Question

I’ve a model named GuestOrder:

class GuestOrder < ActiveRecord::Base
end

# == Schema Information
#
# Table name: guest_orders
#
#  id             :integer         not null, primary key
#  notes          :string(255)
#  adults         :integer
#  children       :integer
#  created        :datetime
#  placed         :datetime
#  billed         :datetime
#  user_id        :integer
#  guest_table_id :integer
#  take_away_id   :integer
#  created_at     :datetime
#  updated_at     :datetime

And a controller

class ApiController < ApplicationController
  def getOrdersByDate
    @guest_orders = GuestOrder.where(:created_at => (params[:created]))
    render json: @guest_orders
  end
end

In routes.rb

  match '/api/getOrdersByDate'

When I try to get this in url

http://localhost:3000/api/getOrdersByDate?:created=2012-4-5

I got all the records not restricted by date

In server I got select * from guest_orders

Started GET "/api/getOrdersByDate?:created=2012-4-5" for 127.0.0.1 at 2012-04-06 13:19:59 +0530
  Processing by ApiController#getOrdersByDate as HTML
  Parameters: {":created"=>"2012-4-5"}
  GuestOrder Load (26.3ms)  SELECT "guest_orders".* FROM "guest_orders"
Completed 200 OK in 47ms (Views: 1.5ms | ActiveRecord: 26.3ms)


Started GET "/api/getOrdersByDate?:created=2012-4-5" for 127.0.0.1 at 2012-04-06 13:21:21 +0530
  Processing by ApiController#getOrdersByDate as HTML
  Parameters: {":created"=>"2012-4-5"}
  GuestOrder Load (1.7ms)  SELECT "guest_orders".* FROM "guest_orders"
Completed 200 OK in 47ms (Views: 1.4ms | ActiveRecord: 1.7ms)

Records in my DB have records in date 2012-03-22, 2012-04-05, 2012-04-06

How can I query in getOrdersByDate to get records of a particular date.

Answer 1

You don’t need the colon in your request, HashWithIndifferentAccess wiill do the sym lookup for you.

http://localhost:3000/api/getOrdersByDate?created=2012-4-5

But the problem looks interesting, because passing a nil to a where conditions should cause the following query:

SELECT "guest_orders".* FROM "guest_orders" WHERE "created_at" IS NULL

And in your case the whole SQL WHERE condition is missing.

Update #1

Seems like reloading needed.

To fetch the records for a date you could use the following method:

time = Time.zone.parse(params[:created])
range = time.beginning_of_day..time.end_of_day
@guest_orders = GuestOrder.where(:created_at => range)

Update #2

If you have a start and an end date:

t_start = Time.zone.parse(params[:start])
t_end = Time.zone.parse(params[:end])
range = t_start.beginning_of_day..t_end.end_of_day
@guest_orders = GuestOrder.where(:created_at => range)