Function completePolygon

query/outputnode_graphql.go:1267–1327

completePolygon converts the Dgraph result to GraphQL Polygon type. Dgraph output: coordinate: [[[22.22,11.11],[16.16,15.15],[21.21,20.2]],[[22.28,11.18],[16.18,15.18],[21.28,20.28]]] Graphql output: { coordinates: [ { points: [{ latitude: 11.11, longitude: 22.22}, { latitude: 15.15, longitude: 16.1

(field gqlSchema.Field, polygon []interface{}, buf *bytes.Buffer)

// { latitude: 11.18, longitude: 22.28}, { latitude: 15.18, longitude: 16.18} ,
// { latitude: 20.28, longitude: 21.28}]} ] }
func completePolygon(field gqlSchema.Field, polygon []interface{}, buf *bytes.Buffer) {
	comma1 := ""

	x.Check2(buf.WriteRune('{'))
	for _, f1 := range field.SelectionSet() {
		if f1.Skip() || !f1.Include() {
			continue
		}

		x.Check2(buf.WriteString(comma1))
		f1.CompleteAlias(buf)

		switch f1.Name() {
		case gqlSchema.Coordinates:
			x.Check2(buf.WriteRune('['))
			comma2 := ""

			for _, ring := range polygon {
				x.Check2(buf.WriteString(comma2))
				x.Check2(buf.WriteRune('{'))
				comma3 := ""

				for _, f2 := range f1.SelectionSet() {
					if f2.Skip() || !f2.Include() {
						continue
					}

					x.Check2(buf.WriteString(comma3))
					f2.CompleteAlias(buf)

					switch f2.Name() {
					case gqlSchema.Points:
						x.Check2(buf.WriteRune('['))
						comma4 := ""

						r, _ := ring.([]interface{})
						for _, point := range r {
							x.Check2(buf.WriteString(comma4))

							p, _ := point.([]interface{})
							completePoint(f2, p, buf)

							comma4 = ","
						}
						x.Check2(buf.WriteRune(']'))
					case gqlSchema.Typename:
						x.Check2(buf.WriteString(`"PointList"`))
					}
					comma3 = ","
				}
				x.Check2(buf.WriteRune('}'))
				comma2 = ","
			}
			x.Check2(buf.WriteRune(']'))
		case gqlSchema.Typename:
			x.Check2(buf.WriteString(`"Polygon"`))
		}
		comma1 = ","