fix(model): unable to override rejectOnEmpty (#9632)

lib/model.js

@@ -1672,13 +1672,12 @@ class Model {
     tableNames[this.getTableName(options)] = true;
     options = Utils.cloneDeep(options);
 
-    _.defaults(options, {
-      hooks: true,
-      rejectOnEmpty: this.options.rejectOnEmpty
-    });
+    _.defaults(options, { hooks: true });
 
-    // set rejectOnEmpty option from model config
-    options.rejectOnEmpty = options.rejectOnEmpty || this.options.rejectOnEmpty;
+    // set rejectOnEmpty option, defaults to model options
+    options.rejectOnEmpty = options.hasOwnProperty('rejectOnEmpty')
+      ? options.rejectOnEmpty
+      : this.options.rejectOnEmpty;
 
     return Promise.try(() => {
       this._injectScope(options);
@@ -1904,8 +1903,7 @@ class Model {
 
     // Bypass a possible overloaded findAll.
     return this.findAll(_.defaults(options, {
-      plain: true,
-      rejectOnEmpty: false
+      plain: true
     }));
   }
 

test/integration/model/find.test.js

@@ -976,6 +976,24 @@ describe(Support.getTestDialectTeaser('Model'), () => {
           });
       });
 
+      it('override model options', () => {
+        const Model = current.define('Test', {
+          username: Sequelize.STRING(100)
+        }, {
+          rejectOnEmpty: true
+        });
+
+        return Model.sync({ force: true })
+          .then(() => {
+            return expect(Model.findOne({
+              rejectOnEmpty: false,
+              where: {
+                username: 'some-username-that-is-not-used-anywhere'
+              }
+            })).to.eventually.be.deep.equal(null);
+          });
+      });
+
       it('resolve null when disabled', () => {
         const Model = current.define('Test', {
           username: Sequelize.STRING(100)

test/integration/model/findAll.test.js

@@ -1658,7 +1658,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
     });
 
     it('throws custom error with initialized', () => {
-
       const Model = current.define('Test', {
         username: Sequelize.STRING(100)
       }, {
@@ -1676,7 +1675,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
     });
 
     it('throws custom error with instance', () => {
-
       const Model = current.define('Test', {
         username: Sequelize.STRING(100)
       }, {
@@ -1692,7 +1690,5 @@ describe(Support.getTestDialectTeaser('Model'), () => {
           })).to.eventually.be.rejectedWith(Sequelize.ConnectionError);
         });
     });
-
   });
-
 });