Copyright (c) 2003, DM Solutions Group Inc. * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. **/ //set the language resource file $szLanguageResource = str_replace("\\","/",dirname(__FILE__))."/ExpressionBuilder.dbf"; // set the flag to setup the mapsession if ( !defined("LOAD_MAPSESSION") ) define("LOAD_MAPSESSION", 1); // include the session handling file (currently only required for MLT) include_once(dirname(__FILE__)."/../session.inc.php"); include_once(dirname(__FILE__)."/../CWC2ButtonCache.php"); // include the layer attribute handling functions include( dirname(__FILE__)."/../LayerAttributes.php" ); // get the form vars $_FORM = array_merge( $_GET, $_POST ); /* ============================================================================ * Define the default properties for the "LIKE" operator * ========================================================================= */ define( "LIKE_WILDCARD", urldecode( $_FORM["wildcard"] ) ); define( "LIKE_SINGLECHAR", urldecode( $_FORM["singlechar"] ) ); define( "LIKE_ESCAPECHAR", urldecode( $_FORM["escape"] ) ); /* ============================================================================ * Determine the layer specific info * ========================================================================= */ // init vars $nCount = 0; $nSelectedLayer = ""; $szSelectedLayerName = ""; $szSelectedLayerConnType = ""; $aszAttributes = array(); $szErrorNotice = ""; $szWFSConnection = ""; $nLayerCount = $oMapSession->oMap->numlayers; $szWFSTypeName = ''; /* ============================================================================ * Get selected WFS layer * ========================================================================= */ // check if selected layer list has been passes through URL $aszLayers = array(); if ( isset( $_FORM["selectedlayers"] ) && strlen( trim( $_FORM["selectedlayers"] ) ) > 0 ) { // put layers into array $aszLayers = explode( ',', $_FORM["selectedlayers"] ); $nTmpCount = count( $aszLayers ); for( $i=0; $i<$nTmpCount; $i++ ) $aszLayers[$i] = trim( $aszLayers[$i] ); } // check for layers from the url if ( count( $aszLayers ) > 0 ) { //convert WMS_TITLE to WMS_NAME ... this should make sure WMS_NAME is //set first but I didn't have time to do that properly ... it is safe //when working with map files coming from Contexts but possibly not //when working with hand-crafted map files for( $i=0; $ioMap->getLayer($j); if ($oLayer->connectiontype == MS_WMS) { if ($aszLayers[$i] == $oLayer->getMetadata( "WMS_TITLE" )) { $aszLayers[$i] = $oLayer->getMetadata( "WMS_NAME" ); } } } } } else { // get list from metadata for ( $i=0; $i<$nLayerCount; $i++ ) { // get layer $oLayer = $oMapSession->oMap->getLayer( $i ); // check metadata if ( $oLayer->getmetadata("selected") == 1 ) { // add to the list of layers array_push( $aszLayers, $oLayer->name ); } } } // check for an empty first one if ( $aszLayers[0] == '' ) array_shift( $aszLayers ); // update the active layer count $nCount = count( $aszLayers ); // only process the first WMS or WFS layer for ( $i=0; $i<$nCount; $i++ ) { // get layer by name $oLayer = $oMapSession->oMap->getLayerbyName( $aszLayers[$i] ); if ($oLayer == null) { //desperate attempt to find layer ... for ($j=0; $j<$oMapSession->oMap->numlayers; $j++) { $oLayer = $oMapSession->oMap->getLayer( $j ); if ($oLayer->getMetaData( "WMS_NAME" ) == $aszLayers[$i] || $oLayer->getMetaData( "WMS_TITLE" ) == $aszLayers[$i] ) { break; } } } // only process WMS and WFS layers if ( $oLayer->connectiontype == MS_WFS || $oLayer->connectiontype == MS_WMS ) { // record layer index $nSelectedLayer = $oLayer->index; // store the layer name to use $szSelectedLayerName = $oLayer->name; // store the connection type $szSelectedLayerConnType = $oLayer->connectiontype; // process according to layer type switch( $oLayer->connectiontype ) { case MS_WFS: // record the connection string $szWFSConnection = $oLayer->connection; break; case MS_WMS: // get WFS the connection string $szSelectedLayerName = $oLayer->getMetadata( "WMS_NAME" ); //echo $szSelectedLayerName."
"; $aszWFSInfo = getWFSConnection( $oLayer->connection, $szSelectedLayerName ); // function can return false instead of array! if ($aszWFSInfo != false) { $szWFSConnection = $aszWFSInfo['wfs']; //echo $szWFSConnection."
"; // loop and build typename foreach( $aszWFSInfo['typename'] as $szTypeName ) { $szWFSTypeName .= $szTypeName.','; } // remove trailing ',' if ( substr( $szWFSTypeName, -1, 1 ) == ',' ) { $szWFSTypeName = substr( $szWFSTypeName, 0, -1 ); } // check for false (meaning no associated WFS) if ( $szWFSConnection === false ) { // give error $szErrorNotice = $oMLT->get("30", 'An invalid WMS layer was '. 'selected. A WMS layer must have a WFS associated with '. 'it in order to be filtered.' ); // reset $szWFSConnection = ''; $nSelectedLayer = ''; $szSelectedLayerName = ''; } } else { // give error $szErrorNotice = $oMLT->get("30", 'An invalid WMS layer was '. 'selected. A WMS layer must have a WFS associated with '. 'it in order to be filtered.' ); // reset $szWFSConnection = ''; $nSelectedLayer = ''; $szSelectedLayerName = ''; } break; } // save expressions if necessary if ( isset( $_FORM['txtSaveExpressions'] ) && $_FORM['txtSaveExpressions'] == 1 ) { // store these as current layer's metadata expression $oLayer = $oMapSession->oMap->getLayer( $nSelectedLayer ); $oLayer->setMetadata( 'cham_x_build_expressions', $_FORM['txtExpressions'] ); } // get expressions from metadata $_FORM['txtExpressions'] = $oLayer->getMetadata( 'cham_x_build_expressions' ); // one layer has been processed so exit loop break; } // for loop } /* ============================================================================ * Create javascript necessary to load saved expressions * ========================================================================= */ if ( isset( $_FORM['txtExpressions'] ) && strlen( $_FORM['txtExpressions'] ) > 0 ) { $szJavascriptExpressions = buildJavascriptExpressions( $_FORM['txtExpressions'] ); } /* ============================================================================ * Process attribute info * ========================================================================= */ if ( strlen( trim( $szWFSConnection ) ) > 0 ) { // check the the WFS online resource contains the necessary params //echo "fixing WFS url $szWFSConnection for layer $szSelectedLayerName
"; $szWFSConnection = fixWFSURL( $szWFSConnection, $szWFSTypeName ); // get the attribute types $aszAttributes = getAttributeTypes( $szWFSConnection. 'request=describefeaturetype', $szSelectedLayerName ); // build list of attrtibutes $szAttributeOptions = ''; $szLayerType = ''; foreach( $aszAttributes as $key=>$value ) { // skip layer type if ( $key == 'LayerType' ) { $szLayerType = $value; continue; } // assemble string $szTmpAttribute = $key." (".$value.")"; // create new option list item $szAttributeOptions .= "\n"; } } else { // set error message $szErrorNotice = $oMLT->get("20", "Invalid layer or none selected. ". "Please ensure that the selected layer is a WFS or WMS layer." ); } /* ============================================================================ * Build style select * ========================================================================= */ if ( isset($_FORM['styles'] ) && strlen( $_FORM['styles'] ) > 0 ) { // get title $szTmpTitle = $oMLT->get("28", "Select SLD"); // loop and build list of drop down options $aszStyles = explode( '|', $_FORM['styles'] ); $nSLDCount = count( $aszStyles ); $szStyleOptions = ''; for ( $i=0; $i<$nSLDCount; $i++ ) { // separate the name from the sld file // [0] = name // [1] = sld url // [2] = namedlayer // [3] = layer type $aszSplit = explode( '@', $aszStyles[$i] ); if (!isset($szLayerType) || strcasecmp($szLayerType, 'MS_LAYER_'.$aszSplit[3] ) == 0) { $szStyleOptions .= ''; } } // set $szStyleForm = <<

