Method Model Dengan API Decorator Pada Kustomisasi Odoo 17

Kita akan melanjutkan pembahasan pemrograman Odoo 17 mengenai method yang menggunakan api decorator.

Method model dengan API decorator pada kustomisasi Odoo 17 adalah seperti pada langkah berikut ini

1. Start SSH Filesystem
   
2. Model asrama.room
   

   from odoo import fields, models, api, _
   from odoo.exceptions import ValidationError
   
   class BaseArchive(models.AbstractModel):
   	_name = 'base.archive'
   	active = fields.Boolean(default=True)
   	
   	def do_archive(self):
   		for record in self:
   			record.active = not record.active
   
   class AsramaRoom(models.Model):
       _name = 'asrama.room'
       _inherit = ['base.archive']
       _description = 'Informasi Kamar Asrama'
       _rec_name = 'room_no'
   
       name = fields.Char('Nama kamar',required=True)
       room_no = fields.Char('No kamar',required=True)
       floor_no = fields.Integer('No Lantai',default=1, help='No Lantai')
       currency_id = fields.Many2one('res.currency',string='Mata uang')
       rent_amount = fields.Monetary('Harga sewa',help='Masukkan harga sewa')
   
       hostel_id = fields.Many2one('asrama.hostel','Hostel', help='Nama hostel')    
   
       student_per_room = fields.Integer('Jml pelajar per kamar',required=True,
           help='Jml yang dialokasikan per kamar')
   
       @api.depends('student_per_room','student_ids')
       def _compute_check_availability(self):
           """Mengecek ketersediaan"""
           for rec in self:
               rec.availability = rec.student_per_room - len (rec.student_ids.ids)
       
       availability = fields.Float(compute='_compute_check_availability',store=True,
           string='Ketersediaan',help='Ketersediaan kamar pada asrama')
   
       student_ids = fields.One2many('asrama.student','room_id','Daftar pelajar',
           help='Pelajar-pelajar dalam room ini')
   
       asrama_amenities_ids = fields.Many2many('asrama.amenities',
           'asrama_amenities_rel','room_id','amenity_id',
           string='Amenities', domain="[('active','=',True)]",
           help='Pilih fasilitas room' 
       )
   
       _sql_constraints = [('room_no_unique','unique(room_no)','Nomor room harus unik!')]
   
       @api.constrains('rent_amount')
       def _check_rent_amount(self):
           """Constraint pada nilai negatif"""
           if self.rent_amount < 0:
               raise ValidationError(_('Nilai rental tidak boleh negatif'))
       
       room_rating = fields.Float('Rata-rata Rating dari Room',digits=(14,4))
       state = fields.Selection([
               ('draft','Unavailable'),
               ('available','Available'),
               ('closed','Closed')
           ],
           'State',
           default='draft'
       )
   
       @api.model
       def is_allowed_transition(self,old_state,new_state):
           allowed = [
                ('draft','available'),
                ('available','closed'),
                ('closed','draft')             
           ]
           return (old_state,new_state) in allowed
       
       def change_state(self,new_state):
           for room in self:
               if room.is_allowed_transition(room.state, new_state):
                   room.state = new_state
               else:
                   continue
   
       def make_available(self):
           self.change_state('available')
       
       def make_closed(self):
           self.change_state('closed')
   

3. View asrama_room
   

   <?xml version='1.0' encoding='utf-8'?>
   <odoo>
       <!-- asrama.room tree view -->
       <record id="asrama_room_view_tree" model="ir.ui.view">
           <field name="name">asrama.room.view.tree</field>
           <field name="model">asrama.room</field>
           <field name="arch" type="xml">
               <tree string='Room'>
                   <field name="name"/>
                   <field name="room_no" />
                   <field name="floor_no" />
               </tree>
           </field>
       </record>
   
       <!-- asrama.room form view -->
       <record id="asrama_room_view_form" model="ir.ui.view">
           <field name="name">asrama.room.view.form</field>
           <field name="model">asrama.room</field>
           <field name="arch" type="xml">
               <form string="Room">
                   <sheet>
                       <header>
                           <button name="make_available"  string="Make Available" type="object"/>
                           <button name="make_closed"  string="Make Closed" type="object"/>
                           <field name="state" widget='statusbar'/>
                       </header>
                       <group>
                           <group description='Kamar'>
                               <field name="name" />
                               <field name="room_no" />
                               <field name="hostel_id" required="1"/>
                               <field name="floor_no" />
                               <field name="active" />
                           </group>
                           <group description='Harga'>
                               <field name="student_per_room"/>
                               <field name="availability"/>
                               <field name="rent_amount" />
                               <field name="currency_id" />
                           </group>
                       </group>
                       <notebook>
                           <page name="room_studennt" string="Para Pelajar">
                               <field name="student_ids"/>
                           </page>
                           <page name="asrama_amenities" string="Room Amenities">
                               <group>
                                   <field name="asrama_amenities_ids" widget="many2many_tags"/>
                               </group>
                           </page>
                       </notebook>
                   </sheet>
               </form>
           </field>
       </record>
   
       <!-- asrama.room action window -->
       <record id="asrama_room_action" model="ir.actions.act_window">
           <field name="name">Room</field>
           <field name="type">ir.actions.act_window</field>
           <field name="res_model">asrama.room</field>
           <field name="view_mode">tree,form</field>
           <field name="domain">[]</field>
           <field name="context">{}</field>
           <field name="help" type="html">
               <p class="oe_view_nocontent_create">
                   Tambah kamar
               </p>
           </field>
       </record>
   
       <!-- This Menu Item must have a parent and an action -->
       <menuitem id="asrama_room_menu" name="Room Asrama" parent="hostel_main_menu" action="asrama_room_action" sequence="2"/>
   
   </odoo>
   

4. Start Odoo dan upgrade modul
   
   
5. Tabel asrama_room
   
6. Tampilan
   

Informasi lebih lanjut mengenai decorator pada Odoo silahkan mengunjungi
1. https://www.odoo.com/forum/help-1/when-i-use-api-model-205479 .
2. https://www.cybrosys.com/blog/an-overview-of-method-decorators-in-odoo-17 .

Kunjungi www.proweb.co.id/implementasi-odoo/ untuk menambah wawasan implementasi Odoo ERP.