commit 264176c2072d23ecf10d1b611df36f6d5f98779b
Author: Marius BALTEANU <marius.balteanu@zitec.com>
Date:   Mon Oct 7 12:28:36 2019 +0300

    Auto map fields for import

diff --git a/app/controllers/imports_controller.rb b/app/controllers/imports_controller.rb
index 633cc232c..f549ee2de 100644
--- a/app/controllers/imports_controller.rb
+++ b/app/controllers/imports_controller.rb
@@ -66,6 +66,8 @@ class ImportsController < ApplicationController
   def mapping
     @custom_fields = @import.mappable_custom_fields
 
+    auto_map_fields if @import.mapping.empty?
+
     if request.post?
       respond_to do |format|
         format.html {
@@ -159,4 +161,26 @@ class ImportsController < ApplicationController
         type && type < Import ? type : nil
       end
   end
+
+  def auto_map_fields
+    @import.settings['mapping'] = {}
+
+    headers = @import.headers.map { |string| string.parameterize.underscore }
+    mappings = @import.mapping
+
+    # Try to auto map core fields
+    import_type::AUTO_MAPPABLE_FIELDS.each do |field|
+      if !mappings.include?(field) && headers.include?(field)
+        @import.mapping[field] = headers.index(field)
+      end
+    end
+
+    # Try to auto map custom fields
+    @custom_fields.each do |field|
+      field_name = field.name.parameterize.underscore
+      if headers.include?(field_name)
+        @import.mapping["cf_#{field.id}"] = headers.index(field_name)
+      end
+    end
+  end
 end
diff --git a/app/models/import.rb b/app/models/import.rb
index 61b3553f3..969f52014 100644
--- a/app/models/import.rb
+++ b/app/models/import.rb
@@ -38,6 +38,8 @@ class Import < ActiveRecord::Base
     '%d-%m-%Y'
   ]
 
+  AUTO_MAPPABLE_FIELDS = []
+
   def self.menu_item
     nil
   end
diff --git a/app/models/issue_import.rb b/app/models/issue_import.rb
index 206c0bfd5..953b84e5e 100644
--- a/app/models/issue_import.rb
+++ b/app/models/issue_import.rb
@@ -18,6 +18,25 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 class IssueImport < Import
+
+  AUTO_MAPPABLE_FIELDS = [
+    'tracker',
+    'status',
+    'unique_id',
+    'subject',
+    'description',
+    'priority',
+    'category',
+    'assigned_to',
+    'fixed_version',
+    'is_private',
+    'parent_issue_id',
+    'start_date',
+    'due_date',
+    'estimated_hours',
+    'done_ratio'
+  ]
+
   def self.menu_item
     :issues
   end