add education module

education/models/__init__.py

@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+
+from . import education_class
+from . import education_class_group
+from . import education_student

education/models/education_class.py

@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+
+from odoo import models, fields
+
+class EducationClass(models.Model):
+    _name = 'education.class'
+    _description = 'Education Class'
+
+    name = fields.Char(string='Name', required=True)
+    class_group_id = fields.Many2one('education.class.group', string='Class Group', ondelete='restrict')
+    next_class_id = fields.Many2one('education.class', string='Next Class')
+
+    attachment_ids = fields.Many2many('ir.attachment', 'education_student_ir_attachment_rel',
+                                'attachment_id', 'student_id', string='Attachments')

education/models/education_class_group.py

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+from odoo import fields, models
+
+class EductionClassGroup(models.Model):
+    _name = 'education.class.group'
+    _description = 'Education Class Group'
+    _order = 'sequence'
+
+    class_ids = fields.One2many('education.class', 'class_group_id', string='Class of Groups')

education/models/education_student.py

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+from odoo import models, fields
+class EducationStudent(models.Model):
+   _name = 'education.student'
+
+   name = fields.Char(string="Name")
+   student_code = fields.Char(string='Student Code')
+   class_id = fields.Many2one('education.class', string='Class')
+
+   def get_student_has_class(self):
+      return self.env['education.student'].search([('class_id', '!=', False)])