Add polls plugin

db/migrate/20181110000000_create_polls.foodsoft_polls_engine.rb

@@ -0,0 +1,37 @@
+class CreatePolls < ActiveRecord::Migration
+  def change
+    create_table :polls do |t|
+      t.integer :created_by_user_id, null: false
+      t.string :name, null: false
+      t.text :description
+      t.datetime :starts
+      t.datetime :ends
+      t.boolean :one_vote_per_ordergroup, default: false, null: false
+      t.text :required_ordergroup_custom_fields
+      t.text :required_user_custom_fields
+      t.integer :voting_method, null: false
+      t.string :choices, array: true, null: false
+      t.integer :final_choice, index: true
+      t.integer :multi_select_count, default: 0, null: false
+      t.integer :min_points
+      t.integer :max_points
+      t.timestamps
+    end
+
+    create_table :poll_votes do |t|
+      t.references :poll, null: false
+      t.references :user, null: false
+      t.references :ordergroup
+      t.text :note
+      t.timestamps
+      t.index [:poll_id, :user_id, :ordergroup_id], unique: true
+    end
+
+    create_table :poll_choices do |t|
+      t.references :poll_vote, null: false
+      t.integer :choice, null: false
+      t.integer :value, null: false
+      t.index [:poll_vote_id, :choice], unique: true
+    end
+  end
+end