model and view

Author: William Wang

.DS_Store

@@ -0,0 +1,84 @@
+var db = require('../libs/db');
+var GeneralErrors = require('../errors/GeneralErrors');
+
+var Article = function(options) {
+  this.id = options.id;
+  this.title = options.title;
+  this.content = options.content;
+  this.createdAt = options.createdAt;
+};
+
+Article.getAll = function(cb) {
+  db.select()
+    .from('article')
+    .map(function(row) {
+      return new Article(row);
+    })
+    .then(function(articleList) {
+      cb(null, articleList);
+    })
+    .catch(function(err) {
+      cb(new GeneralErrors.Database());
+    });
+}
+
+Article.get = function(articleId, cb) {
+  db.select()
+    .from('article')
+    .where({
+      id : articleId
+    })
+    .map(function(row) {
+      return new Article(row);
+    })
+    .then(function(articleList) {
+      if(articleList.length) {
+        cb(null, articleList[0]);
+      } else {
+        cb(null, new GeneralErrors.NotFound());
+      }
+
+    })
+    .catch(function(err) {
+      console.log(err);
+      cb(new GeneralErrors.Database());
+    });
+}
+
+//instance fnuction
+Article.prototype.save = function (cb) {
+  if(this.id) {
+    db('article')
+      .update({
+        title : this.title,
+        content : this.content
+      })
+      .where({
+        id : this.id
+      })
+      .then(function() {
+        cb(null);
+      })
+      .catch(function(err) {
+        console.log(err);
+        cb(null, new GeneralErrors.Database());
+      })
+  } else {
+    db('article')
+      .insert({
+        title : this.title,
+        content : this.content
+      })
+      .then(function(result) {
+        this.id = result[0];
+        cb(null, this);
+      }.bind(this))
+      .catch(function(err) {
+        console.log(err);
+        cb(null, new GeneralErrors.Database());
+      });
+  }
+};
+
+
+module.exports = Article;