{$szTmpTitle}

EOT; /* ============================================================================ * Build layer type HTML * ========================================================================= */ if ( !isset( $szLayerType ) || strlen( $szLayerType ) <= 0 ) { $szLayerTypeHTML = '

'. $oMLT->get('33', 'Unable to determine layer data type. Please specify the underlying data type for this layer.'). '

'. ''. ''. ''. $oMLT->get("31", "Type"). ': '; } else { if ( !isset( $szLayerType ) ) $szLayerType = ''; $szLayerTypeHTML = ''; } } function buildJavascriptExpressions( $szExpressionsString ) { // explode individual expressions $aszExpressions = explode( '|@|', $szExpressionsString ); // init vars $szJavascriptExpressions = ""; // process each expression foreach( $aszExpressions as $szExpression ) { // skip if empty if ( strlen( trim( $szExpression ) ) <= 0 ) continue; // break apart $aszExpComponents = explode( '|', $szExpression ); // create javascript to add expressions $szJavascriptExpressions .= 'addExpression( "'. $aszExpComponents[0].'", "'. $aszExpComponents[1].'", "'. $aszExpComponents[2].'", "'. $aszExpComponents[4].'", "'. $aszExpComponents[5].'", "'. $aszExpComponents[2].'", "'. $aszExpComponents[3].'", "'. $aszExpComponents[4].'", "'. $aszExpComponents[5].'" );'; } // return return $szJavascriptExpressions; } ?>