Fixes #3810 - Custom date and datetime attributes are filled with dates on creation of tickets/users after update from 4.1 to 5.x.

app/assets/javascripts/app/controllers/_ui_element/object_manager_attribute.coffee

@@ -244,7 +244,7 @@ class App.UiElement.object_manager_attribute extends App.UiElement.ApplicationUi
       params: params
     )
     configureAttributes = [
-      { name: 'data_option::diff', display: 'Default time Diff (minutes)', tag: 'integer', null: false, default: 24 },
+      { name: 'data_option::diff', display: 'Default time Diff (minutes)', tag: 'integer', null: true },
     ]
     datetimeDiff = new App.ControllerForm(
       model:
@@ -258,7 +258,7 @@ class App.UiElement.object_manager_attribute extends App.UiElement.ApplicationUi
 
   @date: (item, localParams, params) ->
     configureAttributes = [
-      { name: 'data_option::diff', display: 'Default time Diff (hours)', tag: 'integer', null: false, default: 24 },
+      { name: 'data_option::diff', display: 'Default time Diff (hours)', tag: 'integer', null: true },
     ]
     dateDiff = new App.ControllerForm(
       model:

app/models/object_manager/attribute.rb

@@ -946,12 +946,7 @@ is certain attribute used by triggers, overviews or schedulers
       [{ failed:  local_data_option[:future].nil?,
          message: 'must have boolean value for :future' },
        { failed:  local_data_option[:past].nil?,
-         message: 'must have boolean value for :past' },
-       { failed:  local_data_option[:diff].nil?,
-         message: 'must have integer value for :diff (in hours)' }]
-    when 'date'
-      [{ failed:  local_data_option[:diff].nil?,
-         message: 'must have integer value for :diff (in days)' }]
+         message: 'must have boolean value for :past' }]
     else
       []
     end

app/models/object_manager/attribute/set_defaults.rb

@@ -15,25 +15,30 @@ class ObjectManager
         method_name = "#{attr}="
 
         return if !record.respond_to? method_name
-        return if record.send(attr).present?
+        return if record.send("#{attr}_came_from_user?")
 
         record.send method_name, build_value(config)
       end
 
       def build_value(config)
-        case config[:data_type]
-        when 'date'
-          config[:diff].days.from_now
-        when 'datetime'
-          config[:diff].hours.from_now
-        else
-          config[:default]
-        end
+        method_name = "build_value_#{config[:data_type]}"
+
+        return send(method_name, config) if respond_to?(method_name, true)
+
+        config[:default]
+      end
+
+      def build_value_date(config)
+        config[:diff]&.days&.from_now
+      end
+
+      def build_value_datetime(config)
+        config[:diff]&.hours&.from_now&.change(usec: 0, sec: 0)
       end
 
       def attributes_for(record)
         query     = ObjectManager::Attribute.active.editable.for_object(record.class)
-        cache_key = "#{query.cache_key}/attribute_defaults"
+        cache_key = "#{query.cache_key_with_version}/attribute_defaults"
 
         Rails.cache.fetch cache_key do
           query

db/migrate/20211020131134_issue_3810_custom_date_attribute_no_default.rb

@@ -0,0 +1,18 @@
+# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
+
+class Issue3810CustomDateAttributeNoDefault < ActiveRecord::Migration[6.0]
+  def up
+    return if !Setting.exists?(name: 'system_init_done')
+
+    ObjectManager::Attribute
+      .where(data_type: %i[date datetime])
+      .each { |elem| update_single(elem) }
+  end
+
+  def update_single(elem)
+    elem.data_option[:diff] = nil
+    elem.save!
+  rescue => e
+    Rails.logger.error e
+  end
+end

public/assets/tests/qunit/form.js

@@ -1125,7 +1125,7 @@ QUnit.test("object manager form 1", assert => {
   params = App.ControllerForm.params(el)
   var test_params = {
     data_option: {
-      diff: 24,
+      diff: null,
       future: true,
       past: true
     },

spec/db/migrate/issue_3810_custom_date_attribute_no_default_spec.rb

@@ -0,0 +1,21 @@
+# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
+
+require 'rails_helper'
+
+RSpec.describe Issue3810CustomDateAttributeNoDefault, type: :db_migration, db_strategy: :reset_all do
+  before :all do # rubocop:disable RSpec/BeforeAfterAll
+    create('object_manager_attribute_date', name: 'rspec_date', default: 24)
+    create('object_manager_attribute_datetime', name: 'rspec_datetime', default: 24)
+
+    ObjectManager::Attribute.migration_execute
+  end
+
+  after :all do # rubocop:disable RSpec/BeforeAfterAll
+    ObjectManager::Attribute.where('name LIKE ?', 'rspec_%').destroy_all
+  end
+
+  it 'unsets diff migration' do
+    migrate
+    expect(create(:ticket)).to have_attributes(rspec_date: nil, rspec_datetime: nil)
+  end
+end

spec/factories/object_manager_attribute.rb

@@ -41,6 +41,8 @@ FactoryBot.define do
   end
 
   factory :object_manager_attribute_text, parent: :object_manager_attribute do
+    default { '' }
+
     data_type { 'input' }
     data_option do
       {
@@ -48,7 +50,7 @@ FactoryBot.define do
         'maxlength' => 200,
         'null'      => true,
         'translate' => false,
-        'default'   => default || '',
+        'default'   => default,
         'options'   => {},
         'relation'  => '',
       }
@@ -71,10 +73,12 @@ FactoryBot.define do
   end
 
