Initialization options

|option name|default|comment|
|-----------|-------|-------|
|crs|L.CRS.EPSG3857|spatial reference system for layer, should implement ICRS, for example Proj4Leaflet |
|showExisting|true|load existing features on create layer|
|geometryField|'Shape'|field for storing geometries, for non transaction services may be ommited|
|url|-|WFS url, for example http://geoserver.ics.perm.ru/geoserver/osm/ows
|typeNS|-|type namespace|
|typeName|-|type name|
|typeNSName|-|type namespace name|
|namespaceUri|-|namespace URI|
|opacity|1|layer's opacity|
|style|-|leaflet vector style. function or object|
|filter|-|any filter. see filter|
|maxFeatures|-|limit the amount of features returned|
|withCredentials|false|option to configure outgoing requests sending through XMLHttpRequest|

Basic WFS example - view

Events

Markers geometry writes as posNode, for all other layers geometry writes as posList

Filter

Realization of OGC Filter Encoding v1.1.0

Filter implementations return only inner content of filter element.

Some considerations for all filter constructors:
* "expression" - propertyName, literal, operator filter or function
* "propertyExpression" - if argument on this position is not Element and is not "expression" method it suspect to be a propertyName
* "literalExpression" - if argument on this position is not Element and is not "expression" it suspect to be a literal

|Name|Constructor|
|----|-----|
|ID|
|GmlObjectId|L.Filter.GmlObjectId(value id)|
|Comparisons|
|PropertyIsEqualTo|L.Filter.EQ(propertyExpression firstArgument, literalExpression secondArgument, bool matchCase)|
|PropertyIsNotEqualTo|L.Filter.NotEQ(propertyExpression firstArgument, literalExpression secondArgument, bool matchCase)|
|PropertyIsLessThan|L.Filter.LT(propertyExpression firstArgument, literalExpression secondArgument, bool matchCase)|
|PropertyIsGreaterThan|L.Filter.GT(propertyExpression firstArgument, literalExpression secondArgument, bool matchCase)|
|PropertyIsLessThanOrEqualTo|L.Filter.LEQ(propertyExpression firstArgument, literalExpression secondArgument, bool matchCase)|
|PropertyIsGreaterThanOrEqualTo|L.Filter.GEQ(propertyExpression firstArgument, literalExpression secondArgument, bool matchCase)|
|PropertyIsLike|L.Filter.Like(string propertyName,string likeExpression,object attributes)|
|PropertyIsNull|L.Filter.IsNull(string propertyName)|
|PropertyIsBetween|L.Filter.IsBetween(propertyExpression firstArgument, literalExpression lowerBoundary, literalExpression upperBoundary)|
|Operators|
|Add|L.Filter.Add(expression, expression)|
|Sub|L.Filter.Sub(expression, expression)|
|Mul|L.Filter.Mul(expression, expression)|
|Div|L.Filter.Div(expression, expression)|
|Logic|
|And|L.Filter.And(expression[, expression]*)|
|Or|L.Filter.Or(expression[, expression]*)|
|Not|L.Filter.Not(expression)|
|Spatial|
|BBox|L.Filter.BBox(string propertyName, latLngBounds bounds, ICRS crs)|
|Equals|L.Filter.Equals(string propertyName, Layer geometry, ICRS crs)|
|Disjoint|L.Filter.Disjoint(string propertyName, Layer geometry, ICRS crs)|
|Touches|L.Filter.Touches(string propertyName, Layer geometry, ICRS crs)|
|Within|L.Filter.Within(string propertyName, Layer geometry, ICRS crs)|
|Overlaps|L.Filter.Overlaps(string propertyName, Layer geometry, ICRS crs)|
|Crosses|L.Filter.Crosses(string propertyName, Layer geometry, ICRS crs)|
|Intersects|L.Filter.Intersects(string propertyName, Layer geometry, ICRS crs)|
|Contains|L.Filter.Contains(string propertyName, Layer geometry, ICRS crs)|
|Spatial distance buffer|
|DWithin|L.Filter.DWithin(string propertyName, Layer geometry, ICRS crs, value distance, string units)|
|Beyond|L.Filter.Beyond(string propertyName, Layer geometry, ICRS crs, value distance, string units)|
|Other|
|Function|L.Filter.Function(string functionName[, expression]*)|
|PropertyName|L.Filter.propertyName(string name)|
|Literal|L.Filter.literal(value)|

PropertyName and Literal is functions and returns Gml directly.

Examples

$3

In standard there are two filters - GmlObjectID and FeatureID, but latest is marked as deprecated and so is not implemented.

var wfst = new L.WFST({
url: 'http://myserver/geoserver/ows',
typeNS: 'myns',
typeName: 'POIPOINT',
style: {
color: 'blue',
weight: 2
}
}).addTo(map).once('load', function () {
map.fitBounds(wfst);
wfst.enableEdit();
});

map.on('editable:created', function (e) {
wfst.addLayer(e.layer);
});

//get value by key 'a'
var a = layer.getProperty('a');

//change values
layer.setProperties({
a: 'b',
b:'a'
});

//add new property
layer.setProperties({
c:'c'
});