Multimedias -> campo virtual

modules/multimedia/multimedias.model.js

@@ -0,0 +1,60 @@
+'use strict';
+
+module.exports = function (sequelize, DataTypes) {
+    const Multimedias = sequelize.define('Multimedias', {
+        id: {
+            type: DataTypes.UUID,
+            defaultValue: DataTypes.UUIDV4,
+            primaryKey: true,
+        },
+        entityId: {
+            type: DataTypes.UUID,
+            allowNull: false,
+        },
+        entityName: {
+            type: DataTypes.STRING,
+            allowNull: false,
+        },
+        type: {
+            type: DataTypes.STRING,
+            allowNull: false,
+        },
+        entity: {
+            type: DataTypes.VIRTUAL,
+            get: function() {
+                const name = this.get('entityName');
+                const id = this.get('entityId'); 
+                let modelName = '';
+                switch (name) {
+                    case 'post':
+                        modelName = 'Post';
+                        break;
+                    case 'speaker':
+                        modelName = 'Speaker'
+                        break;
+
+                    case 'event':
+                        modelName = 'Event';
+                        break;
+
+                    default:
+                        break;
+                }
+
+                return sequelize.models[modelName].findOne(id);
+            }
+        }
+    }, {
+        indexes: [{
+            unique: false,
+            fields: ['entityId']
+        }],
+        tableName: 'multimedias',
+        freezeTableName: true,
+        timestamps: true,
+    });
+
+
+
+    return Multimedias;
+};

server.js

@@ -49,7 +49,7 @@ server.on('error', err => {
 });
 
 try {
-    models.sequelize.sync().then(() => {
+    models.sequelize.sync({ force: false }).then(() => {
         // Launch server.
         server.listen(currentState.port, (err) => {
             if (err) {