diff --git a/app/controllers/dmsf_controller.rb b/app/controllers/dmsf_controller.rb
index df22c7fe..bf352a2f 100644
--- a/app/controllers/dmsf_controller.rb
+++ b/app/controllers/dmsf_controller.rb
@@ -73,7 +73,7 @@ class DmsfController < ApplicationController
           end
         end
         @dir_links = []
-        DmsfLink.where(:project_id => @project.id, :target_type => DmsfFolder.model_name.name).visible.each do |l|
+        DmsfLink.where(:project_id => @project.id, :target_type => DmsfFolder.model_name.to_s).visible.each do |l|
           l.target_folder.custom_field_values.each do |v|
             if v.custom_field_id == params[:custom_field_id].to_i
               if v.custom_field.compare_values?(v.value, params[:custom_value])
@@ -84,7 +84,7 @@ class DmsfController < ApplicationController
           end
         end
         @file_links = []
-        DmsfLink.where(:project_id => @project.id, :target_type => DmsfFile.model_name.name).visible.each do |l|
+        DmsfLink.where(:project_id => @project.id, :target_type => DmsfFile.model_name.to_s).visible.each do |l|
           r = l.target_file.last_revision if l.target_file
           if r
             r.custom_field_values.each do |v|
@@ -157,8 +157,8 @@ class DmsfController < ApplicationController
     @file_delete_allowed = User.current.allowed_to? :file_delete, @project
     @subfolders = DmsfFolder.deleted.where(:project_id => @project.id)
     @files = DmsfFile.deleted.where(:project_id => @project.id)
-    @dir_links = DmsfLink.deleted.where(:project_id => @project.id, :target_type => DmsfFolder.model_name.name)
-    @file_links = DmsfLink.deleted.where(:project_id => @project.id, :target_type => DmsfFile.model_name.name)
+    @dir_links = DmsfLink.deleted.where(:project_id => @project.id, :target_type => DmsfFolder.model_name.to_s)
+    @file_links = DmsfLink.deleted.where(:project_id => @project.id, :target_type => DmsfFile.model_name.to_s)
     @url_links = DmsfLink.deleted.where(:project_id => @project.id, :target_type => 'DmsfUrl')
   end
 
diff --git a/app/controllers/dmsf_links_controller.rb b/app/controllers/dmsf_links_controller.rb
index 1b9efbce..9a9a5d8e 100644
--- a/app/controllers/dmsf_links_controller.rb
+++ b/app/controllers/dmsf_links_controller.rb
@@ -105,10 +105,10 @@ class DmsfLinksController < ApplicationController
         @dmsf_link.target_type = 'DmsfUrl'
       elsif params[:dmsf_link][:target_file_id].present?
         @dmsf_link.target_id = params[:dmsf_link][:target_file_id]
-        @dmsf_link.target_type = DmsfFile.model_name.name
+        @dmsf_link.target_type = DmsfFile.model_name.to_s
       else
         @dmsf_link.target_id = DmsfLinksHelper.is_a_number?(params[:dmsf_link][:target_folder_id]) ? params[:dmsf_link][:target_folder_id].to_i : nil
-        @dmsf_link.target_type = DmsfFolder.model_name.name
+        @dmsf_link.target_type = DmsfFolder.model_name.to_s
       end
       @dmsf_link.name = params[:dmsf_link][:name]
             
@@ -119,7 +119,7 @@ class DmsfLinksController < ApplicationController
         @dmsf_file_id = params[:dmsf_link][:dmsf_file_id]
         @type = params[:dmsf_link][:type]
         @target_folder_id = params[:dmsf_link][:target_folder_id].to_i if DmsfLinksHelper.is_a_number?(params[:dmsf_link][:target_folder_id])
-        @target_file_id = @dmsf_link.target_id if @dmsf_link.target_type == DmsfFile.model_name.name
+        @target_file_id = @dmsf_link.target_id if @dmsf_link.target_type == DmsfFile.model_name.to_s
         render :action => 'new'
       end
     else
@@ -133,10 +133,10 @@ class DmsfLinksController < ApplicationController
         @dmsf_link.target_type = 'DmsfUrl'
       elsif params[:dmsf_link][:dmsf_file_id].present?
         @dmsf_link.target_id = params[:dmsf_link][:dmsf_file_id]
-        @dmsf_link.target_type = DmsfFile.model_name.name
+        @dmsf_link.target_type = DmsfFile.model_name.to_s
       else
         @dmsf_link.target_id = params[:dmsf_link][:dmsf_folder_id]
-        @dmsf_link.target_type = DmsfFolder.model_name.name
+        @dmsf_link.target_type = DmsfFolder.model_name.to_s
       end
       @dmsf_link.name = params[:dmsf_link][:name]
 
diff --git a/app/models/dmsf_file.rb b/app/models/dmsf_file.rb
index 6280e0e9..323636e1 100644
--- a/app/models/dmsf_file.rb
+++ b/app/models/dmsf_file.rb
@@ -42,7 +42,7 @@ class DmsfFile < ActiveRecord::Base
       :dependent => :destroy
     has_many :locks, -> { where(entity_type: 0).order("#{DmsfLock.table_name}.updated_at DESC") },
       :class_name => 'DmsfLock', :foreign_key => 'entity_id', :dependent => :destroy
-    has_many :referenced_links, -> { where target_type: DmsfFile.model_name.name},
+    has_many :referenced_links, -> { where target_type: DmsfFile.model_name.to_s},
       :class_name => 'DmsfLink', :foreign_key => 'target_id', :dependent => :destroy
     accepts_nested_attributes_for :revisions, :locks, :referenced_links, :project
   else
@@ -54,7 +54,7 @@ class DmsfFile < ActiveRecord::Base
       :conditions => {:entity_type => 0},
       :dependent => :destroy
     has_many :referenced_links, :class_name => 'DmsfLink', :foreign_key => 'target_id',
-      :conditions => {:target_type => DmsfFile.model_name.name}, :dependent => :destroy
+      :conditions => {:target_type => DmsfFile.model_name.to_s}, :dependent => :destroy
   end
 
