StaticRecord のモデルをツリーにする例を追加

Author: akicho8

examples/0240_static_record.rb

@@ -0,0 +1,34 @@
+# StaticRecord を Treeable 対応
+require "bundler/setup"
+require "tree_support"
+require "static_record"
+
+class Foo
+  include StaticRecord
+  static_record [
+    {:key => :a, :name => "A", :parent => nil},
+    {:key => :b, :name => "B", :parent => :a},
+    {:key => :c, :name => "C", :parent => :b},
+  ]
+
+  # parent と children に反応できれば構造は何でもよい
+  concerning :TreeMethods do
+    included do
+      include TreeSupport::Treeable
+      include TreeSupport::Stringify
+    end
+
+    def parent
+      self.class[@attributes[:parent]]
+    end
+
+    def children
+      self.class.find_all {|e| e.parent == self }
+    end
+  end
+end
+
+puts Foo.find_all(&:root?).collect(&:to_s_tree)
+# >> A
+# >> └─B
+# >>     └─C

examples/Gemfile

@@ -1,6 +1,7 @@
 source "https://rubygems.org"
 
 gem "tree_support", :path => ".."
+gem "static_record", :github => "akicho8/static_record"
 
 gem "rails"
 gem "activerecord"