adds new asset type : unit of activity

account_asset_management/__manifest__.py

@@ -28,5 +28,6 @@
         "data/cron.xml",
         "wizard/wiz_account_asset_report.xml",
         "wizard/wiz_asset_move_reverse.xml",
+        "wizard/account_asset_unit_of_activity.xml",
     ],
 }

account_asset_management/models/account_asset.py

@@ -11,7 +11,7 @@
 
 from dateutil.relativedelta import relativedelta
 
-from odoo import _, api, fields, models
+from odoo import _, api, exceptions, fields, models
 from odoo.exceptions import UserError
 from odoo.osv import expression
 
@@ -293,6 +293,26 @@ class AccountAsset(models.Model):
         carried forward to the first depreciation line of the current open
         period.""",
     )
+    total_number_of_use = fields.Integer()
+    remaining_usage = fields.Integer(compute="_compute_remaining_usage")
+
+    @api.constrains("total_number_of_use", "method")
+    def _check_number_of_use(self):
+        for rec in self:
+            if rec.method == "unit-activity":
+                if rec.total_number_of_use == 0:
+                    raise exceptions.ValidationError("Number of usage can't be null")
+                elif rec.total_number_of_use < 0:
+                    raise exceptions.ValidationError("Number of usage can't be negativ")
+
+    @api.depends("total_number_of_use")
+    def _compute_remaining_usage(self):
+        for asset in self:
+            asset.remaining_usage = asset.total_number_of_use - sum(
+                asset.depreciation_line_ids.filtered(
+                    lambda a: a.type == "depreciate"
+                ).mapped("quantity")
+            )
 
     @api.model
     def _default_company_id(self):
@@ -532,8 +552,11 @@ def validate(self):
                 asset.state = "close"
             else:
                 asset.state = "open"
-                if not asset.depreciation_line_ids.filtered(
-                    lambda l: l.type != "create"
+                if (
+                    not asset.depreciation_line_ids.filtered(
+                        lambda l: l.type != "create"
+                    )
+                    and asset.method != "unit-activity"
                 ):
                     asset.compute_depreciation_board()
         return True
@@ -578,6 +601,19 @@ def open_entries(self):
             "domain": [("id", "in", self.account_move_line_ids.mapped("move_id").ids)],
         }
 
+    def add_unit_of_activity(self):
+        self.ensure_one()
+        ctx = dict(self.env.context, active_ids=self.ids, active_id=self.id)
+
+        return {
+            "name": _("Add Asset Unit of activity"),
+            "view_mode": "form",
+            "res_model": "account.asset.unit.of.activity",
+            "target": "new",
+            "type": "ir.actions.act_window",
+            "context": ctx,
+        }
+
     def _group_lines(self, table):
         """group lines prior to depreciation start period."""
 
@@ -765,7 +801,6 @@ def compute_depreciation_board(self):
             else:  # no posted lines
                 table_i_start = 0
                 line_i_start = 0
-
             asset._compute_depreciation_line(
                 depreciated_value_posted,
                 table_i_start,

account_asset_management/models/account_asset_line.py

@@ -79,6 +79,7 @@ class AccountAssetLine(models.Model):
     company_currency_id = fields.Many2one(
         related="asset_id.company_id.currency_id", store=True, string="Company Currency"
     )
+    quantity = fields.Integer(readonly=True)
 
     @api.depends("amount", "previous_id", "type")
     def _compute_values(self):

account_asset_management/models/account_asset_profile.py

@@ -182,6 +182,7 @@ def _selection_method(self):
             ("degressive", _("Degressive")),
             ("degr-linear", _("Degressive-Linear")),
             ("degr-limit", _("Degressive  up to Salvage Value")),
+            ("unit-activity", _("Unit of Activity")),
         ]
 
     @api.model

account_asset_management/security/ir.model.access.csv

@@ -17,3 +17,4 @@ access_account_asset_remove_user,account.asset.remove,model_account_asset_remove
 access_account_asset_compute_user,account.asset.compute,model_account_asset_compute,account.group_account_user,1,1,1,1
 access_wiz_account_asset_report,wiz.account.asset.report,model_wiz_account_asset_report,account.group_account_readonly,1,1,1,0
 access_wiz_asset_move_reverse_user,wiz.asset.move.reverse,model_wiz_asset_move_reverse,account.group_account_user,1,1,1,1
+access_account_asset_unit_user,account.asset.unit.of.activity,model_account_asset_unit_of_activity,account.group_account_user,1,1,1,1

