initial commit

app/models/subproject.rb

@@ -0,0 +1,53 @@
+class Subproject < ApplicationRecord
+  belongs_to :project
+
+  belongs_to :client, class_name: 'Client', optional: true
+  belongs_to :owner, class_name: 'Client', optional: true
+  belongs_to :builder, class_name: 'Client', optional: true
+
+  accepts_nested_attributes_for :client, reject_if: :all_blank
+  accepts_nested_attributes_for :owner, reject_if: :all_blank
+  accepts_nested_attributes_for :builder, reject_if: :all_blank
+
+  validates :subproject_name, presence: true
+  validate :client_presence_check
+  validate :owner_presence_check
+  validate :builder_presence_check
+
+  private
+  private
+
+  def client_presence_check
+    if client_id.blank? && (client_attributes_blank?)
+      errors.add(:client, "must be selected or a new client must be provided")
+    end
+  end
+
+  def owner_presence_check
+    if owner_id.blank? && (owner_attributes_blank?)
+      errors.add(:owner, "must be selected or a new owner must be provided")
+    end
+  end
+
+  def builder_presence_check
+    if builder_id.blank? && (builder_attributes_blank?)
+      errors.add(:builder, "must be selected or a new builder must be provided")
+    end
+  end
+
+  def client_attributes_blank?
+    return true if client.nil?
+    client.attributes.except("id", "created_at", "updated_at").values.all?(&:blank?)
+  end
+
+  def owner_attributes_blank?
+    return true if client.nil?
+    owner_attributes.except("id", "created_at", "updated_at").values.all?(&:blank?)
+  end
+
+  def builder_attributes_blank?
+    return true if client.nil?
+    builder_attributes.except("id", "created_at", "updated_at").values.all?(&:blank?)
+  end
+
+end