Hi everyone,i modify the module rh and now i want to add a field many2one in an other module from employee who have a job professor but i have this error:

ValueError: Invalid field u'job_id.name' in leaf "<osv.extendedleaf: (u'job_id.name',="" u'=", u" prof')="" on="" hr_job="" (ctx:="" )&gt;"<="" p="">

code of the file.py

enter code hereclass school_matiere(osv.osv):
''' matiere '''
_description ='Information sur les matieres'
_name = 'school.matiere'

_columns = {
    'name': fields.char('libelle matiere', size=64, required=True, select=1),
    'code': fields.char('Code matiere', size=20, required=True, select=1),
    'coef_mat': fields.integer('coefficient matiere'),
    'teacher_id': fields.many2one('hr.employee', 'Professeur responsable',required=True),
}

school_matiere()

code of file.xml

enter code here<record model="ir.ui.view" id="view_school_matiere_form">
        <field name="name">school.matiere.form</field>
        <field name="model">school.matiere</field>
        <field name="type">form</field>
        <field name="arch" type="xml">
            <form string="Matiere" version="7.0">
            <sheet>
                <group col="6" colspan="4">
                <field name="teacher_id" domain="[('job_id.name','=','prof')]"/>
                    <field name="name" />
                    <field name="code" />
                    <field name="coef_mat" />
                </group>
                 </sheet>
            </form>
        </field>
    </record>