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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