Create user ban model

Co-authored-by: Georg Gadinger <nilsding@nilsding.org>

app/models/user.rb

@@ -49,6 +49,11 @@ class User < ApplicationRecord
   has_one :profile, dependent: :destroy
   has_one :theme, dependent: :destroy
 
+  has_many :user_bans, dependent: :destroy
+  has_many :banned_users, class_name: 'UserBan',
+                          foreign_key: 'banned_by_id',
+                          dependent: :nullify
+
   SCREEN_NAME_REGEX = /\A[a-zA-Z0-9_]{1,16}\z/
   WEBSITE_REGEX = /https?:\/\/([A-Za-z.\-]+)\/?(?:.*)/i
 

app/models/user_ban.rb

@@ -0,0 +1,4 @@
+class UserBan < ApplicationRecord
+  belongs_to :user
+  belongs_to :banned_by, class_name: 'User'
+end

db/migrate/20210814134115_create_user_bans.rb

@@ -0,0 +1,28 @@
+class CreateUserBans < ActiveRecord::Migration[5.2]
+  def up
+    create_table :user_bans do |t|
+      t.bigint :user_id
+      t.string :reason
+      t.datetime :expires_at
+      t.bigint :banned_by_id, nullable: true
+
+      t.timestamps
+    end
+
+    # foxy's functional fqueries
+    execute "INSERT INTO user_bans
+    (user_id, reason, expires_at, created_at, updated_at)
+    SELECT users.id, users.ban_reason, users.banned_until, users.updated_at, NOW() FROM users
+    WHERE banned_until IS NOT NULL AND NOT permanently_banned;"
+
+
+    execute "INSERT INTO user_bans
+    (user_id, reason, expires_at, created_at, updated_at)
+    SELECT users.id, users.ban_reason, NULL, users.updated_at, NOW() FROM users
+    WHERE permanently_banned;"
+  end
+
+  def down
+    drop_table :user_bans
+  end
+end

db/schema.rb

@@ -248,6 +248,15 @@ ActiveRecord::Schema.define(version: 2021_12_28_135426) do
     t.index ["user_id", "code"], name: "index_totp_recovery_codes_on_user_id_and_code"
   end
 
+  create_table "user_bans", force: :cascade do |t|
+    t.bigint "user_id"
+    t.string "reason"
+    t.datetime "expires_at"
+    t.bigint "banned_by_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "users", id: :bigint, default: -> { "gen_timestamp_id('users'::text)" }, force: :cascade do |t|
     t.string "email", default: "", null: false
     t.string "encrypted_password", default: "", null: false

spec/models/user_ban_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe UserBan, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end