From 391a9469d1c9b72f14114a6019a4c19d499ee389 Mon Sep 17 00:00:00 2001
From: Go MAEDA <maeda@farend.jp>
Date: Wed, 8 May 2019 08:57:31 +0000
Subject: [PATCH] Allow a bigger range for the gantt timeline (#14654).

Patch by Yuichi HARADA.


git-svn-id: http://svn.redmine.org/redmine/trunk@18136 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/views/gantts/show.html.erb      | 2 +-
 app/views/settings/_issues.html.erb | 2 ++
 config/locales/en.yml               | 1 +
 config/settings.yml                 | 3 +++
 lib/redmine/helpers/gantt.rb        | 2 +-
 5 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/app/views/gantts/show.html.erb b/app/views/gantts/show.html.erb
index 216c10061..476c86025 100644
--- a/app/views/gantts/show.html.erb
+++ b/app/views/gantts/show.html.erb
@@ -61,7 +61,7 @@
 </p>
 
 <p class="buttons">
-  <%= number_field_tag 'months', @gantt.months, :min => 1, :max => 24, :autocomplete => false %>
+  <%= number_field_tag 'months', @gantt.months, :min => 1, :max => Setting.gantt_months_limit.to_i, :autocomplete => false %>
   <%= l(:label_months_from) %>
   <%= select_month(@gantt.month_from, :prefix => "month", :discard_type => true) %>
   <%= select_year(@gantt.year_from, :prefix => "year", :discard_type => true) %>
diff --git a/app/views/settings/_issues.html.erb b/app/views/settings/_issues.html.erb
index 17e8ca99b..b4e50d8e3 100644
--- a/app/views/settings/_issues.html.erb
+++ b/app/views/settings/_issues.html.erb
@@ -22,6 +22,8 @@
 <p><%= setting_text_field :issues_export_limit, :size => 6 %></p>
 
 <p><%= setting_text_field :gantt_items_limit, :size => 6 %></p>
+
+<p><%= setting_text_field :gantt_months_limit, :size => 6 %></p>
 </div>
 
 <fieldset class="box">
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 79f47cb6c..50f75877a 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -447,6 +447,7 @@ en:
   setting_commit_logtime_enabled: Enable time logging
   setting_commit_logtime_activity_id: Activity for logged time
   setting_gantt_items_limit: Maximum number of items displayed on the gantt chart
+  setting_gantt_months_limit: Maximum number of months displayed on the gantt chart
   setting_issue_group_assignment: Allow issue assignment to groups
   setting_default_issue_start_date_to_creation_date: Use current date as start date for new issues
   setting_commit_cross_project_ref: Allow issues of all the other projects to be referenced and fixed
diff --git a/config/settings.yml b/config/settings.yml
index 4ae9c7487..0d13e57a1 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -105,6 +105,9 @@ feeds_limit:
 gantt_items_limit:
   format: int
   default: 500
+gantt_months_limit:
+  format: int
+  default: 24
 # Maximum size of files that can be displayed
 # inline through the file viewer (in KB)
 file_max_size_displayed:
diff --git a/lib/redmine/helpers/gantt.rb b/lib/redmine/helpers/gantt.rb
index ac2b34e3d..12c5044f6 100644
--- a/lib/redmine/helpers/gantt.rb
+++ b/lib/redmine/helpers/gantt.rb
@@ -67,7 +67,7 @@ module Redmine
         zoom = (options[:zoom] || User.current.pref[:gantt_zoom]).to_i
         @zoom = (zoom > 0 && zoom < 5) ? zoom : 2
         months = (options[:months] || User.current.pref[:gantt_months]).to_i
-        @months = (months > 0 && months < 25) ? months : 6
+        @months = (months > 0 && months < Setting.gantt_months_limit.to_i + 1) ? months : 6
         # Save gantt parameters as user preference (zoom and months count)
         if (User.current.logged? && (@zoom != User.current.pref[:gantt_zoom] ||
               @months != User.current.pref[:gantt_months]))