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[英]How do I add an array of records at the beginning of another array of records?
[英]How do i add new records in array and update records from an array in the data base Rails API
這是我收到的數據,如果 id 不在數組中,我想添加新記錄,如果數組中沒有 id,也更新記錄
我的模型:class Course < ApplicationRecord has_many: topics belongs_to:user end
class Topic < ApplicationRecord belongs_to:course belongs_to:user end
class User < ApplicationRecord has_many:courses has_many:Topics end
這是我通過 PostMan 從 Rails API 收到的數組 [ { "title": "Topic Name", "path_url": "https://resource-asws-path-url" }, { "id": 2311, "title ": "主題名稱", "path_url": "https://resource-asws-path-url" } ]
我是這樣做的:
if params[:topics].present?
attributes_list = [params[:topics]].to_s
attributes_list.each do |attributes|
if attributes.key?('id')
Topic.find(attributes['id']).update!(attributes)
else
Topic.create!(attributes)
end
end
I need to get attributes dynamically from the request from post under params[topics]
我會這樣做有一個條件:
if params[:topics].present?
JSON.parse(params[:topics]).each do |topic|
if topis.key?('id')
Topic.find(topic['id']).update!(topic)
else
Topic.create!(topic)
end
end
end
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