Ruby on Rails为表创建新记录

Question

The code below create a new project in database record.It takes in parameters like job_location and project_title,contact_person.

 def new
    @project = Project.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @project }
    end
  end

Now I want to convert the job_location to latitude and longitude use other web-service(input address,out put a pair of numbers) and store into database. The convert part is done.

where should I add code to transfer this address to number and store in database?

I have tried add

@project.update_attributes(lat: 10 ,lng: 11)

At end of new function,but doesn't work.

I don't know how to retrieve data (just inputted by user)

don't know how to put converted data into database.

where and what code should add to achieve this?

Answer 1

I think you should use Migration to add lat and lng to your database.

If you can't change your database, maybe you just convert lat and lng to your struct and then save it into database.