   if (Rails::VERSION::MAJOR > 3)
diff --git a/app/models/dmsf_folder.rb b/app/models/dmsf_folder.rb
index d50f76e6..6275b636 100644
--- a/app/models/dmsf_folder.rb
+++ b/app/models/dmsf_folder.rb
@@ -318,47 +318,7 @@ class DmsfFolder < ActiveRecord::Base
     file_links.visible.count +
     url_links.visible.count
   end 
-  
-  # To full fill searchable module expectations in Redmine <= 3.0
-  # TODO: Remove this function in the next release
-  def self.search(tokens, projects = nil, options = {})
-    tokens = [] << tokens unless tokens.is_a?(Array)
-    projects = [] << projects unless projects.nil? || projects.is_a?(Array)
-
-    find_options = {}
-    find_options[:order] = 'dmsf_folders.updated_at ' + (options[:before] ? 'DESC' : 'ASC')
-
-    limit_options = {}
-    limit_options[:limit] = options[:limit] if options[:limit]
-    if options[:offset]
-      limit_options[:conditions] = '(dmsf_folders.updated_at ' + (options[:before] ? '<' : '>') + "'#{connection.quoted_date(options[:offset])}')"
-    end
-
-    columns = options[:titles_only] ? ['dmsf_folders.title'] : ['dmsf_folders.title', 'dmsf_folders.description']
-
-    token_clauses = columns.collect {|column| "(LOWER(#{column}) LIKE ?)"}
-
-    sql = (['(' + token_clauses.join(' OR ') + ')'] * tokens.size).join(options[:all_words] ? ' AND ' : ' OR ')
-    find_options[:conditions] = [sql, * (tokens.collect {|w| "%#{w.downcase}%"} * token_clauses.size).sort]
-
-    project_conditions = []
-    project_conditions << (Project.allowed_to_condition(User.current, :view_dmsf_files))
-    project_conditions << "project_id IN (#{projects.collect(&:id).join(',')})" if projects
-
-    results = []
-    results_count = 0
     
-    includes(:project).
-    where(project_conditions.join(' AND ')).scoping do
-      where(find_options[:conditions]).order(find_options[:order]).scoping do
-        results_count = count(:all)
-        results = find(:all, limit_options)
-      end
-    end
-
-    [results, results_count]
-  end
-  
   private
 
   def self.directory_subtree(tree, folder, level, current_folder)
diff --git a/app/models/dmsf_link.rb b/app/models/dmsf_link.rb
index 17265090..516480e4 100644
--- a/app/models/dmsf_link.rb
+++ b/app/models/dmsf_link.rb
@@ -51,7 +51,7 @@ class DmsfLink < ActiveRecord::Base
   end
 
   def target_folder_id
-    if self.target_type == DmsfFolder.model_name.name
+    if self.target_type == DmsfFolder.model_name.to_s
       self.target_id
     else
       f = DmsfFile.find_by_id self.target_id
@@ -64,7 +64,7 @@ class DmsfLink < ActiveRecord::Base
   end
 
   def target_file_id
-    self.target_id if self.target_type == DmsfFile.model_name.name
+    self.target_id if self.target_type == DmsfFile.model_name.to_s
   end
 
   def target_file
diff --git a/test/unit/dmsf_folder_test.rb b/test/unit/dmsf_folder_test.rb
index 28ca3c3d..f8fce632 100644
--- a/test/unit/dmsf_folder_test.rb
+++ b/test/unit/dmsf_folder_test.rb
@@ -50,7 +50,7 @@ class DmsfFolderTest < RedmineDmsf::Test::UnitTest
     @folder4.delete true
     assert_nil DmsfFolder.find_by_id(@folder4.id)        
     # TODO: Doesn't work in Travis - a problem with bolean visiblity
-    #assert_equal 0, DmsfLink.where(:target_id => @folder4.id, :target_type => DmsfFolder.model_name.name).count
+    #assert_equal 0, DmsfLink.where(:target_id => @folder4.id, :target_type => DmsfFolder.model_name.to_s).count
   end
   
 end
\ No newline at end of file
diff --git a/test/unit/dmsf_links_test.rb b/test/unit/dmsf_links_test.rb
index 6ba41a76..d6245ccf 100644
--- a/test/unit/dmsf_links_test.rb
+++ b/test/unit/dmsf_links_test.rb
@@ -50,7 +50,7 @@ class DmsfLinksTest < RedmineDmsf::Test::UnitTest
     folder_link = DmsfLink.new
     folder_link.target_project_id = @project1.id
     folder_link.target_id = @folder1.id
-    folder_link.target_type = DmsfFolder.model_name.name
+    folder_link.target_type = DmsfFolder.model_name.to_s
     folder_link.name = 'folder1_link2'
     folder_link.project_id = @project1.id
     folder_link.created_at = DateTime.now()
@@ -61,7 +61,7 @@ class DmsfLinksTest < RedmineDmsf::Test::UnitTest
     file_link = DmsfLink.new
     file_link.target_project_id = @project1.id
     file_link.target_id = @file1.id
-    file_link.target_type = DmsfFile.model_name.name
+    file_link.target_type = DmsfFile.model_name.to_s
     file_link.name = 'file1_link2'
     file_link.project_id = @project1.id
     file_link.created_at = DateTime.now()