first commit

__init__.py

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+from . import models

__manifest__.py

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+{
+    'name': 'Approval Create WH to Prep Move',
+    'version': '1.0',
+    'category': 'Inventory/Approvals',
+    'summary': 'Create Inventory Transfer from Approval Request',
+    'description': """
+        This module adds a new approval type "Create WH to Prep Move" to the Approvals app.
+        When approved, it allows users to create an inventory transfer with the operation
+        "Brigjend Katamso: WH to Prep (Send)" and destination "Physical Locations/Inter-warehouse transit".
+    """,
+    'depends': ['approvals', 'stock'],
+    'data': [
+        'views/approval_request_views.xml',
+    ],
+    'installable': True,
+    'application': False,
+    'license': 'LGPL-3',
+}

models/__init__.py

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+from . import approval_category
+from . import approval_request

models/approval_category.py

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+from odoo import api, fields, models
+
+class ApprovalCategory(models.Model):
+    _inherit = 'approval.category'
+
+    approval_type = fields.Selection(selection_add=[('wh_prep_move', 'Create WH to Prep Move')])
+
+    @api.onchange('approval_type')
+    def _onchange_approval_type(self):
+        if self.approval_type == 'wh_prep_move':
+            self.has_product = 'required'
+            self.has_quantity = 'required'

models/approval_request.py

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+from odoo import api, fields, models, _
+from odoo.exceptions import UserError
+from odoo.tools.misc import clean_context
+from markupsafe import Markup
+
+class ApprovalRequest(models.Model):
+    _inherit = 'approval.request'
+
+    picking_ids = fields.Many2many('stock.picking',compute='_compute_picking_ids', string='Transfers')
+    picking_count = fields.Integer(compute='_compute_picking_count')
+
+    def _compute_picking_ids(self):
+        for request in self:
+            request.picking_ids = self.env['stock.picking'].search([('origin', '=', request.name)]) if request.name else False
+
+    @api.depends('picking_ids')
+    def _compute_picking_count(self):
+        for request in self:
+            request.picking_count = len(request.picking_ids)
+
+    def action_create_wh_prep_move(self):
+        self.ensure_one()
+        if self.picking_count > 0:
+             return
+
+        op_type_name = "Brigjend Katamso: WH to Prep (Send)"
+        dest_loc_name = "Physical Locations/Inter-warehouse transit"
+        
+        # Find Operation Type
+        picking_type = self.env['stock.picking.type'].search([('name', '=', op_type_name)], limit=1)
+        if not picking_type:
+             # Fallback: search by display_name if name isn't exact
+             picking_types = self.env['stock.picking.type'].search([])
+             for pt in picking_types:
+                 if op_type_name in pt.display_name:
+                     picking_type = pt
+                     break
+        
+        if not picking_type:
+            raise UserError(_("Operation Type '%s' not found. Please contact administrator.") % op_type_name)
+
+        # Find Destination Location
+        dest_loc = self.env['stock.location'].search([('complete_name', '=', dest_loc_name)], limit=1)
+        if not dest_loc:
+             raise UserError(_("Destination Location '%s' not found. Please contact administrator.") % dest_loc_name)
+
+        if not self.product_line_ids:
+             raise UserError(_("You must select products to create a transfer."))
+
+        picking_vals = {
+            'picking_type_id': picking_type.id,
+            'location_id': picking_type.default_location_src_id.id,
+            'location_dest_id': dest_loc.id,
+            'origin': self.name,
+            'partner_id': self.partner_id.id,
+            'move_ids': [],
+        }
+
+        for line in self.product_line_ids:
+            move_vals = {
+                'description_picking': line.description,
+                'product_id': line.product_id.id,
+                'product_uom_qty': line.quantity,
+                'product_uom': line.product_uom_id.id,
+                'location_id': picking_type.default_location_src_id.id,
+                'location_dest_id': dest_loc.id,
+            }
+            picking_vals['move_ids'].append((0, 0, move_vals))
+
+        picking = self.env['stock.picking'].create(picking_vals)
+        picking.action_confirm() # Confirm the picking to reserve stock if possible
+        
+        msg = Markup(_("Created Inventory Transfer: <a href='#' data-oe-model='stock.picking' data-oe-id='%d'>%s</a>")) % (picking.id, picking.name)
+        self.message_post(body=msg)
+
+    def action_open_wh_prep_move(self):
+        self.ensure_one()
+        action = {
+            'name': _('Transfers'),
+            'type': 'ir.actions.act_window',
+            'res_model': 'stock.picking',
+            'view_mode': 'list,form',
+            'domain': [('origin', '=', self.name)],
+            'context': clean_context(self.env.context),
+        }
+        return action

views/approval_request_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="approval_wh_prep_move_request_view_form_inherit" model="ir.ui.view">
+        <field name="name">approval.wh.prep.move.request.view.form.inherit</field>
+        <field name="model">approval.request</field>
+        <field name="inherit_id" ref="approvals.approval_request_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//button[@name='action_get_attachment_view']" position="after">
+                <button name="action_open_wh_prep_move" type="object"
+                    groups="stock.group_stock_user"
+                    class="oe_stat_button" icon="fa-truck"
+                    invisible="picking_count == 0">
+                    <field name="picking_count" string="Transfers"
+                        groups="stock.group_stock_user" widget="statinfo"/>
+                </button>
+            </xpath>
+            <xpath expr="//button[@name='action_confirm']" position="after">
+                <button name="action_create_wh_prep_move" type="object"
+                    groups="stock.group_stock_user"
+                    string="Create WH to Prep Move" class="btn-primary"
+                    data-hotkey="g"
+                    invisible="approval_type != 'wh_prep_move' or request_status != 'approved' or picking_count &gt; 0"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>