Allow Capybara test server host in HostAuthorization

Capybara starts a Puma server on 127.0.0.1:<random_port> for system tests. Rails HostAuthorization was blocking all requests from that host since it was not in the config.hosts allowlist, causing every page to return a blank 403 response and all system tests to fail. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Clean up and improve items-table styling
2026-04-02 19:10:23 +00:00 · 2026-03-25 18:42:24 +01:00 · 2026-03-22 01:06:38 +01:00 · 2026-03-19 20:30:16 +01:00
50 changed files with 434 additions and 784 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -15,9 +15,6 @@
 /config/master.key
 /config/puma.rb

-# Ignore test database.
-/db/test.sqlite3
-
 # Ignore all logfiles and tempfiles.
 /log/*
 /tmp/*
@@ -33,7 +30,7 @@

 /tmp/restart.txt

-# Ignore user files.
+# Ignore user files
 /.bash_history
 /.byebug_history
 /.config
@@ -41,7 +38,6 @@
 /.lesshst
 /.local
 /.mysql_history
-/.sqlite_history
 /.ssh
 /.vim
 /.viminfo
--- a/DESIGN.md
+++ b/DESIGN.md
@@ -32,14 +32,3 @@ whenever a change is considered, to avoid regressions.
    * as a standard with hardware implementations ensures both: computing
      efficiency and hardware/3rd party library compatibility as opposed to Ruby
      custom `BigDecimal` type
-
-### Database layer vs application layer data model constraints
-* database constraints are the final guard against data integrity corruption,
-    * they should safeguard against data referential integrity loss under _all_
-      data (not schema) manipulation scenarios, including application level
-      logic errors and direct data manipulation (e.g. through `dbconsole`),
-* application constraints can be as restrictive as database constraints or more,
-  but not less, as it doesn't serve any use case,
-    * proper application level constraints should prevent unhandled database
-      exception occurences, e.g `ActiveRecord::InvalidForeignKey` for operations
-      performed through Models (i.e. not `#delete_all` etc.)
--- a/15
+++ b/15
@@ -1,18 +1,14 @@
 source "https://rubygems.org"

 # The requirement for the Ruby version comes from Rails
-# NOTE: after updating Rails make sure that schema dump is not sorted:
-#   v8.1.3/activerecord/lib/active_record/schema_dumper.rb#L195
-# Waiting for this change to be reverted/configuration setting added:
-# https://github.com/rails/rails/pull/56842, https://github.com/rails/rails/pull/55414
-gem "rails", "~> 8.1.3"
+gem "rails", "~> 7.2.3"
 gem "sprockets-rails"
 gem "puma", "~> 6.0"
 gem "sassc-rails"
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]

