diff --git a/lib/models/index.js b/lib/models/index.js
index 6d0fd3c..e83956e 100644
--- a/lib/models/index.js
+++ b/lib/models/index.js
@@ -27,6 +27,12 @@ function stripNullByte(value) {
 }
 sequelize.stripNullByte = stripNullByte;
 
+function processData(data, _default, process) {
+    if (data === undefined) return data;
+    else return data === null ? _default : (process ? process(data) : data);
+}
+sequelize.processData = processData;
+
 var db = {};
 
 fs
diff --git a/lib/models/note.js b/lib/models/note.js
index 37d26ec..5c63dc1 100644
--- a/lib/models/note.js
+++ b/lib/models/note.js
@@ -53,18 +53,27 @@ module.exports = function (sequelize, DataTypes) {
         },
         title: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('title'), "");
+            },
             set: function (value) {
                 this.setDataValue('title', sequelize.stripNullByte(value));
             }
         },
         content: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('content'), "");
+            },
             set: function (value) {
                 this.setDataValue('content', sequelize.stripNullByte(value));
             }
         },
         authorship: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('authorship'), [], JSON.parse);
+            },
             set: function (value) {
                 this.setDataValue('authorship', JSON.stringify(value));
             }
diff --git a/lib/models/revision.js b/lib/models/revision.js
index adc651f..c7360fe 100644
--- a/lib/models/revision.js
+++ b/lib/models/revision.js
@@ -60,18 +60,27 @@ module.exports = function (sequelize, DataTypes) {
         },
         patch: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('patch'), "");
+            },
             set: function (value) {
                 this.setDataValue('patch', sequelize.stripNullByte(value));
             }
         },
         lastContent: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('lastContent'), "");
+            },
             set: function (value) {
                 this.setDataValue('lastContent', sequelize.stripNullByte(value));
             }
         },
         content: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('content'), "");
+            },
             set: function (value) {
                 this.setDataValue('content', sequelize.stripNullByte(value));
             }
@@ -81,6 +90,9 @@ module.exports = function (sequelize, DataTypes) {
         },
         authorship: {
             type: DataTypes.TEXT,
+            get: function () {
+                return sequelize.processData(this.getDataValue('authorship'), [], JSON.parse);
+            },
             set: function (value) {
                 this.setDataValue('authorship', value ? JSON.stringify(value) : value);
             }