   factory :object_manager_attribute_integer, parent: :object_manager_attribute do
+    default { 0 }
+
     data_type { 'integer' }
     data_option do
       {
-        'default' => default || 0,
+        'default' => default,
         'min'     => 0,
         'max'     => 9999,
       }
@@ -82,10 +86,12 @@ FactoryBot.define do
   end
 
   factory :object_manager_attribute_boolean, parent: :object_manager_attribute do
+    default { false }
+
     data_type { 'boolean' }
     data_option do
       {
-        default: default || false,
+        default: default,
         options: {
           true  => 'yes',
           false => 'no',
@@ -95,34 +101,40 @@ FactoryBot.define do
   end
 
   factory :object_manager_attribute_date, parent: :object_manager_attribute do
+    default { 24 }
+
     name      { 'date_attribute' }
     data_type { 'date' }
     data_option do
       {
-        'diff' => default || 24,
+        'diff' => default,
         'null' => true,
       }
     end
   end
 
   factory :object_manager_attribute_datetime, parent: :object_manager_attribute do
+    default { 24 }
+
     name      { 'datetime_attribute' }
     data_type { 'datetime' }
     data_option do
       {
         'future' => true,
         'past'   => true,
-        'diff'   => default || 24,
+        'diff'   => default,
         'null'   => true,
       }
     end
   end
 
   factory :object_manager_attribute_select, parent: :object_manager_attribute do
+    default { '' }
+
     data_type { 'select' }
     data_option do
       {
-        'default'    => default || '',
+        'default'    => default,
         'options'    => {
           'key_1' => 'value_1',
           'key_2' => 'value_2',
@@ -139,6 +151,8 @@ FactoryBot.define do
   end
 
   factory :object_manager_attribute_tree_select, parent: :object_manager_attribute do
+    default { '' }
+
     data_type { 'tree_select' }
     data_option do
       {

spec/models/object_manager/attribute/set_defaults_spec.rb

@@ -2,18 +2,21 @@
 
 require 'rails_helper'
 
+DEFAULT_VALUES = {
+  text:     'rspec',
+  boolean:  true,
+  date:     1,
+  datetime: 12,
+  integer:  123,
+  select:   'key_1'
+}.freeze
+
 RSpec.describe ObjectManager::Attribute::SetDefaults, type: :model do
   describe 'setting default', db_strategy: :reset_all do
     before :all do # rubocop:disable RSpec/BeforeAfterAll
-      {
-        text:     'rspec',
-        boolean:  true,
-        date:     1,
-        datetime: 12,
-        integer:  123,
-        select:   'key_1'
-      }.each do |key, value|
+      DEFAULT_VALUES.each do |key, value|
         create("object_manager_attribute_#{key}", name: "rspec_#{key}", default: value)
+        create("object_manager_attribute_#{key}", name: "rspec_#{key}_no_default", default: nil)
       end
 
       create('object_manager_attribute_text', name: 'rspec_empty', default: '')
@@ -77,7 +80,7 @@ RSpec.describe ObjectManager::Attribute::SetDefaults, type: :model do
       end
 
       it 'datetime is set' do
-        freeze_time
+        travel_to Time.current.change(usec: 0, sec: 0)
         expect(example.rspec_datetime).to eq 12.hours.from_now
       end
 
@@ -89,5 +92,28 @@ RSpec.describe ObjectManager::Attribute::SetDefaults, type: :model do
         expect(example.rspec_select).to eq 'key_1'
       end
     end
+
+    context 'when overriding default to empty value' do
+      subject(:example) do
+        params = DEFAULT_VALUES.keys.each_with_object({}) { |elem, memo| memo["rspec_#{elem}"] = nil }
+        create :ticket, params
+      end
+
+      DEFAULT_VALUES.each_key do |elem|
+        it "#{elem} is empty" do
+          expect(example.send("rspec_#{elem}")).to be_nil
+        end
+      end
+    end
+
+    context 'when default is not set' do
+      subject(:example) { create :ticket }
+
+      DEFAULT_VALUES.each_key do |elem|
+        it "#{elem} is empty" do
+          expect(example.send("rspec_#{elem}_no_default")).to be_nil
+        end
+      end
+    end
   end
 end

spec/system/system/object_manager_spec.rb

@@ -489,4 +489,30 @@ RSpec.describe 'System > Objects', type: :system do
       end
     end
   end
+
+  context 'when creating with no diff' do
+    before do
+      visit '/#system/object_manager'
+      page.find('.js-new').click
+
+      in_modal disappears: false do
+        fill_in 'Name', with: 'nodiff'
+        fill_in 'Display', with: 'NoDiff'
+      end
+    end
+
+    it 'date attribute' do
+      page.find('select[name=data_type]').select('Date')
+      fill_in 'Default time Diff (hours)', with: ''
+
+      expect { page.find('.js-submit').click }.to change(ObjectManager::Attribute, :count).by(1)
+    end
+
+    it 'datetime attribute' do
+      page.find('select[name=data_type]').select('Datetime')
+      fill_in 'Default time Diff (minutes)', with: ''
+
+      expect { page.find('.js-submit').click }.to change(ObjectManager::Attribute, :count).by(1)
+    end
+  end
 end