-# TODO: select db gems automatically?
+# TODO: select db gems automatically
 #   database_config = ERB.new(File.read("config/database.yml")).result
 #   YAML.load(database_config, aliases: true).values.map { |env| env["adapter"] }.uniq
 group :mysql, optional: true do
@@ -46,4 +42,11 @@ group :test do
  # Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
  gem "capybara"
  gem "selenium-webdriver"
+
+  # Remove minitest version restriction after error fixed:
+  #   railties-7.2.3/lib/rails/test_unit/line_filtering.rb:7:in `run':
+  #     wrong number of arguments (given 3, expected 1..2) (ArgumentError)
+  #   from /var/www/.gem/ruby/3.3.0/gems/minitest-6.0.2/lib/minitest.rb:473:in
+  #     `block (2 levels) in run_suite'
+  gem "minitest", "< 6"
 end
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,85 +1,85 @@
 GEM
  remote: https://rubygems.org/
  specs:
-    action_text-trix (2.1.18)
-      railties
-    actioncable (8.1.3)
-      actionpack (= 8.1.3)
-      activesupport (= 8.1.3)
+    actioncable (7.2.3)
+      actionpack (= 7.2.3)
+      activesupport (= 7.2.3)
      nio4r (~> 2.0)
      websocket-driver (>= 0.6.1)
      zeitwerk (~> 2.6)
-    actionmailbox (8.1.3)
-      actionpack (= 8.1.3)
-      activejob (= 8.1.3)
-      activerecord (= 8.1.3)
-      activestorage (= 8.1.3)
-      activesupport (= 8.1.3)
+    actionmailbox (7.2.3)
+      actionpack (= 7.2.3)
+      activejob (= 7.2.3)
+      activerecord (= 7.2.3)
+      activestorage (= 7.2.3)
+      activesupport (= 7.2.3)
      mail (>= 2.8.0)
-    actionmailer (8.1.3)
-      actionpack (= 8.1.3)
-      actionview (= 8.1.3)
-      activejob (= 8.1.3)
-      activesupport (= 8.1.3)
+    actionmailer (7.2.3)
+      actionpack (= 7.2.3)
+      actionview (= 7.2.3)
+      activejob (= 7.2.3)
+      activesupport (= 7.2.3)
      mail (>= 2.8.0)
      rails-dom-testing (~> 2.2)
-    actionpack (8.1.3)
-      actionview (= 8.1.3)
-      activesupport (= 8.1.3)
+    actionpack (7.2.3)
+      actionview (= 7.2.3)
+      activesupport (= 7.2.3)
+      cgi
      nokogiri (>= 1.8.5)
-      rack (>= 2.2.4)
+      racc
+      rack (>= 2.2.4, < 3.3)
      rack-session (>= 1.0.1)
      rack-test (>= 0.6.3)
      rails-dom-testing (~> 2.2)
      rails-html-sanitizer (~> 1.6)
      useragent (~> 0.16)
-    actiontext (8.1.3)
-      action_text-trix (~> 2.1.15)
-      actionpack (= 8.1.3)
-      activerecord (= 8.1.3)
-      activestorage (= 8.1.3)
-      activesupport (= 8.1.3)
+    actiontext (7.2.3)
+      actionpack (= 7.2.3)
+      activerecord (= 7.2.3)
+      activestorage (= 7.2.3)
+      activesupport (= 7.2.3)
      globalid (>= 0.6.0)
      nokogiri (>= 1.8.5)
-    actionview (8.1.3)
-      activesupport (= 8.1.3)
+    actionview (7.2.3)
+      activesupport (= 7.2.3)
      builder (~> 3.1)
+      cgi
      erubi (~> 1.11)
      rails-dom-testing (~> 2.2)
      rails-html-sanitizer (~> 1.6)
-    activejob (8.1.3)
-      activesupport (= 8.1.3)
+    activejob (7.2.3)
+      activesupport (= 7.2.3)
      globalid (>= 0.3.6)
-    activemodel (8.1.3)
-      activesupport (= 8.1.3)
-    activerecord (8.1.3)
-      activemodel (= 8.1.3)
-      activesupport (= 8.1.3)
+    activemodel (7.2.3)
+      activesupport (= 7.2.3)
+    activerecord (7.2.3)
+      activemodel (= 7.2.3)
+      activesupport (= 7.2.3)
      timeout (>= 0.4.0)
-    activestorage (8.1.3)
-      actionpack (= 8.1.3)
-      activejob (= 8.1.3)
-      activerecord (= 8.1.3)
-      activesupport (= 8.1.3)
+    activestorage (7.2.3)
+      actionpack (= 7.2.3)
+      activejob (= 7.2.3)
+      activerecord (= 7.2.3)
+      activesupport (= 7.2.3)
      marcel (~> 1.0)
-    activesupport (8.1.3)
+    activesupport (7.2.3)
      base64
+      benchmark (>= 0.3)
      bigdecimal
      concurrent-ruby (~> 1.0, >= 1.3.1)
      connection_pool (>= 2.2.5)
      drb
      i18n (>= 1.6, < 2)
-      json
      logger (>= 1.4.2)
      minitest (>= 5.1)
      securerandom (>= 0.3)
      tzinfo (~> 2.0, >= 2.0.5)
-      uri (>= 0.13.1)
-    addressable (2.9.0)
+    addressable (2.8.8)
      public_suffix (>= 2.0.2, < 8.0)
    base64 (0.3.0)
-    bcrypt (3.1.22)
-    bigdecimal (4.1.2)
+    bcrypt (3.1.21)
+    benchmark (0.5.0)
+    bigdecimal (4.0.1)
    bindex (0.8.1)
    builder (3.3.0)
    byebug (13.0.0)
@@ -93,27 +93,28 @@ GEM
      rack-test (>= 0.6.3)
      regexp_parser (>= 1.5, < 3.0)
      xpath (~> 3.2)
+    cgi (0.5.1)
    concurrent-ruby (1.3.6)
    connection_pool (3.0.2)
    crass (1.0.6)
    date (3.5.1)
-    devise (5.0.3)
+    devise (5.0.2)
      bcrypt (~> 3.0)
      orm_adapter (~> 0.1)
      railties (>= 7.0)
      responders
      warden (~> 1.2.3)
    drb (2.2.3)
-    erb (6.0.4)
+    erb (6.0.2)
    erubi (1.13.1)
-    ffi (1.17.4-aarch64-linux-gnu)
-    ffi (1.17.4-aarch64-linux-musl)
-    ffi (1.17.4-arm-linux-gnu)
-    ffi (1.17.4-arm-linux-musl)
-    ffi (1.17.4-arm64-darwin)
-    ffi (1.17.4-x86_64-darwin)
-    ffi (1.17.4-x86_64-linux-gnu)
-    ffi (1.17.4-x86_64-linux-musl)
+    ffi (1.17.3-aarch64-linux-gnu)
+    ffi (1.17.3-aarch64-linux-musl)
+    ffi (1.17.3-arm-linux-gnu)
+    ffi (1.17.3-arm-linux-musl)
+    ffi (1.17.3-arm64-darwin)
+    ffi (1.17.3-x86_64-darwin)
+    ffi (1.17.3-x86_64-linux-gnu)
+    ffi (1.17.3-x86_64-linux-musl)
    globalid (1.3.0)
      activesupport (>= 6.1)
    i18n (1.14.8)
@@ -123,14 +124,13 @@ GEM
      activesupport (>= 6.0.0)
      railties (>= 6.0.0)
    io-console (0.8.2)
-    irb (1.18.0)
+    irb (1.17.0)
      pp (>= 0.6.0)
      prism (>= 1.3.0)
      rdoc (>= 4.0.0)
      reline (>= 0.4.2)
-    json (2.19.4)
    logger (1.7.0)
-    loofah (2.25.1)
+    loofah (2.25.0)
      crass (~> 1.0.2)
      nokogiri (>= 1.12.0)
    mail (2.9.0)
@@ -142,12 +142,10 @@ GEM
    marcel (1.1.0)
    matrix (0.4.3)
    mini_mime (1.1.5)
-    minitest (6.0.6)
-      drb (~> 2.0)
-      prism (~> 1.5)
+    minitest (5.27.0)
    mysql2 (0.5.7)
      bigdecimal
-    net-imap (0.6.4)
+    net-imap (0.6.3)
      date
      net-protocol
    net-pop (0.1.2)
@@ -157,21 +155,21 @@ GEM
    net-smtp (0.5.1)
      net-protocol
    nio4r (2.7.5)
-    nokogiri (1.19.3-aarch64-linux-gnu)
+    nokogiri (1.19.1-aarch64-linux-gnu)
      racc (~> 1.4)
-    nokogiri (1.19.3-aarch64-linux-musl)
+    nokogiri (1.19.1-aarch64-linux-musl)
      racc (~> 1.4)
-    nokogiri (1.19.3-arm-linux-gnu)
+    nokogiri (1.19.1-arm-linux-gnu)
      racc (~> 1.4)
-    nokogiri (1.19.3-arm-linux-musl)
+    nokogiri (1.19.1-arm-linux-musl)
      racc (~> 1.4)
-    nokogiri (1.19.3-arm64-darwin)
+    nokogiri (1.19.1-arm64-darwin)
      racc (~> 1.4)
-    nokogiri (1.19.3-x86_64-darwin)
+    nokogiri (1.19.1-x86_64-darwin)
      racc (~> 1.4)
-    nokogiri (1.19.3-x86_64-linux-gnu)
+    nokogiri (1.19.1-x86_64-linux-gnu)
      racc (~> 1.4)
-    nokogiri (1.19.3-x86_64-linux-musl)
+    nokogiri (1.19.1-x86_64-linux-musl)
      racc (~> 1.4)
    orm_adapter (0.5.0)
    pg (1.6.3)
@@ -188,32 +186,32 @@ GEM
    psych (5.3.1)
      date
      stringio
-    public_suffix (7.0.5)
+    public_suffix (7.0.2)
    puma (6.6.1)
      nio4r (~> 2.0)
    racc (1.8.1)
-    rack (3.2.6)
-    rack-session (2.1.2)
+    rack (3.2.5)
+    rack-session (2.1.1)
      base64 (>= 0.1.0)
      rack (>= 3.0.0)
    rack-test (2.2.0)
      rack (>= 1.3)
    rackup (2.3.1)
      rack (>= 3)
-    rails (8.1.3)
-      actioncable (= 8.1.3)
-      actionmailbox (= 8.1.3)
-      actionmailer (= 8.1.3)
-      actionpack (= 8.1.3)
-      actiontext (= 8.1.3)
-      actionview (= 8.1.3)
-      activejob (= 8.1.3)
-      activemodel (= 8.1.3)
-      activerecord (= 8.1.3)
-      activestorage (= 8.1.3)
-      activesupport (= 8.1.3)
+    rails (7.2.3)
+      actioncable (= 7.2.3)
+      actionmailbox (= 7.2.3)
+      actionmailer (= 7.2.3)
+      actionpack (= 7.2.3)
+      actiontext (= 7.2.3)
+      actionview (= 7.2.3)
+      activejob (= 7.2.3)
+      activemodel (= 7.2.3)
+      activerecord (= 7.2.3)
+      activestorage (= 7.2.3)
+      activesupport (= 7.2.3)
      bundler (>= 1.15.0)
-      railties (= 8.1.3)
+      railties (= 7.2.3)
    rails-dom-testing (2.3.0)
      activesupport (>= 5.0.0)
      minitest
@@ -221,28 +219,29 @@ GEM
    rails-html-sanitizer (1.7.0)
      loofah (~> 2.25)
      nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    railties (8.1.3)
-      actionpack (= 8.1.3)
-      activesupport (= 8.1.3)
+    railties (7.2.3)
+      actionpack (= 7.2.3)
+      activesupport (= 7.2.3)
+      cgi
      irb (~> 1.13)
      rackup (>= 1.0.0)
      rake (>= 12.2)
      thor (~> 1.0, >= 1.2.2)
      tsort (>= 0.2)
      zeitwerk (~> 2.6)
-    rake (13.4.2)
+    rake (13.3.1)
    rdoc (7.2.0)
      erb
      psych (>= 4.0.0)
      tsort
-    regexp_parser (2.12.0)
+    regexp_parser (2.11.3)
    reline (0.6.3)
      io-console (~> 0.5)
    responders (3.2.0)
      actionpack (>= 7.0)
      railties (>= 7.0)
    rexml (3.4.4)
-    rubyzip (3.3.0)
+    rubyzip (3.2.2)
    sassc (2.4.0)
      ffi (~> 1.9)
    sassc-rails (2.1.2)
@@ -252,7 +251,7 @@ GEM
      sprockets-rails
      tilt
    securerandom (0.4.1)
-    selenium-webdriver (4.43.0)
+    selenium-webdriver (4.41.0)
      base64 (~> 0.2)
      logger (~> 1.4)
      rexml (~> 3.2, >= 3.2.5)
@@ -266,32 +265,32 @@ GEM
      actionpack (>= 6.1)
      activesupport (>= 6.1)
      sprockets (>= 3.0.0)
-    sqlite3 (2.9.3-aarch64-linux-gnu)
-    sqlite3 (2.9.3-aarch64-linux-musl)
-    sqlite3 (2.9.3-arm-linux-gnu)
-    sqlite3 (2.9.3-arm-linux-musl)
-    sqlite3 (2.9.3-arm64-darwin)
-    sqlite3 (2.9.3-x86_64-darwin)
-    sqlite3 (2.9.3-x86_64-linux-gnu)
-    sqlite3 (2.9.3-x86_64-linux-musl)
+    sqlite3 (2.9.0-aarch64-linux-gnu)
+    sqlite3 (2.9.0-aarch64-linux-musl)
+    sqlite3 (2.9.0-arm-linux-gnu)
+    sqlite3 (2.9.0-arm-linux-musl)
+    sqlite3 (2.9.0-arm64-darwin)
+    sqlite3 (2.9.0-x86_64-darwin)
+    sqlite3 (2.9.0-x86_64-linux-gnu)
+    sqlite3 (2.9.0-x86_64-linux-musl)
    stringio (3.2.0)
    thor (1.5.0)
    tilt (2.7.0)
-    timeout (0.6.1)
+    timeout (0.6.0)
    tsort (0.2.0)
    turbo-rails (2.0.23)
      actionpack (>= 7.1.0)
      railties (>= 7.1.0)
    tzinfo (2.0.6)
      concurrent-ruby (~> 1.0)
-    uri (1.1.1)
    useragent (0.16.11)
    warden (1.2.9)
      rack (>= 2.0.9)
-    web-console (4.3.0)
-      actionview (>= 8.0.0)
+    web-console (4.2.1)
+      actionview (>= 6.0.0)
+      activemodel (>= 6.0.0)
      bindex (>= 0.4.0)
-      railties (>= 8.0.0)
+      railties (>= 6.0.0)
    websocket (1.2.11)
    websocket-driver (0.8.0)
      base64
@@ -316,10 +315,11 @@ DEPENDENCIES
  capybara
  devise
  importmap-rails
+  minitest (< 6)
  mysql2 (~> 0.5)
  pg (~> 1.5)
  puma (~> 6.0)
-  rails (~> 8.1.3)
+  rails (~> 7.2.3)
  sassc-rails
  selenium-webdriver
  sprockets-rails
--- a/README.md
+++ b/README.md
@@ -89,10 +89,14 @@ Running

 ### Standalone Rails server + Apache proxy

-Copy and customize Puma config template if required:
+Customize Puma config template:

    cp -a config/puma.rb.dist config/puma.rb

+and specify server IP/port, either with `port` or `bind`, e.g.:
+
+    bind 'tcp://0.0.0.0:3000'
+
 #### (option 1) Start server manually

    bundle exec rails s -e production
@@ -119,10 +123,9 @@ Contributing

 ### Gems

-Install development and testing gems, including at least MySQL and SQLite
-database adapters:
+Apart from database adapter, install development and testing gems:

-    bundle config --local with development test mysql sqlite
+    bundle config --local with mysql development test

 ### Configuration

@@ -135,29 +138,20 @@ assets.

