $model->id;
if ($filter) {
$cacheKey .= '.filter_' . md5($filter->toRequest());
}
if ($this->cache->contains($cacheKey)) {
return $this->cache->fetch($cacheKey);
}
$collection = $this->mapper->handleGeoJson($model, $filter);
$this->cache->save($cacheKey, $collection, $model->cacheLifeTime);
return $collection;
}
/**
* Parse the layer grouped value into the layer tree.
*
* @param int $value The layer id.
*
* @return string
*/
public function parseLayerGroup($value)
{
$label = '';
do {
$layer = LayerModel::findByPK($value);
if ($layer) {
if ($label) {
$label = '/' . $label;
}
$label = $layer->title . ' [' . $layer->id . ']' . $label;
$value = $layer->pid;
} else {
$value = false;
}
} while ($value > 0);
return $label ?: '/';
}
/**
* Get feature collection of a layer.
*
* @param LayerModel|int $layerId The layer database id or layer model.
* @param Filter|null $filter Filter data.
*
* @return FeatureCollection
*
* @throws \InvalidArgumentException If a layer could not be found.
*/
public function getFeatureCollection($layerId, Filter $filter = null)
{
if ($layerId instanceof LayerModel) {
$model = $layerId;
} else {
$model = LayerModel::findByPK($layerId);
}
if (!$model || !$model->active) {
throw new \InvalidArgumentException(sprintf('Could not find layer "%s"', $layerId));
}
return $this->mapper->handleGeoJson($model, $filter);
}
