How do I make my join paramater return more than one object in the response? - sql

Question

I have 3 models: team, developer and message.
I've been trying to receive a response to a request I send to an endpoint (/trigger_notification) like this:
Response
{
team_id: "team_id",
sms: {
id: "ARANDOMID",
mobiles: ["numer1","number2"]
content: "the content of this message",
sent_at: "18:54:34 IST 2021"
},
email: {
id: "ARANDOMID",
emails: ["email1#email.com", "email2#email.com"]
title: "Used in emails for title",
content: "the content of this message",
sent_at: "18:54:34 IST 2021"
}
}
While most of the response works just fine, the mobiles and emails specifically aren't retrieving all the assigned developers. This should be done when creating a new team with the following request params and some additional optional params in case you also want to create a new developer using nested attributes:
Adding “developers” from the Team API creates developers as well
{
"name": "Core Backend",
"dept_name": "Engineering",
"dev_ids": [id1, id2, id3, id5],
"developers":[
{
"full_name": "Some Name",
"email": "same.name#example.com",
"mobile": "1234567890"
},
{
"full_name": "Other Name",
"email": "other.name#example.com",
"mobile": "9876543210"
}
]
}
Specifically dev_ids is used to note the id of the devs included in a team (since they have an HMT association with each other). I created a separate join table to enable this functionality that is separate from the one used for the has_many through: association called memberships:
class Membership < ApplicationRecord
belongs_to :team
belongs_to :developer
end
So, I create a team and set the dev_ids: [3, 4].
However, I still find that the response ends up looking more like this:
{
"Response": {
"team_id": 3,
"sms": {
"id": "6cefeed1-f0c2-47c0-83cd-1db764e0acae",
"mobile": [],
"content": "This is a test message.",
"sent_at": "2021-10-12T12:51:30.620+05:30"
},
"email": {
"id": "cfddd984-ded0-40dd-badc-42d6694a5d92",
"email": [],
"title": "Test Message #5",
"content": "This is a test message.",
"sent_at": "2021-10-12T12:51:30.620+05:30"
}
}
}
For a few where I created the developer and the team together, it gives a response like this.
{
"Response": {
"team_id": 2,
"sms": {
"id": "435887a7-3729-4b35-b75f-10784a9d056c",
"mobile": [
"1234567890"
],
"content": "This is a test message.",
"sent_at": "2021-10-12T12:52:22.629+05:30"
},
"email": {
"id": "8e4a642c-2008-42b7-b2f8-77319fb7a71e",
"email": [
"pierceb#gmail.com"
],
"title": "Test Message #5",
"content": "This is a test message.",
"sent_at": "2021-10-12T12:52:22.629+05:30"
}
}
}
Controller for this action:
trigger_controller.rb
class TriggerController < ApplicationController
require 'securerandom'
def notification
#message = Message.new(message_params)
#id = params[:team_id]
#content = params[:content]
#title = params[:title]
# #mob = Team.joins(:developers).where(team_id: #id).pluck(:mobile)
# #mob = Team.joins(:developers).pluck(:mobile)
# #mob = Team.includes(:developers).find(#id).pluck(:'developers.mobile')
#mob = Team.find(params[:team_id]).developers.pluck(:mobile)
#mail = Team.find(params[:team_id]).developers.pluck(:email)
tim = Time.now
if #message.save
respond_to do |format|
format.json { render json: { 'Response' => {:team_id => #id,
'sms' => { "id" => SecureRandom.uuid, "mobile" => #mob, :content => #content, "sent_at" => tim },
'email' => { "id" => SecureRandom.uuid, "email" => #mail, :title => #title, :content => #content, "sent_at" => tim } } } }
end
else
render json: #message.errors, status: :unprocessable_entity
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_message
#message = Message.find(params[:id])