 ### Database

-Grant database user privileges for development and test environments. Example
-below shows how to grant privileges to all databases which names start with
-`fixinme-` on MySQL:
+Grant database user privileges for development and test environments,
+possibly with different Ruby versions:

    > mysql -p
    mysql> create user `fixinme-dev`@localhost identified by '<some password>';
    mysql> grant all privileges on `fixinme-%`.* to `fixinme-dev`@localhost;
    mysql> flush privileges;

-Dumping development data before database reset:
-
-    mysqldump -h <address> -u <user> -p --no-create-info --no-tablespaces --complete-insert <database> > tmp/data.sql
-
 ### Development environment

 Starting application server in development environment:

    bundle exec rails s -e development

-Accessing database console when more than one test db is present:
-
-    bundle exec rails dbconsole -e test --db sqlite3
-
 For running rake tasks, prepend command with environment:

    RAILS_ENV=development bundle exec rails ...
@@ -170,22 +164,14 @@ Tests need to be run from within toplevel application directory:

        bundle exec rails test:system

-* system test(s) with seed or test name specified:
+* system test(s) with seed/test name specified:

-        bundle exec rails test:system --include test_add_unit --seed 64690
+        bundle exec rails test:system --seed 64690 --name test_add_unit

-* all tests from one file, optionally with seed:
+* all tests from one file, with optional seed:

        bundle exec rails test test/system/users_test.rb --seed 1234

-* system tests for selected database configuration (if multiple present):
-
-        bundle exec rails test:system --include /^test_sqlite3_/
-
-* single system test for all database configurations (if multiple present):
-
-        bundle exec rails test:system --include /^test_\\w+_add_unit$/
-
 ### Icons

 Pictogrammers Material Design Icons: https://pictogrammers.com/library/mdi/
--- a/app/assets/stylesheets/application.css
+++ b/app/assets/stylesheets/application.css
@@ -231,17 +231,12 @@ textarea:invalid {
  text-decoration: underline 1px var(--color-border-gray);
  text-underline-offset: 0.25em;
 }
+[name=cancel],
 .auxiliary {
-  border-color: var(--color-nav-gray);
+  border-color: var(--color-border-gray);
  color: var(--color-nav-gray);
  fill: var(--color-nav-gray);
 }
-table .button {
-  border-color: var(--color-border-gray);
-  font-weight: normal;
-  height: 100%;
-  padding: 0.4em;
-}
 .button:focus-visible,
 .tab:focus-visible,
 .tab:hover {
@@ -264,6 +259,13 @@ table .button {
  color: var(--color-blue);
  text-decoration-color: var(--color-blue);
 }
+table .button {
+  border-color: var(--color-border-gray);
+  color: var(--color-table-gray);
+  font-weight: normal;
+  height: 100%;
+  padding: 0.4em;
+}


 /* NOTE: collapse gaps around empty rows (`topside`) once possible with
@@ -358,20 +360,20 @@ header {
  line-height: 2.2em;
  pointer-events: auto;
 }
-.flash::before {
-  filter: invert(1);
+.flash:before {
+  filter: invert();
  height: 1.4em;
  margin: 0 0.5em;
  width: 1.4em;
 }
-.flash.alert::before {
+.flash.alert:before {
  content: url('pictograms/alert-outline.svg');
 }
 .flash.alert {
  border-color: var(--color-red);
  background-color: var(--color-red);
 }
-.flash.notice::before {
+.flash.notice:before {
  content: url('pictograms/check-circle-outline.svg');
 }
 .flash.notice {
@@ -435,18 +437,15 @@ header {

 .tabular-form table {
  border: none;
-  border-spacing: 0;
+  border-spacing: 0.4em 0;
+  margin-inline: -0.4em;
 }
 .tabular-form table td {
  border: none;
-  padding-inline-start: 0.4em;
  vertical-align: middle;
 }
-.tabular-form table td:first-child {
-  padding-inline-start: 0;
-}
-.tabular-form table td:last-child {
-  padding-inline-end: 0;
+.tabular-form table td {
+  padding-inline: 0;
 }
 .tabular-form table :is(form, input, select, textarea):only-child {
  margin-inline-start: 0;
--- a/app/controllers/readouts_controller.rb
+++ b/app/controllers/readouts_controller.rb
@@ -6,7 +6,7 @@ class ReadoutsController < ApplicationController
  def new
    @quantities -= @prev_quantities
    # TODO: raise ParameterInvalid if new_quantities.empty?
-    @readouts = @quantities.map { |q| q.readouts.build }
+    @readouts = current_user.readouts.build(@quantities.map { |q| {quantity: q} })

    @user_units = current_user.units.ordered

--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -208,7 +208,9 @@ module ApplicationHelper

  def image_link_to_unless_current(name, image = nil, options = nil, html_options = {})
    name, html_options = link_or_button_options(:link, name, image, html_options)
-    if current_page?(options, method: [:get, :post])
+    # NOTE: Starting from Rails 8.1.0, below condition can be replaced with:
+    #   current_page?(options, method: [:get, :post])
+    if request.path == url_for(options)
      html_options = html_options.deep_merge DISABLED_ATTRIBUTES
    end
    link_to name, options, html_options
--- a/app/models/note.rb
+++ b/app/models/note.rb
@@ -1,3 +0,0 @@
-class Note < ApplicationRecord
-  ATTRIBUTES = [:text]
-end
--- a/app/models/quantity.rb
+++ b/app/models/quantity.rb
@@ -6,7 +6,6 @@ class Quantity < ApplicationRecord
  belongs_to :parent, optional: true, class_name: "Quantity"
  has_many :subquantities, ->{ order(:name) }, class_name: "Quantity",
    inverse_of: :parent, dependent: :restrict_with_error
-  has_many :readouts, dependent: :restrict_with_error

  validate if: ->{ parent.present? } do
    errors.add(:parent, :user_mismatch) unless user_id == parent.user_id
--- a/app/models/readout.rb
+++ b/app/models/readout.rb
@@ -4,6 +4,4 @@ class Readout < ApplicationRecord
  belongs_to :user
  belongs_to :quantity
  belongs_to :unit
-
-  # TODO: validate quantity.user_id == unit.user_id != NULL
 end
--- a/app/models/unit.rb
+++ b/app/models/unit.rb
@@ -77,14 +77,16 @@ class Unit < ApplicationRecord
      .from(units).group(:base_id, :symbol)
  }
  scope :ordered, ->{
-    left_outer_joins(:base).order([
-      arel_table.coalesce(Arel::Table.new(:bases_units)[:symbol], arel_table[:symbol]),
-      arel_table[:base_id].not_eq(nil),
-      arel_table[:multiplier],
-      arel_table[:symbol]
-    ])
+    left_outer_joins(:base).order(ordering)
  }

+  def self.ordering
+    [arel_table.coalesce(Arel::Table.new(:bases_units)[:symbol], arel_table[:symbol]),
+     arel_table[:base_id].not_eq(nil),
+     :multiplier,
+     :symbol]
+  end
+
  before_destroy do
    # TODO: disallow destruction if any object depends on this unit
    nil
@@ -112,10 +114,11 @@ class Unit < ApplicationRecord

  def successive
    units = Unit.arel_table
-    Unit.with(units_with_lag: user.units.ordered.select(
-      units[Arel.star],
-      Arel::Nodes::NamedFunction.new('LAG', [units[:id]]).over.as('lag_id')
-    )).from(Arel::Table.new(:units_with_lag).as(:units))
-      .where(units[:lag_id].eq(id)).first
+    lead = Arel::Nodes::NamedFunction.new('LAG', [units[:id]])
+    window = Arel::Nodes::Window.new.order(*Unit.ordering)
+    lag_id = lead.over(window).as('lag_id')
+    Unit.with(
+      units: user.units.left_outer_joins(:base).select(units[Arel.star], lag_id)
+    ).where(units[:lag_id].eq(id)).first
  end
 end
--- a/app/views/measurements/_form.html.erb
+++ b/app/views/measurements/_form.html.erb
@@ -33,7 +33,7 @@
  <div class="flex reverse">
    <%= form.button id: :create_measurement_button, disabled: true -%>
    <%= image_link_to t(:cancel), "close-outline", measurements_path, name: :cancel,
-      class: 'auxiliary dangerous', onclick: render_turbo_stream('form_close') %>
+      class: 'dangerous', onclick: render_turbo_stream('form_close') %>
  </div>
 <% end %>

--- a/bin/ci
+++ b/bin/ci
@@ -1,6 +0,0 @@
-#!/usr/bin/env ruby
-require_relative "../config/boot"
-require "active_support/continuous_integration"
-
-CI = ActiveSupport::ContinuousIntegration
-require_relative "../config/ci.rb"
--- a/bin/dev
+++ b/bin/dev
@@ -1,2 +0,0 @@
-#!/usr/bin/env ruby
-exec "./bin/rails", "server", *ARGV
--- a/bin/fixinme.service.dist
+++ b/bin/fixinme.service.dist
--- a/bin/setup
+++ b/bin/setup
@@ -1,10 +1,11 @@
 #!/usr/bin/env ruby
 require "fileutils"

+# path to your application root.
 APP_ROOT = File.expand_path("..", __dir__)

 def system!(*args)
-  system(*args, exception: true)
+  system(*args) || abort("\n== Command #{args} failed ==")
 end

 FileUtils.chdir APP_ROOT do
@@ -13,6 +14,7 @@ FileUtils.chdir APP_ROOT do
  # Add necessary setup steps to this file.

  puts "== Installing dependencies =="
+  system! "gem install bundler --conservative"
  system("bundle check") || system!("bundle install")

  # puts "\n== Copying sample files =="
@@ -22,14 +24,10 @@ FileUtils.chdir APP_ROOT do

  puts "\n== Preparing database =="
  system! "bin/rails db:prepare"
-  system! "bin/rails db:reset" if ARGV.include?("--reset")

  puts "\n== Removing old logs and tempfiles =="
  system! "bin/rails log:clear tmp:clear"

-  unless ARGV.include?("--skip-server")
-    puts "\n== Starting development server =="
-    STDOUT.flush # flush the output before exec(2) so that it displays
-    exec "bin/dev"
-  end
+  puts "\n== Restarting application server =="
+  system! "bin/rails restart"
 end
--- a/config/application.rb.dist
+++ b/config/application.rb.dist
@@ -18,17 +18,14 @@ require "rails/test_unit/railtie"
 # you've limited to :test, :development, or :production.
 Bundler.require(*Rails.groups)

-require_relative '../lib/default_settings_strategy'
-
 module FixinMe
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
-    config.load_defaults 8.1
+    config.load_defaults 7.0

-    # Please, add to the `ignore` list any other `lib` subdirectories that do
-    # not contain `.rb` files, or that should not be reloaded or eager loaded.
-    # Common ones are `templates`, `generators`, or `middleware`, for example.
-    config.autoload_lib(ignore: %w[assets tasks])
+    # Autoload lib/, required e.g. for core library extensions.
+    # https://guides.rubyonrails.org/autoloading_and_reloading_constants.html#config-autoload-lib-ignore.
+    config.autoload_lib(ignore: %w(assets tasks))

