feat: Add APIs for Campaigns (#2175)

app/models/account.rb

@@ -36,6 +36,7 @@ class Account < ApplicationRecord
   has_many :data_imports, dependent: :destroy
   has_many :users, through: :account_users
   has_many :inboxes, dependent: :destroy
+  has_many :campaigns, dependent: :destroy
   has_many :conversations, dependent: :destroy
   has_many :messages, dependent: :destroy
   has_many :contacts, dependent: :destroy
@@ -104,4 +105,8 @@ class Account < ApplicationRecord
   trigger.after(:insert).for_each(:row) do
     "execute format('create sequence IF NOT EXISTS conv_dpid_seq_%s', NEW.id);"
   end
+
+  trigger.name('camp_dpid_before_insert').after(:insert).for_each(:row) do
+    "execute format('create sequence IF NOT EXISTS camp_dpid_seq_%s', NEW.id);"
+  end
 end

app/models/campaign.rb

@@ -0,0 +1,49 @@
+# == Schema Information
+#
+# Table name: campaigns
+#
+#  id            :bigint           not null, primary key
+#  content       :text             not null
+#  description   :text
+#  enabled       :boolean          default(TRUE)
+#  title         :string           not null
+#  trigger_rules :jsonb
+#  created_at    :datetime         not null
+#  updated_at    :datetime         not null
+#  account_id    :bigint           not null
+#  display_id    :integer          not null
+#  inbox_id      :bigint           not null
+#  sender_id     :integer
+#
+# Indexes
+#
+#  index_campaigns_on_account_id  (account_id)
+#  index_campaigns_on_inbox_id    (inbox_id)
+#
+# Foreign Keys
+#
+#  fk_rails_...  (account_id => accounts.id)
+#  fk_rails_...  (inbox_id => inboxes.id)
+#
+class Campaign < ApplicationRecord
+  validates :account_id, presence: true
+  validates :inbox_id, presence: true
+  belongs_to :account
+  belongs_to :inbox
+  belongs_to :sender, class_name: 'User', optional: true
+
+  has_many :conversations, dependent: :nullify, autosave: true
+
+  after_commit :set_display_id, unless: :display_id?
+
+  private
+
+  def set_display_id
+    reload
+  end
+
+  # creating db triggers
+  trigger.before(:insert).for_each(:row) do
+    "NEW.display_id := nextval('camp_dpid_seq_' || NEW.account_id);"
+  end
+end

app/models/conversation.rb

@@ -14,6 +14,7 @@
 #  updated_at            :datetime         not null
 #  account_id            :integer          not null
 #  assignee_id           :integer
+#  campaign_id           :bigint
 #  contact_id            :bigint
 #  contact_inbox_id      :bigint
 #  display_id            :integer          not null
@@ -24,11 +25,13 @@
 #
 #  index_conversations_on_account_id                 (account_id)
 #  index_conversations_on_account_id_and_display_id  (account_id,display_id) UNIQUE
+#  index_conversations_on_campaign_id                (campaign_id)
 #  index_conversations_on_contact_inbox_id           (contact_inbox_id)
 #  index_conversations_on_team_id                    (team_id)
 #
 # Foreign Keys
 #
+#  fk_rails_...  (campaign_id => campaigns.id)
 #  fk_rails_...  (contact_inbox_id => contact_inboxes.id)
 #  fk_rails_...  (team_id => teams.id)
 #
@@ -54,6 +57,7 @@ class Conversation < ApplicationRecord
   belongs_to :contact
   belongs_to :contact_inbox
   belongs_to :team, optional: true
+  belongs_to :campaign, optional: true
 
   has_many :messages, dependent: :destroy, autosave: true
 

app/models/inbox.rb

@@ -36,6 +36,7 @@ class Inbox < ApplicationRecord
 
   belongs_to :channel, polymorphic: true, dependent: :destroy
 
+  has_many :campaigns, dependent: :destroy
   has_many :contact_inboxes, dependent: :destroy
   has_many :contacts, through: :contact_inboxes