Select user who is involved [github #3]

This adds a list to select the user(s) who are involved in the issue.
This version is incompatible with the older versions of the plugin.
The old queries using this filter need to be re-created.

config/locales/en.yml

@@ -1,4 +1,3 @@
 # English strings go here for Rails i18n
 en:
- field_involvement: My involvement
- text_involved: involved
+ field_involved_users: Involved users

lib/redmine_involvement_filter/query_patch.rb

@@ -14,38 +14,35 @@ def available_filters_with_involvement
  available_filters_without_involvement
 
  if User.current.logged?
- @available_filters["involvement"] = {
- :name => l('field_involvement'),
- :type => :list,
- :values => [[l(:text_involved), "1"]],
- :order => 4 # places it next to the Assignee filter
- }
+ filter = @available_filters['involved_user_id'] = @available_filters['assigned_to_id'].dup
+ filter[:name] = l('field_involved_users')
+ filter[:type] = :list
  end
 
  @available_filters
  end
 
- def sql_for_involvement_field(field, operator, value)
- uid = User.current.id
+ def sql_for_involved_user_id_field(field, operator, value)
+ value.push(User.current.id.to_s) if value.delete("me") && User.current.logged?
+ user_ids = '(' + value.map(&:to_i).join(',') + ')'
+
  if operator == '='
- op = '='
  inop = 'IN'
- whereop = 'OR'
+ cond = 'OR'
  else
- op = '<>'
  inop = 'NOT IN'
- whereop = 'AND'
+ cond = 'AND'
  end
 
- ids_sql = %(
+ issue_ids_sql = %(
 SELECT DISTINCT journalized_id
  FROM #{Journal.table_name}
  WHERE journalized_type='Issue'
- AND user_id #{op} #{uid}
+ AND user_id IN #{user_ids}
 )
- sql = ["#{Issue.table_name}.assigned_to_id #{op} #{uid}",
- "#{Issue.table_name}.author_id #{op} #{uid}",
- "#{Issue.table_name}.id #{inop} (#{ids_sql})"].join(" #{whereop} ")
+ sql = ["#{Issue.table_name}.assigned_to_id #{inop} #{user_ids}",
+ "#{Issue.table_name}.author_id #{inop} #{user_ids}",
+ "#{Issue.table_name}.id #{inop} (#{issue_ids_sql})"].join(" #{cond} ")
 
  "(#{sql})"
  end