    # Configuration for the application, engines, and railties goes here.
    #
@@ -41,19 +38,16 @@ module FixinMe
    config.action_dispatch.rescue_responses['ApplicationController::AccessForbidden'] = :forbidden
    config.action_dispatch.rescue_responses['ApplicationController::ParameterInvalid'] = :unprocessable_entity

-    # Set default migrations parameters.
-    config.active_record.migration_strategy = DefaultSettingsStrategy
-
    # SETUP: Below settings need to be updated on a per-installation basis.
    #
-    # Set host to be used by links generated in mailer templates.
-    config.action_mailer.default_url_options = {host: 'localhost', protocol: 'https'}
+    # URL to use in sent e-mails.
+    config.action_mailer.default_url_options = {host: 'localhost', :protocol => 'https'}
    # https://guides.rubyonrails.org/configuring.html#config-action-mailer-delivery-method
    config.action_mailer.delivery_method = :sendmail

    # List of hosts this app is available at.
    # https://guides.rubyonrails.org/configuring.html#actiondispatch-hostauthorization
-    config.hosts |= ['localhost']
+    config.hosts += ['localhost', 'example.com', IPAddr.new('1.2.3.4/32')]

    # Email address of admin account
    config.admin = 'admin@localhost'
--- a/config/ci.rb
+++ b/config/ci.rb
@@ -1,20 +0,0 @@
-# Run using bin/ci
-
-CI.run do
-  step "Setup", "bin/setup --skip-server"
-
-  step "Security: Importmap vulnerability audit", "bin/importmap audit"
-  step "Tests: Rails", "bin/rails test"
-  step "Tests: Seeds", "env RAILS_ENV=test bin/rails db:seed:replant"
-
-  # Optional: Run system tests
-  # step "Tests: System", "bin/rails test:system"
-
-  # Optional: set a green GitHub commit status to unblock PR merge.
-  # Requires the `gh` CLI and `gh extension install basecamp/gh-signoff`.
-  # if success?
-  #   step "Signoff: All systems go. Ready for merge and deploy.", "gh signoff"
-  # else
-  #   failure "Signoff: CI failed. Do not merge or deploy.", "Fix the issues and try again."
-  # end
-end
--- a/config/database.yml.dist
+++ b/config/database.yml.dist
@@ -24,45 +24,27 @@
 # Read https://guides.rubyonrails.org/configuring.html#configuring-a-database
 # for a full overview on how database connection configuration can be specified.
 default: &default
-  pool: <%= ENV.fetch('RAILS_MAX_THREADS', 3) %>
-
-#mysql_default: &mysql_default
-#  <<: *default
-#  username: fixinme
-#  password: Some-password1%
-#  host: 127.0.0.1
-#  encoding: utf8mb4
-#  collation: utf8mb4_0900_as_ci
+  adapter: mysql2
+  encoding: utf8mb4
+  collation: utf8mb4_0900_as_ci
+  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  username: fixinme
+  password: Some-password1%
+  socket: /run/mysqld/mysqld.sock

 production:
  <<: *default
-  adapter: sqlite3
-  database: db/production.sqlite3
+  database: fixinme

-# Unless you're planning on developing the application, you can skip/remove
+# Unless you're planning on developing the application, you can skip
 # configurations for development and test databases altogether.
 #development:
-#  <<: *mysql_default
-#  adapter: mysql2
+#  <<: *default
 #  database: fixinme_dev

-# Warning: The database(s) defined as "test" will be erased and
+# Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
 #test:
-#  <<: *mysql_default
-#  adapter: mysql2
+#  <<: *default
 #  database: fixinme_test
-
-# Multiple test databases can be provided. When more than one test db is
-# present, every test task (test, test:models, test:system, etc.) runs against
-# all of them.
-#test:
-#  mysql2:
-#    <<: *mysql_default
-#    adapter: mysql2
-#    database: fixinme_test
-#  sqlite3:
-#    <<: *default
-#    adapter: sqlite3
-#    database: db/test.sqlite3
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -3,8 +3,10 @@ require "active_support/core_ext/integer/time"
 Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

-  # Make code changes take effect immediately without server restart.
-  config.enable_reloading = true
+  # In the development environment your application's code is reloaded any time
+  # it changes. This slows down response time but is perfect for development
+  # since you don't have to restart the web server when you make code changes.
+  config.cache_classes = false

  # Do not eager load code on boot.
  config.eager_load = false
@@ -12,52 +14,54 @@ Rails.application.configure do
  # Show full error reports.
  config.consider_all_requests_local = true

-  # Enable server timing.
+  # Enable server timing
  config.server_timing = true

-  # Enable/disable Action Controller caching. By default Action Controller caching is disabled.
-  # Run rails dev:cache to toggle Action Controller caching.
+  # Enable/disable caching. By default caching is disabled.
+  # Run rails dev:cache to toggle caching.
  if Rails.root.join("tmp/caching-dev.txt").exist?
    config.action_controller.perform_caching = true
    config.action_controller.enable_fragment_cache_logging = true
-    config.public_file_server.headers = { "cache-control" => "public, max-age=#{2.days.to_i}" }
+
+    config.cache_store = :memory_store
+    config.public_file_server.headers = {
+      "Cache-Control" => "public, max-age=#{2.days.to_i}"
+    }
  else
    config.action_controller.perform_caching = false
-  end

-  # Change to :null_store to avoid any caching.
-  config.cache_store = :memory_store
+    config.cache_store = :null_store
+  end

  # Don't care if the mailer can't send.
  config.action_mailer.raise_delivery_errors = false

-  # Make template changes take effect immediately.
  config.action_mailer.perform_caching = false

  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log

+  # Raise exceptions for disallowed deprecations.
+  config.active_support.disallowed_deprecation = :raise
+
+  # Tell Active Support which deprecation messages to disallow.
+  config.active_support.disallowed_deprecation_warnings = []
+
  # Raise an error on page load if there are pending migrations.
  config.active_record.migration_error = :page_load

  # Highlight code that triggered database queries in logs.
  config.active_record.verbose_query_logs = true

-  # Append comments with runtime information tags to SQL queries in logs.
-  config.active_record.query_log_tags_enabled = true
-
-  # Highlight code that enqueued background job in logs.
-  config.active_job.verbose_enqueue_logs = true
-
-  # Highlight code that triggered redirect in logs.
-  config.action_dispatch.verbose_redirect_logs = true
+  # Suppress logger output for asset requests.
+  config.assets.quiet = true

  # Raises error for missing translations.
  # config.i18n.raise_on_missing_translations = true

  # Annotate rendered view with file names.
-  config.action_view.annotate_rendered_view_with_filenames = true
+  # config.action_view.annotate_rendered_view_with_filenames = true

-  # Raise error when a before_action's only/except options reference missing actions.
-  config.action_controller.raise_on_missing_callback_actions = true
+  # Uncomment if you wish to allow Action Cable access from any origin.
+  # config.action_cable.disable_request_forgery_protection = true
 end
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -4,83 +4,78 @@ Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # Code is not reloaded between requests.
-  config.enable_reloading = false
+  config.cache_classes = true

-  # Eager load code on boot for better performance and memory savings (ignored by Rake tasks).
+  # Eager load code on boot. This eager loads most of Rails and
+  # your application in memory, allowing both threaded web servers
+  # and those relying on copy on write to perform better.
+  # Rake tasks automatically ignore this option for performance.
  config.eager_load = true

-  # Full error reports are disabled.
-  config.consider_all_requests_local = false
-
-  # Turn on fragment caching in view templates.
+  # Full error reports are disabled and caching is turned on.
+  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

-  # Cache assets for far-future expiry since they are all digest stamped.
-  config.public_file_server.headers = { "cache-control" => "public, max-age=#{1.year.to_i}" }
+  # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
+  # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
+  # config.require_master_key = true
+
+  # Disable serving static files from the `/public` folder by default since
+  # Apache or NGINX already handles this.
+  config.public_file_server.enabled = ENV["RAILS_SERVE_STATIC_FILES"].present?
+
+  # Compress CSS using a preprocessor.
+  # config.assets.css_compressor = :sass
+
+  # Do not fallback to assets pipeline if a precompiled asset is missed.
+  config.assets.compile = false

  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
  # config.asset_host = "http://assets.example.com"

-  # Assume all access to the app is happening through a SSL-terminating reverse proxy.
-  config.assume_ssl = true
+  # Specifies the header that your server uses for sending files.
+  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for Apache
+  # config.action_dispatch.x_sendfile_header = "X-Accel-Redirect" # for NGINX

  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
-  config.force_ssl = true
+  # config.force_ssl = true

-  # Skip http-to-https redirect for the default health check endpoint.
-  # config.ssl_options = { redirect: { exclude: ->(request) { request.path == "/up" } } }
+  # Include generic and useful information about system operation, but avoid logging too much
+  # information to avoid inadvertent exposure of personally identifiable information (PII).
+  config.log_level = :info

-  # Log to STDOUT with the current request id as a default log tag.
+  # Prepend all log lines with the following tags.
  config.log_tags = [ :request_id ]
-  config.logger   = ActiveSupport::TaggedLogging.logger(STDOUT)

-  # Change to "debug" to log everything (including potentially personally-identifiable information!).
-  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
-
-  # Prevent health checks from clogging up the logs.
-  config.silence_healthcheck_path = "/up"
-
-  # Don't log any deprecations.
-  config.active_support.report_deprecations = false
-
-  # Replace the default in-process memory cache store with a durable alternative.
+  # Use a different cache store in production.
  # config.cache_store = :mem_cache_store

-  # Replace the default in-process and non-durable queuing backend for Active Job.
-  # config.active_job.queue_adapter = :resque
+  config.action_mailer.perform_caching = false

  # Ignore bad email addresses and do not raise email delivery errors.
  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
  # config.action_mailer.raise_delivery_errors = false

-  # Specify outgoing SMTP server. Remember to add smtp/* credentials via bin/rails credentials:edit.
-  # config.action_mailer.smtp_settings = {
-  #   user_name: Rails.application.credentials.dig(:smtp, :user_name),
-  #   password: Rails.application.credentials.dig(:smtp, :password),
-  #   address: "smtp.example.com",
-  #   port: 587,
-  #   authentication: :plain
-  # }
-
  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
  # the I18n.default_locale when a translation cannot be found).
  config.i18n.fallbacks = true

