About GeoServer-js

GeoServer-js is a toolset designed to make accessing and querying a GeoServer instance much more user friendly.

For the time being GeoServer-js is dependant on Tile5

Usage

• GEOSERVER.cql.parseCQL(query, params)

  • Takes the query json and params and returns an array of cql queries
    • params : { maxPoints : 50
      }

• GEOSERVER.ogc.parseOGC(query)

  • Takes the query json and returns an array with a single value which is the ogc filter

• GEOSERVER.buildRequest(requestParams, params, json, callback)

  • Returns an array of objects, each of which is the querystring portion of the geoserver request.

    • requestParams : { service: 'WFS', version: '1.1.0', request: 'GetFeature', maxFeatures: 200, outputFormat: 'json', typeName : null, propertyName : } typeName must be specified

    • params : { queryType: "ogc", maxPoints: undefined }

    queryType can either be ogc, which returns an xml-type filter or cql which returns a sql type filter - If the type is ogc an array of one will be returned, cql can be any length

    • json - The json to be transformed into a cql query
    • callback - The function to handle the returned array

Additional

Chained query example

{
    operator: 'AND',
    conditions: [{
        "type": "like",
        "args": {
            "property": "Name",
            "value": "Cottage"
        }
    }, {
        type: 'compound',
        args: {
            operator: 'OR',
            conditions: [{
                "type": "like",
                "args": {
                    "property": "Name",
                    "value": "Hotel"
                }
            }, {
                "type": "spatial.bbox",
                "args": {
                    "property": "the_geom",
                    "min": "-28.96 138.08",
                    "max": "-10.27 153.59"
                }
            },  {
                type: 'compound',
                args: {
                    operator: 'OR',
                    conditions: [{
                        "type": "like",
                        "args": {
                            "property": "Name",
                            "value": "Hotel"
                        }
                    }, {
                        "type": "spatial.bbox",
                        "args": {
                            "property": "the_geom",
                            "min": "-28.96 138.08",
                            "max": "-10.27 153.59"
                        }
                    }]
                }
			}]
        }
    }

This returns the following : (Name LIKE '%Cottage%' AND (Name LIKE '%Hotel%' OR BBOX(the_geom, -28.96, 138.08, -10.27, 153.59) OR (Name LIKE '%Hotel%' OR BBOX(the_geom, -28.96, 138.08, -10.27, 153.59))))