Transaction with promises, ending with array of promises

gistfile1.txt

return DB.sequelize.transaction(function (t) {

    return DB.Something.create({

        // data to create

    }).then(function(something) {

        return [
            DB.SomethingElse.create({
                aValidatedField: 'aValueThatWould fail validation.'
            }),
            someInstance.save({fields: ['merchantCredits']})
        ]

    });

}).catch(function(err) {
    // error handling
});

/* This will cause a Sequelize validation error to not bubble up to the outer catch, which subsequently doesn't cause a rollback. */

gistfile2.txt

return DB.sequelize.transaction(function (t) {

    return DB.Something.create({

        // data to create

    }).then(function(something) {

        return [
            DB.SomethingElse.create({
                aValidatedField: 'aValueThatWould fail validation.'
            }),
            someInstance.save({fields: ['merchantCredits']})
        ]

    }).spread(function(somethingElse, someInstance) {
        return somethingElse; //just return something thenable makes it work.
    });

}).catch(function(err) {
    // error handling
});

/* This however, will work.  */

If anyone is looking at this gist, the solution is this:

return DB.sequelize.transaction(function (t) {

return DB.Something.create({

    // data to create

}).then(function(something) {

    var promises = [
        DB.SomethingElse.create({
            aValidatedField: 'aValueThatWould fail validation.'
        }),
        someInstance.save({fields: ['merchantCredits']})
    ];
    return Promise.all(promises); 
}).catch(function(err) {
    // error handling
});