+  # Don't log any deprecations.
+  config.active_support.report_deprecations = false
+
+  # Use default logging formatter so that PID and timestamp are not suppressed.
+  config.log_formatter = ::Logger::Formatter.new
+
+  # Use a different logger for distributed setups.
+  # require "syslog/logger"
+  # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new "app-name")
+
+  if ENV["RAILS_LOG_TO_STDOUT"].present?
+    logger           = ActiveSupport::Logger.new(STDOUT)
+    logger.formatter = config.log_formatter
+    config.logger    = ActiveSupport::TaggedLogging.new(logger)
+  end
+
  # Do not dump schema after migrations.
  config.active_record.dump_schema_after_migration = false
-
-  # Only use :id for inspections in production.
-  config.active_record.attributes_for_inspect = [ :id ]
-
-  # Enable DNS rebinding protection and other `Host` header attacks.
-  # config.hosts = [
-  #   "example.com",     # Allow requests from example.com
-  #   /.*\.example\.com/ # Allow requests from subdomains like `www.example.com`
-  # ]
-  #
-  # Skip DNS rebinding protection for the default health check endpoint.
-  # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
-
-  # Protect e-mail addresses from being logged only in production.
-  config.filter_parameters += [:email]
 end
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -1,3 +1,5 @@
+require "active_support/core_ext/integer/time"
+
 # The test environment is used exclusively to run your application's
 # test suite. You never need to work with it otherwise. Remember that
 # your test database is "scratch space" for the test suite and is wiped
@@ -6,49 +8,57 @@
 Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

-  # While tests run files are not watched, reloading is not necessary.
-  config.enable_reloading = false
+  # Turn false under Spring and add config.action_view.cache_template_loading = true.
+  config.cache_classes = true

-  # Eager loading loads your entire application. When running a single test locally,
-  # this is usually not necessary, and can slow down your test suite. However, it's
-  # recommended that you enable it in continuous integration systems to ensure eager
-  # loading is working properly before deploying your code.
+  # Eager loading loads your whole application. When running a single test locally,
+  # this probably isn't necessary. It's a good idea to do in a continuous integration
+  # system, or in some way before deploying your code.
  config.eager_load = ENV["CI"].present?

-  # Configure public file server for tests with cache-control for performance.
-  config.public_file_server.headers = { "cache-control" => "public, max-age=3600" }
+  # Configure public file server for tests with Cache-Control for performance.
+  config.public_file_server.enabled = true
+  config.public_file_server.headers = {
+    "Cache-Control" => "public, max-age=#{1.hour.to_i}"
+  }

-  # Behave as in `production`.
-  config.consider_all_requests_local = false
+  # Hide full error reports.
+  config.consider_all_requests_local     = false
+  # Render exception templates instead of raising exceptions.
+  config.action_dispatch.show_exceptions = :all

+  # Disable caching.
+  config.action_controller.perform_caching = false
  config.cache_store = :null_store

  # Disable request forgery protection in test environment.
  config.action_controller.allow_forgery_protection = false

+  config.action_mailer.perform_caching = false
+
  # Tell Action Mailer not to deliver emails to the real world.
  # The :test delivery method accumulates sent emails in the
  # ActionMailer::Base.deliveries array.
  config.action_mailer.delivery_method = :test
-
-  # Set host to be used by links generated in mailer templates.
-  config.action_mailer.default_url_options = {host: Capybara.server_host,
-                                              protocol: 'http'}
+  config.action_mailer.default_url_options = {host: '127.0.0.1', :protocol => 'http'}

  # Print deprecation notices to the stderr.
  config.active_support.deprecation = :stderr

+  # Raise exceptions for disallowed deprecations.
+  config.active_support.disallowed_deprecation = :raise
+
+  # Tell Active Support which deprecation messages to disallow.
+  config.active_support.disallowed_deprecation_warnings = []
+
  # Raises error for missing translations.
  config.i18n.raise_on_missing_translations = true

  # Annotate rendered view with file names.
  # config.action_view.annotate_rendered_view_with_filenames = true

-  # Raise error when a before_action's only/except options reference missing actions.
-  config.action_controller.raise_on_missing_callback_actions = true
-
-  # Allow Capybara application server IP
-  config.hosts |= [IPAddr.new(Capybara.server_host)]
-
  config.log_level = :info
+
+  # Allow Capybara's dynamic test server host (127.0.0.1:<random_port>)
+  config.hosts << '127.0.0.1'
 end
--- a/config/initializers/assets.rb
+++ b/config/initializers/assets.rb
@@ -5,3 +5,8 @@ Rails.application.config.assets.version = "1.0"

 # Add additional assets to the asset load path.
 # Rails.application.config.assets.paths << Emoji.images_path
+
+# Precompile additional assets.
+# application.js, application.css, and all non-JS/CSS in the app/assets
+# folder are already added.
+Rails.application.config.assets.precompile += %w( '*.svg' )
--- a/config/initializers/content_security_policy.rb
+++ b/config/initializers/content_security_policy.rb
@@ -16,13 +16,9 @@
 #     # policy.report_uri "/csp-violation-report-endpoint"
 #   end
 #
-#   # Generate session nonces for permitted importmap, inline scripts, and inline styles.
+#   # Generate session nonces for permitted importmap and inline scripts
 #   config.content_security_policy_nonce_generator = ->(request) { request.session.id.to_s }
-#   config.content_security_policy_nonce_directives = %w(script-src style-src)
-#
-#   # Automatically add `nonce` to `javascript_tag`, `javascript_include_tag`, and `stylesheet_link_tag`
-#   # if the corresponding directives are specified in `content_security_policy_nonce_directives`.
-#   # config.content_security_policy_nonce_auto = true
+#   config.content_security_policy_nonce_directives = %w(script-src)
 #
 #   # Report violations without enforcing the policy.
 #   # config.content_security_policy_report_only = true
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -179,7 +179,7 @@ Devise.setup do |config|

  # ==> Configuration for :validatable
  # Range for password length.
-  config.password_length = 5..32
+  config.password_length = 5..128

  # Email regex used to validate email formats. It simply asserts that
  # one (and only one) @ exists in the given string. This is mainly
--- a/config/initializers/filter_parameter_logging.rb
+++ b/config/initializers/filter_parameter_logging.rb
@@ -1,8 +1,8 @@
 # Be sure to restart your server when you modify this file.

-# Configure parameters to be partially matched (e.g. passw matches password) and filtered from the log file.
-# Use this to limit dissemination of sensitive information.
-# See the ActiveSupport::ParameterFilter documentation for supported notations and behaviors.
+# Configure parameters to be filtered from the log file. Use this to limit dissemination of
+# sensitive information. See the ActiveSupport::ParameterFilter documentation for supported
+# notations and behaviors.
 Rails.application.config.filter_parameters += [
-  :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn, :cvv, :cvc
+  :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
 ]
--- a/config/puma.rb.dist
+++ b/config/puma.rb.dist
@@ -1,41 +1,43 @@
-# This configuration file will be evaluated by Puma. The top-level methods that
-# are invoked here are part of Puma's configuration DSL. For more information
-# about methods provided by the DSL, see https://puma.io/puma/Puma/DSL.html.
+# Puma can serve each request in a thread from an internal thread pool.
+# The `threads` method setting takes two numbers: a minimum and maximum.
+# Any libraries that use thread pools should be configured to match
+# the maximum value specified for Puma. Default is set to 5 threads for minimum
+# and maximum; this matches the default thread size of Active Record.
 #
-# Puma starts a configurable number of processes (workers) and each process
-# serves each request in a thread from an internal thread pool.
+max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
+min_threads_count = ENV.fetch("RAILS_MIN_THREADS") { max_threads_count }
+threads min_threads_count, max_threads_count
+
+# Specifies the `worker_timeout` threshold that Puma will use to wait before
+# terminating a worker in development environments.
 #
-# You can control the number of workers using ENV["WEB_CONCURRENCY"]. You
-# should only set this value when you want to run 2 or more workers. The
-# default is already 1.
-#
-# The ideal number of threads per worker depends both on how much time the
-# application spends waiting for IO operations and on how much you wish to
-# prioritize throughput over latency.
-#
-# As a rule of thumb, increasing the number of threads will increase how much
-# traffic a given process can handle (throughput), but due to CRuby's
-# Global VM Lock (GVL) it has diminishing returns and will degrade the
-# response time (latency) of the application.
-#
-# The default is set to 3 threads as it's deemed a decent compromise between
-# throughput and latency for the average Rails application.
-#
-# Any libraries that use a connection pool or another resource pool should
-# be configured to provide at least as many connections as the number of
-# threads. This includes Active Record's `pool` parameter in `database.yml`.
-threads_count = ENV.fetch("RAILS_MAX_THREADS", 3)
-threads threads_count, threads_count
+worker_timeout 3600 if ENV.fetch("RAILS_ENV", "development") == "development"

 # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
-port ENV.fetch("PORT", 3000), '127.0.0.1'
+#
+port ENV.fetch("PORT") { 3000 }
+
+# Specifies the `environment` that Puma will run in.
+#
+environment ENV.fetch("RAILS_ENV") { "development" }
+
+# Specifies the `pidfile` that Puma will use.
+pidfile ENV.fetch("PIDFILE") { "tmp/pids/server.pid" }
+
+# Specifies the number of `workers` to boot in clustered mode.
+# Workers are forked web server processes. If using threads and workers together
+# the concurrency of the application would be max `threads` * `workers`.
+# Workers do not work on JRuby or Windows (both of which do not support
+# processes).
+#
+# workers ENV.fetch("WEB_CONCURRENCY") { 2 }
+
+# Use the `preload_app!` method when specifying a `workers` number.
+# This directive tells Puma to first boot the application and load code
+# before forking the application. This takes advantage of Copy On Write
+# process behavior so workers use less memory.
+#
+# preload_app!

