From 8f691b566ffbc79f1d2d7a3f67d8607cc03a789c Mon Sep 17 00:00:00 2001
From: hellekin <hellekin@cepheide.org>
Date: Thu, 8 Oct 2020 16:51:30 +0200
Subject: Add model foundation for classifications

Taxonomy > Category > Section

This commit adds models for it.

https://doc.incommon.cc/#classifications
---
 Gemfile                                        |  2 ++
 Gemfile.lock                                   |  6 ++++
 app/models/category.rb                         | 14 ++++++++
 app/models/section.rb                          | 10 ++++++
 app/models/taxonomy.rb                         | 17 ++++++++++
 db/migrate/20201008132251_create_taxonomies.rb | 16 ++++++++++
 db/migrate/20201008132731_create_categories.rb | 15 +++++++++
 db/migrate/20201008133300_create_sections.rb   | 14 ++++++++
 db/schema.rb                                   | 44 +++++++++++++++++++++++++-
 db/seeds.rb                                    | 10 ++++++
 10 files changed, 147 insertions(+), 1 deletion(-)
 create mode 100644 app/models/category.rb
 create mode 100644 app/models/section.rb
 create mode 100644 app/models/taxonomy.rb
 create mode 100644 db/migrate/20201008132251_create_taxonomies.rb
 create mode 100644 db/migrate/20201008132731_create_categories.rb
 create mode 100644 db/migrate/20201008133300_create_sections.rb

diff --git a/Gemfile b/Gemfile
index 5cc080e..e11ac05 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,6 +24,8 @@ gem 'jbuilder', '~> 2.7'
 # Use Active Storage variant
 # gem 'image_processing', '~> 1.2'
 
+# Use acts_as_list for taxonomies
+gem 'acts_as_list'
 # Use bitfields in models
 gem 'bitfields'
 # Use Discourse API
diff --git a/Gemfile.lock b/Gemfile.lock
index 6b28c92..96d66e2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,6 +56,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
+    acts_as_list (1.0.2)
+      activerecord (>= 4.2)
     bindex (0.8.1)
     bitfields (0.14.0)
       activerecord (>= 5.1)
@@ -95,6 +97,8 @@ GEM
       activerecord
       kaminari-core (= 1.2.1)
     kaminari-core (1.2.1)
+    leaflet-rails (1.7.0)
+      rails (>= 4.2.0)
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -210,12 +214,14 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  acts_as_list
   bitfields
   bootsnap (>= 1.4.2)
   byebug
   discourse_api
   jbuilder (~> 2.7)
   kaminari
+  leaflet-rails
   listen (~> 3.2)
   pg (>= 0.18, < 2.0)
   pry
diff --git a/app/models/category.rb b/app/models/category.rb
new file mode 100644
index 0000000..b8c49f1
--- /dev/null
+++ b/app/models/category.rb
@@ -0,0 +1,14 @@
+class Category < ApplicationRecord
+  belongs_to :taxonomy
+  has_many :sections,
+           -> { order(rank: :asc) },
+           dependent: :destroy,
+           inverse_of: :category
+
+  acts_as_list column: :rank, scope: :taxonomy
+
+  validates :name,
+            presence: true,
+            uniqueness: { scope: :taxonomy_id },
+            length: 3..64
+end
diff --git a/app/models/section.rb b/app/models/section.rb
new file mode 100644
index 0000000..a9d163e
--- /dev/null
+++ b/app/models/section.rb
@@ -0,0 +1,10 @@
+class Section < ApplicationRecord
+  belongs_to :category
+  has_ony :taxonomy, through: :category
+
+  acts_as_list column: :rank, scope: :category
+
+  validates :name,
+            uniqueness: { scope: category_id },
+            length: 3..64
+end
diff --git a/app/models/taxonomy.rb b/app/models/taxonomy.rb
new file mode 100644
index 0000000..0810fc0
--- /dev/null
+++ b/app/models/taxonomy.rb
@@ -0,0 +1,17 @@
+class Taxonomy < ApplicationRecord
+  # Universally Unique Identifier :uuid
+  include UUIDParameter
+
+  default_scope { order(created_at: :asc) }
+
+  belongs_to :agent
+  has_many :categories, -> { order(rank: :asc) }, dependent: :destroy, inverse_of: :taxonomy
+  has_many :sections, -> { order(rank: :asv) }, through: :categories
+
+  validates :name,
+            presence: true,
+            uniqueness: true,
+            length: 3..64
+  validates :summary,
+            length: 0..136
+end
diff --git a/db/migrate/20201008132251_create_taxonomies.rb b/db/migrate/20201008132251_create_taxonomies.rb
new file mode 100644
index 0000000..8c746b1
--- /dev/null
+++ b/db/migrate/20201008132251_create_taxonomies.rb
@@ -0,0 +1,16 @@
+class CreateTaxonomies < ActiveRecord::Migration[6.0]
+  def change
+    create_table :taxonomies do |t|
+      t.string :name, limit: 64
+      t.string :summary, limit: 64
+      t.text :description
+      t.uuid :uuid
+      t.integer :categories_count, default: 0
+      t.references :agent, null: false, foreign_key: true
+
+      t.timestamps
+    end
+    add_index :taxonomies, :name, unique: true
+    add_index :taxonomies, :uuid, unique: true
+  end
+end
diff --git a/db/migrate/20201008132731_create_categories.rb b/db/migrate/20201008132731_create_categories.rb
new file mode 100644
index 0000000..eb5a6fa
--- /dev/null
+++ b/db/migrate/20201008132731_create_categories.rb
@@ -0,0 +1,15 @@
+class CreateCategories < ActiveRecord::Migration[6.0]
+  def change
+    create_table :categories do |t|
+      t.string :name, limit: 64
+      t.string :summary, limit: 136
+      t.text :description
+      t.references :taxonomy, null: false, foreign_key: true
+      t.string :color, limit: 25
+      t.integer :rank
+      t.integer :sections_count, default: 0
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20201008133300_create_sections.rb b/db/migrate/20201008133300_create_sections.rb
new file mode 100644
index 0000000..c71c055
--- /dev/null
+++ b/db/migrate/20201008133300_create_sections.rb
@@ -0,0 +1,14 @@
+class CreateSections < ActiveRecord::Migration[6.0]
+  def change
+    create_table :sections do |t|
+      t.string :name, limit: 64
+      t.string :summary, limit: 136
+      t.text :description
+      t.references :category, null: false, foreign_key: true
+      t.string :color, limit: 25
+      t.integer :rank, default: 0
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index fbd0924..5a8bba7 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_10_06_140511) do
+ActiveRecord::Schema.define(version: 2020_10_08_133300) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -35,6 +35,19 @@ ActiveRecord::Schema.define(version: 2020_10_06_140511) do
     t.index ["uuid"], name: "index_agents_on_uuid", unique: true
   end
 
