feat(fixtures): add support for neo4j

Closes #25

fixtures/index.js

@@ -0,0 +1,3 @@
+require( 'babel-register' );
+require( './load' );
+

fixtures/load.js

@@ -0,0 +1,183 @@
+import fs from 'fs';
+import path from 'path';
+import { Observable } from 'rx';
+import connect from '../src/db';
+
+const readFile = Observable.fromNodeCallback( fs.readFile );
+const readJson = ( ...args ) => readFile( path.join( __dirname, ...args ) )
+  .map( contents => JSON.parse( contents ) )
+  ;
+
+const MONGO_DB_NAME = 'dev';
+
+let neo, mongo;
+
+const log = function ( ...args ) {
+  return this.tap( () => console.log( ...args ) );
+};
+
+const conf = {
+  mongodb: {
+    uri: process.env.MONGO_URI || `mongodb://localhost:27017/${MONGO_DB_NAME}`,
+  },
+
+  neo4j: {
+    uri: process.env.NEO_URI || 'bolt://localhost',
+  },
+};
+
+const disconnect = () => {
+  mongo.close();
+  neo.close();
+  neo.disconnect();
+};
+
+console.log( 'Connecting to databases...' );
+connect( conf )
+  .tap( db => {
+    neo = db.neo;
+    mongo = db.mongo;
+  })
+
+  ::log( 'Emptying Mongo...' )
+  .flatMap( () => mongo.collection( 'users' ).removeMany({}) )
+  .flatMap( () => mongo.collection( 'worlds' ).removeMany({}) )
+  .flatMap( () => mongo.collection( 'characters' ).removeMany({}) )
+  .flatMap( () => mongo.collection( 'elements' ).removeMany({}) )
+  .flatMap( () => mongo.collection( 'genes' ).removeMany({}) )
+  .flatMap( () => mongo.collection( 'outlines' ).removeMany({}) )
+
+  ::log( 'Emptying Neo...' )
+  .flatMap( () => neo.run([
+    'MATCH (n)',
+    'OPTIONAL MATCH (n)-[rel]-()',
+    'DELETE n, rel',
+    'RETURN true', // hack to make sure the observable has something to which to subscribe
+  ].join( "\n" )))
+  .toArray()
+
+  /**
+   * Users
+   */
+  ::log( 'Loading Users to Mongo...' )
+  .flatMap( () => readJson( 'mongo', 'users.json' ) )
+  .flatMap( users => mongo.collection( 'users' ).insertMany( users ) )
+  .map( result => result.ops )
+
+  ::log( 'Loading Users to Neo...' )
+  .flatMap( users => neo.run([
+    'UNWIND {users} as user',
+    'CREATE (u:User { _id: user._id })',
+    'RETURN count(u) as users',
+  ].join( "\n" ), { users } ) )
+
+  /**
+   * Worlds
+   */
+  ::log( 'Loading Worlds to Mongo...' )
+  .flatMap( () => readJson( 'mongo', 'worlds.json' ) )
+  .flatMap( worlds => mongo.collection( 'worlds' ).insertMany( worlds ) )
+  .map( result => result.ops )
+
+  ::log( 'Loading Worlds to Neo...' )
+  .flatMap( worlds => neo.run([
+    'UNWIND {worlds} as world',
+    'CREATE (w:World { _id: world._id })',
+    'WITH w, world',
+
+    'UNWIND world.owners as uid',
+    'MATCH (user:User {_id: uid})',
+    'CREATE (user)-[:ROLE {type: "own"}]->(w)',
+    'WITH w, world',
+
+    'UNWIND world.writers as uid',
+    'MATCH (user:User {_id: uid})',
+    'CREATE (user)-[:ROLE {type: "rw"}]->(w)',
+    'WITH w, world',
+
+    'UNWIND world.readers as uid',
+    'MATCH (user:User {_id: uid})',
+    'CREATE (user)-[:ROLE {type: "ro"}]->(w)',
+    'WITH w, world',
+
+    'RETURN count(w) as worlds',
+  ].join( "\n" ), { worlds } ) )
+
+  /**
+   * Characters
+   */
+  ::log( 'Loading Characters to Mongo...' )
+  .flatMap( () => readJson( 'mongo', 'characters.json' ) )
+  .flatMap( characters => mongo.collection( 'characters' ).insertMany( characters ) )
+  .map( result => result.ops )
+
+  ::log( 'Loading Characters to Neo...' )
+  .flatMap( characters => neo.run([
+    'UNWIND {characters} as character',
+    'CREATE (c:Character { _id: character._id })',
+    'WITH character, c',
+    'MATCH (w:World {_id: character.world})',
+    'CREATE (w)<-[:OF]-(c)',
+    'RETURN count(c) as characters',
+  ].join( "\n" ), { characters } ) )
+
+  /**
+   * Elements
+   */
+  ::log( 'Loading Elements to Mongo...' )
+  .flatMap( () => readJson( 'mongo', 'elements.json' ) )
+  .flatMap( elements => mongo.collection( 'elements' ).insertMany( elements ) )
+  .map( result => result.ops )
+
+  ::log( 'Loading Elements to Neo...' )
+  .flatMap( elements => neo.run([
+    'UNWIND {elements} as element',
+    'CREATE (e:Element { _id: element._id })',
+    'WITH element, e',
+    'MATCH (w:World {_id: element.world_id})',
+    'CREATE (w)<-[:OF]-(e)',
+    'RETURN count(e) as elements',
+  ].join( "\n" ), { elements } ) )
+
+  /**
+   * Outlines
+   */
+  ::log( 'Loading Outlines to Mongo...' )
+  .flatMap( () => readJson( 'mongo', 'outlines.json' ) )
+  .flatMap( outlines => mongo.collection( 'outlines' ).insertMany( outlines ) )
+  .map( result => result.ops )
+
+  ::log( 'Loading Outlines to Neo...' )
+  .flatMap( outlines => neo.run([
+    'UNWIND {outlines} as outline',
+    'CREATE (o:Outline { _id: outline._id })',
+    'WITH outline, o',
+    'MATCH (w:World {_id: outline.world_id})',
+    'CREATE (w)<-[:OF]-(o)',
+    'RETURN count(o) as outlines',
+  ].join( "\n" ), { outlines } ) )
+
+  /**
+   * Genes
+   */
+  ::log( 'Loading Genes to Mongo...' )
+  .flatMap( () => readJson( 'mongo', 'genes.json' ) )
+  .flatMap( genes => mongo.collection( 'genes' ).insertMany( genes ) )
+  .map( result => result.ops )
+
+  ::log( 'Loading Genes to Neo...' )
+  .flatMap( genes => neo.run([
+    'UNWIND {genes} as gene',
+    'CREATE (g:Gene { _id: gene._id })',
+    'RETURN count(g) as genes',
+  ].join( "\n" ), { genes } ) )
+
+  .toArray()
+  .subscribe( () => {
+    console.log( 'Success!' );
+  }, err => {
+    console.log( 'Something went wrong:', err );
+    disconnect();
+  }, disconnect )
+  ;
+

