Odoo Help

0

How do I check for overlapping dates?

By
Martin King
on 2/12/15, 6:00 PM 1,540 views

I've created my first module (a campsite reservation module) and have everything functioning as I'd like except I haven't been able to figure out how to make a constraint to prevent date overlap on a campsite booking.

I have two models, Campsite and Booking.  I've linked to Sales for customer information.  Booking contains start_date, end_date, site_id, customer_id and duration fields.  When making a new booking, I'd like a constraint that checks to see if the requested campsite is already booked for the requested date range.  I have some basic Python and SQL knowledge but I can't figure out a constraint that checks "incoming" dates against "existing" dates in the database.  I know we're supposed to be concise, but thanks for any help!

Baiju's answer below solved my problem! Thanks very much, Baiju! I don't have enough karma yet to reply to his post. I've been using the Odoo 8 module building tutorial and the constraint syntax is different to what Baiju offered. I'm guessing this is from the Openerp 7 API?

Martin King
on 2/13/15, 12:23 PM

Using your original answer, I managed to get this working using the new API: @api.one @api.constrains('start_date', 'end_date') def _check_date_overlap(self): for date in self: date_ids = self.search([('start_date', '=', date.start_date), ('site_id', '=', date.site_id.id), ('id', '', date.id)]) if date_ids: raise exceptions.ValidationError("Dates overlap, please choose different dates.") Thanks again for your help!

Martin King
on 2/13/15, 2:00 PM
1

Baiju KS

--Baiju KS--
3194
| 5 5 8
Kochi, India
--Baiju KS--
ODOO technical

        I like learning new thing, especially technical thing. I am a quick learner, I can learn technical things very fast. I have good logical skill,  I have immense interest in programming.

e-mail id : baijuks@hotmail.com

Baiju KS
On 2/13/15, 2:15 AM

Hi Martin,

You can use this script:-

    _constraints = [
        (_check_date, 'You can not book  same day!', ['start_date','end_date']),
    ]

    def _check_date(self, cr, uid, ids):
        for item in self.browse(cr, uid, ids):
            item_ids = self.search(cr, uid, [('start_date', '<=', item.end_date), ('end_date', '>=', item.start_date),       ('site_id', '=', item.site_id.id), ('id', '<>', item.id)])
            if item_ids:
                return False
        return True

Hope this helps. If any querys please let me know.

About This Community

This platform is for beginners and experts willing to share their Odoo knowledge. It's not a forum to discuss ideas, but a knowledge base of questions and their answers.

Register

Odoo Training Center

Access to our E-learning platform and experience all Odoo Apps through learning videos, exercises and Quizz.

Test it now

Question tools

1 follower(s)

Stats

Asked: 2/12/15, 6:00 PM
Seen: 1540 times
Last updated: 3/16/15, 8:10 AM