From 8240e5e8684ae2612f53b0890fa797655927b62e Mon Sep 17 00:00:00 2001
From: cryptogopher <git6453hub@michalczyk.pro>
Date: Sun, 21 Jun 2020 02:48:32 +0200
Subject: [PATCH] Added Target and Threshold models

---
 app/models/target.rb            | 14 ++++++++++++++
 app/models/threshold.rb         |  6 ++++++
 db/migrate/001_create_schema.rb |  2 +-
 3 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 app/models/target.rb
 create mode 100644 app/models/threshold.rb

diff --git a/app/models/target.rb b/app/models/target.rb
new file mode 100644
index 0000000..96d273f
--- /dev/null
+++ b/app/models/target.rb
@@ -0,0 +1,14 @@
+class Target < ActiveRecord::Base
+  belongs_to :goal, inverse_of: :targets
+  belongs_to :item, polymorphic: true, inverse_of: :targets
+  has_many :thresholds, as: :registry, inverse_of: :target, dependent: :destroy,
+    validate: true
+
+  validates :thresholds, presence: true
+  accepts_nested_attributes_for :thresholds, allow_destroy: true,
+    reject_if: proc { |attrs| attrs['quantity_id'].blank? && attrs['value'].blank? }
+  # TODO: validate thresholds count according to condition type
+  validates :condition, inclusion: {in: [:<, :<=, :>, :>=, :==]}
+  validates :scope, inclusion: {in: [:day], if: -> { thresholds.first.domain == :diet }}
+  validates :effective_from, presence: {unless: goal?}, absence: {if: goal?}
+end
diff --git a/app/models/threshold.rb b/app/models/threshold.rb
new file mode 100644
index 0000000..54f6ad1
--- /dev/null
+++ b/app/models/threshold.rb
@@ -0,0 +1,6 @@
+class Threshold < QuantityValue
+  belongs_to :target, foreign_key: 'registry_id', foreign_type: 'foreign_type',
+    inverse_of: :thresholds, polymorphic: true, required: true
+
+  validates :value, numericality: true
+end
diff --git a/db/migrate/001_create_schema.rb b/db/migrate/001_create_schema.rb
index 19c6a2b..170492f 100644
--- a/db/migrate/001_create_schema.rb
+++ b/db/migrate/001_create_schema.rb
@@ -95,7 +95,7 @@ class CreateSchema < ActiveRecord::Migration
 
     create_table :targets do |t|
       t.references :goal
-      t.references :threshold
+      t.references :item, polymorphic: true
       t.string :condition
       t.string :scope
       t.date :effective_from