fixtures/outlines.json → fixtures/mongo/outlines.json

@@ -1,6 +1,7 @@
 [
   {
     "_id": "D0N1iLYimG",
+    "world_id": "BdvmHwZsvA",
     "title": "Hero's Journey",
 
     "readers": [

package.json

@@ -8,13 +8,7 @@
     "dev": "nodemon index.js",
     "test": "tape -r babel-polyfill -r babel-register src/**/*spec.js | faucet",
     "test:ci": "tape -r babel-polyfill -r babel-register src/**/*spec.js",
-    "data:worlds": "mongoimport --db dev --drop --jsonArray --type json --file fixtures/worlds.json --collection worlds",
-    "data:outlines": "mongoimport --db dev --drop --jsonArray --type json --file fixtures/outlines.json --collection outlines",
-    "data:characters": "mongoimport --db dev --drop --jsonArray --type json --file fixtures/characters.json --collection characters",
-    "data:genes": "mongoimport --db dev --drop --jsonArray --type json --file fixtures/genes.json --collection genes",
-    "data:users": "mongoimport --db dev --drop --jsonArray --type json --file fixtures/users.json --collection users",
-    "data:elements": "mongoimport --db dev --drop --jsonArray --type json --file fixtures/elements.json --collection elements",
-    "data": "npm run data:worlds && npm run data:characters && npm run data:users && npm run data:outlines && npm run data:elements && npm run data:genes"
+    "data": "node fixtures/index.js"
   },
   "repository": {
     "type": "git",