3 files changed, 90 insertions, 0 deletions
diff --git a/vendor/plugins/has_tag_string/README.txt b/vendor/plugins/has_tag_string/README.txt
new file mode 100644
index 000000000..0d3a38229
--- /dev/null
+++ b/vendor/plugins/has_tag_string/README.txt
@@ -0,0 +1 @@
+Plugin used only in WhatDoTheyKnow right now.
diff --git a/vendor/plugins/has_tag_string/init.rb b/vendor/plugins/has_tag_string/init.rb
new file mode 100644
index 000000000..4a07073a7
--- /dev/null
+++ b/vendor/plugins/has_tag_string/init.rb
@@ -0,0 +1,2 @@
+require 'has_tag_string'
+
diff --git a/vendor/plugins/has_tag_string/lib/has_tag_string.rb b/vendor/plugins/has_tag_string/lib/has_tag_string.rb
new file mode 100644
index 000000000..ca147ba27
--- /dev/null
+++ b/vendor/plugins/has_tag_string/lib/has_tag_string.rb
@@ -0,0 +1,87 @@
+# lib/has_tag_string.rb:
+# Lets a model have tags, represented as space separate strings in a public #
+# interface, but stored in the database as keys. Each tag can have a value
+# followed by a colon - e.g. url:http://www.flourish.org
+#
+# Copyright (c) 2010 UK Citizens Online Democracy. All rights reserved.
+# Email: francis@mysociety.org; WWW: http://www.mysociety.org/
+
+module HasTagString
+    module InstanceMethods
+        # Given an input string of tags, sets all tags to that string.
+        # XXX This immediately saves the new tags.
+        def tag_string=(tag_string)
+            tag_string = tag_string.strip
+            # split tags apart
+            tags = tag_string.split(/\s+/).uniq
+
+            ActiveRecord::Base.transaction do
+                for public_body_tag in self.public_body_tags
+                    public_body_tag.destroy
+                end
+                self.public_body_tags = []
+                for tag in tags
+                    # see if is a machine tags (i.e. a tag which has a value)
+                    name, value = PublicBodyTag.split_tag_into_name_value(tag)
+
+                    public_body_tag = PublicBodyTag.new(:name => name, :value => value)
+                    self.public_body_tags << public_body_tag
+                    public_body_tag.public_body = self
+                end
+            end
+        end
+        def tag_string
+            return self.public_body_tags.map { |t| t.name_and_value }.join(' ')
+        end
+        def has_tag?(tag)
+            for public_body_tag in self.public_body_tags
+                if public_body_tag.name == tag
+                    return true
+                end
+            end 
+            return false
+        end
+        class TagNotFound < StandardError
+        end
+        def get_tag_values(tag)
+            found = false
+            results = []
+            for public_body_tag in self.public_body_tags
+                if public_body_tag.name == tag
+                    found = true
+                    if !public_body_tag.value.nil?
+                        results << public_body_tag.value
+                    end
+                end
+            end 
+            if !found
+                raise TagNotFound
+            end
+            return results
+        end
+        def add_tag_if_not_already_present(tag)
+            self.tag_string = self.tag_string + " " + tag
+        end
+
+    end
+
+    module ClassMethods
+        # Find all public bodies with a particular tag
+        def find_by_tag(tag) 
+            return PublicBodyTag.find(:all, :conditions => ['name = ?', tag] ).map { |t| t.public_body }.sort { |a,b| a.name <=> b.name }
+        end
+    end
+
+    ######################################################################
+    # Main entry point, add has_tag_string to your model.
+    module HasMethods
+        def has_tag_string()
+            include InstanceMethods
+            self.class.send :include, ClassMethods
+        end
+    end
+
+end
+
+ActiveRecord::Base.extend HasTagString::HasMethods
+