module can be installd

models/product_product.py

@@ -7,6 +7,6 @@ class ProductProduct(models.Model):
     description_sale = fields.Text(
         "Sale Description",
         translate=True,
-        help="A description of the Product that you want to communicate to your customers. "
+        help="A product's description you want to inform to your customers.\n"
         "This description will be copied to every Sales Order, Delivery Order and Customer Invoice/Credit Note",
     )

models/res_partner_contract.py

@@ -3,13 +3,13 @@ import datetime
 from odoo import _, fields, models
 
 from ..utils import MODULE_NAME
-from ..utils.misc import Extension, IDocument
+# from ..utils.misc import Extension, IDocument
 
 
-class PartnerContract(models.Model, IDocument, Extension):
+class PartnerContract(models.Model):    #, IDocument, Extension):
     _name = "res.partner.contract"
     _description = "Contract"
-    _inherit = ["mail.thread", "mail.activity.mixin", "mail.followers"]
+    _inherit = ["mail.thread", "mail.activity.mixin", "mail.followers", "client_contracts.utils"]
 
     def _get_default_name(self):
         """Returns name format `№YYMM-D-N`,
@@ -43,7 +43,7 @@ class PartnerContract(models.Model, IDocument, Extension):
     company_id = fields.Many2one(
         "res.partner",
         string="Company",
-        default=lambda self: self.env.user.company_id.partner_id,
+        default=lambda self: self.env.company.partner_id,
     )
     create_date_ts = fields.Char(default=_get_default_create_date_ts)
     res_model = fields.Char(default=lambda self: self._name)
@@ -79,7 +79,7 @@ class PartnerContract(models.Model, IDocument, Extension):
         readonly=True,
         copy=False,
         index=True,
-        track_visibility="onchange",
+        tracking=True,
         track_sequence=3,
         default="draft",
     )

models/res_partner_contract_annex.py

@@ -3,11 +3,12 @@ import math
 from odoo import _, api, fields, models
 
 from ..utils import MODULE_NAME
-from ..utils.misc import Extension, IDocument
+# from ..utils.misc import Extension, IDocument
 
 
-class ContractOrderAnnex(models.Model, IDocument, Extension):
+class ContractOrderAnnex(models.Model):    # , IDocument, Extension):
     _name = "res.partner.contract.annex"
+    _inherit = ["client_contracts.utils"]
     _description = "Contract Annex"
 
     name = fields.Char(
@@ -85,12 +86,18 @@ class ContractOrderAnnex(models.Model, IDocument, Extension):
         string="Total Cost",
     )
 
-    payment_part_one = fields.Float(string="Payment 1 Part (%)", default=100)
+    payment_part_one = fields.Float(
+        string="Payment 1 Part (%)",
+        default=100,
+        digits="Account",
+    )
     payment_part_two = fields.Float(
         string="Payment 2 Part (%)",
+        digits="Account",
     )
     payment_part_three = fields.Float(
         string="Payment 3 Part (%)",
+        digits="Account",
     )
 
     @api.depends("name")
@@ -134,14 +141,11 @@ class ContractOrderAnnex(models.Model, IDocument, Extension):
     @api.model
     def create(self, values):
         record = super().create(values)
-
         # Fill annex_id to domain it in future
         record.order_id.contract_annex_id = record.id
-
         # Counter
         record.counter = record.contract_id.contract_annex_number
         record.contract_id.contract_annex_number += 1  # TODO: should I use a sequence?
-
         return record
 
     def action_print_form(self):

security/ir.model.access.csv

@@ -6,3 +6,4 @@ access_contracts_field_transient,access_contracts_field_transient,model_res_part
 access_contracts_field_contract_annex,access_contracts_field_contract_annex,model_res_partner_contract_annex,base.group_user,1,1,1,1
 access_contract_document_template,access_contract_document_template,model_res_partner_document_template,base.group_user,1,0,0,0
 access_contract_document_template_manager,access_contract_document_template,model_res_partner_document_template,hr.group_hr_manager,1,1,1,1
+access_contracts_wizard,access_contracts_wizard,model_res_partner_contract_wizard,base.group_user,1,1,1,1

utils/__init__.py

@@ -1 +1,3 @@
+from . import misc
+
 MODULE_NAME = __package__.split(".")[-2]

utils/misc.py

@@ -1,11 +1,11 @@
 import datetime as dt
-import inspect
+# import inspect
 
-from odoo import fields
+from odoo import models   # , fields
 from odoo.tools.misc import DEFAULT_SERVER_DATE_FORMAT, DEFAULT_SERVER_DATETIME_FORMAT
 
