Spatial support for PostgreSQL using PostGIS

test/functional/query-builder/order-by/entity/Post.ts

@@ -1,6 +1,7 @@
 import {Entity} from "../../../../../src/decorator/entity/Entity";
 import {PrimaryGeneratedColumn} from "../../../../../src/decorator/columns/PrimaryGeneratedColumn";
 import {Column} from "../../../../../src/decorator/columns/Column";
+import {Index} from "../../../../../src";
 
 @Entity({
     orderBy: {
@@ -21,4 +22,8 @@ export class Post {
     @Column()
     num2: number = 1;
 
-}
+    @Column({ type: "geometry" })
+    @Index({ spatial: true })
+    geom: object;
+
+}

test/functional/spatial/postgres/spatial-postgres.ts

@@ -116,4 +116,60 @@ describe("spatial-postgres", () => {
         expect(foundPost!.geog).to.deep.equal(geom);
       })
     ));
+
+    it("should be able to order geometries by distance", () => Promise.all(connections.map(async connection => {
+
+        const geoJson1 = {
+            type: "Point",
+            coordinates: [
+                139.9341032213472,
+                36.80798008559315
+            ]
+        };
+
+        const geoJson2 = {
+            type: "Point",
+            coordinates: [
+                139.933053,
+                36.805711
+            ]
+        };
+
+        const origin = {
+            type: "Point",
+            coordinates: [
+                139.933227,
+                36.808005
+            ]
+        };
+
+        const post1 = new Post();
+        post1.geom = geoJson1;
+
+        const post2 = new Post();
+        post2.geom = geoJson2;
+        await connection.manager.save([post1, post2]);
+
+        const posts1 = await connection.manager
+            .createQueryBuilder(Post, "post")
+            .where("ST_Distance(post.geom, ST_GeomFromGeoJSON(:origin)) > 0")
+            .orderBy({
+                "ST_Distance(post.geom, ST_GeomFromGeoJSON(:origin))": {
+                    order: "ASC",
+                    nulls: "NULLS FIRST"
+                }
+            })
+            .setParameters({ origin: JSON.stringify(origin) })
+            .getMany();
+
+        const posts2 = await connection.manager
+            .createQueryBuilder(Post, "post")
+            .orderBy("ST_Distance(post.geom, ST_GeomFromGeoJSON(:origin))", "DESC")
+            .setParameters({ origin: JSON.stringify(origin) })
+            .getMany();
+
+        expect(posts1[0].id).to.be.equal(post1.id);
+        expect(posts2[0].id).to.be.equal(post2.id);
+    })));
+
 });