javascript - Sequelize - Bulk create from array -

i have array of items , need create them db.

i need check each insert if success insert new array (results) item + success = true json.

if not succeed create - insert same array before (results) item + success = false.

here's code:

create_cards: function (filter_id, is_filter, cards) {     var result = [];     var curr_card = null;     (var card in cards) {         curr_card = this.create( {             filter_id: filter_id,             template: card.template,             state: card.state,             question_id: card.question_id || -1,             answers: card.answers || -1,             description: card.description || -1,             correct_answer: card.correct_answer || -1         }).then(function(card) {             result.push({card: json.stringify(card.datavalues), success: true})         },function(err) {             result.push({card: card.datavalues, success: false})         });     }     return results; } 

now, 2 questions:

1. there 'return result' after loop over, empty array.. how should bulk create , after each create, make sure if creation succeed?

2. how should card in error function? 'err' variable reject function.

thanks!

create_cards: function(filter_id, is_filter, cards) {    var result = [];      var promises = cards.map(function(card) {      return this.create({          filter_id: filter_id,          template: card.template,          state: card.state,          question_id: card.question_id || -1,          answers: card.answers || -1,          description: card.description || -1,          correct_answer: card.correct_answer || -1        })        .then(function() {          result.push({            card: card,            success: true          });        })        .catch(function(err) {          result.push({            card: card,            success: false          });          return promise.resolve();        });    });      return promise.all(promises)      .then(function() {        return promise.resolve(result);      });  }