 # Allow puma to be restarted by `bin/rails restart` command.
 plugin :tmp_restart
-
-# Run the Solid Queue supervisor inside of Puma for single-server deployments
-plugin :solid_queue if ENV["SOLID_QUEUE_IN_PUMA"]
-
-# Specify the PID file. Defaults to tmp/pids/server.pid in development.
-# In other environments, only set the PID file if requested.
-pidfile ENV["PIDFILE"] if ENV["PIDFILE"]
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -15,10 +15,7 @@ Rails.application.routes.draw do

  namespace :default do
    resources :units, only: [:index, :destroy] do
-      member {
-        post :import
-        post :export
-      }
+      member { post :import, :export }
      #collection { post :import_all }
    end
  end
--- a/db/migrate/20230309185340_create_users.rb
+++ b/db/migrate/20230309185340_create_users.rb
@@ -1,11 +1,11 @@
-class CreateUsers < ActiveRecord::Migration[8.1]
+class CreateUsers < ActiveRecord::Migration[7.0]
  def change
    create_table :users do |t|
      t.string :email, null: false, limit: 64
      t.integer :status, null: false, default: 0

-      t.timestamps
+      t.timestamps null: false
    end
-    add_index :users, :email
+    add_index :users, :email, unique: true
  end
 end
--- a/db/migrate/20230311220654_add_devise_to_users.rb
+++ b/db/migrate/20230311220654_add_devise_to_users.rb
@@ -1,4 +1,4 @@
-class AddDeviseToUsers < ActiveRecord::Migration[8.1]
+class AddDeviseToUsers < ActiveRecord::Migration[7.0]
  def change
    change_table :users do |t|
      ## NOTE: commented fields left for reference/inclusion in future migrations
@@ -34,8 +34,8 @@ class AddDeviseToUsers < ActiveRecord::Migration[8.1]
      # t.integer :failed_attempts, default: 0, null: false 
    end

-    add_index :users, :reset_password_token
-    add_index :users, :confirmation_token
+    add_index :users, :reset_password_token, unique: true
+    add_index :users, :confirmation_token, unique: true
    # add_index :users, :unlock_token, unique: true
  end
 end
--- a/db/migrate/20230602185352_create_units.rb
+++ b/db/migrate/20230602185352_create_units.rb
@@ -1,15 +1,14 @@
-class CreateUnits < ActiveRecord::Migration[8.1]
+class CreateUnits < ActiveRecord::Migration[7.0]
  def change
    create_table :units do |t|
-      t.references :user, foreign_key: {on_delete: :cascade}
+      t.references :user, foreign_key: true
      t.string :symbol, null: false, limit: 15
      t.text :description
      t.decimal :multiplier, null: false, precision: 30, scale: 15, default: 1.0
      t.references :base, foreign_key: {to_table: :units, on_delete: :cascade}

-      t.timestamps
+      t.timestamps null: false
    end
-    add_index :units, [:user_id, :symbol]
-    add_index :units, [:id, :user_id]
+    add_index :units, [:user_id, :symbol], unique: true
  end
 end
--- a/db/migrate/20250104194343_create_quantities.rb
+++ b/db/migrate/20250104194343_create_quantities.rb
@@ -1,18 +1,17 @@
-class CreateQuantities < ActiveRecord::Migration[8.1]
+class CreateQuantities < ActiveRecord::Migration[7.2]
  def change
    create_table :quantities do |t|
-      t.references :user, foreign_key: {on_delete: :cascade}
+      t.references :user, foreign_key: true
      t.string :name, null: false, limit: 31
      t.text :description
      t.references :parent, foreign_key: {to_table: :quantities, on_delete: :cascade}

-      t.timestamps
+      t.timestamps null: false

      # Caches; can be computed from other attributes
      t.integer :depth, null: false, default: 0
      t.string :pathname, null: false, limit: 511
    end
-    add_index :quantities, [:user_id, :parent_id, :name]
-    add_index :quantities, [:id, :user_id]
+    add_index :quantities, [:user_id, :parent_id, :name], unique: true
  end
 end
--- a/db/migrate/20250121230456_create_readouts.rb
+++ b/db/migrate/20250121230456_create_readouts.rb
@@ -1,69 +1,19 @@
-class CreateReadouts < ActiveRecord::Migration[8.1]
+class CreateReadouts < ActiveRecord::Migration[7.2]
  def change
-    create_table :notes do |t|
-      t.text :text, null: false
-
-      t.timestamps
-    end
-
-    create_table :measurements do |t|
-      t.datetime :taken_at, null: false
-      #t.references :collector, foreign_key: true
-      #t.references :device, foreign_key: true
-      t.references :note, foreign_key: {on_delete: :nullify}
-
-      t.timestamps
-    end
-    add_index :measurements, :taken_at
-
-    # Defining Readouts as a super-/subclass polymorphic relations for different
-    # subclass data types (numeric, string, file) is not possible with proper
-    # referential integrity constraints. The required constraints are:
-    # * for every subclass record to have superclass record,
-    # * for every superclass record to have only one type of subclass record,
-    # * for every superclass record to have subclass record (unenforcable).
-    #   * this can be partially remedied by making superlass an abstract class in
-    #     Rails and disallow direct creation of records, but direct data
-    #     manipulation can still break referential integrity.
-    # Defining separate {Numeric,Text,File}_Readouts tables would make the
-    # unique index constraint unenforcable.
    create_table :readouts do |t|
-      t.references :user, null: false, foreign_key: {on_delete: :cascade}
-      t.references :measurement, foreign_key: {on_delete: :cascade}
-      t.references :quantity, null: false, foreign_key: {on_delete: :cascade}
+      # Reference :user through :quantity (:measurement may be NULL).
+      t.references :measurement, foreign_key: true
+      t.references :quantity, null: false, foreign_key: true
+      # :category + :value + :unit as a separate table? (NumericValue, TextValue)
      t.integer :category, null: false, default: 0
      t.float :value, null: false, limit: Float::MANT_DIG
-      t.references :unit, null: false, foreign_key: {on_delete: :cascade}
-      # TODO: consider additional columns to allow wider range of value types
-      # t.text :text
-      # t.datetime :time
-      # t.references :file
-      # Possibly mutually exclusive with :unit or check constraint for:
-      #   :unit is not null <=> :value is not null
+      t.references :unit, foreign_key: true
+      # Move to Measurement?
+      #t.references :collector, foreign_key: true
+      #t.references :device, foreign_key: true

-      t.timestamps
+      t.timestamps null: false
    end
-    add_index :readouts, [:measurement_id, :quantity_id, :category]
-    add_foreign_key :readouts, :quantities, column: [:quantity_id, :user_id],
-      primary_key: [:id, :user_id]
-    add_foreign_key :readouts, :units, column: [:unit_id, :user_id],
-      primary_key: [:id, :user_id]
-
-    # TODO: remove below tables after current setup verified
-    #create_table :numeric_values do |t|
-    #  t.references :readout, null: false, foreign_key: {on_delete: :cascade}
-    #  t.float :value, null: false, limit: Float::MANT_DIG
-    #  t.references :unit, null: false, foreign_key: {on_delete: :cascade}
-    #  # + generated, not stored column :value_type
-    #  # + foreign key constraint to readouts: [:readout_id, :value_id, :value_type]
-    #  # or 2 constraints: [:readout_id, :value_id], [:value_id, :value_type]
-    #  # if readouts.value_id needed, otherwise just one constraint:
-    #  # [:readout_id, :value_type]
-    #end
-
-    #create_table :string_values do |t|
-    #  t.references :readout, null: false, foreign_key: {on_delete: :cascade}
-    #  t.string :value, null: false, limit: 32
-    #end
+    add_index :readouts, [:quantity_id, :created_at], unique: true
  end
 end
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,22 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.

-ActiveRecord::Schema[8.1].define(version: 2025_01_21_230456) do
-  create_table "measurements", charset: "utf8mb4", collation: "utf8mb4_0900_as_ci", force: :cascade do |t|
-    t.datetime "taken_at", null: false
-    t.bigint "note_id"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["note_id"], name: "index_measurements_on_note_id"
-    t.index ["taken_at"], name: "index_measurements_on_taken_at", unique: true
-  end
-
-  create_table "notes", charset: "utf8mb4", collation: "utf8mb4_0900_as_ci", force: :cascade do |t|
-    t.text "text", null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-  end
-
+ActiveRecord::Schema[7.2].define(version: 2025_01_21_230456) do
  create_table "quantities", charset: "utf8mb4", collation: "utf8mb4_0900_as_ci", force: :cascade do |t|
    t.bigint "user_id"
    t.string "name", limit: 31, null: false
@@ -35,7 +20,6 @@ ActiveRecord::Schema[8.1].define(version: 2025_01_21_230456) do
    t.datetime "updated_at", null: false
    t.integer "depth", default: 0, null: false
    t.string "pathname", limit: 511, null: false
-    t.index ["id", "user_id"], name: "index_quantities_on_id_and_user_id", unique: true
    t.index ["parent_id"], name: "index_quantities_on_parent_id"
    t.index ["user_id", "parent_id", "name"], name: "index_quantities_on_user_id_and_parent_id_and_name", unique: true
    t.index ["user_id"], name: "index_quantities_on_user_id"
@@ -43,18 +27,13 @@ ActiveRecord::Schema[8.1].define(version: 2025_01_21_230456) do

  create_table "readouts", charset: "utf8mb4", collation: "utf8mb4_0900_as_ci", force: :cascade do |t|
    t.bigint "user_id", null: false
-    t.bigint "measurement_id"
    t.bigint "quantity_id", null: false
-    t.integer "category", default: 0, null: false
-    t.float "value", limit: 53, null: false
-    t.bigint "unit_id", null: false
+    t.bigint "unit_id"
+    t.decimal "value", precision: 30, scale: 15, null: false
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
-    t.index ["measurement_id", "quantity_id", "category"], name: "index_readouts_on_measurement_id_and_quantity_id_and_category", unique: true
-    t.index ["measurement_id"], name: "index_readouts_on_measurement_id"
-    t.index ["quantity_id", "user_id"], name: "fk_rails_9d92eaafc6"
+    t.index ["quantity_id", "created_at"], name: "index_readouts_on_quantity_id_and_created_at", unique: true
    t.index ["quantity_id"], name: "index_readouts_on_quantity_id"
-    t.index ["unit_id", "user_id"], name: "fk_rails_348b0fb4c5"
    t.index ["unit_id"], name: "index_readouts_on_unit_id"
    t.index ["user_id"], name: "index_readouts_on_user_id"
  end
@@ -68,7 +47,6 @@ ActiveRecord::Schema[8.1].define(version: 2025_01_21_230456) do
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.index ["base_id"], name: "index_units_on_base_id"
-    t.index ["id", "user_id"], name: "index_units_on_id_and_user_id", unique: true
    t.index ["user_id", "symbol"], name: "index_units_on_user_id_and_symbol", unique: true
    t.index ["user_id"], name: "index_units_on_user_id"
  end
@@ -91,15 +69,11 @@ ActiveRecord::Schema[8.1].define(version: 2025_01_21_230456) do
    t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
  end

