[ADD] document_page_group

[UPD] Update document_page_group.pot

[UPD] README.rst

document_page_group/models/document_page.py

@@ -0,0 +1,34 @@
+# Copyright 2019 Creu Blanca
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class DocumentPage(models.Model):
+
+    _inherit = 'document.page'
+
+    group_ids = fields.Many2many(
+        'res.groups',
+        store=True,
+        relation='document_page_direct_group',
+        column1='document_page_id',
+        column2='group_id',
+        compute='_compute_group_ids'
+    )
+    direct_group_ids = fields.Many2many(
+        'res.groups',
+        string='Visible to',
+        help='Set the groups that can view this category and its childs',
+        relation='document_page_group',
+        column1='document_page_id',
+        column2='group_id',
+    )
+
+    @api.depends('direct_group_ids', 'parent_id', 'parent_id.group_ids')
+    def _compute_group_ids(self):
+        for record in self:
+            groups = record.direct_group_ids
+            if record.parent_id:
+                groups |= record.parent_id.group_ids
+            record.group_ids = groups