Adds support for multiselect custom fields (#1189).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8721 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/custom_fields_helper.rb

@@ -36,6 +36,7 @@ module CustomFieldsHelper
   def custom_field_tag(name, custom_value)	
     custom_field = custom_value.custom_field
     field_name = "#{name}[custom_field_values][#{custom_field.id}]"
+    field_name << "[]" if custom_field.multiple?
     field_id = "#{name}_custom_field_values_#{custom_field.id}"
 
     field_format = Redmine::CustomFieldFormat.find_by_name(custom_field.field_format)
@@ -48,10 +49,22 @@ module CustomFieldsHelper
     when "bool"
       hidden_field_tag(field_name, '0') + check_box_tag(field_name, '1', custom_value.true?, :id => field_id)
     when "list"
-      blank_option = custom_field.is_required? ?
-                       (custom_field.default_value.blank? ? "<option value=\"\">--- #{l(:actionview_instancetag_blank_option)} ---</option>" : '') :
-                       '<option></option>'
-      select_tag(field_name, blank_option.html_safe + options_for_select(custom_field.possible_values_options(custom_value.customized), custom_value.value), :id => field_id)
+      blank_option = ''
+      unless custom_field.multiple?
+        if custom_field.is_required?
+          unless custom_field.default_value.present?
+            blank_option = "<option value=\"\">--- #{l(:actionview_instancetag_blank_option)} ---</option>"
+          end
+        else
+          blank_option = '<option></option>'
+        end
+      end
+      s = select_tag(field_name, blank_option.html_safe + options_for_select(custom_field.possible_values_options(custom_value.customized), custom_value.value),
+        :id => field_id, :multiple => custom_field.multiple?)
+      if custom_field.multiple?
+        s << hidden_field_tag(field_name, '')
+      end
+      s
     else
       text_field_tag(field_name, custom_value.value, :id => field_id)
     end
@@ -71,6 +84,7 @@ module CustomFieldsHelper
 
   def custom_field_tag_for_bulk_edit(name, custom_field, projects=nil)
     field_name = "#{name}[custom_field_values][#{custom_field.id}]"
+    field_name << "[]" if custom_field.multiple?
     field_id = "#{name}_custom_field_values_#{custom_field.id}"
     field_format = Redmine::CustomFieldFormat.find_by_name(custom_field.field_format)
     case field_format.try(:edit_as)
@@ -84,7 +98,11 @@ module CustomFieldsHelper
                                                    [l(:general_text_yes), '1'],
                                                    [l(:general_text_no), '0']]), :id => field_id)
       when "list"
-        select_tag(field_name, options_for_select([[l(:label_no_change_option), '']] + custom_field.possible_values_options(projects)), :id => field_id)
+        options = []
+        options << [l(:label_no_change_option), ''] unless custom_field.multiple?
+        options += custom_field.possible_values_options(projects)
+        select_tag(field_name, options_for_select(options),
+          :id => field_id, :multiple => custom_field.multiple?)
       else
         text_field_tag(field_name, '', :id => field_id)
     end
@@ -98,7 +116,11 @@ module CustomFieldsHelper
 
   # Return a string used to display a custom value
   def format_value(value, field_format)
-    Redmine::CustomFieldFormat.format_value(value, field_format) # Proxy
+    if value.is_a?(Array)
+      value.collect {|v| format_value(v, field_format)}.join(', ')
+    else
+      Redmine::CustomFieldFormat.format_value(value, field_format)
+    end
   end
 
   # Return an array of custom field formats which can be used in select_tag
@@ -110,8 +132,18 @@ module CustomFieldsHelper
   def render_api_custom_values(custom_values, api)
     api.array :custom_fields do
       custom_values.each do |custom_value|
-        api.custom_field :id => custom_value.custom_field_id, :name => custom_value.custom_field.name do
-          api.value custom_value.value
+        attrs = {:id => custom_value.custom_field_id, :name => custom_value.custom_field.name}
+        attrs.merge!(:multiple => true) if custom_value.custom_field.multiple?
+        api.custom_field attrs do
+          if custom_value.value.is_a?(Array)
+            api.array :value do
+              custom_value.value.each do |value|
+                api.value value unless value.blank?
+              end
+            end
+          else
+            api.value custom_value.value
+          end
         end
       end
     end unless custom_values.empty?

app/helpers/issues_helper.rb

@@ -161,7 +161,44 @@ module IssuesHelper
     out
   end
 
+  # Returns the textual representation of a journal details
+  # as an array of strings
+  def details_to_strings(details, no_html=false)
+    strings = []
+    values_by_field = {}
+    details.each do |detail|
+      if detail.property == 'cf'
+        field_id = detail.prop_key
+        field = CustomField.find_by_id(field_id)
+        if field && field.multiple?
+          values_by_field[field_id] ||= {:added => [], :deleted => []}
+          if detail.old_value
+            values_by_field[field_id][:deleted] << detail.old_value
+          end
+          if detail.value
+            values_by_field[field_id][:added] << detail.value
+          end
+          next
+        end
+      end
+      strings << show_detail(detail, no_html)
+    end
+    values_by_field.each do |field_id, changes|
+      detail = JournalDetail.new(:property => 'cf', :prop_key => field_id)
+      if changes[:added].any?
+        detail.value = changes[:added]
+        strings << show_detail(detail, no_html)
+      elsif changes[:deleted].any?
+        detail.old_value = changes[:deleted]
+        strings << show_detail(detail, no_html)
+      end
+    end
+    strings
+  end
+
+  # Returns the textual representation of a single journal detail
   def show_detail(detail, no_html=false)
+    multiple = false
     case detail.property
     when 'attr'
       field = detail.prop_key.to_s.gsub(/\_id$/, "")
@@ -192,6 +229,7 @@ module IssuesHelper
     when 'cf'
       custom_field = CustomField.find_by_id(detail.prop_key)
       if custom_field
+        multiple = custom_field.multiple?
         label = custom_field.name
         value = format_value(detail.value, custom_field.field_format) if detail.value
         old_value = format_value(detail.old_value, custom_field.field_format) if detail.old_value
@@ -232,6 +270,8 @@ module IssuesHelper
       when 'attr', 'cf'
         if !detail.old_value.blank?
           l(:text_journal_changed, :label => label, :old => old_value, :new => value).html_safe
+        elsif multiple
+          l(:text_journal_added, :label => label, :value => value).html_safe
         else
           l(:text_journal_set_to, :label => label, :value => value).html_safe
         end

app/helpers/queries_helper.rb

@@ -31,7 +31,14 @@ module QueriesHelper
 
   def column_content(column, issue)
     value = column.value(issue)
-
+    if value.is_a?(Array)
+      value.collect {|v| column_value(column, issue, v)}.compact.sort.join(', ')
+    else
+      column_value(column, issue, value)
+    end
+  end
+  
+  def column_value(column, issue, value)
     case value.class.name
     when 'String'
       if column.name == :subject