Make it easy to apply options to all paths in a schema

Hello,

why such test in mongoose 3.4.0 failed?

describe('mongoose schama validator', function() {
    it('should failed if field is empty', function() {
        var Schema = mongoose.Schema({
          foo: {
            type: String,
           match: /[a-z]+/
        }});

        Schema.path('foo').doValidate('', function(err) {
            assert.ok(err instanceof ValidatorError); //err there is null
        });
    });
});

But `/[a-z]+/.test(‘’) is false:

den$ node
> /[a-z]+/.test('')
false
> 

[btd]

For example i have field name. For user it is not required to set it, so it can be undefined. But if user set it, i want to check that it is not empty string. Currently as a workaround i add validator that simply check that value !== ''.

[vkarpov15]

I’m going to close this. We added the ability to configure the checkRequired function in 5.4.0: http://thecodebarbarian.com/whats-new-in-mongoose-54-global-schematype-configuration.html , https://mongoosejs.com/docs/api.html#schematype_SchemaType-checkRequired, and OP’s issue can be resolved with Schema#eachPath()