-  add_foreign_key "measurements", "notes", on_delete: :nullify
  add_foreign_key "quantities", "quantities", column: "parent_id", on_delete: :cascade
-  add_foreign_key "quantities", "users", on_delete: :cascade
-  add_foreign_key "readouts", "measurements", on_delete: :cascade
-  add_foreign_key "readouts", "quantities", column: ["quantity_id", "user_id"], primary_key: ["id", "user_id"]
-  add_foreign_key "readouts", "quantities", on_delete: :cascade
-  add_foreign_key "readouts", "units", column: ["unit_id", "user_id"], primary_key: ["id", "user_id"]
-  add_foreign_key "readouts", "units", on_delete: :cascade
-  add_foreign_key "readouts", "users", on_delete: :cascade
+  add_foreign_key "quantities", "users"
+  add_foreign_key "readouts", "quantities"
+  add_foreign_key "readouts", "units"
+  add_foreign_key "readouts", "users"
  add_foreign_key "units", "units", column: "base_id", on_delete: :cascade
-  add_foreign_key "units", "users", on_delete: :cascade
+  add_foreign_key "units", "users"
 end
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -7,21 +7,17 @@
 User.transaction do
  break if User.find_by status: :admin

-  email = Rails.configuration.admin
-  password_length = SecureRandom.rand(Rails.configuration.devise.password_length)
-  password = SecureRandom.alphanumeric(password_length)
-
-  User.create!(email: email, password: password, status: :admin) do |user|
+  User.create! email: Rails.configuration.admin, password: 'admin', status: :admin do |user|
    user.skip_confirmation!
-    print "Creating #{user.status} account '#{user.email}'" \
-      " with password '#{user.password}'..."
+    print "Creating #{user.status} account '#{user.email}' with password '#{user.password}'..."
  end
  puts "done."
+
 rescue ActiveRecord::RecordInvalid => exception
-  puts "failed.", exception.message
+  puts "failed. #{exception.message}"
 end

 # Formulas will be deleted as dependent on Quantities
 #[Source, Quantity, Unit].each { |model| model.defaults.delete_all }

-load "db/seeds/units.rb"
+require_relative 'seeds/units.rb'
--- a/db/sqlite3_schema.rb
+++ b/db/sqlite3_schema.rb
@@ -1,103 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema[8.1].define(version: 2025_01_21_230456) do
-  create_table "measurements", force: :cascade do |t|
-    t.datetime "taken_at", null: false
-    t.integer "note_id"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["note_id"], name: "index_measurements_on_note_id"
-    t.index ["taken_at"], name: "index_measurements_on_taken_at", unique: true
-  end
-
-  create_table "notes", force: :cascade do |t|
-    t.text "text", limit: 65535, null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-  end
-
-  create_table "quantities", force: :cascade do |t|
-    t.integer "user_id"
-    t.string "name", limit: 31, null: false
-    t.text "description", limit: 65535
-    t.integer "parent_id"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.integer "depth", default: 0, null: false
-    t.string "pathname", limit: 511, null: false
-    t.index ["id", "user_id"], name: "index_quantities_on_id_and_user_id", unique: true
-    t.index ["parent_id"], name: "index_quantities_on_parent_id"
-    t.index ["user_id", "parent_id", "name"], name: "index_quantities_on_user_id_and_parent_id_and_name", unique: true
-    t.index ["user_id"], name: "index_quantities_on_user_id"
-  end
-
-  create_table "readouts", force: :cascade do |t|
-    t.integer "user_id", null: false
-    t.integer "measurement_id"
-    t.integer "quantity_id", null: false
-    t.integer "category", default: 0, null: false
-    t.float "value", limit: 53, null: false
-    t.integer "unit_id", null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["measurement_id", "quantity_id", "category"], name: "index_readouts_on_measurement_id_and_quantity_id_and_category", unique: true
-    t.index ["measurement_id"], name: "index_readouts_on_measurement_id"
-    t.index ["quantity_id"], name: "index_readouts_on_quantity_id"
-    t.index ["unit_id"], name: "index_readouts_on_unit_id"
-    t.index ["user_id"], name: "index_readouts_on_user_id"
-  end
-
-  create_table "units", force: :cascade do |t|
-    t.integer "user_id"
-    t.string "symbol", limit: 15, null: false
-    t.text "description", limit: 65535
-    t.decimal "multiplier", precision: 30, scale: 15, default: "1.0", null: false
-    t.integer "base_id"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["base_id"], name: "index_units_on_base_id"
-    t.index ["id", "user_id"], name: "index_units_on_id_and_user_id", unique: true
-    t.index ["user_id", "symbol"], name: "index_units_on_user_id_and_symbol", unique: true
-    t.index ["user_id"], name: "index_units_on_user_id"
-  end
-
-  create_table "users", force: :cascade do |t|
-    t.string "email", limit: 64, null: false
-    t.integer "status", default: 0, null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.string "encrypted_password", default: "", null: false
-    t.string "reset_password_token"
-    t.datetime "reset_password_sent_at"
-    t.datetime "remember_created_at"
-    t.string "confirmation_token"
-    t.datetime "confirmed_at"
-    t.datetime "confirmation_sent_at"
-    t.string "unconfirmed_email", limit: 64
-    t.index ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true
-    t.index ["email"], name: "index_users_on_email", unique: true
-    t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
-  end
-
-  add_foreign_key "measurements", "notes", on_delete: :nullify
-  add_foreign_key "quantities", "quantities", column: "parent_id", on_delete: :cascade
-  add_foreign_key "quantities", "users", on_delete: :cascade
-  add_foreign_key "readouts", "measurements", on_delete: :cascade
-  add_foreign_key "readouts", "quantities", column: ["quantity_id", "user_id"], primary_key: ["id", "user_id"]
-  add_foreign_key "readouts", "quantities", on_delete: :cascade
-  add_foreign_key "readouts", "units", column: ["unit_id", "user_id"], primary_key: ["id", "user_id"]
-  add_foreign_key "readouts", "units", on_delete: :cascade
-  add_foreign_key "readouts", "users", on_delete: :cascade
-  add_foreign_key "units", "units", column: "base_id", on_delete: :cascade
-  add_foreign_key "units", "users", on_delete: :cascade
-end
--- a/lib/default_settings_strategy.rb
+++ b/lib/default_settings_strategy.rb
@@ -1,55 +0,0 @@
-class DefaultSettingsStrategy < ActiveRecord::Migration::DefaultStrategy
-  COLUMN_DEFAULTS = {
-    # TODO: all types `null: false` ?
-    # TODO: references `foreign_key: {on_delete: :cascade}` ?
-    # `timestamps` - Rails defaults to `null: false, precision: true`.
-    # `limit:` for `text` - `text` can be theoretically up to 1GB or
-    #   longer, so roughly unlimited for practical purposes. But:
-    #   * the actual usable length depends on additional factors, like compile
-    #     time limits (`SQLITE_MAX_LENGTH` in SQLite), runtime settings
-    #     (`max_allowed_packet` in MySQL) and probably other,
-    #   * Rails does not report limit for `text` column types, unless it is
-    #     explicitly set.
-    #   The decision is to always set safe limit and enforce it by validations, to
-    #   avoid surprises (e.g. text truncation) when saving to dabatase.
-    text: {limit: 2**16 - 1}
-  }
-  COLUMN_DEFAULTS.default = {}
-  COLUMN_DEFAULTS.freeze
-
-  module ColumnSettingsStrategy
-    def column(name, type, **options)
-      super(name, type, **COLUMN_DEFAULTS[type].merge(options))
-    end
-  end
-  ActiveRecord::ConnectionAdapters::TableDefinition.prepend ColumnSettingsStrategy
-
-  # `force: :cascade` - does nothing on MySQL, so `force:` is useless.
-  # `if_not_exists: true`/`if_exists: true` - without these options it's impossible
-  #   to change migration status once migration fails partially. If `up` migration
-  #   creates some, but not all objects, its status is not updated from `down` to
-  #   `up`. Then it's impossible to migrate: a) up - due to `already exists`
-  #   errors and b) down - due to migration status.
-  MIGRATION_DEFAULTS = {
-    add_check_constraint: {if_not_exists: true},
-    add_column:           {if_not_exists: true},
-    add_foreign_key:      {if_not_exists: true},
-    add_index:            {if_not_exists: true, unique: true},
-    add_timestamps:       {if_not_exists: true},
-    create_table:         {if_not_exists: true},
-    drop_table:               {if_exists: true},
-    remove_check_constraint:  {if_exists: true},
-    remove_column:            {if_exists: true},
-    remove_foreign_key:       {if_exists: true},
-    remove_index:             {if_exists: true},
-    remove_timestamps:        {if_exists: true},
-  }
-  MIGRATION_DEFAULTS.default = {}
-  MIGRATION_DEFAULTS.freeze
-
-  def method_missing(method, *args, **kwargs, &)
-    conflicts = kwargs.has_key?(:force) ? [:if_not_exists, :if_exists] : []
-    defaults = MIGRATION_DEFAULTS[method.to_sym].except(*conflicts)
-    super(method, *args, **defaults.merge(kwargs), &)
-  end
-end
--- a/public/icon.png
+++ b/public/icon.png
--- a/public/icon.svg
+++ b/public/icon.svg
@@ -1,3 +0,0 @@
-<svg width="512" height="512" xmlns="http://www.w3.org/2000/svg">
-  <circle cx="256" cy="256" r="256" fill="red"/>
-</svg>
--- a/test/application_system_test_case.rb
+++ b/test/application_system_test_case.rb
@@ -25,10 +25,9 @@ class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
    user
  end

