tbl_gis_visualization.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * handles creation of the GIS visualizations.
   5  *
   6  * @package PhpMyAdmin
   7  */
   8
   9 require_once 'libraries/common.inc.php';
  10
  11 // Runs common work
  12 require_once 'libraries/db_common.inc.php';
  13 $url_params['goto'] = $cfg['DefaultTabDatabase'];
  14 $url_params['back'] = 'sql.php';
  15
  16 // Import visualization functions
  17 require_once 'libraries/gis_visualization.lib.php';
  18
  19 $response = PMA_Response::getInstance();
  20 // Throw error if no sql query is set
  21 if (! isset($sql_query) || $sql_query == '') {
  22     $response->isSuccess(false);
  23     $response->addHTML(
  24         PMA_Message::error(__('No SQL query was set to fetch data.'))
  25     );
  26     exit;
  27 }
  28
  29 // Execute the query and return the result
  30 $result = PMA_DBI_try_query($sql_query);
  31 // Get the meta data of results
  32 $meta = PMA_DBI_get_fields_meta($result);
  33
  34 // Find the candidate fields for label column and spatial column
  35 $labelCandidates = array(); $spatialCandidates = array();
  36 foreach ($meta as $column_meta) {
  37     if ($column_meta->type == 'geometry') {
  38         $spatialCandidates[] = $column_meta->name;
  39     } else {
  40         $labelCandidates[] = $column_meta->name;
  41     }
  42 }
  43
  44 // Get settings if any posted
  45 $visualizationSettings = array();
  46 if (PMA_isValid($_REQUEST['visualizationSettings'], 'array')) {
  47     $visualizationSettings = $_REQUEST['visualizationSettings'];
  48 }
  49
  50 if (! isset($visualizationSettings['labelColumn']) && isset($labelCandidates[0])) {
  51     $visualizationSettings['labelColumn'] = '';
  52 }
  53
  54 // If spatial column is not set, use first geometric colum as spatial column
  55 if (! isset($visualizationSettings['spatialColumn'])) {
  56     $visualizationSettings['spatialColumn'] = $spatialCandidates[0];
  57 }
  58
  59 // Convert geometric columns from bytes to text.
  60 $modified_query = PMA_GIS_modifyQuery($sql_query, $visualizationSettings);
  61 $modified_result = PMA_DBI_try_query($modified_query);
  62
  63 $data = array();
  64 while ($row = PMA_DBI_fetch_assoc($modified_result)) {
  65     $data[] = $row;
  66 }
  67
  68 if (isset($_REQUEST['saveToFile'])) {
  69     $response->disable();
  70     $file_name = $_REQUEST['fileName'];
  71     if ($file_name == '') {
  72         $file_name = $visualizationSettings['spatialColumn'];
  73     }
  74
  75     $save_format = $_REQUEST['fileFormat'];
  76     PMA_GIS_saveToFile($data, $visualizationSettings, $save_format, $file_name);
  77     exit();
  78 }
  79
  80 $header = $response->getHeader();
  81 $scripts = $header->getScripts();
  82 $scripts->addFile('openlayers/OpenLayers.js');
  83 $scripts->addFile('jquery/jquery.svg.js');
  84 $scripts->addFile('tbl_gis_visualization.js');
  85 $scripts->addFile('OpenStreetMap.js');
  86
  87 // If all the rows contain SRID, use OpenStreetMaps on the initial loading.
