[英]Sequelize - Bulk create from array
我有一個項目數組,需要創建它們到DB。
我需要檢查每個插入是否成功,因此插入新數組(結果)項目+ success = true作為json。
如果沒有成功創建 - 在(結果)項目+ success = false之前插入到同一個數組。
這是代碼:
create_cards: function (filter_id, is_filter, cards) {
var result = [];
var curr_card = null;
for (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;
}
現在,2個問題:
循環結束后有'返回結果',但是我得到空數組。我應該如何在每次創建后批量創建AND,以確保創建成功?
我該如何在錯誤功能中獲得卡? 我只將'err'作為拒絕函數的變量。
謝謝!
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); }); }
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