Properties with mysql custom "columnName" don't get autoupdated (#273)

* #250 fix column escaping for autoupdate

* Fix lint error

lib/migration.js

@@ -176,7 +176,7 @@ function mixinMigration(MySQL, mysql) {
         });
       }
       if (found) {
-        actualize(colName, found);
+        actualize(propName, found);
       } else {
         sql.push('ADD COLUMN ' + self.client.escapeId(colName) + ' ' +
           self.buildColumnDefinition(model, propName));
@@ -186,7 +186,7 @@ function mixinMigration(MySQL, mysql) {
     function actualize(propName, oldSettings) {
       var newSettings = m.properties[propName];
       if (newSettings && changed(newSettings, oldSettings)) {
-        var pName = self.client.escapeId(propName);
+        var pName = self.columnEscaped(model, propName);
         sql.push('CHANGE COLUMN ' + pName + ' ' + pName + ' ' +
           self.buildColumnDefinition(model, propName));
       }

test/mysql.autoupdate.test.js

@@ -529,6 +529,49 @@ describe('MySQL connector', function() {
     verifyMysqlColumnNameAutoupdate(done);
   });
 
+  it('should update the nullable property of "first_name" to false', function(done) {
+    // update the model "required" property
+    var schema = {
+      name: 'ColRenameTest',
+      options: {
+        idInjection: false,
+        mysql: {
+          schema: 'myapp_test',
+          table: 'col_rename_test',
+        },
+      },
+      properties: {
+        firstName: {
+          type: 'String',
+          required: true,
+          length: 40,
+          mysql: {
+            columnName: 'first_name',
+            dataType: 'varchar',
+            dataLength: 40,
+          },
+        },
+        lastName: {
+          type: 'String',
+          required: false,
+          length: 40,
+        },
+      },
+    };
+
+    ds.createModel(schema.name, schema.properties, schema.options);
+
+    // nullable should be updated to false
+    ds.autoupdate('ColRenameTest', function(err) {
+      assert.ifError(err);
+      ds.discoverModelProperties('col_rename_test', function(err, props) {
+        assert.equal(props[0].nullable, 'N');
+        assert.equal(props[0].columnName, 'first_name');
+        done();
+      });
+    });
+  });
+
   function verifyMysqlColumnNameAutoupdate(done) {
     ds.autoupdate('ColRenameTest', function(err) {
       ds.discoverModelProperties('col_rename_test', function(err, props) {