account_asset_management/views/account_asset.xml

@@ -111,7 +111,10 @@
                                 />
                             </group>
                             <group>
-                                <group string="Depreciation Dates">
+                                <group
+                                    string="Depreciation Dates"
+                                    attrs="{'invisible': [('method', '=', 'unit-activity')]}"
+                                >
                                     <field name="method_time" required="1" />
                                     <field
                                         name="method_number"
@@ -127,18 +130,30 @@
                                         name="use_leap_years"
                                         attrs="{'invisible': [('days_calc', '=', True)]}"
                                     />
+
                                 </group>
                                 <group string="Depreciation Method">
                                     <field name="method" required="1" />
                                     <field
                                         name="method_progress_factor"
-                                        attrs="{'invisible': [('method', 'in', ['linear', 'linear-limit'])], 'required': [('method', 'in', ['degressive', 'degr-linear', 'degr-limit'])]}"
+                                        attrs="{'invisible': [('method', 'in', ['linear', 'linear-limit', 'unit-activity'])], 'required': [('method', 'in', ['degressive', 'degr-linear', 'degr-limit'])]}"
                                     />
                                     <field
                                         name="prorata"
-                                        attrs="{'readonly': [('method_time', '!=', 'year')]}"
+                                        attrs="{'readonly': [('method_time', '!=', 'year')], 'invisible': [('method', 'in', ['unit-activity'])]}"
                                     />
                                     <field name="carry_forward_missed_depreciations" />
+                                    <field
+                                        name="total_number_of_use"
+                                        attrs="{'invisible': [('method', 'not in', ['unit-activity'])],
+                                                'readonly':['|', ('move_line_check', '=', True), ('state', '!=', 'draft')]
+                                        }"
+                                    />
+                                    <field
+                                        name="remaining_usage"
+                                        readonly="1"
+                                        attrs="{'invisible': [('method', 'not in', ['unit-activity'])]}"
+                                    />
                                 </group>
                             </group>
                         </page>
@@ -149,7 +164,16 @@
                                     name="compute_depreciation_board"
                                     string="Compute"
                                     icon="fa-gears"
-                                    attrs="{'invisible': [('state', 'in', ['close', 'removed'])]}"
+                                    attrs="{'invisible': ['|',('state', 'in', ['close', 'removed']), ('method', '=', 'unit-activity')]}"
+                                />
+                                <button
+                                    name="add_unit_of_activity"
+                                    string="Add Unit of Activity"
+                                    help="Add a line of usage for this Asset"
+                                    icon="fa-plus"
+                                    class="oe_highlight"
+                                    type="object"
+                                    attrs="{'invisible':['|', ('method', '!=', 'unit-activity'),('remaining_usage', '=', 0)]}"
                                 />
                             </div>
                             <field
@@ -162,8 +186,21 @@
                                     create="false"
                                 >
                                     <field name="type" />
-                                    <field name="line_date" />
-                                    <field name="line_days" sum="Total Days" />
+                                    <field
+                                        name="line_date"
+                                        attrs="{'invisible': [('move_check', '!=', True)]}"
+                                    />
+                                    <field
+                                        name="line_days"
+                                        sum="Total Days"
+                                        attrs="{'column_invisible': [('parent.method', '=', 'unit-activity')]}"
+                                    />
+                                    <field
+                                        name="quantity"
+                                        sum="Total Days"
+                                        attrs="{'column_invisible': [('parent.method', '!=', 'unit-activity')]}"
+                                    />
+
                                     <field name="depreciated_value" readonly="1" />
                                     <field name="amount" />
                                     <field name="remaining_value" readonly="1" />

account_asset_management/views/account_asset_profile.xml

@@ -39,7 +39,10 @@
                         <field name="account_residual_value_id" />
                         <field name="allow_reversal" />
                     </group>
-                    <group string="Depreciation Dates">
+                    <group 
+                        string="Depreciation Dates" 
+                        attrs="{'invisible': [('method', '=', 'unit-activity')]}"
+                    >
                         <field name="method_time" />
                         <field
                                 name="method_number"
@@ -56,11 +59,11 @@
                         <field name="method" />
                         <field
                                 name="method_progress_factor"
-                                attrs="{'invisible': [('method', 'in', ['linear', 'linear-limit'])], 'required': [('method', 'in', ['degressive', 'degr-linear', 'degr-limit'])]}"
+                                attrs="{'invisible': [('method', 'in', ['linear', 'linear-limit', 'unit-activity'])], 'required': [('method', 'in', ['degressive', 'degr-linear', 'degr-limit'])]}"
                             />
                         <field
                                 name="prorata"
-                                attrs="{'readonly':[('method_time','!=','year')]}"
+                                attrs="{'readonly':[('method_time','!=','year')], 'invisible': [('method', 'in', ['unit-activity'])]}"
                             />
                         <field name="open_asset" />
                     </group>