end
# Only allow a list of trusted parameters through.
def message_params
params.permit(:team_id, :title, :content)
end
end
Models:
team.rb
class Team < ApplicationRecord
validates :name, presence: true
has_many :messages
has_many :developer_teams
has_many :developers, through: :developer_teams
accepts_nested_attributes_for :developers
end
developer.rb
class Developer < ApplicationRecord
validates :full_name, presence: true
has_many :developer_teams
has_many :teams, through: :developer_teams
end
message.rb
class Message < ApplicationRecord
validates :title, presence: true
belongs_to :team
end
Controller for team:
team_controller.rb
class TeamsController < ApplicationController
before_action :set_team, only: [:show, :update, :destroy]
# GET /teams
def index
#teams = Team.all
render json: #teams
end
# GET /teams/1
def show
render json: #team
end
# POST /teams
def create
#team = Team.new(plus_params)
ActiveRecord::Base.transaction do
# if plus_params.has_key?(:dev_ids)
# #team.developer_ids << Developer.find(plus_params.dev_ids)
# end
# if plus_params.has_key?(:developer_attributes)
# #team.developers << Developer.insert_all(plus_params.developer_attributes)
# end
#team.save!
end
render json: #team, status: :created, location: #team
rescue
render json: #team.errors, status: :unprocessable_entity
end
# PATCH/PUT /teams/1
def update
if #team.update(team_params)
render json: #team
else
render json: #team.errors, status: :unprocessable_entity
end
end
# DELETE /teams/1
def destroy
#team.destroy
end
private
# Use callbacks to share common setup or constraints between actions.
def set_team
#team = Team.find(params[:id])
end
# Only allow a list of trusted parameters through.
def team_params
params.require(:team).permit(:name, :dept_name, dev_ids: [])
end
def plus_params
params.require(:team).permit(:name, :dept_name, dev_ids: [], :developers_attributes => [:full_name, :email, :mobile])
end
end
Here's what the log usually shows when I send a request at the /trigger_notification endpoint:
Started POST "/trigger_notification" for ::1 at 2021-10-12 13:01:16 +0530
Processing by TriggerController#notification as */*
Parameters: {"team_id"=>6, "title"=>"Test Message #5", "content"=>"This is a test message.", "trigger"=>{"team_id"=>6, "title"=>"Test Message #5", "content"=>"This is a test message."}}
Unpermitted parameter: :trigger
Team Load (0.7ms) SELECT "teams".* FROM "teams" WHERE "teams"."id" = $1 LIMIT $2 [["id", 6], ["LIMIT", 1]]
↳ app/controllers/trigger_controller.rb:11:in `notification'
(1.0ms) SELECT "developers"."mobile" FROM "developers" INNER JOIN "developer_teams" ON "developers"."id" = "developer_teams"."developer_id" WHERE "developer_teams"."team_id" = $1 [["team_id", 6]]
↳ app/controllers/trigger_controller.rb:11:in `notification'
CACHE Team Load (0.0ms) SELECT "teams".* FROM "teams" WHERE "teams"."id" = $1 LIMIT $2 [["id", 6], ["LIMIT", 1]]
↳ app/controllers/trigger_controller.rb:12:in `notification'
(0.4ms) SELECT "developers"."email" FROM "developers" INNER JOIN "developer_teams" ON "developers"."id" = "developer_teams"."developer_id" WHERE "developer_teams"."team_id" = $1 [["team_id", 6]]
↳ app/controllers/trigger_controller.rb:12:in `notification'
CACHE Team Load (0.1ms) SELECT "teams".* FROM "teams" WHERE "teams"."id" = $1 LIMIT $2 [["id", 6], ["LIMIT", 1]]
↳ app/controllers/trigger_controller.rb:15:in `notification'
TRANSACTION (0.4ms) BEGIN
↳ app/controllers/trigger_controller.rb:15:in `notification'
Message Create (1.2ms) INSERT INTO "messages" ("team_id", "title", "content", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5) RETURNING "id" [["team_id", 6], ["title", "Test Message #5"], ["content", "This is a test message."], ["created_at", "2021-10-12 07:31:16.420140"], ["updated_at", "2021-10-12 07:31:16.420140"]]
↳ app/controllers/trigger_controller.rb:15:in `notification'
TRANSACTION (7.7ms) COMMIT
↳ app/controllers/trigger_controller.rb:15:in `notification'
Completed 200 OK in 37ms (Views: 0.5ms | ActiveRecord: 12.2ms | Allocations: 5075)
Thanks in advance!