更新sequelize的初始化设置

@@ -9,6 +9,10 @@ global.sequelize = global.sequelize = function () {
 
     const config = require('./config'), config_sequelize = config.sequelize;
 
+    // 处理浮点数及大整型数据返回时不转换成String
+    Sequelize.postgres.DECIMAL.parse = function (value) { return parseFloat(value); };
+    Sequelize.postgres.BIGINT.parse = function (value) { return parseInt(value); };
+
     //custom method defined here
     config_sequelize.options.define = {
         classMethods: {
@@ -24,7 +28,7 @@ global.sequelize = global.sequelize = function () {
 
                 //根据主键查找是否存在
                 let primaryKey = Entity.primaryKeyAttribute;
-                return Entity.findById(entityRequest[primaryKey])
+                return Entity.findByPk(entityRequest[primaryKey], options)
                     .then(function (entity) {
                         if (entity) { //to update
                             return entity.update(entityRequest, options);
@@ -52,7 +56,7 @@ global.sequelize = global.sequelize = function () {
                 }
                 //根据主键查找是否存在
                 let primaryKey = Entity.primaryKeyAttribute;
-                return Entity.findById(entityRequest[primaryKey])
+                return Entity.findByPk(entityRequest[primaryKey], options)
                     .then(function (entity) {
                         if (entity) { //to update
                             return entity.update(entityRequest, options);
@@ -83,12 +87,6 @@ global.sequelize = global.sequelize = function () {
         logger.info('db init finished!');
     }
 
-    // 兼容4.0模式，添加属性
-    sequelize.Op = Sequelize.Op;
-    sequelize.Transaction = Sequelize.Transaction;
-    sequelize.Model = Sequelize.Model;
-    sequelize.Utils = Sequelize.Utils;
-
     return sequelize;
 }();