ERP: addon kosbar_purchase_finance (permintaan barang gudang + approval PO finance)

addons/kosbar_purchase_finance/models/__init__.py

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+from . import purchase_request
+from . import purchase_order

addons/kosbar_purchase_finance/models/purchase_order.py

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+from odoo import models, fields, api
+
+
+class PurchaseOrder(models.Model):
+    _inherit = 'purchase.order'
+
+    finance_state = fields.Selection([
+        ('pending', 'Pending Approval'),
+        ('approved', 'Finance Approved'),
+        ('rejected', 'Rejected'),
+    ], string='Status Finance', default='pending', tracking=True)
+
+    def action_finance_approve(self):
+        """Finance mengklik ini setelah review PO."""
+        return self.write({'finance_state': 'approved'})
+
+    def action_finance_reject(self):
+        """Finance menolak PO — ada catatan di notes."""
+        return self.write({'finance_state': 'rejected'})
+
+    @api.model
+    def _get_state_color(self):
+        # optional: styling di kanban view
+        return {'pending': 'warning', 'approved': 'success', 'rejected': 'danger'}

addons/kosbar_purchase_finance/models/purchase_request.py

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+from odoo import models, fields, api
+
+
+class PurchaseRequest(models.Model):
+    _name = 'kosbar.purchase.request'
+    _description = 'Purchase Request dari Gudang'
+    _order = 'id desc'
+
+    name = fields.Char(
+        string='Nomor Request',
+        required=True,
+        copy=False,
+        readonly=True,
+        default='New',
+    )
+    user_id = fields.Many2one(
+        'res.users',
+        string='Diminta Oleh',
+        default=lambda self: self.env.user,
+        required=True,
+    )
+    date_required = fields.Date(string='Tanggal Dibutuhkan', default=fields.Date.today())
+    state = fields.Selection([
+        ('draft', 'Draft'),
+        ('submitted', 'Submitted'),
+        ('approved', 'Approved / In Progress'),
+        ('done', 'Done'),
+        ('rejected', 'Rejected'),
+    ], string='Status', default='draft', tracking=True)
+
+    line_ids = fields.One2many(
+        'kosbar.purchase.request.line',
+        'request_id',
+        string='Daftar Barang',
+    )
+    notes = fields.Text(string='Catatan / Keperluan')
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            if vals.get('name', 'New') == 'New':
+                seq = self.env['ir.sequence'].next_by_code('kosbar.purchase.request')
+                vals['name'] = seq if seq else 'PR/2026/00001'
+        return super().create(vals_list)
+
+    def action_submit(self):
+        self.write({'state': 'submitted'})
+
+    def action_approve(self):
+        self.write({'state': 'approved'})
+
+    def action_done(self):
+        self.write({'state': 'done'})
+
+    def action_reject(self):
+        self.write({'state': 'rejected'})
+
+    def action_draft(self):
+        self.write({'state': 'draft'})
+
+
+class PurchaseRequestLine(models.Model):
+    _name = 'kosbar.purchase.request.line'
+    _description = 'Detail Item Purchase Request'
+
+    request_id = fields.Many2one('kosbar.purchase.request', string='Request Reference', ondelete='cascade')
+    
+    # Bisa pilih barang existing ATAU buat barang baru langsung
+    is_new_product = fields.Boolean(string='Barang Baru?', default=False)
+    product_id = fields.Many2one('product.product', string='Produk (Existing)')
+    
+    # Jika barang baru
+    new_product_name = fields.Char(string='Nama Barang Baru')
+    categ_id = fields.Many2one('product.category', string='Kategori Barang')
+    
+    product_qty = fields.Float(string='Jumlah', default=1.0, required=True)
+    product_uom = fields.Many2one('uom.uom', string='Satuan', default=lambda self: self.env.ref('uom.product_uom_unit', raise_if_not_found=False))
+    price_unit = fields.Float(string='Estimasi Harga Satuan')
+    notes = fields.Char(string='Keterangan')