+  create_table "categories", force: :cascade do |t|
+    t.string "name", limit: 64
+    t.string "summary", limit: 136
+    t.text "description"
+    t.bigint "taxonomy_id", null: false
+    t.string "color", limit: 25
+    t.integer "rank"
+    t.integer "sections_count", default: 0
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["taxonomy_id"], name: "index_categories_on_taxonomy_id"
+  end
+
   create_table "resources", force: :cascade do |t|
     t.uuid "uuid"
     t.jsonb "feature"
@@ -45,6 +58,32 @@ ActiveRecord::Schema.define(version: 2020_10_06_140511) do
     t.index ["uuid"], name: "index_resources_on_uuid", unique: true
   end
 
+  create_table "sections", force: :cascade do |t|
+    t.string "name", limit: 64
+    t.string "summary", limit: 136
+    t.text "description"
+    t.bigint "category_id", null: false
+    t.string "color", limit: 25
+    t.integer "rank", default: 0
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["category_id"], name: "index_sections_on_category_id"
+  end
+
+  create_table "taxonomies", force: :cascade do |t|
+    t.string "name", limit: 64
+    t.string "summary", limit: 64
+    t.text "description"
+    t.uuid "uuid"
+    t.integer "categories_count", default: 0
+    t.bigint "agent_id", null: false
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["agent_id"], name: "index_taxonomies_on_agent_id"
+    t.index ["name"], name: "index_taxonomies_on_name", unique: true
+    t.index ["uuid"], name: "index_taxonomies_on_uuid", unique: true
+  end
+
   create_table "users", force: :cascade do |t|
     t.string "name"
     t.string "username"
@@ -59,5 +98,8 @@ ActiveRecord::Schema.define(version: 2020_10_06_140511) do
 
   add_foreign_key "agencies", "agents"
   add_foreign_key "agencies", "users"
+  add_foreign_key "categories", "taxonomies"
   add_foreign_key "resources", "agents"
+  add_foreign_key "sections", "categories"
+  add_foreign_key "taxonomies", "agents"
 end
diff --git a/db/seeds.rb b/db/seeds.rb
index 3ee3a11..8a4c670 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -16,3 +16,13 @@
   Agent.find_or_create_by(name: agent_name, uuid: uuid)
 end
 
+dewey = Agent.find_by(uuid: '6347f151-6782-437c-8bae-55730672a76f') or die('Dewey Agent should be available by now!')
+
+# Create a default taxonomy
+Taxonomy.find_or_create_by(
+  name: 'Dewey Maps Taxonomy',
+  summary: 'Original taxonomy used in Belgique, Mode d\'Emploi',
+  description: '## Dewey Maps Taxonomy',
+  uuid: '2519915f-d19c-4281-b758-f5ddb889d7fa',
+  agent_id: dewey.id
+)
-- 
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