add onchange on fields to fetch to get the list of fields name to use in kpi

mis_builder/models/mis_builder.py

@@ -213,6 +213,13 @@ class mis_report_query(orm.Model):
             res[query.id] = ', '.join(field_name)
         return res
 
+    def onchange_field_ids(self, cr, uid, ids, field_ids, context=None):
+        # compute field_names
+        field_name = []
+        for field in self.pool.get('ir.model.fields').read(cr, uid, field_ids[0][2], ['name'], context=context):
+            field_name.append(field['name'])
+        return {'value': {'field_name': ', '.join(field_name)}}
+
     _columns = {
         'name': fields.char(size=32, required=True,
                             string='Name'),

mis_builder/views/mis_builder.xml

@@ -26,7 +26,8 @@
                             <tree string="Queries" editable="bottom">
                                 <field name="name"/>
                                 <field name="model_id"/>
-                                <field name="field_ids" domain="[('model_id', '=', model_id)]" widget="many2many_tags"/>
+                                <field name="field_ids" domain="[('model_id', '=', model_id)]" widget="many2many_tags"
+                                                        on_change="onchange_field_ids(field_ids, context)"/>
                                 <field name="field_name"/>
                                 <field name="date_field" domain="[('model_id', '=', model_id), ('ttype', 'in', ('date', 'datetime'))]"/>
                                 <field name="domain"/>
@@ -126,6 +127,7 @@
                                 <field name="type"/>
                                 <field name="offset"/>
                                 <field name="duration"/>
+                                <field name="normalize_factor"/>
                                 <field name="date_from"/>
                                 <field name="date_to"/>
                                 <field name="period_from"/>