调用Rails Action通过Ajax获取数据

Question

I have been trying to call my model from Javascript and the half is already done, but I want to pass the results from one method in my model to another method in my model and the receive the output in my view.

My model looks like:

class Calculator

    def initialize( consumption, production )
        @consumption = consumption
        @production = production
    end

    def calc_raw

        #Calculations
        #output -> hash with outputs


    end

    def calc_test
        raw = calc_raw
        # calculation with output from calc_raw
        #data -> return to AJAX.
        return data
    end

end

My controller looks like: energycalcsb_controller.rb

class Api::V2::EnergycalcsbController < ApplicationController
    skip_before_filter :verify_authenticity_token
    def index

    end

    def create
        input1 = params[:data][0].to_i
        input2 = params[:data][1].to_i
        @calc = Calculator.new(input1,input2)
        energy_calc_results = @calc.calc_raw


        render status: 200, json: {
            message: "Succesful data calculation",
            data_output: energy_calc_results
            }.to_json


    end   


end

In my view:

<script >

// Converting entries by user to integer
    var myInteger1; 
    myInteger1 = parseInt(a); //Jahreshausverbrauch (kWh)
    var myInteger2; 
    myInteger2 = parseInt(b); //PV-Große (kWp)


$(function () {


    // Calling my API with AJAX

      $.ajax({ 
      type: 'POST', 
      url: '/api/v2/energycalcsb', 
      data: {"data":[myInteger1,myInteger2]}, 
      dataType: 'json', 
      success: function(data){ //Sending the output to a function

        console.log('success', data); //Help to print the output of the API
      } 
      }); //AJAX to energy calculation module

 });    


</script> 

I want to receive the data from calc_test in my javascript function (AJAX-data)

How can I achieve this?

Answer 1

In your block:

success: function(data){ //Sending the output to a function
  console.log('success', data);
}

You can operate on the data right here. You can access your returned value with data.data_access , and perform any action you like upon it. Also, you shouldn't need the .to_json in your create action.

Answer 2

I solved it in this way:

From my controller I call the method I want to use in my model.

energy_calc_results = @calc.calc_test

and in calc_raw add:

  return output