from odoo import models, fields, api
import logging
import psycopg2

from contextlib import contextmanager
import json

class fls(models.TransientModel):
    _name = 'fls'
    _description = 'fls data'

    name = fields.Char()
    description = fields.Char()

    def get_data(self):
        db = self.env['base.external.dbsource'].search([('name', '=', 'fls')], limit=1)

        conn = db.connection_open_postgresql()

        query = 'select nom from public.contact'
        params=None
        metadata=None
        cursor = db.execute_postgresql(query,params,metadata)
        
        self.env['fls'].search([]).unlink()
        vals={}
        #raise Warning(json.dumps(cursor[0][0]))
        i=1
        for row in cursor[0] or []:
            if i==100:break
            vals['name'] = row

            self.create(vals)
            i=i+1

        db.connection_close_postgresql(conn)
        action_vals =  {'name': 'Transient Model from external datasource',
            'type': 'ir.actions.act_window',
            'view_mode': 'tree',
            'res_model': 'fls',
        }
        return action_vals