add http error class and save file correctly

api/controllers/BooksController.js

@@ -1,3 +1,4 @@
+'use strict'
 /**
  * BooksController
  *
@@ -5,6 +6,8 @@
  * @help        :: See https://sailsjs.com/docs/concepts/actions
  */
 
+const HttpError = require('../errors/HttpError')
+
 module.exports = {
   publish: async function (req, res) {
     try {
@@ -18,9 +21,9 @@ module.exports = {
       const host = req.hostname
       let result
 
-      if (!host) throw new Error('Missing hostname')
-      if (!body) throw new Error('Missing body')
-      if (!body.title || !body.author || !body.version || !body.opds) throw new Error('Body is not formatted correctly')
+      if (!host) throw new HttpError(400, 'Missing hostname')
+      if (!body) throw new HttpError(400, 'Missing body')
+      if (!body.title || !body.author || !body.version || !req.file('opds')) throw new Error('Body is not formatted correctly')
       const data = {
         source: host,
         title: body.title,
@@ -31,22 +34,24 @@ module.exports = {
       const bookExists = await Book.findOne(data)
 
       if (bookExists) {
-        throw new Error('Version already exists')
+        throw new HttpError(400, 'Version already exists')
       } else {
-        result = await Book.create({
-          ...data,
-          publishDate: (new Date()).toISOString()
-        }).fetch()
+        result = await Book.create(data).fetch()
       }
 
-      req.file('opds').upload(sails.config.skipperConfig, function (err, uploaded) {
-        if (err) throw err
-        console.log(uploaded)
+      req.file('opds').upload(sails.config.skipperConfig, async function (err, uploaded) {
+        if (err) {
+          await result.destroy()
+          throw new HttpError(500, err.message)
+        }
+        result.storage = uploaded.fd
+        await result.save()
         return res.json({
           ...result
         })
       })
     } catch (e) {
+      if (e instanceof HttpError) return e.send(res)
       return res.status(400).json({
         error: e.message
       })
@@ -56,17 +61,15 @@ module.exports = {
   list: async function (req, res) {
     try {
       const body = req.allParams()
-      if (!body) { throw new Error('Missing parameters') }
+      if (!body) { throw new HttpError(400, 'Missing parameters') }
 
       const books = await Book.find(body)
 
-      if (!books.length) {
-        return res.status(404).json({
-          error: 'No books matching those parameters were found.'
-        })
-      }
+      if (!books.length) throw new HttpError(404, 'No books matching those parameters were found.')
+
       return res.json(books)
     } catch (e) {
+      if (e instanceof HttpError) return e.send(res)
       return res.status(500).json({
         error: e.message
       })

api/errors/HttpError.js

@@ -0,0 +1,16 @@
+class HttpError extends Error {
+  constructor (status, message, hint) {
+    super(message)
+    if (typeof status !== 'number') throw new Error('HttpError status must be an integer')
+    this.status = status
+    this.hint = hint || 'none'
+  }
+  send (res) {
+    return res.status(this.status).json({
+      error: this.message,
+      hint: this.hint
+    })
+  }
+}
+
+module.exports = HttpError

api/models/Book.js

@@ -18,11 +18,11 @@ module.exports = {
       autoIncrement: true
     },
     source: { type: 'string' },
+    storage: { type: 'string' },
     title: { type: 'string', required: true },
     author: { type: 'string' },
     version: { type: 'string' },
-    isbn: { type: 'string' },
-    publishDate: { type: 'string' }
+    isbn: { type: 'string' }
 
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