继承原生库存模块，为位置模型增加库区库位等字段

sf_warehouse/models/__init__.py

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+from . import model
+

sf_warehouse/models/model.py

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+# -*- coding: utf-8 -*-
+from odoo import fields, models, api
+from odoo.exceptions import ValidationError
+
+
+class SfLocation(models.Model):
+    _inherit = 'stock.location'
+
+    # 重写字段定义
+    name = fields.Char('Location Name', required=True, size=20)
+    barcode = fields.Char('Barcode', copy=False, required=True, size=15)
+
+    # 仓库类别（selection：仓库、库区、库位、货位）
+    location_type = fields.Selection([
+        ('仓库', '仓库'),
+        ('库区', '库区'),
+        ('库位', '库位'),
+        ('货位', '货位')
+    ], string='仓库类别')
+    # 仓库类型(分类：成品库、坯料库、原材料库、刀具库、线边料库、线边刀库)
+    location_category = fields.Selection([
+        ('成品库', '成品库'),
+        ('坯料库', '坯料库'),
+        ('原材料库', '原材料库'),
+        ('刀具库', '刀具库'),
+        ('线边料库', '线边料库'),
+        ('线边刀库', '线边刀库')
+    ], string='仓库类型')
+    # 库区类型（selection：拣货区、存货区、收货区、退货区、次品区）
+    area_type = fields.Selection([
+        ('拣货区', '拣货区'),
+        ('存货区', '存货区'),
+        ('收货区', '收货区'),
+        ('退货区', '退货区'),
+        ('次品区', '次品区')
+    ], string='库区类型')
+    # 货架独有字段：通道、方向、货架高度（m）、货架层数、层数容量
+    channel = fields.Char(string='通道')
+    direction = fields.Selection([
+        ('R', 'R'),
+        ('L', 'L')
+    ], string='方向')
+    shelf_height = fields.Float(string='货架高度(m)')
+    shelf_layer = fields.Integer(string='货架层数')
+    layer_capacity = fields.Integer(string='层数容量')
+
+    # 货位独有字段：货位状态、产品（关联产品对象）、产品序列号（关联产品序列号对象）
+    location_status = fields.Selection([
+        ('空闲', '空闲'),
+        ('占用', '占用'),
+        ('禁用', '禁用')
+    ], string='货位状态', default='空闲')
+    product_id = fields.Many2one('product.template', string='产品')
+    # product_sn_id = fields.Many2one('product.serial.number', string='产品序列号')
+
+    # 添加SQL约束
+    _sql_constraints = [
+        ('name_uniq', 'unique(name)', '位置名称必须唯一!'),
+    ]
+
+    hide_location_type = fields.Boolean(compute='_compute_hide_what', string='隐藏仓库')
+    hide_area = fields.Boolean(compute='_compute_hide_what', string='隐藏库区')
+    hide_shelf = fields.Boolean(compute='_compute_hide_what', string='隐藏货架')
+    hide_location = fields.Boolean(compute='_compute_hide_what', string='隐藏货位')
+
+    @api.depends('location_type')
+    def _compute_hide_what(self):
+        """
+        根据仓库类别，隐藏不需要的字段
+        :return:
+        """
+        for record in self:
+            record.hide_location_type = False
+            record.hide_area = False
+            record.hide_shelf = False
+            record.hide_location = False
+            if record.location_type and record.location_type == '仓库':
+                record.hide_location_type = True
+            elif record.location_type and record.location_type == '库区':
+                record.hide_area = True
+            elif record.location_type and record.location_type == '库位':
+                record.hide_shelf = True
+            elif record.location_type and record.location_type == '货位':
+                record.hide_location = True
+            else:
+                pass
+
+    # # 添加Python约束
+    # @api.constrains('name', 'barcode')
+    # def _check_len(self):
+    #     for rec in self:
+    #         if len(rec.name) > 20:
+    #             raise ValidationError("Location Name length must be less equal than 20!")
+    #         if len(rec.barcode) > 15:
+    #             raise ValidationError("Barcode length must be less equal than 15!")
+
+    @api.model
+    def default_get(self, fields):
+        res = super(SfLocation, self).default_get(fields)
+        if 'barcode' in fields and 'barcode' not in res:
+            # 这里是你生成barcode的代码
+            res['barcode'] = self.generate_barcode()  # 假设你有一个方法generate_barcode来生成barcode
+        return res
+
+    def generate_barcode(self):
+        # 这里是你生成barcode的代码
+        # 这只是一个示例，你需要根据你的实际需求来编写这个方法
+        last_location = self.search([], order='id desc', limit=1)
+        if last_location:
+            last_barcode = int(last_location.barcode or 0)
+            return str(last_barcode + 1).zfill(8)
+        else:
+            return '00000001'