feat(graphql): Add global IDs

Added global IDs for strength training items

Author: Simon Wears

package.json

@@ -26,6 +26,7 @@
 		"express": "^4.15.2",
 		"express-graphql": "^0.6.3",
 		"graphql": "^0.9.1",
+		"graphql-relay": "^0.5.1",
 		"node-polyglot": "^2.2.2",
 		"superagent": "^3.5.0",
 		"superagent-promise": "^1.1.0",

src/constants/global-id-types.js

@@ -0,0 +1,3 @@
+module.exports = {
+	strength_training_activities: 'STRENGTH'
+};

src/data-types/node-interface.js

@@ -0,0 +1,16 @@
+const fromGlobalId = require('graphql-relay').fromGlobalId;
+const nodeDefinitions = require('graphql-relay').nodeDefinitions;
+
+const { nodeInterface, nodeField } = nodeDefinitions(
+	(globalId, context) => {
+		const { type, id } = fromGlobalId(globalId);
+		return context.healthGraphLoader.load(id);
+	},
+	object => {
+		if (object.hasOwnProperty('exercises')) {
+			return 'StrengthTrainingItem';
+		}
+	}
+);
+
+module.exports = { nodeField, nodeInterface };

src/data-types/strength-training/item.js

@@ -7,6 +7,9 @@ const GraphQLObjectType = graphql.GraphQLObjectType;
 const StrengthTrainingExercise = require('./exercise');
 const CommentType = require('../comment');
 const i18n = require('../../helpers/i18n');
+const nodeInterface = require('../node-interface').nodeInterface;
+const toGlobalId = require('graphql-relay').toGlobalId;
+const globalIdTypes = require('../../constants/global-id-types');
 
 module.exports = new GraphQLObjectType({
 	name: 'StrengthTrainingItem',
@@ -27,6 +30,12 @@ module.exports = new GraphQLObjectType({
 			},
 			type: new GraphQLList(StrengthTrainingExercise)
 		},
+		id: {
+			resolve (parent) {
+				return toGlobalId(globalIdTypes.strength_training_activities, parent.uri);
+			},
+			type: new graphql.GraphQLNonNull(graphql.GraphQLID)
+		},
 		notes: {
 			description: i18n.t('GRAPHQL.STRENGTH_TRAINING.ITEM.NOTES'),
 			resolve (parent, args, context) {
@@ -59,5 +68,6 @@ module.exports = new GraphQLObjectType({
 			},
 			type: GraphQLInt
 		}
-	}
+	},
+	interfaces: [ nodeInterface ]
 });

src/data-types/user.js

@@ -6,6 +6,7 @@ const HEALTHGRAPH = require('../constants/healthgraph');
 const ProfileType = require('./profile');
 const StrengthTrainingActivitiesType = require('./strength-training/activities');
 const FitnessActivitiesType = require('./fitness-activities').FitnessActivities;
+const nodeField = require('./node-interface').nodeField;
 
 module.exports = new GraphQLObjectType({
 	name: 'User',
@@ -19,6 +20,7 @@ module.exports = new GraphQLObjectType({
 			},
 			type: FitnessActivitiesType
 		},
+		node: nodeField,
 		profile: {
 			description: i18n.t('GRAPHQL.USER.PROFILE'),
 			resolve (parent, args, context) {

yarn.lock

@@ -1431,6 +1431,10 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
+graphql-relay@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/graphql-relay/-/graphql-relay-0.5.1.tgz#3b3e44430a24c0f636e713f43f65bd542fe02ac9"
+
 graphql@^0.9.1:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/graphql/-/graphql-0.9.1.tgz#f4d154cbec054d4a5d3b1be95f23435c09aa86c8"