120 lines
3.4 KiB
PHP
120 lines
3.4 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* handles creation of the GIS visualizations.
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*
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* @package PhpMyAdmin
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*/
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require_once 'libraries/common.inc.php';
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// Runs common work
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require_once 'libraries/db_common.inc.php';
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$url_params['goto'] = $cfg['DefaultTabDatabase'];
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$url_params['back'] = 'sql.php';
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// Import visualization functions
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require_once 'libraries/tbl_gis_visualization.lib.php';
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$response = PMA_Response::getInstance();
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// Throw error if no sql query is set
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if (! isset($sql_query) || $sql_query == '') {
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$response->isSuccess(false);
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$response->addHTML(
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PMA_Message::error(__('No SQL query was set to fetch data.'))
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);
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exit;
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}
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// Execute the query and return the result
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$result = $GLOBALS['dbi']->tryQuery($sql_query);
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// Get the meta data of results
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$meta = $GLOBALS['dbi']->getFieldsMeta($result);
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// Find the candidate fields for label column and spatial column
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$labelCandidates = array(); $spatialCandidates = array();
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foreach ($meta as $column_meta) {
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if ($column_meta->type == 'geometry') {
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$spatialCandidates[] = $column_meta->name;
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} else {
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$labelCandidates[] = $column_meta->name;
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}
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}
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// Get settings if any posted
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$visualizationSettings = array();
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if (PMA_isValid($_REQUEST['visualizationSettings'], 'array')) {
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$visualizationSettings = $_REQUEST['visualizationSettings'];
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}
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if (! isset($visualizationSettings['labelColumn']) && isset($labelCandidates[0])) {
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$visualizationSettings['labelColumn'] = '';
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}
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// If spatial column is not set, use first geometric colum as spatial column
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if (! isset($visualizationSettings['spatialColumn'])) {
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$visualizationSettings['spatialColumn'] = $spatialCandidates[0];
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}
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// Convert geometric columns from bytes to text.
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$modified_query = PMA_GIS_modifyQuery($sql_query, $visualizationSettings);
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$modified_result = $GLOBALS['dbi']->tryQuery($modified_query);
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$data = array();
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while ($row = $GLOBALS['dbi']->fetchAssoc($modified_result)) {
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$data[] = $row;
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}
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if (isset($_REQUEST['saveToFile'])) {
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$response->disable();
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$file_name = $_REQUEST['fileName'];
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if ($file_name == '') {
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$file_name = $visualizationSettings['spatialColumn'];
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}
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$save_format = $_REQUEST['fileFormat'];
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PMA_GIS_saveToFile($data, $visualizationSettings, $save_format, $file_name);
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exit();
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}
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$header = $response->getHeader();
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$scripts = $header->getScripts();
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$scripts->addFile('openlayers/OpenLayers.js');
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$scripts->addFile('jquery/jquery.svg.js');
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$scripts->addFile('tbl_gis_visualization.js');
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$scripts->addFile('OpenStreetMap.js');
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// If all the rows contain SRID, use OpenStreetMaps on the initial loading.
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if (! isset($_REQUEST['displayVisualization'])) {
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$visualizationSettings['choice'] = 'useBaseLayer';
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foreach ($data as $row) {
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if ($row['srid'] == 0) {
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unset($visualizationSettings['choice']);
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break;
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}
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}
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}
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$svg_support = (PMA_USR_BROWSER_AGENT == 'IE' && PMA_USR_BROWSER_VER <= 8)
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? false : true;
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$format = $svg_support ? 'svg' : 'png';
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// get the chart and settings after chart generation
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$visualization = PMA_GIS_visualizationResults(
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$data, $visualizationSettings, $format
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);
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/**
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* Displays the page
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*/
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$html = PMA_getHtmlForGisVisualization(
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$url_params, $labelCandidates, $spatialCandidates,
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$visualizationSettings, $sql_query, $visualization, $svg_support,
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$data
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);
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$response->addHTML($html);
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?>
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