Gon Gem for Rails上的红宝石观看功能观看所有变量

Question

gon is a gem for ruby on rails to pass data from controller to view's javascript.

It works fine,just pass data,and watch one variable.

but when I have normal data(no need dynamic watch ) and data1 (need watch )teogeher,problem happens.

Gon watch all variables instead of only watch the gon.watch.data1.

That cause refresh time very very long (7k ms plus)

web page always hang.

anyone face this problem before? how to solve this?

code in my controller

class GmapsController < ApplicationController
  def index
    @i=0
    @Nstatic=Array.new(NoiseDevice.all.length) {Array.new(4)} 
    @Vstatic=Array.new(VibrationDevice.all.length) {Array.new(4)}     
    @vabrdevices = VibrationDevice.find(:all)

    @vabrdevices.each do |vabrdevice|
    @Vstatic[@i][0]=Project.where(id: vabrdevice.project_id).pluck(:client_name).first.to_s

    @Vstatic[@i][1]=vabrdevice.latitude #
    @Vstatic[@i][2]=vabrdevice.longitude #

    @Vstatic[@i][3]=VibrationDevice.where(id: vabrdevice.id).pluck(:cont_value).first.to_s

    @i+=1
    end

    @i=0
    @noiseDevices = NoiseDevice.find(:all)
    @noiseDevices.each do |noiseDevice|
    @Nstatic[@i][0]=Project.where(id: noiseDevice.project_id).pluck(:client_name).first.to_s
    address=Project.where(id: noiseDevice.project_id).pluck(:jobsite_location).first.gsub(/\s+/, "+")


    @Nstatic[@i][1]=noiseDevice.latitude #
    @Nstatic[@i][2]=noiseDevice.longitude #
    @Nstatic[@i][3]=NoiseDatum.order(:updated_at).where(noise_device_id: noiseDevice.id).pluck(:leq).first.to_s

    @i+=1
    end




    gon.nstatic=@Nstatic
    gon.vstatic=@Vstatic



    end

def ndataupdate
@test=Array.new
@test=VibrationDevice.pluck(:cont_value).to_s
gon.watch.test1=@test

end
end

Instead of update my test1 only, it updates all data which is loaded from database in this controller. even if I delete

gon.nstatic=@Nstatic gon.vstatic=@Vstatic

gon will load all data retrieved from database in this controller instead of part of it.

In order to make it display only refresh part , I delete all retrieve data function ...

Answer 1

maybe it's not answer, but maybe it somehow helps (comments are too long),

so, you could specify manualy url for updating variable like:

gon.watch('test1', {interval: <ms>, url: '<url>'}, '<callback>')

for checking available variables in your ndataupdate action you could write:

gon.all_variables

also you could try cleaning variables with:

gon.clear