-  def inject_button_to(inside, *button_options)
+  def inject_button_to(after, *button_options)
    button = button_to *button_options
-    inside.evaluate_script("this.insertAdjacentHTML('beforeend', arguments[0]);",
-                           button.html_safe)
+    evaluate_script("arguments[0].insertAdjacentHTML('beforeend', '#{button.html_safe}');", after)
  end

  # Allow skipping interpolations when translating for testing purposes
@@ -39,32 +38,6 @@ class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
  end
  alias :t :translate

-  DB_CONFIGS = ActiveRecord::Base.configurations.configs_for(env_name: "test")
-  TEST_CONFIGS = Hash.new(DB_CONFIGS.first.name.to_sym)
-  class << self
-    # NOTE: alternative to current solution is to create shards:
-    #   ActiveRecord::Base.connects_to(
-    #     shards: {mysql2: {writing: :mysql2}, sqlite3: {writing: :sqlite3}}
-    #   )
-    # and use them in one of the following ways:
-    # * set config.active_record.shard_selector/shard_resolver
-    # * run tests within: ActiveRecord::Base.connected_to(shard: :sqlite3) { test_ }
-    # Remove this note once current solution is confirmed to work.
-    #
-    # Test block should not be modified here, as it would change its binding from
-    # instance level to class level.
-    if DB_CONFIGS.many?
-      def test(name, ...)
-        DB_CONFIGS.each do |config|
-          TEST_CONFIGS[super("#{config.name} #{name}", ...)] = config.name.to_sym
-        end
-      end
-    end
-  end
-  setup do
-    ActiveRecord::Base.establish_connection(TEST_CONFIGS[name.to_sym])
-  end
-
  #def assert_stale(element)
  #  assert_raises(Selenium::WebDriver::Error::StaleElementReferenceError) { element.tag_name }
  #end
--- a/test/controllers/measurements_controller_test.rb
+++ b/test/controllers/measurements_controller_test.rb
@@ -0,0 +1,8 @@
+require "test_helper"
+
+class MeasurementsControllerTest < ActionDispatch::IntegrationTest
+  #test "should get index" do
+  #  get measurements_index_url
+  #  assert_response :success
+  #end
+end
--- a/test/controllers/quantities_controller_test.rb
+++ b/test/controllers/quantities_controller_test.rb
@@ -0,0 +1,7 @@
+require "test_helper"
+
+class QuantitiesControllerTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+end
--- a/test/controllers/units_controller_test.rb
+++ b/test/controllers/units_controller_test.rb
@@ -0,0 +1,7 @@
+require "test_helper"
+
+class UnitsControllerTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+end
--- a/test/controllers/users_controller_test.rb
+++ b/test/controllers/users_controller_test.rb
@@ -1,7 +1,5 @@
 require "test_helper"

-# TODO: make sure tested actions are covered by system tests and remove all
-# controller tests.
 class UsersControllerTest < ActionDispatch::IntegrationTest
  setup do
    @user = users(:one)
--- a/test/models/user_test.rb
+++ b/test/models/user_test.rb
@@ -0,0 +1,7 @@
+require "test_helper"
+
+class UserTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end
--- a/test/system/tasks_test.rb
+++ b/test/system/tasks_test.rb
@@ -1,20 +0,0 @@
-require 'application_system_test_case'
-
-Rails.application.load_tasks
-# NOTE: for some reason task for checking pending migrations messes up
-# transaction when run during test. It causes all DB changes made before its
-# execution to be rolled back.
-# Run it before tests, so any rake task dependent on it will see it as
-# #already_invoked and won't run it during test. It is redundant anyway, as
-# migrations are run before starting test suite.
-Rake::Task['db:abort_if_pending_migrations'].invoke
-
-class TasksTest < ApplicationSystemTestCase
-  test "db:seed creates admin account" do
-    User.admin.delete_all
-    assert_output /Creating admin account/ do
-      Rake::Task['db:seed'].execute
-    end
-    assert User.admin.exists?
-  end
-end
--- a/test/system/units_test.rb
+++ b/test/system/units_test.rb
@@ -44,12 +44,10 @@ class UnitsTest < ApplicationSystemTestCase
    within 'tbody > tr:has(input[type=text], textarea)' do
      assert_selector ':focus'

-      maxlength = all(:fillable_field).to_h do |field|
-        [field[:name], field[:maxlength].to_i || 2**16]
-      end
+      maxlength = all(:fillable_field).to_h { |f| [f[:name], f[:maxlength].to_i || 2**16] }
      values = {
-        symbol: random_string(deep_rand(1..3, 4..maxlength['unit[symbol]']),
-                              except: units.map(&:symbol), allow_blank: false),
+        symbol: random_string(rand([1..3, 4..maxlength['unit[symbol]']].sample),
+                              except: units.map(&:symbol)),
        description: random_string(rand(0..maxlength['unit[description]']))
      }.with_indifferent_access
      within :field, 'unit[multiplier]' do |field|
@@ -63,8 +61,7 @@ class UnitsTest < ApplicationSystemTestCase
      end
    end

-    assert_selector '.flash.notice',
-      text: t('units.create.success', unit: Unit.last.symbol)
+    assert_selector '.flash.notice', text: t('units.create.success', unit: Unit.last.symbol)
    within 'tbody' do
      assert_no_selector :fillable_field
      assert_selector 'tr', count: @user.units.count
--- a/test/system/users_test.rb
+++ b/test/system/users_test.rb
@@ -204,7 +204,6 @@ class UsersTest < ApplicationSystemTestCase

  test 'update profile' do
    # TODO
-    assert true
  end

  test 'update status' do
@@ -228,8 +227,7 @@ class UsersTest < ApplicationSystemTestCase

    within all(:xpath, "//tbody//tr[not(descendant::select)]").sample do |tr|
      user = User.find_by_email!(first(:link).text)
-      inject_button_to find('td', exact_text: user.status), "update status",
-        user_path(user), method: :patch,
+      inject_button_to first('td:not(.link)'), "update status", user_path(user), method: :patch,
        params: {user: {status: User.statuses.keys.sample}}, data: {turbo: false}
      click_on "update status"
    end
@@ -239,8 +237,8 @@ class UsersTest < ApplicationSystemTestCase
  test 'update status forbidden for non admin' do
    sign_in user: users.reject(&:admin?).select(&:confirmed?).sample
    visit units_path
-    inject_button_to find('body'), "update status", user_path(User.all.sample),
-      method: :patch, params: {user: {status: User.statuses.keys.sample}}
+    inject_button_to find('body'), "update status", user_path(User.all.sample), method: :patch,
+      params: {user: {status: User.statuses.keys.sample}}
    click_on "update status"
    assert_text t('actioncontroller.exceptions.status.forbidden')
  end
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -13,36 +13,27 @@ class ActiveSupport::TestCase
  include ActionView::Helpers::TranslationHelper

  # List of categorized Unicode characters:
-  #   * source: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
-  #   * file format: http://www.unicode.org/L2/L1999/UnicodeData.html
-  #   * select from graphic ranges: L, M, N, P, S, Zs
-  UNICODE_CHARS = [
-    *"\u0020".."\u007E",
-    *"\u00A0".."\u00AC",
-    *"\u00AE".."\u05FF",
-    *"\u0606".."\u061B",
-    *"\u061D".."\u06DC",
-    *"\u06DE".."\u070E",
-    *"\u0710".."\u07FF"
-  ]
-  def random_string(length, except: [], allow_blank: true)
+  # * http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
+  # File format: http://www.unicode.org/L2/L1999/UnicodeData.html
+  # Select from graphic ranges: L, M, N, P, S, Zs
+  UNICODE_CHARS = {
+    1 => [*"\u0020".."\u007E"],
+    2 => [*"\u00A0".."\u00AC",
+          *"\u00AE".."\u05FF",
+          *"\u0606".."\u061B",
+          *"\u061D".."\u06DC",
+          *"\u06DE".."\u070E",
+          *"\u0710".."\u07FF"]
+  }
+  UNICODE_CHARS.default = UNICODE_CHARS[1] + UNICODE_CHARS[2]
+  def random_string(bytes = 10, except: [])
    begin
-      result = UNICODE_CHARS.sample(length).join
-    end while except.include?(result) || (!allow_blank && result.blank?)
+      result = ''
+      result += UNICODE_CHARS[bytes - result.bytesize].sample while bytes > result.bytesize
+    end while except.include?(result)
    result
  end

-  def deep_rand(*args)
-    case args
-    when Array
-      args = args.sample
-    when Range
-      args = rand(args)
-    else
-      return args
-    end while true
-  end
-
  # Assumes: max >= step and step = 1e[-]N, both as strings
  def random_number(max, step)
    max.delete!('.')
Author	SHA1	Message	Date
barbie-bot	c5331f41c7	Allow Capybara test server host in HostAuthorization Capybara starts a Puma server on 127.0.0.1:<random_port> for system tests. Rails HostAuthorization was blocking all requests from that host since it was not in the config.hosts allowlist, causing every page to return a blank 403 response and all system tests to fail. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-04-02 19:10:23 +00:00
cryptogopher	d893e59293	Clean up and improve items-table styling Closes #9	2026-03-25 18:42:24 +01:00
cryptogopher	33004f62bd	Improve Measurement form layout and styling	2026-03-22 01:06:38 +01:00
cryptogopher	687e6fcdff	Drop Readout.value decimal type in favor of float	2026-03-19 20:30:16 +01:00