account_asset_management/wizard/__init__.py

@@ -2,3 +2,4 @@
 from . import account_asset_remove
 from . import wiz_account_asset_report
 from . import wiz_asset_move_reverse
+from . import account_asset_unit_of_activity

account_asset_management/wizard/account_asset_unit_of_activity.py

@@ -0,0 +1,83 @@
+from odoo import _, api, exceptions, fields, models
+
+
+class AccountAssetUnitOfActivity(models.TransientModel):
+    _name = "account.asset.unit.of.activity"
+    _description = "Compute Assets unit of activity"
+
+    auto_create_asset_move = fields.Boolean(
+        String="Create move automatically",
+        help="If the other asset line has all an move created, the move associated to this asset line will be created automatically",
+    )
+    quantity = fields.Integer(default=1)
+    date = fields.Date(default=fields.date.today())
+
+    @api.constrains("date")
+    def _check_date(self):
+        asset_id = self.env.context.get("active_id")
+        asset = self.env["account.asset"].browse(asset_id)
+        if asset.method == "unit-activity":
+            if self.date < asset.date_start:
+                raise exceptions.ValidationError(
+                    "Date can't be before assert start date"
+                )
+
+    def add_usage(self):
+        asset_id = self.env.context.get("active_id")
+        asset = self.env["account.asset"].browse(asset_id)
+        if self.quantity > asset.remaining_usage:
+            raise exceptions.UserError(
+                _("The number of remaining asset usage\n" "is exceed")
+            )
+        if asset.remaining_usage == 0:
+            raise exceptions.UserError(
+                _(
+                    "The asset is totaly depreciated.\n"
+                    "You can't add depreciation line"
+                )
+            )
+        if self.quantity < 0:
+            raise exceptions.UserError(_("The quantity can't be negative"))
+        vals = self._compute_values(asset_id)
+        vals |= {
+            "line_date": self.date,
+            "type": "depreciate",
+            "asset_id": asset_id,
+            "init_entry": False,
+            "quantity": self.quantity,
+        }
+
+        if self.auto_create_asset_move:
+            previous_depreciation_lines = asset.depreciation_line_ids.filtered(
+                lambda line: line.type == "depreciate"
+                and line.line_date <= vals.get("line_date")
+            )
+            if all([line.move_id for line in previous_depreciation_lines]):
+                aal = self.env["account.asset.line"].create(vals)
+                aal.create_move()
+            else:
+                raise exceptions.UserError(
+                    _(
+                        "Some asset lines have no associated accounting entries. \n"
+                        "Validate them before create a new one"
+                    )
+                )
+        else:
+            self.env["account.asset.line"].create(vals)
+
+    def _compute_values(self, asset_id):
+        asset = self.env["account.asset"].browse(asset_id)
+        company = asset.company_id
+        currency = company.currency_id
+        step = (asset.purchase_value - asset.salvage_value) / asset.total_number_of_use
+        dlines = asset.depreciation_line_ids.filtered(lambda r: r.type == "depreciate")
+        amount = currency.round(self.quantity * step)
+        if self.quantity == asset.remaining_usage:
+            if dlines:
+                amount = dlines[-1].remaining_value
+            else:
+                amount = asset.purchase_value
+        return {
+            "amount": amount,
+            "previous_id": dlines[-1].id if dlines else None,
+        }

account_asset_management/wizard/account_asset_unit_of_activity.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <record id="account_asset_unit_of_activity_view_form" model="ir.ui.view">
+        <field name="name">account.asset.unit.of.activity</field>
+        <field name="model">account.asset.unit.of.activity</field>
+        <field name="arch" type="xml">
+            <form string="Compute asset unit of activity">
+
+                <group>
+                    <field name="quantity" />
+                    <field name="date" />
+                    <field name="auto_create_asset_move" />
+                </group>
+                <footer>
+                    <button
+                        string="Add a usage"
+                        name="add_usage"
+                        type="object"
+                        class="oe_highlight"
+                    />
+                    <button string="Cancel" class="oe_link" special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="account_asset_unit_of_activity_action" model="ir.actions.act_window">
+        <field name="name">Unit of Activity</field>
+        <field name="res_model">account.asset.unit.of.activity</field>
+        <field name="view_mode">tree,form</field>
+        <field name="view_id" ref="account_asset_unit_of_activity_view_form" />
+        <field name="target">new</field>
+    </record>
+</odoo>