[76] | 1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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| 2 | * full list of contributors). Published under the Clear BSD license. |
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| 3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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| 4 | * full text of the license. */ |
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| 5 | |
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| 6 | /** |
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| 7 | * @requires OpenLayers/Format/GML.js |
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| 8 | * @requires OpenLayers/Console.js |
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| 9 | */ |
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| 10 | |
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| 11 | /** |
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| 12 | * Class: OpenLayers.Format.WFS |
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| 13 | * Read/Write WFS. |
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| 14 | * |
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| 15 | * Inherits from: |
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| 16 | * - <OpenLayers.Format.GML> |
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| 17 | */ |
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| 18 | OpenLayers.Format.WFS = OpenLayers.Class(OpenLayers.Format.GML, { |
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| 19 | |
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| 20 | /** |
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| 21 | * Property: layer |
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| 22 | */ |
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| 23 | layer: null, |
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| 24 | |
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| 25 | /** |
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| 26 | * APIProperty: wfsns |
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| 27 | */ |
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| 28 | wfsns: "http://www.opengis.net/wfs", |
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| 29 | |
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| 30 | /** |
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| 31 | * Property: ogcns |
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| 32 | */ |
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| 33 | ogcns: "http://www.opengis.net/ogc", |
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| 34 | |
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| 35 | /* |
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| 36 | * Constructor: OpenLayers.Format.WFS |
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| 37 | * Create a WFS-T formatter. This requires a layer: that layer should |
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| 38 | * have two properties: geometry_column and typename. The parser |
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| 39 | * for this format is subclassed entirely from GML: There is a writer |
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| 40 | * only, which uses most of the code from the GML layer, and wraps |
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| 41 | * it in transactional elements. |
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| 42 | * |
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| 43 | * Parameters: |
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| 44 | * options - {Object} |
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| 45 | * layer - {<OpenLayers.Layer>} |
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| 46 | */ |
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| 47 | |
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| 48 | initialize: function(options, layer) { |
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| 49 | OpenLayers.Format.GML.prototype.initialize.apply(this, [options]); |
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| 50 | this.layer = layer; |
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| 51 | if (this.layer.featureNS) { |
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| 52 | this.featureNS = this.layer.featureNS; |
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| 53 | } |
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| 54 | if (this.layer.options.geometry_column) { |
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| 55 | this.geometryName = this.layer.options.geometry_column; |
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| 56 | } |
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| 57 | if (this.layer.options.typename) { |
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| 58 | this.featureName = this.layer.options.typename; |
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| 59 | } |
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| 60 | }, |
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| 61 | |
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| 62 | /** |
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| 63 | * Method: write |
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| 64 | * Takes a feature list, and generates a WFS-T Transaction |
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| 65 | * |
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| 66 | * Parameters: |
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| 67 | * features - {Array(<OpenLayers.Feature.Vector>)} |
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| 68 | */ |
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| 69 | write: function(features) { |
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| 70 | |
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| 71 | var transaction = this.createElementNS(this.wfsns, 'wfs:Transaction'); |
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| 72 | transaction.setAttribute("version","1.0.0"); |
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| 73 | transaction.setAttribute("service","WFS"); |
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| 74 | for (var i=0; i < features.length; i++) { |
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| 75 | switch (features[i].state) { |
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| 76 | case OpenLayers.State.INSERT: |
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| 77 | transaction.appendChild(this.insert(features[i])); |
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| 78 | break; |
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| 79 | case OpenLayers.State.UPDATE: |
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| 80 | transaction.appendChild(this.update(features[i])); |
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| 81 | break; |
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| 82 | case OpenLayers.State.DELETE: |
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| 83 | transaction.appendChild(this.remove(features[i])); |
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| 84 | break; |
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| 85 | } |
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| 86 | } |
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| 87 | |
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| 88 | return OpenLayers.Format.XML.prototype.write.apply(this,[transaction]); |
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| 89 | }, |
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| 90 | |
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| 91 | /** |
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| 92 | * Method: createFeatureXML |
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| 93 | * |
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| 94 | * Parameters: |
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| 95 | * feature - {<OpenLayers.Feature.Vector>} |
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| 96 | */ |
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| 97 | createFeatureXML: function(feature) { |
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| 98 | var geometryNode = this.buildGeometryNode(feature.geometry); |
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| 99 | var geomContainer = this.createElementNS(this.featureNS, "feature:" + this.geometryName); |
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| 100 | geomContainer.appendChild(geometryNode); |
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| 101 | var featureContainer = this.createElementNS(this.featureNS, "feature:" + this.featureName); |
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| 102 | featureContainer.appendChild(geomContainer); |
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| 103 | for(var attr in feature.attributes) { |
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| 104 | var attrText = this.createTextNode(feature.attributes[attr]); |
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| 105 | var nodename = attr; |
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| 106 | if (attr.search(":") != -1) { |
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| 107 | nodename = attr.split(":")[1]; |
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| 108 | } |
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| 109 | var attrContainer = this.createElementNS(this.featureNS, "feature:" + nodename); |
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| 110 | attrContainer.appendChild(attrText); |
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| 111 | featureContainer.appendChild(attrContainer); |
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| 112 | } |
