feat(model): expose model to global hooks (#6371)

* feat(model): expose model to global hooks

* tweak(model): remove redundant reference

lib/model.js

@@ -2083,6 +2083,9 @@ Model.prototype.bulkCreate = function(records, options) {
 
   options.fields = options.fields || Object.keys(this.tableAttributes);
 
+  // Expose model to global hooks
+  options.model = this;
+
   var dialect = this.sequelize.options.dialect;
   if (options.ignoreDuplicates && ['postgres', 'mssql'].indexOf(dialect) !== -1) {
     return Promise.reject(new Error(dialect + ' does not support the \'ignoreDuplicates\' option.'));
@@ -2185,8 +2188,6 @@ Model.prototype.bulkCreate = function(records, options) {
         }
       }
 
-      // Insert all records at once
-      options.model = self;
       return self.QueryInterface.bulkInsert(self.getTableName(options), records, options, attributes).then(function (results) {
         if (Array.isArray(results)) {
           results.forEach(function (result, i) {
@@ -2342,6 +2343,9 @@ Model.prototype.restore = function(options) {
 
   options.type = QueryTypes.RAW;
 
+  // Expose model to global hooks
+  options.model = this;
+
   var self = this
     , instances;
 
@@ -2434,6 +2438,9 @@ Model.prototype.update = function(values, options) {
 
   options.type = QueryTypes.BULKUPDATE;
 
+  // Expose model to global hooks
+  options.model = this;
+
   this.$injectScope(options);
 
   // Clone values so it doesn't get modified for caller scope