[ADD] Hotel Management using Odoo Connector

hotel_node_master/models/node_binding/common.py

@@ -0,0 +1,22 @@
+# Copyright 2018 Alexandre Díaz <dev@redneboa.es>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import models, fields, api
+
+
+class NodeBinding(models.AbstractModel):
+    _name = 'node.binding'
+    _inherit = 'external.binding'
+    _description = 'Hotel Node Connector Binding (abstract)'
+
+    external_id = fields.Integer()
+    backend_id = fields.Many2one(
+        comodel_name='node.backend',
+        string='Hotel Node Connector Backend',
+        required=True,
+        ondelete='restrict')
+
+    _sql_constraints = [
+        ('backend_external_id_uniq', 'unique(backend_id, external_id)',
+         'A binding already exists with the same Backend ID.'),
+    ]