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| 113 | return featureContainer; |
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| 114 | }, |
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| 115 | |
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| 116 | /** |
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| 117 | * Method: insert |
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| 118 | * Takes a feature, and generates a WFS-T Transaction "Insert" |
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| 119 | * |
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| 120 | * Parameters: |
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| 121 | * feature - {<OpenLayers.Feature.Vector>} |
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| 122 | */ |
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| 123 | insert: function(feature) { |
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| 124 | var insertNode = this.createElementNS(this.wfsns, 'wfs:Insert'); |
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| 125 | insertNode.appendChild(this.createFeatureXML(feature)); |
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| 126 | return insertNode; |
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| 127 | }, |
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| 128 | |
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| 129 | /** |
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| 130 | * Method: update |
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| 131 | * Takes a feature, and generates a WFS-T Transaction "Update" |
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| 132 | * |
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| 133 | * Parameters: |
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| 134 | * feature - {<OpenLayers.Feature.Vector>} |
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| 135 | */ |
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| 136 | update: function(feature) { |
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| 137 | if (!feature.fid) { OpenLayers.Console.userError(OpenLayers.i18n("noFID")); } |
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| 138 | var updateNode = this.createElementNS(this.wfsns, 'wfs:Update'); |
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| 139 | updateNode.setAttribute("typeName", this.featurePrefix + ':' + this.featureName); |
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| 140 | updateNode.setAttribute("xmlns:" + this.featurePrefix, this.featureNS); |
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| 141 | |
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| 142 | var propertyNode = this.createElementNS(this.wfsns, 'wfs:Property'); |
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| 143 | var nameNode = this.createElementNS(this.wfsns, 'wfs:Name'); |
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| 144 | |
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| 145 | var txtNode = this.createTextNode(this.geometryName); |
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| 146 | nameNode.appendChild(txtNode); |
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| 147 | propertyNode.appendChild(nameNode); |
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| 148 | |
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| 149 | var valueNode = this.createElementNS(this.wfsns, 'wfs:Value'); |
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| 150 | |
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| 151 | var geometryNode = this.buildGeometryNode(feature.geometry); |
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| 152 | |
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| 153 | if(feature.layer){ |
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| 154 | geometryNode.setAttribute( |
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| 155 | "srsName", feature.layer.projection.getCode() |
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| 156 | ); |
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| 157 | } |
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| 158 | |
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| 159 | valueNode.appendChild(geometryNode); |
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| 160 | |
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| 161 | propertyNode.appendChild(valueNode); |
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| 162 | updateNode.appendChild(propertyNode); |
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| 163 | |
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| 164 | // add in attributes |
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| 165 | for(var propName in feature.attributes) { |
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| 166 | propertyNode = this.createElementNS(this.wfsns, 'wfs:Property'); |
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| 167 | nameNode = this.createElementNS(this.wfsns, 'wfs:Name'); |
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| 168 | nameNode.appendChild(this.createTextNode(propName)); |
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| 169 | propertyNode.appendChild(nameNode); |
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| 170 | valueNode = this.createElementNS(this.wfsns, 'wfs:Value'); |
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| 171 | valueNode.appendChild(this.createTextNode(feature.attributes[propName])); |
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| 172 | propertyNode.appendChild(valueNode); |
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| 173 | updateNode.appendChild(propertyNode); |
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| 174 | } |
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| 175 | |
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| 176 | |
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| 177 | var filterNode = this.createElementNS(this.ogcns, 'ogc:Filter'); |
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| 178 | var filterIdNode = this.createElementNS(this.ogcns, 'ogc:FeatureId'); |
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| 179 | filterIdNode.setAttribute("fid", feature.fid); |
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| 180 | filterNode.appendChild(filterIdNode); |
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| 181 | updateNode.appendChild(filterNode); |
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| 182 | |
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| 183 | return updateNode; |
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| 184 | }, |
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| 185 | |
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| 186 | /** |
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| 187 | * Method: remove |
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| 188 | * Takes a feature, and generates a WFS-T Transaction "Delete" |
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| 189 | * |
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| 190 | * Parameters: |
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| 191 | * feature - {<OpenLayers.Feature.Vector>} |
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| 192 | */ |
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| 193 | remove: function(feature) { |
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| 194 | if (!feature.fid) { |
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| 195 | OpenLayers.Console.userError(OpenLayers.i18n("noFID")); |
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| 196 | return false; |
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| 197 | } |
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| 198 | var deleteNode = this.createElementNS(this.wfsns, 'wfs:Delete'); |
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| 199 | deleteNode.setAttribute("typeName", this.featurePrefix + ':' + this.featureName); |
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| 200 | deleteNode.setAttribute("xmlns:" + this.featurePrefix, this.featureNS); |
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| 201 | |
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| 202 | var filterNode = this.createElementNS(this.ogcns, 'ogc:Filter'); |
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| 203 | var filterIdNode = this.createElementNS(this.ogcns, 'ogc:FeatureId'); |
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| 204 | filterIdNode.setAttribute("fid", feature.fid); |
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| 205 | filterNode.appendChild(filterIdNode); |
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| 206 | deleteNode.appendChild(filterNode); |
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| 207 | |
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| 208 | return deleteNode; |
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| 209 | }, |
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| 210 | |
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| 211 | /** |
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| 212 | * APIMethod: destroy |
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| 213 | * Remove ciruclar ref to layer |
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| 214 | */ |
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| 215 | destroy: function() { |
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| 216 | this.layer = null; |
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| 217 | }, |
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| 218 | |
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| 219 | CLASS_NAME: "OpenLayers.Format.WFS" |
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| 220 | }); |
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