 
-class IDocument(object):
+'''class IDocument(object):
     """Class must be used as an interface for create new document based model"""
 
     def get_name_by_document_template(self, document_template_id: fields.Many2one):
@@ -16,17 +16,22 @@ class IDocument(object):
     def get_filename_by_document_template(self, document_template_id: fields.Many2one):
         raise NotImplementedError(
             "Method {} is not implemented".format(inspect.currentframe().f_code.co_name)
-        )
+        )'''
 
 
-class Extension(object):
-    def parse_odoo_date(self, date: str):
+class Utils(models.AbstractModel):
+    _name = "client_contracts.utils"
+
+    @staticmethod
+    def parse_odoo_date(date: str):
         return dt.datetime.strptime(date, DEFAULT_SERVER_DATE_FORMAT)
 
-    def parse_odoo_datetime(self, datetime: str):
+    @staticmethod
+    def parse_odoo_datetime(datetime: str):
         return dt.datetime.strptime(datetime, DEFAULT_SERVER_DATETIME_FORMAT)
 
-    def to_fixed(self, number, digit=2):
+    @staticmethod
+    def to_fixed(number, digit=2):
         if isinstance(number, str) and number.isdigit():
             number = float(number)
         return format(number, ".{digit}f".format(digit=digit))

views/res_partner.xml

@@ -7,7 +7,6 @@
         <field name="type">ir.actions.act_window</field>
         <field name="res_model">res.partner.contract.field</field>
         <field name="view_mode">tree,form</field>
-        <field name="view_type">form</field>
     </record>
 
     <!-- res.partner.document.template action window -->
@@ -16,7 +15,6 @@
         <field name="type">ir.actions.act_window</field>
         <field name="res_model">res.partner.document.template</field>
         <field name="view_mode">tree,form</field>
-        <field name="view_type">form</field>
     </record>
 
     <record id="res_partner_contract_info_inherit_view" model="ir.ui.view">
@@ -66,11 +64,11 @@
         <field name="priority" eval="25"/>
         <field name="arch" type="xml">
 
-            <button name="toggle_active" position="before">
-                <button class="oe_inline oe_stat_button" type="action" name="%(res_partner_contract_partner_action)d" attrs="{'invisible': [('customer', '=', False)]}" icon="fa-pencil-square-o">
+            <xpath expr="//div[@name='button_box']" position="inside">
+                <button class="oe_inline oe_stat_button" type="action" name="%(res_partner_contract_partner_action)d" attrs="{'invisible': [('parent_id', '!=', False)]}" icon="fa-pencil-square-o">
                     <field string="Contracts" name="contract_count" widget="statinfo"/>
                 </button>
-            </button>
+            </xpath>
             
         </field>
     </record>

views/res_partner_contract.xml

@@ -87,7 +87,6 @@
     <record id="res_partner_contract_action" model="ir.actions.act_window">
         <field name="name">Contracts</field>
         <field name="res_model">res.partner.contract</field>
-        <field name="view_type">form</field>
         <field name="view_mode">tree,form</field>
         <field name="context">{}</field>
     </record>
@@ -95,7 +94,6 @@
     <record id="res_partner_contract_partner_action" model="ir.actions.act_window">
         <field name="name">Contracts</field>
         <field name="res_model">res.partner.contract</field>
-        <field name="view_type">form</field>
         <field name="view_mode">tree,form</field>
         <field name="context">{'search_default_partner_id': active_id}</field>
     </record>

wizard/res_partner_contract_wizard.py

@@ -6,13 +6,14 @@ from odoo.exceptions import ValidationError
 
 from ..utils import MODULE_NAME
 from ..utils.docxtpl import get_document_from_values_stream
-from ..utils.misc import Extension
+# from ..utils.misc import Extension
 
 _logger = logging.getLogger(__name__)
 
 
-class ContractWizard(models.TransientModel, Extension):
+class ContractWizard(models.TransientModel):    #, Extension):
     _name = "res.partner.contract.wizard"
+    _inherit = ["client_contracts.utils"]
 
     def _default_target(self):
         return "{model},{target_id}".format(