feat(seeding): add ability to seed data

This adds functionality for seeding data. We avoid using sequelize direction by relying upon

bluebird for mapping. Included are also tests.

Author: jimthedev

.travis.yml

@@ -0,0 +1,17 @@
+language: node_js
+cache:
+  directories:
+    - node_modules
+notifications:
+  email: false
+node_js:
+  - '7'
+  - '6'
+  - '4'
+before_script:
+  - npm prune
+after_success:
+  - npm run semantic-release
+branches:
+  except:
+    - /^v\d+\.\d+\.\d+$/

package.json

@@ -1,7 +1,7 @@
 {
   "name": "seedquelize",
   "description": "A seeder for Sequelize",
-  "version": "1.0.0",
+  "version": "0.0.0-development",
   "author": "Jim Cummins <[email protected]>",
   "bugs": "https://github.com/jimthedev/seedquelize/issues",
   "config": {
@@ -57,7 +57,8 @@
     "secure": "nsp check",
     "size": "t=\"$(npm pack .)\"; wc -c \"${t}\"; tar tvf \"${t}\"; rm \"${t}\";",
     "test": "npm run unit",
-    "unit": "mocha src/*-spec.js"
+    "unit": "mocha src/*-spec.js",
+    "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   },
   "devDependencies": {
     "ban-sensitive-files": "1.9.0",
@@ -68,6 +69,10 @@
     "mocha": "3.2.0",
     "nsp": "2.6.2",
     "pre-git": "3.12.0",
+    "semantic-release": "6.3.2",
     "standard": "8.6.0"
+  },
+  "dependencies": {
+    "bluebird": "3.4.7"
   }
 }

src/index.js

@@ -1 +1,11 @@
 'use strict'
+
+const Promise = require('bluebird')
+
+module.exports = function seed (seeds) {
+  return Promise.each(seeds, (seed) => {
+    return Promise.each(seed.data, (item) => {
+      return seed.model.create(item)
+    })
+  })
+}

src/seedquelize-spec.js

@@ -1,7 +1,138 @@
 'use strict'
 
+const seed = require('./index.js')
+
 /* global describe, it */
-describe('empty test suite', () => {
-  it('write this test', () => {
+describe('should create items', () => {
+  it('when given one model and one data item', (done) => {
+    // Mocking out a sequelize model's create function
+    // Users should use an actual sequelize model
+    const Artist = {
+      create: function () {
+        done()
+      }
+    }
+
+    // This shows the shape of the structure we are expecting
+    const artists = {
+      data: [
+        {
+          name: 'Andrea Bocelli',
+          genre: 'Opera'
+        }
+      ],
+      model: Artist
+    }
+
+    // This shows how to call seedquelize
+    seed([artists])
+  })
+  it('when given one model and multiple data items', function (done) {
+    let currentDoneCount = 0
+    let finalDoneCount = 2
+
+    // Mocking out a sequelize model's create function
+    // Users should use an actual sequelize model
+    const Artist = {
+      create: function () {
+        checkIfDone()
+      }
+    }
+
+    // This shows the shape of the structure we are expecting
+    const artists = {
+      data: [
+        {
+          name: 'Andrea Bocelli',
+          genre: 'Opera'
+        },
+        {
+          name: 'Britney Spears',
+          genre: 'Pop'
+        },
+        {
+          name: 'Lee Morgan',
+          genre: 'Jazz'
+        }
+      ],
+      model: Artist
+    }
+
+    // Only used in test to see if we've fired create enough times
+    const checkIfDone = () => {
+      if (currentDoneCount === finalDoneCount) {
+        done()
+      } else {
+        currentDoneCount++
+      }
+    }
+
+    // This shows how to call seedquelize
+    seed([artists])
+  })
+  it('when given multiple models and multiple data items', function (done) {
+    let currentDoneCount = 0
+    let finalDoneCount = 4
+
+    // Mocking out a sequelize model's create function
+    // Users should use an actual sequelize model
+    const Artist = {
+      create: function () {
+        checkIfDone()
+      }
+    }
+    const User = {
+      create: function () {
+        checkIfDone()
+      }
+    }
+
+    // This shows the shape of the structure we are expecting
+    const artists = {
+      data: [
+        {
+          name: 'Andrea Bocelli',
+          genre: 'Opera'
+        },
+        {
+          name: 'Britney Spears',
+          genre: 'Pop'
+        },
+        {
+          name: 'Lee Morgan',
+          genre: 'Jazz'
+        }
+      ],
+      model: Artist
+    }
+
+    const users = {
+      data: [
+        {
+          username: 'jimthedev',
+          twitter: '@jimthedev'
+        },
+        {
+          username: 'jnessview',
+          twitter: 'JNessView'
+        }
+      ],
+      model: User
+    }
+
+    // Only used in test to see if we've fired create enough times
+    const checkIfDone = () => {
+      if (currentDoneCount === finalDoneCount) {
+        done()
+      } else {
+        currentDoneCount++
+      }
+    }
+
+    // This shows how to call seedquelize
+    seed([
+      artists,
+      users
+    ])
   })
 })