  88 if (! isset($_REQUEST['displayVisualization'])) {
  89     $visualizationSettings['choice'] = 'useBaseLayer';
  90     foreach ($data as $row) {
  91         if ($row['srid'] == 0) {
  92             unset($visualizationSettings['choice']);
  93             break;
  94         }
  95     }
  96 }
  97
  98 $svg_support = (PMA_USR_BROWSER_AGENT == 'IE' && PMA_USR_BROWSER_VER <= 8)
  99     ? false : true;
 100 $format = $svg_support ? 'svg' : 'png';
 101
 102 // get the chart and settings after chart generation
 103 $visualization = PMA_GIS_visualizationResults(
 104     $data, $visualizationSettings, $format
 105 );
 106
 107 /**
 108  * Displays the page
 109  */
 110 ?>
 111 <!-- Display visualization options -->
 112 <div id="div_view_options">
 113 <fieldset>
 114     <legend><?php echo __('Display GIS Visualization'); ?></legend>
 115     <div style="width: 400px; float: left;">
 116     <form method="post" action="tbl_gis_visualization.php">
 117     <?php echo PMA_generate_common_hidden_inputs($url_params); ?>
 118     <table class="gis_table">
 119     <tr><td><label for="labelColumn"><?php echo __("Label column"); ?></label></td>
 120         <td><select name="visualizationSettings[labelColumn]" id="labelColumn">
 121             <option value=""><?php echo __("-- None --"); ?></option>
 122         <?php
 123
 124 foreach ($labelCandidates as $labelCandidate) {
 125     echo('<option value="' . htmlspecialchars($labelCandidate) . '"');
 126     if ($labelCandidate == $visualizationSettings['labelColumn']) {
 127         echo(' selected="selected"');
 128     }
 129     echo('>' . htmlspecialchars($labelCandidate) . '</option>');
 130 }
 131         ?>
 132         </select></td>
 133     </tr>
 134
 135     <tr><td><label for="spatial Column"><?php echo __("Spatial column"); ?></label></td>
 136         <td><select name="visualizationSettings[spatialColumn]" id="spatialColumn">
 137         <?php
 138
 139 foreach ($spatialCandidates as $spatialCandidate) {
 140     echo('<option value="' . htmlspecialchars($spatialCandidate) . '"');
 141     if ($spatialCandidate == $visualizationSettings['spatialColumn']) {
 142         echo(' selected="selected"');
 143     }
 144     echo('>' . htmlspecialchars($spatialCandidate) . '</option>');
 145 }
 146         ?>
 147         </select></td>
 148     </tr>
 149     <tr><td></td>
 150         <td class="button"><input type="submit" name="displayVisualizationBtn" value="<?php echo __('Redraw'); ?>" /></td>
 151     </tr>
 152 <?php
 153 if (! $GLOBALS['PMA_Config']->isHttps()) {
 154     ?>
 155     <tr><td class="choice" colspan="2">
 156         <input type="checkbox" name="visualizationSettings[choice]" id="choice" value="useBaseLayer"
 157     <?php
 158     if (isset($visualizationSettings['choice'])) {
 159         echo(' checked="checked"');
 160     }
 161     ?>
 162         />
 163         <label for="choice"><?php echo __("Use OpenStreetMaps as Base Layer"); ?></label>
 164     </td></tr>
 165     <?php
 166 }
 167 ?>
 168     </table>
 169     <input type="hidden" name="displayVisualization" value="redraw">
 170     <input type="hidden" name="sql_query" value="<?php echo htmlspecialchars($sql_query); ?>" />
 171     </form>
 172     </div>
 173
 174     <div  style="float:left;">
 175     <form method="post" class="disableAjax"  action="tbl_gis_visualization.php">
 176     <?php echo PMA_generate_common_hidden_inputs($url_params); ?>
 177     <table class="gis_table">
 178     <tr><td><label for="fileName"><?php echo __("File name"); ?></label></td>
 179         <td><input type="text" name="fileName" id="fileName" /></td>
 180     </tr>
 181     <tr><td><label for="fileFormat"><?php echo __("Format"); ?></label></td>
 182         <td><select name="fileFormat" id="fileFormat">
 183             <option value="png">PNG</option>
 184             <option value="pdf">PDF</option>
 185             <?php
 186
 187 if ($svg_support) {
 188     echo ('<option value="svg" selected="selected">SVG</option>');
 189 }
 190             ?>
 191         </select></td>
 192     </tr>
 193     <tr><td></td>
 194         <td class="button"><input type="submit" name="saveToFileBtn" value="<?php echo __('Download'); ?>" /></td>
 195     </tr>
 196     </table>
 197     <input type="hidden" name="saveToFile" value="download">
 198     <input type="hidden" name="sql_query" value="<?php echo htmlspecialchars($sql_query); ?>" />
 199     </form>
 200     </div>
 201
 202     <div style="clear:both;">&nbsp;</div>
 203
 204     <div id="placeholder" style="width:<?php echo htmlspecialchars($visualizationSettings['width']); ?>px;height:<?php echo htmlspecialchars($visualizationSettings['height']); ?>px;">
 205         <?php echo $visualization; ?>
 206     </div>
 207     <div id="openlayersmap"></div>
 208     <input type="hidden" id="pmaThemeImage" value="<?php echo($GLOBALS['pmaThemeImage']); ?>" />
 209     <script language="javascript" type="text/javascript">
 210         function drawOpenLayers()
 211         {
 212             <?php
 213             if (! $GLOBALS['PMA_Config']->isHttps()) {
 214                 echo (PMA_GIS_visualizationResults($data, $visualizationSettings, 'ol'));
 215             }
 216             ?>
 217         }
 218     </script>
 219 </fieldset>
 220 </div>