Active Record and file: How do i write Json file with my data?
The problem is that you assign a value to @eventJson
in a loop so the previous values are lost. You should use an array:
def write_json
events_json = []
Event.all.each do |event|
event_json = {
"id" => event.id,
"start" => event.start_at,
"end" => event.end_at,
"title" => event.name,
"body" => event.event_description,
"status" => event.status
}
events_json << event_json
end
File.open("public/event.json","w") do |f|
f.write(events_json.to_json)
end
end
In this case, you might want to use map
instead of each
-- it's much cleaner.
Given that you said the method is in the model, this is how it would look.
class Event < ActiveRecord::Base
...
def self.write_json
record_json = self.all.map{ |record| { self.name => record.attributes } }.to_json
File.open("#{Rails.root}/#{(self.name.underscore)}.json", "w") do |f|
f.write record_json
end
end
end