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Added support for Geo Queries: #97

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Merged
merged 1 commit into from
Mar 6, 2019
Merged

Added support for Geo Queries: #97

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51 changes: 51 additions & 0 deletions lib/src/network/parse_query.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -182,6 +182,57 @@ class QueryBuilder<T extends ParseObject> {
if (orderByScore) orderByDescending('score');
}

/// Returns an objects with key point values near the point given
void whereNear(String column, ParseGeoPoint point) {
var latitude = point.latitude;
var longitude = point.longitude;
queries.add(MapEntry(_SINGLE_QUERY,
'\"$column\":{\"\$nearSphere\":{\"__type\":\"GeoPoint\",\"latitude\":$latitude,\"longitude\":$longitude}}'));
}

/// Returns an object with key point values near the point given and within the maximum distance given.
void whereWithinMiles(
String column, ParseGeoPoint point, double maxDistance) {
var latitude = point.latitude;
var longitude = point.longitude;

queries.add(MapEntry(_SINGLE_QUERY,
'\"$column\":{\"\$nearSphere\":{\"__type\":\"GeoPoint\",\"latitude\":$latitude,\"longitude\":$longitude},\"\$maxDistanceInMiles\":$maxDistance}'));
}

/// Returns an object with key point values near the point given and within the maximum distance given.
void whereWithinKilometers(
String column, ParseGeoPoint point, double maxDistance) {
var latitude = point.latitude;
var longitude = point.longitude;

queries.add(MapEntry(_SINGLE_QUERY,
'\"$column\":{\"\$nearSphere\":{\"__type\":\"GeoPoint\",\"latitude\":$latitude,\"longitude\":$longitude},\"\$maxDistanceInKilometers\":$maxDistance}'));
}

/// Returns an object with key point values near the point given and within the maximum distance given.
void whereWithinRadians(
String column, ParseGeoPoint point, double maxDistance) {
var latitude = point.latitude;
var longitude = point.longitude;

queries.add(MapEntry(_SINGLE_QUERY,
'\"$column\":{\"\$nearSphere\":{\"__type\":\"GeoPoint\",\"latitude\":$latitude,\"longitude\":$longitude},\"\$maxDistanceInRadians\":$maxDistance}'));
}

/// Returns an object with key point values contained within a given rectangular geographic bounding box.
void whereWithinGeoBox(
String column, ParseGeoPoint southwest, ParseGeoPoint northeast) {
var latitudeS = southwest.latitude;
var longitudeS = southwest.longitude;

var latitudeN = northeast.latitude;
var longitudeN = northeast.longitude;

queries.add(MapEntry(_SINGLE_QUERY,
'\"$column\":{\"\$within\":{\"\$box\": [{\"__type\": \"GeoPoint\",\"latitude\":$latitudeS,\"longitude\":$longitudeS},{\"__type\": \"GeoPoint\",\"latitude\":$latitudeN,\"longitude\":$longitudeN}]}}'));
}

/// Finishes the query and calls the server
///
/// Make sure to call this after defining your queries
Expand Down