Multiple choice questions

2 files changed, 67 insertions, 0 deletions

diff --git a/lib/permissions/inherit.rb b/lib/permissions/inherit.rb
new file mode 100644
index 0000000..fa35a0a
--- /dev/null
+++ b/lib/permissions/inherit.rb
@@ -0,0 +1,8 @@
+require 'permissions/set.rb'
+def inherit_permissions(source)
+  one_permission(:view){ send(source).nil? || send(source).send("viewable_by?", acting_user)}
+  one_permission(:create){ send(source).nil? || send(source).send("creatable_by?", acting_user)}
+  one_permission(:update){ send(source).nil? || send(source).send("updatable_by?", acting_user)}
+  one_permission(:destroy){ send(source).nil? || send(source).send("destroyable_by?", acting_user)}
+  one_permission(:edit){ send(source).nil? || send(source).send("editable_by?", acting_user)}
+end
diff --git a/lib/rich_types/check_list.rb b/lib/rich_types/check_list.rb
new file mode 100644
index 0000000..7605d62
--- /dev/null
+++ b/lib/rich_types/check_list.rb
@@ -0,0 +1,59 @@
+module RichTypes
+  # Stores information on which options were selected.
+  # Use options and options= methods to access & set information on which are selected.
+  # Options are set on object creation time.
+  class CheckList
+    # initialize options list
+    def initialize(options)
+      @opt_list = CheckList.get_opts(options)
+    end
+
+    # return hash.
+    # result[option.id] = {:checked => Boolean, :content => String, :id => Integer}
+    def options
+      @opt_list
+    end
+
+    # Accepts Arrays (containing id's of checked options),
+    # Hashes (indexed with option.ids, each item is hash with Boolean :checked, String :content, Integer :id))
+    # and Strings (coma-separated list of id's of checked options)
+    # does *NOT* validate.
+    def options=(what)
+      klass = what.class
+
+      if klass == Hash
+        @opt_list = what
+
+      elsif klass == Array
+          for i in @opt_list.keys
+            @opt_list[i][:checked] = what.include?(i)
+          end
+
+      elsif klass == String
+        # Convert to Array and use = for Arrays
+        self.options = what.split(',').inject(Array.new){|r, c| r.push c.to_i}
+
+      elsif klass == NilClass
+        for i in @opt_list.keys
+          @opt_list[i][:checked] = false
+        end
+      end
+    end
+
+    def to_s
+      result = ""
+      for i in @opt_list.keys
+        result += i.to_s + "," if @opt_list[i][:checked]
+      end
+      result.chop
+    end
+
+    protected
+      def self.get_opts(options)
+        options.inject(Hash.new) do |result, opt|
+          result[opt.id] = {:checked => false, :content => opt.content, :id => opt.id}
+          result
+        end
+      end
+  end
+end