我有一个代码,可以通过geoserver wfst服务访问postgres数据库,我想为我的应用程序创建一个日志窗口,在其中可以看到已删除/修改/添加的功能属性/ ID?在postgres中也有任何SQL查询方法,在那里我可以看到我最后删除的记录
js代码:
var formatGML = new ol.format.GML({
featureNS: 'NS',
featureType: 'wfs_geom',
srsName: 'EPSG:3857'
});
var xs = new XMLSerializer();
var sourceWFS = new ol.source.Vector({
loader: function (extent) {
$.ajax('http://localhost:8080/geoserver/harry/ows?', {
type: 'GET',
data: {
service: 'WFS',
version: '1.1.0',
request: 'GetFeature',
typename: 'wfs_geom',
srsname: 'EPSG:3857',
bbox: extent.join(',') + ',EPSG:3857'
}
}).done(function (response) {
sourceWFS.addFeatures(formatWFS.readFeatures(response));
});
},
strategy: ol.loadingstrategy.tile(ol.tilegrid.createXYZ()),
strategy: ol.loadingstrategy.bbox,
projection: 'EPSG:3857'
});
var layerWFS = new ol.layer.Vector({
source: sourceWFS
});
var interaction;
var interactionSelectPointerMove = new ol.interaction.Select({
condition: ol.events.condition.pointerMove
});
var interactionSelect = new ol.interaction.Select({
style: new ol.style.Style({
stroke: new ol.style.Stroke({
color: '#FF2828'
})
})
});
var interactionSnap = new ol.interaction.Snap({
source: layerWFS.getSource()
});
var map = new ol.Map({
target: 'map',
controls: [],
interactions: [
interactionSelectPointerMove,
new ol.interaction.MouseWheelZoom(),
new ol.interaction.DragPan()
],
layers: [
new ol.layer.Tile({
source: new ol.source.OSM({
url: 'https://{1-4}.aerial.maps.cit.api.here.com' +
'/maptile//2.1/maptile/newest/hybrid.day/{z}/{x}/{y}/256/png' +
'?app_id=TFzZOKyEry5cavZxVoe7&app_code=PLrOWVHdpxyVR_Dy0RLbnw',
opaque: false,
attributions: []
})
}),
layerWFS
],
view: new ol.View({
center: ol.proj.fromLonLat([-1.7, 53.2]),
zoom: 6
})
});
//wfs-t
var dirty = {};
var transactWFS = function (mode, f) {
var node;
switch (mode) {
case 'insert':
node = formatWFS.writeTransaction([f], null, null, formatGML);
break;
case 'update':
node = formatWFS.writeTransaction(null, [f], null, formatGML);
break;
case 'delete':
node = formatWFS.writeTransaction(null, null, [f], formatGML);
break;
}
var payload = xs.serializeToString(node);
$.ajax('http://localhost:8080/geoserver/workspace/ows', {
type: 'POST',
dataType: 'xml',
processData: false,
contentType: 'text/xml',
data: payload
}).done(function() {
sourceWFS.clear();
});
};
$('button').click(function () {
$(this).siblings().removeClass('btn-active');
$(this).addClass('btn-active');
map.removeInteraction(interaction);
interactionSelect.getFeatures().clear();
map.removeInteraction(interactionSelect);
switch ($(this).attr('id')) {
case 'btnEdit':
map.addInteraction(interactionSelect);
interaction = new ol.interaction.Modify({
features: interactionSelect.getFeatures()
});
map.addInteraction(interaction);
map.addInteraction(interactionSnap);
dirty = {};
interactionSelect.getFeatures().on('add', function (e) {
e.element.on('change', function (e) {
dirty[e.target.getId()] = true;
});
});
interactionSelect.getFeatures().on('remove', function (e) {
var f = e.element;
if (dirty[f.getId()]) {
delete dirty[f.getId()];
var featureProperties = f.getProperties();
delete featureProperties.boundedBy;
var clone = new ol.Feature(featureProperties);
clone.setId(f.getId());
transactWFS('update', clone);
}
});
break;
case 'btnPoint':
interaction = new ol.interaction.Draw({
type: 'Point',
source: layerWFS.getSource()
});
map.addInteraction(interaction);
interaction.on('drawend', function (e) {
transactWFS('insert', e.feature);
});
break;
case 'btnLine':
interaction = new ol.interaction.Draw({
type: 'LineString',
source: layerWFS.getSource()
});
map.addInteraction(interaction);
interaction.on('drawend', function (e) {
transactWFS('insert', e.feature);
});
break;
case 'btnArea':
interaction = new ol.interaction.Draw({
type: 'Polygon',
source: layerWFS.getSource()
});
interaction.on('drawend', function (e) {
transactWFS('insert', e.feature);
});
map.addInteraction(interaction);
break;
case 'btnDelete':
interaction = new ol.interaction.Select();
interaction.getFeatures().on('add', function (e) {
transactWFS('delete', e.target.item(0));
interactionSelectPointerMove.getFeatures().clear();
interaction.getFeatures().clear();
});
map.addInteraction(interaction);
break;
default:
break;
}
});